tests/tcg/mips/mips32-dspr2/mulq_s_w.c

   1 #include<stdio.h>
   2 #include<assert.h>
   3
   4 int main()
   5 {
   6     int rd, rs, rt, dsp;
   7     int result, resultdsp;
   8
   9     rs = 0x80001234;
  10     rt = 0x80004321;
  11     result = 0x80005555;
  12
  13     __asm
  14         ("mulq_s.w %0, %1, %2\n\t"
  15          : "=r"(rd)
  16          : "r"(rs), "r"(rt)
  17         );
  18     assert(rd  == result);
  19
  20     rs = 0x80000000;
  21     rt = 0x80000000;
  22     result = 0x7FFFFFFF;
  23     resultdsp = 1;
  24
  25     __asm
  26         ("mulq_s.w %0, %2, %3\n\t"
  27          "rddsp %1\n\t"
  28          : "=r"(rd), "=r"(dsp)
  29          : "r"(rs), "r"(rt)
  30         );
  31     dsp = (dsp >> 21) & 0x01;
  32     assert(rd  == result);
  33     assert(dsp == resultdsp);
  34
  35     return 0;
  36 }