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#include "io.h"
int main(void)
{
long long rt, rs;
long long achi, acli;
long long acho, aclo;
long long resh, resl;
achi = 0x1;
acli = 0x8;
rs = 0x0000000100000001;
rt = 0x0000000200000002;
resh = 0x1;
resl = 0x4;
__asm
("mthi %2, $ac1 \t\n"
"mtlo %3, $ac1 \t\n"
"dmsub $ac1, %4, %5\t\n"
"mfhi %0, $ac1 \t\n"
"mflo %1, $ac1 \t\n"
: "=r"(acho), "=r"(aclo)
: "r"(achi), "r"(acli), "r"(rs), "r"(rt)
);
if ((acho != resh) || (aclo != resl)) {
printf("1 dmsub error\n");
return -1;
}
achi = 0xfffffffF;
acli = 0xfffffffF;
rs = 0x8888999977776666;
rt = 0x9999888877776666;
resh = 0xffffffffffffffff;
resl = 0x789aae13;
__asm
("mthi %2, $ac1 \t\n"
"mtlo %3, $ac1 \t\n"
"dmsub $ac1, %4, %5\t\n"
"mfhi %0, $ac1 \t\n"
"mflo %1, $ac1 \t\n"
: "=r"(acho), "=r"(aclo)
: "r"(achi), "r"(acli), "r"(rs), "r"(rt)
);
if ((acho != resh) || (aclo != resl)) {
printf("2 dmsub error\n");
return -1;
}
return 0;
}
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