64 lines
1.3 KiB
C
64 lines
1.3 KiB
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, result, dspreg, dspresult;
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rt = 0x9FFFFFFD9FFFFFFD;
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rs = 0x4000000080000000;
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result = 0x7fffffffe0000003;
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dspresult = 0x1;
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__asm
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("subq_s.pw %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) & 0x1;
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if ((rd != result) || (dspreg != dspresult)) {
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printf("subq_s.pw error1\n");
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return -1;
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}
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rt = 0x123456789ABCDEF1;
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rs = 0x123456789ABCDEF2;
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result = 0x0000000000000001;
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/* This time we do not set dspctrl, but it setted in pre-action. */
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dspresult = 0x1;
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__asm
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("subq_s.pw %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) & 0x1;
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if ((rd != result) || (dspreg != dspresult)) {
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printf("subq_s.pw error2\n");
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return -1;
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}
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rt = 0x8000000080000000;
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rs = 0x7000000070000000;
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dspresult = 0x1;
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__asm
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("subq_s.pw %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) & 0x1;
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if ((dspreg != dspresult)) {
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printf("subq_s.pw error3\n");
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return -1;
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}
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return 0;
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}
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