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

   1 #include<stdio.h>
   2 #include<assert.h>
   3
   4 int main()
   5 {
   6     int rt, rs, ach, acl, dsp, pos, efi;
   7     int result;
   8
   9     ach = 0x05;
  10     acl = 0xB4CB;
  11     dsp = 0x07;
  12     rs  = 0x03;
  13     result = 0x000C;
  14
  15     __asm
  16         ("wrdsp %1, 0x01\n\t"
  17          "mthi %2, $ac1\n\t"
  18          "mtlo %3, $ac1\n\t"
  19          "extpdpv %0, $ac1, %4\n\t"
  20          "rddsp %1\n\t"
  21          : "=r"(rt), "+r"(dsp)
  22          : "r"(ach), "r"(acl), "r"(rs)
  23         );
  24     pos =  dsp & 0x3F;
  25     efi = (dsp >> 14) & 0x01;
  26     assert(pos == 3);
  27     assert(efi == 0);
  28     assert(result == rt);
  29
  30     ach = 0x05;
  31     acl = 0xB4CB;
  32     dsp = 0x01;
  33
  34     __asm
  35         ("wrdsp %1, 0x01\n\t"
  36          "mthi %2, $ac1\n\t"
  37          "mtlo %3, $ac1\n\t"
  38          "extpdpv %0, $ac1, %4\n\t"
  39          "rddsp %1\n\t"
  40          : "=r"(rt), "+r"(dsp)
  41          : "r"(ach), "r"(acl), "r"(rs)
  42         );
  43     efi = (dsp >> 14) & 0x01;
  44     assert(efi == 1);
  45
  46     return 0;
  47 }