qemu/tests/tcg/mips/mips32-dsp/subu_qb.c
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   1#include<stdio.h>
   2#include<assert.h>
   3
   4int main()
   5{
   6    int rd, rs, rt, dsp;
   7    int result, resultdsp;
   8
   9    rs = 0x12345678;
  10    rt = 0x87654321;
  11    result    = 0x8BCF1357;
  12    resultdsp = 0x01;
  13
  14    __asm
  15        ("subu.qb %0, %2, %3\n\t"
  16         "rddsp   %1\n\t"
  17         : "=r"(rd), "=r"(dsp)
  18         : "r"(rs), "r"(rt)
  19        );
  20    dsp = (dsp >> 20) & 0x01;
  21    assert(dsp == resultdsp);
  22    assert(rd  == result);
  23
  24    return 0;
  25}
  26