tests/tcg/mips/mips64-dsp/dextpdp.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, resdsppos;
   8     int rs;
   9     int tmp1, tmp2;
  10
  11     rs = 0xabcd1234;
  12
  13     achi = 0x12345678;
  14     acli = 0x87654321;
  15     res = 0xff;
  16     resdsp = 0x0;
  17     resdsppos = 0x2c;
  18
  19     __asm
  20         ("mthi %2, $ac1\n\t"
  21          "mtlo %3, $ac1\n\t"
  22          "wrdsp %4\n\t"
  23          "dextpdp %0, $ac1, 0x7\n\t"
  24          "rddsp %1\n\t"
  25          : "=r"(rt), "=r"(dsp)
  26          : "r"(achi), "r"(acli), "r"(rs)
  27         );
  28     tmp1 = (dsp >> 14) & 0x1;
  29     tmp2 = dsp & 0x3f;
  30
  31     if ((tmp1 != resdsp) || (rt != res) || (tmp2 != resdsppos)) {
  32         printf("dextpdp error\n");
  33         return -1;
  34     }
  35
  36     rs = 0xabcd1200;
  37
  38     achi = 0x12345678;
  39     acli = 0x87654321;
  40     resdsp = 0x1;
  41
  42     __asm
  43         ("mthi %2, $ac1\n\t"
  44          "mtlo %3, $ac1\n\t"
  45          "wrdsp %4\n\t"
  46          "dextpdp %0, $ac1, 0x7\n\t"
  47          "rddsp %1\n\t"
  48          : "=r"(rt), "=r"(dsp)
  49          : "r"(achi), "r"(acli), "r"(rs)
  50         );
  51     tmp1 = (dsp >> 14) & 0x1;
  52
  53     if (tmp1 != resdsp) {
  54         printf("dextpdp error\n");
  55         return -1;
  56     }
  57
  58     return 0;
  59 }