CSAPP/tmul.c


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int tmul_ok_asm(long x, long y, long *dest )
{
	long r = x*y;
	*dest = r;
	return r > 0;
}

int umul_ok_asm(unsigned long x, unsigned long y, unsigned long *dest)
{
	unsigned long	r = x*y;

	*dest = r;
	return r > 0;
}