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#include "io.h"
int main(void)
{
long long rd, rs, rt, result, dspreg, dspresult;
rt = 0x9FFFFFFD9FFFFFFD;
rs = 0x4000000080000000;
result = 0x7fffffffe0000003;
dspresult = 0x1;
__asm
("subq_s.pw %0, %2, %3\n\t"
"rddsp %1\n\t"
: "=r"(rd), "=r"(dspreg)
: "r"(rs), "r"(rt)
);
dspreg = (dspreg >> 20) & 0x1;
if ((rd != result) || (dspreg != dspresult)) {
printf("subq_s.pw error1\n");
return -1;
}
rt = 0x123456789ABCDEF1;
rs = 0x123456789ABCDEF2;
result = 0x0000000000000001;
/* This time we do not set dspctrl, but it setted in pre-action. */
dspresult = 0x1;
__asm
("subq_s.pw %0, %2, %3\n\t"
"rddsp %1\n\t"
: "=r"(rd), "=r"(dspreg)
: "r"(rs), "r"(rt)
);
dspreg = (dspreg >> 20) & 0x1;
if ((rd != result) || (dspreg != dspresult)) {
printf("subq_s.pw error2\n");
return -1;
}
rt = 0x8000000080000000;
rs = 0x7000000070000000;
dspresult = 0x1;
__asm
("subq_s.pw %0, %2, %3\n\t"
"rddsp %1\n\t"
: "=r"(rd), "=r"(dspreg)
: "r"(rs), "r"(rt)
);
dspreg = (dspreg >> 20) & 0x1;
if ((dspreg != dspresult)) {
printf("subq_s.pw error3\n");
return -1;
}
return 0;
}
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