tests/tcg/mips/mips64-dsp/extp.c

   1 #include "io.h"
   2
   3 int main(void)
   4 {
   5     long long rt, ach, acl, dsp;
   6     long long result;
   7
   8     ach = 0x05;
   9     acl = 0xB4CB;
  10     dsp = 0x07;
  11     result = 0x000C;
  12
  13     __asm
  14         ("wrdsp %1, 0x01\n\t"
  15          "mthi %2, $ac1\n\t"
  16          "mtlo %3, $ac1\n\t"
  17          "extp %0, $ac1, 0x03\n\t"
  18          "rddsp %1\n\t"
  19          : "=r"(rt), "+r"(dsp)
  20          : "r"(ach), "r"(acl)
  21         );
  22     dsp = (dsp >> 14) & 0x01;
  23     if ((dsp != 0) || (result != rt)) {
  24         printf("extp wrong\n");
  25
  26         return -1;
  27     }
  28
  29     ach = 0x05;
  30     acl = 0xB4CB;
  31     dsp = 0x01;
  32
  33     __asm
  34         ("wrdsp %1, 0x01\n\t"
  35          "mthi %2, $ac1\n\t"
  36          "mtlo %3, $ac1\n\t"
  37          "extp %0, $ac1, 0x03\n\t"
  38          "rddsp %1\n\t"
  39          : "=r"(rt), "+r"(dsp)
  40          : "r"(ach), "r"(acl)
  41         );
  42     dsp = (dsp >> 14) & 0x01;
  43     if (dsp != 1) {
  44         printf("extp wrong\n");
  45
  46         return -1;
  47     }
  48
  49     return 0;
  50 }