qemu

FORK: QEMU emulator
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test_dsp_r1_shilo.c (799B)

      1 #include<stdio.h>
      2 #include<assert.h>
      3 
      4 int main()
      5 {
      6     int ach, acl;
      7     int resulth, resultl;
      8 
      9     ach = 0xBBAACCFF;
     10     acl = 0x1C3B001D;
     11 
     12     resulth = 0x17755;
     13     resultl = 0x99fe3876;
     14 
     15     __asm
     16         ("mthi %0, $ac1\n\t"
     17          "mtlo %1, $ac1\n\t"
     18          "shilo $ac1, 0x0F\n\t"
     19          "mfhi %0, $ac1\n\t"
     20          "mflo %1, $ac1\n\t"
     21          : "+r"(ach), "+r"(acl)
     22         );
     23     assert(ach == resulth);
     24     assert(acl == resultl);
     25 
     26 
     27     ach = 0x1;
     28     acl = 0x80000000;
     29 
     30     resulth = 0x3;
     31     resultl = 0x0;
     32 
     33     __asm
     34         ("mthi %0, $ac1\n\t"
     35          "mtlo %1, $ac1\n\t"
     36          "shilo $ac1, -1\n\t"
     37          "mfhi %0, $ac1\n\t"
     38          "mflo %1, $ac1\n\t"
     39          : "+r"(ach), "+r"(acl)
     40         );
     41     assert(ach == resulth);
     42     assert(acl == resultl);
     43 
     44     return 0;
     45 }