tstInlineAsm.cpp@ 11019

Last change on this file since 11019 was 10995, checked in by vboxsync, 16 years ago
iprt: Added ASMByteSwapU16/64 and unit test for them + U32.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 44.8 KB

Line
1	/* $Id: tstInlineAsm.cpp 10995 2008-07-30 15:49:16Z vboxsync $ */
2	/** @file
3	* IPRT Testcase - inline assembly.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*
26	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27	* Clara, CA 95054 USA or visit http://www.sun.com if you need
28	* additional information or have any questions.
29	*/
30
31	/*******************************************************************************
32	* Header Files *
33	*******************************************************************************/
34	#include <iprt/asm.h>
35	#include <iprt/stream.h>
36	#include <iprt/string.h>
37	#include <iprt/runtime.h>
38	#include <iprt/param.h>
39
40
41	/*******************************************************************************
42	* Global Variables *
43	*******************************************************************************/
44	/** Global error count. */
45	static unsigned g_cErrors;
46
47
48	/*******************************************************************************
49	* Defined Constants And Macros *
50	*******************************************************************************/
51	#define CHECKVAL(val, expect, fmt) \
52	do \
53	{ \
54	if ((val) != (expect)) \
55	{ \
56	g_cErrors++; \
57	RTPrintf("%s, %d: " #val ": expected " fmt " got " fmt "\n", __FUNCTION__, __LINE__, (expect), (val)); \
58	} \
59	} while (0)
60
61	#define CHECKOP(op, expect, fmt, type) \
62	do \
63	{ \
64	type val = op; \
65	if (val != (type)(expect)) \
66	{ \
67	g_cErrors++; \
68	RTPrintf("%s, %d: " #op ": expected " fmt " got " fmt "\n", __FUNCTION__, __LINE__, (type)(expect), val); \
69	} \
70	} while (0)
71
72
73	#if !defined(PIC) \|\| !defined(RT_ARCH_X86)
74	const char *getCacheAss(unsigned u)
75	{
76	if (u == 0)
77	return "res0 ";
78	if (u == 1)
79	return "direct";
80	if (u >= 256)
81	return "???";
82
83	char *pszRet;
84	RTStrAPrintf(&pszRet, "%d way", u); /* intentional leak! */
85	return pszRet;
86	}
87
88
89	const char *getL2CacheAss(unsigned u)
90	{
91	switch (u)
92	{
93	case 0: return "off ";
94	case 1: return "direct";
95	case 2: return "2 way ";
96	case 3: return "res3 ";
97	case 4: return "4 way ";
98	case 5: return "res5 ";
99	case 6: return "8 way ";
100	case 7: return "res7 ";
101	case 8: return "16 way";
102	case 9: return "res9 ";
103	case 10: return "res10 ";
104	case 11: return "res11 ";
105	case 12: return "res12 ";
106	case 13: return "res13 ";
107	case 14: return "res14 ";
108	case 15: return "fully ";
109	default:
110	return "????";
111	}
112	}
113
114
115	/**
116	* Test and dump all possible info from the CPUID instruction.
117	*
118	* @remark Bits shared with the libc cpuid.c program. This all written by me, so no worries.
119	* @todo transform the dumping into a generic runtime function. We'll need it for logging!
120	*/
121	void tstASMCpuId(void)
122	{
123	unsigned iBit;
124	struct
125	{
126	uint32_t uEBX, uEAX, uEDX, uECX;
127	} s;
128	if (!ASMHasCpuId())
129	{
130	RTPrintf("tstInlineAsm: warning! CPU doesn't support CPUID\n");
131	return;
132	}
133
134	/*
135	* Try the 0 function and use that for checking the ASMCpuId_* variants.
136	*/
137	ASMCpuId(0, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
138
139	uint32_t u32 = ASMCpuId_ECX(0);
140	CHECKVAL(u32, s.uECX, "%x");
141
142	u32 = ASMCpuId_EDX(0);
143	CHECKVAL(u32, s.uEDX, "%x");
144
145	uint32_t uECX2 = s.uECX - 1;
146	uint32_t uEDX2 = s.uEDX - 1;
147	ASMCpuId_ECX_EDX(0, &uECX2, &uEDX2);
148
149	CHECKVAL(uECX2, s.uECX, "%x");
150	CHECKVAL(uEDX2, s.uEDX, "%x");
151
152	/*
153	* Done testing, dump the information.
154	*/
155	RTPrintf("tstInlineAsm: CPUID Dump\n");
156	ASMCpuId(0, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
157	const uint32_t cFunctions = s.uEAX;
158
159	/* raw dump */
160	RTPrintf("\n"
161	" RAW Standard CPUIDs\n"
162	"Function eax ebx ecx edx\n");
163	for (unsigned iStd = 0; iStd <= cFunctions + 3; iStd++)
164	{
165	ASMCpuId(iStd, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
166	RTPrintf("%08x %08x %08x %08x %08x%s\n",
167	iStd, s.uEAX, s.uEBX, s.uECX, s.uEDX, iStd <= cFunctions ? "" : "*");
168	}
169
170	/*
171	* Understandable output
172	*/
173	ASMCpuId(0, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
174	RTPrintf("Name: %.04s%.04s%.04s\n"
175	"Support: 0-%u\n",
176	&s.uEBX, &s.uEDX, &s.uECX, s.uEAX);
177	bool const fIntel = ASMIsIntelCpuEx(s.uEBX, s.uECX, s.uEDX);
178
179	/*
180	* Get Features.
181	*/
182	if (cFunctions >= 1)
183	{
184	ASMCpuId(1, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
185	RTPrintf("Family: %#x \tExtended: %#x \tEffective: %#x\n"
186	"Model: %#x \tExtended: %#x \tEffective: %#x\n"
187	"Stepping: %d\n"
188	"APIC ID: %#04x\n"
189	"Logical CPUs: %d\n"
190	"CLFLUSH Size: %d\n"
191	"Brand ID: %#04x\n",
192	(s.uEAX >> 8) & 0xf, (s.uEAX >> 20) & 0x7f, ASMGetCpuFamily(s.uEAX),
193	(s.uEAX >> 4) & 0xf, (s.uEAX >> 16) & 0x0f, ASMGetCpuModel(s.uEAX, fIntel),
194	ASMGetCpuStepping(s.uEAX),
195	(s.uEBX >> 24) & 0xff,
196	(s.uEBX >> 16) & 0xff,
197	(s.uEBX >> 8) & 0xff,
198	(s.uEBX >> 0) & 0xff);
199
200	RTPrintf("Features EDX: ");
201	if (s.uEDX & RT_BIT(0)) RTPrintf(" FPU");
202	if (s.uEDX & RT_BIT(1)) RTPrintf(" VME");
203	if (s.uEDX & RT_BIT(2)) RTPrintf(" DE");
204	if (s.uEDX & RT_BIT(3)) RTPrintf(" PSE");
205	if (s.uEDX & RT_BIT(4)) RTPrintf(" TSC");
206	if (s.uEDX & RT_BIT(5)) RTPrintf(" MSR");
207	if (s.uEDX & RT_BIT(6)) RTPrintf(" PAE");
208	if (s.uEDX & RT_BIT(7)) RTPrintf(" MCE");
209	if (s.uEDX & RT_BIT(8)) RTPrintf(" CX8");
210	if (s.uEDX & RT_BIT(9)) RTPrintf(" APIC");
211	if (s.uEDX & RT_BIT(10)) RTPrintf(" 10");
212	if (s.uEDX & RT_BIT(11)) RTPrintf(" SEP");
213	if (s.uEDX & RT_BIT(12)) RTPrintf(" MTRR");
214	if (s.uEDX & RT_BIT(13)) RTPrintf(" PGE");
215	if (s.uEDX & RT_BIT(14)) RTPrintf(" MCA");
216	if (s.uEDX & RT_BIT(15)) RTPrintf(" CMOV");
217	if (s.uEDX & RT_BIT(16)) RTPrintf(" PAT");
218	if (s.uEDX & RT_BIT(17)) RTPrintf(" PSE36");
219	if (s.uEDX & RT_BIT(18)) RTPrintf(" PSN");
220	if (s.uEDX & RT_BIT(19)) RTPrintf(" CLFSH");
221	if (s.uEDX & RT_BIT(20)) RTPrintf(" 20");
222	if (s.uEDX & RT_BIT(21)) RTPrintf(" DS");
223	if (s.uEDX & RT_BIT(22)) RTPrintf(" ACPI");
224	if (s.uEDX & RT_BIT(23)) RTPrintf(" MMX");
225	if (s.uEDX & RT_BIT(24)) RTPrintf(" FXSR");
226	if (s.uEDX & RT_BIT(25)) RTPrintf(" SSE");
227	if (s.uEDX & RT_BIT(26)) RTPrintf(" SSE2");
228	if (s.uEDX & RT_BIT(27)) RTPrintf(" SS");
229	if (s.uEDX & RT_BIT(28)) RTPrintf(" HTT");
230	if (s.uEDX & RT_BIT(29)) RTPrintf(" 29");
231	if (s.uEDX & RT_BIT(30)) RTPrintf(" 30");
232	if (s.uEDX & RT_BIT(31)) RTPrintf(" 31");
233	RTPrintf("\n");
234
235	/** @todo check intel docs. */
236	RTPrintf("Features ECX: ");
237	if (s.uECX & RT_BIT(0)) RTPrintf(" SSE3");
238	for (iBit = 1; iBit < 13; iBit++)
239	if (s.uECX & RT_BIT(iBit))
240	RTPrintf(" %d", iBit);
241	if (s.uECX & RT_BIT(13)) RTPrintf(" CX16");
242	for (iBit = 14; iBit < 32; iBit++)
243	if (s.uECX & RT_BIT(iBit))
244	RTPrintf(" %d", iBit);
245	RTPrintf("\n");
246	}
247
248	/*
249	* Extended.
250	* Implemented after AMD specs.
251	*/
252	/** @todo check out the intel specs. */
253	ASMCpuId(0x80000000, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
254	if (!s.uEAX && !s.uEBX && !s.uECX && !s.uEDX)
255	{
256	RTPrintf("No extended CPUID info? Check the manual on how to detect this...\n");
257	return;
258	}
259	const uint32_t cExtFunctions = s.uEAX \| 0x80000000;
260
261	/* raw dump */
262	RTPrintf("\n"
263	" RAW Extended CPUIDs\n"
264	"Function eax ebx ecx edx\n");
265	for (unsigned iExt = 0x80000000; iExt <= cExtFunctions + 3; iExt++)
266	{
267	ASMCpuId(iExt, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
268	RTPrintf("%08x %08x %08x %08x %08x%s\n",
269	iExt, s.uEAX, s.uEBX, s.uECX, s.uEDX, iExt <= cExtFunctions ? "" : "*");
270	}
271
272	/*
273	* Understandable output
274	*/
275	ASMCpuId(0x80000000, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
276	RTPrintf("Ext Name: %.4s%.4s%.4s\n"
277	"Ext Supports: 0x80000000-%#010x\n",
278	&s.uEBX, &s.uEDX, &s.uECX, s.uEAX);
279
280	if (cExtFunctions >= 0x80000001)
281	{
282	ASMCpuId(0x80000001, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
283	RTPrintf("Family: %#x \tExtended: %#x \tEffective: %#x\n"
284	"Model: %#x \tExtended: %#x \tEffective: %#x\n"
285	"Stepping: %d\n"
286	"Brand ID: %#05x\n",
287	(s.uEAX >> 8) & 0xf, (s.uEAX >> 20) & 0x7f, ASMGetCpuFamily(s.uEAX),
288	(s.uEAX >> 4) & 0xf, (s.uEAX >> 16) & 0x0f, ASMGetCpuModel(s.uEAX, fIntel),
289	ASMGetCpuStepping(s.uEAX),
290	s.uEBX & 0xfff);
291
292	RTPrintf("Features EDX: ");
293	if (s.uEDX & RT_BIT(0)) RTPrintf(" FPU");
294	if (s.uEDX & RT_BIT(1)) RTPrintf(" VME");
295	if (s.uEDX & RT_BIT(2)) RTPrintf(" DE");
296	if (s.uEDX & RT_BIT(3)) RTPrintf(" PSE");
297	if (s.uEDX & RT_BIT(4)) RTPrintf(" TSC");
298	if (s.uEDX & RT_BIT(5)) RTPrintf(" MSR");
299	if (s.uEDX & RT_BIT(6)) RTPrintf(" PAE");
300	if (s.uEDX & RT_BIT(7)) RTPrintf(" MCE");
301	if (s.uEDX & RT_BIT(8)) RTPrintf(" CMPXCHG8B");
302	if (s.uEDX & RT_BIT(9)) RTPrintf(" APIC");
303	if (s.uEDX & RT_BIT(10)) RTPrintf(" 10");
304	if (s.uEDX & RT_BIT(11)) RTPrintf(" SysCallSysRet");
305	if (s.uEDX & RT_BIT(12)) RTPrintf(" MTRR");
306	if (s.uEDX & RT_BIT(13)) RTPrintf(" PGE");
307	if (s.uEDX & RT_BIT(14)) RTPrintf(" MCA");
308	if (s.uEDX & RT_BIT(15)) RTPrintf(" CMOV");
309	if (s.uEDX & RT_BIT(16)) RTPrintf(" PAT");
310	if (s.uEDX & RT_BIT(17)) RTPrintf(" PSE36");
311	if (s.uEDX & RT_BIT(18)) RTPrintf(" 18");
312	if (s.uEDX & RT_BIT(19)) RTPrintf(" 19");
313	if (s.uEDX & RT_BIT(20)) RTPrintf(" NX");
314	if (s.uEDX & RT_BIT(21)) RTPrintf(" 21");
315	if (s.uEDX & RT_BIT(22)) RTPrintf(" MmxExt");
316	if (s.uEDX & RT_BIT(23)) RTPrintf(" MMX");
317	if (s.uEDX & RT_BIT(24)) RTPrintf(" FXSR");
318	if (s.uEDX & RT_BIT(25)) RTPrintf(" FastFXSR");
319	if (s.uEDX & RT_BIT(26)) RTPrintf(" 26");
320	if (s.uEDX & RT_BIT(27)) RTPrintf(" RDTSCP");
321	if (s.uEDX & RT_BIT(28)) RTPrintf(" 28");
322	if (s.uEDX & RT_BIT(29)) RTPrintf(" LongMode");
323	if (s.uEDX & RT_BIT(30)) RTPrintf(" 3DNowExt");
324	if (s.uEDX & RT_BIT(31)) RTPrintf(" 3DNow");
325	RTPrintf("\n");
326
327	RTPrintf("Features ECX: ");
328	if (s.uECX & RT_BIT(0)) RTPrintf(" LahfSahf");
329	if (s.uECX & RT_BIT(1)) RTPrintf(" CmpLegacy");
330	if (s.uECX & RT_BIT(2)) RTPrintf(" SVM");
331	if (s.uECX & RT_BIT(3)) RTPrintf(" 3");
332	if (s.uECX & RT_BIT(4)) RTPrintf(" AltMovCr8");
333	for (iBit = 5; iBit < 32; iBit++)
334	if (s.uECX & RT_BIT(iBit))
335	RTPrintf(" %d", iBit);
336	RTPrintf("\n");
337	}
338
339	char szString[443+1] = {0};
340	if (cExtFunctions >= 0x80000002)
341	ASMCpuId(0x80000002, &szString[0 + 0], &szString[0 + 4], &szString[0 + 8], &szString[0 + 12]);
342	if (cExtFunctions >= 0x80000003)
343	ASMCpuId(0x80000003, &szString[16 + 0], &szString[16 + 4], &szString[16 + 8], &szString[16 + 12]);
344	if (cExtFunctions >= 0x80000004)
345	ASMCpuId(0x80000004, &szString[32 + 0], &szString[32 + 4], &szString[32 + 8], &szString[32 + 12]);
346	if (cExtFunctions >= 0x80000002)
347	RTPrintf("Full Name: %s\n", szString);
348
349	if (cExtFunctions >= 0x80000005)
350	{
351	ASMCpuId(0x80000005, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
352	RTPrintf("TLB 2/4M Instr/Uni: %s %3d entries\n"
353	"TLB 2/4M Data: %s %3d entries\n",
354	getCacheAss((s.uEAX >> 8) & 0xff), (s.uEAX >> 0) & 0xff,
355	getCacheAss((s.uEAX >> 24) & 0xff), (s.uEAX >> 16) & 0xff);
356	RTPrintf("TLB 4K Instr/Uni: %s %3d entries\n"
357	"TLB 4K Data: %s %3d entries\n",
358	getCacheAss((s.uEBX >> 8) & 0xff), (s.uEBX >> 0) & 0xff,
359	getCacheAss((s.uEBX >> 24) & 0xff), (s.uEBX >> 16) & 0xff);
360	RTPrintf("L1 Instr Cache Line Size: %d bytes\n"
361	"L1 Instr Cache Lines Per Tag: %d\n"
362	"L1 Instr Cache Associativity: %s\n"
363	"L1 Instr Cache Size: %d KB\n",
364	(s.uEDX >> 0) & 0xff,
365	(s.uEDX >> 8) & 0xff,
366	getCacheAss((s.uEDX >> 16) & 0xff),
367	(s.uEDX >> 24) & 0xff);
368	RTPrintf("L1 Data Cache Line Size: %d bytes\n"
369	"L1 Data Cache Lines Per Tag: %d\n"
370	"L1 Data Cache Associativity: %s\n"
371	"L1 Data Cache Size: %d KB\n",
372	(s.uECX >> 0) & 0xff,
373	(s.uECX >> 8) & 0xff,
374	getCacheAss((s.uECX >> 16) & 0xff),
375	(s.uECX >> 24) & 0xff);
376	}
377
378	if (cExtFunctions >= 0x80000006)
379	{
380	ASMCpuId(0x80000006, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
381	RTPrintf("L2 TLB 2/4M Instr/Uni: %s %4d entries\n"
382	"L2 TLB 2/4M Data: %s %4d entries\n",
383	getL2CacheAss((s.uEAX >> 12) & 0xf), (s.uEAX >> 0) & 0xfff,
384	getL2CacheAss((s.uEAX >> 28) & 0xf), (s.uEAX >> 16) & 0xfff);
385	RTPrintf("L2 TLB 4K Instr/Uni: %s %4d entries\n"
386	"L2 TLB 4K Data: %s %4d entries\n",
387	getL2CacheAss((s.uEBX >> 12) & 0xf), (s.uEBX >> 0) & 0xfff,
388	getL2CacheAss((s.uEBX >> 28) & 0xf), (s.uEBX >> 16) & 0xfff);
389	RTPrintf("L2 Cache Line Size: %d bytes\n"
390	"L2 Cache Lines Per Tag: %d\n"
391	"L2 Cache Associativity: %s\n"
392	"L2 Cache Size: %d KB\n",
393	(s.uEDX >> 0) & 0xff,
394	(s.uEDX >> 8) & 0xf,
395	getL2CacheAss((s.uEDX >> 12) & 0xf),
396	(s.uEDX >> 16) & 0xffff);
397	}
398
399	if (cExtFunctions >= 0x80000007)
400	{
401	ASMCpuId(0x80000007, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
402	RTPrintf("APM Features: ");
403	if (s.uEDX & RT_BIT(0)) RTPrintf(" TS");
404	if (s.uEDX & RT_BIT(1)) RTPrintf(" FID");
405	if (s.uEDX & RT_BIT(2)) RTPrintf(" VID");
406	if (s.uEDX & RT_BIT(3)) RTPrintf(" TTP");
407	if (s.uEDX & RT_BIT(4)) RTPrintf(" TM");
408	if (s.uEDX & RT_BIT(5)) RTPrintf(" STC");
409	if (s.uEDX & RT_BIT(6)) RTPrintf(" 6");
410	if (s.uEDX & RT_BIT(7)) RTPrintf(" 7");
411	if (s.uEDX & RT_BIT(8)) RTPrintf(" TscInvariant");
412	for (iBit = 9; iBit < 32; iBit++)
413	if (s.uEDX & RT_BIT(iBit))
414	RTPrintf(" %d", iBit);
415	RTPrintf("\n");
416	}
417
418	if (cExtFunctions >= 0x80000008)
419	{
420	ASMCpuId(0x80000008, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
421	RTPrintf("Physical Address Width: %d bits\n"
422	"Virtual Address Width: %d bits\n",
423	(s.uEAX >> 0) & 0xff,
424	(s.uEAX >> 8) & 0xff);
425	RTPrintf("Physical Core Count: %d\n",
426	((s.uECX >> 0) & 0xff) + 1);
427	if ((s.uECX >> 12) & 0xf)
428	RTPrintf("ApicIdCoreIdSize: %d bits\n", (s.uECX >> 12) & 0xf);
429	}
430
431	if (cExtFunctions >= 0x8000000a)
432	{
433	ASMCpuId(0x8000000a, &s.uEAX, &s.uEBX, &s.uECX, &s.uEDX);
434	RTPrintf("SVM Revision: %d (%#x)\n"
435	"Number of Address Space IDs: %d (%#x)\n",
436	s.uEAX & 0xff, s.uEAX & 0xff,
437	s.uEBX, s.uEBX);
438	}
439	}
440	#endif /* !PIC \|\| !X86 */
441
442
443	static void tstASMAtomicXchgU8(void)
444	{
445	struct
446	{
447	uint8_t u8Dummy0;
448	uint8_t u8;
449	uint8_t u8Dummy1;
450	} s;
451
452	s.u8 = 0;
453	s.u8Dummy0 = s.u8Dummy1 = 0x42;
454	CHECKOP(ASMAtomicXchgU8(&s.u8, 1), 0, "%#x", uint8_t);
455	CHECKVAL(s.u8, 1, "%#x");
456
457	CHECKOP(ASMAtomicXchgU8(&s.u8, 0), 1, "%#x", uint8_t);
458	CHECKVAL(s.u8, 0, "%#x");
459
460	CHECKOP(ASMAtomicXchgU8(&s.u8, 0xff), 0, "%#x", uint8_t);
461	CHECKVAL(s.u8, 0xff, "%#x");
462
463	CHECKOP(ASMAtomicXchgU8(&s.u8, 0x87), 0xffff, "%#x", uint8_t);
464	CHECKVAL(s.u8, 0x87, "%#x");
465	CHECKVAL(s.u8Dummy0, 0x42, "%#x");
466	CHECKVAL(s.u8Dummy1, 0x42, "%#x");
467	}
468
469
470	static void tstASMAtomicXchgU16(void)
471	{
472	struct
473	{
474	uint16_t u16Dummy0;
475	uint16_t u16;
476	uint16_t u16Dummy1;
477	} s;
478
479	s.u16 = 0;
480	s.u16Dummy0 = s.u16Dummy1 = 0x1234;
481	CHECKOP(ASMAtomicXchgU16(&s.u16, 1), 0, "%#x", uint16_t);
482	CHECKVAL(s.u16, 1, "%#x");
483
484	CHECKOP(ASMAtomicXchgU16(&s.u16, 0), 1, "%#x", uint16_t);
485	CHECKVAL(s.u16, 0, "%#x");
486
487	CHECKOP(ASMAtomicXchgU16(&s.u16, 0xffff), 0, "%#x", uint16_t);
488	CHECKVAL(s.u16, 0xffff, "%#x");
489
490	CHECKOP(ASMAtomicXchgU16(&s.u16, 0x8765), 0xffff, "%#x", uint16_t);
491	CHECKVAL(s.u16, 0x8765, "%#x");
492	CHECKVAL(s.u16Dummy0, 0x1234, "%#x");
493	CHECKVAL(s.u16Dummy1, 0x1234, "%#x");
494	}
495
496
497	static void tstASMAtomicXchgU32(void)
498	{
499	struct
500	{
501	uint32_t u32Dummy0;
502	uint32_t u32;
503	uint32_t u32Dummy1;
504	} s;
505
506	s.u32 = 0;
507	s.u32Dummy0 = s.u32Dummy1 = 0x11223344;
508
509	CHECKOP(ASMAtomicXchgU32(&s.u32, 1), 0, "%#x", uint32_t);
510	CHECKVAL(s.u32, 1, "%#x");
511
512	CHECKOP(ASMAtomicXchgU32(&s.u32, 0), 1, "%#x", uint32_t);
513	CHECKVAL(s.u32, 0, "%#x");
514
515	CHECKOP(ASMAtomicXchgU32(&s.u32, ~0U), 0, "%#x", uint32_t);
516	CHECKVAL(s.u32, ~0U, "%#x");
517
518	CHECKOP(ASMAtomicXchgU32(&s.u32, 0x87654321), ~0U, "%#x", uint32_t);
519	CHECKVAL(s.u32, 0x87654321, "%#x");
520
521	CHECKVAL(s.u32Dummy0, 0x11223344, "%#x");
522	CHECKVAL(s.u32Dummy1, 0x11223344, "%#x");
523	}
524
525
526	static void tstASMAtomicXchgU64(void)
527	{
528	struct
529	{
530	uint64_t u64Dummy0;
531	uint64_t u64;
532	uint64_t u64Dummy1;
533	} s;
534
535	s.u64 = 0;
536	s.u64Dummy0 = s.u64Dummy1 = 0x1122334455667788ULL;
537
538	CHECKOP(ASMAtomicXchgU64(&s.u64, 1), 0ULL, "%#llx", uint64_t);
539	CHECKVAL(s.u64, 1ULL, "%#llx");
540
541	CHECKOP(ASMAtomicXchgU64(&s.u64, 0), 1ULL, "%#llx", uint64_t);
542	CHECKVAL(s.u64, 0ULL, "%#llx");
543
544	CHECKOP(ASMAtomicXchgU64(&s.u64, ~0ULL), 0ULL, "%#llx", uint64_t);
545	CHECKVAL(s.u64, ~0ULL, "%#llx");
546
547	CHECKOP(ASMAtomicXchgU64(&s.u64, 0xfedcba0987654321ULL), ~0ULL, "%#llx", uint64_t);
548	CHECKVAL(s.u64, 0xfedcba0987654321ULL, "%#llx");
549
550	CHECKVAL(s.u64Dummy0, 0x1122334455667788ULL, "%#x");
551	CHECKVAL(s.u64Dummy1, 0x1122334455667788ULL, "%#x");
552	}
553
554
555	#ifdef RT_ARCH_AMD64
556	static void tstASMAtomicXchgU128(void)
557	{
558	struct
559	{
560	RTUINT128U u128Dummy0;
561	RTUINT128U u128;
562	RTUINT128U u128Dummy1;
563	} s;
564	RTUINT128U u128Ret;
565	RTUINT128U u128Arg;
566
567
568	s.u128Dummy0.s.Lo = s.u128Dummy0.s.Hi = 0x1122334455667788;
569	s.u128.s.Lo = 0;
570	s.u128.s.Hi = 0;
571	s.u128Dummy1 = s.u128Dummy0;
572
573	u128Arg.s.Lo = 1;
574	u128Arg.s.Hi = 0;
575	u128Ret.u = ASMAtomicXchgU128(&s.u128.u, u128Arg.u);
576	CHECKVAL(u128Ret.s.Lo, 0ULL, "%#llx");
577	CHECKVAL(u128Ret.s.Hi, 0ULL, "%#llx");
578	CHECKVAL(s.u128.s.Lo, 1ULL, "%#llx");
579	CHECKVAL(s.u128.s.Hi, 0ULL, "%#llx");
580
581	u128Arg.s.Lo = 0;
582	u128Arg.s.Hi = 0;
583	u128Ret.u = ASMAtomicXchgU128(&s.u128.u, u128Arg.u);
584	CHECKVAL(u128Ret.s.Lo, 1ULL, "%#llx");
585	CHECKVAL(u128Ret.s.Hi, 0ULL, "%#llx");
586	CHECKVAL(s.u128.s.Lo, 0ULL, "%#llx");
587	CHECKVAL(s.u128.s.Hi, 0ULL, "%#llx");
588
589	u128Arg.s.Lo = ~0ULL;
590	u128Arg.s.Hi = ~0ULL;
591	u128Ret.u = ASMAtomicXchgU128(&s.u128.u, u128Arg.u);
592	CHECKVAL(u128Ret.s.Lo, 0ULL, "%#llx");
593	CHECKVAL(u128Ret.s.Hi, 0ULL, "%#llx");
594	CHECKVAL(s.u128.s.Lo, ~0ULL, "%#llx");
595	CHECKVAL(s.u128.s.Hi, ~0ULL, "%#llx");
596
597
598	u128Arg.s.Lo = 0xfedcba0987654321ULL;
599	u128Arg.s.Hi = 0x8897a6b5c4d3e2f1ULL;
600	u128Ret.u = ASMAtomicXchgU128(&s.u128.u, u128Arg.u);
601	CHECKVAL(u128Ret.s.Lo, ~0ULL, "%#llx");
602	CHECKVAL(u128Ret.s.Hi, ~0ULL, "%#llx");
603	CHECKVAL(s.u128.s.Lo, 0xfedcba0987654321ULL, "%#llx");
604	CHECKVAL(s.u128.s.Hi, 0x8897a6b5c4d3e2f1ULL, "%#llx");
605
606	CHECKVAL(s.u128Dummy0.s.Lo, 0x1122334455667788, "%#llx");
607	CHECKVAL(s.u128Dummy0.s.Hi, 0x1122334455667788, "%#llx");
608	CHECKVAL(s.u128Dummy1.s.Lo, 0x1122334455667788, "%#llx");
609	CHECKVAL(s.u128Dummy1.s.Hi, 0x1122334455667788, "%#llx");
610	}
611	#endif
612
613
614	static void tstASMAtomicXchgPtr(void)
615	{
616	void *pv = NULL;
617
618	CHECKOP(ASMAtomicXchgPtr(&pv, (void )(~(uintptr_t)0)), NULL, "%p", void );
619	CHECKVAL(pv, (void *)(~(uintptr_t)0), "%p");
620
621	CHECKOP(ASMAtomicXchgPtr(&pv, (void )0x87654321), (void )(~(uintptr_t)0), "%p", void *);
622	CHECKVAL(pv, (void *)0x87654321, "%p");
623
624	CHECKOP(ASMAtomicXchgPtr(&pv, NULL), (void )0x87654321, "%p", void );
625	CHECKVAL(pv, NULL, "%p");
626	}
627
628
629	static void tstASMAtomicCmpXchgU32(void)
630	{
631	uint32_t u32 = 0xffffffff;
632
633	CHECKOP(ASMAtomicCmpXchgU32(&u32, 0, 0), false, "%d", bool);
634	CHECKVAL(u32, 0xffffffff, "%x");
635
636	CHECKOP(ASMAtomicCmpXchgU32(&u32, 0, 0xffffffff), true, "%d", bool);
637	CHECKVAL(u32, 0, "%x");
638
639	CHECKOP(ASMAtomicCmpXchgU32(&u32, 0x8008efd, 0xffffffff), false, "%d", bool);
640	CHECKVAL(u32, 0, "%x");
641
642	CHECKOP(ASMAtomicCmpXchgU32(&u32, 0x8008efd, 0), true, "%d", bool);
643	CHECKVAL(u32, 0x8008efd, "%x");
644	}
645
646
647	static void tstASMAtomicCmpXchgU64(void)
648	{
649	uint64_t u64 = 0xffffffffffffffULL;
650
651	CHECKOP(ASMAtomicCmpXchgU64(&u64, 0, 0), false, "%d", bool);
652	CHECKVAL(u64, 0xffffffffffffffULL, "%x");
653
654	CHECKOP(ASMAtomicCmpXchgU64(&u64, 0, 0xffffffffffffffULL), true, "%d", bool);
655	CHECKVAL(u64, 0, "%x");
656
657	CHECKOP(ASMAtomicCmpXchgU64(&u64, 0x80040008008efdULL, 0xffffffff), false, "%d", bool);
658	CHECKVAL(u64, 0, "%x");
659
660	CHECKOP(ASMAtomicCmpXchgU64(&u64, 0x80040008008efdULL, 0xffffffff00000000ULL), false, "%d", bool);
661	CHECKVAL(u64, 0, "%x");
662
663	CHECKOP(ASMAtomicCmpXchgU64(&u64, 0x80040008008efdULL, 0), true, "%d", bool);
664	CHECKVAL(u64, 0x80040008008efdULL, "%x");
665	}
666
667
668	static void tstASMAtomicCmpXchgExU32(void)
669	{
670	uint32_t u32 = 0xffffffff;
671	uint32_t u32Old = 0x80005111;
672
673	CHECKOP(ASMAtomicCmpXchgExU32(&u32, 0, 0, &u32Old), false, "%d", bool);
674	CHECKVAL(u32, 0xffffffff, "%x");
675	CHECKVAL(u32Old, 0xffffffff, "%x");
676
677	CHECKOP(ASMAtomicCmpXchgExU32(&u32, 0, 0xffffffff, &u32Old), true, "%d", bool);
678	CHECKVAL(u32, 0, "%x");
679	CHECKVAL(u32Old, 0xffffffff, "%x");
680
681	CHECKOP(ASMAtomicCmpXchgExU32(&u32, 0x8008efd, 0xffffffff, &u32Old), false, "%d", bool);
682	CHECKVAL(u32, 0, "%x");
683	CHECKVAL(u32Old, 0, "%x");
684
685	CHECKOP(ASMAtomicCmpXchgExU32(&u32, 0x8008efd, 0, &u32Old), true, "%d", bool);
686	CHECKVAL(u32, 0x8008efd, "%x");
687	CHECKVAL(u32Old, 0, "%x");
688
689	CHECKOP(ASMAtomicCmpXchgExU32(&u32, 0, 0x8008efd, &u32Old), true, "%d", bool);
690	CHECKVAL(u32, 0, "%x");
691	CHECKVAL(u32Old, 0x8008efd, "%x");
692	}
693
694
695	static void tstASMAtomicCmpXchgExU64(void)
696	{
697	uint64_t u64 = 0xffffffffffffffffULL;
698	uint64_t u64Old = 0x8000000051111111ULL;
699
700	CHECKOP(ASMAtomicCmpXchgExU64(&u64, 0, 0, &u64Old), false, "%d", bool);
701	CHECKVAL(u64, 0xffffffffffffffffULL, "%llx");
702	CHECKVAL(u64Old, 0xffffffffffffffffULL, "%llx");
703
704	CHECKOP(ASMAtomicCmpXchgExU64(&u64, 0, 0xffffffffffffffffULL, &u64Old), true, "%d", bool);
705	CHECKVAL(u64, 0ULL, "%llx");
706	CHECKVAL(u64Old, 0xffffffffffffffffULL, "%llx");
707
708	CHECKOP(ASMAtomicCmpXchgExU64(&u64, 0x80040008008efdULL, 0xffffffff, &u64Old), false, "%d", bool);
709	CHECKVAL(u64, 0ULL, "%llx");
710	CHECKVAL(u64Old, 0ULL, "%llx");
711
712	CHECKOP(ASMAtomicCmpXchgExU64(&u64, 0x80040008008efdULL, 0xffffffff00000000ULL, &u64Old), false, "%d", bool);
713	CHECKVAL(u64, 0ULL, "%llx");
714	CHECKVAL(u64Old, 0ULL, "%llx");
715
716	CHECKOP(ASMAtomicCmpXchgExU64(&u64, 0x80040008008efdULL, 0, &u64Old), true, "%d", bool);
717	CHECKVAL(u64, 0x80040008008efdULL, "%llx");
718	CHECKVAL(u64Old, 0ULL, "%llx");
719
720	CHECKOP(ASMAtomicCmpXchgExU64(&u64, 0, 0x80040008008efdULL, &u64Old), true, "%d", bool);
721	CHECKVAL(u64, 0ULL, "%llx");
722	CHECKVAL(u64Old, 0x80040008008efdULL, "%llx");
723	}
724
725
726	static void tstASMAtomicReadU64(void)
727	{
728	uint64_t u64 = 0;
729
730	CHECKOP(ASMAtomicReadU64(&u64), 0ULL, "%#llx", uint64_t);
731	CHECKVAL(u64, 0ULL, "%#llx");
732
733	u64 = ~0ULL;
734	CHECKOP(ASMAtomicReadU64(&u64), ~0ULL, "%#llx", uint64_t);
735	CHECKVAL(u64, ~0ULL, "%#llx");
736
737	u64 = 0xfedcba0987654321ULL;
738	CHECKOP(ASMAtomicReadU64(&u64), 0xfedcba0987654321ULL, "%#llx", uint64_t);
739	CHECKVAL(u64, 0xfedcba0987654321ULL, "%#llx");
740	}
741
742
743	static void tstASMAtomicAddS32(void)
744	{
745	int32_t i32Rc;
746	int32_t i32 = 10;
747	#define MYCHECK(op, rc, val) \
748	do { \
749	i32Rc = op; \
750	if (i32Rc != (rc)) \
751	{ \
752	RTPrintf("%s, %d: FAILURE: %s -> %d expected %d\n", __FUNCTION__, __LINE__, #op, i32Rc, rc); \
753	g_cErrors++; \
754	} \
755	if (i32 != (val)) \
756	{ \
757	RTPrintf("%s, %d: FAILURE: %s => i32=%d expected %d\n", __FUNCTION__, __LINE__, #op, i32, val); \
758	g_cErrors++; \
759	} \
760	} while (0)
761	MYCHECK(ASMAtomicAddS32(&i32, 1), 10, 11);
762	MYCHECK(ASMAtomicAddS32(&i32, -2), 11, 9);
763	MYCHECK(ASMAtomicAddS32(&i32, -9), 9, 0);
764	MYCHECK(ASMAtomicAddS32(&i32, -0x7fffffff), 0, -0x7fffffff);
765	MYCHECK(ASMAtomicAddS32(&i32, 0), -0x7fffffff, -0x7fffffff);
766	MYCHECK(ASMAtomicAddS32(&i32, 0x7fffffff), -0x7fffffff, 0);
767	MYCHECK(ASMAtomicAddS32(&i32, 0), 0, 0);
768	#undef MYCHECK
769	}
770
771
772	static void tstASMAtomicDecIncS32(void)
773	{
774	int32_t i32Rc;
775	int32_t i32 = 10;
776	#define MYCHECK(op, rc) \
777	do { \
778	i32Rc = op; \
779	if (i32Rc != (rc)) \
780	{ \
781	RTPrintf("%s, %d: FAILURE: %s -> %d expected %d\n", __FUNCTION__, __LINE__, #op, i32Rc, rc); \
782	g_cErrors++; \
783	} \
784	if (i32 != (rc)) \
785	{ \
786	RTPrintf("%s, %d: FAILURE: %s => i32=%d expected %d\n", __FUNCTION__, __LINE__, #op, i32, rc); \
787	g_cErrors++; \
788	} \
789	} while (0)
790	MYCHECK(ASMAtomicDecS32(&i32), 9);
791	MYCHECK(ASMAtomicDecS32(&i32), 8);
792	MYCHECK(ASMAtomicDecS32(&i32), 7);
793	MYCHECK(ASMAtomicDecS32(&i32), 6);
794	MYCHECK(ASMAtomicDecS32(&i32), 5);
795	MYCHECK(ASMAtomicDecS32(&i32), 4);
796	MYCHECK(ASMAtomicDecS32(&i32), 3);
797	MYCHECK(ASMAtomicDecS32(&i32), 2);
798	MYCHECK(ASMAtomicDecS32(&i32), 1);
799	MYCHECK(ASMAtomicDecS32(&i32), 0);
800	MYCHECK(ASMAtomicDecS32(&i32), -1);
801	MYCHECK(ASMAtomicDecS32(&i32), -2);
802	MYCHECK(ASMAtomicIncS32(&i32), -1);
803	MYCHECK(ASMAtomicIncS32(&i32), 0);
804	MYCHECK(ASMAtomicIncS32(&i32), 1);
805	MYCHECK(ASMAtomicIncS32(&i32), 2);
806	MYCHECK(ASMAtomicIncS32(&i32), 3);
807	MYCHECK(ASMAtomicDecS32(&i32), 2);
808	MYCHECK(ASMAtomicIncS32(&i32), 3);
809	MYCHECK(ASMAtomicDecS32(&i32), 2);
810	MYCHECK(ASMAtomicIncS32(&i32), 3);
811	#undef MYCHECK
812	}
813
814
815	static void tstASMAtomicAndOrU32(void)
816	{
817	uint32_t u32 = 0xffffffff;
818
819	ASMAtomicOrU32(&u32, 0xffffffff);
820	CHECKVAL(u32, 0xffffffff, "%x");
821
822	ASMAtomicAndU32(&u32, 0xffffffff);
823	CHECKVAL(u32, 0xffffffff, "%x");
824
825	ASMAtomicAndU32(&u32, 0x8f8f8f8f);
826	CHECKVAL(u32, 0x8f8f8f8f, "%x");
827
828	ASMAtomicOrU32(&u32, 0x70707070);
829	CHECKVAL(u32, 0xffffffff, "%x");
830
831	ASMAtomicAndU32(&u32, 1);
832	CHECKVAL(u32, 1, "%x");
833
834	ASMAtomicOrU32(&u32, 0x80000000);
835	CHECKVAL(u32, 0x80000001, "%x");
836
837	ASMAtomicAndU32(&u32, 0x80000000);
838	CHECKVAL(u32, 0x80000000, "%x");
839
840	ASMAtomicAndU32(&u32, 0);
841	CHECKVAL(u32, 0, "%x");
842
843	ASMAtomicOrU32(&u32, 0x42424242);
844	CHECKVAL(u32, 0x42424242, "%x");
845	}
846
847
848	void tstASMMemZeroPage(void)
849	{
850	struct
851	{
852	uint64_t u64Magic1;
853	uint8_t abPage[PAGE_SIZE];
854	uint64_t u64Magic2;
855	} Buf1, Buf2, Buf3;
856
857	Buf1.u64Magic1 = UINT64_C(0xffffffffffffffff);
858	memset(Buf1.abPage, 0x55, sizeof(Buf1.abPage));
859	Buf1.u64Magic2 = UINT64_C(0xffffffffffffffff);
860	Buf2.u64Magic1 = UINT64_C(0xffffffffffffffff);
861	memset(Buf2.abPage, 0x77, sizeof(Buf2.abPage));
862	Buf2.u64Magic2 = UINT64_C(0xffffffffffffffff);
863	Buf3.u64Magic1 = UINT64_C(0xffffffffffffffff);
864	memset(Buf3.abPage, 0x99, sizeof(Buf3.abPage));
865	Buf3.u64Magic2 = UINT64_C(0xffffffffffffffff);
866	ASMMemZeroPage(Buf1.abPage);
867	ASMMemZeroPage(Buf2.abPage);
868	ASMMemZeroPage(Buf3.abPage);
869	if ( Buf1.u64Magic1 != UINT64_C(0xffffffffffffffff)
870	\|\| Buf1.u64Magic2 != UINT64_C(0xffffffffffffffff)
871	\|\| Buf2.u64Magic1 != UINT64_C(0xffffffffffffffff)
872	\|\| Buf2.u64Magic2 != UINT64_C(0xffffffffffffffff)
873	\|\| Buf3.u64Magic1 != UINT64_C(0xffffffffffffffff)
874	\|\| Buf3.u64Magic2 != UINT64_C(0xffffffffffffffff))
875	{
876	RTPrintf("tstInlineAsm: ASMMemZeroPage violated one/both magic(s)!\n");
877	g_cErrors++;
878	}
879	for (unsigned i = 0; i < sizeof(Buf1.abPage); i++)
880	if (Buf1.abPage[i])
881	{
882	RTPrintf("tstInlineAsm: ASMMemZeroPage didn't clear byte at offset %#x!\n", i);
883	g_cErrors++;
884	}
885	for (unsigned i = 0; i < sizeof(Buf2.abPage); i++)
886	if (Buf2.abPage[i])
887	{
888	RTPrintf("tstInlineAsm: ASMMemZeroPage didn't clear byte at offset %#x!\n", i);
889	g_cErrors++;
890	}
891	for (unsigned i = 0; i < sizeof(Buf3.abPage); i++)
892	if (Buf3.abPage[i])
893	{
894	RTPrintf("tstInlineAsm: ASMMemZeroPage didn't clear byte at offset %#x!\n", i);
895	g_cErrors++;
896	}
897	}
898
899
900	void tstASMMemZero32(void)
901	{
902	struct
903	{
904	uint64_t u64Magic1;
905	uint8_t abPage[PAGE_SIZE - 32];
906	uint64_t u64Magic2;
907	} Buf1, Buf2, Buf3;
908
909	Buf1.u64Magic1 = UINT64_C(0xffffffffffffffff);
910	memset(Buf1.abPage, 0x55, sizeof(Buf1.abPage));
911	Buf1.u64Magic2 = UINT64_C(0xffffffffffffffff);
912	Buf2.u64Magic1 = UINT64_C(0xffffffffffffffff);
913	memset(Buf2.abPage, 0x77, sizeof(Buf2.abPage));
914	Buf2.u64Magic2 = UINT64_C(0xffffffffffffffff);
915	Buf3.u64Magic1 = UINT64_C(0xffffffffffffffff);
916	memset(Buf3.abPage, 0x99, sizeof(Buf3.abPage));
917	Buf3.u64Magic2 = UINT64_C(0xffffffffffffffff);
918	ASMMemZero32(Buf1.abPage, sizeof(Buf1.abPage));
919	ASMMemZero32(Buf2.abPage, sizeof(Buf2.abPage));
920	ASMMemZero32(Buf3.abPage, sizeof(Buf3.abPage));
921	if ( Buf1.u64Magic1 != UINT64_C(0xffffffffffffffff)
922	\|\| Buf1.u64Magic2 != UINT64_C(0xffffffffffffffff)
923	\|\| Buf2.u64Magic1 != UINT64_C(0xffffffffffffffff)
924	\|\| Buf2.u64Magic2 != UINT64_C(0xffffffffffffffff)
925	\|\| Buf3.u64Magic1 != UINT64_C(0xffffffffffffffff)
926	\|\| Buf3.u64Magic2 != UINT64_C(0xffffffffffffffff))
927	{
928	RTPrintf("tstInlineAsm: ASMMemZero32 violated one/both magic(s)!\n");
929	g_cErrors++;
930	}
931	for (unsigned i = 0; i < RT_ELEMENTS(Buf1.abPage); i++)
932	if (Buf1.abPage[i])
933	{
934	RTPrintf("tstInlineAsm: ASMMemZero32 didn't clear byte at offset %#x!\n", i);
935	g_cErrors++;
936	}
937	for (unsigned i = 0; i < RT_ELEMENTS(Buf2.abPage); i++)
938	if (Buf2.abPage[i])
939	{
940	RTPrintf("tstInlineAsm: ASMMemZero32 didn't clear byte at offset %#x!\n", i);
941	g_cErrors++;
942	}
943	for (unsigned i = 0; i < RT_ELEMENTS(Buf3.abPage); i++)
944	if (Buf3.abPage[i])
945	{
946	RTPrintf("tstInlineAsm: ASMMemZero32 didn't clear byte at offset %#x!\n", i);
947	g_cErrors++;
948	}
949	}
950
951
952	void tstASMMemFill32(void)
953	{
954	struct
955	{
956	uint64_t u64Magic1;
957	uint32_t au32Page[PAGE_SIZE / 4];
958	uint64_t u64Magic2;
959	} Buf1;
960	struct
961	{
962	uint64_t u64Magic1;
963	uint32_t au32Page[(PAGE_SIZE / 4) - 3];
964	uint64_t u64Magic2;
965	} Buf2;
966	struct
967	{
968	uint64_t u64Magic1;
969	uint32_t au32Page[(PAGE_SIZE / 4) - 1];
970	uint64_t u64Magic2;
971	} Buf3;
972
973	Buf1.u64Magic1 = UINT64_C(0xffffffffffffffff);
974	memset(Buf1.au32Page, 0x55, sizeof(Buf1.au32Page));
975	Buf1.u64Magic2 = UINT64_C(0xffffffffffffffff);
976	Buf2.u64Magic1 = UINT64_C(0xffffffffffffffff);
977	memset(Buf2.au32Page, 0x77, sizeof(Buf2.au32Page));
978	Buf2.u64Magic2 = UINT64_C(0xffffffffffffffff);
979	Buf3.u64Magic1 = UINT64_C(0xffffffffffffffff);
980	memset(Buf3.au32Page, 0x99, sizeof(Buf3.au32Page));
981	Buf3.u64Magic2 = UINT64_C(0xffffffffffffffff);
982	ASMMemFill32(Buf1.au32Page, sizeof(Buf1.au32Page), 0xdeadbeef);
983	ASMMemFill32(Buf2.au32Page, sizeof(Buf2.au32Page), 0xcafeff01);
984	ASMMemFill32(Buf3.au32Page, sizeof(Buf3.au32Page), 0xf00dd00f);
985	if ( Buf1.u64Magic1 != UINT64_C(0xffffffffffffffff)
986	\|\| Buf1.u64Magic2 != UINT64_C(0xffffffffffffffff)
987	\|\| Buf2.u64Magic1 != UINT64_C(0xffffffffffffffff)
988	\|\| Buf2.u64Magic2 != UINT64_C(0xffffffffffffffff)
989	\|\| Buf3.u64Magic1 != UINT64_C(0xffffffffffffffff)
990	\|\| Buf3.u64Magic2 != UINT64_C(0xffffffffffffffff))
991	{
992	RTPrintf("tstInlineAsm: ASMMemFill32 violated one/both magic(s)!\n");
993	g_cErrors++;
994	}
995	for (unsigned i = 0; i < RT_ELEMENTS(Buf1.au32Page); i++)
996	if (Buf1.au32Page[i] != 0xdeadbeef)
997	{
998	RTPrintf("tstInlineAsm: ASMMemFill32 %#x: %#x exepcted %#x\n", i, Buf1.au32Page[i], 0xdeadbeef);
999	g_cErrors++;
1000	}
1001	for (unsigned i = 0; i < RT_ELEMENTS(Buf2.au32Page); i++)
1002	if (Buf2.au32Page[i] != 0xcafeff01)
1003	{
1004	RTPrintf("tstInlineAsm: ASMMemFill32 %#x: %#x exepcted %#x\n", i, Buf2.au32Page[i], 0xcafeff01);
1005	g_cErrors++;
1006	}
1007	for (unsigned i = 0; i < RT_ELEMENTS(Buf3.au32Page); i++)
1008	if (Buf3.au32Page[i] != 0xf00dd00f)
1009	{
1010	RTPrintf("tstInlineAsm: ASMMemFill32 %#x: %#x exepcted %#x\n", i, Buf3.au32Page[i], 0xf00dd00f);
1011	g_cErrors++;
1012	}
1013	}
1014
1015
1016
1017	void tstASMMath(void)
1018	{
1019	uint64_t u64 = ASMMult2xU32RetU64(UINT32_C(0x80000000), UINT32_C(0x10000000));
1020	CHECKVAL(u64, UINT64_C(0x0800000000000000), "%#018RX64");
1021
1022	uint32_t u32 = ASMDivU64ByU32RetU32(UINT64_C(0x0800000000000000), UINT32_C(0x10000000));
1023	CHECKVAL(u32, UINT32_C(0x80000000), "%#010RX32");
1024
1025	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0x0000000000000001), UINT32_C(0x00000001), UINT32_C(0x00000001));
1026	CHECKVAL(u64, UINT64_C(0x0000000000000001), "%#018RX64");
1027	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0x0000000100000000), UINT32_C(0x80000000), UINT32_C(0x00000002));
1028	CHECKVAL(u64, UINT64_C(0x4000000000000000), "%#018RX64");
1029	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0xfedcba9876543210), UINT32_C(0xffffffff), UINT32_C(0xffffffff));
1030	CHECKVAL(u64, UINT64_C(0xfedcba9876543210), "%#018RX64");
1031	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0xffffffffffffffff), UINT32_C(0xffffffff), UINT32_C(0xffffffff));
1032	CHECKVAL(u64, UINT64_C(0xffffffffffffffff), "%#018RX64");
1033	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0xffffffffffffffff), UINT32_C(0xfffffff0), UINT32_C(0xffffffff));
1034	CHECKVAL(u64, UINT64_C(0xfffffff0fffffff0), "%#018RX64");
1035	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0x3415934810359583), UINT32_C(0x58734981), UINT32_C(0xf8694045));
1036	CHECKVAL(u64, UINT64_C(0x128b9c3d43184763), "%#018RX64");
1037	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0x3415934810359583), UINT32_C(0xf8694045), UINT32_C(0x58734981));
1038	CHECKVAL(u64, UINT64_C(0x924719355cd35a27), "%#018RX64");
1039
1040	#if 0 /* bird: question is whether this should trap or not:
1041	*
1042	* frank: Of course it must trap:
1043	*
1044	* 0xfffffff8 * 0x77d7daf8 = 0x77d7daf441412840
1045	*
1046	* During the following division, the quotient must fit into a 32-bit register.
1047	* Therefore the smallest valid divisor is
1048	*
1049	* (0x77d7daf441412840 >> 32) + 1 = 0x77d7daf5
1050	*
1051	* which is definitely greater than 0x3b9aca00.
1052	*
1053	* bird: No, the C version does not crash. So, the question is whether there any
1054	* code depending on it not crashing.
1055	*
1056	* Of course the assembly versions of the code crash right now for the reasons you've
1057	* given, but the the 32-bit MSC version does not crash.
1058	*
1059	* frank: The C version does not crash but delivers incorrect results for this case.
1060	* The reason is
1061	*
1062	* u.s.Hi = (unsigned long)(u64Hi / u32C);
1063	*
1064	* Here the division is actually 64-bit by 64-bit but the 64-bit result is truncated
1065	* to 32 bit. If using this (optimized and fast) function we should just be sure that
1066	* the operands are in a valid range.
1067	*/
1068	u64 = ASMMultU64ByU32DivByU32(UINT64_C(0xfffffff8c65d6731), UINT32_C(0x77d7daf8), UINT32_C(0x3b9aca00));
1069	CHECKVAL(u64, UINT64_C(0x02b8f9a2aa74e3dc), "%#018RX64");
1070	#endif
1071	}
1072
1073
1074	void tstASMByteSwap(void)
1075	{
1076	RTPrintf("tstInlineASM: TESTING - ASMByteSwap*\n");
1077
1078	uint64_t u64In = UINT64_C(0x0011223344556677);
1079	uint64_t u64Out = ASMByteSwapU64(u64In);
1080	CHECKVAL(u64In, UINT64_C(0x0011223344556677), "%#018RX64");
1081	CHECKVAL(u64Out, UINT64_C(0x7766554433221100), "%#018RX64");
1082	u64Out = ASMByteSwapU64(u64Out);
1083	CHECKVAL(u64Out, u64In, "%#018RX64");
1084	u64In = UINT64_C(0x0123456789abcdef);
1085	u64Out = ASMByteSwapU64(u64In);
1086	CHECKVAL(u64In, UINT64_C(0x0123456789abcdef), "%#018RX64");
1087	CHECKVAL(u64Out, UINT64_C(0xefcdab8967452301), "%#018RX64");
1088	u64Out = ASMByteSwapU64(u64Out);
1089	CHECKVAL(u64Out, u64In, "%#018RX64");
1090	u64In = 0;
1091	u64Out = ASMByteSwapU64(u64In);
1092	CHECKVAL(u64Out, u64In, "%#018RX64");
1093	u64In = ~(uint64_t)0;
1094	u64Out = ASMByteSwapU64(u64In);
1095	CHECKVAL(u64Out, u64In, "%#018RX64");
1096
1097	uint32_t u32In = UINT32_C(0x00112233);
1098	uint32_t u32Out = ASMByteSwapU32(u32In);
1099	CHECKVAL(u32In, UINT32_C(0x00112233), "%#010RX32");
1100	CHECKVAL(u32Out, UINT32_C(0x33221100), "%#010RX32");
1101	u32Out = ASMByteSwapU32(u32Out);
1102	CHECKVAL(u32Out, u32In, "%#010RX32");
1103	u32In = UINT32_C(0x12345678);
1104	u32Out = ASMByteSwapU32(u32In);
1105	CHECKVAL(u32In, UINT32_C(0x12345678), "%#010RX32");
1106	CHECKVAL(u32Out, UINT32_C(0x78563412), "%#010RX32");
1107	u32Out = ASMByteSwapU32(u32Out);
1108	CHECKVAL(u32Out, u32In, "%#010RX32");
1109	u32In = 0;
1110	u32Out = ASMByteSwapU32(u32In);
1111	CHECKVAL(u32Out, u32In, "%#010RX32");
1112	u32In = ~(uint32_t)0;
1113	u32Out = ASMByteSwapU32(u32In);
1114	CHECKVAL(u32Out, u32In, "%#010RX32");
1115
1116	uint16_t u16In = UINT16_C(0x0011);
1117	uint16_t u16Out = ASMByteSwapU16(u16In);
1118	CHECKVAL(u16In, UINT16_C(0x0011), "%#06RX16");
1119	CHECKVAL(u16Out, UINT16_C(0x1100), "%#06RX16");
1120	u16Out = ASMByteSwapU16(u16Out);
1121	CHECKVAL(u16Out, u16In, "%#06RX16");
1122	u16In = UINT16_C(0x1234);
1123	u16Out = ASMByteSwapU16(u16In);
1124	CHECKVAL(u16In, UINT16_C(0x1234), "%#06RX16");
1125	CHECKVAL(u16Out, UINT16_C(0x3412), "%#06RX16");
1126	u16Out = ASMByteSwapU16(u16Out);
1127	CHECKVAL(u16Out, u16In, "%#06RX16");
1128	u16In = 0;
1129	u16Out = ASMByteSwapU16(u16In);
1130	CHECKVAL(u16Out, u16In, "%#06RX16");
1131	u16In = ~(uint16_t)0;
1132	u16Out = ASMByteSwapU16(u16In);
1133	CHECKVAL(u16Out, u16In, "%#06RX16");
1134	}
1135
1136
1137	void tstASMBench(void)
1138	{
1139	/*
1140	* Make this static. We don't want to have this located on the stack.
1141	*/
1142	static uint8_t volatile s_u8;
1143	static int8_t volatile s_i8;
1144	static uint16_t volatile s_u16;
1145	static int16_t volatile s_i16;
1146	static uint32_t volatile s_u32;
1147	static int32_t volatile s_i32;
1148	static uint64_t volatile s_u64;
1149	static int64_t volatile s_i64;
1150	register unsigned i;
1151	const unsigned cRounds = 1000000;
1152	register uint64_t u64Elapsed;
1153
1154	RTPrintf("tstInlineASM: Benchmarking:\n");
1155
1156	#define BENCH(op, str) \
1157	RTThreadYield(); \
1158	u64Elapsed = ASMReadTSC(); \
1159	for (i = cRounds; i > 0; i--) \
1160	op; \
1161	u64Elapsed = ASMReadTSC() - u64Elapsed; \
1162	RTPrintf(" %-30s %3llu cycles\n", str, u64Elapsed / cRounds);
1163
1164	BENCH(s_u32 = 0, "s_u32 = 0:");
1165	BENCH(ASMAtomicUoWriteU8(&s_u8, 0), "ASMAtomicUoWriteU8:");
1166	BENCH(ASMAtomicUoWriteS8(&s_i8, 0), "ASMAtomicUoWriteS8:");
1167	BENCH(ASMAtomicUoWriteU16(&s_u16, 0), "ASMAtomicUoWriteU16:");
1168	BENCH(ASMAtomicUoWriteS16(&s_i16, 0), "ASMAtomicUoWriteS16:");
1169	BENCH(ASMAtomicUoWriteU32(&s_u32, 0), "ASMAtomicUoWriteU32:");
1170	BENCH(ASMAtomicUoWriteS32(&s_i32, 0), "ASMAtomicUoWriteS32:");
1171	BENCH(ASMAtomicUoWriteU64(&s_u64, 0), "ASMAtomicUoWriteU64:");
1172	BENCH(ASMAtomicUoWriteS64(&s_i64, 0), "ASMAtomicUoWriteS64:");
1173	BENCH(ASMAtomicWriteU8(&s_u8, 0), "ASMAtomicWriteU8:");
1174	BENCH(ASMAtomicWriteS8(&s_i8, 0), "ASMAtomicWriteS8:");
1175	BENCH(ASMAtomicWriteU16(&s_u16, 0), "ASMAtomicWriteU16:");
1176	BENCH(ASMAtomicWriteS16(&s_i16, 0), "ASMAtomicWriteS16:");
1177	BENCH(ASMAtomicWriteU32(&s_u32, 0), "ASMAtomicWriteU32:");
1178	BENCH(ASMAtomicWriteS32(&s_i32, 0), "ASMAtomicWriteS32:");
1179	BENCH(ASMAtomicWriteU64(&s_u64, 0), "ASMAtomicWriteU64:");
1180	BENCH(ASMAtomicWriteS64(&s_i64, 0), "ASMAtomicWriteS64:");
1181	BENCH(ASMAtomicXchgU8(&s_u8, 0), "ASMAtomicXchgU8:");
1182	BENCH(ASMAtomicXchgS8(&s_i8, 0), "ASMAtomicXchgS8:");
1183	BENCH(ASMAtomicXchgU16(&s_u16, 0), "ASMAtomicXchgU16:");
1184	BENCH(ASMAtomicXchgS16(&s_i16, 0), "ASMAtomicXchgS16:");
1185	BENCH(ASMAtomicXchgU32(&s_u32, 0), "ASMAtomicXchgU32:");
1186	BENCH(ASMAtomicXchgS32(&s_i32, 0), "ASMAtomicXchgS32:");
1187	BENCH(ASMAtomicXchgU64(&s_u64, 0), "ASMAtomicXchgU64:");
1188	BENCH(ASMAtomicXchgS64(&s_i64, 0), "ASMAtomicXchgS64:");
1189	BENCH(ASMAtomicCmpXchgU32(&s_u32, 0, 0), "ASMAtomicCmpXchgU32:");
1190	BENCH(ASMAtomicCmpXchgS32(&s_i32, 0, 0), "ASMAtomicCmpXchgS32:");
1191	BENCH(ASMAtomicCmpXchgU64(&s_u64, 0, 0), "ASMAtomicCmpXchgU64:");
1192	BENCH(ASMAtomicCmpXchgS64(&s_i64, 0, 0), "ASMAtomicCmpXchgS64:");
1193	BENCH(ASMAtomicCmpXchgU32(&s_u32, 0, 1), "ASMAtomicCmpXchgU32/neg:");
1194	BENCH(ASMAtomicCmpXchgS32(&s_i32, 0, 1), "ASMAtomicCmpXchgS32/neg:");
1195	BENCH(ASMAtomicCmpXchgU64(&s_u64, 0, 1), "ASMAtomicCmpXchgU64/neg:");
1196	BENCH(ASMAtomicCmpXchgS64(&s_i64, 0, 1), "ASMAtomicCmpXchgS64/neg:");
1197	BENCH(ASMAtomicIncU32(&s_u32), "ASMAtomicIncU32:");
1198	BENCH(ASMAtomicIncS32(&s_i32), "ASMAtomicIncS32:");
1199	BENCH(ASMAtomicDecU32(&s_u32), "ASMAtomicDecU32:");
1200	BENCH(ASMAtomicDecS32(&s_i32), "ASMAtomicDecS32:");
1201	BENCH(ASMAtomicAddU32(&s_u32, 5), "ASMAtomicAddU32:");
1202	BENCH(ASMAtomicAddS32(&s_i32, 5), "ASMAtomicAddS32:");
1203
1204	RTPrintf("Done.\n");
1205
1206	#undef BENCH
1207	}
1208
1209
1210	int main(int argc, char *argv[])
1211	{
1212	RTR3Init();
1213	RTPrintf("tstInlineAsm: TESTING\n");
1214
1215	/*
1216	* Execute the tests.
1217	*/
1218	#if !defined(PIC) \|\| !defined(RT_ARCH_X86)
1219	tstASMCpuId();
1220	#endif
1221	tstASMAtomicXchgU8();
1222	tstASMAtomicXchgU16();
1223	tstASMAtomicXchgU32();
1224	tstASMAtomicXchgU64();
1225	#ifdef RT_ARCH_AMD64
1226	tstASMAtomicXchgU128();
1227	#endif
1228	tstASMAtomicXchgPtr();
1229	tstASMAtomicCmpXchgU32();
1230	tstASMAtomicCmpXchgU64();
1231	tstASMAtomicCmpXchgExU32();
1232	tstASMAtomicCmpXchgExU64();
1233	tstASMAtomicReadU64();
1234	tstASMAtomicAddS32();
1235	tstASMAtomicDecIncS32();
1236	tstASMAtomicAndOrU32();
1237	tstASMMemZeroPage();
1238	tstASMMemZero32();
1239	tstASMMemFill32();
1240	tstASMMath();
1241	tstASMByteSwap();
1242
1243	tstASMBench();
1244
1245	/*
1246	* Show the result.
1247	*/
1248	if (!g_cErrors)
1249	RTPrintf("tstInlineAsm: SUCCESS\n", g_cErrors);
1250	else
1251	RTPrintf("tstInlineAsm: FAILURE - %d errors\n", g_cErrors);
1252	return !!g_cErrors;
1253	}
1254

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source: vbox/trunk/src/VBox/Runtime/testcase/tstInlineAsm.cpp@ 11019

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