qemu/tests/tcg/mips/mips32-dsp/msub.c

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#include<stdio.h>
#include<assert.h>
int main()
{
int achi, acli, rs, rt;
int acho, aclo;
int resulth, resultl;
rs = 0x00BBAACC;
rt = 0x0B1C3D2F;
achi = 0x00004433;
acli = 0xFFCC0011;
resulth = 0xFFF81F29;
resultl = 0xB355089D;
__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)
);
assert(acho == resulth);
assert(aclo == resultl);
return 0;
}