1 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <assert.h> 5 6 #define JZ_NEXT ".byte 0x74,0x00" /* jz the-next-insn */ 7 8 int main ( void ) 9 { 10 char* junk = malloc(48); 11 assert(junk); 12 13 14 /* --- INTEGER --- */ 15 16 printf("\nComplain int64\n"); 17 __asm__ __volatile__( 18 "movq 0(%0), %%rax\n\t" 19 "movq 8(%0), %%r8\n\t" 20 "xorq %%r8, %%rax\n\t" 21 JZ_NEXT 22 : : "r"(junk) : "r8", "rax", "cc" 23 ); 24 25 printf("\nNo complain int64\n"); 26 __asm__ __volatile__( 27 "movq 0(%0), %%rax\n\t" 28 "movq 8(%0), %%r8\n\t" 29 "xorq %%rax, %%rax\n\t" 30 JZ_NEXT 31 : : "r"(junk) : "r8", "rax", "cc" 32 ); 33 34 35 /* --- MMX --- */ 36 37 printf("\nComplain mmx\n"); 38 __asm__ __volatile__( 39 "emms\n\t" 40 "movq 0(%0), %%mm0\n\t" 41 "movq 8(%0), %%mm7\n\t" 42 "pxor %%mm7, %%mm0\n\t" 43 "movq %%mm0, 16(%0)\n\t" 44 "cmpq $0,16(%0)\n\t" 45 JZ_NEXT 46 : : "r"(junk) : "mm7", "mm0", "cc", "memory" 47 ); 48 49 printf("\nNo complain mmx\n"); 50 __asm__ __volatile__( 51 "emms\n\t" 52 "movq 0(%0), %%mm0\n\t" 53 "movq 8(%0), %%mm7\n\t" 54 "pxor %%mm0, %%mm0\n\t" 55 "movq %%mm0, 16(%0)\n\t" 56 "cmpq $0,16(%0)\n\t" 57 JZ_NEXT 58 : : "r"(junk) : "mm7", "mm0", "cc", "memory" 59 ); 60 61 62 /* --- SSE1 --- */ 63 64 printf("\nComplain sse xorps\n"); 65 __asm__ __volatile__( 66 "movups 0(%0), %%xmm0\n\t" 67 "movups 16(%0), %%xmm8\n\t" 68 "xorps %%xmm8, %%xmm0\n\t" 69 "movups %%xmm0, 32(%0)\n\t" 70 "movq 32(%0), %%rax\n\t" 71 "addq 40(%0), %%rax\n\t" 72 JZ_NEXT 73 : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory" 74 ); 75 76 printf("\nNo complain sse xorps\n"); 77 __asm__ __volatile__( 78 "movups 0(%0), %%xmm0\n\t" 79 "movups 16(%0), %%xmm8\n\t" 80 "xorps %%xmm0, %%xmm0\n\t" 81 "movups %%xmm0, 32(%0)\n\t" 82 "movq 32(%0), %%rax\n\t" 83 "addq 40(%0), %%rax\n\t" 84 JZ_NEXT 85 : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory" 86 ); 87 88 89 /* --- SSE2 --- */ 90 91 printf("\nComplain sse2 pxor\n"); 92 __asm__ __volatile__( 93 "movups 0(%0), %%xmm0\n\t" 94 "movups 16(%0), %%xmm8\n\t" 95 "pxor %%xmm8, %%xmm0\n\t" 96 "movups %%xmm0, 32(%0)\n\t" 97 "movq 32(%0), %%rax\n\t" 98 "addq 40(%0), %%rax\n\t" 99 JZ_NEXT 100 : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory" 101 ); 102 103 printf("\nNo complain sse2 pxor\n"); 104 __asm__ __volatile__( 105 "movups 0(%0), %%xmm0\n\t" 106 "movups 16(%0), %%xmm8\n\t" 107 "pxor %%xmm0, %%xmm0\n\t" 108 "movups %%xmm0, 32(%0)\n\t" 109 "movq 32(%0), %%rax\n\t" 110 "addq 40(%0), %%rax\n\t" 111 JZ_NEXT 112 : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory" 113 ); 114 115 116 printf("\nComplain sse2 xorpd\n"); 117 __asm__ __volatile__( 118 "movups 0(%0), %%xmm0\n\t" 119 "movups 16(%0), %%xmm8\n\t" 120 "xorpd %%xmm8, %%xmm0\n\t" 121 "movups %%xmm0, 32(%0)\n\t" 122 "movq 32(%0), %%rax\n\t" 123 "addq 40(%0), %%rax\n\t" 124 JZ_NEXT 125 : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory" 126 ); 127 128 printf("\nNo complain sse2 xorpd\n"); 129 __asm__ __volatile__( 130 "movups 0(%0), %%xmm0\n\t" 131 "movups 16(%0), %%xmm8\n\t" 132 "xorpd %%xmm0, %%xmm0\n\t" 133 "movups %%xmm0, 32(%0)\n\t" 134 "movq 32(%0), %%rax\n\t" 135 "addq 40(%0), %%rax\n\t" 136 JZ_NEXT 137 : : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory" 138 ); 139 140 141 free(junk); 142 return 0; 143 } 144
