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#include <stdio.h>
typedef unsigned long long int ULong;
ULong do_clc ( void )
{
ULong res;
__asm__ __volatile__(
"pushq $0x8d5\n\t" /* OSZACP */
"popfq\n\t"
"clc\n\t"
"pushfq\n\t"
"popq %0"
: "=r"(res)
:
: "memory", "cc"
);
return res;
}
ULong do_stc ( void )
{
ULong res;
__asm__ __volatile__(
"pushq $0x0\n\t"
"popfq\n\t"
"stc\n\t"
"pushfq\n\t"
"popq %0"
: "=r"(res)
:
: "memory", "cc"
);
return res;
}
ULong do_cmc ( void )
{
ULong res;
__asm__ __volatile__(
"pushq $0x0\n\t"
"popfq\n\t"
"stc\n\t"
"cmc\n\t"
"pushfq\n\t"
"popq %0"
: "=r"(res)
:
: "memory", "cc"
);
return res;
}
int main ( void )
{
printf("clc: 0x%016llx\n", 0x8d5 & do_clc());
printf("stc: 0x%016llx\n", 0x8d5 & do_stc());
printf("cmc: 0x%016llx\n", 0x8d5 & do_cmc());
return 0;
}
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