author | Claus Gittinger <cg@exept.de> |
Tue, 24 Nov 1998 18:04:36 +0100 | |
changeset 3936 | dd8cd28d4a9b |
parent 3459 | 6cb151c3950c |
child 4019 | c9284ca27a4a |
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 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
13 |
ArrayedCollection subclass:#UninterpretedBytes |
1266 | 14 |
instanceVariableNames:'' |
3323 | 15 |
classVariableNames:'IsBigEndian' |
1266 | 16 |
poolDictionaries:'' |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
17 |
category:'Collections-Abstract' |
1 | 18 |
! |
19 |
||
3433 | 20 |
!UninterpretedBytes primitiveDefinitions! |
21 |
%{ |
|
22 |
/* |
|
23 |
* Notice: I am abstract, and my subclasses may be anything. |
|
24 |
* Therefore, the code must always handle the fallback case |
|
25 |
* where the receiver is neither an ExternalBytes nor a ByteArray. |
|
26 |
* (which are, however, the most common) |
|
27 |
* |
|
28 |
* macro to fetch my byte address and size-in-bytes; |
|
29 |
* convenient for inline-C code. |
|
30 |
* (yes, C is bad ...) |
|
31 |
*/ |
|
32 |
#define __fetchBytePointerAndSize__(o, pPtr, pSize) \ |
|
33 |
{\ |
|
34 |
if (__isNonNilObject(o)) { \ |
|
35 |
if (__qClass(o) == ByteArray) { \ |
|
36 |
*(pPtr) = (char *)__ByteArrayInstPtr(o)->ba_element; \ |
|
37 |
*(pSize) = __byteArraySize(o); \ |
|
38 |
} else if (__qClass(o) == ExternalBytes) { \ |
|
39 |
OBJ __sz__ = __externalBytesSize(o); \ |
|
40 |
if (__isSmallInteger(__sz__)) { \ |
|
41 |
*(pSize) = __intVal(__sz__); \ |
|
42 |
*(pPtr) = (char *)(__externalBytesAddress(o)); \ |
|
43 |
} else { \ |
|
44 |
*(pPtr) = (char *)0; \ |
|
45 |
} \ |
|
46 |
} else { \ |
|
47 |
*(pPtr) = (char *)0; \ |
|
48 |
} \ |
|
49 |
} else { \ |
|
50 |
*(pPtr) = (char *)0; \ |
|
51 |
} \ |
|
52 |
} |
|
53 |
||
54 |
%} |
|
55 |
! ! |
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56 |
||
68 | 57 |
!UninterpretedBytes class methodsFor:'documentation'! |
1 | 58 |
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88 | 59 |
copyright |
60 |
" |
|
61 |
COPYRIGHT (c) 1993 by Claus Gittinger |
|
300 | 62 |
All Rights Reserved |
88 | 63 |
|
64 |
This software is furnished under a license and may be used |
|
65 |
only in accordance with the terms of that license and with the |
|
66 |
inclusion of the above copyright notice. This software may not |
|
67 |
be provided or otherwise made available to, or used by, any |
|
68 |
other person. No title to or ownership of the software is |
|
69 |
hereby transferred. |
|
70 |
" |
|
71 |
! |
|
72 |
||
68 | 73 |
documentation |
74 |
" |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
75 |
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
|
76 |
containers; concrete subclasses are |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
77 |
ByteArray (which store the bytes within the |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
78 |
Smalltalk object memory) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
79 |
and |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
80 |
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
|
81 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
82 |
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
|
83 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
84 |
[See also:] |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
85 |
ByteArray String ExternalBytes |
1294 | 86 |
|
87 |
[author:] |
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88 |
Claus Gittinger |
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3433 | 89 |
|
90 |
[Notice:] |
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91 |
Notice the confusion due to multiple methods with the same |
|
92 |
functionality (i.e. 'xxxx:MSB:' vs. 'xxxx:bigEndian:'). |
|
93 |
The reason is that at the time this class was written, |
|
94 |
ST80 sid not offer protocol to specify the byteOrder, and |
|
95 |
ST/X provided methods ending in 'MSB:' for this. |
|
96 |
In the meanwhile, VW added protocol ending in 'bigEndian:', |
|
97 |
which has been added here for compatibility. |
|
98 |
(certainly a point, where an ansi-standard will help) |
|
68 | 99 |
" |
100 |
! ! |
|
1 | 101 |
|
3323 | 102 |
!UninterpretedBytes class methodsFor:'initialization'! |
103 |
||
104 |
checkByteOrder |
|
105 |
"initialize our current byteOrder. |
|
106 |
Must be called at system init time and on snapshot restart" |
|
107 |
||
108 |
IsBigEndian := self isBigEndian. |
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109 |
||
110 |
"Created: / 5.3.1998 / 14:51:41 / stefan" |
|
111 |
! |
|
112 |
||
113 |
initialize |
|
114 |
"get the byte order" |
|
115 |
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116 |
self checkByteOrder. |
|
117 |
||
118 |
"want to be informed when returning from snapshot" |
|
119 |
ObjectMemory dependents addDependent:self |
|
120 |
||
121 |
"Created: / 5.3.1998 / 14:46:31 / stefan" |
|
122 |
"Modified: / 5.3.1998 / 14:53:28 / stefan" |
|
123 |
! |
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124 |
||
125 |
update:something with:aParameter from:changedObject |
|
126 |
"handle image restarts and reget the byte order" |
|
127 |
||
128 |
(something == #returnFromSnapshot) ifTrue:[ |
|
129 |
self checkByteOrder. |
|
130 |
] |
|
131 |
||
132 |
"Created: / 5.3.1998 / 14:55:13 / stefan" |
|
133 |
! ! |
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134 |
||
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
135 |
!UninterpretedBytes class methodsFor:'instance creation'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
136 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
137 |
from:aCollection |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
138 |
^ ByteArray from:aCollection |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
139 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
140 |
"Created: / 3.4.1998 / 13:29:50 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
141 |
"Modified: / 3.4.1998 / 13:30:12 / cg" |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
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parents:
3323
diff
changeset
|
142 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
143 |
|
1 | 144 |
!UninterpretedBytes class methodsFor:'queries'! |
145 |
||
146 |
isBigEndian |
|
77 | 147 |
"return true, if words/shorts store the most-significant |
148 |
byte first (MSB), false if least-sign.-first (LSB). |
|
149 |
I.e. false for vax, intel; true for m68k, sun." |
|
1 | 150 |
|
151 |
%{ /* NOCONTEXT */ |
|
152 |
||
3936 | 153 |
#ifdef __MSBFIRST |
154 |
RETURN (true); |
|
155 |
#else |
|
1 | 156 |
/* |
157 |
* I dont like ifdefs - you always forget some ... |
|
3433 | 158 |
* therefore we look into a structure at run-time. |
159 |
* (also, there are CPUs around [mips], where the byteorder |
|
160 |
* is programmable, and which come in different flavours) |
|
161 |
* |
|
162 |
* NOTICE: |
|
163 |
* both the JIT and stc may inline this to a |
|
164 |
* constant for systems where this is known. |
|
1 | 165 |
*/ |
166 |
union { |
|
300 | 167 |
unsigned int u_l; |
168 |
char u_c[sizeof(int)]; |
|
1 | 169 |
} u; |
170 |
||
171 |
u.u_l = 0x87654321; |
|
77 | 172 |
if (u.u_c[0] == 0x21) RETURN (false); |
173 |
RETURN (true); |
|
3936 | 174 |
#endif |
1 | 175 |
%} |
3433 | 176 |
" |
177 |
UninterpretedBytes isBigEndian |
|
178 |
" |
|
3209 | 179 |
! |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
180 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
181 |
isBuiltInClass |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
182 |
"return true if this class is known by the run-time-system. |
3323 | 183 |
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
|
184 |
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
|
185 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
186 |
^ self == UninterpretedBytes |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
187 |
|
3323 | 188 |
"Modified: / 23.4.1996 / 15:56:25 / cg" |
189 |
"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
|
190 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
191 |
|
3459 | 192 |
!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
|
193 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
194 |
byteAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
195 |
"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
|
196 |
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
|
197 |
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
|
198 |
instead of a character." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
199 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
200 |
^ self subclassResponsibility |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
201 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
202 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
203 |
byteAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
204 |
"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
|
205 |
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
|
206 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
207 |
^ self subclassResponsibility |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
208 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
209 |
|
3459 | 210 |
signedByteAt:index |
211 |
"return the byte at index as a signed 8 bit value. |
|
212 |
The index is a smalltalk index (i.e. 1-based). |
|
213 |
This may be worth a primitive." |
|
214 |
||
215 |
^ (self at:index) signExtendedByteValue |
|
216 |
||
217 |
" |
|
218 |
|b| |
|
219 |
b := ByteArray new:2. |
|
220 |
b at:1 put:16rFF. |
|
221 |
b at:2 put:16r7F. |
|
222 |
b signedByteAt:1 |
|
223 |
" |
|
224 |
||
225 |
"Modified: 1.7.1996 / 21:13:53 / cg" |
|
226 |
! |
|
227 |
||
228 |
signedByteAt:index put:aSignedByteValue |
|
229 |
"return the byte at index as a signed 8 bit value. |
|
230 |
The index is a smalltalk index (i.e. 1-based). |
|
231 |
Return the signedByteValue argument. |
|
232 |
This may be worth a primitive." |
|
233 |
||
234 |
|b "{ Class: SmallInteger }"| |
|
235 |
||
236 |
aSignedByteValue >= 0 ifTrue:[ |
|
237 |
b := aSignedByteValue |
|
238 |
] ifFalse:[ |
|
239 |
b := 16r100 + aSignedByteValue |
|
240 |
]. |
|
241 |
self at:index put:b. |
|
242 |
^ aSignedByteValue |
|
243 |
||
244 |
" |
|
245 |
|b| |
|
246 |
b := ByteArray new:2. |
|
247 |
b signedByteAt:1 put:-1. |
|
248 |
b at:1 |
|
249 |
" |
|
250 |
||
251 |
"Modified: 1.7.1996 / 21:12:37 / cg" |
|
252 |
! ! |
|
253 |
||
254 |
!UninterpretedBytes methodsFor:'accessing-floats & doubles'! |
|
255 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
256 |
doubleAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
257 |
"return the 8-bytes starting at index as a Float. |
3433 | 258 |
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
|
259 |
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
|
260 |
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
|
261 |
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
|
262 |
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
|
263 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
264 |
|newFloat| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
265 |
|
3433 | 266 |
%{ |
267 |
/* |
|
268 |
* handle the most common cases fast ... |
|
269 |
*/ |
|
270 |
if (__isSmallInteger(index)) { |
|
271 |
char *cp; |
|
272 |
int sz; |
|
273 |
||
274 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
275 |
if (cp) { |
|
276 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
277 |
||
3434 | 278 |
if ((idx+(sizeof(double)-1)) < sz) { |
3433 | 279 |
cp += idx; |
280 |
/* |
|
281 |
* aligned |
|
282 |
*/ |
|
3434 | 283 |
if (((INT)cp & (sizeof(double)-1)) == 0) { |
3433 | 284 |
double dVal = ((double *)cp)[0]; |
3434 | 285 |
OBJ f; |
286 |
||
287 |
__qMKFLOAT(f, dVal); |
|
288 |
RETURN (f); |
|
3433 | 289 |
} |
290 |
} |
|
291 |
} |
|
292 |
} |
|
293 |
%}. |
|
294 |
||
3207
a6e3c98e2a8e
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|
295 |
newFloat := Float basicNew. |
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changeset
|
296 |
1 to:8 do:[:destIndex| |
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changeset
|
297 |
newFloat basicAt:destIndex put:(self at:index - 1 + destIndex) |
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|
298 |
]. |
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changeset
|
299 |
^ newFloat. |
3433 | 300 |
|
301 |
" |
|
302 |
|b| |
|
303 |
||
304 |
b := ByteArray new:20. |
|
305 |
b doubleAt:1 put:(Float pi). |
|
306 |
Transcript showCR:b. |
|
307 |
Transcript showCR:(b doubleAt:1) |
|
308 |
" |
|
3207
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diff
changeset
|
309 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
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parents:
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diff
changeset
|
310 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
311 |
doubleAt:index MSB:msb |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
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changeset
|
312 |
"return the 8-bytes starting at index as a Float. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
3444
diff
changeset
|
313 |
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:
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diff
changeset
|
314 |
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:
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parents:
3444
diff
changeset
|
315 |
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:
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diff
changeset
|
316 |
float representation - if the bytearray originated from another |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
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changeset
|
317 |
machine, some conversion is usually needed." |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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changeset
|
318 |
|
1a8c314b5d7d
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parents:
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changeset
|
319 |
|newFloat| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
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changeset
|
320 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
321 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
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changeset
|
322 |
^ self doubleAt:index. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
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changeset
|
323 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
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changeset
|
324 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
325 |
newFloat := Float basicNew. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
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changeset
|
326 |
1 to:8 do:[:destIndex| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
3444
diff
changeset
|
327 |
newFloat basicAt:(9-destIndex) put:(self at:index - 1 + destIndex) |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
3444
diff
changeset
|
328 |
]. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
3444
diff
changeset
|
329 |
^ newFloat. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
3444
diff
changeset
|
330 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
331 |
"Created: / 15.5.1998 / 17:21:45 / cg" |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
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parents:
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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 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
334 |
doubleAt:index put:aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
335 |
"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
|
336 |
starting at index. |
3433 | 337 |
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
|
338 |
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
|
339 |
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
|
340 |
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
|
341 |
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
|
342 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
343 |
|flt| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
344 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
345 |
flt := aFloat asFloat. |
3433 | 346 |
%{ |
347 |
/* |
|
348 |
* handle the most common cases fast ... |
|
349 |
*/ |
|
350 |
if (__isSmallInteger(index) && __isFloat(flt)) { |
|
351 |
char *cp; |
|
352 |
int sz; |
|
353 |
||
354 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
355 |
if (cp) { |
|
356 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
357 |
||
3434 | 358 |
if ((idx+(sizeof(double)-1)) < sz) { |
3433 | 359 |
cp += idx; |
360 |
/* |
|
361 |
* aligned |
|
362 |
*/ |
|
3434 | 363 |
if (((INT)cp & (sizeof(double)-1)) == 0) { |
3433 | 364 |
((double *)cp)[0] = __floatVal(flt); |
365 |
RETURN (aFloat); |
|
366 |
} |
|
367 |
} |
|
368 |
} |
|
369 |
} |
|
370 |
%}. |
|
371 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
372 |
1 to:8 do:[:srcIndex| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
373 |
self at:index - 1 + srcIndex put:(flt basicAt:srcIndex) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
374 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
375 |
^ aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
376 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
377 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
378 |
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
|
379 |
"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
|
380 |
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
|
381 |
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
|
382 |
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
|
383 |
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
|
384 |
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
|
385 |
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
|
386 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
387 |
|flt| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
388 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
389 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
3447 | 390 |
^ 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
|
391 |
]. |
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 |
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
|
394 |
1 to:8 do:[:srcIndex| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
395 |
self at:index - 1 + srcIndex put:(flt basicAt:(9-srcIndex)) |
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 |
^ aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
398 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
399 |
"Created: / 15.5.1998 / 17:22:27 / cg" |
3447 | 400 |
"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
|
401 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
402 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
403 |
floatAt:index |
3434 | 404 |
"return the 4-bytes starting at index as a ShortFloat. |
3433 | 405 |
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
|
406 |
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
|
407 |
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
|
408 |
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
|
409 |
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
|
410 |
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
|
411 |
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
|
412 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
413 |
|newFloat| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
414 |
|
3434 | 415 |
%{ |
416 |
/* |
|
417 |
* handle the most common cases fast ... |
|
418 |
*/ |
|
419 |
if (__isSmallInteger(index)) { |
|
420 |
char *cp; |
|
421 |
int sz; |
|
422 |
||
423 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
424 |
if (cp) { |
|
425 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
426 |
||
427 |
if ((idx+(sizeof(float)-1)) < sz) { |
|
428 |
cp += idx; |
|
429 |
/* |
|
430 |
* aligned |
|
431 |
*/ |
|
432 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
433 |
float fVal = ((float *)cp)[0]; |
|
434 |
OBJ f; |
|
435 |
||
436 |
__qMKSFLOAT(f, fVal); |
|
437 |
RETURN (f); |
|
438 |
} |
|
439 |
} |
|
440 |
} |
|
441 |
} |
|
442 |
%}. |
|
443 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
444 |
newFloat := ShortFloat basicNew. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
445 |
1 to:4 do:[:destIndex| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
446 |
newFloat basicAt:destIndex put:(self at:index - 1 + destIndex) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
447 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
448 |
^ newFloat. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
449 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
450 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
451 |
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
|
452 |
"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
|
453 |
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
|
454 |
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
|
455 |
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
|
456 |
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
|
457 |
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
|
458 |
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
|
459 |
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
|
460 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
461 |
|newFloat| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
462 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
463 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
464 |
^ self floatAt:index |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
465 |
]. |
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 |
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
|
468 |
1 to:4 do:[:destIndex| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
469 |
newFloat basicAt:(5-destIndex) put:(self at:index - 1 + destIndex) |
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. |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
472 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
473 |
"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
|
474 |
"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
|
475 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
476 |
|
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
477 |
floatAt:index put:aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
478 |
"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
|
479 |
starting at index. |
3433 | 480 |
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
|
481 |
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
|
482 |
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
|
483 |
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
|
484 |
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
|
485 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
486 |
|sflt| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
487 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
488 |
sflt := aFloat asShortFloat. |
3434 | 489 |
%{ |
490 |
/* |
|
491 |
* handle the most common cases fast ... |
|
492 |
*/ |
|
493 |
if (__isSmallInteger(index) && __isShortFloat(sflt)) { |
|
494 |
char *cp; |
|
495 |
int sz; |
|
496 |
||
497 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
498 |
if (cp) { |
|
499 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
500 |
||
501 |
if ((idx+(sizeof(float)-1)) < sz) { |
|
502 |
cp += idx; |
|
503 |
/* |
|
504 |
* aligned |
|
505 |
*/ |
|
506 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
507 |
((float *)cp)[0] = __shortFloatVal(sflt); |
|
508 |
||
509 |
RETURN (aFloat); |
|
510 |
} |
|
511 |
} |
|
512 |
} |
|
513 |
} |
|
514 |
%}. |
|
515 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
516 |
1 to:4 do:[:srcIndex| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
517 |
self at:index - 1 + srcIndex put:(sflt basicAt:srcIndex) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
518 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
519 |
^ aFloat |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
520 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
521 |
|
3446
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
522 |
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
|
523 |
"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
|
524 |
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
|
525 |
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
|
526 |
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
|
527 |
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
|
528 |
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
|
529 |
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
|
530 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
531 |
|sflt| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
532 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
533 |
msb == UninterpretedBytes isBigEndian ifTrue:[ |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
534 |
^ self floatAt:index put:aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
535 |
]. |
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 |
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
|
538 |
1 to:4 do:[:srcIndex| |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
539 |
self at:index - 1 + srcIndex put:(sflt basicAt:(5-srcIndex)) |
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 |
^ aFloat |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
542 |
|
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
543 |
"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
|
544 |
! |
1a8c314b5d7d
added #floatAt:MSB: , #floatAt:put:MSB: , #doubleAt:MSB: and #doubleAt:put:MSB:
Claus Gittinger <cg@exept.de>
parents:
3444
diff
changeset
|
545 |
|
3323 | 546 |
ieeeDoubleAt:index |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
547 |
"retrieve the 8 bytes starting at index as a float. |
3433 | 548 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 549 |
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
|
550 |
number format." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
551 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
552 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
553 |
currently, we assume that the machines native number format is already |
3323 | 554 |
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
|
555 |
to an IBM 370 or old VAX etc. |
3323 | 556 |
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
|
557 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
558 |
" |
3433 | 559 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
560 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
561 |
^ self doubleAt:index |
3323 | 562 |
|
563 |
"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
|
564 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
565 |
|
3323 | 566 |
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
|
567 |
"store the value of the argument, aFloat into the receiver |
3433 | 568 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 569 |
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
|
570 |
(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
|
571 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
572 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
573 |
currently, we assume that the machines native number format is already |
3323 | 574 |
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
|
575 |
to an IBM 370 or old VAX etc. |
3323 | 576 |
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
|
577 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
578 |
" |
3433 | 579 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
580 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
581 |
^ self doubleAt:index put:aFloat |
3323 | 582 |
|
583 |
"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
|
584 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
585 |
|
3323 | 586 |
ieeeFloatAt:index |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
587 |
"retrieve the 4 bytes starting at index as a float. |
3433 | 588 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 589 |
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
|
590 |
number format." |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
591 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
592 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
593 |
currently, we assume that the machines native number format is already |
3323 | 594 |
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
|
595 |
to an IBM 370 or old VAX etc. |
3323 | 596 |
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
|
597 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
598 |
" |
3433 | 599 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
600 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
601 |
^ self floatAt:index |
3323 | 602 |
|
603 |
"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
|
604 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
605 |
|
3323 | 606 |
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
|
607 |
"store the value of the argument, aFloat into the receiver |
3433 | 608 |
starting at index, which is a smalltalk index (i.e. 1-based). |
609 |
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
|
610 |
(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
|
611 |
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
|
612 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
613 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
614 |
currently, we assume that the machines native number format is already |
3323 | 615 |
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
|
616 |
to an IBM 370 or old VAX etc. |
3323 | 617 |
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
|
618 |
no problem. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
619 |
" |
3433 | 620 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
621 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
622 |
^ self floatAt:index put:aFloat |
3323 | 623 |
|
624 |
"Created: / 5.3.1998 / 10:51:11 / stefan" |
|
3459 | 625 |
! ! |
626 |
||
627 |
!UninterpretedBytes methodsFor:'accessing-longlongs'! |
|
628 |
||
629 |
longLongAt:index |
|
630 |
"return the 8-bytes starting at index as a signed Integer. |
|
631 |
The index is a smalltalk index (i.e. 1-based). |
|
632 |
The value is retrieved in the machines natural byte order. |
|
633 |
This may be worth a primitive." |
|
634 |
||
635 |
|w| |
|
636 |
||
637 |
w := self unsignedLongLongAt:index bigEndian:IsBigEndian. |
|
638 |
(w > (16r7FFFFFFFFFFFFFFF)) ifTrue:[ |
|
639 |
^ w - (16r10000000000000000) |
|
640 |
]. |
|
641 |
^ w |
|
642 |
||
643 |
" |
|
644 |
|b| |
|
645 |
b := ByteArray new:4. |
|
646 |
b unsignedLongLongAt:1 put:16rFFFFFFFFFFFFFFFF. |
|
647 |
(b longLongAt:1) |
|
648 |
" |
|
649 |
||
650 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
651 |
"Created: / 5.3.1998 / 14:40:05 / stefan" |
|
652 |
"Modified: / 5.3.1998 / 14:58:32 / stefan" |
|
653 |
! |
|
654 |
||
655 |
longLongAt:index bigEndian:msb |
|
656 |
"return the 8-bytes starting at index as a signed Integer. |
|
657 |
The index is a smalltalk index (i.e. 1-based). |
|
658 |
The value is retrieved in the given byte order. |
|
659 |
This may be worth a primitive." |
|
660 |
||
661 |
|w| |
|
662 |
||
663 |
w := self unsignedLongLongAt:index bigEndian:msb. |
|
664 |
(w > (16r7FFFFFFFFFFFFFFF)) ifTrue:[ |
|
665 |
^ w - (16r10000000000000000) |
|
666 |
]. |
|
667 |
^ w |
|
668 |
||
669 |
" |
|
670 |
|b| |
|
671 |
b := ByteArray new:4. |
|
672 |
b unsignedLongLongAt:1 put:16rFFFFFFFFFFFFFFFF. |
|
673 |
(b longLongAt:1 msb:true) |
|
674 |
" |
|
675 |
||
676 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
677 |
"Created: / 5.3.1998 / 14:40:54 / stefan" |
|
678 |
"Modified: / 9.5.1998 / 01:10:59 / cg" |
|
679 |
! |
|
680 |
||
681 |
longLongAt:byteIndex put:anInteger |
|
682 |
"store a signed longLong (64bit) integer. |
|
683 |
The index is a smalltalk index (i.e. 1-based). |
|
684 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
685 |
||
686 |
^ self signedQuadWordAt:byteIndex put:anInteger |
|
687 |
||
688 |
"Modified: / 3.4.1998 / 13:33:14 / cg" |
|
689 |
"Created: / 3.4.1998 / 13:34:22 / cg" |
|
690 |
! |
|
691 |
||
692 |
longLongAt:byteIndex put:anInteger bigEndian:msb |
|
693 |
"store a signed longLong (64bit) integer. |
|
694 |
The index is a smalltalk index (i.e. 1-based). |
|
695 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
696 |
||
697 |
|v| |
|
698 |
||
699 |
v := anInteger. |
|
700 |
anInteger < 0 ifTrue:[ |
|
701 |
v := v + 16r10000000000000000 |
|
702 |
]. |
|
703 |
^ self unsignedLongLongAt:byteIndex put:v bigEndian:msb |
|
704 |
||
705 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
706 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
707 |
! |
|
708 |
||
709 |
quadWordAt:index MSB:msb |
|
710 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
711 |
The index is a smalltalk index (i.e. 1-based). |
|
712 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
713 |
||
714 |
|l |
|
715 |
bIdx "{ Class: SmallInteger }" |
|
716 |
delta "{ Class: SmallInteger }"| |
|
717 |
||
718 |
l := LargeInteger basicNew numberOfDigits:8. |
|
719 |
msb ifTrue:[ |
|
720 |
bIdx := index + 7. |
|
721 |
delta := -1 |
|
722 |
] ifFalse:[ |
|
723 |
bIdx := index. |
|
724 |
delta := 1 |
|
725 |
]. |
|
726 |
1 to:8 do:[:i | |
|
727 |
l digitAt:i put:(self basicAt:bIdx). |
|
728 |
bIdx := bIdx + delta |
|
729 |
]. |
|
730 |
^ l compressed |
|
731 |
||
732 |
" |
|
733 |
|b| |
|
734 |
||
735 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
736 |
(b quadWordAt:1 MSB:false) printStringRadix:16 |
|
737 |
" |
|
738 |
||
739 |
"Modified: 5.11.1996 / 14:06:21 / cg" |
|
740 |
! |
|
741 |
||
742 |
quadWordAt:index put:anInteger MSB:msb |
|
743 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
744 |
The index is a smalltalk index (i.e. 1-based). |
|
745 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
746 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
747 |
||
748 |
|bIdx "{ Class: SmallInteger }" |
|
749 |
delta "{ Class: SmallInteger }"| |
|
750 |
||
751 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
752 |
^ self elementBoundsError |
|
753 |
]. |
|
754 |
||
755 |
msb ifTrue:[ |
|
756 |
bIdx := index + 7. |
|
757 |
delta := -1 |
|
758 |
] ifFalse:[ |
|
759 |
bIdx := index. |
|
760 |
delta := 1 |
|
761 |
]. |
|
762 |
1 to:8 do:[:i | |
|
763 |
self basicAt:bIdx put:(anInteger digitAt:i). |
|
764 |
bIdx := bIdx + delta. |
|
765 |
]. |
|
766 |
^ anInteger |
|
767 |
||
768 |
" |
|
769 |
|b| |
|
770 |
b := ByteArray new:8. |
|
771 |
b quadWordAtIndex:1 put:16r0807060504030201 MSB:false. |
|
772 |
b inspect |
|
773 |
" |
|
774 |
! |
|
775 |
||
776 |
unsignedLongLongAt:index bigEndian:msb |
|
777 |
"return the 8-bytes starting at index as an (unsigned) Integer. |
|
778 |
The index is a smalltalk index (i.e. 1-based). |
|
779 |
Depending on msb, the value is retrieved MSB or LSB-first." |
|
780 |
||
781 |
|l |
|
782 |
bIdx "{ Class: SmallInteger }" |
|
783 |
delta "{ Class: SmallInteger }"| |
|
784 |
||
785 |
l := LargeInteger basicNew numberOfDigits:8. |
|
786 |
msb ifTrue:[ |
|
787 |
bIdx := index + 7. |
|
788 |
delta := -1 |
|
789 |
] ifFalse:[ |
|
790 |
bIdx := index. |
|
791 |
delta := 1 |
|
792 |
]. |
|
793 |
1 to:8 do:[:i | |
|
794 |
l digitAt:i put:(self basicAt:bIdx). |
|
795 |
bIdx := bIdx + delta |
|
796 |
]. |
|
797 |
^ l compressed |
|
798 |
||
799 |
" |
|
800 |
|b| |
|
801 |
||
802 |
b := ByteArray withAll:#(1 2 3 4 5 6 7 8). |
|
803 |
(b unsignedLongLongAt:1 bigEndian:false) printStringRadix:16 |
|
804 |
" |
|
805 |
||
806 |
"Modified: / 5.11.1996 / 14:06:21 / cg" |
|
807 |
"Modified: / 5.3.1998 / 14:04:44 / stefan" |
|
808 |
! |
|
809 |
||
810 |
unsignedLongLongAt:index put:anInteger |
|
811 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
812 |
The index is a smalltalk index (i.e. 1-based). |
|
813 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
814 |
The value is stored in natural byte order." |
|
815 |
||
816 |
^ self unsignedLongLongAt:index put:anInteger bigEndian:IsBigEndian |
|
817 |
||
818 |
"Created: / 5.3.1998 / 14:44:00 / stefan" |
|
819 |
"Modified: / 5.3.1998 / 15:02:32 / stefan" |
|
820 |
! |
|
821 |
||
822 |
unsignedLongLongAt:index put:anInteger bigEndian:msb |
|
823 |
"set the 8-bytes starting at index from the (unsigned) Integer value. |
|
824 |
The index is a smalltalk index (i.e. 1-based). |
|
825 |
The value must be in the range 0 to 16rFFFFFFFFFFFFFFFF. |
|
826 |
Depending on msb, the value is stored MSB-first or LSB-first." |
|
827 |
||
828 |
|bIdx "{ Class: SmallInteger }" |
|
829 |
delta "{ Class: SmallInteger }"| |
|
830 |
||
831 |
((anInteger < 0) or:[anInteger > 16rFFFFFFFFFFFFFFFF]) ifTrue:[ |
|
832 |
^ self elementBoundsError |
|
833 |
]. |
|
834 |
||
835 |
msb ifTrue:[ |
|
836 |
bIdx := index + 7. |
|
837 |
delta := -1 |
|
838 |
] ifFalse:[ |
|
839 |
bIdx := index. |
|
840 |
delta := 1 |
|
841 |
]. |
|
842 |
1 to:8 do:[:i | |
|
843 |
self basicAt:bIdx put:(anInteger digitAt:i). |
|
844 |
bIdx := bIdx + delta. |
|
845 |
]. |
|
846 |
^ anInteger |
|
847 |
||
848 |
" |
|
849 |
|b| |
|
850 |
b := ByteArray new:8. |
|
851 |
b unsignedLongLongAt:1 put:16r0807060504030201 bigEndian:false. |
|
852 |
b inspect |
|
853 |
" |
|
854 |
||
855 |
"Created: / 5.3.1998 / 14:06:02 / stefan" |
|
856 |
! ! |
|
857 |
||
858 |
!UninterpretedBytes methodsFor:'accessing-longs'! |
|
859 |
||
860 |
doubleWordAt:index |
|
861 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
862 |
The index is a smalltalk index (i.e. 1-based). |
|
863 |
The value is retrieved in the machines natural byte order. |
|
864 |
Subclasses may redefine this for better performance. |
|
865 |
||
866 |
OBSOLETE: please use longAt: / unsignedLongAt:" |
|
867 |
||
868 |
%{ |
|
869 |
/* |
|
870 |
* handle the most common cases fast ... |
|
871 |
*/ |
|
872 |
if (__isSmallInteger(index)) { |
|
873 |
char *cp; |
|
874 |
int sz; |
|
875 |
||
876 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
877 |
if (cp) { |
|
878 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
879 |
||
880 |
if ((idx+(sizeof(int)-1)) < sz) { |
|
881 |
cp += idx; |
|
882 |
/* |
|
883 |
* aligned |
|
884 |
*/ |
|
885 |
if (((INT)cp & (sizeof(int)-1)) == 0) { |
|
886 |
int iVal = ((int *)cp)[0]; |
|
887 |
||
888 |
RETURN (__MKUINT(iVal)); |
|
889 |
} |
|
890 |
} |
|
891 |
} |
|
892 |
} |
|
893 |
%}. |
|
894 |
||
895 |
^ self doubleWordAt:index MSB:IsBigEndian |
|
896 |
||
897 |
" |
|
898 |
|b| |
|
899 |
||
900 |
b := ByteArray withAll:#(1 2 3 4). |
|
901 |
(b doubleWordAt:1) printStringRadix:16 |
|
902 |
" |
|
903 |
||
904 |
"Modified: / 5.3.1998 / 14:57:35 / stefan" |
|
905 |
! |
|
906 |
||
907 |
doubleWordAt:index MSB:msb |
|
908 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
909 |
The index is a smalltalk index (i.e. 1-based). |
|
910 |
The value is retrieved MSB-first, if the msb-arg is true; |
|
911 |
LSB-first otherwise. |
|
912 |
Subclasses may redefine this for better performance." |
|
913 |
||
914 |
|val |
|
915 |
ival "{ XXClass: SmallInteger }" |
|
916 |
i "{ Class: SmallInteger }" |
|
917 |
b1 "{ Class: SmallInteger }" |
|
918 |
b2 "{ Class: SmallInteger }" |
|
919 |
b3 "{ Class: SmallInteger }" |
|
920 |
b4 "{ Class: SmallInteger }"| |
|
921 |
||
922 |
i := index. |
|
923 |
b1 := self at:i. |
|
924 |
b2 := self at:(i+1). |
|
925 |
b3 := self at:(i+2). |
|
926 |
b4 := self at:(i+3). |
|
927 |
||
928 |
msb ifTrue:[ |
|
929 |
ival := b1. |
|
930 |
ival := (ival bitShift:8) + b2. |
|
931 |
ival := (ival bitShift:8) + b3. |
|
932 |
val := (ival bitShift:8) + b4. |
|
933 |
] ifFalse:[ |
|
934 |
ival := b4. |
|
935 |
ival := (ival bitShift:8) + b3. |
|
936 |
ival := (ival bitShift:8) + b2. |
|
937 |
val := (ival bitShift:8) + b1. |
|
938 |
]. |
|
939 |
^ val |
|
940 |
||
941 |
" |
|
942 |
|b| |
|
943 |
||
944 |
b := ByteArray withAll:#(1 2 3 4). |
|
945 |
(b doubleWordAt:1 MSB:true) printStringRadix:16. |
|
946 |
(b doubleWordAt:1 MSB:false) printStringRadix:16 |
|
947 |
" |
|
948 |
||
949 |
"Modified: / 21.1.1998 / 17:42:30 / cg" |
|
950 |
! |
|
951 |
||
952 |
doubleWordAt:index put:value |
|
953 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
954 |
The index is a smalltalk index (i.e. 1-based). |
|
955 |
The value should be in the range 0 to 16rFFFFFFFF |
|
956 |
(for negative values, the stored value is not defined). |
|
957 |
The value is stored in the machines natural byte order. |
|
958 |
Subclasses may redefine this for better performance." |
|
959 |
||
960 |
^ self doubleWordAt:index put:value MSB:IsBigEndian |
|
961 |
||
962 |
" |
|
963 |
|b| |
|
964 |
b := ByteArray new:4. |
|
965 |
b doubleWordAt:1 put:16r04030201. |
|
966 |
b inspect |
|
967 |
" |
|
968 |
||
969 |
"Modified: / 5.3.1998 / 14:57:48 / stefan" |
|
970 |
! |
|
971 |
||
972 |
doubleWordAt:index put:aNumber MSB:msb |
|
973 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
974 |
The index is a smalltalk index (i.e. 1-based). |
|
975 |
The value must be in the range 0 to 16rFFFFFFFF. |
|
976 |
The value is stored MSB-first if msb is true; LSB-first otherwise. |
|
977 |
Subclasses may redefine this for better performance." |
|
978 |
||
979 |
|i "{ Class: SmallInteger }" | |
|
980 |
||
981 |
((aNumber < 0) or:[aNumber > 16rFFFFFFFF]) ifTrue:[ |
|
982 |
^ self elementBoundsError |
|
983 |
]. |
|
984 |
||
985 |
i := index. |
|
986 |
msb ifTrue:[ |
|
987 |
self at:i put:(aNumber digitAt:4). |
|
988 |
self at:(i+1) put:(aNumber digitAt:3). |
|
989 |
self at:(i+2) put:(aNumber digitAt:2). |
|
990 |
self at:(i+3) put:(aNumber digitAt:1). |
|
991 |
] ifFalse:[ |
|
992 |
self at:i put:(aNumber digitAt:1). |
|
993 |
self at:(i+1) put:(aNumber digitAt:2). |
|
994 |
self at:(i+2) put:(aNumber digitAt:3). |
|
995 |
self at:(i+3) put:(aNumber digitAt:4). |
|
996 |
]. |
|
997 |
^ aNumber |
|
998 |
||
999 |
" |
|
1000 |
|b| |
|
1001 |
b := ByteArray new:8. |
|
1002 |
b doubleWordAt:1 put:16r04030201 MSB:true. |
|
1003 |
b doubleWordAt:5 put:16r04030201 MSB:false. |
|
1004 |
b inspect |
|
1005 |
" |
|
1006 |
||
1007 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1008 |
"Modified: / 5.3.1998 / 11:42:17 / stefan" |
|
1009 |
! |
|
1010 |
||
1011 |
doubleWordAtDoubleWordIndex:index |
|
1012 |
"return the unsigned long at index, anInteger. |
|
1013 |
Fetching in the machines natural byte order. |
|
1014 |
Indices are 1-based and scaled as appropriate to allow |
|
1015 |
accessing the memory as an array of doubleWord entries. |
|
1016 |
(i.e. indices are 1, 2, ...)" |
|
1017 |
||
1018 |
^ self doubleWordAtDoubleWordIndex:index MSB:IsBigEndian |
|
1019 |
||
1020 |
"Created: / 21.1.1998 / 17:43:53 / cg" |
|
1021 |
"Modified: / 5.3.1998 / 14:58:06 / stefan" |
|
1022 |
! |
|
1023 |
||
1024 |
doubleWordAtDoubleWordIndex:index MSB:msb |
|
1025 |
"return the unsigned long at index, anInteger. |
|
1026 |
Fetching is MSB if msb is true, LSB otherwise. |
|
1027 |
Indices are 1-based and scaled as appropriate to allow |
|
1028 |
accessing the memory as an array of doubleWord entries. |
|
1029 |
(i.e. indices are 1, 2, ...)" |
|
1030 |
||
1031 |
^ self doubleWordAt:(index - 1 * 4 + 1) MSB:msb |
|
1032 |
||
1033 |
"Created: / 21.1.1998 / 17:44:07 / cg" |
|
1034 |
! |
|
1035 |
||
1036 |
doubleWordAtDoubleWordIndex:index put:value |
|
1037 |
"set the long at index, anInteger. |
|
1038 |
Storing in the machines natural byte order. |
|
1039 |
Indices are 1-based and scaled as appropriate to allow |
|
1040 |
accessing the memory as an array of doubleWord entries. |
|
1041 |
(i.e. indices are 1, 2, ...)" |
|
1042 |
||
1043 |
^ self doubleWordAtDoubleWordIndex:index put:value MSB:IsBigEndian |
|
1044 |
||
1045 |
"Created: / 21.1.1998 / 17:44:13 / cg" |
|
1046 |
"Modified: / 5.3.1998 / 14:58:19 / stefan" |
|
1047 |
! |
|
1048 |
||
1049 |
doubleWordAtDoubleWordIndex:index put:value MSB:msb |
|
1050 |
"set the long at index, anInteger. |
|
1051 |
Storing is MSB if msb is true, LSB otherwise. |
|
1052 |
Indices are 1-based and scaled as appropriate to allow |
|
1053 |
accessing the memory as an array of doubleWord entries. |
|
1054 |
(i.e. indices are 1, 2, ...)" |
|
1055 |
||
1056 |
^ self doubleWordAt:(index - 1 * 4 + 1) put:value MSB:msb |
|
1057 |
||
1058 |
"Created: / 21.1.1998 / 17:44:19 / cg" |
|
3323 | 1059 |
! |
1060 |
||
1061 |
longAt:index |
|
1062 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1063 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1064 |
The value is retrieved in the machines natural byte order. |
1065 |
This may be worth a primitive." |
|
1066 |
||
1067 |
|w| |
|
1068 |
||
3434 | 1069 |
%{ |
1070 |
/* |
|
1071 |
* handle the most common cases fast ... |
|
1072 |
*/ |
|
1073 |
if (__isSmallInteger(index)) { |
|
1074 |
char *cp; |
|
1075 |
int sz; |
|
1076 |
||
1077 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1078 |
if (cp) { |
|
1079 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
1080 |
||
1081 |
if ((idx+(sizeof(float)-1)) < sz) { |
|
1082 |
cp += idx; |
|
1083 |
/* |
|
1084 |
* aligned |
|
1085 |
*/ |
|
1086 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
1087 |
INT iVal = ((int *)cp)[0]; |
|
1088 |
||
1089 |
RETURN (__MKINT(iVal)); |
|
1090 |
} |
|
1091 |
} |
|
1092 |
} |
|
1093 |
} |
|
1094 |
%}. |
|
1095 |
||
3323 | 1096 |
w := self unsignedLongAt:index. |
1097 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
1098 |
^ w - (16r100000000) |
|
1099 |
]. |
|
1100 |
^ w |
|
1101 |
||
1102 |
" |
|
1103 |
|b| |
|
1104 |
b := ByteArray new:4. |
|
1105 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1106 |
(b longAt:1) |
|
1107 |
" |
|
1108 |
||
1109 |
"Modified: / 1.7.1996 / 21:11:28 / cg" |
|
1110 |
"Modified: / 5.3.1998 / 12:06:28 / stefan" |
|
1111 |
! |
|
1112 |
||
1113 |
longAt:index bigEndian:msb |
|
1114 |
"return the 4-bytes starting at index as a signed Integer. |
|
3433 | 1115 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1116 |
Depending on msb, the value is retrieved MSB-first or LSB-first. |
1117 |
This may be worth a primitive." |
|
1118 |
||
1119 |
|w| |
|
1120 |
||
1121 |
w := self unsignedLongAt:index bigEndian:msb. |
|
1122 |
(w > (16r7FFFFFFF)) ifTrue:[ |
|
1123 |
^ w - (16r100000000) |
|
1124 |
]. |
|
1125 |
^ w |
|
1126 |
||
1127 |
" |
|
1128 |
|b| |
|
1129 |
b := ByteArray new:4. |
|
1130 |
b unsignedLongAt:1 put:16rFFFFFFFF. |
|
1131 |
(b longAt:1) |
|
1132 |
" |
|
1133 |
||
1134 |
"Modified: / 1.7.1996 / 21:11:33 / cg" |
|
1135 |
"Created: / 5.3.1998 / 14:02:03 / stefan" |
|
1136 |
! |
|
1137 |
||
1138 |
longAt:index put:value |
|
1139 |
"set the 4-bytes starting at index from the signed Integer value. |
|
3433 | 1140 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1141 |
The value is stored in the machines natural byte order. |
1142 |
This may be worth a primitive. |
|
1143 |
||
1144 |
This is the ST80 version of #signedDoubleWordAt:put:" |
|
1145 |
||
1146 |
|v| |
|
1147 |
||
3434 | 1148 |
%{ |
1149 |
/* |
|
1150 |
* handle the most common cases fast ... |
|
1151 |
*/ |
|
1152 |
if (__isSmallInteger(index)) { |
|
1153 |
char *cp; |
|
1154 |
int sz; |
|
1155 |
||
1156 |
__fetchBytePointerAndSize__(self, &cp, &sz); |
|
1157 |
if (cp) { |
|
1158 |
unsigned INT idx = ((unsigned INT)__intVal(index)) - 1; |
|
1159 |
||
1160 |
if ((idx+(sizeof(float)-1)) < sz) { |
|
1161 |
cp += idx; |
|
1162 |
/* |
|
1163 |
* aligned |
|
1164 |
*/ |
|
1165 |
if (((INT)cp & (sizeof(float)-1)) == 0) { |
|
1166 |
int __v; |
|
1167 |
||
1168 |
if (__isSmallInteger(value)) { |
|
1169 |
((int *)cp)[0] = __intVal(value); |
|
1170 |
RETURN (value); |
|
1171 |
} |
|
1172 |
if (__v = __signedLongIntVal(value)) { |
|
1173 |
((int *)cp)[0] = __v; |
|
1174 |
RETURN (value); |
|
1175 |
} |
|
1176 |
} |
|
1177 |
} |
|
1178 |
} |
|
1179 |
} |
|
1180 |
%}. |
|
1181 |
||
3323 | 1182 |
value >= 0 ifTrue:[ |
1183 |
v := value |
|
1184 |
] ifFalse:[ |
|
1185 |
v := value + 16r100000000 |
|
1186 |
]. |
|
1187 |
self unsignedLongAt:index put:v. |
|
1188 |
^ value |
|
1189 |
||
1190 |
" |
|
1191 |
|b| |
|
1192 |
b := ByteArray new:4. |
|
1193 |
b longAt:1 put:-1. |
|
1194 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1195 |
" |
|
1196 |
||
1197 |
"Modified: / 1.7.1996 / 21:11:39 / cg" |
|
1198 |
"Created: / 5.3.1998 / 10:57:18 / stefan" |
|
1199 |
! |
|
1200 |
||
3444 | 1201 |
longAt:byteIndex put:anInteger bigEndian:msb |
1202 |
"store a signed long (32bit) integer. |
|
1203 |
The index is a smalltalk index (i.e. 1-based). |
|
1204 |
Same as #signedQuadWordAt:put: - for ST80 compatibility." |
|
1205 |
||
1206 |
|v| |
|
1207 |
||
1208 |
v := anInteger. |
|
1209 |
anInteger < 0 ifTrue:[ |
|
1210 |
v := v + 16r100000000 |
|
1211 |
]. |
|
1212 |
^ self unsignedLongAt:byteIndex put:v bigEndian:msb |
|
1213 |
||
1214 |
"Created: / 9.5.1998 / 01:10:24 / cg" |
|
1215 |
"Modified: / 9.5.1998 / 01:13:34 / cg" |
|
1216 |
! |
|
1217 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1218 |
signedDoubleWordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1219 |
"return the 4-bytes starting at index as a signed Integer. |
3433 | 1220 |
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
|
1221 |
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
|
1222 |
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
|
1223 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1224 |
|w| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1225 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1226 |
w := self doubleWordAt:index. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1227 |
(w > (16r7FFFFFFF)) ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1228 |
^ w - (16r100000000) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1229 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1230 |
^ w |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1231 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1232 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1233 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1234 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1235 |
b doubleWordAt:1 put:16rFFFFFFFF. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1236 |
(b signedDoubleWordAt:1) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1237 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1238 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1239 |
"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
|
1240 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1241 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1242 |
signedDoubleWordAt:index MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1243 |
"return the 4-bytes starting at index as a signed Integer. |
3433 | 1244 |
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
|
1245 |
Depending on msb, the value is retrieved 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
|
1246 |
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
|
1247 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1248 |
|w| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1249 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1250 |
w := self doubleWordAt:index MSB:msb. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1251 |
(w > (16r7FFFFFFF)) ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1252 |
^ w - (16r100000000) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1253 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1254 |
^ w |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1255 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1256 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1257 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1258 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1259 |
b doubleWordAt:1 put:16rFFFFFFFF. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1260 |
(b signedDoubleWordAt:1) |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1261 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1262 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1263 |
"Modified: 1.7.1996 / 21:11:33 / cg" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1264 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1265 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1266 |
signedDoubleWordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1267 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1268 |
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
|
1269 |
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
|
1270 |
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
|
1271 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1272 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1273 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1274 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1275 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1276 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1277 |
v := value + 16r100000000 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1278 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1279 |
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
|
1280 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1281 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1282 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1283 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1284 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1285 |
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
|
1286 |
(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
|
1287 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1288 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1289 |
"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
|
1290 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1291 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1292 |
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
|
1293 |
"set the 4-bytes starting at index from the signed Integer value. |
3433 | 1294 |
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
|
1295 |
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
|
1296 |
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
|
1297 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1298 |
|v| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1299 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1300 |
value >= 0 ifTrue:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1301 |
v := value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1302 |
] ifFalse:[ |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1303 |
v := value + 16r100000000 |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1304 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1305 |
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
|
1306 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1307 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1308 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1309 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1310 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1311 |
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
|
1312 |
(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
|
1313 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1314 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1315 |
"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
|
1316 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1317 |
|
3323 | 1318 |
unsignedLongAt:index |
1319 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1320 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1321 |
The value is retrieved in the machines natural byte order. |
1322 |
Subclasses may redefine this for better performance." |
|
1323 |
||
1324 |
^ self unsignedLongAt:index bigEndian:IsBigEndian |
|
1325 |
||
1326 |
" |
|
1327 |
|b| |
|
1328 |
||
1329 |
b := ByteArray withAll:#(1 2 3 4). |
|
1330 |
(b unsignedLongAt:1) printStringRadix:16 |
|
1331 |
" |
|
1332 |
||
1333 |
"Created: / 5.3.1998 / 11:56:53 / stefan" |
|
1334 |
"Modified: / 5.3.1998 / 14:58:48 / stefan" |
|
1335 |
! |
|
1336 |
||
1337 |
unsignedLongAt:index bigEndian:msb |
|
1338 |
"return the 4-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1339 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1340 |
The value is retrieved MSB-first, if the msb-arg is true; |
1341 |
LSB-first otherwise. |
|
1342 |
Subclasses may redefine this for better performance." |
|
1343 |
||
1344 |
|val |
|
1345 |
ival "{ Class: SmallInteger }" |
|
1346 |
i "{ Class: SmallInteger }" |
|
1347 |
b1 "{ Class: SmallInteger }" |
|
1348 |
b2 "{ Class: SmallInteger }" |
|
1349 |
b3 "{ Class: SmallInteger }" |
|
1350 |
b4 "{ Class: SmallInteger }"| |
|
1351 |
||
1352 |
i := index. |
|
1353 |
b1 := self at:i. |
|
1354 |
b2 := self at:(i+1). |
|
1355 |
b3 := self at:(i+2). |
|
1356 |
b4 := self at:(i+3). |
|
1357 |
||
1358 |
msb ifTrue:[ |
|
1359 |
ival := b1. |
|
1360 |
ival := (ival bitShift:8) + b2. |
|
1361 |
ival := (ival bitShift:8) + b3. |
|
1362 |
val := (ival * 256) + b4. |
|
1363 |
] ifFalse:[ |
|
1364 |
ival := b4. |
|
1365 |
ival := (ival bitShift:8) + b3. |
|
1366 |
ival := (ival bitShift:8) + b2. |
|
1367 |
val := (ival * 256) + b1. |
|
1368 |
]. |
|
1369 |
^ val |
|
1370 |
||
1371 |
" |
|
1372 |
|b| |
|
1373 |
||
1374 |
b := ByteArray withAll:#(1 2 3 4). |
|
1375 |
(b unsignedLongAt:1 bigEndian:true) printStringRadix:16. |
|
1376 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1377 |
" |
|
1378 |
||
1379 |
"Modified: / 21.1.1998 / 17:42:30 / cg" |
|
1380 |
"Created: / 5.3.1998 / 11:46:05 / stefan" |
|
1381 |
! |
|
1382 |
||
1383 |
unsignedLongAt:index put:value |
|
1384 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1385 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1386 |
The value should be in the range 0 to 16rFFFFFFFF |
1387 |
(for negative values, the stored value is not defined). |
|
1388 |
The value is stored in the machines natural byte order. |
|
1389 |
Subclasses may redefine this for better performance." |
|
1390 |
||
1391 |
^ self unsignedLongAt:index put:value bigEndian:IsBigEndian |
|
1392 |
||
1393 |
" |
|
1394 |
|b| |
|
1395 |
b := ByteArray new:4. |
|
1396 |
b unsignedLongAt:1 put:16r04030201. |
|
1397 |
b inspect |
|
1398 |
" |
|
1399 |
||
1400 |
"Created: / 5.3.1998 / 11:57:44 / stefan" |
|
1401 |
"Modified: / 5.3.1998 / 14:58:59 / stefan" |
|
1402 |
! |
|
1403 |
||
1404 |
unsignedLongAt:index put:aNumber bigEndian:msb |
|
1405 |
"set the 4-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1406 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1407 |
The value must be in the range 0 to 16rFFFFFFFF. |
1408 |
The value is stored MSB-first if msb is true; LSB-first otherwise. |
|
1409 |
Subclasses may redefine this for better performance." |
|
1410 |
||
1411 |
|i "{ Class: SmallInteger }" | |
|
1412 |
||
1413 |
((aNumber < 0) or:[aNumber > 16rFFFFFFFF]) ifTrue:[ |
|
1414 |
^ self elementBoundsError |
|
1415 |
]. |
|
1416 |
||
1417 |
i := index. |
|
1418 |
msb ifTrue:[ |
|
1419 |
self at:i put:(aNumber digitAt:4). |
|
1420 |
self at:(i+1) put:(aNumber digitAt:3). |
|
1421 |
self at:(i+2) put:(aNumber digitAt:2). |
|
1422 |
self at:(i+3) put:(aNumber digitAt:1). |
|
1423 |
] ifFalse:[ |
|
1424 |
self at:i put:(aNumber digitAt:1). |
|
1425 |
self at:(i+1) put:(aNumber digitAt:2). |
|
1426 |
self at:(i+2) put:(aNumber digitAt:3). |
|
1427 |
self at:(i+3) put:(aNumber digitAt:4). |
|
1428 |
]. |
|
1429 |
^ aNumber |
|
1430 |
||
1431 |
" |
|
1432 |
|b| |
|
1433 |
b := ByteArray new:8. |
|
1434 |
b unsignedLongAt:1 put:16r04030201 bigEndian:true. |
|
1435 |
(b unsignedLongAt:1 bigEndian:false) printStringRadix:16 |
|
1436 |
" |
|
1437 |
||
1438 |
"Modified: / 21.1.1998 / 17:43:34 / cg" |
|
1439 |
"Created: / 5.3.1998 / 11:43:53 / stefan" |
|
1440 |
"Modified: / 5.3.1998 / 11:47:30 / stefan" |
|
3459 | 1441 |
! ! |
1442 |
||
1443 |
!UninterpretedBytes methodsFor:'accessing-shorts'! |
|
1444 |
||
1445 |
shortAt:index |
|
1446 |
"return the 2-bytes starting at index as a signed Integer. |
|
1447 |
The index is a smalltalk index (i.e. 1-based). |
|
1448 |
The value is retrieved in the machines natural byte order. |
|
1449 |
This may be worth a primitive. |
|
1450 |
This is the ST80 equivalent of #signedWordAt:" |
|
1451 |
||
1452 |
^ (self unsignedShortAt:index) signExtendedShortValue |
|
1453 |
||
1454 |
" |
|
1455 |
|b| |
|
1456 |
b := ByteArray new:2. |
|
1457 |
b unsignedShortAt:1 put:16rFFFF. |
|
1458 |
b shortAt:1 |
|
1459 |
" |
|
1460 |
||
1461 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
|
1462 |
"Created: / 5.3.1998 / 10:59:57 / stefan" |
|
1463 |
"Modified: / 5.3.1998 / 23:39:38 / stefan" |
|
3323 | 1464 |
! |
1465 |
||
3459 | 1466 |
shortAt:index bigEndian:msb |
1467 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1468 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1469 |
The value is retrieved MSB-first, if the msb-arg is true; |
1470 |
LSB-first otherwise. |
|
1471 |
This is the ST80 equivalent of #signedWordAt:" |
|
1472 |
||
1473 |
^ (self unsignedShortAt:index bigEndian:msb) signExtendedShortValue |
|
1474 |
||
1475 |
" |
|
1476 |
|b| |
|
1477 |
b := ByteArray new:2. |
|
1478 |
b unsignedShortAt:1 put:16rFFFF. |
|
1479 |
b shortAt:1 |
|
1480 |
" |
|
3323 | 1481 |
|
3459 | 1482 |
"Modified: / 1.7.1996 / 21:14:38 / cg" |
1483 |
"Created: / 5.3.1998 / 23:41:21 / stefan" |
|
1484 |
! |
|
1485 |
||
1486 |
shortAt:index put:value |
|
1487 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1488 |
The index is a smalltalk index (i.e. 1-based). |
|
1489 |
The stored value must be in the range -32768 .. +32676. |
|
1490 |
The value is stored in the machines natural byteorder. |
|
1491 |
This may be worth a primitive. |
|
1492 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1493 |
||
3323 | 1494 |
|
3459 | 1495 |
|v| |
1496 |
||
1497 |
value >= 0 ifTrue:[ |
|
1498 |
v := value |
|
3323 | 1499 |
] ifFalse:[ |
3459 | 1500 |
v := 16r10000 + value |
3323 | 1501 |
]. |
3459 | 1502 |
self unsignedShortAt:index put:v. |
1503 |
^ value |
|
1504 |
||
1505 |
" |
|
1506 |
|b| |
|
1507 |
b := ByteArray new:6. |
|
1508 |
b shortAt:1 put:-1. |
|
1509 |
b shortAt:3 put:-2. |
|
1510 |
b shortAt:5 put:0. |
|
1511 |
b inspect |
|
1512 |
" |
|
1513 |
||
1514 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
|
1515 |
"Created: / 5.3.1998 / 11:02:05 / stefan" |
|
1516 |
! |
|
1517 |
||
1518 |
signedWordAt:index |
|
1519 |
"return the 2-bytes starting at index as a signed Integer. |
|
1520 |
The index is a smalltalk index (i.e. 1-based). |
|
1521 |
The value is retrieved in the machines natural byte order. |
|
1522 |
This may be worth a primitive." |
|
1523 |
||
1524 |
^ (self wordAt:index) signExtendedShortValue |
|
3323 | 1525 |
|
1526 |
" |
|
1527 |
|b| |
|
3459 | 1528 |
b := ByteArray new:2. |
1529 |
b wordAt:1 put:16rFFFF. |
|
1530 |
b signedWordAt:1 |
|
3323 | 1531 |
" |
1532 |
||
3459 | 1533 |
"Modified: 1.7.1996 / 21:14:38 / cg" |
3323 | 1534 |
! |
1535 |
||
3459 | 1536 |
signedWordAt:index MSB:msb |
1537 |
"return the 2-bytes starting at index as a signed Integer. |
|
3433 | 1538 |
The index is a smalltalk index (i.e. 1-based). |
3459 | 1539 |
The value is retrieved MSB-first if the msb-arg is true, |
1540 |
LSB-first otherwise. |
|
1541 |
This may be worth a primitive." |
|
3323 | 1542 |
|
3459 | 1543 |
^ (self wordAt:index MSB:msb) signExtendedShortValue |
3323 | 1544 |
|
1545 |
" |
|
1546 |
|b| |
|
3459 | 1547 |
b := ByteArray new:2. |
1548 |
b wordAt:1 put:16r0080. |
|
1549 |
b signedWordAt:1 MSB:true. |
|
1550 |
b signedWordAt:1 MSB:false. |
|
1551 |
" |
|
1552 |
||
1553 |
"Modified: 1.7.1996 / 21:15:57 / cg" |
|
1554 |
! |
|
1555 |
||
1556 |
signedWordAt:index put:value |
|
1557 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1558 |
The index is a smalltalk index (i.e. 1-based). |
|
1559 |
The stored value must be in the range -32768 .. +32676. |
|
1560 |
The value is stored in the machines natural byteorder. |
|
1561 |
This may be worth a primitive. |
|
1562 |
This is the ST80 equivalent of #signedWordAt:put:" |
|
1563 |
||
1564 |
||
1565 |
|v| |
|
1566 |
||
1567 |
value >= 0 ifTrue:[ |
|
1568 |
v := value |
|
1569 |
] ifFalse:[ |
|
1570 |
v := 16r10000 + value |
|
1571 |
]. |
|
1572 |
self unsignedShortAt:index put:v. |
|
1573 |
^ value |
|
1574 |
||
1575 |
" |
|
1576 |
|b| |
|
1577 |
b := ByteArray new:6. |
|
1578 |
b shortAt:1 put:-1. |
|
1579 |
b shortAt:3 put:-2. |
|
1580 |
b shortAt:5 put:0. |
|
3323 | 1581 |
b inspect |
1582 |
" |
|
1583 |
||
3459 | 1584 |
"Modified: / 1.7.1996 / 21:12:07 / cg" |
1585 |
"Modified: / 5.3.1998 / 11:01:30 / stefan" |
|
1586 |
! |
|
1587 |
||
1588 |
signedWordAt:index put:value MSB:msb |
|
1589 |
"set the 2-bytes starting at index from the signed Integer value. |
|
1590 |
The index is a smalltalk index (i.e. 1-based). |
|
1591 |
The stored value must be in the range -32768 .. +32676. |
|
1592 |
The value is stored MSB-first, if the msb-arg is true; |
|
1593 |
LSB-first otherwise. |
|
1594 |
This may be worth a primitive." |
|
1595 |
||
1596 |
|v| |
|
1597 |
||
1598 |
value >= 0 ifTrue:[ |
|
1599 |
v := value |
|
1600 |
] ifFalse:[ |
|
1601 |
v := 16r10000 + value |
|
1602 |
]. |
|
1603 |
self wordAt:index put:v MSB:msb. |
|
1604 |
^ value |
|
1605 |
||
1606 |
" |
|
1607 |
|b| |
|
1608 |
b := ByteArray new:4. |
|
1609 |
b signedWordAt:1 put:-1. |
|
1610 |
b signedWordAt:3 put:-2. |
|
1611 |
b inspect |
|
1612 |
" |
|
1613 |
||
1614 |
"Modified: 1.7.1996 / 21:12:13 / cg" |
|
3323 | 1615 |
! |
1616 |
||
1617 |
unsignedShortAt:index |
|
1618 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1619 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1620 |
The value is retrieved in the machines natural byte order |
1621 |
Subclasses may redefine this for better performance. |
|
1622 |
This is the ST80 equivalent of #wordAt:" |
|
1623 |
||
1624 |
||
1625 |
^ self unsignedShortAt:index bigEndian:IsBigEndian |
|
1626 |
||
1627 |
"Created: / 5.3.1998 / 11:38:25 / stefan" |
|
1628 |
"Modified: / 5.3.1998 / 14:59:25 / stefan" |
|
1629 |
! |
|
1630 |
||
1631 |
unsignedShortAt:index bigEndian:msb |
|
1632 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
|
3433 | 1633 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1634 |
The value is retrieved MSB-first (high 8 bits at lower index) if msb is true; |
1635 |
LSB-first (i.e. low 8-bits at lower byte index) if its false)" |
|
1636 |
||
1637 |
|b1 "{ Class: SmallInteger }" |
|
1638 |
b2 "{ Class: SmallInteger }"| |
|
1639 |
||
1640 |
b1 := self at:index. |
|
1641 |
b2 := self at:(index + 1). |
|
1642 |
msb ifTrue:[ |
|
1643 |
^ (b1 bitShift:8) + b2 |
|
1644 |
]. |
|
1645 |
^ (b2 bitShift:8) + b1 |
|
1646 |
||
1647 |
"Modified: / 21.1.1998 / 17:46:07 / cg" |
|
1648 |
"Created: / 5.3.1998 / 11:49:29 / stefan" |
|
1649 |
! |
|
1650 |
||
1651 |
unsignedShortAt:index put:value |
|
1652 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1653 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1654 |
The stored value must be in the range 0 .. 16rFFFF. |
1655 |
The value is stored in the machines natural byteorder." |
|
1656 |
||
1657 |
^ self unsignedShortAt:index put:value bigEndian:IsBigEndian |
|
1658 |
||
1659 |
" |
|
1660 |
|b| |
|
1661 |
b := ByteArray new:4. |
|
1662 |
b unsignedShortAt:1 put:16r0102. |
|
1663 |
b unsignedShortAt:3 put:16r0304. |
|
1664 |
b inspect |
|
1665 |
" |
|
1666 |
||
1667 |
"Created: / 5.3.1998 / 11:54:52 / stefan" |
|
1668 |
"Modified: / 5.3.1998 / 14:59:38 / stefan" |
|
1669 |
! |
|
1670 |
||
1671 |
unsignedShortAt:index put:value bigEndian:msb |
|
1672 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
|
3433 | 1673 |
The index is a smalltalk index (i.e. 1-based). |
3323 | 1674 |
The stored value must be in the range 0 .. 16rFFFF. |
1675 |
The value is stored LSB-first (i.e. the low 8bits are stored at the |
|
1676 |
lower index) if msb is false, MSB-first otherwise" |
|
1677 |
||
1678 |
|b1 b2 |
|
1679 |
iVal "{ Class: SmallInteger }"| |
|
1680 |
||
1681 |
iVal := value. |
|
1682 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
|
1683 |
^ self elementBoundsError |
|
1684 |
]. |
|
1685 |
msb ifTrue:[ |
|
1686 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
|
1687 |
b2 := (iVal bitAnd:16rFF). |
|
1688 |
] ifFalse:[ |
|
1689 |
b1 := (iVal bitAnd:16rFF). |
|
1690 |
b2 := ((iVal bitShift:-8) bitAnd:16rFF). |
|
1691 |
]. |
|
1692 |
self at:index put:b1. |
|
1693 |
self at:index+1 put:b2. |
|
1694 |
^ value |
|
1695 |
||
1696 |
" |
|
1697 |
|b| |
|
1698 |
b := ByteArray new:8. |
|
1699 |
b unsignedShortAt:1 put:16r0102 bigEndian:false. |
|
1700 |
b unsignedShortAt:3 put:16r0304 bigEndian:false. |
|
1701 |
b unsignedShortAt:5 put:16r0102 bigEndian:true. |
|
1702 |
b unsignedShortAt:7 put:16r0304 bigEndian:true. |
|
1703 |
b inspect |
|
1704 |
" |
|
1705 |
||
1706 |
"Modified: / 21.1.1998 / 17:48:15 / cg" |
|
1707 |
"Modified: / 5.3.1998 / 11:52:28 / stefan" |
|
1708 |
! |
|
1709 |
||
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1710 |
wordAt:index |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1711 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 1712 |
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
|
1713 |
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
|
1714 |
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
|
1715 |
|
3323 | 1716 |
^ self wordAt:index MSB:IsBigEndian |
1717 |
||
1718 |
"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
|
1719 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1720 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1721 |
wordAt:index MSB:msb |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1722 |
"return the 2-bytes starting at index as an (unsigned) Integer. |
3433 | 1723 |
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
|
1724 |
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
|
1725 |
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
|
1726 |
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
|
1727 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1728 |
|b1 "{ Class: SmallInteger }" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1729 |
b2 "{ Class: SmallInteger }"| |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1730 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1731 |
b1 := self at:index. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1732 |
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
|
1733 |
msb ifTrue:[ |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1734 |
^ (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
|
1735 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1736 |
^ (b2 bitShift:8) + b1 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1737 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1738 |
"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
|
1739 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1740 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1741 |
wordAt:index put:value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1742 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 1743 |
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
|
1744 |
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
|
1745 |
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
|
1746 |
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
|
1747 |
|
3323 | 1748 |
^ self wordAt:index put:value MSB:IsBigEndian |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1749 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1750 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1751 |
|b| |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1752 |
b := ByteArray new:4. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1753 |
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
|
1754 |
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
|
1755 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1756 |
" |
3323 | 1757 |
|
1758 |
"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
|
1759 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1760 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1761 |
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
|
1762 |
"set the 2-bytes starting at index from the (unsigned) Integer value. |
3433 | 1763 |
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
|
1764 |
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
|
1765 |
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
|
1766 |
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
|
1767 |
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
|
1768 |
|
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1769 |
|b1 b2 |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1770 |
iVal "{ Class: SmallInteger }"| |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1771 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1772 |
iVal := value. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1773 |
((iVal < 0) or:[iVal > 16rFFFF]) ifTrue:[ |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1774 |
^ self elementBoundsError |
3207
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1775 |
]. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1776 |
msb ifTrue:[ |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1777 |
b1 := ((iVal bitShift:-8) bitAnd:16rFF). |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1778 |
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
|
1779 |
] ifFalse:[ |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1780 |
b1 := (iVal bitAnd:16rFF). |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1781 |
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
|
1782 |
]. |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1783 |
self at:index put:b1. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1784 |
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
|
1785 |
^ value |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1786 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1787 |
" |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1788 |
b := ByteArray new:8. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1789 |
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
|
1790 |
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
|
1791 |
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
|
1792 |
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
|
1793 |
b inspect |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1794 |
" |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1795 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1796 |
"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
|
1797 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1798 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1799 |
wordAtWordIndex:index |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1800 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1801 |
Fetching in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1802 |
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
|
1803 |
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
|
1804 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1805 |
|
3323 | 1806 |
^ self wordAtWordIndex:index MSB:IsBigEndian |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1807 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1808 |
"Created: / 21.1.1998 / 17:48:26 / cg" |
3323 | 1809 |
"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
|
1810 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1811 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1812 |
wordAtWordIndex:index MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1813 |
"return the unsigned short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1814 |
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
|
1815 |
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
|
1816 |
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
|
1817 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1818 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1819 |
^ 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
|
1820 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1821 |
"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
|
1822 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1823 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1824 |
wordAtWordIndex:index put:value |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1825 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1826 |
Storing in the machines natural byte order. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1827 |
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
|
1828 |
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
|
1829 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1830 |
|
3323 | 1831 |
^ self wordAtWordIndex:index put:value MSB:IsBigEndian |
3212
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1832 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1833 |
"Created: / 21.1.1998 / 17:48:34 / cg" |
3323 | 1834 |
"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
|
1835 |
! |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1836 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1837 |
wordAtWordIndex:index put:value MSB:msb |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1838 |
"set the short at index, anInteger. |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1839 |
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
|
1840 |
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
|
1841 |
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
|
1842 |
(i.e. indices are 1, 2, ...)" |
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1843 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1844 |
^ 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
|
1845 |
|
b8cc18f8691b
moved some of ExtBytes protocol to here.
Claus Gittinger <cg@exept.de>
parents:
3209
diff
changeset
|
1846 |
"Created: / 21.1.1998 / 17:48:38 / cg" |
3459 | 1847 |
! ! |
1848 |
||
1849 |
!UninterpretedBytes methodsFor:'accessing-strings'! |
|
1850 |
||
1851 |
stringAt:index |
|
1852 |
"return a string starting at index up to the 0-byte. |
|
1853 |
The index is a smalltalk index (i.e. 1-based)." |
|
1854 |
||
1855 |
|stream i "{ Class: SmallInteger }" c| |
|
1856 |
||
1857 |
stream := WriteStream on:''. |
|
1858 |
i := index. |
|
1859 |
[(c := self basicAt:i) ~~ 0] whileTrue:[ |
|
1860 |
stream nextPut:(Character value:c). |
|
1861 |
i := i + 1. |
|
1862 |
]. |
|
1863 |
^ stream contents |
|
1864 |
||
1865 |
"Created: / 21.1.1998 / 17:44:50 / cg" |
|
1866 |
! |
|
1867 |
||
1868 |
stringAt:index put:aString |
|
1869 |
"copy aString to the externalBytes, starting at index up to |
|
1870 |
(and including) the 0-byte. |
|
1871 |
The index is a smalltalk index (i.e. 1-based)." |
|
1872 |
||
1873 |
|i "{ Class: SmallInteger }"| |
|
1874 |
||
1875 |
i := index. |
|
1876 |
aString do:[:aChar | |
|
1877 |
self basicAt:i put:aChar asciiValue. |
|
1878 |
i := i + 1. |
|
1879 |
]. |
|
1880 |
self basicAt:i put:0. |
|
1881 |
^ aString |
|
1882 |
||
1883 |
" |
|
1884 |
|bytes| |
|
1885 |
||
1886 |
bytes := ExternalBytes new:10. |
|
1887 |
bytes stringAt:1 put:'hello'. |
|
1888 |
1 to:bytes size do:[:i | |
|
1889 |
Transcript showCR:(bytes at:i) |
|
1890 |
] |
|
1891 |
" |
|
1892 |
||
1893 |
"Created: / 21.1.1998 / 17:45:02 / cg" |
|
1894 |
! |
|
1895 |
||
1896 |
stringAt:index size:maxSize |
|
1897 |
"return a string starting at index up to maxSize, or a 0-byte. |
|
1898 |
The index is a smalltalk index (i.e. 1-based)." |
|
1899 |
||
1900 |
|stream c i "{ Class: SmallInteger }"| |
|
1901 |
||
1902 |
stream := WriteStream on:(String new:maxSize). |
|
1903 |
i := index. |
|
1904 |
[(i <= maxSize) |
|
1905 |
and:[(c := self basicAt:i) ~~ 0]] whileTrue:[ |
|
1906 |
stream nextPut:(Character value:c). |
|
1907 |
i := i + 1. |
|
1908 |
]. |
|
1909 |
^ stream contents |
|
1910 |
||
1911 |
"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
|
1912 |
! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1913 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1914 |
zeroByteStringAt:index maximumSize:count |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1915 |
"extract a zeroByte-delimited string, given initial index and |
3433 | 1916 |
maximum number of characters (bytes). |
1917 |
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
|
1918 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1919 |
|bytes idx| |
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 |
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
|
1922 |
idx := bytes indexOf:0. |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1923 |
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
|
1924 |
^ bytes asString |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1925 |
|
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1926 |
"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
|
1927 |
! ! |
a6e3c98e2a8e
merged common protocol of ByteArray and ExternalBytes into this class.
Claus Gittinger <cg@exept.de>
parents:
1294
diff
changeset
|
1928 |
|
3363
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1929 |
!UninterpretedBytes methodsFor:'misc'! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1930 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1931 |
swapLongAt:byteIndex |
3433 | 1932 |
"swap the byteOrder of a long. |
1933 |
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
|
1934 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1935 |
|t| |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1936 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1937 |
t := self byteAt:byteIndex. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1938 |
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
|
1939 |
self byteAt:(byteIndex + 3) put:t. |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1940 |
t := self byteAt:(byteIndex + 1). |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1941 |
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
|
1942 |
self byteAt:(byteIndex + 2) put:t |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1943 |
|
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1944 |
"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
|
1945 |
! ! |
3bb61f364fe3
added #from: and #swapLongAt: for ST80 compatibility.
Claus Gittinger <cg@exept.de>
parents:
3323
diff
changeset
|
1946 |
|
3323 | 1947 |
!UninterpretedBytes methodsFor:'queries'! |
1948 |
||
1949 |
sizeInBytes |
|
1950 |
"return the number of 8-bit bytes in the receiver. |
|
1951 |
This is needed since subclasse may redefine #size (TwoByteString)" |
|
1952 |
||
1953 |
^ super size |
|
1954 |
||
1955 |
"Created: / 5.3.1998 / 10:41:13 / stefan" |
|
1956 |
! ! |
|
1957 |
||
695 | 1958 |
!UninterpretedBytes class methodsFor:'documentation'! |
1959 |
||
1960 |
version |
|
3936 | 1961 |
^ '$Header: /cvs/stx/stx/libbasic/Attic/UIBytes.st,v 1.31 1998-11-24 17:04:36 cg Exp $' |
695 | 1962 |
! ! |
3323 | 1963 |
UninterpretedBytes initialize! |