diff options
Diffstat (limited to 'qemu/tests/tcg/mips/mips32-dsp/subq_s_w.c')
-rw-r--r-- | qemu/tests/tcg/mips/mips32-dsp/subq_s_w.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/qemu/tests/tcg/mips/mips32-dsp/subq_s_w.c b/qemu/tests/tcg/mips/mips32-dsp/subq_s_w.c new file mode 100644 index 000000000..9d456a90f --- /dev/null +++ b/qemu/tests/tcg/mips/mips32-dsp/subq_s_w.c @@ -0,0 +1,74 @@ +#include<stdio.h> +#include<assert.h> + +int main() +{ + int rd, rs, rt, dsp; + int result, resultdsp; + + rs = 0x12345678; + rt = 0x87654321; + result = 0x7FFFFFFF; + resultdsp = 0x01; + + __asm + ("wrdsp $0\n\t" + "subq_s.w %0, %2, %3\n\t" + "rddsp %1\n\t" + : "=r"(rd), "=r"(dsp) + : "r"(rs), "r"(rt) + ); + dsp = (dsp >> 20) & 0x01; + assert(dsp == resultdsp); + assert(rd == result); + + rs = 0x66666; + rt = 0x55555; + result = 0x11111; + resultdsp = 0x0; + + __asm + ("wrdsp $0\n\t" + "subq_s.w %0, %2, %3\n\t" + "rddsp %1\n\t" + : "=r"(rd), "=r"(dsp) + : "r"(rs), "r"(rt) + ); + dsp = (dsp >> 20) & 0x01; + assert(dsp == resultdsp); + assert(rd == result); + + rs = 0x0; + rt = 0x80000000; + result = 0x7FFFFFFF; + resultdsp = 0x01; + + __asm + ("wrdsp $0\n\t" + "subq_s.w %0, %2, %3\n\t" + "rddsp %1\n\t" + : "=r"(rd), "=r"(dsp) + : "r"(rs), "r"(rt) + ); + dsp = (dsp >> 20) & 0x01; + assert(dsp == resultdsp); + assert(rd == result); + + rs = 0x80000000; + rt = 0x80000000; + result = 0; + resultdsp = 0x00; + + __asm + ("wrdsp $0\n\t" + "subq_s.w %0, %2, %3\n\t" + "rddsp %1\n\t" + : "=r"(rd), "=r"(dsp) + : "r"(rs), "r"(rt) + ); + dsp = (dsp >> 20) & 0x01; + assert(dsp == resultdsp); + assert(rd == result); + + return 0; +} |