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

   1#include "io.h"
   2
   3int 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}
  55