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

   1#include "io.h"
   2
   3int 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}
  51