diff options
Diffstat (limited to 'qemu/tests/tcg/test-i386.c')
| -rw-r--r-- | qemu/tests/tcg/test-i386.c | 2765 |
1 files changed, 0 insertions, 2765 deletions
diff --git a/qemu/tests/tcg/test-i386.c b/qemu/tests/tcg/test-i386.c deleted file mode 100644 index b05572b73..000000000 --- a/qemu/tests/tcg/test-i386.c +++ /dev/null @@ -1,2765 +0,0 @@ -/* - * x86 CPU test - * - * Copyright (c) 2003 Fabrice Bellard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ -#define _GNU_SOURCE -#include "qemu/compiler.h" -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <inttypes.h> -#include <math.h> -#include <signal.h> -#include <setjmp.h> -#include <errno.h> -#include <sys/ucontext.h> -#include <sys/mman.h> - -#if !defined(__x86_64__) -//#define TEST_VM86 -#define TEST_SEGS -#endif -//#define LINUX_VM86_IOPL_FIX -//#define TEST_P4_FLAGS -#ifdef __SSE__ -#define TEST_SSE -#define TEST_CMOV 1 -#define TEST_FCOMI 1 -#else -#undef TEST_SSE -#define TEST_CMOV 1 -#define TEST_FCOMI 1 -#endif - -#if defined(__x86_64__) -#define FMT64X "%016lx" -#define FMTLX "%016lx" -#define X86_64_ONLY(x) x -#else -#define FMT64X "%016" PRIx64 -#define FMTLX "%08lx" -#define X86_64_ONLY(x) -#endif - -#ifdef TEST_VM86 -#include <asm/vm86.h> -#endif - -#define xglue(x, y) x ## y -#define glue(x, y) xglue(x, y) -#define stringify(s) tostring(s) -#define tostring(s) #s - -#define CC_C 0x0001 -#define CC_P 0x0004 -#define CC_A 0x0010 -#define CC_Z 0x0040 -#define CC_S 0x0080 -#define CC_O 0x0800 - -#define __init_call __attribute__ ((unused,__section__ ("initcall"))) - -#define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A) - -#if defined(__x86_64__) -static inline long i2l(long v) -{ - return v | ((v ^ 0xabcd) << 32); -} -#else -static inline long i2l(long v) -{ - return v; -} -#endif - -#define OP add -#include "test-i386.h" - -#define OP sub -#include "test-i386.h" - -#define OP xor -#include "test-i386.h" - -#define OP and -#include "test-i386.h" - -#define OP or -#include "test-i386.h" - -#define OP cmp -#include "test-i386.h" - -#define OP adc -#define OP_CC -#include "test-i386.h" - -#define OP sbb -#define OP_CC -#include "test-i386.h" - -#define OP inc -#define OP_CC -#define OP1 -#include "test-i386.h" - -#define OP dec -#define OP_CC -#define OP1 -#include "test-i386.h" - -#define OP neg -#define OP_CC -#define OP1 -#include "test-i386.h" - -#define OP not -#define OP_CC -#define OP1 -#include "test-i386.h" - -#undef CC_MASK -#define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O) - -#define OP shl -#include "test-i386-shift.h" - -#define OP shr -#include "test-i386-shift.h" - -#define OP sar -#include "test-i386-shift.h" - -#define OP rol -#include "test-i386-shift.h" - -#define OP ror -#include "test-i386-shift.h" - -#define OP rcr -#define OP_CC -#include "test-i386-shift.h" - -#define OP rcl -#define OP_CC -#include "test-i386-shift.h" - -#define OP shld -#define OP_SHIFTD -#define OP_NOBYTE -#include "test-i386-shift.h" - -#define OP shrd -#define OP_SHIFTD -#define OP_NOBYTE -#include "test-i386-shift.h" - -/* XXX: should be more precise ? */ -#undef CC_MASK -#define CC_MASK (CC_C) - -#define OP bt -#define OP_NOBYTE -#include "test-i386-shift.h" - -#define OP bts -#define OP_NOBYTE -#include "test-i386-shift.h" - -#define OP btr -#define OP_NOBYTE -#include "test-i386-shift.h" - -#define OP btc -#define OP_NOBYTE -#include "test-i386-shift.h" - -/* lea test (modrm support) */ -#define TEST_LEAQ(STR)\ -{\ - asm("lea " STR ", %0"\ - : "=r" (res)\ - : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\ - printf("lea %s = " FMTLX "\n", STR, res);\ -} - -#define TEST_LEA(STR)\ -{\ - asm("lea " STR ", %0"\ - : "=r" (res)\ - : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\ - printf("lea %s = " FMTLX "\n", STR, res);\ -} - -#define TEST_LEA16(STR)\ -{\ - asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\ - : "=r" (res)\ - : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\ - printf("lea %s = %08lx\n", STR, res);\ -} - - -void test_lea(void) -{ - long eax, ebx, ecx, edx, esi, edi, res; - eax = i2l(0x0001); - ebx = i2l(0x0002); - ecx = i2l(0x0004); - edx = i2l(0x0008); - esi = i2l(0x0010); - edi = i2l(0x0020); - - TEST_LEA("0x4000"); - - TEST_LEA("(%%eax)"); - TEST_LEA("(%%ebx)"); - TEST_LEA("(%%ecx)"); - TEST_LEA("(%%edx)"); - TEST_LEA("(%%esi)"); - TEST_LEA("(%%edi)"); - - TEST_LEA("0x40(%%eax)"); - TEST_LEA("0x40(%%ebx)"); - TEST_LEA("0x40(%%ecx)"); - TEST_LEA("0x40(%%edx)"); - TEST_LEA("0x40(%%esi)"); - TEST_LEA("0x40(%%edi)"); - - TEST_LEA("0x4000(%%eax)"); - TEST_LEA("0x4000(%%ebx)"); - TEST_LEA("0x4000(%%ecx)"); - TEST_LEA("0x4000(%%edx)"); - TEST_LEA("0x4000(%%esi)"); - TEST_LEA("0x4000(%%edi)"); - - TEST_LEA("(%%eax, %%ecx)"); - TEST_LEA("(%%ebx, %%edx)"); - TEST_LEA("(%%ecx, %%ecx)"); - TEST_LEA("(%%edx, %%ecx)"); - TEST_LEA("(%%esi, %%ecx)"); - TEST_LEA("(%%edi, %%ecx)"); - - TEST_LEA("0x40(%%eax, %%ecx)"); - TEST_LEA("0x4000(%%ebx, %%edx)"); - - TEST_LEA("(%%ecx, %%ecx, 2)"); - TEST_LEA("(%%edx, %%ecx, 4)"); - TEST_LEA("(%%esi, %%ecx, 8)"); - - TEST_LEA("(,%%eax, 2)"); - TEST_LEA("(,%%ebx, 4)"); - TEST_LEA("(,%%ecx, 8)"); - - TEST_LEA("0x40(,%%eax, 2)"); - TEST_LEA("0x40(,%%ebx, 4)"); - TEST_LEA("0x40(,%%ecx, 8)"); - - - TEST_LEA("-10(%%ecx, %%ecx, 2)"); - TEST_LEA("-10(%%edx, %%ecx, 4)"); - TEST_LEA("-10(%%esi, %%ecx, 8)"); - - TEST_LEA("0x4000(%%ecx, %%ecx, 2)"); - TEST_LEA("0x4000(%%edx, %%ecx, 4)"); - TEST_LEA("0x4000(%%esi, %%ecx, 8)"); - -#if defined(__x86_64__) - TEST_LEAQ("0x4000"); - TEST_LEAQ("0x4000(%%rip)"); - - TEST_LEAQ("(%%rax)"); - TEST_LEAQ("(%%rbx)"); - TEST_LEAQ("(%%rcx)"); - TEST_LEAQ("(%%rdx)"); - TEST_LEAQ("(%%rsi)"); - TEST_LEAQ("(%%rdi)"); - - TEST_LEAQ("0x40(%%rax)"); - TEST_LEAQ("0x40(%%rbx)"); - TEST_LEAQ("0x40(%%rcx)"); - TEST_LEAQ("0x40(%%rdx)"); - TEST_LEAQ("0x40(%%rsi)"); - TEST_LEAQ("0x40(%%rdi)"); - - TEST_LEAQ("0x4000(%%rax)"); - TEST_LEAQ("0x4000(%%rbx)"); - TEST_LEAQ("0x4000(%%rcx)"); - TEST_LEAQ("0x4000(%%rdx)"); - TEST_LEAQ("0x4000(%%rsi)"); - TEST_LEAQ("0x4000(%%rdi)"); - - TEST_LEAQ("(%%rax, %%rcx)"); - TEST_LEAQ("(%%rbx, %%rdx)"); - TEST_LEAQ("(%%rcx, %%rcx)"); - TEST_LEAQ("(%%rdx, %%rcx)"); - TEST_LEAQ("(%%rsi, %%rcx)"); - TEST_LEAQ("(%%rdi, %%rcx)"); - - TEST_LEAQ("0x40(%%rax, %%rcx)"); - TEST_LEAQ("0x4000(%%rbx, %%rdx)"); - - TEST_LEAQ("(%%rcx, %%rcx, 2)"); - TEST_LEAQ("(%%rdx, %%rcx, 4)"); - TEST_LEAQ("(%%rsi, %%rcx, 8)"); - - TEST_LEAQ("(,%%rax, 2)"); - TEST_LEAQ("(,%%rbx, 4)"); - TEST_LEAQ("(,%%rcx, 8)"); - - TEST_LEAQ("0x40(,%%rax, 2)"); - TEST_LEAQ("0x40(,%%rbx, 4)"); - TEST_LEAQ("0x40(,%%rcx, 8)"); - - - TEST_LEAQ("-10(%%rcx, %%rcx, 2)"); - TEST_LEAQ("-10(%%rdx, %%rcx, 4)"); - TEST_LEAQ("-10(%%rsi, %%rcx, 8)"); - - TEST_LEAQ("0x4000(%%rcx, %%rcx, 2)"); - TEST_LEAQ("0x4000(%%rdx, %%rcx, 4)"); - TEST_LEAQ("0x4000(%%rsi, %%rcx, 8)"); -#else - /* limited 16 bit addressing test */ - TEST_LEA16("0x4000"); - TEST_LEA16("(%%bx)"); - TEST_LEA16("(%%si)"); - TEST_LEA16("(%%di)"); - TEST_LEA16("0x40(%%bx)"); - TEST_LEA16("0x40(%%si)"); - TEST_LEA16("0x40(%%di)"); - TEST_LEA16("0x4000(%%bx)"); - TEST_LEA16("0x4000(%%si)"); - TEST_LEA16("(%%bx,%%si)"); - TEST_LEA16("(%%bx,%%di)"); - TEST_LEA16("0x40(%%bx,%%si)"); - TEST_LEA16("0x40(%%bx,%%di)"); - TEST_LEA16("0x4000(%%bx,%%si)"); - TEST_LEA16("0x4000(%%bx,%%di)"); -#endif -} - -#define TEST_JCC(JCC, v1, v2)\ -{\ - int res;\ - asm("movl $1, %0\n\t"\ - "cmpl %2, %1\n\t"\ - "j" JCC " 1f\n\t"\ - "movl $0, %0\n\t"\ - "1:\n\t"\ - : "=r" (res)\ - : "r" (v1), "r" (v2));\ - printf("%-10s %d\n", "j" JCC, res);\ -\ - asm("movl $0, %0\n\t"\ - "cmpl %2, %1\n\t"\ - "set" JCC " %b0\n\t"\ - : "=r" (res)\ - : "r" (v1), "r" (v2));\ - printf("%-10s %d\n", "set" JCC, res);\ - if (TEST_CMOV) {\ - long val = i2l(1);\ - long res = i2l(0x12345678);\ -X86_64_ONLY(\ - asm("cmpl %2, %1\n\t"\ - "cmov" JCC "q %3, %0\n\t"\ - : "=r" (res)\ - : "r" (v1), "r" (v2), "m" (val), "0" (res));\ - printf("%-10s R=" FMTLX "\n", "cmov" JCC "q", res);)\ - asm("cmpl %2, %1\n\t"\ - "cmov" JCC "l %k3, %k0\n\t"\ - : "=r" (res)\ - : "r" (v1), "r" (v2), "m" (val), "0" (res));\ - printf("%-10s R=" FMTLX "\n", "cmov" JCC "l", res);\ - asm("cmpl %2, %1\n\t"\ - "cmov" JCC "w %w3, %w0\n\t"\ - : "=r" (res)\ - : "r" (v1), "r" (v2), "r" (1), "0" (res));\ - printf("%-10s R=" FMTLX "\n", "cmov" JCC "w", res);\ - } \ -} - -/* various jump tests */ -void test_jcc(void) -{ - TEST_JCC("ne", 1, 1); - TEST_JCC("ne", 1, 0); - - TEST_JCC("e", 1, 1); - TEST_JCC("e", 1, 0); - - TEST_JCC("l", 1, 1); - TEST_JCC("l", 1, 0); - TEST_JCC("l", 1, -1); - - TEST_JCC("le", 1, 1); - TEST_JCC("le", 1, 0); - TEST_JCC("le", 1, -1); - - TEST_JCC("ge", 1, 1); - TEST_JCC("ge", 1, 0); - TEST_JCC("ge", -1, 1); - - TEST_JCC("g", 1, 1); - TEST_JCC("g", 1, 0); - TEST_JCC("g", 1, -1); - - TEST_JCC("b", 1, 1); - TEST_JCC("b", 1, 0); - TEST_JCC("b", 1, -1); - - TEST_JCC("be", 1, 1); - TEST_JCC("be", 1, 0); - TEST_JCC("be", 1, -1); - - TEST_JCC("ae", 1, 1); - TEST_JCC("ae", 1, 0); - TEST_JCC("ae", 1, -1); - - TEST_JCC("a", 1, 1); - TEST_JCC("a", 1, 0); - TEST_JCC("a", 1, -1); - - - TEST_JCC("p", 1, 1); - TEST_JCC("p", 1, 0); - - TEST_JCC("np", 1, 1); - TEST_JCC("np", 1, 0); - - TEST_JCC("o", 0x7fffffff, 0); - TEST_JCC("o", 0x7fffffff, -1); - - TEST_JCC("no", 0x7fffffff, 0); - TEST_JCC("no", 0x7fffffff, -1); - - TEST_JCC("s", 0, 1); - TEST_JCC("s", 0, -1); - TEST_JCC("s", 0, 0); - - TEST_JCC("ns", 0, 1); - TEST_JCC("ns", 0, -1); - TEST_JCC("ns", 0, 0); -} - -#define TEST_LOOP(insn) \ -{\ - for(i = 0; i < sizeof(ecx_vals) / sizeof(long); i++) {\ - ecx = ecx_vals[i];\ - for(zf = 0; zf < 2; zf++) {\ - asm("test %2, %2\n\t"\ - "movl $1, %0\n\t"\ - insn " 1f\n\t" \ - "movl $0, %0\n\t"\ - "1:\n\t"\ - : "=a" (res)\ - : "c" (ecx), "b" (!zf)); \ - printf("%-10s ECX=" FMTLX " ZF=%ld r=%d\n", insn, ecx, zf, res); \ - }\ - }\ -} - -void test_loop(void) -{ - long ecx, zf; - const long ecx_vals[] = { - 0, - 1, - 0x10000, - 0x10001, -#if defined(__x86_64__) - 0x100000000L, - 0x100000001L, -#endif - }; - int i, res; - -#if !defined(__x86_64__) - TEST_LOOP("jcxz"); - TEST_LOOP("loopw"); - TEST_LOOP("loopzw"); - TEST_LOOP("loopnzw"); -#endif - - TEST_LOOP("jecxz"); - TEST_LOOP("loopl"); - TEST_LOOP("loopzl"); - TEST_LOOP("loopnzl"); -} - -#undef CC_MASK -#ifdef TEST_P4_FLAGS -#define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A) -#else -#define CC_MASK (CC_O | CC_C) -#endif - -#define OP mul -#include "test-i386-muldiv.h" - -#define OP imul -#include "test-i386-muldiv.h" - -void test_imulw2(long op0, long op1) -{ - long res, s1, s0, flags; - s0 = op0; - s1 = op1; - res = s0; - flags = 0; - asm volatile ("push %4\n\t" - "popf\n\t" - "imulw %w2, %w0\n\t" - "pushf\n\t" - "pop %1\n\t" - : "=q" (res), "=g" (flags) - : "q" (s1), "0" (res), "1" (flags)); - printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n", - "imulw", s0, s1, res, flags & CC_MASK); -} - -void test_imull2(long op0, long op1) -{ - long res, s1, s0, flags; - s0 = op0; - s1 = op1; - res = s0; - flags = 0; - asm volatile ("push %4\n\t" - "popf\n\t" - "imull %k2, %k0\n\t" - "pushf\n\t" - "pop %1\n\t" - : "=q" (res), "=g" (flags) - : "q" (s1), "0" (res), "1" (flags)); - printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n", - "imull", s0, s1, res, flags & CC_MASK); -} - -#if defined(__x86_64__) -void test_imulq2(long op0, long op1) -{ - long res, s1, s0, flags; - s0 = op0; - s1 = op1; - res = s0; - flags = 0; - asm volatile ("push %4\n\t" - "popf\n\t" - "imulq %2, %0\n\t" - "pushf\n\t" - "pop %1\n\t" - : "=q" (res), "=g" (flags) - : "q" (s1), "0" (res), "1" (flags)); - printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n", - "imulq", s0, s1, res, flags & CC_MASK); -} -#endif - -#define TEST_IMUL_IM(size, rsize, op0, op1)\ -{\ - long res, flags, s1;\ - flags = 0;\ - res = 0;\ - s1 = op1;\ - asm volatile ("push %3\n\t"\ - "popf\n\t"\ - "imul" size " $" #op0 ", %" rsize "2, %" rsize "0\n\t" \ - "pushf\n\t"\ - "pop %1\n\t"\ - : "=r" (res), "=g" (flags)\ - : "r" (s1), "1" (flags), "0" (res));\ - printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",\ - "imul" size " im", (long)op0, (long)op1, res, flags & CC_MASK);\ -} - - -#undef CC_MASK -#define CC_MASK (0) - -#define OP div -#include "test-i386-muldiv.h" - -#define OP idiv -#include "test-i386-muldiv.h" - -void test_mul(void) -{ - test_imulb(0x1234561d, 4); - test_imulb(3, -4); - test_imulb(0x80, 0x80); - test_imulb(0x10, 0x10); - - test_imulw(0, 0x1234001d, 45); - test_imulw(0, 23, -45); - test_imulw(0, 0x8000, 0x8000); - test_imulw(0, 0x100, 0x100); - - test_imull(0, 0x1234001d, 45); - test_imull(0, 23, -45); - test_imull(0, 0x80000000, 0x80000000); - test_imull(0, 0x10000, 0x10000); - - test_mulb(0x1234561d, 4); - test_mulb(3, -4); - test_mulb(0x80, 0x80); - test_mulb(0x10, 0x10); - - test_mulw(0, 0x1234001d, 45); - test_mulw(0, 23, -45); - test_mulw(0, 0x8000, 0x8000); - test_mulw(0, 0x100, 0x100); - - test_mull(0, 0x1234001d, 45); - test_mull(0, 23, -45); - test_mull(0, 0x80000000, 0x80000000); - test_mull(0, 0x10000, 0x10000); - - test_imulw2(0x1234001d, 45); - test_imulw2(23, -45); - test_imulw2(0x8000, 0x8000); - test_imulw2(0x100, 0x100); - - test_imull2(0x1234001d, 45); - test_imull2(23, -45); - test_imull2(0x80000000, 0x80000000); - test_imull2(0x10000, 0x10000); - - TEST_IMUL_IM("w", "w", 45, 0x1234); - TEST_IMUL_IM("w", "w", -45, 23); - TEST_IMUL_IM("w", "w", 0x8000, 0x80000000); - TEST_IMUL_IM("w", "w", 0x7fff, 0x1000); - - TEST_IMUL_IM("l", "k", 45, 0x1234); - TEST_IMUL_IM("l", "k", -45, 23); - TEST_IMUL_IM("l", "k", 0x8000, 0x80000000); - TEST_IMUL_IM("l", "k", 0x7fff, 0x1000); - - test_idivb(0x12341678, 0x127e); - test_idivb(0x43210123, -5); - test_idivb(0x12340004, -1); - - test_idivw(0, 0x12345678, 12347); - test_idivw(0, -23223, -45); - test_idivw(0, 0x12348000, -1); - test_idivw(0x12343, 0x12345678, 0x81238567); - - test_idivl(0, 0x12345678, 12347); - test_idivl(0, -233223, -45); - test_idivl(0, 0x80000000, -1); - test_idivl(0x12343, 0x12345678, 0x81234567); - - test_divb(0x12341678, 0x127e); - test_divb(0x43210123, -5); - test_divb(0x12340004, -1); - - test_divw(0, 0x12345678, 12347); - test_divw(0, -23223, -45); - test_divw(0, 0x12348000, -1); - test_divw(0x12343, 0x12345678, 0x81238567); - - test_divl(0, 0x12345678, 12347); - test_divl(0, -233223, -45); - test_divl(0, 0x80000000, -1); - test_divl(0x12343, 0x12345678, 0x81234567); - -#if defined(__x86_64__) - test_imulq(0, 0x1234001d1234001d, 45); - test_imulq(0, 23, -45); - test_imulq(0, 0x8000000000000000, 0x8000000000000000); - test_imulq(0, 0x100000000, 0x100000000); - - test_mulq(0, 0x1234001d1234001d, 45); - test_mulq(0, 23, -45); - test_mulq(0, 0x8000000000000000, 0x8000000000000000); - test_mulq(0, 0x100000000, 0x100000000); - - test_imulq2(0x1234001d1234001d, 45); - test_imulq2(23, -45); - test_imulq2(0x8000000000000000, 0x8000000000000000); - test_imulq2(0x100000000, 0x100000000); - - TEST_IMUL_IM("q", "", 45, 0x12341234); - TEST_IMUL_IM("q", "", -45, 23); - TEST_IMUL_IM("q", "", 0x8000, 0x8000000000000000); - TEST_IMUL_IM("q", "", 0x7fff, 0x10000000); - - test_idivq(0, 0x12345678abcdef, 12347); - test_idivq(0, -233223, -45); - test_idivq(0, 0x8000000000000000, -1); - test_idivq(0x12343, 0x12345678, 0x81234567); - - test_divq(0, 0x12345678abcdef, 12347); - test_divq(0, -233223, -45); - test_divq(0, 0x8000000000000000, -1); - test_divq(0x12343, 0x12345678, 0x81234567); -#endif -} - -#define TEST_BSX(op, size, op0)\ -{\ - long res, val, resz;\ - val = op0;\ - asm("xor %1, %1\n"\ - "mov $0x12345678, %0\n"\ - #op " %" size "2, %" size "0 ; setz %b1" \ - : "=&r" (res), "=&q" (resz)\ - : "r" (val));\ - printf("%-10s A=" FMTLX " R=" FMTLX " %ld\n", #op, val, res, resz);\ -} - -void test_bsx(void) -{ - TEST_BSX(bsrw, "w", 0); - TEST_BSX(bsrw, "w", 0x12340128); - TEST_BSX(bsfw, "w", 0); - TEST_BSX(bsfw, "w", 0x12340128); - TEST_BSX(bsrl, "k", 0); - TEST_BSX(bsrl, "k", 0x00340128); - TEST_BSX(bsfl, "k", 0); - TEST_BSX(bsfl, "k", 0x00340128); -#if defined(__x86_64__) - TEST_BSX(bsrq, "", 0); - TEST_BSX(bsrq, "", 0x003401281234); - TEST_BSX(bsfq, "", 0); - TEST_BSX(bsfq, "", 0x003401281234); -#endif -} - -/**********************************************/ - -union float64u { - double d; - uint64_t l; -}; - -union float64u q_nan = { .l = 0xFFF8000000000000LL }; -union float64u s_nan = { .l = 0xFFF0000000000000LL }; - -void test_fops(double a, double b) -{ - printf("a=%f b=%f a+b=%f\n", a, b, a + b); - printf("a=%f b=%f a-b=%f\n", a, b, a - b); - printf("a=%f b=%f a*b=%f\n", a, b, a * b); - printf("a=%f b=%f a/b=%f\n", a, b, a / b); - printf("a=%f b=%f fmod(a, b)=%f\n", a, b, fmod(a, b)); - printf("a=%f sqrt(a)=%f\n", a, sqrt(a)); - printf("a=%f sin(a)=%f\n", a, sin(a)); - printf("a=%f cos(a)=%f\n", a, cos(a)); - printf("a=%f tan(a)=%f\n", a, tan(a)); - printf("a=%f log(a)=%f\n", a, log(a)); - printf("a=%f exp(a)=%f\n", a, exp(a)); - printf("a=%f b=%f atan2(a, b)=%f\n", a, b, atan2(a, b)); - /* just to test some op combining */ - printf("a=%f asin(sin(a))=%f\n", a, asin(sin(a))); - printf("a=%f acos(cos(a))=%f\n", a, acos(cos(a))); - printf("a=%f atan(tan(a))=%f\n", a, atan(tan(a))); - -} - -void fpu_clear_exceptions(void) -{ - struct QEMU_PACKED { - uint16_t fpuc; - uint16_t dummy1; - uint16_t fpus; - uint16_t dummy2; - uint16_t fptag; - uint16_t dummy3; - uint32_t ignored[4]; - long double fpregs[8]; - } float_env32; - - asm volatile ("fnstenv %0\n" : "=m" (float_env32)); - float_env32.fpus &= ~0x7f; - asm volatile ("fldenv %0\n" : : "m" (float_env32)); -} - -/* XXX: display exception bits when supported */ -#define FPUS_EMASK 0x0000 -//#define FPUS_EMASK 0x007f - -void test_fcmp(double a, double b) -{ - long eflags, fpus; - - fpu_clear_exceptions(); - asm("fcom %2\n" - "fstsw %%ax\n" - : "=a" (fpus) - : "t" (a), "u" (b)); - printf("fcom(%f %f)=%04lx\n", - a, b, fpus & (0x4500 | FPUS_EMASK)); - fpu_clear_exceptions(); - asm("fucom %2\n" - "fstsw %%ax\n" - : "=a" (fpus) - : "t" (a), "u" (b)); - printf("fucom(%f %f)=%04lx\n", - a, b, fpus & (0x4500 | FPUS_EMASK)); - if (TEST_FCOMI) { - /* test f(u)comi instruction */ - fpu_clear_exceptions(); - asm("fcomi %3, %2\n" - "fstsw %%ax\n" - "pushf\n" - "pop %0\n" - : "=r" (eflags), "=a" (fpus) - : "t" (a), "u" (b)); - printf("fcomi(%f %f)=%04lx %02lx\n", - a, b, fpus & FPUS_EMASK, eflags & (CC_Z | CC_P | CC_C)); - fpu_clear_exceptions(); - asm("fucomi %3, %2\n" - "fstsw %%ax\n" - "pushf\n" - "pop %0\n" - : "=r" (eflags), "=a" (fpus) - : "t" (a), "u" (b)); - printf("fucomi(%f %f)=%04lx %02lx\n", - a, b, fpus & FPUS_EMASK, eflags & (CC_Z | CC_P | CC_C)); - } - fpu_clear_exceptions(); - asm volatile("fxam\n" - "fstsw %%ax\n" - : "=a" (fpus) - : "t" (a)); - printf("fxam(%f)=%04lx\n", a, fpus & 0x4700); - fpu_clear_exceptions(); -} - -void test_fcvt(double a) -{ - float fa; - long double la; - int16_t fpuc; - int i; - int64_t lla; - int ia; - int16_t wa; - double ra; - - fa = a; - la = a; - printf("(float)%f = %f\n", a, fa); - printf("(long double)%f = %Lf\n", a, la); - printf("a=" FMT64X "\n", *(uint64_t *)&a); - printf("la=" FMT64X " %04x\n", *(uint64_t *)&la, - *(unsigned short *)((char *)(&la) + 8)); - - /* test all roundings */ - asm volatile ("fstcw %0" : "=m" (fpuc)); - for(i=0;i<4;i++) { - uint16_t val16; - val16 = (fpuc & ~0x0c00) | (i << 10); - asm volatile ("fldcw %0" : : "m" (val16)); - asm volatile ("fist %0" : "=m" (wa) : "t" (a)); - asm volatile ("fistl %0" : "=m" (ia) : "t" (a)); - asm volatile ("fistpll %0" : "=m" (lla) : "t" (a) : "st"); - asm volatile ("frndint ; fstl %0" : "=m" (ra) : "t" (a)); - asm volatile ("fldcw %0" : : "m" (fpuc)); - printf("(short)a = %d\n", wa); - printf("(int)a = %d\n", ia); - printf("(int64_t)a = " FMT64X "\n", lla); - printf("rint(a) = %f\n", ra); - } -} - -#define TEST(N) \ - asm("fld" #N : "=t" (a)); \ - printf("fld" #N "= %f\n", a); - -void test_fconst(void) -{ - double a; - TEST(1); - TEST(l2t); - TEST(l2e); - TEST(pi); - TEST(lg2); - TEST(ln2); - TEST(z); -} - -void test_fbcd(double a) -{ - unsigned short bcd[5]; - double b; - - asm("fbstp %0" : "=m" (bcd[0]) : "t" (a) : "st"); - asm("fbld %1" : "=t" (b) : "m" (bcd[0])); - printf("a=%f bcd=%04x%04x%04x%04x%04x b=%f\n", - a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b); -} - -#define TEST_ENV(env, save, restore)\ -{\ - memset((env), 0xaa, sizeof(*(env)));\ - for(i=0;i<5;i++)\ - asm volatile ("fldl %0" : : "m" (dtab[i]));\ - asm volatile (save " %0\n" : : "m" (*(env)));\ - asm volatile (restore " %0\n": : "m" (*(env)));\ - for(i=0;i<5;i++)\ - asm volatile ("fstpl %0" : "=m" (rtab[i]));\ - for(i=0;i<5;i++)\ - printf("res[%d]=%f\n", i, rtab[i]);\ - printf("fpuc=%04x fpus=%04x fptag=%04x\n",\ - (env)->fpuc,\ - (env)->fpus & 0xff00,\ - (env)->fptag);\ -} - -void test_fenv(void) -{ - struct __attribute__((__packed__)) { - uint16_t fpuc; - uint16_t dummy1; - uint16_t fpus; - uint16_t dummy2; - uint16_t fptag; - uint16_t dummy3; - uint32_t ignored[4]; - long double fpregs[8]; - } float_env32; - struct __attribute__((__packed__)) { - uint16_t fpuc; - uint16_t fpus; - uint16_t fptag; - uint16_t ignored[4]; - long double fpregs[8]; - } float_env16; - double dtab[8]; - double rtab[8]; - int i; - - for(i=0;i<8;i++) - dtab[i] = i + 1; - - TEST_ENV(&float_env16, "data16 fnstenv", "data16 fldenv"); - TEST_ENV(&float_env16, "data16 fnsave", "data16 frstor"); - TEST_ENV(&float_env32, "fnstenv", "fldenv"); - TEST_ENV(&float_env32, "fnsave", "frstor"); - - /* test for ffree */ - for(i=0;i<5;i++) - asm volatile ("fldl %0" : : "m" (dtab[i])); - asm volatile("ffree %st(2)"); - asm volatile ("fnstenv %0\n" : : "m" (float_env32)); - asm volatile ("fninit"); - printf("fptag=%04x\n", float_env32.fptag); -} - - -#define TEST_FCMOV(a, b, eflags, CC)\ -{\ - double res;\ - asm("push %3\n"\ - "popf\n"\ - "fcmov" CC " %2, %0\n"\ - : "=t" (res)\ - : "0" (a), "u" (b), "g" (eflags));\ - printf("fcmov%s eflags=0x%04lx-> %f\n", \ - CC, (long)eflags, res);\ -} - -void test_fcmov(void) -{ - double a, b; - long eflags, i; - - a = 1.0; - b = 2.0; - for(i = 0; i < 4; i++) { - eflags = 0; - if (i & 1) - eflags |= CC_C; - if (i & 2) - eflags |= CC_Z; - TEST_FCMOV(a, b, eflags, "b"); - TEST_FCMOV(a, b, eflags, "e"); - TEST_FCMOV(a, b, eflags, "be"); - TEST_FCMOV(a, b, eflags, "nb"); - TEST_FCMOV(a, b, eflags, "ne"); - TEST_FCMOV(a, b, eflags, "nbe"); - } - TEST_FCMOV(a, b, 0, "u"); - TEST_FCMOV(a, b, CC_P, "u"); - TEST_FCMOV(a, b, 0, "nu"); - TEST_FCMOV(a, b, CC_P, "nu"); -} - -void test_floats(void) -{ - test_fops(2, 3); - test_fops(1.4, -5); - test_fcmp(2, -1); - test_fcmp(2, 2); - test_fcmp(2, 3); - test_fcmp(2, q_nan.d); - test_fcmp(q_nan.d, -1); - test_fcmp(-1.0/0.0, -1); - test_fcmp(1.0/0.0, -1); - test_fcvt(0.5); - test_fcvt(-0.5); - test_fcvt(1.0/7.0); - test_fcvt(-1.0/9.0); - test_fcvt(32768); - test_fcvt(-1e20); - test_fcvt(-1.0/0.0); - test_fcvt(1.0/0.0); - test_fcvt(q_nan.d); - test_fconst(); - test_fbcd(1234567890123456.0); - test_fbcd(-123451234567890.0); - test_fenv(); - if (TEST_CMOV) { - test_fcmov(); - } -} - -/**********************************************/ -#if !defined(__x86_64__) - -#define TEST_BCD(op, op0, cc_in, cc_mask)\ -{\ - int res, flags;\ - res = op0;\ - flags = cc_in;\ - asm ("push %3\n\t"\ - "popf\n\t"\ - #op "\n\t"\ - "pushf\n\t"\ - "pop %1\n\t"\ - : "=a" (res), "=g" (flags)\ - : "0" (res), "1" (flags));\ - printf("%-10s A=%08x R=%08x CCIN=%04x CC=%04x\n",\ - #op, op0, res, cc_in, flags & cc_mask);\ -} - -void test_bcd(void) -{ - TEST_BCD(daa, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(daa, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - - TEST_BCD(das, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - TEST_BCD(das, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); - - TEST_BCD(aaa, 0x12340205, CC_A, (CC_C | CC_A)); - TEST_BCD(aaa, 0x12340306, CC_A, (CC_C | CC_A)); - TEST_BCD(aaa, 0x1234040a, CC_A, (CC_C | CC_A)); - TEST_BCD(aaa, 0x123405fa, CC_A, (CC_C | CC_A)); - TEST_BCD(aaa, 0x12340205, 0, (CC_C | CC_A)); - TEST_BCD(aaa, 0x12340306, 0, (CC_C | CC_A)); - TEST_BCD(aaa, 0x1234040a, 0, (CC_C | CC_A)); - TEST_BCD(aaa, 0x123405fa, 0, (CC_C | CC_A)); - - TEST_BCD(aas, 0x12340205, CC_A, (CC_C | CC_A)); - TEST_BCD(aas, 0x12340306, CC_A, (CC_C | CC_A)); - TEST_BCD(aas, 0x1234040a, CC_A, (CC_C | CC_A)); - TEST_BCD(aas, 0x123405fa, CC_A, (CC_C | CC_A)); - TEST_BCD(aas, 0x12340205, 0, (CC_C | CC_A)); - TEST_BCD(aas, 0x12340306, 0, (CC_C | CC_A)); - TEST_BCD(aas, 0x1234040a, 0, (CC_C | CC_A)); - TEST_BCD(aas, 0x123405fa, 0, (CC_C | CC_A)); - - TEST_BCD(aam, 0x12340547, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)); - TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)); -} -#endif - -#define TEST_XCHG(op, size, opconst)\ -{\ - long op0, op1;\ - op0 = i2l(0x12345678);\ - op1 = i2l(0xfbca7654);\ - asm(#op " %" size "0, %" size "1" \ - : "=q" (op0), opconst (op1) \ - : "0" (op0));\ - printf("%-10s A=" FMTLX " B=" FMTLX "\n",\ - #op, op0, op1);\ -} - -#define TEST_CMPXCHG(op, size, opconst, eax)\ -{\ - long op0, op1, op2;\ - op0 = i2l(0x12345678);\ - op1 = i2l(0xfbca7654);\ - op2 = i2l(eax);\ - asm(#op " %" size "0, %" size "1" \ - : "=q" (op0), opconst (op1) \ - : "0" (op0), "a" (op2));\ - printf("%-10s EAX=" FMTLX " A=" FMTLX " C=" FMTLX "\n",\ - #op, op2, op0, op1);\ -} - -void test_xchg(void) -{ -#if defined(__x86_64__) - TEST_XCHG(xchgq, "", "+q"); -#endif - TEST_XCHG(xchgl, "k", "+q"); - TEST_XCHG(xchgw, "w", "+q"); - TEST_XCHG(xchgb, "b", "+q"); - -#if defined(__x86_64__) - TEST_XCHG(xchgq, "", "=m"); -#endif - TEST_XCHG(xchgl, "k", "+m"); - TEST_XCHG(xchgw, "w", "+m"); - TEST_XCHG(xchgb, "b", "+m"); - -#if defined(__x86_64__) - TEST_XCHG(xaddq, "", "+q"); -#endif - TEST_XCHG(xaddl, "k", "+q"); - TEST_XCHG(xaddw, "w", "+q"); - TEST_XCHG(xaddb, "b", "+q"); - - { - int res; - res = 0x12345678; - asm("xaddl %1, %0" : "=r" (res) : "0" (res)); - printf("xaddl same res=%08x\n", res); - } - -#if defined(__x86_64__) - TEST_XCHG(xaddq, "", "+m"); -#endif - TEST_XCHG(xaddl, "k", "+m"); - TEST_XCHG(xaddw, "w", "+m"); - TEST_XCHG(xaddb, "b", "+m"); - -#if defined(__x86_64__) - TEST_CMPXCHG(cmpxchgq, "", "+q", 0xfbca7654); -#endif - TEST_CMPXCHG(cmpxchgl, "k", "+q", 0xfbca7654); - TEST_CMPXCHG(cmpxchgw, "w", "+q", 0xfbca7654); - TEST_CMPXCHG(cmpxchgb, "b", "+q", 0xfbca7654); - -#if defined(__x86_64__) - TEST_CMPXCHG(cmpxchgq, "", "+q", 0xfffefdfc); -#endif - TEST_CMPXCHG(cmpxchgl, "k", "+q", 0xfffefdfc); - TEST_CMPXCHG(cmpxchgw, "w", "+q", 0xfffefdfc); - TEST_CMPXCHG(cmpxchgb, "b", "+q", 0xfffefdfc); - -#if defined(__x86_64__) - TEST_CMPXCHG(cmpxchgq, "", "+m", 0xfbca7654); -#endif - TEST_CMPXCHG(cmpxchgl, "k", "+m", 0xfbca7654); - TEST_CMPXCHG(cmpxchgw, "w", "+m", 0xfbca7654); - TEST_CMPXCHG(cmpxchgb, "b", "+m", 0xfbca7654); - -#if defined(__x86_64__) - TEST_CMPXCHG(cmpxchgq, "", "+m", 0xfffefdfc); -#endif - TEST_CMPXCHG(cmpxchgl, "k", "+m", 0xfffefdfc); - TEST_CMPXCHG(cmpxchgw, "w", "+m", 0xfffefdfc); - TEST_CMPXCHG(cmpxchgb, "b", "+m", 0xfffefdfc); - - { - uint64_t op0, op1, op2; - long eax, edx; - long i, eflags; - - for(i = 0; i < 2; i++) { - op0 = 0x123456789abcdLL; - eax = i2l(op0 & 0xffffffff); - edx = i2l(op0 >> 32); - if (i == 0) - op1 = 0xfbca765423456LL; - else - op1 = op0; - op2 = 0x6532432432434LL; - asm("cmpxchg8b %2\n" - "pushf\n" - "pop %3\n" - : "=a" (eax), "=d" (edx), "=m" (op1), "=g" (eflags) - : "0" (eax), "1" (edx), "m" (op1), "b" ((int)op2), "c" ((int)(op2 >> 32))); - printf("cmpxchg8b: eax=" FMTLX " edx=" FMTLX " op1=" FMT64X " CC=%02lx\n", - eax, edx, op1, eflags & CC_Z); - } - } -} - -#ifdef TEST_SEGS -/**********************************************/ -/* segmentation tests */ - -#include <sys/syscall.h> -#include <unistd.h> -#include <asm/ldt.h> -#include <linux/version.h> - -static inline int modify_ldt(int func, void * ptr, unsigned long bytecount) -{ - return syscall(__NR_modify_ldt, func, ptr, bytecount); -} - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 66) -#define modify_ldt_ldt_s user_desc -#endif - -#define MK_SEL(n) (((n) << 3) | 7) - -uint8_t seg_data1[4096]; -uint8_t seg_data2[4096]; - -#define TEST_LR(op, size, seg, mask)\ -{\ - int res, res2;\ - uint16_t mseg = seg;\ - res = 0x12345678;\ - asm (op " %" size "2, %" size "0\n" \ - "movl $0, %1\n"\ - "jnz 1f\n"\ - "movl $1, %1\n"\ - "1:\n"\ - : "=r" (res), "=r" (res2) : "m" (mseg), "0" (res));\ - printf(op ": Z=%d %08x\n", res2, res & ~(mask));\ -} - -#define TEST_ARPL(op, size, op1, op2)\ -{\ - long a, b, c; \ - a = (op1); \ - b = (op2); \ - asm volatile(op " %" size "3, %" size "0\n"\ - "movl $0,%1\n"\ - "jnz 1f\n"\ - "movl $1,%1\n"\ - "1:\n"\ - : "=r" (a), "=r" (c) : "0" (a), "r" (b)); \ - printf(op size " A=" FMTLX " B=" FMTLX " R=" FMTLX " z=%ld\n",\ - (long)(op1), (long)(op2), a, c);\ -} - -/* NOTE: we use Linux modify_ldt syscall */ -void test_segs(void) -{ - struct modify_ldt_ldt_s ldt; - long long ldt_table[3]; - int res, res2; - char tmp; - struct { - uint32_t offset; - uint16_t seg; - } __attribute__((__packed__)) segoff; - - ldt.entry_number = 1; - ldt.base_addr = (unsigned long)&seg_data1; - ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12; - ldt.seg_32bit = 1; - ldt.contents = MODIFY_LDT_CONTENTS_DATA; - ldt.read_exec_only = 0; - ldt.limit_in_pages = 1; - ldt.seg_not_present = 0; - ldt.useable = 1; - modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ - - ldt.entry_number = 2; - ldt.base_addr = (unsigned long)&seg_data2; - ldt.limit = (sizeof(seg_data2) + 0xfff) >> 12; - ldt.seg_32bit = 1; - ldt.contents = MODIFY_LDT_CONTENTS_DATA; - ldt.read_exec_only = 0; - ldt.limit_in_pages = 1; - ldt.seg_not_present = 0; - ldt.useable = 1; - modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ - - modify_ldt(0, &ldt_table, sizeof(ldt_table)); /* read ldt entries */ -#if 0 - { - int i; - for(i=0;i<3;i++) - printf("%d: %016Lx\n", i, ldt_table[i]); - } -#endif - /* do some tests with fs or gs */ - asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1))); - - seg_data1[1] = 0xaa; - seg_data2[1] = 0x55; - - asm volatile ("fs movzbl 0x1, %0" : "=r" (res)); - printf("FS[1] = %02x\n", res); - - asm volatile ("pushl %%gs\n" - "movl %1, %%gs\n" - "gs movzbl 0x1, %0\n" - "popl %%gs\n" - : "=r" (res) - : "r" (MK_SEL(2))); - printf("GS[1] = %02x\n", res); - - /* tests with ds/ss (implicit segment case) */ - tmp = 0xa5; - asm volatile ("pushl %%ebp\n\t" - "pushl %%ds\n\t" - "movl %2, %%ds\n\t" - "movl %3, %%ebp\n\t" - "movzbl 0x1, %0\n\t" - "movzbl (%%ebp), %1\n\t" - "popl %%ds\n\t" - "popl %%ebp\n\t" - : "=r" (res), "=r" (res2) - : "r" (MK_SEL(1)), "r" (&tmp)); - printf("DS[1] = %02x\n", res); - printf("SS[tmp] = %02x\n", res2); - - segoff.seg = MK_SEL(2); - segoff.offset = 0xabcdef12; - asm volatile("lfs %2, %0\n\t" - "movl %%fs, %1\n\t" - : "=r" (res), "=g" (res2) - : "m" (segoff)); - printf("FS:reg = %04x:%08x\n", res2, res); - - TEST_LR("larw", "w", MK_SEL(2), 0x0100); - TEST_LR("larl", "", MK_SEL(2), 0x0100); - TEST_LR("lslw", "w", MK_SEL(2), 0); - TEST_LR("lsll", "", MK_SEL(2), 0); - - TEST_LR("larw", "w", 0xfff8, 0); - TEST_LR("larl", "", 0xfff8, 0); - TEST_LR("lslw", "w", 0xfff8, 0); - TEST_LR("lsll", "", 0xfff8, 0); - - TEST_ARPL("arpl", "w", 0x12345678 | 3, 0x762123c | 1); - TEST_ARPL("arpl", "w", 0x12345678 | 1, 0x762123c | 3); - TEST_ARPL("arpl", "w", 0x12345678 | 1, 0x762123c | 1); -} - -/* 16 bit code test */ -extern char code16_start, code16_end; -extern char code16_func1; -extern char code16_func2; -extern char code16_func3; - -void test_code16(void) -{ - struct modify_ldt_ldt_s ldt; - int res, res2; - - /* build a code segment */ - ldt.entry_number = 1; - ldt.base_addr = (unsigned long)&code16_start; - ldt.limit = &code16_end - &code16_start; - ldt.seg_32bit = 0; - ldt.contents = MODIFY_LDT_CONTENTS_CODE; - ldt.read_exec_only = 0; - ldt.limit_in_pages = 0; - ldt.seg_not_present = 0; - ldt.useable = 1; - modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ - - /* call the first function */ - asm volatile ("lcall %1, %2" - : "=a" (res) - : "i" (MK_SEL(1)), "i" (&code16_func1): "memory", "cc"); - printf("func1() = 0x%08x\n", res); - asm volatile ("lcall %2, %3" - : "=a" (res), "=c" (res2) - : "i" (MK_SEL(1)), "i" (&code16_func2): "memory", "cc"); - printf("func2() = 0x%08x spdec=%d\n", res, res2); - asm volatile ("lcall %1, %2" - : "=a" (res) - : "i" (MK_SEL(1)), "i" (&code16_func3): "memory", "cc"); - printf("func3() = 0x%08x\n", res); -} -#endif - -#if defined(__x86_64__) -asm(".globl func_lret\n" - "func_lret:\n" - "movl $0x87654641, %eax\n" - "lretq\n"); -#else -asm(".globl func_lret\n" - "func_lret:\n" - "movl $0x87654321, %eax\n" - "lret\n" - - ".globl func_iret\n" - "func_iret:\n" - "movl $0xabcd4321, %eax\n" - "iret\n"); -#endif - -extern char func_lret; -extern char func_iret; - -void test_misc(void) -{ - char table[256]; - long res, i; - - for(i=0;i<256;i++) table[i] = 256 - i; - res = 0x12345678; - asm ("xlat" : "=a" (res) : "b" (table), "0" (res)); - printf("xlat: EAX=" FMTLX "\n", res); - -#if defined(__x86_64__) -#if 0 - { - /* XXX: see if Intel Core2 and AMD64 behavior really - differ. Here we implemented the Intel way which is not - compatible yet with QEMU. */ - static struct QEMU_PACKED { - uint64_t offset; - uint16_t seg; - } desc; - long cs_sel; - - asm volatile ("mov %%cs, %0" : "=r" (cs_sel)); - - asm volatile ("push %1\n" - "call func_lret\n" - : "=a" (res) - : "r" (cs_sel) : "memory", "cc"); - printf("func_lret=" FMTLX "\n", res); - - desc.offset = (long)&func_lret; - desc.seg = cs_sel; - - asm volatile ("xor %%rax, %%rax\n" - "rex64 lcall *(%%rcx)\n" - : "=a" (res) - : "c" (&desc) - : "memory", "cc"); - printf("func_lret2=" FMTLX "\n", res); - - asm volatile ("push %2\n" - "mov $ 1f, %%rax\n" - "push %%rax\n" - "rex64 ljmp *(%%rcx)\n" - "1:\n" - : "=a" (res) - : "c" (&desc), "b" (cs_sel) - : "memory", "cc"); - printf("func_lret3=" FMTLX "\n", res); - } -#endif -#else - asm volatile ("push %%cs ; call %1" - : "=a" (res) - : "m" (func_lret): "memory", "cc"); - printf("func_lret=" FMTLX "\n", res); - - asm volatile ("pushf ; push %%cs ; call %1" - : "=a" (res) - : "m" (func_iret): "memory", "cc"); - printf("func_iret=" FMTLX "\n", res); -#endif - -#if defined(__x86_64__) - /* specific popl test */ - asm volatile ("push $12345432 ; push $0x9abcdef ; pop (%%rsp) ; pop %0" - : "=g" (res)); - printf("popl esp=" FMTLX "\n", res); -#else - /* specific popl test */ - asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popl (%%esp) ; popl %0" - : "=g" (res)); - printf("popl esp=" FMTLX "\n", res); - - /* specific popw test */ - asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popw (%%esp) ; addl $2, %%esp ; popl %0" - : "=g" (res)); - printf("popw esp=" FMTLX "\n", res); -#endif -} - -uint8_t str_buffer[4096]; - -#define TEST_STRING1(OP, size, DF, REP)\ -{\ - long esi, edi, eax, ecx, eflags;\ -\ - esi = (long)(str_buffer + sizeof(str_buffer) / 2);\ - edi = (long)(str_buffer + sizeof(str_buffer) / 2) + 16;\ - eax = i2l(0x12345678);\ - ecx = 17;\ -\ - asm volatile ("push $0\n\t"\ - "popf\n\t"\ - DF "\n\t"\ - REP #OP size "\n\t"\ - "cld\n\t"\ - "pushf\n\t"\ - "pop %4\n\t"\ - : "=S" (esi), "=D" (edi), "=a" (eax), "=c" (ecx), "=g" (eflags)\ - : "0" (esi), "1" (edi), "2" (eax), "3" (ecx));\ - printf("%-10s ESI=" FMTLX " EDI=" FMTLX " EAX=" FMTLX " ECX=" FMTLX " EFL=%04x\n",\ - REP #OP size, esi, edi, eax, ecx,\ - (int)(eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)));\ -} - -#define TEST_STRING(OP, REP)\ - TEST_STRING1(OP, "b", "", REP);\ - TEST_STRING1(OP, "w", "", REP);\ - TEST_STRING1(OP, "l", "", REP);\ - X86_64_ONLY(TEST_STRING1(OP, "q", "", REP));\ - TEST_STRING1(OP, "b", "std", REP);\ - TEST_STRING1(OP, "w", "std", REP);\ - TEST_STRING1(OP, "l", "std", REP);\ - X86_64_ONLY(TEST_STRING1(OP, "q", "std", REP)) - -void test_string(void) -{ - int i; - for(i = 0;i < sizeof(str_buffer); i++) - str_buffer[i] = i + 0x56; - TEST_STRING(stos, ""); - TEST_STRING(stos, "rep "); - TEST_STRING(lods, ""); /* to verify stos */ - TEST_STRING(lods, "rep "); - TEST_STRING(movs, ""); - TEST_STRING(movs, "rep "); - TEST_STRING(lods, ""); /* to verify stos */ - - /* XXX: better tests */ - TEST_STRING(scas, ""); - TEST_STRING(scas, "repz "); - TEST_STRING(scas, "repnz "); - TEST_STRING(cmps, ""); - TEST_STRING(cmps, "repz "); - TEST_STRING(cmps, "repnz "); -} - -#ifdef TEST_VM86 -/* VM86 test */ - -static inline void set_bit(uint8_t *a, unsigned int bit) -{ - a[bit / 8] |= (1 << (bit % 8)); -} - -static inline uint8_t *seg_to_linear(unsigned int seg, unsigned int reg) -{ - return (uint8_t *)((seg << 4) + (reg & 0xffff)); -} - -static inline void pushw(struct vm86_regs *r, int val) -{ - r->esp = (r->esp & ~0xffff) | ((r->esp - 2) & 0xffff); - *(uint16_t *)seg_to_linear(r->ss, r->esp) = val; -} - -static inline int vm86(int func, struct vm86plus_struct *v86) -{ - return syscall(__NR_vm86, func, v86); -} - -extern char vm86_code_start; -extern char vm86_code_end; - -#define VM86_CODE_CS 0x100 -#define VM86_CODE_IP 0x100 - -void test_vm86(void) -{ - struct vm86plus_struct ctx; - struct vm86_regs *r; - uint8_t *vm86_mem; - int seg, ret; - - vm86_mem = mmap((void *)0x00000000, 0x110000, - PROT_WRITE | PROT_READ | PROT_EXEC, - MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0); - if (vm86_mem == MAP_FAILED) { - printf("ERROR: could not map vm86 memory"); - return; - } - memset(&ctx, 0, sizeof(ctx)); - - /* init basic registers */ - r = &ctx.regs; - r->eip = VM86_CODE_IP; - r->esp = 0xfffe; - seg = VM86_CODE_CS; - r->cs = seg; - r->ss = seg; - r->ds = seg; - r->es = seg; - r->fs = seg; - r->gs = seg; - r->eflags = VIF_MASK; - - /* move code to proper address. We use the same layout as a .com - dos program. */ - memcpy(vm86_mem + (VM86_CODE_CS << 4) + VM86_CODE_IP, - &vm86_code_start, &vm86_code_end - &vm86_code_start); - - /* mark int 0x21 as being emulated */ - set_bit((uint8_t *)&ctx.int_revectored, 0x21); - - for(;;) { - ret = vm86(VM86_ENTER, &ctx); - switch(VM86_TYPE(ret)) { - case VM86_INTx: - { - int int_num, ah, v; - - int_num = VM86_ARG(ret); - if (int_num != 0x21) - goto unknown_int; - ah = (r->eax >> 8) & 0xff; - switch(ah) { - case 0x00: /* exit */ - goto the_end; - case 0x02: /* write char */ - { - uint8_t c = r->edx; - putchar(c); - } - break; - case 0x09: /* write string */ - { - uint8_t c, *ptr; - ptr = seg_to_linear(r->ds, r->edx); - for(;;) { - c = *ptr++; - if (c == '$') - break; - putchar(c); - } - r->eax = (r->eax & ~0xff) | '$'; - } - break; - case 0xff: /* extension: write eflags number in edx */ - v = (int)r->edx; -#ifndef LINUX_VM86_IOPL_FIX - v &= ~0x3000; -#endif - printf("%08x\n", v); - break; - default: - unknown_int: - printf("unsupported int 0x%02x\n", int_num); - goto the_end; - } - } - break; - case VM86_SIGNAL: - /* a signal came, we just ignore that */ - break; - case VM86_STI: - break; - default: - printf("ERROR: unhandled vm86 return code (0x%x)\n", ret); - goto the_end; - } - } - the_end: - printf("VM86 end\n"); - munmap(vm86_mem, 0x110000); -} -#endif - -/* exception tests */ -#if defined(__i386__) && !defined(REG_EAX) -#define REG_EAX EAX -#define REG_EBX EBX -#define REG_ECX ECX -#define REG_EDX EDX -#define REG_ESI ESI -#define REG_EDI EDI -#define REG_EBP EBP -#define REG_ESP ESP -#define REG_EIP EIP -#define REG_EFL EFL -#define REG_TRAPNO TRAPNO -#define REG_ERR ERR -#endif - -#if defined(__x86_64__) -#define REG_EIP REG_RIP -#endif - -jmp_buf jmp_env; -int v1; -int tab[2]; - -void sig_handler(int sig, siginfo_t *info, void *puc) -{ - struct ucontext *uc = puc; - - printf("si_signo=%d si_errno=%d si_code=%d", - info->si_signo, info->si_errno, info->si_code); - printf(" si_addr=0x%08lx", - (unsigned long)info->si_addr); - printf("\n"); - - printf("trapno=" FMTLX " err=" FMTLX, - (long)uc->uc_mcontext.gregs[REG_TRAPNO], - (long)uc->uc_mcontext.gregs[REG_ERR]); - printf(" EIP=" FMTLX, (long)uc->uc_mcontext.gregs[REG_EIP]); - printf("\n"); - longjmp(jmp_env, 1); -} - -void test_exceptions(void) -{ - struct sigaction act; - volatile int val; - - act.sa_sigaction = sig_handler; - sigemptyset(&act.sa_mask); - act.sa_flags = SA_SIGINFO | SA_NODEFER; - sigaction(SIGFPE, &act, NULL); - sigaction(SIGILL, &act, NULL); - sigaction(SIGSEGV, &act, NULL); - sigaction(SIGBUS, &act, NULL); - sigaction(SIGTRAP, &act, NULL); - - /* test division by zero reporting */ - printf("DIVZ exception:\n"); - if (setjmp(jmp_env) == 0) { - /* now divide by zero */ - v1 = 0; - v1 = 2 / v1; - } - -#if !defined(__x86_64__) - printf("BOUND exception:\n"); - if (setjmp(jmp_env) == 0) { - /* bound exception */ - tab[0] = 1; - tab[1] = 10; - asm volatile ("bound %0, %1" : : "r" (11), "m" (tab[0])); - } -#endif - -#ifdef TEST_SEGS - printf("segment exceptions:\n"); - if (setjmp(jmp_env) == 0) { - /* load an invalid segment */ - asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 1)); - } - if (setjmp(jmp_env) == 0) { - /* null data segment is valid */ - asm volatile ("movl %0, %%fs" : : "r" (3)); - /* null stack segment */ - asm volatile ("movl %0, %%ss" : : "r" (3)); - } - - { - struct modify_ldt_ldt_s ldt; - ldt.entry_number = 1; - ldt.base_addr = (unsigned long)&seg_data1; - ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12; - ldt.seg_32bit = 1; - ldt.contents = MODIFY_LDT_CONTENTS_DATA; - ldt.read_exec_only = 0; - ldt.limit_in_pages = 1; - ldt.seg_not_present = 1; - ldt.useable = 1; - modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ - - if (setjmp(jmp_env) == 0) { - /* segment not present */ - asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1))); - } - } -#endif - - /* test SEGV reporting */ - printf("PF exception:\n"); - if (setjmp(jmp_env) == 0) { - val = 1; - /* we add a nop to test a weird PC retrieval case */ - asm volatile ("nop"); - /* now store in an invalid address */ - *(char *)0x1234 = 1; - } - - /* test SEGV reporting */ - printf("PF exception:\n"); - if (setjmp(jmp_env) == 0) { - val = 1; - /* read from an invalid address */ - v1 = *(char *)0x1234; - } - - /* test illegal instruction reporting */ - printf("UD2 exception:\n"); - if (setjmp(jmp_env) == 0) { - /* now execute an invalid instruction */ - asm volatile("ud2"); - } - printf("lock nop exception:\n"); - if (setjmp(jmp_env) == 0) { - /* now execute an invalid instruction */ - asm volatile(".byte 0xf0, 0x90"); - } - - printf("INT exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("int $0xfd"); - } - if (setjmp(jmp_env) == 0) { - asm volatile ("int $0x01"); - } - if (setjmp(jmp_env) == 0) { - asm volatile (".byte 0xcd, 0x03"); - } - if (setjmp(jmp_env) == 0) { - asm volatile ("int $0x04"); - } - if (setjmp(jmp_env) == 0) { - asm volatile ("int $0x05"); - } - - printf("INT3 exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("int3"); - } - - printf("CLI exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("cli"); - } - - printf("STI exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("cli"); - } - -#if !defined(__x86_64__) - printf("INTO exception:\n"); - if (setjmp(jmp_env) == 0) { - /* overflow exception */ - asm volatile ("addl $1, %0 ; into" : : "r" (0x7fffffff)); - } -#endif - - printf("OUTB exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("outb %%al, %%dx" : : "d" (0x4321), "a" (0)); - } - - printf("INB exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("inb %%dx, %%al" : "=a" (val) : "d" (0x4321)); - } - - printf("REP OUTSB exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("rep outsb" : : "d" (0x4321), "S" (tab), "c" (1)); - } - - printf("REP INSB exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("rep insb" : : "d" (0x4321), "D" (tab), "c" (1)); - } - - printf("HLT exception:\n"); - if (setjmp(jmp_env) == 0) { - asm volatile ("hlt"); - } - - printf("single step exception:\n"); - val = 0; - if (setjmp(jmp_env) == 0) { - asm volatile ("pushf\n" - "orl $0x00100, (%%esp)\n" - "popf\n" - "movl $0xabcd, %0\n" - "movl $0x0, %0\n" : "=m" (val) : : "cc", "memory"); - } - printf("val=0x%x\n", val); -} - -#if !defined(__x86_64__) -/* specific precise single step test */ -void sig_trap_handler(int sig, siginfo_t *info, void *puc) -{ - struct ucontext *uc = puc; - printf("EIP=" FMTLX "\n", (long)uc->uc_mcontext.gregs[REG_EIP]); -} - -const uint8_t sstep_buf1[4] = { 1, 2, 3, 4}; -uint8_t sstep_buf2[4]; - -void test_single_step(void) -{ - struct sigaction act; - volatile int val; - int i; - - val = 0; - act.sa_sigaction = sig_trap_handler; - sigemptyset(&act.sa_mask); - act.sa_flags = SA_SIGINFO; - sigaction(SIGTRAP, &act, NULL); - asm volatile ("pushf\n" - "orl $0x00100, (%%esp)\n" - "popf\n" - "movl $0xabcd, %0\n" - - /* jmp test */ - "movl $3, %%ecx\n" - "1:\n" - "addl $1, %0\n" - "decl %%ecx\n" - "jnz 1b\n" - - /* movsb: the single step should stop at each movsb iteration */ - "movl $sstep_buf1, %%esi\n" - "movl $sstep_buf2, %%edi\n" - "movl $0, %%ecx\n" - "rep movsb\n" - "movl $3, %%ecx\n" - "rep movsb\n" - "movl $1, %%ecx\n" - "rep movsb\n" - - /* cmpsb: the single step should stop at each cmpsb iteration */ - "movl $sstep_buf1, %%esi\n" - "movl $sstep_buf2, %%edi\n" - "movl $0, %%ecx\n" - "rep cmpsb\n" - "movl $4, %%ecx\n" - "rep cmpsb\n" - - /* getpid() syscall: single step should skip one - instruction */ - "movl $20, %%eax\n" - "int $0x80\n" - "movl $0, %%eax\n" - - /* when modifying SS, trace is not done on the next - instruction */ - "movl %%ss, %%ecx\n" - "movl %%ecx, %%ss\n" - "addl $1, %0\n" - "movl $1, %%eax\n" - "movl %%ecx, %%ss\n" - "jmp 1f\n" - "addl $1, %0\n" - "1:\n" - "movl $1, %%eax\n" - "pushl %%ecx\n" - "popl %%ss\n" - "addl $1, %0\n" - "movl $1, %%eax\n" - - "pushf\n" - "andl $~0x00100, (%%esp)\n" - "popf\n" - : "=m" (val) - : - : "cc", "memory", "eax", "ecx", "esi", "edi"); - printf("val=%d\n", val); - for(i = 0; i < 4; i++) - printf("sstep_buf2[%d] = %d\n", i, sstep_buf2[i]); -} - -/* self modifying code test */ -uint8_t code[] = { - 0xb8, 0x1, 0x00, 0x00, 0x00, /* movl $1, %eax */ - 0xc3, /* ret */ -}; - -asm(".section \".data\"\n" - "smc_code2:\n" - "movl 4(%esp), %eax\n" - "movl %eax, smc_patch_addr2 + 1\n" - "nop\n" - "nop\n" - "nop\n" - "nop\n" - "nop\n" - "nop\n" - "nop\n" - "nop\n" - "smc_patch_addr2:\n" - "movl $1, %eax\n" - "ret\n" - ".previous\n" - ); - -typedef int FuncType(void); -extern int smc_code2(int); -void test_self_modifying_code(void) -{ - int i; - printf("self modifying code:\n"); - printf("func1 = 0x%x\n", ((FuncType *)code)()); - for(i = 2; i <= 4; i++) { - code[1] = i; - printf("func%d = 0x%x\n", i, ((FuncType *)code)()); - } - - /* more difficult test : the modified code is just after the - modifying instruction. It is forbidden in Intel specs, but it - is used by old DOS programs */ - for(i = 2; i <= 4; i++) { - printf("smc_code2(%d) = %d\n", i, smc_code2(i)); - } -} -#endif - -long enter_stack[4096]; - -#if defined(__x86_64__) -#define RSP "%%rsp" -#define RBP "%%rbp" -#else -#define RSP "%%esp" -#define RBP "%%ebp" -#endif - -#if !defined(__x86_64__) -/* causes an infinite loop, disable it for now. */ -#define TEST_ENTER(size, stack_type, level) -#else -#define TEST_ENTER(size, stack_type, level)\ -{\ - long esp_save, esp_val, ebp_val, ebp_save, i;\ - stack_type *ptr, *stack_end, *stack_ptr;\ - memset(enter_stack, 0, sizeof(enter_stack));\ - stack_end = stack_ptr = (stack_type *)(enter_stack + 4096);\ - ebp_val = (long)stack_ptr;\ - for(i=1;i<=32;i++)\ - *--stack_ptr = i;\ - esp_val = (long)stack_ptr;\ - asm("mov " RSP ", %[esp_save]\n"\ - "mov " RBP ", %[ebp_save]\n"\ - "mov %[esp_val], " RSP "\n"\ - "mov %[ebp_val], " RBP "\n"\ - "enter" size " $8, $" #level "\n"\ - "mov " RSP ", %[esp_val]\n"\ - "mov " RBP ", %[ebp_val]\n"\ - "mov %[esp_save], " RSP "\n"\ - "mov %[ebp_save], " RBP "\n"\ - : [esp_save] "=r" (esp_save),\ - [ebp_save] "=r" (ebp_save),\ - [esp_val] "=r" (esp_val),\ - [ebp_val] "=r" (ebp_val)\ - : "[esp_val]" (esp_val),\ - "[ebp_val]" (ebp_val));\ - printf("level=%d:\n", level);\ - printf("esp_val=" FMTLX "\n", esp_val - (long)stack_end);\ - printf("ebp_val=" FMTLX "\n", ebp_val - (long)stack_end);\ - for(ptr = (stack_type *)esp_val; ptr < stack_end; ptr++)\ - printf(FMTLX "\n", (long)ptr[0]);\ -} -#endif - -static void test_enter(void) -{ -#if defined(__x86_64__) - TEST_ENTER("q", uint64_t, 0); - TEST_ENTER("q", uint64_t, 1); - TEST_ENTER("q", uint64_t, 2); - TEST_ENTER("q", uint64_t, 31); -#else - TEST_ENTER("l", uint32_t, 0); - TEST_ENTER("l", uint32_t, 1); - TEST_ENTER("l", uint32_t, 2); - TEST_ENTER("l", uint32_t, 31); -#endif - - TEST_ENTER("w", uint16_t, 0); - TEST_ENTER("w", uint16_t, 1); - TEST_ENTER("w", uint16_t, 2); - TEST_ENTER("w", uint16_t, 31); -} - -#ifdef TEST_SSE - -typedef int __m64 __attribute__ ((__mode__ (__V2SI__))); -typedef float __m128 __attribute__ ((__mode__(__V4SF__))); - -typedef union { - double d[2]; - float s[4]; - uint32_t l[4]; - uint64_t q[2]; - __m128 dq; -} XMMReg; - -static uint64_t __attribute__((aligned(16))) test_values[4][2] = { - { 0x456723c698694873, 0xdc515cff944a58ec }, - { 0x1f297ccd58bad7ab, 0x41f21efba9e3e146 }, - { 0x007c62c2085427f8, 0x231be9e8cde7438d }, - { 0x0f76255a085427f8, 0xc233e9e8c4c9439a }, -}; - -#define SSE_OP(op)\ -{\ - asm volatile (#op " %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - b.q[1], b.q[0],\ - r.q[1], r.q[0]);\ -} - -#define SSE_OP2(op)\ -{\ - int i;\ - for(i=0;i<2;i++) {\ - a.q[0] = test_values[2*i][0];\ - a.q[1] = test_values[2*i][1];\ - b.q[0] = test_values[2*i+1][0];\ - b.q[1] = test_values[2*i+1][1];\ - SSE_OP(op);\ - }\ -} - -#define MMX_OP2(op)\ -{\ - int i;\ - for(i=0;i<2;i++) {\ - a.q[0] = test_values[2*i][0];\ - b.q[0] = test_values[2*i+1][0];\ - asm volatile (#op " %2, %0" : "=y" (r.q[0]) : "0" (a.q[0]), "y" (b.q[0]));\ - printf("%-9s: a=" FMT64X " b=" FMT64X " r=" FMT64X "\n",\ - #op,\ - a.q[0],\ - b.q[0],\ - r.q[0]);\ - }\ - SSE_OP2(op);\ -} - -#define SHUF_OP(op, ib)\ -{\ - a.q[0] = test_values[0][0];\ - a.q[1] = test_values[0][1];\ - b.q[0] = test_values[1][0];\ - b.q[1] = test_values[1][1];\ - asm volatile (#op " $" #ib ", %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - b.q[1], b.q[0],\ - ib,\ - r.q[1], r.q[0]);\ -} - -#define PSHUF_OP(op, ib)\ -{\ - int i;\ - for(i=0;i<2;i++) {\ - a.q[0] = test_values[2*i][0];\ - a.q[1] = test_values[2*i][1];\ - asm volatile (#op " $" #ib ", %1, %0" : "=x" (r.dq) : "x" (a.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - ib,\ - r.q[1], r.q[0]);\ - }\ -} - -#define SHIFT_IM(op, ib)\ -{\ - int i;\ - for(i=0;i<2;i++) {\ - a.q[0] = test_values[2*i][0];\ - a.q[1] = test_values[2*i][1];\ - asm volatile (#op " $" #ib ", %0" : "=x" (r.dq) : "0" (a.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - ib,\ - r.q[1], r.q[0]);\ - }\ -} - -#define SHIFT_OP(op, ib)\ -{\ - int i;\ - SHIFT_IM(op, ib);\ - for(i=0;i<2;i++) {\ - a.q[0] = test_values[2*i][0];\ - a.q[1] = test_values[2*i][1];\ - b.q[0] = ib;\ - b.q[1] = 0;\ - asm volatile (#op " %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - b.q[1], b.q[0],\ - r.q[1], r.q[0]);\ - }\ -} - -#define MOVMSK(op)\ -{\ - int i, reg;\ - for(i=0;i<2;i++) {\ - a.q[0] = test_values[2*i][0];\ - a.q[1] = test_values[2*i][1];\ - asm volatile (#op " %1, %0" : "=r" (reg) : "x" (a.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " r=%08x\n",\ - #op,\ - a.q[1], a.q[0],\ - reg);\ - }\ -} - -#define SSE_OPS(a) \ -SSE_OP(a ## ps);\ -SSE_OP(a ## ss); - -#define SSE_OPD(a) \ -SSE_OP(a ## pd);\ -SSE_OP(a ## sd); - -#define SSE_COMI(op, field)\ -{\ - unsigned int eflags;\ - XMMReg a, b;\ - a.field[0] = a1;\ - b.field[0] = b1;\ - asm volatile (#op " %2, %1\n"\ - "pushf\n"\ - "pop %0\n"\ - : "=m" (eflags)\ - : "x" (a.dq), "x" (b.dq));\ - printf("%-9s: a=%f b=%f cc=%04x\n",\ - #op, a1, b1,\ - eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));\ -} - -void test_sse_comi(double a1, double b1) -{ - SSE_COMI(ucomiss, s); - SSE_COMI(ucomisd, d); - SSE_COMI(comiss, s); - SSE_COMI(comisd, d); -} - -#define CVT_OP_XMM(op)\ -{\ - asm volatile (#op " %1, %0" : "=x" (r.dq) : "x" (a.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - r.q[1], r.q[0]);\ -} - -/* Force %xmm0 usage to avoid the case where both register index are 0 - to test instruction decoding more extensively */ -#define CVT_OP_XMM2MMX(op)\ -{\ - asm volatile (#op " %1, %0" : "=y" (r.q[0]) : "x" (a.dq) \ - : "%xmm0"); \ - asm volatile("emms\n"); \ - printf("%-9s: a=" FMT64X "" FMT64X " r=" FMT64X "\n",\ - #op,\ - a.q[1], a.q[0],\ - r.q[0]);\ -} - -#define CVT_OP_MMX2XMM(op)\ -{\ - asm volatile (#op " %1, %0" : "=x" (r.dq) : "y" (a.q[0]));\ - asm volatile("emms\n"); \ - printf("%-9s: a=" FMT64X " r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.q[0],\ - r.q[1], r.q[0]);\ -} - -#define CVT_OP_REG2XMM(op)\ -{\ - asm volatile (#op " %1, %0" : "=x" (r.dq) : "r" (a.l[0]));\ - printf("%-9s: a=%08x r=" FMT64X "" FMT64X "\n",\ - #op,\ - a.l[0],\ - r.q[1], r.q[0]);\ -} - -#define CVT_OP_XMM2REG(op)\ -{\ - asm volatile (#op " %1, %0" : "=r" (r.l[0]) : "x" (a.dq));\ - printf("%-9s: a=" FMT64X "" FMT64X " r=%08x\n",\ - #op,\ - a.q[1], a.q[0],\ - r.l[0]);\ -} - -struct fpxstate { - uint16_t fpuc; - uint16_t fpus; - uint16_t fptag; - uint16_t fop; - uint32_t fpuip; - uint16_t cs_sel; - uint16_t dummy0; - uint32_t fpudp; - uint16_t ds_sel; - uint16_t dummy1; - uint32_t mxcsr; - uint32_t mxcsr_mask; - uint8_t fpregs1[8 * 16]; - uint8_t xmm_regs[8 * 16]; - uint8_t dummy2[224]; -}; - -static struct fpxstate fpx_state __attribute__((aligned(16))); -static struct fpxstate fpx_state2 __attribute__((aligned(16))); - -void test_fxsave(void) -{ - struct fpxstate *fp = &fpx_state; - struct fpxstate *fp2 = &fpx_state2; - int i, nb_xmm; - XMMReg a, b; - a.q[0] = test_values[0][0]; - a.q[1] = test_values[0][1]; - b.q[0] = test_values[1][0]; - b.q[1] = test_values[1][1]; - - asm("movdqa %2, %%xmm0\n" - "movdqa %3, %%xmm7\n" -#if defined(__x86_64__) - "movdqa %2, %%xmm15\n" -#endif - " fld1\n" - " fldpi\n" - " fldln2\n" - " fxsave %0\n" - " fxrstor %0\n" - " fxsave %1\n" - " fninit\n" - : "=m" (*(uint32_t *)fp2), "=m" (*(uint32_t *)fp) - : "m" (a), "m" (b)); - printf("fpuc=%04x\n", fp->fpuc); - printf("fpus=%04x\n", fp->fpus); - printf("fptag=%04x\n", fp->fptag); - for(i = 0; i < 3; i++) { - printf("ST%d: " FMT64X " %04x\n", - i, - *(uint64_t *)&fp->fpregs1[i * 16], - *(uint16_t *)&fp->fpregs1[i * 16 + 8]); - } - printf("mxcsr=%08x\n", fp->mxcsr & 0x1f80); -#if defined(__x86_64__) - nb_xmm = 16; -#else - nb_xmm = 8; -#endif - for(i = 0; i < nb_xmm; i++) { - printf("xmm%d: " FMT64X "" FMT64X "\n", - i, - *(uint64_t *)&fp->xmm_regs[i * 16], - *(uint64_t *)&fp->xmm_regs[i * 16 + 8]); - } -} - -void test_sse(void) -{ - XMMReg r, a, b; - int i; - - MMX_OP2(punpcklbw); - MMX_OP2(punpcklwd); - MMX_OP2(punpckldq); - MMX_OP2(packsswb); - MMX_OP2(pcmpgtb); - MMX_OP2(pcmpgtw); - MMX_OP2(pcmpgtd); - MMX_OP2(packuswb); - MMX_OP2(punpckhbw); - MMX_OP2(punpckhwd); - MMX_OP2(punpckhdq); - MMX_OP2(packssdw); - MMX_OP2(pcmpeqb); - MMX_OP2(pcmpeqw); - MMX_OP2(pcmpeqd); - - MMX_OP2(paddq); - MMX_OP2(pmullw); - MMX_OP2(psubusb); - MMX_OP2(psubusw); - MMX_OP2(pminub); - MMX_OP2(pand); - MMX_OP2(paddusb); - MMX_OP2(paddusw); - MMX_OP2(pmaxub); - MMX_OP2(pandn); - - MMX_OP2(pmulhuw); - MMX_OP2(pmulhw); - - MMX_OP2(psubsb); - MMX_OP2(psubsw); - MMX_OP2(pminsw); - MMX_OP2(por); - MMX_OP2(paddsb); - MMX_OP2(paddsw); - MMX_OP2(pmaxsw); - MMX_OP2(pxor); - MMX_OP2(pmuludq); - MMX_OP2(pmaddwd); - MMX_OP2(psadbw); - MMX_OP2(psubb); - MMX_OP2(psubw); - MMX_OP2(psubd); - MMX_OP2(psubq); - MMX_OP2(paddb); - MMX_OP2(paddw); - MMX_OP2(paddd); - - MMX_OP2(pavgb); - MMX_OP2(pavgw); - - asm volatile ("pinsrw $1, %1, %0" : "=y" (r.q[0]) : "r" (0x12345678)); - printf("%-9s: r=" FMT64X "\n", "pinsrw", r.q[0]); - - asm volatile ("pinsrw $5, %1, %0" : "=x" (r.dq) : "r" (0x12345678)); - printf("%-9s: r=" FMT64X "" FMT64X "\n", "pinsrw", r.q[1], r.q[0]); - - a.q[0] = test_values[0][0]; - a.q[1] = test_values[0][1]; - asm volatile ("pextrw $1, %1, %0" : "=r" (r.l[0]) : "y" (a.q[0])); - printf("%-9s: r=%08x\n", "pextrw", r.l[0]); - - asm volatile ("pextrw $5, %1, %0" : "=r" (r.l[0]) : "x" (a.dq)); - printf("%-9s: r=%08x\n", "pextrw", r.l[0]); - - asm volatile ("pmovmskb %1, %0" : "=r" (r.l[0]) : "y" (a.q[0])); - printf("%-9s: r=%08x\n", "pmovmskb", r.l[0]); - - asm volatile ("pmovmskb %1, %0" : "=r" (r.l[0]) : "x" (a.dq)); - printf("%-9s: r=%08x\n", "pmovmskb", r.l[0]); - - { - r.q[0] = -1; - r.q[1] = -1; - - a.q[0] = test_values[0][0]; - a.q[1] = test_values[0][1]; - b.q[0] = test_values[1][0]; - b.q[1] = test_values[1][1]; - asm volatile("maskmovq %1, %0" : - : "y" (a.q[0]), "y" (b.q[0]), "D" (&r) - : "memory"); - printf("%-9s: r=" FMT64X " a=" FMT64X " b=" FMT64X "\n", - "maskmov", - r.q[0], - a.q[0], - b.q[0]); - asm volatile("maskmovdqu %1, %0" : - : "x" (a.dq), "x" (b.dq), "D" (&r) - : "memory"); - printf("%-9s: r=" FMT64X "" FMT64X " a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X "\n", - "maskmov", - r.q[1], r.q[0], - a.q[1], a.q[0], - b.q[1], b.q[0]); - } - - asm volatile ("emms"); - - SSE_OP2(punpcklqdq); - SSE_OP2(punpckhqdq); - SSE_OP2(andps); - SSE_OP2(andpd); - SSE_OP2(andnps); - SSE_OP2(andnpd); - SSE_OP2(orps); - SSE_OP2(orpd); - SSE_OP2(xorps); - SSE_OP2(xorpd); - - SSE_OP2(unpcklps); - SSE_OP2(unpcklpd); - SSE_OP2(unpckhps); - SSE_OP2(unpckhpd); - - SHUF_OP(shufps, 0x78); - SHUF_OP(shufpd, 0x02); - - PSHUF_OP(pshufd, 0x78); - PSHUF_OP(pshuflw, 0x78); - PSHUF_OP(pshufhw, 0x78); - - SHIFT_OP(psrlw, 7); - SHIFT_OP(psrlw, 16); - SHIFT_OP(psraw, 7); - SHIFT_OP(psraw, 16); - SHIFT_OP(psllw, 7); - SHIFT_OP(psllw, 16); - - SHIFT_OP(psrld, 7); - SHIFT_OP(psrld, 32); - SHIFT_OP(psrad, 7); - SHIFT_OP(psrad, 32); - SHIFT_OP(pslld, 7); - SHIFT_OP(pslld, 32); - - SHIFT_OP(psrlq, 7); - SHIFT_OP(psrlq, 32); - SHIFT_OP(psllq, 7); - SHIFT_OP(psllq, 32); - - SHIFT_IM(psrldq, 16); - SHIFT_IM(psrldq, 7); - SHIFT_IM(pslldq, 16); - SHIFT_IM(pslldq, 7); - - MOVMSK(movmskps); - MOVMSK(movmskpd); - - /* FPU specific ops */ - - { - uint32_t mxcsr; - asm volatile("stmxcsr %0" : "=m" (mxcsr)); - printf("mxcsr=%08x\n", mxcsr & 0x1f80); - asm volatile("ldmxcsr %0" : : "m" (mxcsr)); - } - - test_sse_comi(2, -1); - test_sse_comi(2, 2); - test_sse_comi(2, 3); - test_sse_comi(2, q_nan.d); - test_sse_comi(q_nan.d, -1); - - for(i = 0; i < 2; i++) { - a.s[0] = 2.7; - a.s[1] = 3.4; - a.s[2] = 4; - a.s[3] = -6.3; - b.s[0] = 45.7; - b.s[1] = 353.4; - b.s[2] = 4; - b.s[3] = 56.3; - if (i == 1) { - a.s[0] = q_nan.d; - b.s[3] = q_nan.d; - } - - SSE_OPS(add); - SSE_OPS(mul); - SSE_OPS(sub); - SSE_OPS(min); - SSE_OPS(div); - SSE_OPS(max); - SSE_OPS(sqrt); - SSE_OPS(cmpeq); - SSE_OPS(cmplt); - SSE_OPS(cmple); - SSE_OPS(cmpunord); - SSE_OPS(cmpneq); - SSE_OPS(cmpnlt); - SSE_OPS(cmpnle); - SSE_OPS(cmpord); - - - a.d[0] = 2.7; - a.d[1] = -3.4; - b.d[0] = 45.7; - b.d[1] = -53.4; - if (i == 1) { - a.d[0] = q_nan.d; - b.d[1] = q_nan.d; - } - SSE_OPD(add); - SSE_OPD(mul); - SSE_OPD(sub); - SSE_OPD(min); - SSE_OPD(div); - SSE_OPD(max); - SSE_OPD(sqrt); - SSE_OPD(cmpeq); - SSE_OPD(cmplt); - SSE_OPD(cmple); - SSE_OPD(cmpunord); - SSE_OPD(cmpneq); - SSE_OPD(cmpnlt); - SSE_OPD(cmpnle); - SSE_OPD(cmpord); - } - - /* float to float/int */ - a.s[0] = 2.7; - a.s[1] = 3.4; - a.s[2] = 4; - a.s[3] = -6.3; - CVT_OP_XMM(cvtps2pd); - CVT_OP_XMM(cvtss2sd); - CVT_OP_XMM2MMX(cvtps2pi); - CVT_OP_XMM2MMX(cvttps2pi); - CVT_OP_XMM2REG(cvtss2si); - CVT_OP_XMM2REG(cvttss2si); - CVT_OP_XMM(cvtps2dq); - CVT_OP_XMM(cvttps2dq); - - a.d[0] = 2.6; - a.d[1] = -3.4; - CVT_OP_XMM(cvtpd2ps); - CVT_OP_XMM(cvtsd2ss); - CVT_OP_XMM2MMX(cvtpd2pi); - CVT_OP_XMM2MMX(cvttpd2pi); - CVT_OP_XMM2REG(cvtsd2si); - CVT_OP_XMM2REG(cvttsd2si); - CVT_OP_XMM(cvtpd2dq); - CVT_OP_XMM(cvttpd2dq); - - /* sse/mmx moves */ - CVT_OP_XMM2MMX(movdq2q); - CVT_OP_MMX2XMM(movq2dq); - - /* int to float */ - a.l[0] = -6; - a.l[1] = 2; - a.l[2] = 100; - a.l[3] = -60000; - CVT_OP_MMX2XMM(cvtpi2ps); - CVT_OP_MMX2XMM(cvtpi2pd); - CVT_OP_REG2XMM(cvtsi2ss); - CVT_OP_REG2XMM(cvtsi2sd); - CVT_OP_XMM(cvtdq2ps); - CVT_OP_XMM(cvtdq2pd); - - /* XXX: test PNI insns */ -#if 0 - SSE_OP2(movshdup); -#endif - asm volatile ("emms"); -} - -#endif - -#define TEST_CONV_RAX(op)\ -{\ - unsigned long a, r;\ - a = i2l(0x8234a6f8);\ - r = a;\ - asm volatile(#op : "=a" (r) : "0" (r));\ - printf("%-10s A=" FMTLX " R=" FMTLX "\n", #op, a, r);\ -} - -#define TEST_CONV_RAX_RDX(op)\ -{\ - unsigned long a, d, r, rh; \ - a = i2l(0x8234a6f8);\ - d = i2l(0x8345a1f2);\ - r = a;\ - rh = d;\ - asm volatile(#op : "=a" (r), "=d" (rh) : "0" (r), "1" (rh)); \ - printf("%-10s A=" FMTLX " R=" FMTLX ":" FMTLX "\n", #op, a, r, rh); \ -} - -void test_conv(void) -{ - TEST_CONV_RAX(cbw); - TEST_CONV_RAX(cwde); -#if defined(__x86_64__) - TEST_CONV_RAX(cdqe); -#endif - - TEST_CONV_RAX_RDX(cwd); - TEST_CONV_RAX_RDX(cdq); -#if defined(__x86_64__) - TEST_CONV_RAX_RDX(cqo); -#endif - - { - unsigned long a, r; - a = i2l(0x12345678); - asm volatile("bswapl %k0" : "=r" (r) : "0" (a)); - printf("%-10s: A=" FMTLX " R=" FMTLX "\n", "bswapl", a, r); - } -#if defined(__x86_64__) - { - unsigned long a, r; - a = i2l(0x12345678); - asm volatile("bswapq %0" : "=r" (r) : "0" (a)); - printf("%-10s: A=" FMTLX " R=" FMTLX "\n", "bswapq", a, r); - } -#endif -} - -extern void *__start_initcall; -extern void *__stop_initcall; - - -int main(int argc, char **argv) -{ - void **ptr; - void (*func)(void); - - ptr = &__start_initcall; - while (ptr != &__stop_initcall) { - func = *ptr++; - func(); - } - test_bsx(); - test_mul(); - test_jcc(); - test_loop(); - test_floats(); -#if !defined(__x86_64__) - test_bcd(); -#endif - test_xchg(); - test_string(); - test_misc(); - test_lea(); -#ifdef TEST_SEGS - test_segs(); - test_code16(); -#endif -#ifdef TEST_VM86 - test_vm86(); -#endif -#if !defined(__x86_64__) - test_exceptions(); - test_self_modifying_code(); - test_single_step(); -#endif - test_enter(); - test_conv(); -#ifdef TEST_SSE - test_sse(); - test_fxsave(); -#endif - return 0; -} |