| #include<stdio.h> |
| #include<assert.h> |
| |
| 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; |
| } |