author | Claus Gittinger <cg@exept.de> |
Fri, 02 Oct 2009 02:08:10 +0200 | |
changeset 12092 | 4e065b823c40 |
parent 11973 | 7cbce184be30 |
child 12253 | c933c6fcdeef |
permissions | -rw-r--r-- |
1 | 1 |
" |
2 |
COPYRIGHT (c) 1993 by Claus Gittinger |
|
300 | 3 |
All Rights Reserved |
1 | 4 |
|
5 |
This software is furnished under a license and may be used |
|
6 |
only in accordance with the terms of that license and with the |
|
7 |
inclusion of the above copyright notice. This software may not |
|
8 |
be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
|
11 |
" |
|
6492 | 12 |
"{ Package: 'stx:libbasic' }" |
13 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
14 |
ArrayedCollection subclass:#UninterpretedBytes |
1266 | 15 |
instanceVariableNames:'' |
3323 | 16 |
classVariableNames:'IsBigEndian' |
1266 | 17 |
poolDictionaries:'' |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
18 |
category:'Collections-Abstract' |
1 | 19 |
! |
20 |
||
3433 | 21 |
!UninterpretedBytes primitiveDefinitions! |
22 |
%{ |
|
23 |
/* |
|
24 |
* Notice: I am abstract, and my subclasses may be anything. |
|
25 |
* Therefore, the code must always handle the fallback case |
|
26 |
* where the receiver is neither an ExternalBytes nor a ByteArray. |
|
27 |
* (which are, however, the most common) |
|
28 |
* |
|
29 |
* macro to fetch my byte address and size-in-bytes; |
|
30 |
* convenient for inline-C code. |
|
31 |
* (yes, C is bad ...) |
|
32 |
*/ |
|
33 |
#define __fetchBytePointerAndSize__(o, pPtr, pSize) \ |
|
34 |
{\ |
|
35 |
if (__isNonNilObject(o)) { \ |
|
4308 | 36 |
if (__qClass(o) == ByteArray) { \ |
37 |
*(pPtr) = (unsigned char *)__ByteArrayInstPtr(o)->ba_element; \ |
|
3433 | 38 |
*(pSize) = __byteArraySize(o); \ |
39 |
} else if (__qClass(o) == ExternalBytes) { \ |
|
40 |
OBJ __sz__ = __externalBytesSize(o); \ |
|
41 |
if (__isSmallInteger(__sz__)) { \ |
|
42 |
*(pSize) = __intVal(__sz__); \ |
|
4308 | 43 |
*(pPtr) = (unsigned char *)(__externalBytesAddress(o)); \ |
3433 | 44 |
} else { \ |
4308 | 45 |
*(pPtr) = (unsigned char *)0; \ |
3433 | 46 |
} \ |
47 |
} else { \ |
|
4308 | 48 |
*(pPtr) = (unsigned char *)0; \ |
3433 | 49 |
} \ |
50 |
} else { \ |
|
4308 | 51 |
*(pPtr) = (unsigned char *)0; \ |
3433 | 52 |
} \ |
53 |
} |
|
54 |
||
55 |
%} |
|
56 |
! ! |
|
57 |
||
68 | 58 |
!UninterpretedBytes class methodsFor:'documentation'! |
1 | 59 |
|
88 | 60 |
copyright |
61 |
" |
|
62 |
COPYRIGHT (c) 1993 by Claus Gittinger |
|
300 | 63 |
All Rights Reserved |
88 | 64 |
|
65 |
This software is furnished under a license and may be used |
|
66 |
only in accordance with the terms of that license and with the |
|
67 |
inclusion of the above copyright notice. This software may not |
|
68 |
be provided or otherwise made available to, or used by, any |
|
69 |
other person. No title to or ownership of the software is |
|
70 |
hereby transferred. |
|
71 |
" |
|
72 |
! |
|
73 |
||
68 | 74 |
documentation |
75 |
" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
76 |
UninterpretedBytes provides the common protocol for byte-storage |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
77 |
containers; concrete subclasses are |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
78 |
ByteArray (which store the bytes within the |
4308 | 79 |
Smalltalk object memory) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
80 |
and |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
81 |
ExternalBytes (which store the bytes in the malloc-heap). |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
82 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
83 |
UninterpretedBytes itself is abstract, so no instances of it can be created. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
84 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
85 |
[See also:] |
4308 | 86 |
ByteArray String ExternalBytes |
1294 | 87 |
|
88 |
[author:] |
|
4308 | 89 |
Claus Gittinger |
3433 | 90 |
|
91 |
[Notice:] |
|
92 |
Notice the confusion due to multiple methods with the same |
|
4308 | 93 |
functionality (i.e. 'xxxx:MSB:' vs. 'xxxx:bigEndian:'). |
94 |
The reason is that at the time this class was written, |
|
95 |
ST80 sid not offer protocol to specify the byteOrder, and |
|
96 |
ST/X provided methods ending in 'MSB:' for this. |
|
97 |
In the meanwhile, VW added protocol ending in 'bigEndian:', |
|
3433 | 98 |
which has been added here for compatibility. |
99 |
(certainly a point, where an ansi-standard will help) |
|
68 | 100 |
" |
101 |
! ! |
|
1 | 102 |
|
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
103 |
!UninterpretedBytes class methodsFor:'instance creation'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
104 |
|
8995
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
105 |
from:aByteArray |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
106 |
"return new instance which is a copy of aByteArray" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
107 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
108 |
|len bytes| |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
109 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
110 |
len := aByteArray size. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
111 |
bytes := self new:len. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
112 |
bytes replaceBytesFrom:1 to:len with:aByteArray startingAt:1. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
113 |
^ bytes |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
114 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
115 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
116 |
String from:#[40 41 42] |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
117 |
String with:#[40 41 42 43 44 45 46 47 48 49 50] from:2 to:5 |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
118 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
119 |
! |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
120 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
121 |
fromHexString:aString |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
122 |
"Dolphin compatibility: |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
123 |
decode a byteArray from a hex string (as generated by hexPrintOn:)" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
124 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
125 |
|sz "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
126 |
chars s bytes| |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
127 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
128 |
sz := aString size. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
129 |
sz == 0 ifTrue:[^ self new]. |
11973 | 130 |
sz odd ifTrue:[ ConversionError raiseErrorString:'invalid hex string (odd size)' ]. |
8995
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
131 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
132 |
bytes := self new:(sz // 2). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
133 |
s := aString readStream. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
134 |
1 to:sz // 2 do:[:idx | |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
135 |
chars := s next:2. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
136 |
bytes at:idx put:(Integer readFrom:chars radix:16). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
137 |
]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
138 |
^ bytes |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
139 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
140 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
141 |
ByteArray fromHexString:'1234FEFF' |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
142 |
ExternalBytes fromHexString:'1234FEFF' |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
143 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
144 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
145 |
|s| |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
146 |
s := String streamContents:[:s | #[1 2 3] hexPrintOn:s]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
147 |
ByteArray fromHexString:s |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
148 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
149 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
150 |
"Modified: / 6.3.1997 / 15:28:52 / cg" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
151 |
! |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
152 |
|
11874
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
153 |
fromHexStringWithSeparators:aString |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
154 |
"read a bytearray from a printed string representation, where |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
155 |
individual bytes are encoded as two hex digits, optionally separated by whiteSpace. |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
156 |
See also fromHexString:, which does something similar, but does not allow for spaces" |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
157 |
|
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
158 |
^ self streamContents:[:outStream | |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
159 |
|inStream h| |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
160 |
|
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
161 |
inStream := aString readStream. |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
162 |
inStream skipSeparators. |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
163 |
[inStream atEnd] whileFalse:[ |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
164 |
h := inStream next:2. |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
165 |
outStream nextPut:(Integer readFrom:h base:16). |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
166 |
inStream skipSeparators |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
167 |
]. |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
168 |
]. |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
169 |
|
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
170 |
" |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
171 |
ByteArray fromHexString:'1234FEFF' |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
172 |
ByteArray fromHexStringWithSeparators:' 12 34 FE FF' |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
173 |
" |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
174 |
! |
aebca3972774
+fromHexStringWithSeparators
Claus Gittinger <cg@exept.de>
parents:
11852
diff
changeset
|
175 |
|
8995
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
176 |
fromPackedString:aString |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
177 |
"ST-80 compatibility: decode a byteArray from a packed string in which |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
178 |
6bits are encoded per character. The argument, aString must be a multiple |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
179 |
of 4 in size (since 24 is the lcm of 6 and 8). This is somewhat like |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
180 |
the radix-encoding used in good old PDP11 times ;-) |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
181 |
ST-80 uses this encoding for Images ... |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
182 |
This is very similar (but not equal) to the algorithm used in RFC1421. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
183 |
PS: It took a while to figure that one out ... I dont like it ;-)" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
184 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
185 |
|index "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
186 |
dstIndex "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
187 |
stop "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
188 |
sixBits "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
189 |
n "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
190 |
sz "{ Class: SmallInteger }" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
191 |
lastCharacter bytes| |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
192 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
193 |
sz := aString size. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
194 |
sz == 0 ifTrue:[^ self new]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
195 |
sz := sz - (aString occurrencesOf:Character linefeed). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
196 |
sz := sz - (aString occurrencesOf:Character return). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
197 |
sz := sz - (aString occurrencesOf:Character tab). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
198 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
199 |
stop := sz // 4 * 3. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
200 |
"the size modulo 3 is encoded in the last character, if its in the |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
201 |
range 97 .. otherwise, its exact." |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
202 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
203 |
lastCharacter := aString last. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
204 |
lastCharacter codePoint > 96 ifTrue:[ |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
205 |
stop := stop - 3 + lastCharacter codePoint - 96 |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
206 |
]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
207 |
bytes := self new:stop. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
208 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
209 |
index := 1. dstIndex := 1. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
210 |
[dstIndex <= stop] whileTrue:[ |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
211 |
"/ take 4 characters ... |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
212 |
"/ allow a line break before each group of 4 |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
213 |
sixBits := (aString at:index) codePoint. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
214 |
[sixBits < 32] whileTrue:[ |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
215 |
index := index + 1. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
216 |
sixBits := (aString at:index) codePoint. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
217 |
]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
218 |
sixBits := sixBits bitAnd:16r3F. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
219 |
n := sixBits. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
220 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
221 |
sixBits := (aString at:index+1) codePoint. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
222 |
sixBits := sixBits bitAnd:16r3F. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
223 |
n := (n bitShift:6) + sixBits. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
224 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
225 |
sixBits := (aString at:index+2) codePoint. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
226 |
sixBits := sixBits bitAnd:16r3F. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
227 |
n := (n bitShift:6) + sixBits. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
228 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
229 |
sixBits := (aString at:index+3) codePoint. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
230 |
sixBits := sixBits bitAnd:16r3F. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
231 |
n := (n bitShift:6) + sixBits. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
232 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
233 |
index := index + 4. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
234 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
235 |
"/ now have 24 bits in n |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
236 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
237 |
bytes at:dstIndex put:(n bitShift:-16). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
238 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
239 |
dstIndex < stop ifTrue:[ |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
240 |
bytes at:dstIndex+1 put:((n bitShift:-8) bitAnd:16rFF). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
241 |
dstIndex+2 <= stop ifTrue:[ |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
242 |
bytes at:dstIndex+2 put:(n bitAnd:16rFF). |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
243 |
] |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
244 |
]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
245 |
dstIndex := dstIndex + 3. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
246 |
]. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
247 |
^ bytes |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
248 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
249 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
250 |
ByteArray fromPackedString:(#[1 1 1 1] asPackedString) |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
251 |
ByteArray fromPackedString:(#[1 1 1 1 1] asPackedString) |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
252 |
ByteArray fromPackedString:(#[1 1 1 1 1 1] asPackedString) |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
253 |
ByteArray fromPackedString:(#[1 1 1 1 1 1 1] asPackedString) |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
254 |
ByteArray fromPackedString:(#[1 1 1 1 1 1 1 1] asPackedString) |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
255 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
256 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
257 |
"Modified: / 6.3.1997 / 15:28:52 / cg" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
258 |
"Modified: / 18.12.1997 / 17:17:11 / stefan" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
259 |
! |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
260 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
261 |
with:aByteArray from:start to:stop |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
262 |
"return new instance with a copy of aByteArray |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
263 |
beginning at index start up to and including index stop" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
264 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
265 |
|len bytes| |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
266 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
267 |
len := stop-start+1. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
268 |
bytes := self new:len. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
269 |
bytes replaceBytesFrom:1 to:len with:aByteArray startingAt:start. |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
270 |
^ bytes |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
271 |
|
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
272 |
" |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
273 |
String with:#[40 41 42 43 44 45 46 47 48 49 50] from:2 to:5 |
ab9905b339bb
Moved some methods from ByteArray -> UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
8986
diff
changeset
|
274 |
" |
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
275 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
276 |
|
1 | 277 |
!UninterpretedBytes class methodsFor:'queries'! |
278 |
||
8893 | 279 |
isAbstract |
11220 | 280 |
"Return if this class is an abstract class. |
281 |
True is returned for UninterpretedBytes here; false for subclasses. |
|
282 |
Abstract subclasses must redefine again." |
|
283 |
||
8893 | 284 |
^ self == UninterpretedBytes |
285 |
! |
|
286 |
||
1 | 287 |
isBigEndian |
77 | 288 |
"return true, if words/shorts store the most-significant |
289 |
byte first (MSB), false if least-sign.-first (LSB). |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
290 |
I.e. false for vax, intel; true for m68k, sun. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
291 |
|
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
292 |
Notice: UninterpretedBytes isBigEndian |
4308 | 293 |
this is inlined both by stc and the jit compiler" |
1 | 294 |
|
295 |
%{ /* NOCONTEXT */ |
|
296 |
||
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
297 |
#if defined(__MSBFIRST__) |
3936 | 298 |
RETURN (true); |
299 |
#else |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
300 |
# if defined(__LSBFIRST__) |
4275 | 301 |
RETURN (false); |
302 |
# else |
|
1 | 303 |
/* |
304 |
* I dont like ifdefs - you always forget some ... |
|
3433 | 305 |
* therefore we look into a structure at run-time. |
306 |
* (also, there are CPUs around [mips], where the byteorder |
|
307 |
* is programmable, and which come in different flavours) |
|
308 |
* |
|
309 |
* NOTICE: |
|
310 |
* both the JIT and stc may inline this to a |
|
311 |
* constant for systems where this is known. |
|
1 | 312 |
*/ |
313 |
union { |
|
4308 | 314 |
unsigned int u_l; |
315 |
char u_c[sizeof(int)]; |
|
1 | 316 |
} u; |
317 |
||
318 |
u.u_l = 0x87654321; |
|
77 | 319 |
if (u.u_c[0] == 0x21) RETURN (false); |
320 |
RETURN (true); |
|
4275 | 321 |
# endif |
3936 | 322 |
#endif |
1 | 323 |
%} |
3433 | 324 |
" |
325 |
UninterpretedBytes isBigEndian |
|
326 |
" |
|
3209 | 327 |
! |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
328 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
329 |
isBuiltInClass |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
330 |
"return true if this class is known by the run-time-system. |
3323 | 331 |
Here, true is returned, since UninterpretedBytes is the superclass of |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
332 |
some builtIn classes (ByteArray & ExternalBytes)" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
333 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
334 |
^ self == UninterpretedBytes |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
335 |
|
3323 | 336 |
"Modified: / 23.4.1996 / 15:56:25 / cg" |
337 |
"Modified: / 5.3.1998 / 14:56:22 / stefan" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
338 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
339 |
|
9185 | 340 |
!UninterpretedBytes methodsFor:'Compatibility-V''Age'! |
341 |
||
342 |
uint32At:zeroBasedIndex |
|
343 |
"return the 4-bytes starting at index as (unsigned) Integer. |
|
344 |
The index is a C index (i.e. 0-based). |
|
345 |
The value is retrieved in the machines natural byte order. |
|
346 |
Similar to unsignedLongAt:, except for the index base" |
|
347 |
||
348 |
^ self unsignedLongAt:zeroBasedIndex+1 |
|
349 |
||
350 |
" |
|
351 |
|b| |
|
352 |
||
353 |
b := ByteArray withAll:#(0 0 0 0). |
|
354 |
b uint32At:0 put:16r12345678. |
|
355 |
b uint32At:0. |
|
356 |
b |
|
357 |
" |
|
358 |
! |
|
359 |
||
360 |
uint32At:zeroBasedIndex put:anInteger |
|
361 |
"set the 4-bytes starting at index to the value given by (unsigned) Integer. |
|
362 |
The index is a C index (i.e. 0-based). |
|
363 |
The value is stored in the machines natural byte order. |
|
364 |
Similar to unsignedLongAt:put:, except for the index base" |
|
365 |
||
366 |
^ self unsignedLongAt:zeroBasedIndex+1 put:anInteger |
|
367 |
||
368 |
" |
|
369 |
|b| |
|
370 |
||
371 |
b := ByteArray withAll:#(0 0 0 0). |
|
372 |
b uint32At:0 put:16r12345678. |
|
373 |
b |
|
374 |
" |
|
375 |
! ! |
|
376 |
||
3459 | 377 |
!UninterpretedBytes methodsFor:'accessing-bytes'! |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
378 |
|
4422 | 379 |
bcdByteAt:index |
380 |
"return the bcd-value for a byte at index." |
|
381 |
||
4425 | 382 |
^ (self byteAt:index) decodeFromBCD |
4422 | 383 |
|
384 |
" |
|
385 |
#[ 16r55 ] bcdByteAt:1 |
|
386 |
#[ 16r99] bcdByteAt:1 |
|
387 |
#[ 16rAA] bcdByteAt:1 |
|
388 |
" |
|
389 |
! |
|
390 |
||
391 |
bcdByteAt:index put:aNumber |
|
392 |
"set the byte at index as bcd-value." |
|
393 |
||
394 |
(aNumber between:0 and:99) ifFalse:[ |
|
4530
793b116fef3e
error: vs. error:mayProceed:
Claus Gittinger <cg@exept.de>
parents:
4515
diff
changeset
|
395 |
self error:'invalid value for BCD encoding' |
4422 | 396 |
]. |
4425 | 397 |
^ self byteAt:index put:aNumber encodeAsBCD |
4422 | 398 |
|
399 |
" |
|
4425 | 400 |
(((ByteArray new:1) bcdByteAt:1 put:55; yourself) at:1) hexPrintString |
401 |
(((ByteArray new:1) bcdByteAt:1 put:99; yourself) at:1) hexPrintString |
|
402 |
(((ByteArray new:1) bcdByteAt:1 put:100; yourself) at:1) hexPrintString |
|
403 |
(((ByteArray new:1) bcdByteAt:1 put:-1; yourself) at:1) hexPrintString |
|
4422 | 404 |
" |
405 |
! |
|
406 |
||
3459 | 407 |
signedByteAt:index |
408 |
"return the byte at index as a signed 8 bit value. |
|
409 |
The index is a smalltalk index (i.e. 1-based). |
|
410 |
This may be worth a primitive." |
|
411 |
||
412 |
^ (self at:index) signExtendedByteValue |
|
413 |
||
414 |
" |
|
415 |
|b| |
|
416 |
b := ByteArray new:2. |
|
417 |
b at:1 put:16rFF. |
|
418 |
b at:2 put:16r7F. |
|
419 |
b signedByteAt:1 |
|
420 |
" |
|
421 |
||
422 |
"Modified: 1.7.1996 / 21:13:53 / cg" |
|
423 |
! |
|
424 |
||
425 |
signedByteAt:index put:aSignedByteValue |
|
426 |
"return the byte at index as a signed 8 bit value. |
|
427 |
The index is a smalltalk index (i.e. 1-based). |
|
428 |
Return the signedByteValue argument. |
|
429 |
This may be worth a primitive." |
|
430 |
||
431 |
|b "{ Class: SmallInteger }"| |
|
432 |
||
433 |
aSignedByteValue >= 0 ifTrue:[ |
|
434 |
b := aSignedByteValue |
|
435 |
] ifFalse:[ |
|
436 |
b := 16r100 + aSignedByteValue |
|
437 |
]. |
|
438 |
self at:index put:b. |
|
439 |
^ aSignedByteValue |
|
440 |
||
441 |
" |
|
442 |
|b| |
|
443 |
b := ByteArray new:2. |
|
444 |
b signedByteAt:1 put:-1. |
|
445 |
b at:1 |
|
446 |
" |
|
447 |
||
448 |
"Modified: 1.7.1996 / 21:12:37 / cg" |
|
449 |
! ! |
|
450 |
||
451 |
!UninterpretedBytes methodsFor:'accessing-floats & doubles'! |
|
452 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
453 |
doubleAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
454 |
"return the 8-bytes starting at index as a Float. |
3433 | 455 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
456 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
457 |
Notice also, that the bytes are expected to be in this machines |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
458 |
float representation - if the bytearray originated from another |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
459 |
machine, some conversion is usually needed." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
460 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
461 |
|newFloat| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
462 |
|
3433 | 463 |
%{ |
464 |
/* |
|
465 |
* handle the most common cases fast ... |
|
466 |
*/ |
|
467 |
if (__isSmallInteger(index)) { |
|
4308 | 468 |
unsigned char *cp; |
3433 | 469 |
int sz; |
4308 | 470 |
|
3433 | 471 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
4308 | 472 |
if (cp) { |
3433 | 473 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
474 |
||
3434 | 475 |
if ((idx+(sizeof(double)-1)) < sz) { |
3433 | 476 |
cp += idx; |
477 |
/* |
|
478 |
* aligned |
|
479 |
*/ |
|
3434 | 480 |
if (((INT)cp & (sizeof(double)-1)) == 0) { |
3433 | 481 |
double dVal = ((double *)cp)[0]; |
3434 | 482 |
OBJ f; |
483 |
||
484 |
__qMKFLOAT(f, dVal); |
|
4308 | 485 |
RETURN (f); |
3433 | 486 |
} |
487 |
} |
|
488 |
} |
|
489 |
} |
|
490 |
%}. |
|
491 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
492 |
newFloat := Float basicNew. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
493 |
1 to:8 do:[:destIndex| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
494 |
newFloat basicAt:destIndex put:(self at:index - 1 + destIndex) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
495 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
496 |
^ newFloat. |
3433 | 497 |
|
498 |
" |
|
499 |
|b| |
|
500 |
||
501 |
b := ByteArray new:20. |
|
502 |
b doubleAt:1 put:(Float pi). |
|
503 |
Transcript showCR:b. |
|
504 |
Transcript showCR:(b doubleAt:1) |
|
505 |
" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
506 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
507 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
508 |
doubleAt:index MSB:msb |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
509 |
"return the 8-bytes starting at index as a Float. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
510 |
The index is a smalltalk index (i.e. 1-based). |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
511 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
512 |
Notice also, that the bytes are expected to be in this machines |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
513 |
float representation - if the bytearray originated from another |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
514 |
machine, some conversion is usually needed." |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
515 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
516 |
|newFloat| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
517 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
518 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 519 |
^ self doubleAt:index. |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
520 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
521 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
522 |
newFloat := Float basicNew. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
523 |
1 to:8 do:[:destIndex| |
4308 | 524 |
newFloat basicAt:(9-destIndex) put:(self at:index - 1 + destIndex) |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
525 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
526 |
^ newFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
527 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
528 |
"Created: / 15.5.1998 / 17:21:45 / cg" |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
529 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
530 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
531 |
doubleAt:index put:aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
532 |
"store the value of the argument, aFloat into the receiver |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
533 |
starting at index. |
3433 | 534 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
535 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
536 |
Notice also, that the bytes are expected to be in this machines |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
537 |
float representation - if the bytearray originated from another |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
538 |
machine, some conversion is usually needed." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
539 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
540 |
|flt| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
541 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
542 |
flt := aFloat asFloat. |
3433 | 543 |
%{ |
544 |
/* |
|
545 |
* handle the most common cases fast ... |
|
546 |
*/ |
|
547 |
if (__isSmallInteger(index) && __isFloat(flt)) { |
|
4308 | 548 |
unsigned char *cp; |
549 |
int sz; |
|
3433 | 550 |
|
4308 | 551 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
552 |
if (cp) { |
|
553 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3433 | 554 |
|
4308 | 555 |
if ((idx+(sizeof(double)-1)) < sz) { |
556 |
cp += idx; |
|
557 |
/* |
|
558 |
* aligned |
|
559 |
*/ |
|
560 |
if (((INT)cp & (sizeof(double)-1)) == 0) { |
|
561 |
((double *)cp)[0] = __floatVal(flt); |
|
562 |
RETURN (aFloat); |
|
563 |
} |
|
564 |
} |
|
565 |
} |
|
3433 | 566 |
} |
567 |
%}. |
|
568 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
569 |
1 to:8 do:[:srcIndex| |
4308 | 570 |
self at:index - 1 + srcIndex put:(flt basicAt:srcIndex) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
571 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
572 |
^ aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
573 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
574 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
575 |
doubleAt:index put:aFloat MSB:msb |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
576 |
"store the value of the argument, aFloat into the receiver |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
577 |
starting at index. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
578 |
The index is a smalltalk index (i.e. 1-based). |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
579 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
580 |
Notice also, that the bytes are expected to be in this machines |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
581 |
float representation - if the bytearray originated from another |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
582 |
machine, some conversion is usually needed." |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
583 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
584 |
|flt| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
585 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
586 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 587 |
^ self doubleAt:index put:aFloat. |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
588 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
589 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
590 |
flt := aFloat asFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
591 |
1 to:8 do:[:srcIndex| |
4308 | 592 |
self at:index - 1 + srcIndex put:(flt basicAt:(9-srcIndex)) |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
593 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
594 |
^ aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
595 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
596 |
"Created: / 15.5.1998 / 17:22:27 / cg" |
3447 | 597 |
"Modified: / 15.5.1998 / 17:26:29 / cg" |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
598 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
599 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
600 |
floatAt:index |
3434 | 601 |
"return the 4-bytes starting at index as a ShortFloat. |
3433 | 602 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
603 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80; |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
604 |
therefore this method reads a 4-byte float from the byteArray and returns |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
605 |
a float object which keeps an 8-byte double internally. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
606 |
Notice also, that the bytes are expected to be in this machines |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
607 |
float representation and order - if the bytearray originated from another |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
608 |
machine, some conversion is usually needed." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
609 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
610 |
|newFloat| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
611 |
|
3434 | 612 |
%{ |
613 |
/* |
|
614 |
* handle the most common cases fast ... |
|
615 |
*/ |
|
616 |
if (__isSmallInteger(index)) { |
|
4308 | 617 |
unsigned char *cp; |
618 |
int sz; |
|
3434 | 619 |
|
4308 | 620 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
621 |
if (cp) { |
|
622 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 623 |
|
4308 | 624 |
if ((idx+(sizeof(float)-1)) < sz) { |
625 |
cp += idx; |
|
626 |
/* |
|
627 |
* aligned |
|
628 |
*/ |
|
629 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
630 |
float fVal = ((float *)cp)[0]; |
|
3434 | 631 |
OBJ f; |
632 |
||
633 |
__qMKSFLOAT(f, fVal); |
|
4308 | 634 |
RETURN (f); |
635 |
} |
|
636 |
} |
|
637 |
} |
|
3434 | 638 |
} |
639 |
%}. |
|
640 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
641 |
newFloat := ShortFloat basicNew. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
642 |
1 to:4 do:[:destIndex| |
4308 | 643 |
newFloat basicAt:destIndex put:(self at:index - 1 + destIndex) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
644 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
645 |
^ newFloat. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
646 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
647 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
648 |
floatAt:index MSB:msb |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
649 |
"return the 4-bytes starting at index as a ShortFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
650 |
The index is a smalltalk index (i.e. 1-based). |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
651 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80; |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
652 |
therefore this method reads a 4-byte float from the byteArray and returns |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
653 |
a float object which keeps an 8-byte double internally. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
654 |
Notice also, that the bytes are expected to be in this machines |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
655 |
float representation and order - if the bytearray originated from another |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
656 |
machine, some conversion is usually needed." |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
657 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
658 |
|newFloat| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
659 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
660 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 661 |
^ self floatAt:index |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
662 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
663 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
664 |
newFloat := ShortFloat basicNew. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
665 |
1 to:4 do:[:destIndex| |
4308 | 666 |
newFloat basicAt:(5-destIndex) put:(self at:index - 1 + destIndex) |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
667 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
668 |
^ newFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
669 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
670 |
"Modified: / 15.5.1998 / 17:20:19 / cg" |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
671 |
"Created: / 15.5.1998 / 17:20:35 / cg" |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
672 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
673 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
674 |
floatAt:index put:aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
675 |
"store the 4 bytes of value of the argument, aFloat into the receiver |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
676 |
starting at index. |
3433 | 677 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
678 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
679 |
Notice also, that the bytes are expected to be in this machines |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
680 |
float representation - if the bytearray originated from another |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
681 |
machine, some conversion is usually needed." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
682 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
683 |
|sflt| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
684 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
685 |
sflt := aFloat asShortFloat. |
3434 | 686 |
%{ |
687 |
/* |
|
688 |
* handle the most common cases fast ... |
|
689 |
*/ |
|
690 |
if (__isSmallInteger(index) && __isShortFloat(sflt)) { |
|
4308 | 691 |
unsigned char *cp; |
692 |
int sz; |
|
3434 | 693 |
|
4308 | 694 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
695 |
if (cp) { |
|
696 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 697 |
|
4308 | 698 |
if ((idx+(sizeof(float)-1)) < sz) { |
699 |
cp += idx; |
|
700 |
/* |
|
701 |
* aligned |
|
702 |
*/ |
|
703 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
704 |
((float *)cp)[0] = __shortFloatVal(sflt); |
|
3434 | 705 |
|
4308 | 706 |
RETURN (aFloat); |
707 |
} |
|
708 |
} |
|
709 |
} |
|
3434 | 710 |
} |
711 |
%}. |
|
712 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
713 |
1 to:4 do:[:srcIndex| |
4308 | 714 |
self at:index - 1 + srcIndex put:(sflt basicAt:srcIndex) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
715 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
716 |
^ aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
717 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
718 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
719 |
floatAt:index put:aFloat MSB:msb |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
720 |
"store the 4 bytes of value of the argument, aFloat into the receiver |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
721 |
starting at index. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
722 |
The index is a smalltalk index (i.e. 1-based). |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
723 |
Notice, that (currently) ST/X Floats are what Doubles are in ST-80. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
724 |
Notice also, that the bytes are expected to be in this machines |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
725 |
float representation - if the bytearray originated from another |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
726 |
machine, some conversion is usually needed." |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
727 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
728 |
|sflt| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
729 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
730 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 731 |
^ self floatAt:index put:aFloat |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
732 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
733 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
734 |
sflt := aFloat asShortFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
735 |
1 to:4 do:[:srcIndex| |
4308 | 736 |
self at:index - 1 + srcIndex put:(sflt basicAt:(5-srcIndex)) |
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
737 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
738 |
^ aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
739 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
740 |
"Created: / 15.5.1998 / 17:20:41 / cg" |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
741 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
742 |
|
3323 | 743 |
ieeeDoubleAt:index |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
744 |
"retrieve the 8 bytes starting at index as a float. |
3433 | 745 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 746 |
The 8 bytes are assumed to be in IEEE floating point single precision |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
747 |
number format." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
748 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
749 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
750 |
currently, we assume that the machines native number format is already |
3323 | 751 |
IEEE format - we need some more code here whenever ST/X is ported |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
752 |
to an IBM 370 or old VAX etc. |
3323 | 753 |
To date, all supported systems use IEEE float numbers, so there should be |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
754 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
755 |
" |
9258 | 756 |
Float isIEEEFormat ifFalse:[self error:'unsupported operation']. |
3433 | 757 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
758 |
^ self doubleAt:index |
3323 | 759 |
|
760 |
"Created: / 5.3.1998 / 10:50:03 / stefan" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
761 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
762 |
|
3323 | 763 |
ieeeDoubleAt:index put:aFloat |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
764 |
"store the value of the argument, aFloat into the receiver |
3433 | 765 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 766 |
starting at index. Storage is in IEEE floating point double precision format. |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
767 |
(i.e. 8 bytes are stored)." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
768 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
769 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
770 |
currently, we assume that the machines native number format is already |
3323 | 771 |
IEEE format - we need some more code here whenever ST/X is ported |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
772 |
to an IBM 370 or old VAX etc. |
3323 | 773 |
To date, all supported systems use IEEE float numbers, so there should be |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
774 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
775 |
" |
9258 | 776 |
Float isIEEEFormat ifFalse:[self error:'unsupported operation']. |
3433 | 777 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
778 |
^ self doubleAt:index put:aFloat |
3323 | 779 |
|
780 |
"Created: / 5.3.1998 / 10:50:26 / stefan" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
781 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
782 |
|
3323 | 783 |
ieeeFloatAt:index |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
784 |
"retrieve the 4 bytes starting at index as a float. |
3433 | 785 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 786 |
The 4 bytes are assumed to be in IEEE floating point single precision |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
787 |
number format." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
788 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
789 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
790 |
currently, we assume that the machines native number format is already |
3323 | 791 |
IEEE format - we need some more code here whenever ST/X is ported |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
792 |
to an IBM 370 or old VAX etc. |
3323 | 793 |
To date, all supported systems use IEEE float numbers, so there should be |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
794 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
795 |
" |
9258 | 796 |
ShortFloat isIEEEFormat ifFalse:[self error:'unsupported operation']. |
3433 | 797 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
798 |
^ self floatAt:index |
3323 | 799 |
|
800 |
"Created: / 5.3.1998 / 10:50:45 / stefan" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
801 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
802 |
|
3323 | 803 |
ieeeFloatAt:index put:aFloat |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
804 |
"store the value of the argument, aFloat into the receiver |
3433 | 805 |
starting at index, which is a smalltalk index (i.e. 1-based). |
806 |
Storage is in IEEE floating point single precision format. |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
807 |
(i.e. 4 bytes are stored). Since ST/X floats are really doubles, the low- |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
808 |
order 4 bytes of the precision is lost." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
809 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
810 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
811 |
currently, we assume that the machines native number format is already |
3323 | 812 |
IEEE format - we need some more code here whenever ST/X is ported |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
813 |
to an IBM 370 or old VAX etc. |
3323 | 814 |
To date, all supported systems use IEEE float numbers, so there should be |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
815 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
816 |
" |
9258 | 817 |
ShortFloat isIEEEFormat ifFalse:[self error:'unsupported operation']. |
3433 | 818 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
819 |
^ self floatAt:index put:aFloat |
3323 | 820 |
|
821 |
"Created: / 5.3.1998 / 10:51:11 / stefan" |
|
3459 | 822 |
! ! |
823 |
||
824 |
!UninterpretedBytes methodsFor:'accessing-longlongs'! |
|
825 |
||
826 |
longLongAt:index |
|
827 |
"return the 8-bytes starting at index as a signed Integer. |
|
828 |
The index is a smalltalk index (i.e. 1-based). |
|
829 |
The value is retrieved in the machines natural byte order. |
|
830 |
This may be worth a primitive." |
|
831 |
||
832 |
|w| |
|
833 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
834 |
w := self unsignedLongLongAt:index bigEndian:(UninterpretedBytes isBigEndian). |
3459 | 835 |
(w > (16r7FFFFFFFFFFFFFFF)) ifTrue:[ |
4308 | 836 |
^ w - (16r10000000000000000) |
3459 | 837 |
]. |
838 |
^ w |
|
839 |
||
840 |
" |
|
841 |
|b| |
|
842 |
b := ByteArray new:4. |
|
843 |
b unsignedLongLongAt:1 put:16rFFFFFFFFFFFFFFFF. |
|
844 |
(b longLongAt:1) |
|
845 |
" |
|
846 |
||
847 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
848 |
"Created: / 5.3.1998 / 14:40:05 / stefan" |
|
849 |
"Modified: / 5.3.1998 / 14:58:32 / stefan" |
|
850 |
! |
|
851 |
||
852 |
longLongAt:index bigEndian:msb |
|
853 |
"return the 8-bytes starting at index as a signed Integer. |
|
854 |
The index is a smalltalk index (i.e. 1-based). |
|
855 |
The value is retrieved in the given byte order. |
|
856 |
This may be worth a primitive." |
|
857 |
||
858 |
|w| |
|
859 |
||
860 |
w := self unsignedLongLongAt:index bigEndian:msb. |
|
861 |
(w > (16r7FFFFFFFFFFFFFFF)) ifTrue:[ |
|
4308 | 862 |
^ w - (16r10000000000000000) |
3459 | 863 |
]. |
864 |
^ w |
|
865 |
||
866 |
" |
|
867 |
|b| |
|
868 |
b := ByteArray new:4. |
|
869 |
b unsignedLongLongAt:1 put:16rFFFFFFFFFFFFFFFF. |
|
870 |
(b longLongAt:1 msb:true) |
|
871 |
" |
|
872 |
||
873 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
874 |
"Created: / 5.3.1998 / 14:40:54 / stefan" |
|
875 |
"Modified: / 9.5.1998 / 01:10:59 / cg" |
|
876 |
! |
|
877 |
||
878 |
longLongAt:byteIndex put:anInteger |
|
879 |
"store a signed longLong (64bit) integer. |
|
880 |
The index is a smalltalk index (i.e. 1-based). |
|
881 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
882 |
||
7813 | 883 |
|v| |
3459 | 884 |
|
7813 | 885 |
v := anInteger. |
886 |
anInteger < 0 ifTrue:[ |
|
887 |
v := v + 16r10000000000000000 |
|
888 |
]. |
|
889 |
^ self unsignedLongLongAt:byteIndex put:v |
|
3459 | 890 |
! |
891 |
||
892 |
longLongAt:byteIndex put:anInteger bigEndian:msb |
|
893 |
"store a signed longLong (64bit) integer. |
|
894 |
The index is a smalltalk index (i.e. 1-based). |
|
895 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
896 |
||
897 |
|v| |
|
898 |
||
899 |
v := anInteger. |
|
900 |
anInteger < 0 ifTrue:[ |
|
4308 | 901 |
v := v + 16r10000000000000000 |
3459 | 902 |
]. |
903 |
^ self unsignedLongLongAt:byteIndex put:v bigEndian:msb |
|
904 |
||
905 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
906 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
907 |
! |
|
908 |
||
909 |
quadWordAt:index MSB:msb |
|
910 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
911 |
The index is a smalltalk index (i.e. 1-based). |
|
912 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
913 |
||
914 |
|l |
|
915 |
bIdx "{ Class: SmallInteger }" |
|
916 |
delta "{ Class: SmallInteger }"| |
|
917 |
||
918 |
l := LargeInteger basicNew numberOfDigits:8. |
|
919 |
msb ifTrue:[ |
|
4308 | 920 |
bIdx := index + 7. |
921 |
delta := -1 |
|
3459 | 922 |
] ifFalse:[ |
4308 | 923 |
bIdx := index. |
924 |
delta := 1 |
|
3459 | 925 |
]. |
926 |
1 to:8 do:[:i | |
|
4308 | 927 |
l digitAt:i put:(self basicAt:bIdx). |
928 |
bIdx := bIdx + delta |
|
3459 | 929 |
]. |
930 |
^ l compressed |
|
931 |
||
932 |
" |
|
933 |
|b| |
|
934 |
||
935 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
936 |
(b quadWordAt:1 MSB:false) printStringRadix:16 |
|
937 |
" |
|
938 |
||
939 |
"Modified: 5.11.1996 / 14:06:21 / cg" |
|
940 |
! |
|
941 |
||
942 |
quadWordAt:index put:anInteger MSB:msb |
|
943 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
944 |
The index is a smalltalk index (i.e. 1-based). |
|
945 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
946 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
947 |
||
948 |
|bIdx "{ Class: SmallInteger }" |
|
949 |
delta "{ Class: SmallInteger }"| |
|
950 |
||
951 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
952 |
^ self elementBoundsError:anInteger |
3459 | 953 |
]. |
954 |
||
955 |
msb ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
956 |
bIdx := index + 7. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
957 |
delta := -1 |
3459 | 958 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
959 |
bIdx := index. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
960 |
delta := 1 |
3459 | 961 |
]. |
962 |
1 to:8 do:[:i | |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
963 |
self basicAt:bIdx put:(anInteger digitAt:i). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
964 |
bIdx := bIdx + delta. |
3459 | 965 |
]. |
966 |
^ anInteger |
|
967 |
||
968 |
" |
|
969 |
|b| |
|
970 |
b := ByteArray new:8. |
|
971 |
b quadWordAtIndex:1 put:16r0807060504030201 MSB:false. |
|
972 |
b inspect |
|
973 |
" |
|
974 |
! |
|
975 |
||
976 |
unsignedLongLongAt:index bigEndian:msb |
|
977 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
978 |
The index is a smalltalk index (i.e. 1-based). |
|
979 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
980 |
||
981 |
|l |
|
982 |
bIdx "{ Class: SmallInteger }" |
|
983 |
delta "{ Class: SmallInteger }"| |
|
984 |
||
985 |
l := LargeInteger basicNew numberOfDigits:8. |
|
986 |
msb ifTrue:[ |
|
4308 | 987 |
bIdx := index + 7. |
988 |
delta := -1 |
|
3459 | 989 |
] ifFalse:[ |
4308 | 990 |
bIdx := index. |
991 |
delta := 1 |
|
3459 | 992 |
]. |
993 |
1 to:8 do:[:i | |
|
4308 | 994 |
l digitAt:i put:(self basicAt:bIdx). |
995 |
bIdx := bIdx + delta |
|
3459 | 996 |
]. |
997 |
^ l compressed |
|
998 |
||
999 |
" |
|
1000 |
|b| |
|
1001 |
||
1002 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
1003 |
(b unsignedLongLongAt:1 bigEndian:false) printStringRadix:16 |
|
1004 |
" |
|
1005 |
||
1006 |
"Modified: / 5.11.1996 / 14:06:21 / cg" |
|
1007 |
"Modified: / 5.3.1998 / 14:04:44 / stefan" |
|
1008 |
! |
|
1009 |
||
1010 |
unsignedLongLongAt:index put:anInteger |
|
1011 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
1012 |
The index is a smalltalk index (i.e. 1-based). |
|
1013 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
1014 |
The value is stored in natural byte order." |
|
1015 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1016 |
^ self unsignedLongLongAt:index put:anInteger bigEndian:(UninterpretedBytes isBigEndian) |
3459 | 1017 |
|
1018 |
"Created: / 5.3.1998 / 14:44:00 / stefan" |
|
1019 |
"Modified: / 5.3.1998 / 15:02:32 / stefan" |
|
1020 |
! |
|
1021 |
||
1022 |
unsignedLongLongAt:index put:anInteger bigEndian:msb |
|
1023 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
1024 |
The index is a smalltalk index (i.e. 1-based). |
|
1025 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
1026 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
1027 |
||
1028 |
|bIdx "{ Class: SmallInteger }" |
|
1029 |
delta "{ Class: SmallInteger }"| |
|
1030 |
||
1031 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1032 |
^ self elementBoundsError:anInteger |
3459 | 1033 |
]. |
1034 |
||
1035 |
msb ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1036 |
bIdx := index + 7. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1037 |
delta := -1 |
3459 | 1038 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1039 |
bIdx := index. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1040 |
delta := 1 |
3459 | 1041 |
]. |
1042 |
1 to:8 do:[:i | |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1043 |
self basicAt:bIdx put:(anInteger digitAt:i). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1044 |
bIdx := bIdx + delta. |
3459 | 1045 |
]. |
1046 |
^ anInteger |
|
1047 |
||
1048 |
" |
|
1049 |
|b| |
|
1050 |
b := ByteArray new:8. |
|
1051 |
b unsignedLongLongAt:1 put:16r0807060504030201 bigEndian:false. |
|
1052 |
b inspect |
|
1053 |
" |
|
1054 |
||
1055 |
"Created: / 5.3.1998 / 14:06:02 / stefan" |
|
1056 |
! ! |
|
1057 |
||
1058 |
!UninterpretedBytes methodsFor:'accessing-longs'! |
|
1059 |
||
1060 |
doubleWordAt:index |
|
1061 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
1062 |
The index is a smalltalk index (i.e. 1-based). |
|
4515 | 1063 |
The value is retrieved in the machines natural byte order." |
3459 | 1064 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1065 |
^ self doubleWordAt:index MSB:(UninterpretedBytes isBigEndian) |
3459 | 1066 |
|
1067 |
" |
|
1068 |
|b| |
|
1069 |
||
1070 |
b := ByteArray withAll:#(1 2 3 4). |
|
1071 |
(b doubleWordAt:1) printStringRadix:16 |
|
1072 |
" |
|
1073 |
||
1074 |
"Modified: / 5.3.1998 / 14:57:35 / stefan" |
|
1075 |
! |
|
1076 |
||
1077 |
doubleWordAt:index MSB:msb |
|
1078 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
1079 |
The index is a smalltalk index (i.e. 1-based). |
|
1080 |
The value is retrieved MSB-first, if the msb-arg is true; |
|
4515 | 1081 |
LSB-first otherwise." |
3459 | 1082 |
|
1083 |
|val |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1084 |
ival "{ Class: SmallInteger }" |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1085 |
t "{ Class: SmallInteger }" |
3459 | 1086 |
i "{ Class: SmallInteger }" |
1087 |
b1 "{ Class: SmallInteger }" |
|
1088 |
b2 "{ Class: SmallInteger }" |
|
1089 |
b3 "{ Class: SmallInteger }" |
|
1090 |
b4 "{ Class: SmallInteger }"| |
|
1091 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1092 |
%{ |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1093 |
/* |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1094 |
* handle the most common cases fast ... |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1095 |
*/ |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1096 |
if (__isSmallInteger(index)) { |
4515 | 1097 |
unsigned char *cp; |
1098 |
int sz; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1099 |
|
4515 | 1100 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1101 |
if (cp) { |
|
1102 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
1103 |
unsigned int iVal; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1104 |
|
4515 | 1105 |
if ((idx+(sizeof(int)-1)) < sz) { |
1106 |
cp += idx; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1107 |
|
4515 | 1108 |
if (msb == true) { |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1109 |
#if defined(__MSBFIRST__) |
4515 | 1110 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
1111 |
/* |
|
1112 |
* aligned |
|
1113 |
*/ |
|
1114 |
iVal = ((unsigned int *)cp)[0]; |
|
1115 |
} else |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1116 |
#endif |
4515 | 1117 |
{ |
1118 |
iVal = cp[0]; |
|
1119 |
iVal = (iVal << 8) | cp[1]; |
|
1120 |
iVal = (iVal << 8) | cp[2]; |
|
1121 |
iVal = (iVal << 8) | cp[3]; |
|
1122 |
} |
|
1123 |
} else { |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1124 |
#if defined(__i386__) || (defined(UNALIGNED_FETCH_OK) && defined(__LSBFIRST__)) |
4515 | 1125 |
/* |
1126 |
* aligned or not - we dont care |
|
1127 |
* (i386 can fetch unaligned) |
|
1128 |
*/ |
|
1129 |
iVal = ((unsigned int *)cp)[0]; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1130 |
#else |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1131 |
# if defined(__LSBFIRST__) |
4515 | 1132 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
1133 |
/* |
|
1134 |
* aligned |
|
1135 |
*/ |
|
1136 |
iVal = ((unsigned int *)cp)[0]; |
|
1137 |
} else |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1138 |
# endif |
4515 | 1139 |
{ |
1140 |
iVal = cp[3]; |
|
1141 |
iVal = (iVal << 8) | cp[2]; |
|
1142 |
iVal = (iVal << 8) | cp[1]; |
|
1143 |
iVal = (iVal << 8) | cp[0]; |
|
1144 |
} |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1145 |
#endif |
4515 | 1146 |
} |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1147 |
#if __POINTER_SIZE__ == 8 |
8913 | 1148 |
RETURN (__mkSmallInteger(iVal)); |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1149 |
#else |
4515 | 1150 |
RETURN (__MKUINT(iVal)); |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1151 |
#endif |
4515 | 1152 |
} |
1153 |
} |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1154 |
} |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1155 |
%}. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1156 |
|
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1157 |
"/ fallBack code - non ByteArray-like receiver |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1158 |
"/ or funny index |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1159 |
|
3459 | 1160 |
i := index. |
1161 |
b1 := self at:i. |
|
1162 |
b2 := self at:(i+1). |
|
1163 |
b3 := self at:(i+2). |
|
1164 |
b4 := self at:(i+3). |
|
1165 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1166 |
msb ifFalse:[ |
4515 | 1167 |
t := b4. b4 := b1. b1 := t. |
1168 |
t := b3. b3 := b2. b2 := t. |
|
3459 | 1169 |
]. |
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1170 |
ival := b1. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1171 |
ival := (ival bitShift:8) + b2. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1172 |
ival := (ival bitShift:8) + b3. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1173 |
val := (ival bitShift:8) + b4. |
3459 | 1174 |
^ val |
1175 |
||
1176 |
" |
|
1177 |
|b| |
|
1178 |
||
1179 |
b := ByteArray withAll:#(1 2 3 4). |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1180 |
(b doubleWordAt:1 MSB:true) printStringRadix:16. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1181 |
(b doubleWordAt:1 MSB:false) printStringRadix:16 |
3459 | 1182 |
" |
1183 |
||
1184 |
! |
|
1185 |
||
1186 |
doubleWordAt:index put:value |
|
1187 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
1188 |
The index is a smalltalk index (i.e. 1-based). |
|
1189 |
The value should be in the range 0 to 16rFFFFFFFF |
|
1190 |
(for negative values, the stored value is not defined). |
|
4515 | 1191 |
The value is stored in the machines natural byte order." |
3459 | 1192 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1193 |
^ self doubleWordAt:index put:value MSB:(UninterpretedBytes isBigEndian) |
3459 | 1194 |
|
1195 |
" |
|
1196 |
|b| |
|
1197 |
b := ByteArray new:4. |
|
1198 |
b doubleWordAt:1 put:16r04030201. |
|
1199 |
b inspect |
|
1200 |
" |
|
1201 |
||
1202 |
"Modified: / 5.3.1998 / 14:57:48 / stefan" |
|
1203 |
! |
|
1204 |
||
1205 |
doubleWordAt:index put:aNumber MSB:msb |
|
1206 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
1207 |
The index is a smalltalk index (i.e. 1-based). |
|
1208 |
The value must be in the range 0 to 16rFFFFFFFF. |
|
4515 | 1209 |
The value is stored MSB-first if msb is true; LSB-first otherwise." |
3459 | 1210 |
|
1211 |
|i "{ Class: SmallInteger }" | |
|
1212 |
||
1213 |
((aNumber < 0) or:[aNumber > 16rFFFFFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1214 |
^ self elementBoundsError:aNumber |
3459 | 1215 |
]. |
1216 |
||
1217 |
i := index. |
|
1218 |
msb ifTrue:[ |
|
4515 | 1219 |
self at:i put:(aNumber digitAt:4). |
1220 |
self at:(i+1) put:(aNumber digitAt:3). |
|
1221 |
self at:(i+2) put:(aNumber digitAt:2). |
|
1222 |
self at:(i+3) put:(aNumber digitAt:1). |
|
3459 | 1223 |
] ifFalse:[ |
4515 | 1224 |
self at:i put:(aNumber digitAt:1). |
1225 |
self at:(i+1) put:(aNumber digitAt:2). |
|
1226 |
self at:(i+2) put:(aNumber digitAt:3). |
|
1227 |
self at:(i+3) put:(aNumber digitAt:4). |
|
3459 | 1228 |
]. |
1229 |
^ aNumber |
|
1230 |
||
1231 |
" |
|
1232 |
|b| |
|
1233 |
b := ByteArray new:8. |
|
1234 |
b doubleWordAt:1 put:16r04030201 MSB:true. |
|
1235 |
b doubleWordAt:5 put:16r04030201 MSB:false. |
|
1236 |
b inspect |
|
1237 |
" |
|
1238 |
||
1239 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1240 |
"Modified: / 5.3.1998 / 11:42:17 / stefan" |
|
1241 |
! |
|
1242 |
||
1243 |
doubleWordAtDoubleWordIndex:index |
|
1244 |
"return the unsigned long at index, anInteger. |
|
1245 |
Fetching in the machines natural byte order. |
|
1246 |
Indices are 1-based and scaled as appropriate to allow |
|
1247 |
accessing the memory as an array of doubleWord entries. |
|
1248 |
(i.e. indices are 1, 2, ...)" |
|
1249 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1250 |
^ self doubleWordAtDoubleWordIndex:index MSB:(UninterpretedBytes isBigEndian) |
3459 | 1251 |
|
1252 |
"Created: / 21.1.1998 / 17:43:53 / cg" |
|
1253 |
"Modified: / 5.3.1998 / 14:58:06 / stefan" |
|
1254 |
! |
|
1255 |
||
1256 |
doubleWordAtDoubleWordIndex:index MSB:msb |
|
1257 |
"return the unsigned long at index, anInteger. |
|
1258 |
Fetching is MSB if msb is true, LSB otherwise. |
|
1259 |
Indices are 1-based and scaled as appropriate to allow |
|
1260 |
accessing the memory as an array of doubleWord entries. |
|
1261 |
(i.e. indices are 1, 2, ...)" |
|
1262 |
||
1263 |
^ self doubleWordAt:(index - 1 * 4 + 1) MSB:msb |
|
1264 |
||
1265 |
"Created: / 21.1.1998 / 17:44:07 / cg" |
|
1266 |
! |
|
1267 |
||
1268 |
doubleWordAtDoubleWordIndex:index put:value |
|
1269 |
"set the long at index, anInteger. |
|
1270 |
Storing in the machines natural byte order. |
|
1271 |
Indices are 1-based and scaled as appropriate to allow |
|
1272 |
accessing the memory as an array of doubleWord entries. |
|
1273 |
(i.e. indices are 1, 2, ...)" |
|
1274 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1275 |
^ self doubleWordAtDoubleWordIndex:index put:value MSB:(UninterpretedBytes isBigEndian) |
3459 | 1276 |
|
1277 |
"Created: / 21.1.1998 / 17:44:13 / cg" |
|
1278 |
"Modified: / 5.3.1998 / 14:58:19 / stefan" |
|
1279 |
! |
|
1280 |
||
1281 |
doubleWordAtDoubleWordIndex:index put:value MSB:msb |
|
1282 |
"set the long at index, anInteger. |
|
1283 |
Storing is MSB if msb is true, LSB otherwise. |
|
1284 |
Indices are 1-based and scaled as appropriate to allow |
|
1285 |
accessing the memory as an array of doubleWord entries. |
|
1286 |
(i.e. indices are 1, 2, ...)" |
|
1287 |
||
1288 |
^ self doubleWordAt:(index - 1 * 4 + 1) put:value MSB:msb |
|
1289 |
||
1290 |
"Created: / 21.1.1998 / 17:44:19 / cg" |
|
3323 | 1291 |
! |
1292 |
||
1293 |
longAt:index |
|
1294 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1295 |
The index is a smalltalk index (i.e. 1-based). |
4308 | 1296 |
The value is retrieved in the machines natural byte order, |
1297 |
therefore, this should only be used for byte-data which is |
|
1298 |
only used inside this machine. |
|
1299 |
To setup data packets which are to be sent to other machines, |
|
1300 |
or stored into a file, always use longAt:MSB: and specify |
|
1301 |
a definite byteOrder." |
|
3323 | 1302 |
|
1303 |
|w| |
|
1304 |
||
3434 | 1305 |
%{ |
1306 |
/* |
|
1307 |
* handle the most common cases fast ... |
|
1308 |
*/ |
|
1309 |
if (__isSmallInteger(index)) { |
|
4308 | 1310 |
unsigned char *cp; |
1311 |
int sz; |
|
3434 | 1312 |
|
4308 | 1313 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1314 |
if (cp) { |
|
1315 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 1316 |
|
4308 | 1317 |
if ((idx+(sizeof(int)-1)) < sz) { |
1318 |
cp += idx; |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1319 |
#if defined(__i386__) |
4308 | 1320 |
/* |
1321 |
* aligned or not, we dont care (i386 can do both) |
|
1322 |
*/ |
|
1323 |
{ |
|
1324 |
int iVal = ((int *)cp)[0]; |
|
3434 | 1325 |
|
4308 | 1326 |
RETURN (__MKINT(iVal)); |
1327 |
} |
|
1328 |
#else |
|
1329 |
/* |
|
1330 |
* aligned |
|
1331 |
*/ |
|
1332 |
if (((INT)cp & (sizeof(int)-1)) == 0) { |
|
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1333 |
int iVal = ((int *)cp)[0]; |
4308 | 1334 |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1335 |
# if __POINTER_SIZE__ == 8 |
8913 | 1336 |
RETURN (__mkSmallInteger(iVal)); |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1337 |
# else |
4308 | 1338 |
RETURN (__MKINT(iVal)); |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1339 |
# endif |
4308 | 1340 |
} |
1341 |
#endif |
|
1342 |
} |
|
1343 |
} |
|
3434 | 1344 |
} |
1345 |
%}. |
|
1346 |
||
3323 | 1347 |
w := self unsignedLongAt:index. |
1348 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
4308 | 1349 |
^ w - (16r100000000) |
3323 | 1350 |
]. |
1351 |
^ w |
|
1352 |
||
1353 |
" |
|
1354 |
|b| |
|
1355 |
b := ByteArray new:4. |
|
1356 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1357 |
(b longAt:1) |
|
1358 |
" |
|
1359 |
||
1360 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
1361 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
1362 |
! |
|
1363 |
||
1364 |
longAt:index bigEndian:msb |
|
1365 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1366 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1367 |
Depending on msb, the value is retrieved MSB-first or LSB-first. |
1368 |
This may be worth a primitive." |
|
1369 |
||
1370 |
|w| |
|
1371 |
||
1372 |
w := self unsignedLongAt:index bigEndian:msb. |
|
1373 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
4308 | 1374 |
^ w - (16r100000000) |
3323 | 1375 |
]. |
1376 |
^ w |
|
1377 |
||
1378 |
" |
|
1379 |
|b| |
|
1380 |
b := ByteArray new:4. |
|
1381 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1382 |
(b longAt:1) |
|
1383 |
" |
|
1384 |
||
1385 |
"Modified: / 1.7.1996 / 21:11:33 / cg" |
|
1386 |
"Created: / 5.3.1998 / 14:02:03 / stefan" |
|
1387 |
! |
|
1388 |
||
1389 |
longAt:index put:value |
|
1390 |
"set the 4-bytes starting at index from the signed Integer value. |
|
3433 | 1391 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1392 |
The value is stored in the machines natural byte order. |
1393 |
This may be worth a primitive. |
|
1394 |
||
1395 |
This is the ST80 version of #signedDoubleWordAt:put:" |
|
1396 |
||
1397 |
|v| |
|
1398 |
||
3434 | 1399 |
%{ |
1400 |
/* |
|
1401 |
* handle the most common cases fast ... |
|
1402 |
*/ |
|
1403 |
if (__isSmallInteger(index)) { |
|
4308 | 1404 |
unsigned char *cp; |
1405 |
int sz; |
|
3434 | 1406 |
|
4308 | 1407 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1408 |
if (cp) { |
|
1409 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 1410 |
|
4308 | 1411 |
if ((idx+(sizeof(int)-1)) < sz) { |
1412 |
cp += idx; |
|
1413 |
/* |
|
1414 |
* aligned |
|
1415 |
*/ |
|
1416 |
if (((INT)cp & (sizeof(int)-1)) == 0) { |
|
3434 | 1417 |
int __v; |
1418 |
||
4308 | 1419 |
if (__isSmallInteger(value)) { |
1420 |
((int *)cp)[0] = __intVal(value); |
|
1421 |
RETURN (value); |
|
3434 | 1422 |
} |
1423 |
if (__v = __signedLongIntVal(value)) { |
|
1424 |
((int *)cp)[0] = __v; |
|
1425 |
RETURN (value); |
|
1426 |
} |
|
4308 | 1427 |
} |
1428 |
} |
|
1429 |
} |
|
3434 | 1430 |
} |
1431 |
%}. |
|
1432 |
||
3323 | 1433 |
value >= 0 ifTrue:[ |
4308 | 1434 |
v := value |
3323 | 1435 |
] ifFalse:[ |
4308 | 1436 |
v := value + 16r100000000 |
3323 | 1437 |
]. |
1438 |
self unsignedLongAt:index put:v. |
|
1439 |
^ value |
|
1440 |
||
1441 |
" |
|
1442 |
|b| |
|
1443 |
b := ByteArray new:4. |
|
1444 |
b longAt:1 put:-1. |
|
1445 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1446 |
" |
|
1447 |
||
1448 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1449 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1450 |
! |
|
1451 |
||
3444 | 1452 |
longAt:byteIndex put:anInteger bigEndian:msb |
1453 |
"store a signed long (32bit) integer. |
|
1454 |
The index is a smalltalk index (i.e. 1-based). |
|
1455 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
1456 |
||
1457 |
|v| |
|
1458 |
||
1459 |
v := anInteger. |
|
1460 |
anInteger < 0 ifTrue:[ |
|
4308 | 1461 |
v := v + 16r100000000 |
3444 | 1462 |
]. |
1463 |
^ self unsignedLongAt:byteIndex put:v bigEndian:msb |
|
1464 |
||
1465 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
1466 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
1467 |
! |
|
1468 |
||
11850 | 1469 |
pointerAt:index |
1470 |
"get a pointer starting at index as ExternalAddress. |
|
1471 |
The index is a smalltalk index (i.e. 1-based). |
|
1472 |
Only aligned accesses are allowed." |
|
1473 |
||
1474 |
%{ |
|
1475 |
OBJ *pointer; |
|
1476 |
||
1477 |
if (__isSmallInteger(index)) { |
|
1478 |
unsigned char *cp; |
|
1479 |
int sz; |
|
1480 |
||
1481 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1482 |
if (cp) { |
|
1483 |
unsigned INT idx = ((unsigned INT)__smallIntegerVal(index)) - 1; |
|
1484 |
||
1485 |
if ((idx+(sizeof(pointer)-1)) < sz) { |
|
1486 |
cp += idx; |
|
1487 |
/* |
|
1488 |
* aligned |
|
1489 |
*/ |
|
1490 |
if (((INT)cp & (sizeof(pointer)-1)) == 0) { |
|
1491 |
pointer = ((char **)cp)[0]; |
|
1492 |
RETURN (__MKEXTERNALADDRESS(pointer)); |
|
1493 |
} |
|
1494 |
} |
|
1495 |
} |
|
1496 |
} |
|
1497 |
bad:; |
|
1498 |
%}. |
|
1499 |
||
1500 |
self primitiveFailed. |
|
1501 |
||
1502 |
" |
|
1503 |
|b| |
|
1504 |
b := ByteArray new:(ExternalAddress pointerSize). |
|
1505 |
b pointerAt:1 put:(ExternalAddress newAddress:16r12345678). |
|
1506 |
Transcript showCR:((b unsignedLongAt:1) printStringRadix:16). |
|
1507 |
Transcript showCR:((b pointerAt:1)). |
|
1508 |
" |
|
1509 |
! |
|
1510 |
||
6492 | 1511 |
pointerAt:index put:value |
1512 |
"set the pointer starting at index from the signed Integer value. |
|
1513 |
The index is a smalltalk index (i.e. 1-based). |
|
1514 |
Only aligned accesses are allowed. |
|
1515 |
The value is either an ExternalAddress or ExternalBytes" |
|
1516 |
||
1517 |
%{ |
|
1518 |
OBJ *pointer; |
|
1519 |
||
7814
c649ba9fd538
#pointerAt:put: now works for ExternalAddressLike objects
Stefan Vogel <sv@exept.de>
parents:
7813
diff
changeset
|
1520 |
if (__isExternalAddressLike(value)) { |
6492 | 1521 |
pointer = __externalAddressVal(value); |
7197
a68adb223592
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
7193
diff
changeset
|
1522 |
} else if (__isExternalBytesLike(value)) { |
6492 | 1523 |
pointer = __externalBytesVal(value); |
6885 | 1524 |
if (pointer == (OBJ *)0) |
6492 | 1525 |
pointer = 0; |
11852 | 1526 |
} else if (value == nil) { |
1527 |
pointer = 0; |
|
6492 | 1528 |
} else goto bad; |
1529 |
||
1530 |
if (__isSmallInteger(index)) { |
|
1531 |
unsigned char *cp; |
|
1532 |
int sz; |
|
1533 |
||
1534 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1535 |
if (cp) { |
|
1536 |
unsigned INT idx = ((unsigned INT)__smallIntegerVal(index)) - 1; |
|
1537 |
||
1538 |
if ((idx+(sizeof(pointer)-1)) < sz) { |
|
1539 |
cp += idx; |
|
1540 |
/* |
|
1541 |
* aligned |
|
1542 |
*/ |
|
1543 |
if (((INT)cp & (sizeof(pointer)-1)) == 0) { |
|
1544 |
((char **)cp)[0] = (char *) pointer; |
|
1545 |
RETURN (value); |
|
1546 |
} |
|
1547 |
} |
|
1548 |
} |
|
1549 |
} |
|
1550 |
bad:; |
|
1551 |
%}. |
|
1552 |
||
1553 |
self primitiveFailed. |
|
1554 |
||
1555 |
" |
|
1556 |
|b| |
|
1557 |
b := ByteArray new:ExternalAddress pointerSize. |
|
1558 |
b pointerAt:1 put:(ExternalAddress newAddress:16r12345678). |
|
1559 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1560 |
" |
|
1561 |
||
1562 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1563 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1564 |
! |
|
1565 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1566 |
signedDoubleWordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1567 |
"return the 4-bytes starting at index as a signed Integer. |
3433 | 1568 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1569 |
The value is retrieved in the machines natural byte order. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1570 |
This may be worth a primitive." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1571 |
|
4515 | 1572 |
^ self signedDoubleWordAt:index MSB:(UninterpretedBytes isBigEndian) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1573 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1574 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1575 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1576 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1577 |
b doubleWordAt:1 put:16rFFFFFFFF. |
4515 | 1578 |
(b signedDoubleWordAt:1) |
1579 |
" |
|
1580 |
" |
|
1581 |
|b| |
|
1582 |
b := ByteArray new:4. |
|
1583 |
b signedDoubleWordAt:1 put:-1. |
|
1584 |
(b doubleWordAt:1) |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1585 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1586 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1587 |
"Modified: 1.7.1996 / 21:11:28 / cg" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1588 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1589 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1590 |
signedDoubleWordAt:index MSB:msb |
4515 | 1591 |
"return the 4-bytes starting at index as a (signed) Integer. |
3433 | 1592 |
The index is a smalltalk index (i.e. 1-based). |
4515 | 1593 |
The value is retrieved MSB-first, if the msb-arg is true; |
1594 |
LSB-first otherwise." |
|
1595 |
||
1596 |
|val |
|
1597 |
ival "{ Class: SmallInteger }" |
|
1598 |
t "{ Class: SmallInteger }" |
|
1599 |
i "{ Class: SmallInteger }" |
|
1600 |
b1 "{ Class: SmallInteger }" |
|
1601 |
b2 "{ Class: SmallInteger }" |
|
1602 |
b3 "{ Class: SmallInteger }" |
|
1603 |
b4 "{ Class: SmallInteger }"| |
|
1604 |
||
1605 |
%{ |
|
1606 |
/* |
|
1607 |
* handle the most common cases fast ... |
|
1608 |
*/ |
|
1609 |
if (__isSmallInteger(index)) { |
|
1610 |
unsigned char *cp; |
|
1611 |
int sz; |
|
1612 |
||
1613 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1614 |
if (cp) { |
|
1615 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
1616 |
int iVal; |
|
1617 |
||
1618 |
if ((idx+(sizeof(int)-1)) < sz) { |
|
1619 |
cp += idx; |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1620 |
|
4515 | 1621 |
if (msb == true) { |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1622 |
#if defined(__MSBFIRST__) |
4515 | 1623 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
1624 |
/* |
|
1625 |
* aligned |
|
1626 |
*/ |
|
1627 |
iVal = ((int *)cp)[0]; |
|
1628 |
} else |
|
1629 |
#endif |
|
1630 |
{ |
|
1631 |
iVal = cp[0]; |
|
1632 |
iVal = (iVal << 8) | cp[1]; |
|
1633 |
iVal = (iVal << 8) | cp[2]; |
|
1634 |
iVal = (iVal << 8) | cp[3]; |
|
1635 |
} |
|
1636 |
} else { |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1637 |
#if defined(__i386__) || (defined(UNALIGNED_FETCH_OK) && defined(__LSBFIRST__)) |
4515 | 1638 |
/* |
1639 |
* aligned or not - we dont care |
|
1640 |
* (i386 can fetch unaligned) |
|
1641 |
*/ |
|
1642 |
iVal = ((int *)cp)[0]; |
|
1643 |
#else |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1644 |
# if defined(__LSBFIRST__) |
4515 | 1645 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
1646 |
/* |
|
1647 |
* aligned |
|
1648 |
*/ |
|
1649 |
iVal = ((int *)cp)[0]; |
|
1650 |
} else |
|
1651 |
# endif |
|
1652 |
{ |
|
1653 |
iVal = cp[3]; |
|
1654 |
iVal = (iVal << 8) | cp[2]; |
|
1655 |
iVal = (iVal << 8) | cp[1]; |
|
1656 |
iVal = (iVal << 8) | cp[0]; |
|
1657 |
} |
|
1658 |
#endif |
|
1659 |
} |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8893
diff
changeset
|
1660 |
#if __POINTER_SIZE__ == 8 |
8913 | 1661 |
RETURN (__mkSmallInteger(iVal)); |
4515 | 1662 |
#else |
1663 |
RETURN (__MKINT(iVal)); |
|
1664 |
#endif |
|
1665 |
} |
|
1666 |
} |
|
1667 |
} |
|
1668 |
%}. |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1669 |
|
4515 | 1670 |
"/ fallBack code - non ByteArray-like receiver |
1671 |
"/ or funny index |
|
1672 |
||
1673 |
i := index. |
|
1674 |
b1 := self at:i. |
|
1675 |
b2 := self at:(i+1). |
|
1676 |
b3 := self at:(i+2). |
|
1677 |
b4 := self at:(i+3). |
|
1678 |
||
1679 |
msb ifFalse:[ |
|
1680 |
t := b4. b4 := b1. b1 := t. |
|
1681 |
t := b3. b3 := b2. b2 := t. |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1682 |
]. |
4515 | 1683 |
ival := b1. |
1684 |
ival := (ival bitShift:8) + b2. |
|
1685 |
ival := (ival bitShift:8) + b3. |
|
1686 |
val := (ival bitShift:8) + b4. |
|
1687 |
||
1688 |
(val > (16r7FFFFFFF)) ifTrue:[ |
|
1689 |
^ val - (16r100000000) |
|
1690 |
]. |
|
1691 |
^ val |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1692 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1693 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1694 |
|b| |
4515 | 1695 |
|
1696 |
b := ByteArray withAll:#(1 2 3 4). |
|
1697 |
(b signedDoubleWordAt:1 MSB:true) printStringRadix:16. |
|
1698 |
(b signedDoubleWordAt:1 MSB:false) printStringRadix:16 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1699 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1700 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1701 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1702 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1703 |
signedDoubleWordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1704 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1705 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1706 |
The value is stored in the machines natural byte order. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1707 |
This may be worth a primitive." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1708 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1709 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1710 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1711 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1712 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1713 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1714 |
v := value + 16r100000000 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1715 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1716 |
self doubleWordAt:index put:v. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1717 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1718 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1719 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1720 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1721 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1722 |
b signedDoubleWordAt:1 put:-1. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1723 |
(b doubleWordAt:1) printStringRadix:16 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1724 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1725 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1726 |
"Modified: 1.7.1996 / 21:11:39 / cg" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1727 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1728 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1729 |
signedDoubleWordAt:index put:value MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1730 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1731 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1732 |
Depending on msb, the value is stored MSB-first or LSB-first. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1733 |
This may be worth a primitive." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1734 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1735 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1736 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1737 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1738 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1739 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1740 |
v := value + 16r100000000 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1741 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1742 |
self doubleWordAt:index put:v MSB:msb. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1743 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1744 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1745 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1746 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1747 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1748 |
b signedDoubleWordAt:1 put:-1. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1749 |
(b doubleWordAt:1) printStringRadix:16 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1750 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1751 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1752 |
"Modified: 1.7.1996 / 21:11:46 / cg" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1753 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1754 |
|
3323 | 1755 |
unsignedLongAt:index |
1756 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1757 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1758 |
The value is retrieved in the machines natural byte order. |
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1759 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1760 |
Same as doubleWordAt: for protocol completeness" |
3323 | 1761 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1762 |
^ self doubleWordAt:index |
3323 | 1763 |
|
1764 |
" |
|
1765 |
|b| |
|
1766 |
||
1767 |
b := ByteArray withAll:#(1 2 3 4). |
|
1768 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1769 |
" |
|
1770 |
||
1771 |
"Created: / 5.3.1998 / 11:56:53 / stefan" |
|
1772 |
"Modified: / 5.3.1998 / 14:58:48 / stefan" |
|
1773 |
! |
|
1774 |
||
1775 |
unsignedLongAt:index bigEndian:msb |
|
1776 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1777 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1778 |
The value is retrieved MSB-first, if the msb-arg is true; |
1779 |
LSB-first otherwise. |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1780 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1781 |
Same as doubleWordAt:MSB: for protocol completeness" |
3323 | 1782 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1783 |
^ self doubleWordAt:index MSB:msb |
3323 | 1784 |
|
1785 |
" |
|
1786 |
|b| |
|
1787 |
||
1788 |
b := ByteArray withAll:#(1 2 3 4). |
|
1789 |
(b unsignedLongAt:1 bigEndian:true) printStringRadix:16. |
|
1790 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1791 |
" |
|
1792 |
||
1793 |
"Modified: / 21.1.1998 / 17:42:30 / cg" |
|
1794 |
"Created: / 5.3.1998 / 11:46:05 / stefan" |
|
1795 |
! |
|
1796 |
||
1797 |
unsignedLongAt:index put:value |
|
1798 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1799 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1800 |
The value should be in the range 0 to 16rFFFFFFFF |
1801 |
(for negative values, the stored value is not defined). |
|
1802 |
The value is stored in the machines natural byte order. |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1803 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1804 |
Same as doubleWordAt:put: for protocol completeness" |
3323 | 1805 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1806 |
^ self doubleWordAt:index put:value |
3323 | 1807 |
|
1808 |
" |
|
1809 |
|b| |
|
1810 |
b := ByteArray new:4. |
|
1811 |
b unsignedLongAt:1 put:16r04030201. |
|
1812 |
b inspect |
|
1813 |
" |
|
1814 |
||
1815 |
"Created: / 5.3.1998 / 11:57:44 / stefan" |
|
1816 |
"Modified: / 5.3.1998 / 14:58:59 / stefan" |
|
1817 |
! |
|
1818 |
||
1819 |
unsignedLongAt:index put:aNumber bigEndian:msb |
|
1820 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1821 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1822 |
The value must be in the range 0 to 16rFFFFFFFF. |
1823 |
The value is stored MSB-first if msb is true; LSB-first otherwise. |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1824 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1825 |
Same as doubleWordAt:put:MSB: for protocol completeness" |
3323 | 1826 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1827 |
^ self doubleWordAt:index put:aNumber MSB:msb |
3323 | 1828 |
|
1829 |
" |
|
1830 |
|b| |
|
1831 |
b := ByteArray new:8. |
|
1832 |
b unsignedLongAt:1 put:16r04030201 bigEndian:true. |
|
1833 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1834 |
" |
|
1835 |
||
1836 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1837 |
"Created: / 5.3.1998 / 11:43:53 / stefan" |
|
1838 |
"Modified: / 5.3.1998 / 11:47:30 / stefan" |
|
3459 | 1839 |
! ! |
1840 |
||
1841 |
!UninterpretedBytes methodsFor:'accessing-shorts'! |
|
1842 |
||
1843 |
shortAt:index |
|
1844 |
"return the 2-bytes starting at index as a signed Integer. |
|
1845 |
The index is a smalltalk index (i.e. 1-based). |
|
1846 |
The value is retrieved in the machines natural byte order. |
|
1847 |
This may be worth a primitive. |
|
1848 |
This is the ST80 equivalent of #signedWordAt:" |
|
1849 |
||
1850 |
^ (self unsignedShortAt:index) signExtendedShortValue |
|
1851 |
||
1852 |
" |
|
1853 |
|b| |
|
1854 |
b := ByteArray new:2. |
|
1855 |
b unsignedShortAt:1 put:16rFFFF. |
|
1856 |
b shortAt:1 |
|
1857 |
" |
|
1858 |
||
1859 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
|
1860 |
"Created: / 5.3.1998 / 10:59:57 / stefan" |
|
1861 |
"Modified: / 5.3.1998 / 23:39:38 / stefan" |
|
3323 | 1862 |
! |
1863 |
||
3459 | 1864 |
shortAt:index bigEndian:msb |
1865 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1866 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1867 |
The value is retrieved MSB-first, if the msb-arg is true; |
1868 |
LSB-first otherwise. |
|
1869 |
This is the ST80 equivalent of #signedWordAt:" |
|
1870 |
||
1871 |
^ (self unsignedShortAt:index bigEndian:msb) signExtendedShortValue |
|
1872 |
||
1873 |
" |
|
1874 |
|b| |
|
1875 |
b := ByteArray new:2. |
|
1876 |
b unsignedShortAt:1 put:16rFFFF. |
|
1877 |
b shortAt:1 |
|
1878 |
" |
|
3323 | 1879 |
|
3459 | 1880 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
1881 |
"Created: / 5.3.1998 / 23:41:21 / stefan" |
|
1882 |
! |
|
1883 |
||
1884 |
shortAt:index put:value |
|
1885 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1886 |
The index is a smalltalk index (i.e. 1-based). |
|
1887 |
The stored value must be in the range -32768 .. +32676. |
|
1888 |
The value is stored in the machines natural byteorder. |
|
1889 |
This may be worth a primitive. |
|
1890 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1891 |
||
3323 | 1892 |
|
3459 | 1893 |
|v| |
1894 |
||
1895 |
value >= 0 ifTrue:[ |
|
8017 | 1896 |
v := value |
3323 | 1897 |
] ifFalse:[ |
8017 | 1898 |
v := 16r10000 + value |
3323 | 1899 |
]. |
8017 | 1900 |
self unsignedShortAt:index put:v bigEndian:(UninterpretedBytes isBigEndian). |
3459 | 1901 |
^ value |
1902 |
||
1903 |
" |
|
1904 |
|b| |
|
1905 |
b := ByteArray new:6. |
|
1906 |
b shortAt:1 put:-1. |
|
1907 |
b shortAt:3 put:-2. |
|
1908 |
b shortAt:5 put:0. |
|
1909 |
b inspect |
|
1910 |
" |
|
1911 |
||
1912 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
|
1913 |
"Created: / 5.3.1998 / 11:02:05 / stefan" |
|
1914 |
! |
|
1915 |
||
8017 | 1916 |
shortAt:index put:value bigEndian:bigEndian |
1917 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1918 |
The index is a smalltalk index (i.e. 1-based). |
|
1919 |
The stored value must be in the range -32768 .. +32676. |
|
8018 | 1920 |
The value is stored in the byteorder given by bigEndian. |
1921 |
This may be worth a primitive." |
|
8017 | 1922 |
|
1923 |
||
1924 |
|v| |
|
1925 |
||
1926 |
value >= 0 ifTrue:[ |
|
1927 |
v := value |
|
1928 |
] ifFalse:[ |
|
1929 |
v := 16r10000 + value |
|
1930 |
]. |
|
1931 |
self unsignedShortAt:index put:v bigEndian:bigEndian. |
|
1932 |
^ value |
|
1933 |
||
1934 |
" |
|
1935 |
|b| |
|
1936 |
b := ByteArray new:4. |
|
1937 |
b shortAt:1 put:1 bigEndian:true. |
|
1938 |
b shortAt:3 put:1 bigEndian:false. |
|
1939 |
b inspect |
|
1940 |
" |
|
1941 |
||
1942 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
|
1943 |
"Created: / 5.3.1998 / 11:02:05 / stefan" |
|
1944 |
! |
|
1945 |
||
3459 | 1946 |
signedWordAt:index |
1947 |
"return the 2-bytes starting at index as a signed Integer. |
|
1948 |
The index is a smalltalk index (i.e. 1-based). |
|
1949 |
The value is retrieved in the machines natural byte order. |
|
1950 |
This may be worth a primitive." |
|
1951 |
||
1952 |
^ (self wordAt:index) signExtendedShortValue |
|
3323 | 1953 |
|
1954 |
" |
|
1955 |
|b| |
|
3459 | 1956 |
b := ByteArray new:2. |
1957 |
b wordAt:1 put:16rFFFF. |
|
1958 |
b signedWordAt:1 |
|
3323 | 1959 |
" |
1960 |
||
3459 | 1961 |
"Modified: 1.7.1996 / 21:14:38 / cg" |
3323 | 1962 |
! |
1963 |
||
3459 | 1964 |
signedWordAt:index MSB:msb |
1965 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1966 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1967 |
The value is retrieved MSB-first if the msb-arg is true, |
1968 |
LSB-first otherwise. |
|
1969 |
This may be worth a primitive." |
|
3323 | 1970 |
|
3459 | 1971 |
^ (self wordAt:index MSB:msb) signExtendedShortValue |
3323 | 1972 |
|
1973 |
" |
|
1974 |
|b| |
|
3459 | 1975 |
b := ByteArray new:2. |
1976 |
b wordAt:1 put:16r0080. |
|
1977 |
b signedWordAt:1 MSB:true. |
|
1978 |
b signedWordAt:1 MSB:false. |
|
1979 |
" |
|
1980 |
||
1981 |
"Modified: 1.7.1996 / 21:15:57 / cg" |
|
1982 |
! |
|
1983 |
||
1984 |
signedWordAt:index put:value |
|
1985 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1986 |
The index is a smalltalk index (i.e. 1-based). |
|
1987 |
The stored value must be in the range -32768 .. +32676. |
|
1988 |
The value is stored in the machines natural byteorder. |
|
1989 |
This may be worth a primitive. |
|
1990 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1991 |
||
1992 |
||
1993 |
|v| |
|
1994 |
||
1995 |
value >= 0 ifTrue:[ |
|
4308 | 1996 |
v := value |
3459 | 1997 |
] ifFalse:[ |
4308 | 1998 |
v := 16r10000 + value |
3459 | 1999 |
]. |
2000 |
self unsignedShortAt:index put:v. |
|
2001 |
^ value |
|
2002 |
||
2003 |
" |
|
2004 |
|b| |
|
2005 |
b := ByteArray new:6. |
|
2006 |
b shortAt:1 put:-1. |
|
2007 |
b shortAt:3 put:-2. |
|
2008 |
b shortAt:5 put:0. |
|
3323 | 2009 |
b inspect |
2010 |
" |
|
2011 |
||
3459 | 2012 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
2013 |
"Modified: / 5.3.1998 / 11:01:30 / stefan" |
|
2014 |
! |
|
2015 |
||
2016 |
signedWordAt:index put:value MSB:msb |
|
2017 |
"set the 2-bytes starting at index from the signed Integer value. |
|
2018 |
The index is a smalltalk index (i.e. 1-based). |
|
2019 |
The stored value must be in the range -32768 .. +32676. |
|
2020 |
The value is stored MSB-first, if the msb-arg is true; |
|
2021 |
LSB-first otherwise. |
|
2022 |
This may be worth a primitive." |
|
2023 |
||
2024 |
|v| |
|
2025 |
||
2026 |
value >= 0 ifTrue:[ |
|
2027 |
v := value |
|
2028 |
] ifFalse:[ |
|
2029 |
v := 16r10000 + value |
|
2030 |
]. |
|
2031 |
self wordAt:index put:v MSB:msb. |
|
2032 |
^ value |
|
2033 |
||
2034 |
" |
|
2035 |
|b| |
|
2036 |
b := ByteArray new:4. |
|
2037 |
b signedWordAt:1 put:-1. |
|
2038 |
b signedWordAt:3 put:-2. |
|
2039 |
b inspect |
|
2040 |
" |
|
2041 |
||
2042 |
"Modified: 1.7.1996 / 21:12:13 / cg" |
|
3323 | 2043 |
! |
2044 |
||
2045 |
unsignedShortAt:index |
|
2046 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 2047 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 2048 |
The value is retrieved in the machines natural byte order |
2049 |
Subclasses may redefine this for better performance. |
|
2050 |
This is the ST80 equivalent of #wordAt:" |
|
2051 |
||
2052 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
2053 |
^ self unsignedShortAt:index bigEndian:(UninterpretedBytes isBigEndian) |
3323 | 2054 |
|
2055 |
"Created: / 5.3.1998 / 11:38:25 / stefan" |
|
2056 |
"Modified: / 5.3.1998 / 14:59:25 / stefan" |
|
2057 |
! |
|
2058 |
||
2059 |
unsignedShortAt:index bigEndian:msb |
|
2060 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 2061 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 2062 |
The value is retrieved MSB-first (high 8 bits at lower index) if msb is true; |
2063 |
LSB-first (i.e. low 8-bits at lower byte index) if its false)" |
|
2064 |
||
2065 |
|b1 "{ Class: SmallInteger }" |
|
2066 |
b2 "{ Class: SmallInteger }"| |
|
2067 |
||
2068 |
b1 := self at:index. |
|
2069 |
b2 := self at:(index + 1). |
|
2070 |
msb ifTrue:[ |
|
4308 | 2071 |
^ (b1 bitShift:8) + b2 |
3323 | 2072 |
]. |
2073 |
^ (b2 bitShift:8) + b1 |
|
2074 |
||
2075 |
"Modified: / 21.1.1998 / 17:46:07 / cg" |
|
2076 |
"Created: / 5.3.1998 / 11:49:29 / stefan" |
|
2077 |
! |
|
2078 |
||
2079 |
unsignedShortAt:index put:value |
|
2080 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 2081 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 2082 |
The stored value must be in the range 0 .. 16rFFFF. |
2083 |
The value is stored in the machines natural byteorder." |
|
2084 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
2085 |
^ self unsignedShortAt:index put:value bigEndian:(UninterpretedBytes isBigEndian) |
3323 | 2086 |
|
2087 |
" |
|
2088 |
|b| |
|
2089 |
b := ByteArray new:4. |
|
2090 |
b unsignedShortAt:1 put:16r0102. |
|
2091 |
b unsignedShortAt:3 put:16r0304. |
|
2092 |
b inspect |
|
2093 |
" |
|
2094 |
||
2095 |
"Created: / 5.3.1998 / 11:54:52 / stefan" |
|
2096 |
"Modified: / 5.3.1998 / 14:59:38 / stefan" |
|
2097 |
! |
|
2098 |
||
2099 |
unsignedShortAt:index put:value bigEndian:msb |
|
2100 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 2101 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 2102 |
The stored value must be in the range 0 .. 16rFFFF. |
2103 |
The value is stored LSB-first (i.e. the low 8bits are stored at the |
|
2104 |
lower index) if msb is false, MSB-first otherwise" |
|
2105 |
||
2106 |
|b1 b2 |
|
2107 |
iVal "{ Class: SmallInteger }"| |
|
2108 |
||
2109 |
iVal := value. |
|
2110 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2111 |
^ self elementBoundsError:iVal |
3323 | 2112 |
]. |
2113 |
msb ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2114 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2115 |
b2 := (iVal bitAnd:16rFF). |
3323 | 2116 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2117 |
b1 := (iVal bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2118 |
b2 := ((iVal bitShift:-8) bitAnd:16rFF). |
3323 | 2119 |
]. |
2120 |
self at:index put:b1. |
|
2121 |
self at:index+1 put:b2. |
|
2122 |
^ value |
|
2123 |
||
2124 |
" |
|
2125 |
|b| |
|
2126 |
b := ByteArray new:8. |
|
2127 |
b unsignedShortAt:1 put:16r0102 bigEndian:false. |
|
2128 |
b unsignedShortAt:3 put:16r0304 bigEndian:false. |
|
2129 |
b unsignedShortAt:5 put:16r0102 bigEndian:true. |
|
2130 |
b unsignedShortAt:7 put:16r0304 bigEndian:true. |
|
2131 |
b inspect |
|
2132 |
" |
|
2133 |
||
2134 |
"Modified: / 21.1.1998 / 17:48:15 / cg" |
|
2135 |
"Modified: / 5.3.1998 / 11:52:28 / stefan" |
|
2136 |
! |
|
2137 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2138 |
wordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2139 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 2140 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2141 |
The value is retrieved in the machines natural byte order |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2142 |
Subclasses may redefine this for better performance." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2143 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
2144 |
^ self wordAt:index MSB:(UninterpretedBytes isBigEndian) |
3323 | 2145 |
|
2146 |
"Modified: / 5.3.1998 / 14:59:51 / stefan" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2147 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2148 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2149 |
wordAt:index MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2150 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 2151 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2152 |
The value is retrieved MSB (high 8 bits at lower index) if msb is true; |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2153 |
LSB-first (i.e. low 8-bits at lower byte index) if its false. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2154 |
Question: should it be retrieve signed values ? (see ByteArray>>signedWordAt:)" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2155 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2156 |
|b1 "{ Class: SmallInteger }" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2157 |
b2 "{ Class: SmallInteger }"| |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2158 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2159 |
b1 := self at:index. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2160 |
b2 := self at:(index + 1). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2161 |
msb ifTrue:[ |
4308 | 2162 |
^ (b1 bitShift:8) + b2 |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2163 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2164 |
^ (b2 bitShift:8) + b1 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2165 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2166 |
"Modified: / 21.1.1998 / 17:46:07 / cg" |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2167 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2168 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2169 |
wordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2170 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 2171 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2172 |
The stored value must be in the range 0 .. 16rFFFF. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2173 |
The value is stored in the machines natural byteorder. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2174 |
Question: should it accept signed values ? (see ByteArray>>signedWordAt:put:)" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2175 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
2176 |
^ self wordAt:index put:value MSB:(UninterpretedBytes isBigEndian) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2177 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2178 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2179 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2180 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2181 |
b wordAt:1 put:16r0102. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2182 |
b wordAt:3 put:16r0304. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2183 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2184 |
" |
3323 | 2185 |
|
2186 |
"Modified: / 5.3.1998 / 15:00:03 / stefan" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2187 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2188 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2189 |
wordAt:index put:value MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2190 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 2191 |
The index is a smalltalk index (i.e. 1-based). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2192 |
The stored value must be in the range 0 .. 16rFFFF. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2193 |
The value is stored LSB-first (i.e. the low 8bits are stored at the |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2194 |
lower index) if msb is false, MSB-first otherwise. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2195 |
Question: should it accept signed values ? (see ByteArray>>signedWordAt:put:)" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2196 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2197 |
|b1 b2 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2198 |
iVal "{ Class: SmallInteger }"| |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2199 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2200 |
iVal := value. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2201 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2202 |
^ self elementBoundsError:iVal |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2203 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2204 |
msb ifTrue:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2205 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2206 |
b2 := (iVal bitAnd:16rFF). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2207 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2208 |
b1 := (iVal bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2209 |
b2 := ((iVal bitShift:-8) bitAnd:16rFF). |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2210 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2211 |
self at:index put:b1. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2212 |
self at:index+1 put:b2. |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2213 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2214 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2215 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2216 |
b := ByteArray new:8. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2217 |
b wordAt:1 put:16r0102 MSB:false. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2218 |
b wordAt:3 put:16r0304 MSB:false. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2219 |
b wordAt:5 put:16r0102 MSB:true. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2220 |
b wordAt:7 put:16r0304 MSB:true. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2221 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2222 |
" |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2223 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2224 |
"Modified: / 21.1.1998 / 17:48:15 / cg" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2225 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2226 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2227 |
wordAtWordIndex:index |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2228 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2229 |
Fetching in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2230 |
Indices are 1-based and scaled as appropriate to allow |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2231 |
accessing the memory as an array of word entries. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2232 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2233 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
2234 |
^ self wordAtWordIndex:index MSB:(UninterpretedBytes isBigEndian) |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2235 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2236 |
"Created: / 21.1.1998 / 17:48:26 / cg" |
3323 | 2237 |
"Modified: / 5.3.1998 / 15:00:16 / stefan" |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2238 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2239 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2240 |
wordAtWordIndex:index MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2241 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2242 |
Fetching is MSB if msb is true, LSB otherwise. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2243 |
Indices are 1-based and scaled as appropriate to allow |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2244 |
accessing the memory as an array of word entries. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2245 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2246 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2247 |
^ self wordAt:(index - 1 * 2 + 1) MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2248 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2249 |
"Created: / 21.1.1998 / 17:48:30 / cg" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2250 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2251 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2252 |
wordAtWordIndex:index put:value |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2253 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2254 |
Storing in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2255 |
Indices are 1-based and scaled as appropriate to allow |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2256 |
accessing the memory as an array of word entries. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2257 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2258 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
2259 |
^ self wordAtWordIndex:index put:value MSB:(UninterpretedBytes isBigEndian) |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2260 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2261 |
"Created: / 21.1.1998 / 17:48:34 / cg" |
3323 | 2262 |
"Modified: / 5.3.1998 / 15:00:27 / stefan" |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2263 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2264 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2265 |
wordAtWordIndex:index put:value MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2266 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2267 |
Storing is MSB if msb is true, LSB otherwise. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2268 |
Indices are 1-based and scaled as appropriate to allow |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2269 |
accessing the memory as an array of word entries. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2270 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2271 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2272 |
^ self wordAt:(index - 1 * 2 + 1) put:value MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2273 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2274 |
"Created: / 21.1.1998 / 17:48:38 / cg" |
3459 | 2275 |
! ! |
2276 |
||
2277 |
!UninterpretedBytes methodsFor:'accessing-strings'! |
|
2278 |
||
2279 |
stringAt:index |
|
2280 |
"return a string starting at index up to the 0-byte. |
|
2281 |
The index is a smalltalk index (i.e. 1-based)." |
|
2282 |
||
2283 |
|stream i "{ Class: SmallInteger }" c| |
|
2284 |
||
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2285 |
stream := WriteStream on:(String new:40). |
3459 | 2286 |
i := index. |
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2287 |
[(c := self byteAt:i) ~~ 0] whileTrue:[ |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2288 |
stream nextPut:(Character value:c). |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2289 |
i := i + 1. |
3459 | 2290 |
]. |
2291 |
^ stream contents |
|
2292 |
||
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2293 |
" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2294 |
#[71 72 73 74 75 76 77 0] stringAt:1 |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2295 |
#[71 72 73 74 75 76 77 0] stringAt:2 |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2296 |
'1234567890' stringAt:2 |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2297 |
" |
3459 | 2298 |
! |
2299 |
||
2300 |
stringAt:index put:aString |
|
2301 |
"copy aString to the externalBytes, starting at index up to |
|
7815 | 2302 |
(and including) the 0-byte (which is always written). |
3459 | 2303 |
The index is a smalltalk index (i.e. 1-based)." |
2304 |
||
2305 |
|i "{ Class: SmallInteger }"| |
|
2306 |
||
2307 |
i := index. |
|
2308 |
aString do:[:aChar | |
|
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2309 |
self byteAt:i put:aChar codePoint. |
7815 | 2310 |
i := i + 1. |
3459 | 2311 |
]. |
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2312 |
self byteAt:i put:0. |
3459 | 2313 |
^ aString |
2314 |
||
2315 |
" |
|
2316 |
|bytes| |
|
2317 |
||
2318 |
bytes := ExternalBytes new:10. |
|
2319 |
bytes stringAt:1 put:'hello'. |
|
2320 |
1 to:bytes size do:[:i | |
|
7815 | 2321 |
Transcript showCR:(bytes at:i) |
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2322 |
]. |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2323 |
" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2324 |
|
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2325 |
" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2326 |
(String new:20) stringAt:1 put:'hello'; stringAt:6 put:' world'; yourself |
3459 | 2327 |
" |
2328 |
||
2329 |
"Created: / 21.1.1998 / 17:45:02 / cg" |
|
2330 |
! |
|
2331 |
||
7812 | 2332 |
stringAt:index put:aString size:maxSize |
2333 |
"copy aString to the externalBytes, starting at index up to either maxSize characters, |
|
2334 |
or (and including) the 0-byte, whichever is encountered first. |
|
7815 | 2335 |
The final 0-byte is only written, if the string is shorter than maxSize. |
7812 | 2336 |
The index is a smalltalk index (i.e. 1-based)." |
2337 |
||
2338 |
|remaining "{ Class: SmallInteger }" |
|
2339 |
i "{ Class: SmallInteger }"| |
|
2340 |
||
2341 |
remaining := maxSize. |
|
7816 | 2342 |
remaining <= 0 ifTrue:[^ aString]. |
7812 | 2343 |
|
2344 |
i := index. |
|
2345 |
aString do:[:aChar | |
|
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2346 |
self byteAt:i put:aChar codePoint. |
7812 | 2347 |
i := i + 1. |
2348 |
remaining := remaining - 1. |
|
7815 | 2349 |
remaining <= 0 ifTrue:[^ aString]. |
7812 | 2350 |
]. |
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2351 |
self byteAt:i put:0. |
7812 | 2352 |
^ aString |
2353 |
||
2354 |
" |
|
2355 |
|bytes| |
|
2356 |
||
2357 |
bytes := ExternalBytes new:10. |
|
2358 |
bytes stringAt:1 put:'hello' size:3. |
|
2359 |
1 to:bytes size do:[:i | |
|
2360 |
Transcript showCR:(bytes at:i) |
|
2361 |
] |
|
2362 |
" |
|
2363 |
" |
|
2364 |
|bytes| |
|
2365 |
||
2366 |
bytes := ByteArray new:10 withAll:16rFF. |
|
2367 |
bytes stringAt:1 put:'he' size:3. |
|
2368 |
1 to:bytes size do:[:i | |
|
2369 |
Transcript showCR:(bytes at:i) |
|
2370 |
] |
|
2371 |
" |
|
2372 |
||
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2373 |
" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2374 |
(String new:20) stringAt:1 put:'hello' size:3 ; stringAt:4 put:' world' size:4; yourself |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2375 |
" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2376 |
|
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2377 |
|
7812 | 2378 |
"Created: / 21.1.1998 / 17:45:02 / cg" |
2379 |
! |
|
2380 |
||
3459 | 2381 |
stringAt:index size:maxSize |
2382 |
"return a string starting at index up to maxSize, or a 0-byte. |
|
2383 |
The index is a smalltalk index (i.e. 1-based)." |
|
2384 |
||
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2385 |
|stream c |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2386 |
max "{ Class: SmallInteger }" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2387 |
start "{ Class: SmallInteger }"| |
3459 | 2388 |
|
2389 |
stream := WriteStream on:(String new:maxSize). |
|
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2390 |
start := index. |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2391 |
max := start + maxSize - 1. |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2392 |
|
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2393 |
start to:max do:[:eachIndex| |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2394 |
c := self byteAt:eachIndex. |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2395 |
c == 0 ifTrue:[ |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2396 |
^ stream contents |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2397 |
]. |
10555 | 2398 |
stream nextPut:(Character value:c). |
3459 | 2399 |
]. |
2400 |
^ stream contents |
|
2401 |
||
10676
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2402 |
" |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2403 |
#[71 72 73 74 75 76 77] stringAt:1 size:7 |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2404 |
#[71 72 73 74 75 76 77] stringAt:2 size:6 |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2405 |
'1234567890' stringAt:2 size:6 |
252a445bf47d
#stringAt:* now works on Strings, too
Stefan Vogel <sv@exept.de>
parents:
10675
diff
changeset
|
2406 |
" |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2407 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2408 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2409 |
zeroByteStringAt:index maximumSize:count |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2410 |
"extract a zeroByte-delimited string, given initial index and |
3433 | 2411 |
maximum number of characters (bytes). |
2412 |
The index is a smalltalk index (i.e. 1-based)." |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2413 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2414 |
|bytes idx| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2415 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2416 |
bytes := self copyFrom:index to:(index + count - 1). |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2417 |
idx := bytes indexOf:0. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2418 |
idx ~~ 0 ifTrue:[ bytes := bytes copyTo:idx-1 ]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2419 |
^ bytes asString |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2420 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2421 |
"Created: 9.9.1996 / 15:28:34 / cg" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2422 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2423 |
|
4782 | 2424 |
!UninterpretedBytes methodsFor:'filling & replacing'! |
2425 |
||
2426 |
replaceBytesFrom:start to:stop with:sourceBytes startingAt:sourceIndex |
|
7252
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2427 |
|srcIdx| |
4782 | 2428 |
|
7252
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2429 |
srcIdx := sourceIndex. |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2430 |
start to:stop do:[:dstIdx | |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2431 |
self at:dstIdx put:(sourceBytes at:srcIdx). |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2432 |
srcIdx := srcIdx + 1 |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2433 |
]. |
4782 | 2434 |
! ! |
2435 |
||
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2436 |
!UninterpretedBytes methodsFor:'misc'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2437 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2438 |
swapLongAt:byteIndex |
3433 | 2439 |
"swap the byteOrder of a long. |
2440 |
The index is a smalltalk index (i.e. 1-based)." |
|
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2441 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2442 |
|t| |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2443 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2444 |
t := self byteAt:byteIndex. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2445 |
self byteAt:byteIndex put:(self byteAt:(byteIndex + 3)). |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2446 |
self byteAt:(byteIndex + 3) put:t. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2447 |
t := self byteAt:(byteIndex + 1). |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2448 |
self byteAt:(byteIndex + 1) put:(self byteAt:(byteIndex + 2)). |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2449 |
self byteAt:(byteIndex + 2) put:t |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2450 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2451 |
"Created: / 3.4.1998 / 13:37:01 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2452 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2453 |
|
3323 | 2454 |
!UninterpretedBytes methodsFor:'queries'! |
2455 |
||
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2456 |
defaultElement |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2457 |
^ 0 |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2458 |
! |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2459 |
|
3323 | 2460 |
sizeInBytes |
2461 |
"return the number of 8-bit bytes in the receiver. |
|
2462 |
This is needed since subclasse may redefine #size (TwoByteString)" |
|
2463 |
||
2464 |
^ super size |
|
2465 |
||
2466 |
"Created: / 5.3.1998 / 10:41:13 / stefan" |
|
2467 |
! ! |
|
2468 |
||
8986 | 2469 |
!UninterpretedBytes methodsFor:'testing'! |
2470 |
||
2471 |
isByteCollection |
|
2472 |
"return true, if the receiver has access methods for bytes; |
|
2473 |
true is returned here - the method is redefined from Object." |
|
2474 |
||
2475 |
^ true |
|
9005 | 2476 |
! |
2477 |
||
2478 |
isNonByteCollection |
|
2479 |
"return true, if the receiver is some kind of collection, but not a String, ByteArray etc.; |
|
2480 |
false is returned here - the method is redefined from Collection." |
|
2481 |
||
2482 |
^ false |
|
8986 | 2483 |
! ! |
2484 |
||
11009
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2485 |
!UninterpretedBytes methodsFor:'visiting'! |
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2486 |
|
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2487 |
acceptVisitor:aVisitor with:aParameter |
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2488 |
|
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2489 |
^ aVisitor visitByteArray:self with:aParameter |
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2490 |
! ! |
fb66915c5bb5
changed #acceptVisitor:with: - moved to UninterpretedBytes
Stefan Vogel <sv@exept.de>
parents:
10676
diff
changeset
|
2491 |
|
695 | 2492 |
!UninterpretedBytes class methodsFor:'documentation'! |
2493 |
||
2494 |
version |
|
11973 | 2495 |
^ '$Header: /cvs/stx/stx/libbasic/UninterpretedBytes.st,v 1.72 2009-09-18 10:23:09 sr Exp $' |
695 | 2496 |
! ! |