Function x86SUB

NULLC/Translator_X86.cpp:674–693

sub dst, num

// sub dst, num
int x86SUB(unsigned char *stream, x86Reg dst, int num)
{
	if((char)(num) == num)
	{
		stream[0] = 0x83;
		stream[1] = encodeRegister(dst, 5);
		stream[2] = (char)(num);
		return 3;
	}
	if(dst == rEAX)
	{
		stream[0] = 0x2d;
		*(int*)(stream+1) = num;
		return 5;
	}
	stream[0] = 0x81;
	stream[1] = encodeRegister(dst, 5);
	*(int*)(stream+2) = num;
	return 6;
}
// sub dst, src
int x86SUB(unsigned char *stream, x86Reg dst, x86Reg src)
{