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Commit | Line | Data |
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59e0fbf8 AZ |
1 | /* See if various MMX/SSE SSSE3 instructions give expected results */ |
2 | #include <stdio.h> | |
3 | #include <string.h> | |
4 | ||
5 | int main(int argc, char *argv[]) { | |
6 | char hello[16]; | |
7 | const char ehlo[8] = "EHLO "; | |
8 | uint64_t mask = 0x8080800302020001; | |
9 | ||
10 | uint64_t a = 0x0000000000090007; | |
11 | uint64_t b = 0x0000000000000000; | |
12 | ||
13 | const char c[16] = "LLOaaaaaaaaaaaaa"; | |
14 | const char d[16] = "aaaaaaaaaaaaaaHE"; | |
15 | ||
16 | /* pshufb mm1/xmm1, mm2/xmm2 */ | |
17 | asm volatile ("movq (%0), %%mm0" : : "r" (ehlo) : "mm0", "mm1"); | |
18 | asm volatile ("movq %0, %%mm1" : : "m" (mask)); | |
19 | asm volatile ("pshufb %mm1, %mm0"); | |
20 | asm volatile ("movq %%mm0, %0" : "=m" (hello)); | |
21 | printf("%s\n", hello); | |
22 | ||
23 | /* pshufb mm1/xmm1, m64/m128 */ | |
24 | asm volatile ("movq (%0), %%mm0" : : "r" (ehlo) : "mm0"); | |
25 | asm volatile ("pshufb %0, %%mm0" : : "m" (mask)); | |
26 | asm volatile ("movq %%mm0, %0" : "=m" (hello)); | |
27 | printf("%s\n", hello); | |
28 | ||
29 | /* psubsw mm1/xmm1, m64/m128 */ | |
30 | asm volatile ("movq %0, %%mm0" : : "r" (a) : "mm0"); | |
31 | asm volatile ("phsubsw %0, %%mm0" : : "m" (b)); | |
32 | asm volatile ("movq %%mm0, %0" : "=m" (a)); | |
33 | printf("%i - %i = %i\n", 9, 7, -(int16_t) a); | |
34 | ||
35 | /* palignr mm1/xmm1, m64/m128, imm8 */ | |
36 | asm volatile ("movdqa (%0), %%xmm0" : : "r" (c) : "xmm0"); | |
37 | asm volatile ("palignr $14, (%0), %%xmm0" : : "r" (d)); | |
38 | asm volatile ("movdqa %%xmm0, (%0)" : : "r" (hello)); | |
39 | printf("%5.5s\n", hello); | |
40 | ||
41 | return 0; | |
42 | } |