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#include "io.h"
int main(void)
{
long long achi, acli, rs, rt;
long long acho, aclo;
long long resulth, resultl;
rs = 0x00BBAACC;
rt = 0x0B1C3D2F;
achi = 0x00004433;
acli = 0xFFCC0011;
resulth = 0xFFFFFFFFFFF81F29;
resultl = 0xFFFFFFFFB355089D;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"msub $ac1, %4, %5\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
: "=r"(acho), "=r"(aclo)
: "r"(achi), "r"(acli), "r"(rs), "r"(rt)
);
if ((acho != resulth) || (aclo != resultl)) {
printf("msub wrong\n");
return -1;
}
return 0;
}
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