mirror of
https://github.com/ptitSeb/box64.git
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29 lines
545 B
C
29 lines
545 B
C
#include <stdio.h>
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#include <string.h>
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#include <stddef.h>
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#include <stdint.h>
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// Build with `gcc -march=core2 -O2 test23.c -o test23`
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uint64_t pshufb(uint64_t Gm, uint64_t Em) {
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uint64_t Res;
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asm(
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"movq %[_Gm], %%mm0\n"
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"movq %[_Em], %%mm1\n"
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"pshufb %%mm1, %%mm0\n"
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"movq %%mm0, %[_Res]\n"
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: [_Res] "+r"(Res)
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: [_Gm] "r"(Gm)
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, [_Em] "r"(Em)
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);
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return Res;
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}
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int main() {
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uint64_t Gm = 0x12345678abcdef00;
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uint64_t Em = 0x8182888971727879;
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uint64_t Res = pshufb(Gm, Em);
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printf("Res = 0x%lx\n", Res);
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//assert(Res == 0xefcd00ef);
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return 0;
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}
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