#include #include int main() { int rd, rt, dsp; int result, resultdsp; rt = 0x87654321; result = 0x87654321; resultdsp = 0x00; __asm ("wrdsp $0\n\t" "shll.qb %0, %2, 0x00\n\t" "rddsp %1\n\t" : "=r"(rd), "=r"(dsp) : "r"(rt) ); dsp = (dsp >> 22) & 0x01; assert(dsp == resultdsp); assert(rd == result); rt = 0x87654321; result = 0x38281808; resultdsp = 0x01; __asm ("wrdsp $0\n\t" "shll.qb %0, %2, 0x03\n\t" "rddsp %1\n\t" : "=r"(rd), "=r"(dsp) : "r"(rt) ); dsp = (dsp >> 22) & 0x01; assert(dsp == resultdsp); assert(rd == result); rt = 0x00000001; result = 0x00000080; resultdsp = 0x00; __asm ("wrdsp $0\n\t" "shll.qb %0, %2, 0x07\n\t" "rddsp %1\n\t" : "=r"(rd), "=r"(dsp) : "r"(rt) ); dsp = (dsp >> 22) & 0x01; assert(dsp == resultdsp); assert(rd == result); return 0; }