tests/tcg/mips/mips64-dsp/rddsp.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) | \
  18             (outflag_i << 16) | \
  19             (efi_i     << 14) | \
  20             (c_i       << 13) | \
  21             (scount_i  <<  7) | \
  22             pos_i;
  23
  24     ccond_r   = ccond_i;
  25     outflag_r = outflag_i;
  26     efi_r     = efi_i;
  27     c_r       = c_i;
  28     scount_r  = scount_i;
  29     pos_r     = pos_i;
  30
  31     __asm
  32         ("wrdsp %1, 0x3F\n\t"
  33          "rddsp %0, 0x3F\n\t"
  34          : "=r"(dsp_o)
  35          : "r"(dsp_i)
  36         );
  37
  38     ccond_o   = (dsp_o >> 24) & 0xFF;
  39     outflag_o = (dsp_o >> 16) & 0xFF;
  40     efi_o     = (dsp_o >> 14) & 0x01;
  41     c_o       = (dsp_o >> 14) & 0x01;
  42     scount_o  = (dsp_o >>  7) & 0x3F;
  43     pos_o     =  dsp_o & 0x1F;
  44
  45     if ((ccond_o != ccond_r) || (outflag_o != outflag_r) || (efi_o != efi_r) \
  46             || (c_o != c_r) || (scount_o != scount_r) || (pos_o != pos_r)) {
  47         printf("rddsp wrong\n");
  48
  49         return -1;
  50     }
  51
  52     return 0;
  53 }