source: trunk/src/NTDLL/large_int.asm@ 7463

Last change on this file since 7463 was 6372, checked in by sandervl, 24 years ago

64 bits math functions replaced
File size: 8.1 KB
Line 
1 extrn _dllentry:dword
2 title large_int.c
3 .386
4 .387
5CODE32 segment para use32 public 'CODE'
6CODE32 ends
7DATA32 segment para use32 public 'DATA'
8DATA32 ends
9CONST32_RO segment para use32 public 'CONST'
10CONST32_RO ends
11BSS32 segment para use32 public 'BSS'
12BSS32 ends
13DGROUP group BSS32, DATA32
14 assume cs:FLAT, ds:FLAT, ss:FLAT, es:FLAT
15CODE32 segment
16 extrn __modu64:proc
17
18; 224 ULONGLONG WINAPI _aullrem( ULONGLONG a, ULONGLONG b )
19 align 4
20
21 public __aullrem@16
22__aullrem@16 proc
23
24; 226 return a % b;
25 mov ecx,[esp+010h]; b
26 push ecx
27 mov eax,[esp+08h]; a
28 mov edx,[esp+0ch]; a
29 mov ecx,[esp+010h]; b
30 call __modu64
31 pop ecx
32 ret 010h
33__aullrem@16 endp
34 extrn __divu64:proc
35
36; 215 ULONGLONG WINAPI _aulldiv( ULONGLONG a, ULONGLONG b )
37 align 4h
38
39 public __aulldiv@16
40__aulldiv@16 proc
41
42; 217 return a / b;
43 mov ecx,[esp+010h]; b
44 push ecx
45 mov ecx,[esp+010h]; b
46 mov edx,[esp+0ch]; a
47 mov eax,[esp+08h]; a
48 call __divu64
49 pop ecx
50 ret 010h
51__aulldiv@16 endp
52 extrn __modi64:proc
53
54; 206 LONGLONG WINAPI _allrem( LONGLONG a, LONGLONG b )
55 align 4h
56
57 public __allrem@16
58__allrem@16 proc
59
60; 208 return a % b;
61 mov ecx,[esp+010h]; b
62 push ecx
63 mov eax,[esp+08h]; a
64 mov edx,[esp+0ch]; a
65 mov ecx,[esp+010h]; b
66 call __modi64
67 pop ecx
68 ret 010h
69__allrem@16 endp
70 extrn __multi64:proc
71
72; 197 LONGLONG WINAPI _allmul( LONGLONG a, LONGLONG b )
73 align 4h
74
75 public __allmul@16
76__allmul@16 proc
77
78; 199 return a * b;
79 mov ecx,[esp+010h]; b
80 push ecx
81 mov ecx,[esp+010h]; b
82 mov edx,[esp+0ch]; a
83 mov eax,[esp+08h]; a
84 call __multi64
85 pop ecx
86 ret 010h
87__allmul@16 endp
88 extrn __divi64:proc
89
90; 188 LONGLONG WINAPI _alldiv( LONGLONG a, LONGLONG b )
91 align 4h
92
93 public __alldiv@16
94__alldiv@16 proc
95
96; 190 return a / b;
97 mov ecx,[esp+010h]; b
98 push ecx
99 sub esp,0ch
100 mov ecx,[esp+01ch]; b
101 mov edx,[esp+018h]; a
102 mov eax,[esp+014h]; a
103 call __divi64
104 add esp,010h
105 ret 010h
106__alldiv@16 endp
107
108; 158 LONGLONG WINAPI RtlExtendedIntegerMultiply( LONGLONG a, INT b )
109 align 4h
110
111 public _RtlExtendedIntegerMultiply@12
112_RtlExtendedIntegerMultiply@12 proc
113
114; 160 return a * b;
115 mov ecx,[esp+08h]; a
116 push ecx
117 mov eax,[esp+010h]; b
118 mov ecx,[esp+08h]; a
119 mov edx,eax
120 sar edx,01fh
121 call __multi64
122 pop ecx
123 ret 0ch
124_RtlExtendedIntegerMultiply@12 endp
125
126; 147 LONGLONG WINAPI RtlExtendedLargeIntegerDivide( LONGLONG a, INT b, INT *rem )
127 align 4h
128
129 public _RtlExtendedLargeIntegerDivide@16
130_RtlExtendedLargeIntegerDivide@16 proc
131 sub esp,08h
132 push ebx
133 push edi
134
135; 149 LONGLONG ret = a / b;
136 mov ebx,[esp+01ch]; b
137 mov ecx,ebx
138 sar ecx,01fh
139 push ecx
140 mov ecx,ebx
141 sub esp,0ch
142 mov edi,[esp+024h]; a
143 mov edx,[esp+028h]; a
144 mov eax,edi
145 call __divi64
146 add esp,010h
147
148; 150 if (rem) *rem = a - b * ret;
149 mov ecx,[esp+020h]; rem
150
151; 149 LONGLONG ret = a / b;
152 mov [esp+08h],eax; ret
153 mov [esp+0ch],edx; ret
154
155; 150 if (rem) *rem = a - b * ret;
156 test ecx,ecx
157 je @BLBL15
158 imul ebx,eax
159 sub edi,ebx
160 mov [ecx],edi
161@BLBL15:
162
163; 151 return ret;
164 pop edi
165 pop ebx
166 add esp,08h
167 ret 010h
168_RtlExtendedLargeIntegerDivide@16 endp
169
170; 127 UINT WINAPI RtlEnlargedUnsignedDivide( ULONGLONG a, UINT b, UINT *remptr )
171 align 4h
172
173 public _RtlEnlargedUnsignedDivide@16
174_RtlEnlargedUnsignedDivide@16 proc
175 push ebp
176 push ebx
177
178; 137 UINT ret = a / b;
179 xor ebx,ebx
180
181; 127 UINT WINAPI RtlEnlargedUnsignedDivide( ULONGLONG a, UINT b, UINT *remptr )
182 push edi
183 push esi
184 push ebp
185
186; 137 UINT ret = a / b;
187 mov esi,[esp+020h]; b
188 push ebx
189 mov ebp,[esp+020h]; a
190 mov edi,[esp+01ch]; a
191 mov ecx,esi
192 mov edx,ebp
193 mov eax,edi
194 call __divu64
195 xchg edi,eax
196 mov ecx,esi
197 mov edx,ebp
198 pop esi
199 mov [esp],edi; ret
200
201; 138 if (remptr) *remptr = a % b;
202 mov edi,[esp+024h]; remptr
203 test edi,edi
204 je @BLBL13
205 push ebx
206 call __modu64
207 mov [edi],eax
208 pop ecx
209@BLBL13:
210
211; 139 return ret;
212 mov eax,[esp]; ret
213 pop ecx
214 pop esi
215 pop edi
216 pop ebx
217 pop ebp
218 ret 010h
219_RtlEnlargedUnsignedDivide@16 endp
220
221; 118 ULONGLONG WINAPI RtlEnlargedUnsignedMultiply( UINT a, UINT b )
222 align 4h
223
224 public _RtlEnlargedUnsignedMultiply@8
225_RtlEnlargedUnsignedMultiply@8 proc
226
227; 120 return (ULONGLONG)a * b;
228 mov ecx,[esp+04h]; a
229 xor eax,eax
230 push eax
231 xor edx,edx
232 mov eax,[esp+0ch]; b
233 call __multi64
234 pop ecx
235 ret 08h
236_RtlEnlargedUnsignedMultiply@8 endp
237
238; 109 LONGLONG WINAPI RtlEnlargedIntegerMultiply( INT a, INT b )
239 align 4h
240
241 public _RtlEnlargedIntegerMultiply@8
242_RtlEnlargedIntegerMultiply@8 proc
243
244; 111 return (LONGLONG)a * b;
245 mov ecx,[esp+04h]; a
246 mov eax,ecx
247 sar eax,01fh
248 push eax
249 mov eax,[esp+0ch]; b
250 mov edx,eax
251 sar edx,01fh
252 call __multi64
253 pop ecx
254 ret 08h
255_RtlEnlargedIntegerMultiply@8 endp
256
257; 100 ULONGLONG WINAPI RtlConvertUlongToLargeInteger( ULONG a )
258 align 4h
259
260 public _RtlConvertUlongToLargeInteger@4
261_RtlConvertUlongToLargeInteger@4 proc
262
263; 102 return a;
264 mov eax,[esp+04h]; a
265 xor edx,edx
266 ret 04h
267_RtlConvertUlongToLargeInteger@4 endp
268
269; 91 LONGLONG WINAPI RtlConvertLongToLargeInteger( LONG a )
270 align 4h
271
272 public _RtlConvertLongToLargeInteger@4
273_RtlConvertLongToLargeInteger@4 proc
274
275; 93 return a;
276 mov eax,[esp+04h]; a
277 mov edx,eax
278 sar edx,01fh
279 ret 04h
280_RtlConvertLongToLargeInteger@4 endp
281
282; 80 ULONGLONG WINAPI RtlLargeIntegerDivide( ULONGLONG a, ULONGLONG b, ULONGLONG *rem )
283 align 4h
284
285 public _RtlLargeIntegerDivide@20
286_RtlLargeIntegerDivide@20 proc
287 push ebp
288 push ebx
289 push edi
290 push esi
291 sub esp,08h
292
293; 82 ULONGLONG ret = a / b;
294 mov ebp,[esp+028h]; b
295 push ebp
296 mov ebx,[esp+028h]; b
297 mov esi,[esp+024h]; a
298 mov edi,[esp+020h]; a
299 mov ecx,ebx
300 mov edx,esi
301 mov eax,edi
302 call __divu64
303 mov ecx,ebx
304 pop ebx
305
306; 83 if (rem) *rem = a - ret * b;
307 mov ebx,[esp+02ch]; rem
308
309; 82 ULONGLONG ret = a / b;
310 mov [esp],eax; ret
311 mov [esp+04h],edx; ret
312
313; 83 if (rem) *rem = a - ret * b;
314 test ebx,ebx
315 je @BLBL7
316 push ebp
317 call __multi64
318 mov ecx,edi
319 pop edi
320 sub ecx,eax
321 sbb esi,edx
322 mov [ebx],ecx
323 mov [ebx+04h],esi
324@BLBL7:
325
326; 84 return ret;
327 mov eax,[esp]; ret
328 mov edx,[esp+04h]; ret
329 add esp,08h
330 pop esi
331 pop edi
332 pop ebx
333 pop ebp
334 ret 014h
335_RtlLargeIntegerDivide@20 endp
336
337; 68 LONGLONG WINAPI RtlLargeIntegerArithmeticShift( LONGLONG a, INT count )
338 align 4h
339
340 public _RtlLargeIntegerArithmeticShift@12
341_RtlLargeIntegerArithmeticShift@12 proc
342
343; 71 return a >> count;
344 mov ecx,[esp+0ch]; count
345 mov edx,[esp+08h]; a
346 and ecx,03fh
347 mov eax,[esp+04h]; a
348 cmp ecx,01fh
349 jg @BLBL23
350 shrd eax,edx,cl
351 sar edx,cl
352 jmp @BLBL24
353@BLBL23:
354 mov eax,edx
355 sub cl,020h
356 sar edx,01fh
357 sar eax,cl
358@BLBL24:
359 ret 0ch
360_RtlLargeIntegerArithmeticShift@12 endp
361
362; 59 LONGLONG WINAPI RtlLargeIntegerShiftRight( LONGLONG a, INT count )
363 align 4h
364
365 public _RtlLargeIntegerShiftRight@12
366_RtlLargeIntegerShiftRight@12 proc
367
368; 61 return (ULONGLONG)a >> count;
369 mov ecx,[esp+0ch]; count
370 mov eax,[esp+04h]; a
371 and ecx,03fh
372 mov edx,[esp+08h]; a
373 cmp ecx,01fh
374 jg @BLBL25
375 shrd eax,edx,cl
376 shr edx,cl
377 jmp @BLBL26
378@BLBL25:
379 mov eax,edx
380 sub cl,020h
381 shr eax,cl
382 xor edx,edx
383@BLBL26:
384 ret 0ch
385_RtlLargeIntegerShiftRight@12 endp
386
387; 50 LONGLONG WINAPI RtlLargeIntegerShiftLeft( LONGLONG a, INT count )
388 align 4h
389
390 public _RtlLargeIntegerShiftLeft@12
391_RtlLargeIntegerShiftLeft@12 proc
392
393; 52 return a << count;
394 mov ecx,[esp+0ch]; count
395 mov eax,[esp+04h]; a
396 and ecx,03fh
397 mov edx,[esp+08h]; a
398 cmp ecx,01fh
399 jg @BLBL27
400 shld edx,eax,cl
401 shl eax,cl
402 jmp @BLBL28
403@BLBL27:
404 mov edx,eax
405 sub cl,020h
406 shl edx,cl
407 xor eax,eax
408@BLBL28:
409 ret 0ch
410_RtlLargeIntegerShiftLeft@12 endp
411
412; 41 LONGLONG WINAPI RtlLargeIntegerNegate( LONGLONG a )
413 align 4h
414
415 public _RtlLargeIntegerNegate@8
416_RtlLargeIntegerNegate@8 proc
417
418; 43 return -a;
419 mov eax,[esp+04h]; a
420 mov edx,[esp+08h]; a
421 not eax
422 not edx
423 add eax,01h
424 adc edx,0h
425 ret 08h
426_RtlLargeIntegerNegate@8 endp
427
428; 32 LONGLONG WINAPI RtlLargeIntegerSubtract( LONGLONG a, LONGLONG b )
429 align 4h
430
431 public _RtlLargeIntegerSubtract@16
432_RtlLargeIntegerSubtract@16 proc
433
434; 34 return a - b;
435 mov eax,[esp+04h]; a
436 mov edx,[esp+08h]; a
437 sub eax,[esp+0ch]; b
438 sbb edx,[esp+010h]; b
439 ret 010h
440_RtlLargeIntegerSubtract@16 endp
441
442; 23 LONGLONG WINAPI RtlLargeIntegerAdd( LONGLONG a, LONGLONG b )
443 align 4h
444
445 public _RtlLargeIntegerAdd@16
446_RtlLargeIntegerAdd@16 proc
447
448; 25 return a + b;
449 mov eax,[esp+04h]; a
450 mov edx,[esp+08h]; a
451 add eax,[esp+0ch]; b
452 adc edx,[esp+010h]; b
453 ret 010h
454_RtlLargeIntegerAdd@16 endp
455CODE32 ends
456end
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