qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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mie3-sel.c (919B)

      1 #include <stdint.h>
      2 
      3 
      4 #define Fi3(S, ASM) uint64_t S(uint64_t a, uint64_t b, uint64_t c) \
      5 {                       \
      6 asm volatile (          \
      7     "ltgr %[c], %[c]\n" \
      8     ASM                 \
      9     : [c] "+r" (c)      \
     10     : [a]  "r" (a)      \
     11     , [b]  "r" (b)      \
     12 );                      \
     13     return c;           \
     14 }
     15 
     16 Fi3 (_selre,     ".insn rrf, 0xB9F00000, %[c], %[b], %[a], 8\n")
     17 Fi3 (_selgrz,    ".insn rrf, 0xB9E30000, %[c], %[b], %[a], 8\n")
     18 Fi3 (_selfhrnz,  ".insn rrf, 0xB9C00000, %[c], %[b], %[a], 7\n")
     19 
     20 
     21 int main(int argc, char *argv[])
     22 {
     23     uint64_t a = ~0, b = ~0, c = ~0;
     24 
     25     a =    _selre(0x066600000066ull, 0x066600000006ull, a);
     26     b =   _selgrz(0xF00D00000005ull, 0xF00D00000055ull, b);
     27     c = _selfhrnz(0x043200000044ull, 0x065400000004ull, c);
     28 
     29     return (int) (
     30         (0xFFFFFFFF00000066ull != a) ||
     31         (0x0000F00D00000005ull != b) ||
     32         (0x00000654FFFFFFFFull != c));
     33 }