mirror of https://gitee.com/openkylin/qemu.git
60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
#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"
|
|
"dmsubu $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 dmsubu 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"
|
|
"dmsubu $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 dmsubu error\n");
|
|
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|