tests/tcg/mips/mips64-dsp/dextr_s_h.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
   9     achi = 0x87654321;
  10     acli = 0x12345678;
  11
  12     res = 0xffffffffffff8000;
  13     resdsp = 0x1;
  14
  15     __asm
  16         ("mthi %2, $ac1\n\t"
  17          "mtlo %3, $ac1\n\t"
  18          "dextr_s.h %0, $ac1, 0x8\n\t"
  19          "rddsp %1\n\t"
  20          : "=r"(rt), "=r"(dsp)
  21          : "r"(achi), "r"(acli)
  22         );
  23     dsp = (dsp >> 23) & 0x1;
  24
  25     if ((dsp != resdsp) || (rt != res)) {
  26         printf("1 dextr_s.h error\n");
  27         return -1;
  28     }
  29
  30     achi = 0x77654321;
  31     acli = 0x12345678;
  32
  33     res = 0x7fff;
  34     resdsp = 0x1;
  35
  36     __asm
  37         ("mthi %2, $ac1\n\t"
  38          "mtlo %3, $ac1\n\t"
  39          "dextr_s.h %0, $ac1, 0x8\n\t"
  40          "rddsp %1\n\t"
  41          : "=r"(rt), "=r"(dsp)
  42          : "r"(achi), "r"(acli)
  43         );
  44     dsp = (dsp >> 23) & 0x1;
  45
  46     if ((dsp != resdsp) || (rt != res)) {
  47         printf("2 dextr_s.h error\n");
  48         return -1;
  49     }
  50
  51     achi = 0x00;
  52     acli = 0x78;
  53
  54     res = 0x7;
  55     resdsp = 0x1;
  56
  57     __asm
  58         ("mthi %2, $ac1\n\t"
  59          "mtlo %3, $ac1\n\t"
  60          "dextr_s.h %0, $ac1, 0x4\n\t"
  61          "rddsp %1\n\t"
  62          : "=r"(rt), "=r"(dsp)
  63          : "r"(achi), "r"(acli)
  64         );
  65     dsp = (dsp >> 23) & 0x1;
  66
  67     if ((dsp != resdsp) || (rt != res)) {
  68         printf("3 dextr_s.h error\n");
  69         return -1;
  70     }
  71
  72     return 0;
  73 }