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

   1 #include "io.h"
   2
   3 int main(void)
   4 {
   5     long long rt, dsp;
   6     long long achi, acli;
   7     long long res, resdsp;
   8     int rs;
   9
  10     rs = 0xabcd1234;
  11
  12     achi = 0x12345678;
  13     acli = 0x87654321;
  14     res = 0xff;
  15     resdsp = 0x0;
  16
  17     __asm
  18         ("mthi %2, $ac1\n\t"
  19          "mtlo %3, $ac1\n\t"
  20          "wrdsp %4\n\t"
  21          "dextp %0, $ac1, 0x7\n\t"
  22          "rddsp %1\n\t"
  23          : "=r"(rt), "=r"(dsp)
  24          : "r"(achi), "r"(acli), "r"(rs)
  25         );
  26     dsp = (dsp >> 14) & 0x1;
  27     if ((dsp != resdsp) || (rt != res)) {
  28         printf("dextp error\n");
  29         return -1;
  30     }
  31
  32     rs = 0xabcd1200;
  33
  34     achi = 0x12345678;
  35     acli = 0x87654321;
  36     resdsp = 0x1;
  37
  38     __asm
  39         ("mthi %2, $ac1\n\t"
  40          "mtlo %3, $ac1\n\t"
  41          "wrdsp %4\n\t"
  42          "dextp %0, $ac1, 0x7\n\t"
  43          "rddsp %1\n\t"
  44          : "=r"(rt), "=r"(dsp)
  45          : "r"(achi), "r"(acli), "r"(rs)
  46         );
  47     dsp = (dsp >> 14) & 0x1;
  48     if (dsp != resdsp) {
  49         printf("dextp error\n");
  50         return -1;
  51     }
  52
  53     return 0;
  54 }