tests/tcg/mips/mips32-dspr2/mul_ph.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 = 0x03FB1234;
  10     rt = 0x0BCC4321;
  11     result = 0xF504F4B4;
  12     resultdsp = 1;
  13
  14     __asm
  15         ("mul.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 >> 21) & 0x01;
  21     assert(rd  == result);
  22     assert(dsp == resultdsp);
  23
  24     dsp = 0;
  25     __asm
  26         ("wrdsp %0\n\t"
  27          :
  28          : "r"(dsp)
  29         );
  30
  31     rs = 0x00210010;
  32     rt = 0x00110005;
  33     result = 0x2310050;
  34     resultdsp = 0;
  35
  36     __asm
  37         ("mul.ph %0, %2, %3\n\t"
  38          "rddsp %1\n\t"
  39          : "=r"(rd), "=r"(dsp)
  40          : "r"(rs), "r"(rt)
  41         );
  42     dsp = (dsp >> 21) & 0x01;
  43     assert(rd  == result);
  44     assert(dsp == resultdsp);
  45
  46     return 0;
  47 }