|  | #include<stdio.h> | 
|  | #include<assert.h> | 
|  |  | 
|  | int main() | 
|  | { | 
|  | int rt, rs; | 
|  | int achi, acli; | 
|  | int dsp; | 
|  | int acho, aclo; | 
|  | int resulth, resultl; | 
|  | int resdsp; | 
|  |  | 
|  | achi = 0x00000000; | 
|  | acli = 0x0000B4CB; | 
|  | rs  = 0x0000FF06; | 
|  | rt  = 0x0000CB00; | 
|  | resulth = 0x00000000; | 
|  | resultl = 0x006838CB; | 
|  |  | 
|  | __asm | 
|  | ("mthi %2, $ac1\n\t" | 
|  | "mtlo %3, $ac1\n\t" | 
|  | "maq_sa.w.phr $ac1, %4, %5\n\t" | 
|  | "mfhi %0, $ac1\n\t" | 
|  | "mflo %1, $ac1\n\t" | 
|  | : "=r"(acho), "=r"(aclo) | 
|  | : "r"(achi), "r"(acli), "r"(rs), "r"(rt) | 
|  | ); | 
|  | assert(resulth == acho); | 
|  | assert(resultl == aclo); | 
|  |  | 
|  | achi = 0x00000000; | 
|  | acli = 0x0000B4CB; | 
|  | rs  = 0x00008000; | 
|  | rt  = 0x00008000; | 
|  | resulth = 0x00000000; | 
|  | resultl = 0x7FFFFFFF; | 
|  | resdsp = 0x01; | 
|  |  | 
|  | __asm | 
|  | ("mthi %3, $ac1\n\t" | 
|  | "mtlo %4, $ac1\n\t" | 
|  | "maq_sa.w.phr $ac1, %5, %6\n\t" | 
|  | "mfhi %0, $ac1\n\t" | 
|  | "mflo %1, $ac1\n\t" | 
|  | "rddsp %2\n\t" | 
|  | : "=r"(acho), "=r"(aclo), "=r"(dsp) | 
|  | : "r"(achi), "r"(acli), "r"(rs), "r"(rt) | 
|  | ); | 
|  | assert(resulth == acho); | 
|  | assert(resultl == aclo); | 
|  | assert(((dsp >> 17) & 0x01) == 0x01); | 
|  |  | 
|  | return 0; | 
|  | } |