tests/tcg/mips/mips64-dsp/extr_w.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     result = 0xFFFFFFFFA0001699;
  11     __asm
  12         ("mthi %2, $ac1\n\t"
  13          "mtlo %3, $ac1\n\t"
  14          "extr.w %0, $ac1, 0x03\n\t"
  15          "rddsp %1\n\t"
  16          : "=r"(rt), "=r"(dsp)
  17          : "r"(ach), "r"(acl)
  18         );
  19     dsp = (dsp >> 23) & 0x01;
  20     if ((dsp != 1) || (result != rt)) {
  21         printf("extr.w wrong\n");
  22
  23         return -1;
  24     }
  25
  26     /* Clear dspcontrol */
  27     dsp = 0;
  28     __asm
  29         ("wrdsp %0\n\t"
  30          :
  31          : "r"(dsp)
  32         );
  33
  34     ach = 0x01;
  35     acl = 0xB4CB;
  36     result = 0x10000B4C;
  37     __asm
  38         ("mthi %2, $ac1\n\t"
  39          "mtlo %3, $ac1\n\t"
  40          "extr.w %0, $ac1, 0x04\n\t"
  41          "rddsp %1\n\t"
  42          : "=r"(rt), "=r"(dsp)
  43          : "r"(ach), "r"(acl)
  44         );
  45     dsp = (dsp >> 23) & 0x01;
  46     if ((dsp != 0) || (result != rt)) {
  47         printf("extr.w wrong\n");
  48
  49         return -1;
  50     }
  51
  52     return 0;
  53 }