asm-watcom-x86-32.h@ 104212

Last change on this file since 104212 was 103005, checked in by vboxsync, 10 months ago
iprt/asm.h,: Split out the ASMMem and related stuff into a separate header, asm-mem.h, so that we can get the RT_ASM_PAGE_SIZE stuff out of the way.
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1	/** @file
2	* IPRT - Assembly Functions, x86 32-bit Watcom C/C++ pragma aux.
3	*/
4
5	/*
6	* Copyright (C) 2006-2024 Oracle and/or its affiliates.
7	*
8	* This file is part of VirtualBox base platform packages, as
9	* available from https://www.virtualbox.org.
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU General Public License
13	* as published by the Free Software Foundation, in version 3 of the
14	* License.
15	*
16	* This program is distributed in the hope that it will be useful, but
17	* WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	* General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with this program; if not, see <https://www.gnu.org/licenses>.
23	*
24	* The contents of this file may alternatively be used under the terms
25	* of the Common Development and Distribution License Version 1.0
26	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
27	* in the VirtualBox distribution, in which case the provisions of the
28	* CDDL are applicable instead of those of the GPL.
29	*
30	* You may elect to license modified versions of this file under the
31	* terms and conditions of either the GPL or the CDDL or both.
32	*
33	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
34	*/
35
36	#ifndef IPRT_INCLUDED_asm_watcom_x86_32_h
37	#define IPRT_INCLUDED_asm_watcom_x86_32_h
38	/* no pragma once */
39
40	#ifndef IPRT_INCLUDED_asm_h
41	# error "Don't include this header directly."
42	#endif
43
44	#ifndef __FLAT__
45	# error "Only works with flat pointers! (-mf)"
46	#endif
47
48	/*
49	* Note! The #undef that preceds the #pragma aux statements is for undoing
50	* the mangling, because the symbol in #pragma aux [symbol] statements
51	* doesn't get subjected to preprocessing. This is also why we include
52	* the watcom header at both the top and the bottom of asm.h file.
53	*/
54
55	#undef ASMCompilerBarrier
56	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
57	# if 0 /* overkill version. */
58	# pragma aux ASMCompilerBarrier = \
59	"nop" \
60	parm [] \
61	modify exact [eax ebx ecx edx es ds fs gs];
62	# else
63	# pragma aux ASMCompilerBarrier = \
64	"" \
65	parm [] \
66	modify exact [];
67	# endif
68	#endif
69
70	#undef ASMNopPause
71	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
72	#pragma aux ASMNopPause = \
73	".686p" \
74	".xmm2" \
75	"pause" \
76	parm [] nomemory \
77	modify exact [] nomemory;
78	#endif
79
80	#undef ASMAtomicXchgU8
81	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
82	#pragma aux ASMAtomicXchgU8 = \
83	"xchg [ecx], al" \
84	parm [ecx] [al] \
85	value [al] \
86	modify exact [al];
87	#endif
88
89	#undef ASMAtomicXchgU16
90	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
91	#pragma aux ASMAtomicXchgU16 = \
92	"xchg [ecx], ax" \
93	parm [ecx] [ax] \
94	value [ax] \
95	modify exact [ax];
96	#endif
97
98	#undef ASMAtomicXchgU32
99	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
100	#pragma aux ASMAtomicXchgU32 = \
101	"xchg [ecx], eax" \
102	parm [ecx] [eax] \
103	value [eax] \
104	modify exact [eax];
105	#endif
106
107	#undef ASMAtomicXchgU64
108	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
109	#pragma aux ASMAtomicXchgU64 = \
110	".586" \
111	"try_again:" \
112	"lock cmpxchg8b [esi]" \
113	"jnz try_again" \
114	parm [esi] [ebx ecx] \
115	value [eax edx] \
116	modify exact [edx ecx ebx eax];
117	#endif
118
119	#undef ASMAtomicCmpXchgU8
120	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
121	#pragma aux ASMAtomicCmpXchgU8 = \
122	".486" \
123	"lock cmpxchg [edx], cl" \
124	"setz al" \
125	parm [edx] [cl] [al] \
126	value [al] \
127	modify exact [al];
128	#endif
129
130	#undef ASMAtomicCmpXchgU16
131	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
132	#pragma aux ASMAtomicCmpXchgU16 = \
133	".486" \
134	"lock cmpxchg [edx], cx" \
135	"setz al" \
136	parm [edx] [cx] [ax] \
137	value [al] \
138	modify exact [ax];
139	#endif
140
141	#undef ASMAtomicCmpXchgU32
142	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
143	#pragma aux ASMAtomicCmpXchgU32 = \
144	".486" \
145	"lock cmpxchg [edx], ecx" \
146	"setz al" \
147	parm [edx] [ecx] [eax] \
148	value [al] \
149	modify exact [eax];
150	#endif
151
152	#undef ASMAtomicCmpXchgU64
153	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
154	#pragma aux ASMAtomicCmpXchgU64 = \
155	".586" \
156	"lock cmpxchg8b [edi]" \
157	"setz al" \
158	parm [edi] [ebx ecx] [eax edx] \
159	value [al] \
160	modify exact [eax edx];
161	#endif
162
163	#undef ASMAtomicCmpXchgExU32
164	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
165	#pragma aux ASMAtomicCmpXchgExU32 = \
166	".586" \
167	"lock cmpxchg [edx], ecx" \
168	"mov [edi], eax" \
169	"setz al" \
170	parm [edx] [ecx] [eax] [edi] \
171	value [al] \
172	modify exact [eax];
173	#endif
174
175	#undef ASMAtomicCmpXchgExU64
176	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
177	#pragma aux ASMAtomicCmpXchgExU64 = \
178	".586" \
179	"lock cmpxchg8b [edi]" \
180	"mov [esi], eax" \
181	"mov [esi + 4], edx" \
182	"setz al" \
183	parm [edi] [ebx ecx] [eax edx] [esi] \
184	value [al] \
185	modify exact [eax edx];
186	#endif
187
188	#undef ASMSerializeInstructionCpuId
189	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
190	#pragma aux ASMSerializeInstructionCpuId = \
191	".586" \
192	"xor eax, eax" \
193	"cpuid" \
194	parm [] \
195	modify exact [eax ebx ecx edx];
196	#endif
197
198	#undef ASMSerializeInstructionIRet
199	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
200	#pragma aux ASMSerializeInstructionIRet = \
201	"pushf" \
202	"push cs" \
203	"call foo" /* 'push offset done' doesn't work */ \
204	"jmp done" \
205	"foo:" \
206	"iret" \
207	"done:" \
208	parm [] \
209	modify exact [];
210	#endif
211
212	#undef ASMSerializeInstructionRdTscp
213	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
214	#pragma aux ASMSerializeInstructionRdTscp = \
215	0x0f 0x01 0xf9 \
216	parm [] \
217	modify exact [eax edx ecx];
218	#endif
219
220	#undef ASMAtomicReadU64
221	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
222	#pragma aux ASMAtomicReadU64 = \
223	".586" \
224	"xor eax, eax" \
225	"mov edx, eax" \
226	"mov ebx, eax" \
227	"mov ecx, eax" \
228	"lock cmpxchg8b [edi]" \
229	parm [edi] \
230	value [eax edx] \
231	modify exact [eax ebx ecx edx];
232	#endif
233
234	#undef ASMAtomicUoReadU64
235	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
236	#pragma aux ASMAtomicUoReadU64 = \
237	".586" \
238	"xor eax, eax" \
239	"mov edx, eax" \
240	"mov ebx, eax" \
241	"mov ecx, eax" \
242	"lock cmpxchg8b [edi]" \
243	parm [edi] \
244	value [eax edx] \
245	modify exact [eax ebx ecx edx];
246	#endif
247
248	#undef ASMAtomicAddU16
249	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
250	#pragma aux ASMAtomicAddU16 = \
251	".486" \
252	"lock xadd [ecx], ax" \
253	parm [ecx] [ax] \
254	value [ax] \
255	modify exact [ax];
256	#endif
257
258	#undef ASMAtomicAddU32
259	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
260	#pragma aux ASMAtomicAddU32 = \
261	".486" \
262	"lock xadd [ecx], eax" \
263	parm [ecx] [eax] \
264	value [eax] \
265	modify exact [eax];
266	#endif
267
268	#undef ASMAtomicIncU16
269	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
270	#pragma aux ASMAtomicIncU16 = \
271	".486" \
272	"mov ax, 1" \
273	"lock xadd [ecx], ax" \
274	"inc ax" \
275	parm [ecx] \
276	value [ax] \
277	modify exact [ax];
278	#endif
279
280	#undef ASMAtomicIncU32
281	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
282	#pragma aux ASMAtomicIncU32 = \
283	".486" \
284	"mov eax, 1" \
285	"lock xadd [ecx], eax" \
286	"inc eax" \
287	parm [ecx] \
288	value [eax] \
289	modify exact [eax];
290	#endif
291
292	/* ASMAtomicIncU64: Should be done by C inline or in external file. */
293
294	#undef ASMAtomicDecU16
295	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
296	#pragma aux ASMAtomicDecU16 = \
297	".486" \
298	"mov ax, 0ffffh" \
299	"lock xadd [ecx], ax" \
300	"dec ax" \
301	parm [ecx] \
302	value [ax] \
303	modify exact [ax];
304	#endif
305
306	#undef ASMAtomicDecU32
307	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
308	#pragma aux ASMAtomicDecU32 = \
309	".486" \
310	"mov eax, 0ffffffffh" \
311	"lock xadd [ecx], eax" \
312	"dec eax" \
313	parm [ecx] \
314	value [eax] \
315	modify exact [eax];
316	#endif
317
318	/* ASMAtomicDecU64: Should be done by C inline or in external file. */
319
320	#undef ASMAtomicOrU32
321	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
322	#pragma aux ASMAtomicOrU32 = \
323	"lock or [ecx], eax" \
324	parm [ecx] [eax] \
325	modify exact [];
326	#endif
327
328	/* ASMAtomicOrU64: Should be done by C inline or in external file. */
329
330	#undef ASMAtomicAndU32
331	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
332	#pragma aux ASMAtomicAndU32 = \
333	"lock and [ecx], eax" \
334	parm [ecx] [eax] \
335	modify exact [];
336	#endif
337
338	/* ASMAtomicAndU64: Should be done by C inline or in external file. */
339
340	#undef ASMAtomicUoOrU32
341	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
342	#pragma aux ASMAtomicUoOrU32 = \
343	"or [ecx], eax" \
344	parm [ecx] [eax] \
345	modify exact [];
346	#endif
347
348	/* ASMAtomicUoOrU64: Should be done by C inline or in external file. */
349
350	#undef ASMAtomicUoAndU32
351	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
352	#pragma aux ASMAtomicUoAndU32 = \
353	"and [ecx], eax" \
354	parm [ecx] [eax] \
355	modify exact [];
356	#endif
357
358	/* ASMAtomicUoAndU64: Should be done by C inline or in external file. */
359
360	#undef ASMAtomicUoIncU32
361	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
362	#pragma aux ASMAtomicUoIncU32 = \
363	".486" \
364	"xadd [ecx], eax" \
365	"inc eax" \
366	parm [ecx] \
367	value [eax] \
368	modify exact [eax];
369	#endif
370
371	#undef ASMAtomicUoDecU32
372	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
373	#pragma aux ASMAtomicUoDecU32 = \
374	".486" \
375	"mov eax, 0ffffffffh" \
376	"xadd [ecx], eax" \
377	"dec eax" \
378	parm [ecx] \
379	value [eax] \
380	modify exact [eax];
381	#endif
382
383	#undef ASMBitSet
384	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
385	#pragma aux ASMBitSet = \
386	"bts [ecx], eax" \
387	parm [ecx] [eax] \
388	modify exact [];
389	#endif
390
391	#undef ASMAtomicBitSet
392	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
393	#pragma aux ASMAtomicBitSet = \
394	"lock bts [ecx], eax" \
395	parm [ecx] [eax] \
396	modify exact [];
397	#endif
398
399	#undef ASMBitClear
400	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
401	#pragma aux ASMBitClear = \
402	"btr [ecx], eax" \
403	parm [ecx] [eax] \
404	modify exact [];
405	#endif
406
407	#undef ASMAtomicBitClear
408	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
409	#pragma aux ASMAtomicBitClear = \
410	"lock btr [ecx], eax" \
411	parm [ecx] [eax] \
412	modify exact [];
413	#endif
414
415	#undef ASMBitToggle
416	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
417	#pragma aux ASMBitToggle = \
418	"btc [ecx], eax" \
419	parm [ecx] [eax] \
420	modify exact [];
421	#endif
422
423	#undef ASMAtomicBitToggle
424	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
425	#pragma aux ASMAtomicBitToggle = \
426	"lock btc [ecx], eax" \
427	parm [ecx] [eax] \
428	modify exact [];
429	#endif
430
431
432	#undef ASMBitTestAndSet
433	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
434	#pragma aux ASMBitTestAndSet = \
435	"bts [ecx], eax" \
436	"setc al" \
437	parm [ecx] [eax] \
438	value [al] \
439	modify exact [eax];
440	#endif
441
442	#undef ASMAtomicBitTestAndSet
443	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
444	#pragma aux ASMAtomicBitTestAndSet = \
445	"lock bts [ecx], eax" \
446	"setc al" \
447	parm [ecx] [eax] \
448	value [al] \
449	modify exact [eax];
450	#endif
451
452	#undef ASMBitTestAndClear
453	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
454	#pragma aux ASMBitTestAndClear = \
455	"btr [ecx], eax" \
456	"setc al" \
457	parm [ecx] [eax] \
458	value [al] \
459	modify exact [eax];
460	#endif
461
462	#undef ASMAtomicBitTestAndClear
463	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
464	#pragma aux ASMAtomicBitTestAndClear = \
465	"lock btr [ecx], eax" \
466	"setc al" \
467	parm [ecx] [eax] \
468	value [al] \
469	modify exact [eax];
470	#endif
471
472	#undef ASMBitTestAndToggle
473	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
474	#pragma aux ASMBitTestAndToggle = \
475	"btc [ecx], eax" \
476	"setc al" \
477	parm [ecx] [eax] \
478	value [al] \
479	modify exact [eax];
480	#endif
481
482	#undef ASMAtomicBitTestAndToggle
483	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
484	#pragma aux ASMAtomicBitTestAndToggle = \
485	"lock btc [ecx], eax" \
486	"setc al" \
487	parm [ecx] [eax] \
488	value [al] \
489	modify exact [eax];
490	#endif
491
492	#undef ASMBitTest
493	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
494	#pragma aux ASMBitTest = \
495	"bt [ecx], eax" \
496	"setc al" \
497	parm [ecx] [eax] nomemory \
498	value [al] \
499	modify exact [eax] nomemory;
500	#endif
501
502	#if 0
503	/** @todo this is way to much inline assembly, better off in an external function. */
504	#undef ASMBitFirstClear
505	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
506	#pragma aux ASMBitFirstClear = \
507	"mov edx, edi" /* save start of bitmap for later */ \
508	"add ecx, 31" \
509	"shr ecx, 5" /* cDWord = RT_ALIGN_32(cBits, 32) / 32; */ \
510	"mov eax, 0ffffffffh" \
511	"repe scasd" \
512	"je done" \
513	"lea edi, [edi - 4]" /* rewind edi */ \
514	"xor eax, [edi]" /* load inverted bits */ \
515	"sub edi, edx" /* calc byte offset */ \
516	"shl edi, 3" /* convert byte to bit offset */ \
517	"mov edx, eax" \
518	"bsf eax, edx" \
519	"add eax, edi" \
520	"done:" \
521	parm [edi] [ecx] \
522	value [eax] \
523	modify exact [eax ecx edx edi];
524	#endif
525
526	/* ASMBitNextClear: Too much work, do when needed. */
527
528	/** @todo this is way to much inline assembly, better off in an external function. */
529	#undef ASMBitFirstSet
530	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
531	#pragma aux ASMBitFirstSet = \
532	"mov edx, edi" /* save start of bitmap for later */ \
533	"add ecx, 31" \
534	"shr ecx, 5" /* cDWord = RT_ALIGN_32(cBits, 32) / 32; */ \
535	"mov eax, 0ffffffffh" \
536	"repe scasd" \
537	"je done" \
538	"lea edi, [edi - 4]" /* rewind edi */ \
539	"mov eax, [edi]" /* reload previous dword */ \
540	"sub edi, edx" /* calc byte offset */ \
541	"shl edi, 3" /* convert byte to bit offset */ \
542	"mov edx, eax" \
543	"bsf eax, edx" \
544	"add eax, edi" \
545	"done:" \
546	parm [edi] [ecx] \
547	value [eax] \
548	modify exact [eax ecx edx edi];
549	#endif
550
551	/* ASMBitNextSet: Too much work, do when needed. */
552	#else
553	/* ASMBitFirstClear: External file. */
554	/* ASMBitNextClear: External file. */
555	/* ASMBitFirstSet: External file. */
556	/* ASMBitNextSet: External file. */
557	#endif
558
559	#undef ASMBitFirstSetU32
560	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
561	#pragma aux ASMBitFirstSetU32 = \
562	"bsf eax, eax" \
563	"jz not_found" \
564	"inc eax" \
565	"jmp done" \
566	"not_found:" \
567	"xor eax, eax" \
568	"done:" \
569	parm [eax] nomemory \
570	value [eax] \
571	modify exact [eax] nomemory;
572	#endif
573
574	#undef ASMBitFirstSetU64
575	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
576	#pragma aux ASMBitFirstSetU64 = \
577	"bsf eax, eax" \
578	"jz not_found_low" \
579	"inc eax" \
580	"jmp done" \
581	\
582	"not_found_low:" \
583	"bsf eax, edx" \
584	"jz not_found_high" \
585	"add eax, 33" \
586	"jmp done" \
587	\
588	"not_found_high:" \
589	"xor eax, eax" \
590	"done:" \
591	parm [eax edx] nomemory \
592	value [eax] \
593	modify exact [eax] nomemory;
594	#endif
595
596	#undef ASMBitFirstSetU16
597	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
598	#pragma aux ASMBitFirstSetU16 = \
599	"movzx eax, ax" \
600	"bsf eax, eax" \
601	"jz not_found" \
602	"inc eax" \
603	"jmp done" \
604	"not_found:" \
605	"xor eax, eax" \
606	"done:" \
607	parm [ax] nomemory \
608	value [eax] \
609	modify exact [eax] nomemory;
610	#endif
611
612	#undef ASMBitLastSetU32
613	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
614	#pragma aux ASMBitLastSetU32 = \
615	"bsr eax, eax" \
616	"jz not_found" \
617	"inc eax" \
618	"jmp done" \
619	"not_found:" \
620	"xor eax, eax" \
621	"done:" \
622	parm [eax] nomemory \
623	value [eax] \
624	modify exact [eax] nomemory;
625	#endif
626
627	#undef ASMBitLastSetU64
628	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
629	#pragma aux ASMBitLastSetU64 = \
630	"xchg eax, edx" \
631	"bsr eax, eax" \
632	"jz not_found_high" \
633	"add eax, 33" \
634	"jmp done" \
635	\
636	"not_found_high:" \
637	"bsr eax, edx" \
638	"jz not_found" \
639	"inc eax" \
640	"jmp done" \
641	\
642	"not_found:" \
643	"xor eax, eax" \
644	"done:" \
645	parm [eax edx] nomemory \
646	value [eax] \
647	modify exact [eax edx] nomemory;
648	#endif
649
650	#undef ASMBitLastSetU16
651	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
652	#pragma aux ASMBitLastSetU16 = \
653	"movzx eax, ax" \
654	"bsr eax, eax" \
655	"jz not_found" \
656	"inc eax" \
657	"jmp done" \
658	"not_found:" \
659	"xor eax, eax" \
660	"done:" \
661	parm [ax] nomemory \
662	value [eax] \
663	modify exact [eax] nomemory;
664	#endif
665
666	#undef ASMByteSwapU16
667	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
668	#pragma aux ASMByteSwapU16 = \
669	"ror ax, 8" \
670	parm [ax] nomemory \
671	value [ax] \
672	modify exact [ax] nomemory;
673	#endif
674
675	#undef ASMByteSwapU32
676	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
677	#pragma aux ASMByteSwapU32 = \
678	"bswap eax" \
679	parm [eax] nomemory \
680	value [eax] \
681	modify exact [eax] nomemory;
682	#endif
683
684	#undef ASMRotateLeftU32
685	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
686	#pragma aux ASMRotateLeftU32 = \
687	"rol eax, cl" \
688	parm [eax] [ecx] nomemory \
689	value [eax] \
690	modify exact [eax] nomemory;
691	#endif
692
693	#undef ASMRotateRightU32
694	#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
695	#pragma aux ASMRotateRightU32 = \
696	"ror eax, cl" \
697	parm [eax] [ecx] nomemory \
698	value [eax] \
699	modify exact [eax] nomemory;
700	#endif
701
702	#endif /* !IPRT_INCLUDED_asm_watcom_x86_32_h */
703

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source: vbox/trunk/include/iprt/asm-watcom-x86-32.h@ 104212

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