author | Stefan Vogel <sv@exept.de> |
Fri, 19 Dec 2003 19:55:04 +0100 | |
changeset 7814 | c649ba9fd538 |
parent 7813 | 3cc0b75d1684 |
child 7815 | 6bd3a60a6f0c |
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 |
||
3207
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merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
15 |
ArrayedCollection subclass:#UninterpretedBytes |
1266 | 16 |
instanceVariableNames:'' |
3323 | 17 |
classVariableNames:'IsBigEndian' |
1266 | 18 |
poolDictionaries:'' |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
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 |
! ! |
|
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 |
" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
77 |
UninterpretedBytes provides the common protocol for byte-storage |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
1294
diff
changeset
|
78 |
containers; concrete subclasses are |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
79 |
ByteArray (which store the bytes within the |
4308 | 80 |
Smalltalk object memory) |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
81 |
and |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
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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added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
104 |
!UninterpretedBytes class methodsFor:'instance creation'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
105 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
106 |
from:aCollection |
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added #from: and #swapLongAt: for ST80 compatibility.
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parents:
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diff
changeset
|
107 |
^ ByteArray from:aCollection |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
108 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
109 |
"Created: / 3.4.1998 / 13:29:50 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
110 |
"Modified: / 3.4.1998 / 13:30:12 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
111 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
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
c9284ca27a4a
tuned some doubleWordAt methods;
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parents:
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diff
changeset
|
118 |
I.e. false for vax, intel; true for m68k, sun. |
c9284ca27a4a
tuned some doubleWordAt methods;
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parents:
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diff
changeset
|
119 |
|
c9284ca27a4a
tuned some doubleWordAt methods;
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parents:
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diff
changeset
|
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
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
156 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
157 |
isBuiltInClass |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
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:
1294
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 |
||
7813 | 690 |
|v| |
3459 | 691 |
|
7813 | 692 |
v := anInteger. |
693 |
anInteger < 0 ifTrue:[ |
|
694 |
v := v + 16r10000000000000000 |
|
695 |
]. |
|
696 |
^ self unsignedLongLongAt:byteIndex put:v |
|
3459 | 697 |
! |
698 |
||
699 |
longLongAt:byteIndex put:anInteger bigEndian:msb |
|
700 |
"store a signed longLong (64bit) integer. |
|
701 |
The index is a smalltalk index (i.e. 1-based). |
|
702 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
703 |
||
704 |
|v| |
|
705 |
||
706 |
v := anInteger. |
|
707 |
anInteger < 0 ifTrue:[ |
|
4308 | 708 |
v := v + 16r10000000000000000 |
3459 | 709 |
]. |
710 |
^ self unsignedLongLongAt:byteIndex put:v bigEndian:msb |
|
711 |
||
712 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
713 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
714 |
! |
|
715 |
||
716 |
quadWordAt:index MSB:msb |
|
717 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
718 |
The index is a smalltalk index (i.e. 1-based). |
|
719 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
720 |
||
721 |
|l |
|
722 |
bIdx "{ Class: SmallInteger }" |
|
723 |
delta "{ Class: SmallInteger }"| |
|
724 |
||
725 |
l := LargeInteger basicNew numberOfDigits:8. |
|
726 |
msb ifTrue:[ |
|
4308 | 727 |
bIdx := index + 7. |
728 |
delta := -1 |
|
3459 | 729 |
] ifFalse:[ |
4308 | 730 |
bIdx := index. |
731 |
delta := 1 |
|
3459 | 732 |
]. |
733 |
1 to:8 do:[:i | |
|
4308 | 734 |
l digitAt:i put:(self basicAt:bIdx). |
735 |
bIdx := bIdx + delta |
|
3459 | 736 |
]. |
737 |
^ l compressed |
|
738 |
||
739 |
" |
|
740 |
|b| |
|
741 |
||
742 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
743 |
(b quadWordAt:1 MSB:false) printStringRadix:16 |
|
744 |
" |
|
745 |
||
746 |
"Modified: 5.11.1996 / 14:06:21 / cg" |
|
747 |
! |
|
748 |
||
749 |
quadWordAt:index put:anInteger MSB:msb |
|
750 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
751 |
The index is a smalltalk index (i.e. 1-based). |
|
752 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
753 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
754 |
||
755 |
|bIdx "{ Class: SmallInteger }" |
|
756 |
delta "{ Class: SmallInteger }"| |
|
757 |
||
758 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
759 |
^ self elementBoundsError:anInteger |
3459 | 760 |
]. |
761 |
||
762 |
msb ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
763 |
bIdx := index + 7. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
764 |
delta := -1 |
3459 | 765 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
766 |
bIdx := index. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
767 |
delta := 1 |
3459 | 768 |
]. |
769 |
1 to:8 do:[:i | |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
770 |
self basicAt:bIdx put:(anInteger digitAt:i). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
771 |
bIdx := bIdx + delta. |
3459 | 772 |
]. |
773 |
^ anInteger |
|
774 |
||
775 |
" |
|
776 |
|b| |
|
777 |
b := ByteArray new:8. |
|
778 |
b quadWordAtIndex:1 put:16r0807060504030201 MSB:false. |
|
779 |
b inspect |
|
780 |
" |
|
781 |
! |
|
782 |
||
783 |
unsignedLongLongAt:index bigEndian:msb |
|
784 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
785 |
The index is a smalltalk index (i.e. 1-based). |
|
786 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
787 |
||
788 |
|l |
|
789 |
bIdx "{ Class: SmallInteger }" |
|
790 |
delta "{ Class: SmallInteger }"| |
|
791 |
||
792 |
l := LargeInteger basicNew numberOfDigits:8. |
|
793 |
msb ifTrue:[ |
|
4308 | 794 |
bIdx := index + 7. |
795 |
delta := -1 |
|
3459 | 796 |
] ifFalse:[ |
4308 | 797 |
bIdx := index. |
798 |
delta := 1 |
|
3459 | 799 |
]. |
800 |
1 to:8 do:[:i | |
|
4308 | 801 |
l digitAt:i put:(self basicAt:bIdx). |
802 |
bIdx := bIdx + delta |
|
3459 | 803 |
]. |
804 |
^ l compressed |
|
805 |
||
806 |
" |
|
807 |
|b| |
|
808 |
||
809 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
810 |
(b unsignedLongLongAt:1 bigEndian:false) printStringRadix:16 |
|
811 |
" |
|
812 |
||
813 |
"Modified: / 5.11.1996 / 14:06:21 / cg" |
|
814 |
"Modified: / 5.3.1998 / 14:04:44 / stefan" |
|
815 |
! |
|
816 |
||
817 |
unsignedLongLongAt:index put:anInteger |
|
818 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
819 |
The index is a smalltalk index (i.e. 1-based). |
|
820 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
821 |
The value is stored in natural byte order." |
|
822 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
823 |
^ self unsignedLongLongAt:index put:anInteger bigEndian:(UninterpretedBytes isBigEndian) |
3459 | 824 |
|
825 |
"Created: / 5.3.1998 / 14:44:00 / stefan" |
|
826 |
"Modified: / 5.3.1998 / 15:02:32 / stefan" |
|
827 |
! |
|
828 |
||
829 |
unsignedLongLongAt:index put:anInteger bigEndian:msb |
|
830 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
831 |
The index is a smalltalk index (i.e. 1-based). |
|
832 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
833 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
834 |
||
835 |
|bIdx "{ Class: SmallInteger }" |
|
836 |
delta "{ Class: SmallInteger }"| |
|
837 |
||
838 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
839 |
^ self elementBoundsError:anInteger |
3459 | 840 |
]. |
841 |
||
842 |
msb ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
843 |
bIdx := index + 7. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
844 |
delta := -1 |
3459 | 845 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
846 |
bIdx := index. |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
847 |
delta := 1 |
3459 | 848 |
]. |
849 |
1 to:8 do:[:i | |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
850 |
self basicAt:bIdx put:(anInteger digitAt:i). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
851 |
bIdx := bIdx + delta. |
3459 | 852 |
]. |
853 |
^ anInteger |
|
854 |
||
855 |
" |
|
856 |
|b| |
|
857 |
b := ByteArray new:8. |
|
858 |
b unsignedLongLongAt:1 put:16r0807060504030201 bigEndian:false. |
|
859 |
b inspect |
|
860 |
" |
|
861 |
||
862 |
"Created: / 5.3.1998 / 14:06:02 / stefan" |
|
863 |
! ! |
|
864 |
||
865 |
!UninterpretedBytes methodsFor:'accessing-longs'! |
|
866 |
||
867 |
doubleWordAt:index |
|
868 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
869 |
The index is a smalltalk index (i.e. 1-based). |
|
4515 | 870 |
The value is retrieved in the machines natural byte order." |
3459 | 871 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
872 |
^ self doubleWordAt:index MSB:(UninterpretedBytes isBigEndian) |
3459 | 873 |
|
874 |
" |
|
875 |
|b| |
|
876 |
||
877 |
b := ByteArray withAll:#(1 2 3 4). |
|
878 |
(b doubleWordAt:1) printStringRadix:16 |
|
879 |
" |
|
880 |
||
881 |
"Modified: / 5.3.1998 / 14:57:35 / stefan" |
|
882 |
! |
|
883 |
||
884 |
doubleWordAt:index MSB:msb |
|
885 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
886 |
The index is a smalltalk index (i.e. 1-based). |
|
887 |
The value is retrieved MSB-first, if the msb-arg is true; |
|
4515 | 888 |
LSB-first otherwise." |
3459 | 889 |
|
890 |
|val |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
891 |
ival "{ Class: SmallInteger }" |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
892 |
t "{ Class: SmallInteger }" |
3459 | 893 |
i "{ Class: SmallInteger }" |
894 |
b1 "{ Class: SmallInteger }" |
|
895 |
b2 "{ Class: SmallInteger }" |
|
896 |
b3 "{ Class: SmallInteger }" |
|
897 |
b4 "{ Class: SmallInteger }"| |
|
898 |
||
4019
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 |
/* |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
901 |
* handle the most common cases fast ... |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
902 |
*/ |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
903 |
if (__isSmallInteger(index)) { |
4515 | 904 |
unsigned char *cp; |
905 |
int sz; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
906 |
|
4515 | 907 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
908 |
if (cp) { |
|
909 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
910 |
unsigned int iVal; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
911 |
|
4515 | 912 |
if ((idx+(sizeof(int)-1)) < sz) { |
913 |
cp += idx; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
914 |
|
4515 | 915 |
if (msb == true) { |
4275 | 916 |
#if defined(__MSBFIRST) || defined(sparc) |
4515 | 917 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
918 |
/* |
|
919 |
* aligned |
|
920 |
*/ |
|
921 |
iVal = ((unsigned int *)cp)[0]; |
|
922 |
} else |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
923 |
#endif |
4515 | 924 |
{ |
925 |
iVal = cp[0]; |
|
926 |
iVal = (iVal << 8) | cp[1]; |
|
927 |
iVal = (iVal << 8) | cp[2]; |
|
928 |
iVal = (iVal << 8) | cp[3]; |
|
929 |
} |
|
930 |
} else { |
|
4308 | 931 |
#if defined(i386) || (defined(UNALIGNED_FETCH_OK) && defined(__LSBFIRST)) |
4515 | 932 |
/* |
933 |
* aligned or not - we dont care |
|
934 |
* (i386 can fetch unaligned) |
|
935 |
*/ |
|
936 |
iVal = ((unsigned int *)cp)[0]; |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
937 |
#else |
4308 | 938 |
# if defined(__LSBFIRST) || defined(i386) |
4515 | 939 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
940 |
/* |
|
941 |
* aligned |
|
942 |
*/ |
|
943 |
iVal = ((unsigned int *)cp)[0]; |
|
944 |
} else |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
945 |
# endif |
4515 | 946 |
{ |
947 |
iVal = cp[3]; |
|
948 |
iVal = (iVal << 8) | cp[2]; |
|
949 |
iVal = (iVal << 8) | cp[1]; |
|
950 |
iVal = (iVal << 8) | cp[0]; |
|
951 |
} |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
952 |
#endif |
4515 | 953 |
} |
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
954 |
#ifdef alpha64 |
4515 | 955 |
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
|
956 |
#else |
4515 | 957 |
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
|
958 |
#endif |
4515 | 959 |
} |
960 |
} |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
961 |
} |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
962 |
%}. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
963 |
|
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
964 |
"/ fallBack code - non ByteArray-like receiver |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
965 |
"/ or funny index |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
966 |
|
3459 | 967 |
i := index. |
968 |
b1 := self at:i. |
|
969 |
b2 := self at:(i+1). |
|
970 |
b3 := self at:(i+2). |
|
971 |
b4 := self at:(i+3). |
|
972 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
973 |
msb ifFalse:[ |
4515 | 974 |
t := b4. b4 := b1. b1 := t. |
975 |
t := b3. b3 := b2. b2 := t. |
|
3459 | 976 |
]. |
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
977 |
ival := b1. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
978 |
ival := (ival bitShift:8) + b2. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
979 |
ival := (ival bitShift:8) + b3. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
980 |
val := (ival bitShift:8) + b4. |
3459 | 981 |
^ val |
982 |
||
983 |
" |
|
984 |
|b| |
|
985 |
||
986 |
b := ByteArray withAll:#(1 2 3 4). |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
987 |
(b doubleWordAt:1 MSB:true) printStringRadix:16. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
988 |
(b doubleWordAt:1 MSB:false) printStringRadix:16 |
3459 | 989 |
" |
990 |
||
991 |
! |
|
992 |
||
993 |
doubleWordAt:index put:value |
|
994 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
995 |
The index is a smalltalk index (i.e. 1-based). |
|
996 |
The value should be in the range 0 to 16rFFFFFFFF |
|
997 |
(for negative values, the stored value is not defined). |
|
4515 | 998 |
The value is stored in the machines natural byte order." |
3459 | 999 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1000 |
^ self doubleWordAt:index put:value MSB:(UninterpretedBytes isBigEndian) |
3459 | 1001 |
|
1002 |
" |
|
1003 |
|b| |
|
1004 |
b := ByteArray new:4. |
|
1005 |
b doubleWordAt:1 put:16r04030201. |
|
1006 |
b inspect |
|
1007 |
" |
|
1008 |
||
1009 |
"Modified: / 5.3.1998 / 14:57:48 / stefan" |
|
1010 |
! |
|
1011 |
||
1012 |
doubleWordAt:index put:aNumber MSB:msb |
|
1013 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
1014 |
The index is a smalltalk index (i.e. 1-based). |
|
1015 |
The value must be in the range 0 to 16rFFFFFFFF. |
|
4515 | 1016 |
The value is stored MSB-first if msb is true; LSB-first otherwise." |
3459 | 1017 |
|
1018 |
|i "{ Class: SmallInteger }" | |
|
1019 |
||
1020 |
((aNumber < 0) or:[aNumber > 16rFFFFFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1021 |
^ self elementBoundsError:aNumber |
3459 | 1022 |
]. |
1023 |
||
1024 |
i := index. |
|
1025 |
msb ifTrue:[ |
|
4515 | 1026 |
self at:i put:(aNumber digitAt:4). |
1027 |
self at:(i+1) put:(aNumber digitAt:3). |
|
1028 |
self at:(i+2) put:(aNumber digitAt:2). |
|
1029 |
self at:(i+3) put:(aNumber digitAt:1). |
|
3459 | 1030 |
] ifFalse:[ |
4515 | 1031 |
self at:i put:(aNumber digitAt:1). |
1032 |
self at:(i+1) put:(aNumber digitAt:2). |
|
1033 |
self at:(i+2) put:(aNumber digitAt:3). |
|
1034 |
self at:(i+3) put:(aNumber digitAt:4). |
|
3459 | 1035 |
]. |
1036 |
^ aNumber |
|
1037 |
||
1038 |
" |
|
1039 |
|b| |
|
1040 |
b := ByteArray new:8. |
|
1041 |
b doubleWordAt:1 put:16r04030201 MSB:true. |
|
1042 |
b doubleWordAt:5 put:16r04030201 MSB:false. |
|
1043 |
b inspect |
|
1044 |
" |
|
1045 |
||
1046 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1047 |
"Modified: / 5.3.1998 / 11:42:17 / stefan" |
|
1048 |
! |
|
1049 |
||
1050 |
doubleWordAtDoubleWordIndex:index |
|
1051 |
"return the unsigned long at index, anInteger. |
|
1052 |
Fetching in the machines natural byte order. |
|
1053 |
Indices are 1-based and scaled as appropriate to allow |
|
1054 |
accessing the memory as an array of doubleWord entries. |
|
1055 |
(i.e. indices are 1, 2, ...)" |
|
1056 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1057 |
^ self doubleWordAtDoubleWordIndex:index MSB:(UninterpretedBytes isBigEndian) |
3459 | 1058 |
|
1059 |
"Created: / 21.1.1998 / 17:43:53 / cg" |
|
1060 |
"Modified: / 5.3.1998 / 14:58:06 / stefan" |
|
1061 |
! |
|
1062 |
||
1063 |
doubleWordAtDoubleWordIndex:index MSB:msb |
|
1064 |
"return the unsigned long at index, anInteger. |
|
1065 |
Fetching is MSB if msb is true, LSB otherwise. |
|
1066 |
Indices are 1-based and scaled as appropriate to allow |
|
1067 |
accessing the memory as an array of doubleWord entries. |
|
1068 |
(i.e. indices are 1, 2, ...)" |
|
1069 |
||
1070 |
^ self doubleWordAt:(index - 1 * 4 + 1) MSB:msb |
|
1071 |
||
1072 |
"Created: / 21.1.1998 / 17:44:07 / cg" |
|
1073 |
! |
|
1074 |
||
1075 |
doubleWordAtDoubleWordIndex:index put:value |
|
1076 |
"set the long at index, anInteger. |
|
1077 |
Storing in the machines natural byte order. |
|
1078 |
Indices are 1-based and scaled as appropriate to allow |
|
1079 |
accessing the memory as an array of doubleWord entries. |
|
1080 |
(i.e. indices are 1, 2, ...)" |
|
1081 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1082 |
^ self doubleWordAtDoubleWordIndex:index put:value MSB:(UninterpretedBytes isBigEndian) |
3459 | 1083 |
|
1084 |
"Created: / 21.1.1998 / 17:44:13 / cg" |
|
1085 |
"Modified: / 5.3.1998 / 14:58:19 / stefan" |
|
1086 |
! |
|
1087 |
||
1088 |
doubleWordAtDoubleWordIndex:index put:value MSB:msb |
|
1089 |
"set the long at index, anInteger. |
|
1090 |
Storing is MSB if msb is true, LSB otherwise. |
|
1091 |
Indices are 1-based and scaled as appropriate to allow |
|
1092 |
accessing the memory as an array of doubleWord entries. |
|
1093 |
(i.e. indices are 1, 2, ...)" |
|
1094 |
||
1095 |
^ self doubleWordAt:(index - 1 * 4 + 1) put:value MSB:msb |
|
1096 |
||
1097 |
"Created: / 21.1.1998 / 17:44:19 / cg" |
|
3323 | 1098 |
! |
1099 |
||
1100 |
longAt:index |
|
1101 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1102 |
The index is a smalltalk index (i.e. 1-based). |
4308 | 1103 |
The value is retrieved in the machines natural byte order, |
1104 |
therefore, this should only be used for byte-data which is |
|
1105 |
only used inside this machine. |
|
1106 |
To setup data packets which are to be sent to other machines, |
|
1107 |
or stored into a file, always use longAt:MSB: and specify |
|
1108 |
a definite byteOrder." |
|
3323 | 1109 |
|
1110 |
|w| |
|
1111 |
||
3434 | 1112 |
%{ |
1113 |
/* |
|
1114 |
* handle the most common cases fast ... |
|
1115 |
*/ |
|
1116 |
if (__isSmallInteger(index)) { |
|
4308 | 1117 |
unsigned char *cp; |
1118 |
int sz; |
|
3434 | 1119 |
|
4308 | 1120 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1121 |
if (cp) { |
|
1122 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 1123 |
|
4308 | 1124 |
if ((idx+(sizeof(int)-1)) < sz) { |
1125 |
cp += idx; |
|
1126 |
#if defined(i386) |
|
1127 |
/* |
|
1128 |
* aligned or not, we dont care (i386 can do both) |
|
1129 |
*/ |
|
1130 |
{ |
|
1131 |
int iVal = ((int *)cp)[0]; |
|
3434 | 1132 |
|
4308 | 1133 |
RETURN (__MKINT(iVal)); |
1134 |
} |
|
1135 |
#else |
|
1136 |
/* |
|
1137 |
* aligned |
|
1138 |
*/ |
|
1139 |
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
|
1140 |
int iVal = ((int *)cp)[0]; |
4308 | 1141 |
|
4312
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1142 |
# ifdef alpha64 |
63eb0ccfd909
no need to call MKINT / MKUINT for 4-byte ints on alpha64
Claus Gittinger <cg@exept.de>
parents:
4308
diff
changeset
|
1143 |
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
|
1144 |
# else |
4308 | 1145 |
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
|
1146 |
# endif |
4308 | 1147 |
} |
1148 |
#endif |
|
1149 |
} |
|
1150 |
} |
|
3434 | 1151 |
} |
1152 |
%}. |
|
1153 |
||
3323 | 1154 |
w := self unsignedLongAt:index. |
1155 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
4308 | 1156 |
^ w - (16r100000000) |
3323 | 1157 |
]. |
1158 |
^ w |
|
1159 |
||
1160 |
" |
|
1161 |
|b| |
|
1162 |
b := ByteArray new:4. |
|
1163 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1164 |
(b longAt:1) |
|
1165 |
" |
|
1166 |
||
1167 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
1168 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
1169 |
! |
|
1170 |
||
1171 |
longAt:index bigEndian:msb |
|
1172 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1173 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1174 |
Depending on msb, the value is retrieved MSB-first or LSB-first. |
1175 |
This may be worth a primitive." |
|
1176 |
||
1177 |
|w| |
|
1178 |
||
1179 |
w := self unsignedLongAt:index bigEndian:msb. |
|
1180 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
4308 | 1181 |
^ w - (16r100000000) |
3323 | 1182 |
]. |
1183 |
^ w |
|
1184 |
||
1185 |
" |
|
1186 |
|b| |
|
1187 |
b := ByteArray new:4. |
|
1188 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1189 |
(b longAt:1) |
|
1190 |
" |
|
1191 |
||
1192 |
"Modified: / 1.7.1996 / 21:11:33 / cg" |
|
1193 |
"Created: / 5.3.1998 / 14:02:03 / stefan" |
|
1194 |
! |
|
1195 |
||
1196 |
longAt:index put:value |
|
1197 |
"set the 4-bytes starting at index from the signed Integer value. |
|
3433 | 1198 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1199 |
The value is stored in the machines natural byte order. |
1200 |
This may be worth a primitive. |
|
1201 |
||
1202 |
This is the ST80 version of #signedDoubleWordAt:put:" |
|
1203 |
||
1204 |
|v| |
|
1205 |
||
3434 | 1206 |
%{ |
1207 |
/* |
|
1208 |
* handle the most common cases fast ... |
|
1209 |
*/ |
|
1210 |
if (__isSmallInteger(index)) { |
|
4308 | 1211 |
unsigned char *cp; |
1212 |
int sz; |
|
3434 | 1213 |
|
4308 | 1214 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
1215 |
if (cp) { |
|
1216 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
3434 | 1217 |
|
4308 | 1218 |
if ((idx+(sizeof(int)-1)) < sz) { |
1219 |
cp += idx; |
|
1220 |
/* |
|
1221 |
* aligned |
|
1222 |
*/ |
|
1223 |
if (((INT)cp & (sizeof(int)-1)) == 0) { |
|
3434 | 1224 |
int __v; |
1225 |
||
4308 | 1226 |
if (__isSmallInteger(value)) { |
1227 |
((int *)cp)[0] = __intVal(value); |
|
1228 |
RETURN (value); |
|
3434 | 1229 |
} |
1230 |
if (__v = __signedLongIntVal(value)) { |
|
1231 |
((int *)cp)[0] = __v; |
|
1232 |
RETURN (value); |
|
1233 |
} |
|
4308 | 1234 |
} |
1235 |
} |
|
1236 |
} |
|
3434 | 1237 |
} |
1238 |
%}. |
|
1239 |
||
3323 | 1240 |
value >= 0 ifTrue:[ |
4308 | 1241 |
v := value |
3323 | 1242 |
] ifFalse:[ |
4308 | 1243 |
v := value + 16r100000000 |
3323 | 1244 |
]. |
1245 |
self unsignedLongAt:index put:v. |
|
1246 |
^ value |
|
1247 |
||
1248 |
" |
|
1249 |
|b| |
|
1250 |
b := ByteArray new:4. |
|
1251 |
b longAt:1 put:-1. |
|
1252 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1253 |
" |
|
1254 |
||
1255 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1256 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1257 |
! |
|
1258 |
||
3444 | 1259 |
longAt:byteIndex put:anInteger bigEndian:msb |
1260 |
"store a signed long (32bit) integer. |
|
1261 |
The index is a smalltalk index (i.e. 1-based). |
|
1262 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
1263 |
||
1264 |
|v| |
|
1265 |
||
1266 |
v := anInteger. |
|
1267 |
anInteger < 0 ifTrue:[ |
|
4308 | 1268 |
v := v + 16r100000000 |
3444 | 1269 |
]. |
1270 |
^ self unsignedLongAt:byteIndex put:v bigEndian:msb |
|
1271 |
||
1272 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
1273 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
1274 |
! |
|
1275 |
||
6492 | 1276 |
pointerAt:index put:value |
1277 |
"set the pointer starting at index from the signed Integer value. |
|
1278 |
The index is a smalltalk index (i.e. 1-based). |
|
1279 |
Only aligned accesses are allowed. |
|
1280 |
The value is either an ExternalAddress or ExternalBytes" |
|
1281 |
||
1282 |
%{ |
|
1283 |
OBJ *pointer; |
|
1284 |
||
7814
c649ba9fd538
#pointerAt:put: now works for ExternalAddressLike objects
Stefan Vogel <sv@exept.de>
parents:
7813
diff
changeset
|
1285 |
if (__isExternalAddressLike(value)) { |
6492 | 1286 |
pointer = __externalAddressVal(value); |
7197
a68adb223592
also handle subclasses of ExternalBytes (Mapped..)
Claus Gittinger <cg@exept.de>
parents:
7193
diff
changeset
|
1287 |
} else if (__isExternalBytesLike(value)) { |
6492 | 1288 |
pointer = __externalBytesVal(value); |
6885 | 1289 |
if (pointer == (OBJ *)0) |
6492 | 1290 |
pointer = 0; |
1291 |
} else goto bad; |
|
1292 |
||
1293 |
if (__isSmallInteger(index)) { |
|
1294 |
unsigned char *cp; |
|
1295 |
int sz; |
|
1296 |
||
1297 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1298 |
if (cp) { |
|
1299 |
unsigned INT idx = ((unsigned INT)__smallIntegerVal(index)) - 1; |
|
1300 |
||
1301 |
if ((idx+(sizeof(pointer)-1)) < sz) { |
|
1302 |
cp += idx; |
|
1303 |
/* |
|
1304 |
* aligned |
|
1305 |
*/ |
|
1306 |
if (((INT)cp & (sizeof(pointer)-1)) == 0) { |
|
1307 |
((char **)cp)[0] = (char *) pointer; |
|
1308 |
RETURN (value); |
|
1309 |
} |
|
1310 |
} |
|
1311 |
} |
|
1312 |
} |
|
1313 |
bad:; |
|
1314 |
%}. |
|
1315 |
||
1316 |
self primitiveFailed. |
|
1317 |
||
1318 |
" |
|
1319 |
|b| |
|
1320 |
b := ByteArray new:ExternalAddress pointerSize. |
|
1321 |
b pointerAt:1 put:(ExternalAddress newAddress:16r12345678). |
|
1322 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1323 |
" |
|
1324 |
||
1325 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1326 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1327 |
! |
|
1328 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1329 |
signedDoubleWordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1330 |
"return the 4-bytes starting at index as a signed Integer. |
3433 | 1331 |
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
|
1332 |
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
|
1333 |
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
|
1334 |
|
4515 | 1335 |
^ 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
|
1336 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1337 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1338 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1339 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1340 |
b doubleWordAt:1 put:16rFFFFFFFF. |
4515 | 1341 |
(b signedDoubleWordAt:1) |
1342 |
" |
|
1343 |
" |
|
1344 |
|b| |
|
1345 |
b := ByteArray new:4. |
|
1346 |
b signedDoubleWordAt:1 put:-1. |
|
1347 |
(b doubleWordAt:1) |
|
3207
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 |
"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
|
1351 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1352 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1353 |
signedDoubleWordAt:index MSB:msb |
4515 | 1354 |
"return the 4-bytes starting at index as a (signed) Integer. |
3433 | 1355 |
The index is a smalltalk index (i.e. 1-based). |
4515 | 1356 |
The value is retrieved MSB-first, if the msb-arg is true; |
1357 |
LSB-first otherwise." |
|
1358 |
||
1359 |
|val |
|
1360 |
ival "{ Class: SmallInteger }" |
|
1361 |
t "{ Class: SmallInteger }" |
|
1362 |
i "{ Class: SmallInteger }" |
|
1363 |
b1 "{ Class: SmallInteger }" |
|
1364 |
b2 "{ Class: SmallInteger }" |
|
1365 |
b3 "{ Class: SmallInteger }" |
|
1366 |
b4 "{ Class: SmallInteger }"| |
|
1367 |
||
1368 |
%{ |
|
1369 |
/* |
|
1370 |
* handle the most common cases fast ... |
|
1371 |
*/ |
|
1372 |
if (__isSmallInteger(index)) { |
|
1373 |
unsigned char *cp; |
|
1374 |
int sz; |
|
1375 |
||
1376 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1377 |
if (cp) { |
|
1378 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
1379 |
int iVal; |
|
1380 |
||
1381 |
if ((idx+(sizeof(int)-1)) < sz) { |
|
1382 |
cp += idx; |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1383 |
|
4515 | 1384 |
if (msb == true) { |
1385 |
#if defined(__MSBFIRST) || defined(sparc) |
|
1386 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
|
1387 |
/* |
|
1388 |
* aligned |
|
1389 |
*/ |
|
1390 |
iVal = ((int *)cp)[0]; |
|
1391 |
} else |
|
1392 |
#endif |
|
1393 |
{ |
|
1394 |
iVal = cp[0]; |
|
1395 |
iVal = (iVal << 8) | cp[1]; |
|
1396 |
iVal = (iVal << 8) | cp[2]; |
|
1397 |
iVal = (iVal << 8) | cp[3]; |
|
1398 |
} |
|
1399 |
} else { |
|
1400 |
#if defined(i386) || (defined(UNALIGNED_FETCH_OK) && defined(__LSBFIRST)) |
|
1401 |
/* |
|
1402 |
* aligned or not - we dont care |
|
1403 |
* (i386 can fetch unaligned) |
|
1404 |
*/ |
|
1405 |
iVal = ((int *)cp)[0]; |
|
1406 |
#else |
|
1407 |
# if defined(__LSBFIRST) || defined(i386) |
|
1408 |
if (((INT)cp & (sizeof(int)-1))== 0) { |
|
1409 |
/* |
|
1410 |
* aligned |
|
1411 |
*/ |
|
1412 |
iVal = ((int *)cp)[0]; |
|
1413 |
} else |
|
1414 |
# endif |
|
1415 |
{ |
|
1416 |
iVal = cp[3]; |
|
1417 |
iVal = (iVal << 8) | cp[2]; |
|
1418 |
iVal = (iVal << 8) | cp[1]; |
|
1419 |
iVal = (iVal << 8) | cp[0]; |
|
1420 |
} |
|
1421 |
#endif |
|
1422 |
} |
|
1423 |
#ifdef alpha64 |
|
1424 |
RETURN (__MKSMALLINT(iVal)); |
|
1425 |
#else |
|
1426 |
RETURN (__MKINT(iVal)); |
|
1427 |
#endif |
|
1428 |
} |
|
1429 |
} |
|
1430 |
} |
|
1431 |
%}. |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1432 |
|
4515 | 1433 |
"/ fallBack code - non ByteArray-like receiver |
1434 |
"/ or funny index |
|
1435 |
||
1436 |
i := index. |
|
1437 |
b1 := self at:i. |
|
1438 |
b2 := self at:(i+1). |
|
1439 |
b3 := self at:(i+2). |
|
1440 |
b4 := self at:(i+3). |
|
1441 |
||
1442 |
msb ifFalse:[ |
|
1443 |
t := b4. b4 := b1. b1 := t. |
|
1444 |
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
|
1445 |
]. |
4515 | 1446 |
ival := b1. |
1447 |
ival := (ival bitShift:8) + b2. |
|
1448 |
ival := (ival bitShift:8) + b3. |
|
1449 |
val := (ival bitShift:8) + b4. |
|
1450 |
||
1451 |
(val > (16r7FFFFFFF)) ifTrue:[ |
|
1452 |
^ val - (16r100000000) |
|
1453 |
]. |
|
1454 |
^ val |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1455 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1456 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1457 |
|b| |
4515 | 1458 |
|
1459 |
b := ByteArray withAll:#(1 2 3 4). |
|
1460 |
(b signedDoubleWordAt:1 MSB:true) printStringRadix:16. |
|
1461 |
(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
|
1462 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1463 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1464 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1465 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1466 |
signedDoubleWordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1467 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1468 |
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
|
1469 |
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
|
1470 |
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
|
1471 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1472 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1473 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1474 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1475 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1476 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1477 |
v := value + 16r100000000 |
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 |
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
|
1480 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1481 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1482 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1483 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1484 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1485 |
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
|
1486 |
(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
|
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 |
"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
|
1490 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1491 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1492 |
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
|
1493 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1494 |
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
|
1495 |
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
|
1496 |
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
|
1497 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1498 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1499 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1500 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1501 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1502 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1503 |
v := value + 16r100000000 |
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 |
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
|
1506 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1507 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1508 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1509 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1510 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1511 |
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
|
1512 |
(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
|
1513 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1514 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1515 |
"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
|
1516 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1517 |
|
3323 | 1518 |
unsignedLongAt:index |
1519 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1520 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1521 |
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
|
1522 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1523 |
Same as doubleWordAt: for protocol completeness" |
3323 | 1524 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1525 |
^ self doubleWordAt:index |
3323 | 1526 |
|
1527 |
" |
|
1528 |
|b| |
|
1529 |
||
1530 |
b := ByteArray withAll:#(1 2 3 4). |
|
1531 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1532 |
" |
|
1533 |
||
1534 |
"Created: / 5.3.1998 / 11:56:53 / stefan" |
|
1535 |
"Modified: / 5.3.1998 / 14:58:48 / stefan" |
|
1536 |
! |
|
1537 |
||
1538 |
unsignedLongAt:index bigEndian:msb |
|
1539 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1540 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1541 |
The value is retrieved MSB-first, if the msb-arg is true; |
1542 |
LSB-first otherwise. |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1543 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1544 |
Same as doubleWordAt:MSB: for protocol completeness" |
3323 | 1545 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1546 |
^ self doubleWordAt:index MSB:msb |
3323 | 1547 |
|
1548 |
" |
|
1549 |
|b| |
|
1550 |
||
1551 |
b := ByteArray withAll:#(1 2 3 4). |
|
1552 |
(b unsignedLongAt:1 bigEndian:true) printStringRadix:16. |
|
1553 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1554 |
" |
|
1555 |
||
1556 |
"Modified: / 21.1.1998 / 17:42:30 / cg" |
|
1557 |
"Created: / 5.3.1998 / 11:46:05 / stefan" |
|
1558 |
! |
|
1559 |
||
1560 |
unsignedLongAt:index put:value |
|
1561 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1562 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1563 |
The value should be in the range 0 to 16rFFFFFFFF |
1564 |
(for negative values, the stored value is not defined). |
|
1565 |
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
|
1566 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1567 |
Same as doubleWordAt:put: for protocol completeness" |
3323 | 1568 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1569 |
^ self doubleWordAt:index put:value |
3323 | 1570 |
|
1571 |
" |
|
1572 |
|b| |
|
1573 |
b := ByteArray new:4. |
|
1574 |
b unsignedLongAt:1 put:16r04030201. |
|
1575 |
b inspect |
|
1576 |
" |
|
1577 |
||
1578 |
"Created: / 5.3.1998 / 11:57:44 / stefan" |
|
1579 |
"Modified: / 5.3.1998 / 14:58:59 / stefan" |
|
1580 |
! |
|
1581 |
||
1582 |
unsignedLongAt:index put:aNumber bigEndian:msb |
|
1583 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1584 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1585 |
The value must be in the range 0 to 16rFFFFFFFF. |
1586 |
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
|
1587 |
Subclasses may redefine this for better performance. |
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1588 |
Same as doubleWordAt:put:MSB: for protocol completeness" |
3323 | 1589 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1590 |
^ self doubleWordAt:index put:aNumber MSB:msb |
3323 | 1591 |
|
1592 |
" |
|
1593 |
|b| |
|
1594 |
b := ByteArray new:8. |
|
1595 |
b unsignedLongAt:1 put:16r04030201 bigEndian:true. |
|
1596 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1597 |
" |
|
1598 |
||
1599 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1600 |
"Created: / 5.3.1998 / 11:43:53 / stefan" |
|
1601 |
"Modified: / 5.3.1998 / 11:47:30 / stefan" |
|
3459 | 1602 |
! ! |
1603 |
||
1604 |
!UninterpretedBytes methodsFor:'accessing-shorts'! |
|
1605 |
||
1606 |
shortAt:index |
|
1607 |
"return the 2-bytes starting at index as a signed Integer. |
|
1608 |
The index is a smalltalk index (i.e. 1-based). |
|
1609 |
The value is retrieved in the machines natural byte order. |
|
1610 |
This may be worth a primitive. |
|
1611 |
This is the ST80 equivalent of #signedWordAt:" |
|
1612 |
||
1613 |
^ (self unsignedShortAt:index) signExtendedShortValue |
|
1614 |
||
1615 |
" |
|
1616 |
|b| |
|
1617 |
b := ByteArray new:2. |
|
1618 |
b unsignedShortAt:1 put:16rFFFF. |
|
1619 |
b shortAt:1 |
|
1620 |
" |
|
1621 |
||
1622 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
|
1623 |
"Created: / 5.3.1998 / 10:59:57 / stefan" |
|
1624 |
"Modified: / 5.3.1998 / 23:39:38 / stefan" |
|
3323 | 1625 |
! |
1626 |
||
3459 | 1627 |
shortAt:index bigEndian:msb |
1628 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1629 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1630 |
The value is retrieved MSB-first, if the msb-arg is true; |
1631 |
LSB-first otherwise. |
|
1632 |
This is the ST80 equivalent of #signedWordAt:" |
|
1633 |
||
1634 |
^ (self unsignedShortAt:index bigEndian:msb) signExtendedShortValue |
|
1635 |
||
1636 |
" |
|
1637 |
|b| |
|
1638 |
b := ByteArray new:2. |
|
1639 |
b unsignedShortAt:1 put:16rFFFF. |
|
1640 |
b shortAt:1 |
|
1641 |
" |
|
3323 | 1642 |
|
3459 | 1643 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
1644 |
"Created: / 5.3.1998 / 23:41:21 / stefan" |
|
1645 |
! |
|
1646 |
||
1647 |
shortAt:index put:value |
|
1648 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1649 |
The index is a smalltalk index (i.e. 1-based). |
|
1650 |
The stored value must be in the range -32768 .. +32676. |
|
1651 |
The value is stored in the machines natural byteorder. |
|
1652 |
This may be worth a primitive. |
|
1653 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1654 |
||
3323 | 1655 |
|
3459 | 1656 |
|v| |
1657 |
||
1658 |
value >= 0 ifTrue:[ |
|
4308 | 1659 |
v := value |
3323 | 1660 |
] ifFalse:[ |
4308 | 1661 |
v := 16r10000 + value |
3323 | 1662 |
]. |
3459 | 1663 |
self unsignedShortAt:index put:v. |
1664 |
^ value |
|
1665 |
||
1666 |
" |
|
1667 |
|b| |
|
1668 |
b := ByteArray new:6. |
|
1669 |
b shortAt:1 put:-1. |
|
1670 |
b shortAt:3 put:-2. |
|
1671 |
b shortAt:5 put:0. |
|
1672 |
b inspect |
|
1673 |
" |
|
1674 |
||
1675 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
|
1676 |
"Created: / 5.3.1998 / 11:02:05 / stefan" |
|
1677 |
! |
|
1678 |
||
1679 |
signedWordAt:index |
|
1680 |
"return the 2-bytes starting at index as a signed Integer. |
|
1681 |
The index is a smalltalk index (i.e. 1-based). |
|
1682 |
The value is retrieved in the machines natural byte order. |
|
1683 |
This may be worth a primitive." |
|
1684 |
||
1685 |
^ (self wordAt:index) signExtendedShortValue |
|
3323 | 1686 |
|
1687 |
" |
|
1688 |
|b| |
|
3459 | 1689 |
b := ByteArray new:2. |
1690 |
b wordAt:1 put:16rFFFF. |
|
1691 |
b signedWordAt:1 |
|
3323 | 1692 |
" |
1693 |
||
3459 | 1694 |
"Modified: 1.7.1996 / 21:14:38 / cg" |
3323 | 1695 |
! |
1696 |
||
3459 | 1697 |
signedWordAt:index MSB:msb |
1698 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1699 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1700 |
The value is retrieved MSB-first if the msb-arg is true, |
1701 |
LSB-first otherwise. |
|
1702 |
This may be worth a primitive." |
|
3323 | 1703 |
|
3459 | 1704 |
^ (self wordAt:index MSB:msb) signExtendedShortValue |
3323 | 1705 |
|
1706 |
" |
|
1707 |
|b| |
|
3459 | 1708 |
b := ByteArray new:2. |
1709 |
b wordAt:1 put:16r0080. |
|
1710 |
b signedWordAt:1 MSB:true. |
|
1711 |
b signedWordAt:1 MSB:false. |
|
1712 |
" |
|
1713 |
||
1714 |
"Modified: 1.7.1996 / 21:15:57 / cg" |
|
1715 |
! |
|
1716 |
||
1717 |
signedWordAt:index put:value |
|
1718 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1719 |
The index is a smalltalk index (i.e. 1-based). |
|
1720 |
The stored value must be in the range -32768 .. +32676. |
|
1721 |
The value is stored in the machines natural byteorder. |
|
1722 |
This may be worth a primitive. |
|
1723 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1724 |
||
1725 |
||
1726 |
|v| |
|
1727 |
||
1728 |
value >= 0 ifTrue:[ |
|
4308 | 1729 |
v := value |
3459 | 1730 |
] ifFalse:[ |
4308 | 1731 |
v := 16r10000 + value |
3459 | 1732 |
]. |
1733 |
self unsignedShortAt:index put:v. |
|
1734 |
^ value |
|
1735 |
||
1736 |
" |
|
1737 |
|b| |
|
1738 |
b := ByteArray new:6. |
|
1739 |
b shortAt:1 put:-1. |
|
1740 |
b shortAt:3 put:-2. |
|
1741 |
b shortAt:5 put:0. |
|
3323 | 1742 |
b inspect |
1743 |
" |
|
1744 |
||
3459 | 1745 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
1746 |
"Modified: / 5.3.1998 / 11:01:30 / stefan" |
|
1747 |
! |
|
1748 |
||
1749 |
signedWordAt:index put:value MSB:msb |
|
1750 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1751 |
The index is a smalltalk index (i.e. 1-based). |
|
1752 |
The stored value must be in the range -32768 .. +32676. |
|
1753 |
The value is stored MSB-first, if the msb-arg is true; |
|
1754 |
LSB-first otherwise. |
|
1755 |
This may be worth a primitive." |
|
1756 |
||
1757 |
|v| |
|
1758 |
||
1759 |
value >= 0 ifTrue:[ |
|
1760 |
v := value |
|
1761 |
] ifFalse:[ |
|
1762 |
v := 16r10000 + value |
|
1763 |
]. |
|
1764 |
self wordAt:index put:v MSB:msb. |
|
1765 |
^ value |
|
1766 |
||
1767 |
" |
|
1768 |
|b| |
|
1769 |
b := ByteArray new:4. |
|
1770 |
b signedWordAt:1 put:-1. |
|
1771 |
b signedWordAt:3 put:-2. |
|
1772 |
b inspect |
|
1773 |
" |
|
1774 |
||
1775 |
"Modified: 1.7.1996 / 21:12:13 / cg" |
|
3323 | 1776 |
! |
1777 |
||
1778 |
unsignedShortAt:index |
|
1779 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1780 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1781 |
The value is retrieved in the machines natural byte order |
1782 |
Subclasses may redefine this for better performance. |
|
1783 |
This is the ST80 equivalent of #wordAt:" |
|
1784 |
||
1785 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1786 |
^ self unsignedShortAt:index bigEndian:(UninterpretedBytes isBigEndian) |
3323 | 1787 |
|
1788 |
"Created: / 5.3.1998 / 11:38:25 / stefan" |
|
1789 |
"Modified: / 5.3.1998 / 14:59:25 / stefan" |
|
1790 |
! |
|
1791 |
||
1792 |
unsignedShortAt:index bigEndian:msb |
|
1793 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1794 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1795 |
The value is retrieved MSB-first (high 8 bits at lower index) if msb is true; |
1796 |
LSB-first (i.e. low 8-bits at lower byte index) if its false)" |
|
1797 |
||
1798 |
|b1 "{ Class: SmallInteger }" |
|
1799 |
b2 "{ Class: SmallInteger }"| |
|
1800 |
||
1801 |
b1 := self at:index. |
|
1802 |
b2 := self at:(index + 1). |
|
1803 |
msb ifTrue:[ |
|
4308 | 1804 |
^ (b1 bitShift:8) + b2 |
3323 | 1805 |
]. |
1806 |
^ (b2 bitShift:8) + b1 |
|
1807 |
||
1808 |
"Modified: / 21.1.1998 / 17:46:07 / cg" |
|
1809 |
"Created: / 5.3.1998 / 11:49:29 / stefan" |
|
1810 |
! |
|
1811 |
||
1812 |
unsignedShortAt:index put:value |
|
1813 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1814 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1815 |
The stored value must be in the range 0 .. 16rFFFF. |
1816 |
The value is stored in the machines natural byteorder." |
|
1817 |
||
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1818 |
^ self unsignedShortAt:index put:value bigEndian:(UninterpretedBytes isBigEndian) |
3323 | 1819 |
|
1820 |
" |
|
1821 |
|b| |
|
1822 |
b := ByteArray new:4. |
|
1823 |
b unsignedShortAt:1 put:16r0102. |
|
1824 |
b unsignedShortAt:3 put:16r0304. |
|
1825 |
b inspect |
|
1826 |
" |
|
1827 |
||
1828 |
"Created: / 5.3.1998 / 11:54:52 / stefan" |
|
1829 |
"Modified: / 5.3.1998 / 14:59:38 / stefan" |
|
1830 |
! |
|
1831 |
||
1832 |
unsignedShortAt:index put:value bigEndian:msb |
|
1833 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1834 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1835 |
The stored value must be in the range 0 .. 16rFFFF. |
1836 |
The value is stored LSB-first (i.e. the low 8bits are stored at the |
|
1837 |
lower index) if msb is false, MSB-first otherwise" |
|
1838 |
||
1839 |
|b1 b2 |
|
1840 |
iVal "{ Class: SmallInteger }"| |
|
1841 |
||
1842 |
iVal := value. |
|
1843 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1844 |
^ self elementBoundsError:iVal |
3323 | 1845 |
]. |
1846 |
msb ifTrue:[ |
|
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1847 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1848 |
b2 := (iVal bitAnd:16rFF). |
3323 | 1849 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1850 |
b1 := (iVal bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1851 |
b2 := ((iVal bitShift:-8) bitAnd:16rFF). |
3323 | 1852 |
]. |
1853 |
self at:index put:b1. |
|
1854 |
self at:index+1 put:b2. |
|
1855 |
^ value |
|
1856 |
||
1857 |
" |
|
1858 |
|b| |
|
1859 |
b := ByteArray new:8. |
|
1860 |
b unsignedShortAt:1 put:16r0102 bigEndian:false. |
|
1861 |
b unsignedShortAt:3 put:16r0304 bigEndian:false. |
|
1862 |
b unsignedShortAt:5 put:16r0102 bigEndian:true. |
|
1863 |
b unsignedShortAt:7 put:16r0304 bigEndian:true. |
|
1864 |
b inspect |
|
1865 |
" |
|
1866 |
||
1867 |
"Modified: / 21.1.1998 / 17:48:15 / cg" |
|
1868 |
"Modified: / 5.3.1998 / 11:52:28 / stefan" |
|
1869 |
! |
|
1870 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1871 |
wordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1872 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 1873 |
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
|
1874 |
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
|
1875 |
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
|
1876 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1877 |
^ self wordAt:index MSB:(UninterpretedBytes isBigEndian) |
3323 | 1878 |
|
1879 |
"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
|
1880 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1881 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1882 |
wordAt:index MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1883 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 1884 |
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
|
1885 |
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
|
1886 |
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
|
1887 |
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
|
1888 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1889 |
|b1 "{ Class: SmallInteger }" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1890 |
b2 "{ Class: SmallInteger }"| |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1891 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1892 |
b1 := self at:index. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1893 |
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
|
1894 |
msb ifTrue:[ |
4308 | 1895 |
^ (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
|
1896 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1897 |
^ (b2 bitShift:8) + b1 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1898 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1899 |
"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
|
1900 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1901 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1902 |
wordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1903 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 1904 |
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
|
1905 |
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
|
1906 |
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
|
1907 |
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
|
1908 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1909 |
^ 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
|
1910 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1911 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1912 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1913 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1914 |
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
|
1915 |
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
|
1916 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1917 |
" |
3323 | 1918 |
|
1919 |
"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
|
1920 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1921 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1922 |
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
|
1923 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 1924 |
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
|
1925 |
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
|
1926 |
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
|
1927 |
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
|
1928 |
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
|
1929 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1930 |
|b1 b2 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1931 |
iVal "{ Class: SmallInteger }"| |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1932 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1933 |
iVal := value. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1934 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1935 |
^ self elementBoundsError:iVal |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1936 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1937 |
msb ifTrue:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1938 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1939 |
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
|
1940 |
] ifFalse:[ |
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1941 |
b1 := (iVal bitAnd:16rFF). |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
1942 |
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
|
1943 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1944 |
self at:index put:b1. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1945 |
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
|
1946 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1947 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1948 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1949 |
b := ByteArray new:8. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1950 |
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
|
1951 |
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
|
1952 |
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
|
1953 |
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
|
1954 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1955 |
" |
3212
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 |
"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
|
1958 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1959 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1960 |
wordAtWordIndex:index |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1961 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1962 |
Fetching in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1963 |
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
|
1964 |
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
|
1965 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1966 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1967 |
^ self wordAtWordIndex:index MSB:(UninterpretedBytes isBigEndian) |
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 |
"Created: / 21.1.1998 / 17:48:26 / cg" |
3323 | 1970 |
"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
|
1971 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1972 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1973 |
wordAtWordIndex:index MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1974 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1975 |
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
|
1976 |
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
|
1977 |
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
|
1978 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1979 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1980 |
^ 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
|
1981 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1982 |
"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
|
1983 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1984 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1985 |
wordAtWordIndex:index put:value |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1986 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1987 |
Storing in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1988 |
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
|
1989 |
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
|
1990 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1991 |
|
4019
c9284ca27a4a
tuned some doubleWordAt methods;
Claus Gittinger <cg@exept.de>
parents:
3936
diff
changeset
|
1992 |
^ 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
|
1993 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1994 |
"Created: / 21.1.1998 / 17:48:34 / cg" |
3323 | 1995 |
"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
|
1996 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1997 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1998 |
wordAtWordIndex:index put:value MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1999 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2000 |
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
|
2001 |
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
|
2002 |
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
|
2003 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2004 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2005 |
^ 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
|
2006 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
2007 |
"Created: / 21.1.1998 / 17:48:38 / cg" |
3459 | 2008 |
! ! |
2009 |
||
2010 |
!UninterpretedBytes methodsFor:'accessing-strings'! |
|
2011 |
||
2012 |
stringAt:index |
|
2013 |
"return a string starting at index up to the 0-byte. |
|
2014 |
The index is a smalltalk index (i.e. 1-based)." |
|
2015 |
||
2016 |
|stream i "{ Class: SmallInteger }" c| |
|
2017 |
||
2018 |
stream := WriteStream on:''. |
|
2019 |
i := index. |
|
2020 |
[(c := self basicAt:i) ~~ 0] whileTrue:[ |
|
4308 | 2021 |
stream nextPut:(Character value:c). |
2022 |
i := i + 1. |
|
3459 | 2023 |
]. |
2024 |
^ stream contents |
|
2025 |
||
2026 |
"Created: / 21.1.1998 / 17:44:50 / cg" |
|
2027 |
! |
|
2028 |
||
2029 |
stringAt:index put:aString |
|
2030 |
"copy aString to the externalBytes, starting at index up to |
|
2031 |
(and including) the 0-byte. |
|
2032 |
The index is a smalltalk index (i.e. 1-based)." |
|
2033 |
||
2034 |
|i "{ Class: SmallInteger }"| |
|
2035 |
||
2036 |
i := index. |
|
2037 |
aString do:[:aChar | |
|
4308 | 2038 |
self basicAt:i put:aChar asciiValue. |
2039 |
i := i + 1. |
|
3459 | 2040 |
]. |
2041 |
self basicAt:i put:0. |
|
2042 |
^ aString |
|
2043 |
||
2044 |
" |
|
2045 |
|bytes| |
|
2046 |
||
2047 |
bytes := ExternalBytes new:10. |
|
2048 |
bytes stringAt:1 put:'hello'. |
|
2049 |
1 to:bytes size do:[:i | |
|
4308 | 2050 |
Transcript showCR:(bytes at:i) |
3459 | 2051 |
] |
2052 |
" |
|
2053 |
||
2054 |
"Created: / 21.1.1998 / 17:45:02 / cg" |
|
2055 |
! |
|
2056 |
||
7812 | 2057 |
stringAt:index put:aString size:maxSize |
2058 |
"copy aString to the externalBytes, starting at index up to either maxSize characters, |
|
2059 |
or (and including) the 0-byte, whichever is encountered first. |
|
2060 |
The index is a smalltalk index (i.e. 1-based)." |
|
2061 |
||
2062 |
|remaining "{ Class: SmallInteger }" |
|
2063 |
i "{ Class: SmallInteger }"| |
|
2064 |
||
2065 |
remaining := maxSize. |
|
2066 |
remaining <= 0 ifTrue:[^ self]. |
|
2067 |
||
2068 |
i := index. |
|
2069 |
aString do:[:aChar | |
|
2070 |
self basicAt:i put:aChar asciiValue. |
|
2071 |
i := i + 1. |
|
2072 |
remaining := remaining - 1. |
|
2073 |
remaining <= 0 ifTrue:[^ self]. |
|
2074 |
]. |
|
2075 |
self basicAt:i put:0. |
|
2076 |
^ aString |
|
2077 |
||
2078 |
" |
|
2079 |
|bytes| |
|
2080 |
||
2081 |
bytes := ExternalBytes new:10. |
|
2082 |
bytes stringAt:1 put:'hello' size:3. |
|
2083 |
1 to:bytes size do:[:i | |
|
2084 |
Transcript showCR:(bytes at:i) |
|
2085 |
] |
|
2086 |
" |
|
2087 |
" |
|
2088 |
|bytes| |
|
2089 |
||
2090 |
bytes := ByteArray new:10 withAll:16rFF. |
|
2091 |
bytes stringAt:1 put:'he' size:3. |
|
2092 |
1 to:bytes size do:[:i | |
|
2093 |
Transcript showCR:(bytes at:i) |
|
2094 |
] |
|
2095 |
" |
|
2096 |
||
2097 |
"Created: / 21.1.1998 / 17:45:02 / cg" |
|
2098 |
! |
|
2099 |
||
3459 | 2100 |
stringAt:index size:maxSize |
2101 |
"return a string starting at index up to maxSize, or a 0-byte. |
|
2102 |
The index is a smalltalk index (i.e. 1-based)." |
|
2103 |
||
2104 |
|stream c i "{ Class: SmallInteger }"| |
|
2105 |
||
2106 |
stream := WriteStream on:(String new:maxSize). |
|
2107 |
i := index. |
|
2108 |
[(i <= maxSize) |
|
2109 |
and:[(c := self basicAt:i) ~~ 0]] whileTrue:[ |
|
4308 | 2110 |
stream nextPut:(Character value:c). |
2111 |
i := i + 1. |
|
3459 | 2112 |
]. |
2113 |
^ stream contents |
|
2114 |
||
2115 |
"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
|
2116 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2117 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2118 |
zeroByteStringAt:index maximumSize:count |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2119 |
"extract a zeroByte-delimited string, given initial index and |
3433 | 2120 |
maximum number of characters (bytes). |
2121 |
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
|
2122 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2123 |
|bytes idx| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2124 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2125 |
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
|
2126 |
idx := bytes indexOf:0. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2127 |
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
|
2128 |
^ bytes asString |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2129 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2130 |
"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
|
2131 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
2132 |
|
4782 | 2133 |
!UninterpretedBytes methodsFor:'filling & replacing'! |
2134 |
||
2135 |
replaceBytesFrom:start to:stop with:sourceBytes startingAt:sourceIndex |
|
7252
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2136 |
|srcIdx| |
4782 | 2137 |
|
7252
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2138 |
srcIdx := sourceIndex. |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2139 |
start to:stop do:[:dstIdx | |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2140 |
self at:dstIdx put:(sourceBytes at:srcIdx). |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2141 |
srcIdx := srcIdx + 1 |
82cd08881a2a
abstract replaceBytes fallback is required (lead to recursion)
Claus Gittinger <cg@exept.de>
parents:
7218
diff
changeset
|
2142 |
]. |
4782 | 2143 |
! ! |
2144 |
||
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2145 |
!UninterpretedBytes methodsFor:'misc'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2146 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2147 |
swapLongAt:byteIndex |
3433 | 2148 |
"swap the byteOrder of a long. |
2149 |
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
|
2150 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2151 |
|t| |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2152 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2153 |
t := self byteAt:byteIndex. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2154 |
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
|
2155 |
self byteAt:(byteIndex + 3) put:t. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2156 |
t := self byteAt:(byteIndex + 1). |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2157 |
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
|
2158 |
self byteAt:(byteIndex + 2) put:t |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2159 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2160 |
"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
|
2161 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
2162 |
|
3323 | 2163 |
!UninterpretedBytes methodsFor:'queries'! |
2164 |
||
7218
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2165 |
defaultElement |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2166 |
^ 0 |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2167 |
! |
b798be6d632f
elementBoundsError -> elementBoundsError:
Claus Gittinger <cg@exept.de>
parents:
7197
diff
changeset
|
2168 |
|
3323 | 2169 |
sizeInBytes |
2170 |
"return the number of 8-bit bytes in the receiver. |
|
2171 |
This is needed since subclasse may redefine #size (TwoByteString)" |
|
2172 |
||
2173 |
^ super size |
|
2174 |
||
2175 |
"Created: / 5.3.1998 / 10:41:13 / stefan" |
|
2176 |
! ! |
|
2177 |
||
695 | 2178 |
!UninterpretedBytes class methodsFor:'documentation'! |
2179 |
||
2180 |
version |
|
7814
c649ba9fd538
#pointerAt:put: now works for ExternalAddressLike objects
Stefan Vogel <sv@exept.de>
parents:
7813
diff
changeset
|
2181 |
^ '$Header: /cvs/stx/stx/libbasic/UninterpretedBytes.st,v 1.49 2003-12-19 18:55:04 stefan Exp $' |
695 | 2182 |
! ! |