test_dsp_r1_madd.c (574B)
1 #include<stdio.h> 2 #include<assert.h> 3 4 int main() 5 { 6 int rt, rs; 7 int achi, acli; 8 int acho, aclo; 9 int resulth, resultl; 10 11 achi = 0x05; 12 acli = 0xB4CB; 13 rs = 0x01; 14 rt = 0x01; 15 resulth = 0x05; 16 resultl = 0xB4CC; 17 18 __asm 19 ("mthi %2, $ac1\n\t" 20 "mtlo %3, $ac1\n\t" 21 "madd $ac1, %4, %5\n\t" 22 "mfhi %0, $ac1\n\t" 23 "mflo %1, $ac1\n\t" 24 : "=r"(acho), "=r"(aclo) 25 : "r"(achi), "r"(acli), "r"(rs), "r"(rt) 26 ); 27 assert(resulth == acho); 28 assert(resultl == aclo); 29 30 return 0; 31 }