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

   1 #include "io.h"
   2
   3 int main(void)
   4 {
   5     long long rt, ach, acl, dsp, pos, efi;
   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          "extpdp %0, $ac1, 0x03\n\t"
  18          "rddsp %1\n\t"
  19          : "=r"(rt), "+r"(dsp)
  20          : "r"(ach), "r"(acl)
  21         );
  22     pos =  dsp & 0x3F;
  23     efi = (dsp >> 14) & 0x01;
  24     if ((pos != 3) || (efi != 0) || (result != rt)) {
  25         printf("extpdp wrong\n");
  26
  27         return -1;
  28     }
  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          "extpdp %0, $ac1, 0x03\n\t"
  39          "rddsp %1\n\t"
  40          : "=r"(rt), "+r"(dsp)
  41          : "r"(ach), "r"(acl)
  42         );
  43     efi = (dsp >> 14) & 0x01;
  44     if (efi != 1) {
  45         printf("extpdp wrong\n");
  46
  47         return -1;
  48     }
  49
  50     return 0;
  51 }