author | Claus Gittinger <cg@exept.de> |
Fri, 11 Apr 2003 01:08:52 +0200 | |
changeset 7193 | 6cccc65453b6 |
parent 6885 | ee7f2ed913a1 |
child 7197 | a68adb223592 |
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 |
" |
|
12 |
||
6492 | 13 |
"{ Package: 'stx:libbasic' }" |
14 |
||
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merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
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diff
changeset
|
15 |
ArrayedCollection subclass:#UninterpretedBytes |
1266 | 16 |
instanceVariableNames:'' |
3323 | 17 |
classVariableNames:'IsBigEndian' |
1266 | 18 |
poolDictionaries:'' |
3207
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parents:
1294
diff
changeset
|
19 |
category:'Collections-Abstract' |
1 | 20 |
! |
21 |
||
3433 | 22 |
!UninterpretedBytes primitiveDefinitions! |
23 |
%{ |
|
24 |
/* |
|
25 |
* Notice: I am abstract, and my subclasses may be anything. |
|
26 |
* Therefore, the code must always handle the fallback case |
|
27 |
* where the receiver is neither an ExternalBytes nor a ByteArray. |
|
28 |
* (which are, however, the most common) |
|
29 |
* |
|
30 |
* macro to fetch my byte address and size-in-bytes; |
|
31 |
* convenient for inline-C code. |
|
32 |
* (yes, C is bad ...) |
|
33 |
*/ |
|
34 |
#define __fetchBytePointerAndSize__(o, pPtr, pSize) \ |
|
35 |
{\ |
|
36 |
if (__isNonNilObject(o)) { \ |
|
4308 | 37 |
if (__qClass(o) == ByteArray) { \ |
38 |
*(pPtr) = (unsigned char *)__ByteArrayInstPtr(o)->ba_element; \ |
|
3433 | 39 |
*(pSize) = __byteArraySize(o); \ |
40 |
} else if (__qClass(o) == ExternalBytes) { \ |
|
41 |
OBJ __sz__ = __externalBytesSize(o); \ |
|
42 |
if (__isSmallInteger(__sz__)) { \ |
|
43 |
*(pSize) = __intVal(__sz__); \ |
|
4308 | 44 |
*(pPtr) = (unsigned char *)(__externalBytesAddress(o)); \ |
3433 | 45 |
} else { \ |
4308 | 46 |
*(pPtr) = (unsigned char *)0; \ |
3433 | 47 |
} \ |
48 |
} else { \ |
|
4308 | 49 |
*(pPtr) = (unsigned char *)0; \ |
3433 | 50 |
} \ |
51 |
} else { \ |
|
4308 | 52 |
*(pPtr) = (unsigned char *)0; \ |
3433 | 53 |
} \ |
54 |
} |
|
55 |
||
56 |
%} |
|
57 |
! ! |
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58 |
||
68 | 59 |
!UninterpretedBytes class methodsFor:'documentation'! |
1 | 60 |
|
88 | 61 |
copyright |
62 |
" |
|
63 |
COPYRIGHT (c) 1993 by Claus Gittinger |
|
300 | 64 |
All Rights Reserved |
88 | 65 |
|
66 |
This software is furnished under a license and may be used |
|
67 |
only in accordance with the terms of that license and with the |
|
68 |
inclusion of the above copyright notice. This software may not |
|
69 |
be provided or otherwise made available to, or used by, any |
|
70 |
other person. No title to or ownership of the software is |
|
71 |
hereby transferred. |
|
72 |
" |
|
73 |
! |
|
74 |
||
68 | 75 |
documentation |
76 |
" |
|
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merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
1294
diff
changeset
|
77 |
UninterpretedBytes provides the common protocol for byte-storage |
a6e3c98e2a8e
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parents:
1294
diff
changeset
|
78 |
containers; concrete subclasses are |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
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diff
changeset
|
79 |
ByteArray (which store the bytes within the |
4308 | 80 |
Smalltalk object memory) |
3207
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merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
1294
diff
changeset
|
81 |
and |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
1294
diff
changeset
|
82 |
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
|
83 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
84 |
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
|
85 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
86 |
[See also:] |
4308 | 87 |
ByteArray String ExternalBytes |
1294 | 88 |
|
89 |
[author:] |
|
4308 | 90 |
Claus Gittinger |
3433 | 91 |
|
92 |
[Notice:] |
|
93 |
Notice the confusion due to multiple methods with the same |
|
4308 | 94 |
functionality (i.e. 'xxxx:MSB:' vs. 'xxxx:bigEndian:'). |
95 |
The reason is that at the time this class was written, |
|
96 |
ST80 sid not offer protocol to specify the byteOrder, and |
|
97 |
ST/X provided methods ending in 'MSB:' for this. |
|
98 |
In the meanwhile, VW added protocol ending in 'bigEndian:', |
|
3433 | 99 |
which has been added here for compatibility. |
100 |
(certainly a point, where an ansi-standard will help) |
|
68 | 101 |
" |
102 |
! ! |
|
1 | 103 |
|
3363
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parents:
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changeset
|
104 |
!UninterpretedBytes class methodsFor:'instance creation'! |
3bb61f364fe3
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parents:
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changeset
|
105 |
|
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parents:
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changeset
|
106 |
from:aCollection |
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parents:
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changeset
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107 |
^ ByteArray from:aCollection |
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parents:
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changeset
|
108 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
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changeset
|
109 |
"Created: / 3.4.1998 / 13:29:50 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
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changeset
|
110 |
"Modified: / 3.4.1998 / 13:30:12 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
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changeset
|
111 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
112 |
|
1 | 113 |
!UninterpretedBytes class methodsFor:'queries'! |
114 |
||
115 |
isBigEndian |
|
77 | 116 |
"return true, if words/shorts store the most-significant |
117 |
byte first (MSB), false if least-sign.-first (LSB). |
|
4019
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parents:
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118 |
I.e. false for vax, intel; true for m68k, sun. |
c9284ca27a4a
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parents:
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|
119 |
|
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tuned some doubleWordAt methods;
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parents:
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|
120 |
Notice: UninterpretedBytes isBigEndian |
4308 | 121 |
this is inlined both by stc and the jit compiler" |
1 | 122 |
|
123 |
%{ /* NOCONTEXT */ |
|
124 |
||
4275 | 125 |
#if defined(__MSBFIRST) || defined(sparc) |
3936 | 126 |
RETURN (true); |
127 |
#else |
|
4275 | 128 |
# if defined(__LSBFIRST) || defined(i386) || defined(alpha) |
129 |
RETURN (false); |
|
130 |
# else |
|
1 | 131 |
/* |
132 |
* I dont like ifdefs - you always forget some ... |
|
3433 | 133 |
* therefore we look into a structure at run-time. |
134 |
* (also, there are CPUs around [mips], where the byteorder |
|
135 |
* is programmable, and which come in different flavours) |
|
136 |
* |
|
137 |
* NOTICE: |
|
138 |
* both the JIT and stc may inline this to a |
|
139 |
* constant for systems where this is known. |
|
1 | 140 |
*/ |
141 |
union { |
|
4308 | 142 |
unsigned int u_l; |
143 |
char u_c[sizeof(int)]; |
|
1 | 144 |
} u; |
145 |
||
146 |
u.u_l = 0x87654321; |
|
77 | 147 |
if (u.u_c[0] == 0x21) RETURN (false); |
148 |
RETURN (true); |
|
4275 | 149 |
# endif |
3936 | 150 |
#endif |
1 | 151 |
%} |
3433 | 152 |
" |
153 |
UninterpretedBytes isBigEndian |
|
154 |
" |
|
3209 | 155 |
! |
3207
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merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
156 |
|
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merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
1294
diff
changeset
|
157 |
isBuiltInClass |
a6e3c98e2a8e
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parents:
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diff
changeset
|
158 |
"return true if this class is known by the run-time-system. |
3323 | 159 |
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
|
160 |
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
|
161 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
162 |
^ self == UninterpretedBytes |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
163 |
|
3323 | 164 |
"Modified: / 23.4.1996 / 15:56:25 / cg" |
165 |
"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
|
166 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
167 |
|
3459 | 168 |
!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
|
169 |
|
4422 | 170 |
bcdByteAt:index |
171 |
"return the bcd-value for a byte at index." |
|
172 |
||
4425 | 173 |
^ (self byteAt:index) decodeFromBCD |
4422 | 174 |
|
175 |
" |
|
176 |
#[ 16r55 ] bcdByteAt:1 |
|
177 |
#[ 16r99] bcdByteAt:1 |
|
178 |
#[ 16rAA] bcdByteAt:1 |
|
179 |
" |
|
180 |
! |
|
181 |
||
182 |
bcdByteAt:index put:aNumber |
|
183 |
"set the byte at index as bcd-value." |
|
184 |
||
185 |
(aNumber between:0 and:99) ifFalse:[ |
|
4530
793b116fef3e
error: vs. error:mayProceed:
Claus Gittinger <cg@exept.de>
parents:
4515
diff
changeset
|
186 |
self error:'invalid value for BCD encoding' |
4422 | 187 |
]. |
4425 | 188 |
^ self byteAt:index put:aNumber encodeAsBCD |
4422 | 189 |
|
190 |
" |
|
4425 | 191 |
(((ByteArray new:1) bcdByteAt:1 put:55; yourself) at:1) hexPrintString |
192 |
(((ByteArray new:1) bcdByteAt:1 put:99; yourself) at:1) hexPrintString |
|
193 |
(((ByteArray new:1) bcdByteAt:1 put:100; yourself) at:1) hexPrintString |
|
194 |
(((ByteArray new:1) bcdByteAt:1 put:-1; yourself) at:1) hexPrintString |
|
4422 | 195 |
" |
196 |
! |
|
197 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
198 |
byteAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
199 |
"return the byte at index. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
200 |
For ByteArray, this is the same as basicAt:; |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
201 |
however, for strings or symbols, this returns a numeric byteValue |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
202 |
instead of a character." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
203 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
204 |
^ self subclassResponsibility |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
205 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
206 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
207 |
byteAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
208 |
"set the byte at index. For ByteArray, this is the same as basicAt:put:. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
209 |
However, for Strings, this expects a byteValue to be stored." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
210 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
211 |
^ self subclassResponsibility |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
212 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
213 |
|
3459 | 214 |
signedByteAt:index |
215 |
"return the byte at index as a signed 8 bit value. |
|
216 |
The index is a smalltalk index (i.e. 1-based). |
|
217 |
This may be worth a primitive." |
|
218 |
||
219 |
^ (self at:index) signExtendedByteValue |
|
220 |
||
221 |
" |
|
222 |
|b| |
|
223 |
b := ByteArray new:2. |
|
224 |
b at:1 put:16rFF. |
|
225 |
b at:2 put:16r7F. |
|
226 |
b signedByteAt:1 |
|
227 |
" |
|
228 |
||
229 |
"Modified: 1.7.1996 / 21:13:53 / cg" |
|
230 |
! |
|
231 |
||
232 |
signedByteAt:index put:aSignedByteValue |
|
233 |
"return the byte at index as a signed 8 bit value. |
|
234 |
The index is a smalltalk index (i.e. 1-based). |
|
235 |
Return the signedByteValue argument. |
|
236 |
This may be worth a primitive." |
|
237 |
||
238 |
|b "{ Class: SmallInteger }"| |
|
239 |
||
240 |
aSignedByteValue >= 0 ifTrue:[ |
|
241 |
b := aSignedByteValue |
|
242 |
] ifFalse:[ |
|
243 |
b := 16r100 + aSignedByteValue |
|
244 |
]. |
|
245 |
self at:index put:b. |
|
246 |
^ aSignedByteValue |
|
247 |
||
248 |
" |
|
249 |
|b| |
|
250 |
b := ByteArray new:2. |
|
251 |
b signedByteAt:1 put:-1. |
|
252 |
b at:1 |
|
253 |
" |
|
254 |
||
255 |
"Modified: 1.7.1996 / 21:12:37 / cg" |
|
256 |
! ! |
|
257 |
||
258 |
!UninterpretedBytes methodsFor:'accessing-floats & doubles'! |
|
259 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
260 |
doubleAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
261 |
"return the 8-bytes starting at index as a Float. |
3433 | 262 |
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
|
263 |
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
|
264 |
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
|
265 |
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
|
266 |
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
|
267 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
268 |
|newFloat| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
269 |
|
3433 | 270 |
%{ |
271 |
/* |
|
272 |
* handle the most common cases fast ... |
|
273 |
*/ |
|
274 |
if (__isSmallInteger(index)) { |
|
4308 | 275 |
unsigned char *cp; |
3433 | 276 |
int sz; |
4308 | 277 |
|
3433 | 278 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
4308 | 279 |
if (cp) { |
3433 | 280 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
281 |
||
3434 | 282 |
if ((idx+(sizeof(double)-1)) < sz) { |
3433 | 283 |
cp += idx; |
284 |
/* |
|
285 |
* aligned |
|
286 |
*/ |
|
3434 | 287 |
if (((INT)cp & (sizeof(double)-1)) == 0) { |
3433 | 288 |
double dVal = ((double *)cp)[0]; |
3434 | 289 |
OBJ f; |
290 |
||
291 |
__qMKFLOAT(f, dVal); |
|
4308 | 292 |
RETURN (f); |
3433 | 293 |
} |
294 |
} |
|
295 |
} |
|
296 |
} |
|
297 |
%}. |
|
298 |
||
3207
a6e3c98e2a8e
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parents:
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diff
changeset
|
299 |
newFloat := Float basicNew. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
300 |
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
|
301 |
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:
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diff
changeset
|
302 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
303 |
^ newFloat. |
3433 | 304 |
|
305 |
" |
|
306 |
|b| |
|
307 |
||
308 |
b := ByteArray new:20. |
|
309 |
b doubleAt:1 put:(Float pi). |
|
310 |
Transcript showCR:b. |
|
311 |
Transcript showCR:(b doubleAt:1) |
|
312 |
" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
313 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
314 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
315 |
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
|
316 |
"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
|
317 |
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
|
318 |
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
|
319 |
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
|
320 |
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
|
321 |
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
|
322 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
323 |
|newFloat| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
324 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
325 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 326 |
^ 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
|
327 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
328 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
329 |
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
|
330 |
1 to:8 do:[:destIndex| |
4308 | 331 |
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
|
332 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
333 |
^ newFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
334 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
335 |
"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
|
336 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
337 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
338 |
doubleAt:index put:aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
339 |
"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
|
340 |
starting at index. |
3433 | 341 |
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
|
342 |
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
|
343 |
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
|
344 |
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
|
345 |
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
|
346 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
347 |
|flt| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
348 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
349 |
flt := aFloat asFloat. |
3433 | 350 |
%{ |
351 |
/* |
|
352 |
* handle the most common cases fast ... |
|
353 |
*/ |
|
354 |
if (__isSmallInteger(index) && __isFloat(flt)) { |
|
4308 | 355 |
unsigned char *cp; |
356 |
int sz; |
|
3433 | 357 |
|
4308 | 358 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
359 |
if (cp) { |
|
360 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3433 | 361 |
|
4308 | 362 |
if ((idx+(sizeof(double)-1)) < sz) { |
363 |
cp += idx; |
|
364 |
/* |
|
365 |
* aligned |
|
366 |
*/ |
|
367 |
if (((INT)cp & (sizeof(double)-1)) == 0) { |
|
368 |
((double *)cp)[0] = __floatVal(flt); |
|
369 |
RETURN (aFloat); |
|
370 |
} |
|
371 |
} |
|
372 |
} |
|
3433 | 373 |
} |
374 |
%}. |
|
375 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
376 |
1 to:8 do:[:srcIndex| |
4308 | 377 |
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
|
378 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
379 |
^ aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
380 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
381 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
382 |
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
|
383 |
"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
|
384 |
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
|
385 |
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
|
386 |
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
|
387 |
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
|
388 |
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
|
389 |
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
|
390 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
391 |
|flt| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
392 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
393 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 394 |
^ 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
|
395 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
396 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
397 |
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
|
398 |
1 to:8 do:[:srcIndex| |
4308 | 399 |
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
|
400 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
401 |
^ aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
402 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
403 |
"Created: / 15.5.1998 / 17:22:27 / cg" |
3447 | 404 |
"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
|
405 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
406 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
407 |
floatAt:index |
3434 | 408 |
"return the 4-bytes starting at index as a ShortFloat. |
3433 | 409 |
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
|
410 |
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
|
411 |
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
|
412 |
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
|
413 |
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
|
414 |
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
|
415 |
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
|
416 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
417 |
|newFloat| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
418 |
|
3434 | 419 |
%{ |
420 |
/* |
|
421 |
* handle the most common cases fast ... |
|
422 |
*/ |
|
423 |
if (__isSmallInteger(index)) { |
|
4308 | 424 |
unsigned char *cp; |
425 |
int sz; |
|
3434 | 426 |
|
4308 | 427 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
428 |
if (cp) { |
|
429 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 430 |
|
4308 | 431 |
if ((idx+(sizeof(float)-1)) < sz) { |
432 |
cp += idx; |
|
433 |
/* |
|
434 |
* aligned |
|
435 |
*/ |
|
436 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
437 |
float fVal = ((float *)cp)[0]; |
|
3434 | 438 |
OBJ f; |
439 |
||
440 |
__qMKSFLOAT(f, fVal); |
|
4308 | 441 |
RETURN (f); |
442 |
} |
|
443 |
} |
|
444 |
} |
|
3434 | 445 |
} |
446 |
%}. |
|
447 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
448 |
newFloat := ShortFloat basicNew. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
449 |
1 to:4 do:[:destIndex| |
4308 | 450 |
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
|
451 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
452 |
^ newFloat. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
453 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
454 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
455 |
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
|
456 |
"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
|
457 |
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
|
458 |
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
|
459 |
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
|
460 |
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
|
461 |
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
|
462 |
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
|
463 |
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
|
464 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
465 |
|newFloat| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
466 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
467 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 468 |
^ 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
|
469 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
470 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
471 |
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
|
472 |
1 to:4 do:[:destIndex| |
4308 | 473 |
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
|
474 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
475 |
^ newFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
476 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
477 |
"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
|
478 |
"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
|
479 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
480 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
481 |
floatAt:index put:aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
482 |
"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
|
483 |
starting at index. |
3433 | 484 |
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
|
485 |
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
|
486 |
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
|
487 |
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
|
488 |
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
|
489 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
490 |
|sflt| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
491 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
492 |
sflt := aFloat asShortFloat. |
3434 | 493 |
%{ |
494 |
/* |
|
495 |
* handle the most common cases fast ... |
|
496 |
*/ |
|
497 |
if (__isSmallInteger(index) && __isShortFloat(sflt)) { |
|
4308 | 498 |
unsigned char *cp; |
499 |
int sz; |
|
3434 | 500 |
|
4308 | 501 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
502 |
if (cp) { |
|
503 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 504 |
|
4308 | 505 |
if ((idx+(sizeof(float)-1)) < sz) { |
506 |
cp += idx; |
|
507 |
/* |
|
508 |
* aligned |
|
509 |
*/ |
|
510 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
511 |
((float *)cp)[0] = __shortFloatVal(sflt); |
|
3434 | 512 |
|
4308 | 513 |
RETURN (aFloat); |
514 |
} |
|
515 |
} |
|
516 |
} |
|
3434 | 517 |
} |
518 |
%}. |
|
519 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
520 |
1 to:4 do:[:srcIndex| |
4308 | 521 |
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
|
522 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
523 |
^ aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
524 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
525 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
526 |
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
|
527 |
"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
|
528 |
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
|
529 |
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
|
530 |
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
|
531 |
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
|
532 |
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
|
533 |
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
|
534 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
535 |
|sflt| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
536 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
537 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
4308 | 538 |
^ 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
|
539 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
540 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
541 |
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
|
542 |
1 to:4 do:[:srcIndex| |
4308 | 543 |
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
|
544 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
545 |
^ aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
546 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
547 |
"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
|
548 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
549 |
|
3323 | 550 |
ieeeDoubleAt:index |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
551 |
"retrieve the 8 bytes starting at index as a float. |
3433 | 552 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 553 |
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
|
554 |
number format." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
555 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
556 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
557 |
currently, we assume that the machines native number format is already |
3323 | 558 |
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
|
559 |
to an IBM 370 or old VAX etc. |
3323 | 560 |
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
|
561 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
562 |
" |
3433 | 563 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
564 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
565 |
^ self doubleAt:index |
3323 | 566 |
|
567 |
"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
|
568 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
569 |
|
3323 | 570 |
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
|
571 |
"store the value of the argument, aFloat into the receiver |
3433 | 572 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 573 |
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
|
574 |
(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
|
575 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
576 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
577 |
currently, we assume that the machines native number format is already |
3323 | 578 |
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
|
579 |
to an IBM 370 or old VAX etc. |
3323 | 580 |
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
|
581 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
582 |
" |
3433 | 583 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
584 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
585 |
^ self doubleAt:index put:aFloat |
3323 | 586 |
|
587 |
"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
|
588 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
589 |
|
3323 | 590 |
ieeeFloatAt:index |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
591 |
"retrieve the 4 bytes starting at index as a float. |
3433 | 592 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 593 |
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
|
594 |
number format." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
595 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
596 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
597 |
currently, we assume that the machines native number format is already |
3323 | 598 |
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
|
599 |
to an IBM 370 or old VAX etc. |
3323 | 600 |
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
|
601 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
602 |
" |
3433 | 603 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
604 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
605 |
^ self floatAt:index |
3323 | 606 |
|
607 |
"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
|
608 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
609 |
|
3323 | 610 |
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
|
611 |
"store the value of the argument, aFloat into the receiver |
3433 | 612 |
starting at index, which is a smalltalk index (i.e. 1-based). |
613 |
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
|
614 |
(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
|
615 |
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
|
616 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
617 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
618 |
currently, we assume that the machines native number format is already |
3323 | 619 |
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
|
620 |
to an IBM 370 or old VAX etc. |
3323 | 621 |
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
|
622 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
623 |
" |
3433 | 624 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
625 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
626 |
^ self floatAt:index put:aFloat |
3323 | 627 |
|
628 |
"Created: / 5.3.1998 / 10:51:11 / stefan" |
|
3459 | 629 |
! ! |
630 |
||
631 |
!UninterpretedBytes methodsFor:'accessing-longlongs'! |
|
632 |
||
633 |
longLongAt:index |
|
634 |
"return the 8-bytes starting at index as a signed Integer. |
|
635 |
The index is a smalltalk index (i.e. 1-based). |
|
636 |
The value is retrieved in the machines natural byte order. |
|
637 |
This may be worth a primitive." |
|
638 |
||
639 |
|w| |
|
640 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
641 |
w := self unsignedLongLongAt:index bigEndian:(UninterpretedBytes isBigEndian). |
3459 | 642 |
(w > (16r7FFFFFFFFFFFFFFF)) ifTrue:[ |
4308 | 643 |
^ w - (16r10000000000000000) |
3459 | 644 |
]. |
645 |
^ w |
|
646 |
||
647 |
" |
|
648 |
|b| |
|
649 |
b := ByteArray new:4. |
|
650 |
b unsignedLongLongAt:1 put:16rFFFFFFFFFFFFFFFF. |
|
651 |
(b longLongAt:1) |
|
652 |
" |
|
653 |
||
654 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
655 |
"Created: / 5.3.1998 / 14:40:05 / stefan" |
|
656 |
"Modified: / 5.3.1998 / 14:58:32 / stefan" |
|
657 |
! |
|
658 |
||
659 |
longLongAt:index bigEndian:msb |
|
660 |
"return the 8-bytes starting at index as a signed Integer. |
|
661 |
The index is a smalltalk index (i.e. 1-based). |
|
662 |
The value is retrieved in the given byte order. |
|
663 |
This may be worth a primitive." |
|
664 |
||
665 |
|w| |
|
666 |
||
667 |
w := self unsignedLongLongAt:index bigEndian:msb. |
|
668 |
(w > (16r7FFFFFFFFFFFFFFF)) ifTrue:[ |
|
4308 | 669 |
^ w - (16r10000000000000000) |
3459 | 670 |
]. |
671 |
^ w |
|
672 |
||
673 |
" |
|
674 |
|b| |
|
675 |
b := ByteArray new:4. |
|
676 |
b unsignedLongLongAt:1 put:16rFFFFFFFFFFFFFFFF. |
|
677 |
(b longLongAt:1 msb:true) |
|
678 |
" |
|
679 |
||
680 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
681 |
"Created: / 5.3.1998 / 14:40:54 / stefan" |
|
682 |
"Modified: / 9.5.1998 / 01:10:59 / cg" |
|
683 |
! |
|
684 |
||
685 |
longLongAt:byteIndex put:anInteger |
|
686 |
"store a signed longLong (64bit) integer. |
|
687 |
The index is a smalltalk index (i.e. 1-based). |
|
688 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
689 |
||
690 |
^ self signedQuadWordAt:byteIndex put:anInteger |
|
691 |
||
692 |
"Modified: / 3.4.1998 / 13:33:14 / cg" |
|
693 |
"Created: / 3.4.1998 / 13:34:22 / cg" |
|
694 |
! |
|
695 |
||
696 |
longLongAt:byteIndex put:anInteger bigEndian:msb |
|
697 |
"store a signed longLong (64bit) integer. |
|
698 |
The index is a smalltalk index (i.e. 1-based). |
|
699 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
700 |
||
701 |
|v| |
|
702 |
||
703 |
v := anInteger. |
|
704 |
anInteger < 0 ifTrue:[ |
|
4308 | 705 |
v := v + 16r10000000000000000 |
3459 | 706 |
]. |
707 |
^ self unsignedLongLongAt:byteIndex put:v bigEndian:msb |
|
708 |
||
709 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
710 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
711 |
! |
|
712 |
||
713 |
quadWordAt:index MSB:msb |
|
714 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
715 |
The index is a smalltalk index (i.e. 1-based). |
|
716 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
717 |
||
718 |
|l |
|
719 |
bIdx "{ Class: SmallInteger }" |
|
720 |
delta "{ Class: SmallInteger }"| |
|
721 |
||
722 |
l := LargeInteger basicNew numberOfDigits:8. |
|
723 |
msb ifTrue:[ |
|
4308 | 724 |
bIdx := index + 7. |
725 |
delta := -1 |
|
3459 | 726 |
] ifFalse:[ |
4308 | 727 |
bIdx := index. |
728 |
delta := 1 |
|
3459 | 729 |
]. |
730 |
1 to:8 do:[:i | |
|
4308 | 731 |
l digitAt:i put:(self basicAt:bIdx). |
732 |
bIdx := bIdx + delta |
|
3459 | 733 |
]. |
734 |
^ l compressed |
|
735 |
||
736 |
" |
|
737 |
|b| |
|
738 |
||
739 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
740 |
(b quadWordAt:1 MSB:false) printStringRadix:16 |
|
741 |
" |
|
742 |
||
743 |
"Modified: 5.11.1996 / 14:06:21 / cg" |
|
744 |
! |
|
745 |
||
746 |
quadWordAt:index put:anInteger MSB:msb |
|
747 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
748 |
The index is a smalltalk index (i.e. 1-based). |
|
749 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
750 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
751 |
||
752 |
|bIdx "{ Class: SmallInteger }" |
|
753 |
delta "{ Class: SmallInteger }"| |
|
754 |
||
755 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
756 |
^ self elementBoundsError |
|
757 |
]. |
|
758 |
||
759 |
msb ifTrue:[ |
|
760 |
bIdx := index + 7. |
|
761 |
delta := -1 |
|
762 |
] ifFalse:[ |
|
763 |
bIdx := index. |
|
764 |
delta := 1 |
|
765 |
]. |
|
766 |
1 to:8 do:[:i | |
|
767 |
self basicAt:bIdx put:(anInteger digitAt:i). |
|
768 |
bIdx := bIdx + delta. |
|
769 |
]. |
|
770 |
^ anInteger |
|
771 |
||
772 |
" |
|
773 |
|b| |
|
774 |
b := ByteArray new:8. |
|
775 |
b quadWordAtIndex:1 put:16r0807060504030201 MSB:false. |
|
776 |
b inspect |
|
777 |
" |
|
778 |
! |
|
779 |
||
780 |
unsignedLongLongAt:index bigEndian:msb |
|
781 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
782 |
The index is a smalltalk index (i.e. 1-based). |
|
783 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
784 |
||
785 |
|l |
|
786 |
bIdx "{ Class: SmallInteger }" |
|
787 |
delta "{ Class: SmallInteger }"| |
|
788 |
||
789 |
l := LargeInteger basicNew numberOfDigits:8. |
|
790 |
msb ifTrue:[ |
|
4308 | 791 |
bIdx := index + 7. |
792 |
delta := -1 |
|
3459 | 793 |
] ifFalse:[ |
4308 | 794 |
bIdx := index. |
795 |
delta := 1 |
|
3459 | 796 |
]. |
797 |
1 to:8 do:[:i | |
|
4308 | 798 |
l digitAt:i put:(self basicAt:bIdx). |
799 |
bIdx := bIdx + delta |
|
3459 | 800 |
]. |
801 |
^ l compressed |
|
802 |
||
803 |
" |
|
804 |
|b| |
|
805 |
||
806 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
807 |
(b unsignedLongLongAt:1 bigEndian:false) printStringRadix:16 |
|
808 |
" |
|
809 |
||
810 |
"Modified: / 5.11.1996 / 14:06:21 / cg" |
|
811 |
"Modified: / 5.3.1998 / 14:04:44 / stefan" |
|
812 |
! |
|
813 |
||
814 |
unsignedLongLongAt:index put:anInteger |
|
815 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
816 |
The index is a smalltalk index (i.e. 1-based). |
|
817 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
818 |
The value is stored in natural byte order." |
|
819 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
820 |
^ self unsignedLongLongAt:index put:anInteger bigEndian:(UninterpretedBytes isBigEndian) |
3459 | 821 |
|
822 |
"Created: / 5.3.1998 / 14:44:00 / stefan" |
|
823 |
"Modified: / 5.3.1998 / 15:02:32 / stefan" |
|
824 |
! |
|
825 |
||
826 |
unsignedLongLongAt:index put:anInteger bigEndian:msb |
|
827 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
828 |
The index is a smalltalk index (i.e. 1-based). |
|
829 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
830 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
831 |
||
832 |
|bIdx "{ Class: SmallInteger }" |
|
833 |
delta "{ Class: SmallInteger }"| |
|
834 |
||
835 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
4308 | 836 |
^ self elementBoundsError |
3459 | 837 |
]. |
838 |
||
839 |
msb ifTrue:[ |
|
4308 | 840 |
bIdx := index + 7. |
841 |
delta := -1 |
|
3459 | 842 |
] ifFalse:[ |
4308 | 843 |
bIdx := index. |
844 |
delta := 1 |
|
3459 | 845 |
]. |
846 |
1 to:8 do:[:i | |
|
4308 | 847 |
self basicAt:bIdx put:(anInteger digitAt:i). |
848 |
bIdx := bIdx + delta. |
|
3459 | 849 |
]. |
850 |
^ anInteger |
|
851 |
||
852 |
" |
|
853 |
|b| |
|
854 |
b := ByteArray new:8. |
|
855 |
b unsignedLongLongAt:1 put:16r0807060504030201 bigEndian:false. |
|
856 |
b inspect |
|
857 |
" |
|
858 |
||
859 |
"Created: / 5.3.1998 / 14:06:02 / stefan" |
|
860 |
! ! |
|
861 |
||
862 |
!UninterpretedBytes methodsFor:'accessing-longs'! |
|
863 |
||
864 |
doubleWordAt:index |
|
865 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
866 |
The index is a smalltalk index (i.e. 1-based). |
|
4515 | 867 |
The value is retrieved in the machines natural byte order." |
3459 | 868 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
869 |
^ self doubleWordAt:index MSB:(UninterpretedBytes isBigEndian) |
3459 | 870 |
|
871 |
" |
|
872 |
|b| |
|
873 |
||
874 |
b := ByteArray withAll:#(1 2 3 4). |
|
875 |
(b doubleWordAt:1) printStringRadix:16 |
|
876 |
" |
|
877 |
||
878 |
"Modified: / 5.3.1998 / 14:57:35 / stefan" |
|
879 |
! |
|
880 |
||
881 |
doubleWordAt:index MSB:msb |
|
882 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
883 |
The index is a smalltalk index (i.e. 1-based). |
|
884 |
The value is retrieved MSB-first, if the msb-arg is true; |
|
4515 | 885 |
LSB-first otherwise." |
3459 | 886 |
|
887 |
|val |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
888 |
ival "{ Class: SmallInteger }" |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
889 |
t "{ Class: SmallInteger }" |
3459 | 890 |
i "{ Class: SmallInteger }" |
891 |
b1 "{ Class: SmallInteger }" |
|
892 |
b2 "{ Class: SmallInteger }" |
|
893 |
b3 "{ Class: SmallInteger }" |
|
894 |
b4 "{ Class: SmallInteger }"| |
|
895 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
896 |
%{ |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
897 |
/* |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
898 |
* handle the most common cases fast ... |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
899 |
*/ |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
900 |
if (__isSmallInteger(index)) { |
4515 | 901 |
unsigned char *cp; |
902 |
int sz; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
903 |
|
4515 | 904 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
905 |
if (cp) { |
|
906 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
907 |
unsigned int iVal; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
908 |
|
4515 | 909 |
if ((idx+(sizeof(int)-1)) < sz) { |
910 |
cp += idx; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
911 |
|
4515 | 912 |
if (msb == true) { |
4275 | 913 |
#if defined(__MSBFIRST) || defined(sparc) |
4515 | 914 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
915 |
/* |
|
916 |
* aligned |
|
917 |
*/ |
|
918 |
iVal = ((unsigned int *)cp)[0]; |
|
919 |
} else |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
920 |
#endif |
4515 | 921 |
{ |
922 |
iVal = cp[0]; |
|
923 |
iVal = (iVal << 8) | cp[1]; |
|
924 |
iVal = (iVal << 8) | cp[2]; |
|
925 |
iVal = (iVal << 8) | cp[3]; |
|
926 |
} |
|
927 |
} else { |
|
4308 | 928 |
#if defined(i386) || (defined(UNALIGNED_FETCH_OK) && defined(__LSBFIRST)) |
4515 | 929 |
/* |
930 |
* aligned or not - we dont care |
|
931 |
* (i386 can fetch unaligned) |
|
932 |
*/ |
|
933 |
iVal = ((unsigned int *)cp)[0]; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
934 |
#else |
4308 | 935 |
# if defined(__LSBFIRST) || defined(i386) |
4515 | 936 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
937 |
/* |
|
938 |
* aligned |
|
939 |
*/ |
|
940 |
iVal = ((unsigned int *)cp)[0]; |
|
941 |
} else |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
942 |
# endif |
4515 | 943 |
{ |
944 |
iVal = cp[3]; |
|
945 |
iVal = (iVal << 8) | cp[2]; |
|
946 |
iVal = (iVal << 8) | cp[1]; |
|
947 |
iVal = (iVal << 8) | cp[0]; |
|
948 |
} |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
949 |
#endif |
4515 | 950 |
} |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
951 |
#ifdef alpha64 |
4515 | 952 |
RETURN (__MKSMALLINT(iVal)); |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
953 |
#else |
4515 | 954 |
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
|
955 |
#endif |
4515 | 956 |
} |
957 |
} |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
958 |
} |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
959 |
%}. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
960 |
|
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
961 |
"/ fallBack code - non ByteArray-like receiver |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
962 |
"/ or funny index |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
963 |
|
3459 | 964 |
i := index. |
965 |
b1 := self at:i. |
|
966 |
b2 := self at:(i+1). |
|
967 |
b3 := self at:(i+2). |
|
968 |
b4 := self at:(i+3). |
|
969 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
970 |
msb ifFalse:[ |
4515 | 971 |
t := b4. b4 := b1. b1 := t. |
972 |
t := b3. b3 := b2. b2 := t. |
|
3459 | 973 |
]. |
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
974 |
ival := b1. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
975 |
ival := (ival bitShift:8) + b2. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
976 |
ival := (ival bitShift:8) + b3. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
977 |
val := (ival bitShift:8) + b4. |
3459 | 978 |
^ val |
979 |
||
980 |
" |
|
981 |
|b| |
|
982 |
||
983 |
b := ByteArray withAll:#(1 2 3 4). |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
984 |
(b doubleWordAt:1 MSB:true) printStringRadix:16. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
985 |
(b doubleWordAt:1 MSB:false) printStringRadix:16 |
3459 | 986 |
" |
987 |
||
988 |
! |
|
989 |
||
990 |
doubleWordAt:index put:value |
|
991 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
992 |
The index is a smalltalk index (i.e. 1-based). |
|
993 |
The value should be in the range 0 to 16rFFFFFFFF |
|
994 |
(for negative values, the stored value is not defined). |
|
4515 | 995 |
The value is stored in the machines natural byte order." |
3459 | 996 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
997 |
^ self doubleWordAt:index put:value MSB:(UninterpretedBytes isBigEndian) |
3459 | 998 |
|
999 |
" |
|
1000 |
|b| |
|
1001 |
b := ByteArray new:4. |
|
1002 |
b doubleWordAt:1 put:16r04030201. |
|
1003 |
b inspect |
|
1004 |
" |
|
1005 |
||
1006 |
"Modified: / 5.3.1998 / 14:57:48 / stefan" |
|
1007 |
! |
|
1008 |
||
1009 |
doubleWordAt:index put:aNumber MSB:msb |
|
1010 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
1011 |
The index is a smalltalk index (i.e. 1-based). |
|
1012 |
The value must be in the range 0 to 16rFFFFFFFF. |
|
4515 | 1013 |
The value is stored MSB-first if msb is true; LSB-first otherwise." |
3459 | 1014 |
|
1015 |
|i "{ Class: SmallInteger }" | |
|
1016 |
||
1017 |
((aNumber < 0) or:[aNumber > 16rFFFFFFFF]) ifTrue:[ |
|
4515 | 1018 |
^ self elementBoundsError |
3459 | 1019 |
]. |
1020 |
||
1021 |
i := index. |
|
1022 |
msb ifTrue:[ |
|
4515 | 1023 |
self at:i put:(aNumber digitAt:4). |
1024 |
self at:(i+1) put:(aNumber digitAt:3). |
|
1025 |
self at:(i+2) put:(aNumber digitAt:2). |
|
1026 |
self at:(i+3) put:(aNumber digitAt:1). |
|
3459 | 1027 |
] ifFalse:[ |
4515 | 1028 |
self at:i put:(aNumber digitAt:1). |
1029 |
self at:(i+1) put:(aNumber digitAt:2). |
|
1030 |
self at:(i+2) put:(aNumber digitAt:3). |
|
1031 |
self at:(i+3) put:(aNumber digitAt:4). |
|
3459 | 1032 |
]. |
1033 |
^ aNumber |
|
1034 |
||
1035 |
" |
|
1036 |
|b| |
|
1037 |
b := ByteArray new:8. |
|
1038 |
b doubleWordAt:1 put:16r04030201 MSB:true. |
|
1039 |
b doubleWordAt:5 put:16r04030201 MSB:false. |
|
1040 |
b inspect |
|
1041 |
" |
|
1042 |
||
1043 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1044 |
"Modified: / 5.3.1998 / 11:42:17 / stefan" |
|
1045 |
! |
|
1046 |
||
1047 |
doubleWordAtDoubleWordIndex:index |
|
1048 |
"return the unsigned long at index, anInteger. |
|
1049 |
Fetching in the machines natural byte order. |
|
1050 |
Indices are 1-based and scaled as appropriate to allow |
|
1051 |
accessing the memory as an array of doubleWord entries. |
|
1052 |
(i.e. indices are 1, 2, ...)" |
|
1053 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1054 |
^ self doubleWordAtDoubleWordIndex:index MSB:(UninterpretedBytes isBigEndian) |
3459 | 1055 |
|
1056 |
"Created: / 21.1.1998 / 17:43:53 / cg" |
|
1057 |
"Modified: / 5.3.1998 / 14:58:06 / stefan" |
|
1058 |
! |
|
1059 |
||
1060 |
doubleWordAtDoubleWordIndex:index MSB:msb |
|
1061 |
"return the unsigned long at index, anInteger. |
|
1062 |
Fetching is MSB if msb is true, LSB otherwise. |
|
1063 |
Indices are 1-based and scaled as appropriate to allow |
|
1064 |
accessing the memory as an array of doubleWord entries. |
|
1065 |
(i.e. indices are 1, 2, ...)" |
|
1066 |
||
1067 |
^ self doubleWordAt:(index - 1 * 4 + 1) MSB:msb |
|
1068 |
||
1069 |
"Created: / 21.1.1998 / 17:44:07 / cg" |
|
1070 |
! |
|
1071 |
||
1072 |
doubleWordAtDoubleWordIndex:index put:value |
|
1073 |
"set the long at index, anInteger. |
|
1074 |
Storing in the machines natural byte order. |
|
1075 |
Indices are 1-based and scaled as appropriate to allow |
|
1076 |
accessing the memory as an array of doubleWord entries. |
|
1077 |
(i.e. indices are 1, 2, ...)" |
|
1078 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1079 |
^ self doubleWordAtDoubleWordIndex:index put:value MSB:(UninterpretedBytes isBigEndian) |
3459 | 1080 |
|
1081 |
"Created: / 21.1.1998 / 17:44:13 / cg" |
|
1082 |
"Modified: / 5.3.1998 / 14:58:19 / stefan" |
|
1083 |
! |
|
1084 |
||
1085 |
doubleWordAtDoubleWordIndex:index put:value MSB:msb |
|
1086 |
"set the long at index, anInteger. |
|
1087 |
Storing is MSB if msb is true, LSB otherwise. |
|
1088 |
Indices are 1-based and scaled as appropriate to allow |
|
1089 |
accessing the memory as an array of doubleWord entries. |
|
1090 |
(i.e. indices are 1, 2, ...)" |
|
1091 |
||
1092 |
^ self doubleWordAt:(index - 1 * 4 + 1) put:value MSB:msb |
|
1093 |
||
1094 |
"Created: / 21.1.1998 / 17:44:19 / cg" |
|
3323 | 1095 |
! |
1096 |
||
1097 |
longAt:index |
|
1098 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1099 |
The index is a smalltalk index (i.e. 1-based). |
4308 | 1100 |
The value is retrieved in the machines natural byte order, |
1101 |
therefore, this should only be used for byte-data which is |
|
1102 |
only used inside this machine. |
|
1103 |
To setup data packets which are to be sent to other machines, |
|
1104 |
or stored into a file, always use longAt:MSB: and specify |
|
1105 |
a definite byteOrder." |
|
3323 | 1106 |
|
1107 |
|w| |
|
1108 |
||
3434 | 1109 |
%{ |
1110 |
/* |
|
1111 |
* handle the most common cases fast ... |
|
1112 |
*/ |
|
1113 |
if (__isSmallInteger(index)) { |
|
4308 | 1114 |
unsigned char *cp; |
1115 |
int sz; |
|
3434 | 1116 |
|
4308 | 1117 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1118 |
if (cp) { |
|
1119 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 1120 |
|
4308 | 1121 |
if ((idx+(sizeof(int)-1)) < sz) { |
1122 |
cp += idx; |
|
1123 |
#if defined(i386) |
|
1124 |
/* |
|
1125 |
* aligned or not, we dont care (i386 can do both) |
|
1126 |
*/ |
|
1127 |
{ |
|
1128 |
int iVal = ((int *)cp)[0]; |
|
3434 | 1129 |
|
4308 | 1130 |
RETURN (__MKINT(iVal)); |
1131 |
} |
|
1132 |
#else |
|
1133 |
/* |
|
1134 |
* aligned |
|
1135 |
*/ |
|
1136 |
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
|
1137 |
int iVal = ((int *)cp)[0]; |
4308 | 1138 |
|
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1139 |
# ifdef alpha64 |
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1140 |
RETURN (__MKSMALLINT(iVal)); |
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1141 |
# else |
4308 | 1142 |
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
|
1143 |
# endif |
4308 | 1144 |
} |
1145 |
#endif |
|
1146 |
} |
|
1147 |
} |
|
3434 | 1148 |
} |
1149 |
%}. |
|
1150 |
||
3323 | 1151 |
w := self unsignedLongAt:index. |
1152 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
4308 | 1153 |
^ w - (16r100000000) |
3323 | 1154 |
]. |
1155 |
^ w |
|
1156 |
||
1157 |
" |
|
1158 |
|b| |
|
1159 |
b := ByteArray new:4. |
|
1160 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1161 |
(b longAt:1) |
|
1162 |
" |
|
1163 |
||
1164 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
1165 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
1166 |
! |
|
1167 |
||
1168 |
longAt:index bigEndian:msb |
|
1169 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1170 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1171 |
Depending on msb, the value is retrieved MSB-first or LSB-first. |
1172 |
This may be worth a primitive." |
|
1173 |
||
1174 |
|w| |
|
1175 |
||
1176 |
w := self unsignedLongAt:index bigEndian:msb. |
|
1177 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
4308 | 1178 |
^ w - (16r100000000) |
3323 | 1179 |
]. |
1180 |
^ w |
|
1181 |
||
1182 |
" |
|
1183 |
|b| |
|
1184 |
b := ByteArray new:4. |
|
1185 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1186 |
(b longAt:1) |
|
1187 |
" |
|
1188 |
||
1189 |
"Modified: / 1.7.1996 / 21:11:33 / cg" |
|
1190 |
"Created: / 5.3.1998 / 14:02:03 / stefan" |
|
1191 |
! |
|
1192 |
||
1193 |
longAt:index put:value |
|
1194 |
"set the 4-bytes starting at index from the signed Integer value. |
|
3433 | 1195 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1196 |
The value is stored in the machines natural byte order. |
1197 |
This may be worth a primitive. |
|
1198 |
||
1199 |
This is the ST80 version of #signedDoubleWordAt:put:" |
|
1200 |
||
1201 |
|v| |
|
1202 |
||
3434 | 1203 |
%{ |
1204 |
/* |
|
1205 |
* handle the most common cases fast ... |
|
1206 |
*/ |
|
1207 |
if (__isSmallInteger(index)) { |
|
4308 | 1208 |
unsigned char *cp; |
1209 |
int sz; |
|
3434 | 1210 |
|
4308 | 1211 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1212 |
if (cp) { |
|
1213 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 1214 |
|
4308 | 1215 |
if ((idx+(sizeof(int)-1)) < sz) { |
1216 |
cp += idx; |
|
1217 |
/* |
|
1218 |
* aligned |
|
1219 |
*/ |
|
1220 |
if (((INT)cp & (sizeof(int)-1)) == 0) { |
|
3434 | 1221 |
int __v; |
1222 |
||
4308 | 1223 |
if (__isSmallInteger(value)) { |
1224 |
((int *)cp)[0] = __intVal(value); |
|
1225 |
RETURN (value); |
|
3434 | 1226 |
} |
1227 |
if (__v = __signedLongIntVal(value)) { |
|
1228 |
((int *)cp)[0] = __v; |
|
1229 |
RETURN (value); |
|
1230 |
} |
|
4308 | 1231 |
} |
1232 |
} |
|
1233 |
} |
|
3434 | 1234 |
} |
1235 |
%}. |
|
1236 |
||
3323 | 1237 |
value >= 0 ifTrue:[ |
4308 | 1238 |
v := value |
3323 | 1239 |
] ifFalse:[ |
4308 | 1240 |
v := value + 16r100000000 |
3323 | 1241 |
]. |
1242 |
self unsignedLongAt:index put:v. |
|
1243 |
^ value |
|
1244 |
||
1245 |
" |
|
1246 |
|b| |
|
1247 |
b := ByteArray new:4. |
|
1248 |
b longAt:1 put:-1. |
|
1249 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1250 |
" |
|
1251 |
||
1252 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1253 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1254 |
! |
|
1255 |
||
3444 | 1256 |
longAt:byteIndex put:anInteger bigEndian:msb |
1257 |
"store a signed long (32bit) integer. |
|
1258 |
The index is a smalltalk index (i.e. 1-based). |
|
1259 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
1260 |
||
1261 |
|v| |
|
1262 |
||
1263 |
v := anInteger. |
|
1264 |
anInteger < 0 ifTrue:[ |
|
4308 | 1265 |
v := v + 16r100000000 |
3444 | 1266 |
]. |
1267 |
^ self unsignedLongAt:byteIndex put:v bigEndian:msb |
|
1268 |
||
1269 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
1270 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
1271 |
! |
|
1272 |
||
6492 | 1273 |
pointerAt:index put:value |
1274 |
"set the pointer starting at index from the signed Integer value. |
|
1275 |
The index is a smalltalk index (i.e. 1-based). |
|
1276 |
Only aligned accesses are allowed. |
|
1277 |
The value is either an ExternalAddress or ExternalBytes" |
|
1278 |
||
1279 |
%{ |
|
1280 |
OBJ *pointer; |
|
1281 |
||
1282 |
if (__isExternalAddress(value)) { |
|
1283 |
pointer = __externalAddressVal(value); |
|
1284 |
} else if (__isExternalBytes(value)) { |
|
1285 |
pointer = __externalBytesVal(value); |
|
6885 | 1286 |
if (pointer == (OBJ *)0) |
6492 | 1287 |
pointer = 0; |
1288 |
} else goto bad; |
|
1289 |
||
1290 |
if (__isSmallInteger(index)) { |
|
1291 |
unsigned char *cp; |
|
1292 |
int sz; |
|
1293 |
||
1294 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1295 |
if (cp) { |
|
1296 |
unsigned INT idx = ((unsigned INT)__smallIntegerVal(index)) - 1; |
|
1297 |
||
1298 |
if ((idx+(sizeof(pointer)-1)) < sz) { |
|
1299 |
cp += idx; |
|
1300 |
/* |
|
1301 |
* aligned |
|
1302 |
*/ |
|
1303 |
if (((INT)cp & (sizeof(pointer)-1)) == 0) { |
|
1304 |
((char **)cp)[0] = (char *) pointer; |
|
1305 |
RETURN (value); |
|
1306 |
} |
|
1307 |
} |
|
1308 |
} |
|
1309 |
} |
|
1310 |
bad:; |
|
1311 |
%}. |
|
1312 |
||
1313 |
self primitiveFailed. |
|
1314 |
||
1315 |
" |
|
1316 |
|b| |
|
1317 |
b := ByteArray new:ExternalAddress pointerSize. |
|
1318 |
b pointerAt:1 put:(ExternalAddress newAddress:16r12345678). |
|
1319 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1320 |
" |
|
1321 |
||
1322 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1323 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1324 |
! |
|
1325 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1326 |
signedDoubleWordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1327 |
"return the 4-bytes starting at index as a signed Integer. |
3433 | 1328 |
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
|
1329 |
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
|
1330 |
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
|
1331 |
|
4515 | 1332 |
^ 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
|
1333 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1334 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1335 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1336 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1337 |
b doubleWordAt:1 put:16rFFFFFFFF. |
4515 | 1338 |
(b signedDoubleWordAt:1) |
1339 |
" |
|
1340 |
" |
|
1341 |
|b| |
|
1342 |
b := ByteArray new:4. |
|
1343 |
b signedDoubleWordAt:1 put:-1. |
|
1344 |
(b doubleWordAt:1) |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1345 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1346 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1347 |
"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
|
1348 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1349 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1350 |
signedDoubleWordAt:index MSB:msb |
4515 | 1351 |
"return the 4-bytes starting at index as a (signed) Integer. |
3433 | 1352 |
The index is a smalltalk index (i.e. 1-based). |
4515 | 1353 |
The value is retrieved MSB-first, if the msb-arg is true; |
1354 |
LSB-first otherwise." |
|
1355 |
||
1356 |
|val |
|
1357 |
ival "{ Class: SmallInteger }" |
|
1358 |
t "{ Class: SmallInteger }" |
|
1359 |
i "{ Class: SmallInteger }" |
|
1360 |
b1 "{ Class: SmallInteger }" |
|
1361 |
b2 "{ Class: SmallInteger }" |
|
1362 |
b3 "{ Class: SmallInteger }" |
|
1363 |
b4 "{ Class: SmallInteger }"| |
|
1364 |
||
1365 |
%{ |
|
1366 |
/* |
|
1367 |
* handle the most common cases fast ... |
|
1368 |
*/ |
|
1369 |
if (__isSmallInteger(index)) { |
|
1370 |
unsigned char *cp; |
|
1371 |
int sz; |
|
1372 |
||
1373 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1374 |
if (cp) { |
|
1375 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
1376 |
int iVal; |
|
1377 |
||
1378 |
if ((idx+(sizeof(int)-1)) < sz) { |
|
1379 |
cp += idx; |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1380 |
|
4515 | 1381 |
if (msb == true) { |
1382 |
#if defined(__MSBFIRST) || defined(sparc) |
|
1383 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
|
1384 |
/* |
|
1385 |
* aligned |
|
1386 |
*/ |
|
1387 |
iVal = ((int *)cp)[0]; |
|
1388 |
} else |
|
1389 |
#endif |
|
1390 |
{ |
|
1391 |
iVal = cp[0]; |
|
1392 |
iVal = (iVal << 8) | cp[1]; |
|
1393 |
iVal = (iVal << 8) | cp[2]; |
|
1394 |
iVal = (iVal << 8) | cp[3]; |
|
1395 |
} |
|
1396 |
} else { |
|
1397 |
#if defined(i386) || (defined(UNALIGNED_FETCH_OK) && defined(__LSBFIRST)) |
|
1398 |
/* |
|
1399 |
* aligned or not - we dont care |
|
1400 |
* (i386 can fetch unaligned) |
|
1401 |
*/ |
|
1402 |
iVal = ((int *)cp)[0]; |
|
1403 |
#else |
|
1404 |
# if defined(__LSBFIRST) || defined(i386) |
|
1405 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
|
1406 |
/* |
|
1407 |
* aligned |
|
1408 |
*/ |
|
1409 |
iVal = ((int *)cp)[0]; |
|
1410 |
} else |
|
1411 |
# endif |
|
1412 |
{ |
|
1413 |
iVal = cp[3]; |
|
1414 |
iVal = (iVal << 8) | cp[2]; |
|
1415 |
iVal = (iVal << 8) | cp[1]; |
|
1416 |
iVal = (iVal << 8) | cp[0]; |
|
1417 |
} |
|
1418 |
#endif |
|
1419 |
} |
|
1420 |
#ifdef alpha64 |
|
1421 |
RETURN (__MKSMALLINT(iVal)); |
|
1422 |
#else |
|
1423 |
RETURN (__MKINT(iVal)); |
|
1424 |
#endif |
|
1425 |
} |
|
1426 |
} |
|
1427 |
} |
|
1428 |
%}. |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1429 |
|
4515 | 1430 |
"/ fallBack code - non ByteArray-like receiver |
1431 |
"/ or funny index |
|
1432 |
||
1433 |
i := index. |
|
1434 |
b1 := self at:i. |
|
1435 |
b2 := self at:(i+1). |
|
1436 |
b3 := self at:(i+2). |
|
1437 |
b4 := self at:(i+3). |
|
1438 |
||
1439 |
msb ifFalse:[ |
|
1440 |
t := b4. b4 := b1. b1 := t. |
|
1441 |
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
|
1442 |
]. |
4515 | 1443 |
ival := b1. |
1444 |
ival := (ival bitShift:8) + b2. |
|
1445 |
ival := (ival bitShift:8) + b3. |
|
1446 |
val := (ival bitShift:8) + b4. |
|
1447 |
||
1448 |
(val > (16r7FFFFFFF)) ifTrue:[ |
|
1449 |
^ val - (16r100000000) |
|
1450 |
]. |
|
1451 |
^ val |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1452 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1453 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1454 |
|b| |
4515 | 1455 |
|
1456 |
b := ByteArray withAll:#(1 2 3 4). |
|
1457 |
(b signedDoubleWordAt:1 MSB:true) printStringRadix:16. |
|
1458 |
(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
|
1459 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1460 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1461 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1462 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1463 |
signedDoubleWordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1464 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1465 |
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
|
1466 |
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
|
1467 |
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
|
1468 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1469 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1470 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1471 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1472 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1473 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1474 |
v := value + 16r100000000 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1475 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1476 |
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
|
1477 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1478 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1479 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1480 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1481 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1482 |
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
|
1483 |
(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
|
1484 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1485 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1486 |
"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
|
1487 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1488 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1489 |
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
|
1490 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1491 |
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
|
1492 |
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
|
1493 |
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
|
1494 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1495 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1496 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1497 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1498 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1499 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1500 |
v := value + 16r100000000 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1501 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1502 |
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
|
1503 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1504 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1505 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1506 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1507 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1508 |
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
|
1509 |
(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
|
1510 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1511 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1512 |
"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
|
1513 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1514 |
|
3323 | 1515 |
unsignedLongAt:index |
1516 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1517 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1518 |
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
|
1519 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1520 |
Same as doubleWordAt: for protocol completeness" |
3323 | 1521 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1522 |
^ self doubleWordAt:index |
3323 | 1523 |
|
1524 |
" |
|
1525 |
|b| |
|
1526 |
||
1527 |
b := ByteArray withAll:#(1 2 3 4). |
|
1528 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1529 |
" |
|
1530 |
||
1531 |
"Created: / 5.3.1998 / 11:56:53 / stefan" |
|
1532 |
"Modified: / 5.3.1998 / 14:58:48 / stefan" |
|
1533 |
! |
|
1534 |
||
1535 |
unsignedLongAt:index bigEndian:msb |
|
1536 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1537 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1538 |
The value is retrieved MSB-first, if the msb-arg is true; |
1539 |
LSB-first otherwise. |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1540 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1541 |
Same as doubleWordAt:MSB: for protocol completeness" |
3323 | 1542 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1543 |
^ self doubleWordAt:index MSB:msb |
3323 | 1544 |
|
1545 |
" |
|
1546 |
|b| |
|
1547 |
||
1548 |
b := ByteArray withAll:#(1 2 3 4). |
|
1549 |
(b unsignedLongAt:1 bigEndian:true) printStringRadix:16. |
|
1550 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1551 |
" |
|
1552 |
||
1553 |
"Modified: / 21.1.1998 / 17:42:30 / cg" |
|
1554 |
"Created: / 5.3.1998 / 11:46:05 / stefan" |
|
1555 |
! |
|
1556 |
||
1557 |
unsignedLongAt:index put:value |
|
1558 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1559 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1560 |
The value should be in the range 0 to 16rFFFFFFFF |
1561 |
(for negative values, the stored value is not defined). |
|
1562 |
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
|
1563 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1564 |
Same as doubleWordAt:put: for protocol completeness" |
3323 | 1565 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1566 |
^ self doubleWordAt:index put:value |
3323 | 1567 |
|
1568 |
" |
|
1569 |
|b| |
|
1570 |
b := ByteArray new:4. |
|
1571 |
b unsignedLongAt:1 put:16r04030201. |
|
1572 |
b inspect |
|
1573 |
" |
|
1574 |
||
1575 |
"Created: / 5.3.1998 / 11:57:44 / stefan" |
|
1576 |
"Modified: / 5.3.1998 / 14:58:59 / stefan" |
|
1577 |
! |
|
1578 |
||
1579 |
unsignedLongAt:index put:aNumber bigEndian:msb |
|
1580 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1581 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1582 |
The value must be in the range 0 to 16rFFFFFFFF. |
1583 |
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
|
1584 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1585 |
Same as doubleWordAt:put:MSB: for protocol completeness" |
3323 | 1586 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1587 |
^ self doubleWordAt:index put:aNumber MSB:msb |
3323 | 1588 |
|
1589 |
" |
|
1590 |
|b| |
|
1591 |
b := ByteArray new:8. |
|
1592 |
b unsignedLongAt:1 put:16r04030201 bigEndian:true. |
|
1593 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1594 |
" |
|
1595 |
||
1596 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1597 |
"Created: / 5.3.1998 / 11:43:53 / stefan" |
|
1598 |
"Modified: / 5.3.1998 / 11:47:30 / stefan" |
|
3459 | 1599 |
! ! |
1600 |
||
1601 |
!UninterpretedBytes methodsFor:'accessing-shorts'! |
|
1602 |
||
1603 |
shortAt:index |
|
1604 |
"return the 2-bytes starting at index as a signed Integer. |
|
1605 |
The index is a smalltalk index (i.e. 1-based). |
|
1606 |
The value is retrieved in the machines natural byte order. |
|
1607 |
This may be worth a primitive. |
|
1608 |
This is the ST80 equivalent of #signedWordAt:" |
|
1609 |
||
1610 |
^ (self unsignedShortAt:index) signExtendedShortValue |
|
1611 |
||
1612 |
" |
|
1613 |
|b| |
|
1614 |
b := ByteArray new:2. |
|
1615 |
b unsignedShortAt:1 put:16rFFFF. |
|
1616 |
b shortAt:1 |
|
1617 |
" |
|
1618 |
||
1619 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
|
1620 |
"Created: / 5.3.1998 / 10:59:57 / stefan" |
|
1621 |
"Modified: / 5.3.1998 / 23:39:38 / stefan" |
|
3323 | 1622 |
! |
1623 |
||
3459 | 1624 |
shortAt:index bigEndian:msb |
1625 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1626 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1627 |
The value is retrieved MSB-first, if the msb-arg is true; |
1628 |
LSB-first otherwise. |
|
1629 |
This is the ST80 equivalent of #signedWordAt:" |
|
1630 |
||
1631 |
^ (self unsignedShortAt:index bigEndian:msb) signExtendedShortValue |
|
1632 |
||
1633 |
" |
|
1634 |
|b| |
|
1635 |
b := ByteArray new:2. |
|
1636 |
b unsignedShortAt:1 put:16rFFFF. |
|
1637 |
b shortAt:1 |
|
1638 |
" |
|
3323 | 1639 |
|
3459 | 1640 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
1641 |
"Created: / 5.3.1998 / 23:41:21 / stefan" |
|
1642 |
! |
|
1643 |
||
1644 |
shortAt:index put:value |
|
1645 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1646 |
The index is a smalltalk index (i.e. 1-based). |
|
1647 |
The stored value must be in the range -32768 .. +32676. |
|
1648 |
The value is stored in the machines natural byteorder. |
|
1649 |
This may be worth a primitive. |
|
1650 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1651 |
||
3323 | 1652 |
|
3459 | 1653 |
|v| |
1654 |
||
1655 |
value >= 0 ifTrue:[ |
|
4308 | 1656 |
v := value |
3323 | 1657 |
] ifFalse:[ |
4308 | 1658 |
v := 16r10000 + value |
3323 | 1659 |
]. |
3459 | 1660 |
self unsignedShortAt:index put:v. |
1661 |
^ value |
|
1662 |
||
1663 |
" |
|
1664 |
|b| |
|
1665 |
b := ByteArray new:6. |
|
1666 |
b shortAt:1 put:-1. |
|
1667 |
b shortAt:3 put:-2. |
|
1668 |
b shortAt:5 put:0. |
|
1669 |
b inspect |
|
1670 |
" |
|
1671 |
||
1672 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
|
1673 |
"Created: / 5.3.1998 / 11:02:05 / stefan" |
|
1674 |
! |
|
1675 |
||
1676 |
signedWordAt:index |
|
1677 |
"return the 2-bytes starting at index as a signed Integer. |
|
1678 |
The index is a smalltalk index (i.e. 1-based). |
|
1679 |
The value is retrieved in the machines natural byte order. |
|
1680 |
This may be worth a primitive." |
|
1681 |
||
1682 |
^ (self wordAt:index) signExtendedShortValue |
|
3323 | 1683 |
|
1684 |
" |
|
1685 |
|b| |
|
3459 | 1686 |
b := ByteArray new:2. |
1687 |
b wordAt:1 put:16rFFFF. |
|
1688 |
b signedWordAt:1 |
|
3323 | 1689 |
" |
1690 |
||
3459 | 1691 |
"Modified: 1.7.1996 / 21:14:38 / cg" |
3323 | 1692 |
! |
1693 |
||
3459 | 1694 |
signedWordAt:index MSB:msb |
1695 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1696 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1697 |
The value is retrieved MSB-first if the msb-arg is true, |
1698 |
LSB-first otherwise. |
|
1699 |
This may be worth a primitive." |
|
3323 | 1700 |
|
3459 | 1701 |
^ (self wordAt:index MSB:msb) signExtendedShortValue |
3323 | 1702 |
|
1703 |
" |
|
1704 |
|b| |
|
3459 | 1705 |
b := ByteArray new:2. |
1706 |
b wordAt:1 put:16r0080. |
|
1707 |
b signedWordAt:1 MSB:true. |
|
1708 |
b signedWordAt:1 MSB:false. |
|
1709 |
" |
|
1710 |
||
1711 |
"Modified: 1.7.1996 / 21:15:57 / cg" |
|
1712 |
! |
|
1713 |
||
1714 |
signedWordAt:index put:value |
|
1715 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1716 |
The index is a smalltalk index (i.e. 1-based). |
|
1717 |
The stored value must be in the range -32768 .. +32676. |
|
1718 |
The value is stored in the machines natural byteorder. |
|
1719 |
This may be worth a primitive. |
|
1720 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1721 |
||
1722 |
||
1723 |
|v| |
|
1724 |
||
1725 |
value >= 0 ifTrue:[ |
|
4308 | 1726 |
v := value |
3459 | 1727 |
] ifFalse:[ |
4308 | 1728 |
v := 16r10000 + value |
3459 | 1729 |
]. |
1730 |
self unsignedShortAt:index put:v. |
|
1731 |
^ value |
|
1732 |
||
1733 |
" |
|
1734 |
|b| |
|
1735 |
b := ByteArray new:6. |
|
1736 |
b shortAt:1 put:-1. |
|
1737 |
b shortAt:3 put:-2. |
|
1738 |
b shortAt:5 put:0. |
|
3323 | 1739 |
b inspect |
1740 |
" |
|
1741 |
||
3459 | 1742 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
1743 |
"Modified: / 5.3.1998 / 11:01:30 / stefan" |
|
1744 |
! |
|
1745 |
||
1746 |
signedWordAt:index put:value MSB:msb |
|
1747 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1748 |
The index is a smalltalk index (i.e. 1-based). |
|
1749 |
The stored value must be in the range -32768 .. +32676. |
|
1750 |
The value is stored MSB-first, if the msb-arg is true; |
|
1751 |
LSB-first otherwise. |
|
1752 |
This may be worth a primitive." |
|
1753 |
||
1754 |
|v| |
|
1755 |
||
1756 |
value >= 0 ifTrue:[ |
|
1757 |
v := value |
|
1758 |
] ifFalse:[ |
|
1759 |
v := 16r10000 + value |
|
1760 |
]. |
|
1761 |
self wordAt:index put:v MSB:msb. |
|
1762 |
^ value |
|
1763 |
||
1764 |
" |
|
1765 |
|b| |
|
1766 |
b := ByteArray new:4. |
|
1767 |
b signedWordAt:1 put:-1. |
|
1768 |
b signedWordAt:3 put:-2. |
|
1769 |
b inspect |
|
1770 |
" |
|
1771 |
||
1772 |
"Modified: 1.7.1996 / 21:12:13 / cg" |
|
3323 | 1773 |
! |
1774 |
||
1775 |
unsignedShortAt:index |
|
1776 |
"return the 2-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 in the machines natural byte order |
1779 |
Subclasses may redefine this for better performance. |
|
1780 |
This is the ST80 equivalent of #wordAt:" |
|
1781 |
||
1782 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1783 |
^ self unsignedShortAt:index bigEndian:(UninterpretedBytes isBigEndian) |
3323 | 1784 |
|
1785 |
"Created: / 5.3.1998 / 11:38:25 / stefan" |
|
1786 |
"Modified: / 5.3.1998 / 14:59:25 / stefan" |
|
1787 |
! |
|
1788 |
||
1789 |
unsignedShortAt:index bigEndian:msb |
|
1790 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1791 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1792 |
The value is retrieved MSB-first (high 8 bits at lower index) if msb is true; |
1793 |
LSB-first (i.e. low 8-bits at lower byte index) if its false)" |
|
1794 |
||
1795 |
|b1 "{ Class: SmallInteger }" |
|
1796 |
b2 "{ Class: SmallInteger }"| |
|
1797 |
||
1798 |
b1 := self at:index. |
|
1799 |
b2 := self at:(index + 1). |
|
1800 |
msb ifTrue:[ |
|
4308 | 1801 |
^ (b1 bitShift:8) + b2 |
3323 | 1802 |
]. |
1803 |
^ (b2 bitShift:8) + b1 |
|
1804 |
||
1805 |
"Modified: / 21.1.1998 / 17:46:07 / cg" |
|
1806 |
"Created: / 5.3.1998 / 11:49:29 / stefan" |
|
1807 |
! |
|
1808 |
||
1809 |
unsignedShortAt:index put:value |
|
1810 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1811 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1812 |
The stored value must be in the range 0 .. 16rFFFF. |
1813 |
The value is stored in the machines natural byteorder." |
|
1814 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1815 |
^ self unsignedShortAt:index put:value bigEndian:(UninterpretedBytes isBigEndian) |
3323 | 1816 |
|
1817 |
" |
|
1818 |
|b| |
|
1819 |
b := ByteArray new:4. |
|
1820 |
b unsignedShortAt:1 put:16r0102. |
|
1821 |
b unsignedShortAt:3 put:16r0304. |
|
1822 |
b inspect |
|
1823 |
" |
|
1824 |
||
1825 |
"Created: / 5.3.1998 / 11:54:52 / stefan" |
|
1826 |
"Modified: / 5.3.1998 / 14:59:38 / stefan" |
|
1827 |
! |
|
1828 |
||
1829 |
unsignedShortAt:index put:value bigEndian:msb |
|
1830 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1831 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1832 |
The stored value must be in the range 0 .. 16rFFFF. |
1833 |
The value is stored LSB-first (i.e. the low 8bits are stored at the |
|
1834 |
lower index) if msb is false, MSB-first otherwise" |
|
1835 |
||
1836 |
|b1 b2 |
|
1837 |
iVal "{ Class: SmallInteger }"| |
|
1838 |
||
1839 |
iVal := value. |
|
1840 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
|
4308 | 1841 |
^ self elementBoundsError |
3323 | 1842 |
]. |
1843 |
msb ifTrue:[ |
|
4308 | 1844 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
1845 |
b2 := (iVal bitAnd:16rFF). |
|
3323 | 1846 |
] ifFalse:[ |
4308 | 1847 |
b1 := (iVal bitAnd:16rFF). |
1848 |
b2 := ((iVal bitShift:-8) bitAnd:16rFF). |
|
3323 | 1849 |
]. |
1850 |
self at:index put:b1. |
|
1851 |
self at:index+1 put:b2. |
|
1852 |
^ value |
|
1853 |
||
1854 |
" |
|
1855 |
|b| |
|
1856 |
b := ByteArray new:8. |
|
1857 |
b unsignedShortAt:1 put:16r0102 bigEndian:false. |
|
1858 |
b unsignedShortAt:3 put:16r0304 bigEndian:false. |
|
1859 |
b unsignedShortAt:5 put:16r0102 bigEndian:true. |
|
1860 |
b unsignedShortAt:7 put:16r0304 bigEndian:true. |
|
1861 |
b inspect |
|
1862 |
" |
|
1863 |
||
1864 |
"Modified: / 21.1.1998 / 17:48:15 / cg" |
|
1865 |
"Modified: / 5.3.1998 / 11:52:28 / stefan" |
|
1866 |
! |
|
1867 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1868 |
wordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1869 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 1870 |
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
|
1871 |
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
|
1872 |
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
|
1873 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1874 |
^ self wordAt:index MSB:(UninterpretedBytes isBigEndian) |
3323 | 1875 |
|
1876 |
"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
|
1877 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1878 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1879 |
wordAt:index MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1880 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 1881 |
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
|
1882 |
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
|
1883 |
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
|
1884 |
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
|
1885 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1886 |
|b1 "{ Class: SmallInteger }" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1887 |
b2 "{ Class: SmallInteger }"| |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1888 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1889 |
b1 := self at:index. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1890 |
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
|
1891 |
msb ifTrue:[ |
4308 | 1892 |
^ (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
|
1893 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1894 |
^ (b2 bitShift:8) + b1 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1895 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1896 |
"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
|
1897 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1898 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1899 |
wordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1900 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 1901 |
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
|
1902 |
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
|
1903 |
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
|
1904 |
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
|
1905 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1906 |
^ 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
|
1907 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1908 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1909 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1910 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1911 |
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
|
1912 |
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
|
1913 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1914 |
" |
3323 | 1915 |
|
1916 |
"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
|
1917 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1918 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1919 |
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
|
1920 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 1921 |
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
|
1922 |
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
|
1923 |
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
|
1924 |
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
|
1925 |
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
|
1926 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1927 |
|b1 b2 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1928 |
iVal "{ Class: SmallInteger }"| |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1929 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1930 |
iVal := value. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1931 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
4308 | 1932 |
^ self elementBoundsError |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1933 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1934 |
msb ifTrue:[ |
4308 | 1935 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
1936 |
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
|
1937 |
] ifFalse:[ |
4308 | 1938 |
b1 := (iVal bitAnd:16rFF). |
1939 |
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
|
1940 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1941 |
self at:index put:b1. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1942 |
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
|
1943 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1944 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1945 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1946 |
b := ByteArray new:8. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1947 |
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
|
1948 |
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
|
1949 |
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
|
1950 |
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
|
1951 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1952 |
" |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1953 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1954 |
"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
|
1955 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1956 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1957 |
wordAtWordIndex:index |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1958 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1959 |
Fetching in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1960 |
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
|
1961 |
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
|
1962 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1963 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1964 |
^ self wordAtWordIndex:index MSB:(UninterpretedBytes isBigEndian) |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1965 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1966 |
"Created: / 21.1.1998 / 17:48:26 / cg" |
3323 | 1967 |
"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
|
1968 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1969 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1970 |
wordAtWordIndex:index MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1971 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1972 |
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
|
1973 |
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
|
1974 |
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
|
1975 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1976 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1977 |
^ 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
|
1978 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1979 |
"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
|
1980 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1981 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1982 |
wordAtWordIndex:index put:value |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1983 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1984 |
Storing in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1985 |
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
|
1986 |
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
|
1987 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1988 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1989 |
^ 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
|
1990 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1991 |
"Created: / 21.1.1998 / 17:48:34 / cg" |
3323 | 1992 |
"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
|
1993 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1994 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1995 |
wordAtWordIndex:index put:value MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1996 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1997 |
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
|
1998 |
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
|
1999 |
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
|
2000 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2001 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2002 |
^ 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
|
2003 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2004 |
"Created: / 21.1.1998 / 17:48:38 / cg" |
3459 | 2005 |
! ! |
2006 |
||
2007 |
!UninterpretedBytes methodsFor:'accessing-strings'! |
|
2008 |
||
2009 |
stringAt:index |
|
2010 |
"return a string starting at index up to the 0-byte. |
|
2011 |
The index is a smalltalk index (i.e. 1-based)." |
|
2012 |
||
2013 |
|stream i "{ Class: SmallInteger }" c| |
|
2014 |
||
2015 |
stream := WriteStream on:''. |
|
2016 |
i := index. |
|
2017 |
[(c := self basicAt:i) ~~ 0] whileTrue:[ |
|
4308 | 2018 |
stream nextPut:(Character value:c). |
2019 |
i := i + 1. |
|
3459 | 2020 |
]. |
2021 |
^ stream contents |
|
2022 |
||
2023 |
"Created: / 21.1.1998 / 17:44:50 / cg" |
|
2024 |
! |
|
2025 |
||
2026 |
stringAt:index put:aString |
|
2027 |
"copy aString to the externalBytes, starting at index up to |
|
2028 |
(and including) the 0-byte. |
|
2029 |
The index is a smalltalk index (i.e. 1-based)." |
|
2030 |
||
2031 |
|i "{ Class: SmallInteger }"| |
|
2032 |
||
2033 |
i := index. |
|
2034 |
aString do:[:aChar | |
|
4308 | 2035 |
self basicAt:i put:aChar asciiValue. |
2036 |
i := i + 1. |
|
3459 | 2037 |
]. |
2038 |
self basicAt:i put:0. |
|
2039 |
^ aString |
|
2040 |
||
2041 |
" |
|
2042 |
|bytes| |
|
2043 |
||
2044 |
bytes := ExternalBytes new:10. |
|
2045 |
bytes stringAt:1 put:'hello'. |
|
2046 |
1 to:bytes size do:[:i | |
|
4308 | 2047 |
Transcript showCR:(bytes at:i) |
3459 | 2048 |
] |
2049 |
" |
|
2050 |
||
2051 |
"Created: / 21.1.1998 / 17:45:02 / cg" |
|
2052 |
! |
|
2053 |
||
2054 |
stringAt:index size:maxSize |
|
2055 |
"return a string starting at index up to maxSize, or a 0-byte. |
|
2056 |
The index is a smalltalk index (i.e. 1-based)." |
|
2057 |
||
2058 |
|stream c i "{ Class: SmallInteger }"| |
|
2059 |
||
2060 |
stream := WriteStream on:(String new:maxSize). |
|
2061 |
i := index. |
|
2062 |
[(i <= maxSize) |
|
2063 |
and:[(c := self basicAt:i) ~~ 0]] whileTrue:[ |
|
4308 | 2064 |
stream nextPut:(Character value:c). |
2065 |
i := i + 1. |
|
3459 | 2066 |
]. |
2067 |
^ stream contents |
|
2068 |
||
2069 |
"Modified: / 21.1.1998 / 17:45:23 / cg" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2070 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2071 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2072 |
zeroByteStringAt:index maximumSize:count |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2073 |
"extract a zeroByte-delimited string, given initial index and |
3433 | 2074 |
maximum number of characters (bytes). |
2075 |
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
|
2076 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2077 |
|bytes idx| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2078 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2079 |
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
|
2080 |
idx := bytes indexOf:0. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2081 |
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
|
2082 |
^ bytes asString |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2083 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2084 |
"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
|
2085 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2086 |
|
4782 | 2087 |
!UninterpretedBytes methodsFor:'filling & replacing'! |
2088 |
||
2089 |
replaceBytesFrom:start to:stop with:sourceBytes startingAt:sourceIndex |
|
7193
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2090 |
self replaceFrom:start to:stop with:sourceBytes startingAt:sourceIndex |
4782 | 2091 |
|
7193
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2092 |
"/ |srcIdx| |
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2093 |
"/ |
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2094 |
"/ srcIdx := sourceIndex. |
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2095 |
"/ start to:stop do:[:dstIdx | |
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2096 |
"/ self at:dstIdx put:(sourceBytes at:srcIdx). |
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2097 |
"/ srcIdx := srcIdx + 1 |
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2098 |
"/ ]. |
4782 | 2099 |
! ! |
2100 |
||
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2101 |
!UninterpretedBytes methodsFor:'misc'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2102 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2103 |
swapLongAt:byteIndex |
3433 | 2104 |
"swap the byteOrder of a long. |
2105 |
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
|
2106 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2107 |
|t| |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2108 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2109 |
t := self byteAt:byteIndex. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2110 |
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
|
2111 |
self byteAt:(byteIndex + 3) put:t. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2112 |
t := self byteAt:(byteIndex + 1). |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2113 |
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
|
2114 |
self byteAt:(byteIndex + 2) put:t |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2115 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2116 |
"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
|
2117 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2118 |
|
3323 | 2119 |
!UninterpretedBytes methodsFor:'queries'! |
2120 |
||
2121 |
sizeInBytes |
|
2122 |
"return the number of 8-bit bytes in the receiver. |
|
2123 |
This is needed since subclasse may redefine #size (TwoByteString)" |
|
2124 |
||
2125 |
^ super size |
|
2126 |
||
2127 |
"Created: / 5.3.1998 / 10:41:13 / stefan" |
|
2128 |
! ! |
|
2129 |
||
695 | 2130 |
!UninterpretedBytes class methodsFor:'documentation'! |
2131 |
||
2132 |
version |
|
7193
6cccc65453b6
replaceBytes:... -> replace:...
Claus Gittinger <cg@exept.de>
parents:
6885
diff
changeset
|
2133 |
^ '$Header: /cvs/stx/stx/libbasic/UninterpretedBytes.st,v 1.43 2003-04-10 23:08:52 cg Exp $' |
695 | 2134 |
! ! |