tests/tcg/mips/mips32-dsp/dpsq_sa_l_w.c

   1 #include<stdio.h>
   2 #include<assert.h>
   3
   4 int main()
   5 {
   6     int rs, rt, dsp;
   7     int ach = 5, acl = 5;
   8     int resulth, resultl, resultdsp;
   9
  10     rs      = 0xBC0123AD;
  11     rt      = 0x01643721;
  12     resulth = 0xfdf4cbe0;
  13     resultl = 0xd138776b;
  14     resultdsp = 0x00;
  15     __asm
  16         ("mthi  %0, $ac1\n\t"
  17          "mtlo  %1, $ac1\n\t"
  18          "dpsq_sa.l.w $ac1, %3, %4\n\t"
  19          "mfhi  %0, $ac1\n\t"
  20          "mflo  %1, $ac1\n\t"
  21          "rddsp %2\n\t"
  22          : "+r"(ach), "+r"(acl), "=r"(dsp)
  23          : "r"(rs), "r"(rt)
  24         );
  25     dsp = (dsp >> 17) & 0x01;
  26     assert(dsp == resultdsp);
  27     assert(ach == resulth);
  28     assert(acl == resultl);
  29
  30     ach = 0x54321123;
  31     acl = 5;
  32     rs      = 0x80000000;
  33     rt      = 0x80000000;
  34
  35     resulth = 0xd4321123;
  36     resultl = 0x06;
  37     resultdsp = 0x01;
  38
  39     __asm
  40         ("mthi  %0, $ac1\n\t"
  41          "mtlo  %1, $ac1\n\t"
  42          "dpsq_sa.l.w $ac1, %3, %4\n\t"
  43          "mfhi  %0, $ac1\n\t"
  44          "mflo  %1, $ac1\n\t"
  45          "rddsp %2\n\t"
  46          : "+r"(ach), "+r"(acl), "=r"(dsp)
  47          : "r"(rs), "r"(rt)
  48         );
  49     dsp = (dsp >> 17) & 0x01;
  50     assert(dsp == resultdsp);
  51     assert(ach == resulth);
  52     assert(acl == resultl);
  53
  54     return 0;
  55 }