LXR qemu/tests/tcg/mips/mips32-dsp/addwc.c

   1#include<stdio.h>
   2#include<assert.h>
   3
   4int main()
   5{
   6    int rd, rs, rt;
   7    int dspi, dspo;
   8    int result;
   9
  10    rs     = 0x10FF01FF;
  11    rt     = 0x10010001;
  12    dspi   = 0x00002000;
  13    result = 0x21000201;
  14    __asm
  15        ("wrdsp %3\n"
  16         "addwc %0, %1, %2\n\t"
  17         : "=r"(rd)
  18         : "r"(rs), "r"(rt), "r"(dspi)
  19        );
  20    assert(rd == result);
  21
  22    rs     = 0xFFFF1111;
  23    rt     = 0x00020001;
  24    dspi   = 0x00;
  25    result = 0x00011112;
  26    __asm
  27        ("wrdsp %3\n"
  28         "addwc %0, %1, %2\n\t"
  29         : "=r"(rd)
  30         : "r"(rs), "r"(rt), "r"(dspi)
  31        );
  32    assert(rd == result);
  33
  34    rs     = 0x8FFF1111;
  35    rt     = 0x80020001;
  36    dspi   = 0x00;
  37    result = 0x10011112;
  38    __asm
  39        ("wrdsp %4\n"
  40         "addwc %0, %2, %3\n\t"
  41         "rddsp %1\n\t"
  42         : "=r"(rd), "=r"(dspo)
  43         : "r"(rs), "r"(rt), "r"(dspi)
  44        );
  45    assert(rd == result);
  46    assert(((dspo >> 20) & 0x01) == 1);
  47
  48    return 0;
  49}
  50