tests/tcg/mips/mips64-dsp/subu_qb.c

   1 #include "io.h"
   2
   3 int main(void)
   4 {
   5     long long rd, rs, rt, dsp;
   6     long long result, resultdsp;
   7
   8     rs = 0x12345678;
   9     rt = 0x87654321;
  10     result    = 0xFFFFFFFF8BCF1357;
  11     resultdsp = 0x01;
  12
  13     __asm
  14         ("subu.qb %0, %2, %3\n\t"
  15          "rddsp   %1\n\t"
  16          : "=r"(rd), "=r"(dsp)
  17          : "r"(rs), "r"(rt)
  18         );
  19     dsp = (dsp >> 20) & 0x01;
  20     if ((dsp != resultdsp) || (rd  != result)) {
  21         printf("subu.qb wrong\n");
  22
  23         return -1;
  24     }
  25
  26     return 0;
  27 }