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

   1 #include<stdio.h>
   2 #include<assert.h>
   3
   4 int main()
   5 {
   6     int rs, ach, acl, dsp;
   7     int result, resulth, resultl;
   8
   9     dsp = 0x07;
  10     ach = 0x05;
  11     acl = 0xB4CB;
  12     rs  = 0x00FFBBAA;
  13     resulth = 0xB4CB;
  14     resultl = 0x00FFBBAA;
  15     result  = 0x27;
  16
  17     __asm
  18         ("wrdsp %0, 0x01\n\t"
  19          "mthi %1, $ac1\n\t"
  20          "mtlo %2, $ac1\n\t"
  21          "mthlip %3, $ac1\n\t"
  22          "mfhi %1, $ac1\n\t"
  23          "mflo %2, $ac1\n\t"
  24          "rddsp %0\n\t"
  25          : "+r"(dsp), "+r"(ach), "+r"(acl)
  26          : "r"(rs)
  27         );
  28     dsp = dsp & 0x3F;
  29     assert(dsp == result);
  30     assert(ach == resulth);
  31     assert(acl == resultl);
  32
  33     dsp = 0x1f;
  34     ach = 0x05;
  35     acl = 0xB4CB;
  36     rs  = 0x00FFBBAA;
  37     resulth = 0xB4CB;
  38     resultl = 0x00FFBBAA;
  39     result  = 0x3f;
  40
  41     __asm
  42         ("wrdsp %0, 0x01\n\t"
  43          "mthi %1, $ac1\n\t"
  44          "mtlo %2, $ac1\n\t"
  45          "mthlip %3, $ac1\n\t"
  46          "mfhi %1, $ac1\n\t"
  47          "mflo %2, $ac1\n\t"
  48          "rddsp %0\n\t"
  49          : "+r"(dsp), "+r"(ach), "+r"(acl)
  50          : "r"(rs)
  51         );
  52     dsp = dsp & 0x3F;
  53     assert(dsp == result);
  54     assert(ach == resulth);
  55     assert(acl == resultl);
  56
  57     return 0;
  58 }