LXR qemu/tests/tcg/mips/user/ase/dsp/test_dsp_r1

   1#include<stdio.h>
   2#include<assert.h>
   3
   4int main()
   5{
   6    int rd, rs, rt;
   7    int result;
   8
   9    rs     = 0xFFFFFFFF;
  10    rt     = 0x000000FF;
  11    result = 0xFFFFFF00;
  12    __asm
  13        ("modsub %0, %1, %2\n\t"
  14         : "=r"(rd)
  15         : "r"(rs), "r"(rt)
  16        );
  17    assert(result == rd);
  18
  19    rs     = 0x00000000;
  20    rt     = 0x00CD1FFF;
  21    result = 0x0000CD1F;
  22    __asm
  23        ("modsub %0, %1, %2\n\t"
  24         : "=r"(rd)
  25         : "r"(rs), "r"(rt)
  26        );
  27    assert(result == rd);
  28
  29    return 0;
  30}
  31