tests/tcg/mips/user/ase/dsp/test_dsp_r1_extrv_w.c

   1 #include<stdio.h>
   2 #include<assert.h>
   3
   4 int main()
   5 {
   6     int rt, rs, ach, acl, dsp;
   7     int result;
   8
   9     ach = 0x05;
  10     acl = 0xB4CB;
  11     dsp = 0x07;
  12     rs  = 0x03;
  13     result = 0xA0001699;
  14
  15     __asm
  16         ("wrdsp %1, 0x01\n\t"
  17          "mthi %3, $ac1\n\t"
  18          "mtlo %4, $ac1\n\t"
  19          "extrv.w %0, $ac1, %2\n\t"
  20          "rddsp %1\n\t"
  21          : "=r"(rt), "+r"(dsp)
  22          : "r"(rs), "r"(ach), "r"(acl)
  23         );
  24     dsp = (dsp >> 23) & 0x01;
  25     assert(dsp == 1);
  26     assert(result == rt);
  27
  28     /* Clear dspcontrol */
  29     dsp = 0;
  30     __asm
  31         ("wrdsp %0\n\t"
  32          :
  33          : "r"(dsp)
  34         );
  35
  36     rs = 4;
  37     ach = 0x01;
  38     acl = 0xB4CB;
  39     result = 0x10000B4C;
  40     __asm
  41         ("wrdsp %1, 0x01\n\t"
  42          "mthi %3, $ac1\n\t"
  43          "mtlo %4, $ac1\n\t"
  44          "extrv.w %0, $ac1, %2\n\t"
  45          "rddsp %1\n\t"
  46          : "=r"(rt), "+r"(dsp)
  47          : "r"(rs), "r"(ach), "r"(acl)
  48         );
  49     dsp = (dsp >> 23) & 0x01;
  50     assert(dsp == 0);
  51     assert(result == rt);
  52
  53     /* Clear dspcontrol */
  54     dsp = 0;
  55     __asm
  56         ("wrdsp %0\n\t"
  57          :
  58          : "r"(dsp)
  59         );
  60
  61     rs = 31;
  62     ach = 0x3fffffff;
  63     acl = 0x2bcdef01;
  64     result = 0x7ffffffe;
  65     __asm
  66         ("wrdsp %1, 0x01\n\t"
  67          "mthi %3, $ac1\n\t"
  68          "mtlo %4, $ac1\n\t"
  69          "extrv.w %0, $ac1, %2\n\t"
  70          "rddsp %1\n\t"
  71          : "=r"(rt), "+r"(dsp)
  72          : "r"(rs), "r"(ach), "r"(acl)
  73         );
  74     dsp = (dsp >> 23) & 0x01;
  75     assert(dsp == 0);
  76     assert(result == rt);
  77
  78
  79     return 0;
  80 }