LXR qemu/tests/tcg/mips/user/ase/dsp/test_dsp_r2_subu

   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 = 0x87654321;
  10    rt = 0x11111111;
  11    result    = 0x76543210;
  12    resultdsp = 0x00;
  13
  14    __asm
  15        ("subu.ph %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    rs = 0x87654321;
  25    rt = 0x12345678;
  26    result    = 0x7531ECA9;
  27    resultdsp = 0x01;
  28
  29    __asm
  30        ("subu.ph %0, %2, %3\n\t"
  31         "rddsp %1\n\t"
  32         : "=r"(rd), "=r"(dsp)
  33         : "r"(rs), "r"(rt)
  34        );
  35    dsp = (dsp >> 20) & 0x01;
  36    assert(dsp == resultdsp);
  37    assert(rd  == result);
  38
  39    return 0;
  40}
  41