qemu

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test_dsp_r1_mthlip.c (1191B)

      1 #include<stdio.h>
      2 #include<assert.h>
      3 
      4 int main()
      5 {
      6     int rs, ach, acl, dsp;
      7     int result, resulth, resultl;
      8 
      9     dsp = 0x07;
     10     ach = 0x05;
     11     acl = 0xB4CB;
     12     rs  = 0x00FFBBAA;
     13     resulth = 0xB4CB;
     14     resultl = 0x00FFBBAA;
     15     result  = 0x27;
     16 
     17     __asm
     18         ("wrdsp %0, 0x01\n\t"
     19          "mthi %1, $ac1\n\t"
     20          "mtlo %2, $ac1\n\t"
     21          "mthlip %3, $ac1\n\t"
     22          "mfhi %1, $ac1\n\t"
     23          "mflo %2, $ac1\n\t"
     24          "rddsp %0\n\t"
     25          : "+r"(dsp), "+r"(ach), "+r"(acl)
     26          : "r"(rs)
     27         );
     28     dsp = dsp & 0x3F;
     29     assert(dsp == result);
     30     assert(ach == resulth);
     31     assert(acl == resultl);
     32 
     33     dsp = 0x1f;
     34     ach = 0x05;
     35     acl = 0xB4CB;
     36     rs  = 0x00FFBBAA;
     37     resulth = 0xB4CB;
     38     resultl = 0x00FFBBAA;
     39     result  = 0x3f;
     40 
     41     __asm
     42         ("wrdsp %0, 0x01\n\t"
     43          "mthi %1, $ac1\n\t"
     44          "mtlo %2, $ac1\n\t"
     45          "mthlip %3, $ac1\n\t"
     46          "mfhi %1, $ac1\n\t"
     47          "mflo %2, $ac1\n\t"
     48          "rddsp %0\n\t"
     49          : "+r"(dsp), "+r"(ach), "+r"(acl)
     50          : "r"(rs)
     51         );
     52     dsp = dsp & 0x3F;
     53     assert(dsp == result);
     54     assert(ach == resulth);
     55     assert(acl == resultl);
     56 
     57     return 0;
     58 }