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test_dsp_r1_shll_ph.c (1073B)

      1 #include<stdio.h>
      2 #include<assert.h>
      3 
      4 int main()
      5 {
      6     int rd, rt, dsp;
      7     int result, resultdsp;
      8 
      9     rt        = 0x12345678;
     10     result    = 0xA000C000;
     11     resultdsp = 1;
     12 
     13     __asm
     14         ("wrdsp $0\n\t"
     15          "shll.ph %0, %2, 0x0B\n\t"
     16          "rddsp %1\n\t"
     17          : "=r"(rd), "=r"(dsp)
     18          : "r"(rt)
     19         );
     20     dsp = (dsp >> 22) & 0x01;
     21     assert(dsp == resultdsp);
     22     assert(rd  == result);
     23 
     24     rt        = 0x7fff8000;
     25     result    = 0xfffe0000;
     26     resultdsp = 1;
     27 
     28     __asm
     29         ("wrdsp $0\n\t"
     30          "shll.ph %0, %2, 0x01\n\t"
     31          "rddsp %1\n\t"
     32          : "=r"(rd), "=r"(dsp)
     33          : "r"(rt)
     34         );
     35     dsp = (dsp >> 22) & 0x01;
     36     assert(dsp == resultdsp);
     37     assert(rd  == result);
     38 
     39     rt        = 0x00000001;
     40     result    = 0x00008000;
     41     resultdsp = 1;
     42 
     43     __asm
     44         ("wrdsp $0\n\t"
     45          "shll.ph %0, %2, 0x0F\n\t"
     46          "rddsp %1\n\t"
     47          : "=r"(rd), "=r"(dsp)
     48          : "r"(rt)
     49         );
     50     dsp = (dsp >> 22) & 0x01;
     51     assert(dsp == resultdsp);
     52     assert(rd  == result);
     53 
     54     return 0;
     55 }