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

   1 #include "io.h"
   2
   3 int main(void)
   4 {
   5     long long dsp_i, dsp_o;
   6     long long ccond_i, outflag_i, efi_i, c_i, scount_i, pos_i;
   7     long long ccond_o, outflag_o, efi_o, c_o, scount_o, pos_o;
   8     long long ccond_r, outflag_r, efi_r, c_r, scount_r, pos_r;
   9
  10     ccond_i = 0x000000BC;/* 4 */
  11     outflag_i = 0x0000001B;/* 3 */
  12     efi_i = 0x00000001;/* 5 */
  13     c_i = 0x00000001;/* 2 */
  14     scount_i = 0x0000000F;/* 1 */
  15     pos_i = 0x0000000C;/* 0 */
  16
  17     dsp_i = (ccond_i << 24) | (outflag_i << 16) | (efi_i << 14) | (c_i << 13)
  18             | (scount_i << 7) | pos_i;
  19
  20     ccond_r = ccond_i;
  21     outflag_r = outflag_i;
  22     efi_r = efi_i;
  23     c_r = c_i;
  24     scount_r = scount_i;
  25     pos_r = pos_i;
  26
  27     __asm
  28         ("wrdsp %1, 0x3F\n\t"
  29          "rddsp %0, 0x3F\n\t"
  30          : "=r"(dsp_o)
  31          : "r"(dsp_i)
  32         );
  33
  34     ccond_o = (dsp_o >> 24) & 0xFF;
  35     outflag_o = (dsp_o >> 16) & 0xFF;
  36     efi_o = (dsp_o >> 14) & 0x01;
  37     c_o = (dsp_o >> 14) & 0x01;
  38     scount_o = (dsp_o >> 7) & 0x3F;
  39     pos_o = dsp_o & 0x1F;
  40
  41     if ((ccond_o != ccond_r) || (outflag_o != outflag_r) || (efi_o != efi_r) \
  42             || (c_o != c_r) || (scount_o != scount_r) || (pos_o != pos_r)) {
  43         printf("wrddsp wrong\n");
  44
  45         return -1;
  46     }
  47     return 0;
  48 }