43 lines
918 B
C
43 lines
918 B
C
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#include "io.h"
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int main(void)
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{
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long long rd, rs, rt, dspreg, result, dspresult;
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rs = 0x1111111111111111;
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rt = 0x2222222222222222;
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result = 0x1111111111111111;
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dspresult = 0x00;
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__asm("subu_s.qh %0, %2, %3\n\t"
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"rddsp %1\n\t"
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: "=r"(rd), "=r"(dspreg)
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: "r"(rs), "r"(rt)
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);
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dspreg = ((dspreg >> 20) & 0x01);
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if ((rd != result) || (dspreg != dspresult)) {
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printf("subu_s.qh error\n\t");
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return -1;
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}
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rs = 0x8888888888888888;
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rt = 0xa888a888a888a888;
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result = 0x0000000000000000;
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dspresult = 0x01;
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__asm("subu_s.qh %0, %2, %3\n\t"
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"rddsp %1\n\t"
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: "=r"(rd), "=r"(dspreg)
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: "r"(rs), "r"(rt)
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);
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dspreg = ((dspreg >> 20) & 0x01);
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if ((rd != result) || (dspreg != dspresult)) {
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printf("subu_s.qh error\n\t");
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return -1;
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}
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return 0;
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}
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