#define MEMORY  ((int*)0)
 
int _readb__ (int addr) 
{
	int waddr = addr & 0x3fffffff;
	int word = MEMORY[waddr];
	if (addr < 0) {
		word = RHW(word);
	}
	if (addr << 1 < 0) {
		word = RBP(word);
	}
	return word & 0xff;
}

void _storeb__ (int value, int addr) 
{
	int waddr;
	int mask = -256;
	value &= 255;
	if (addr << 1 < 0) {
		value = RBP(value);
		mask = RBP(mask);
	}
	if (addr < 0) {
		value = RHW(value);
		mask = RHW(mask);
	}
    waddr = addr & 0x3fffffff;
	MEMORY[waddr] = value | (mask & MEMORY[waddr]);
}
 
int _readw__ (int addr) 
{
	int waddr = addr & 0x3fffffff;
	int word = MEMORY[waddr];
	if (addr < 0) {
		word = RHW(word);
	}
	return word & 0xffff;
}

void _storew__ (int value, int addr) 
{
	int waddr;
	int mask = -65536;
	value &= 0xffff;
	if (addr < 0) {
		value = RHW(value);
		mask = RHW(mask);
	}
    waddr = addr & 0x3fffffff;
	MEMORY[waddr] = value | (mask & MEMORY[waddr]);
}

unsigned _lsl__ (unsigned val, int shift) {
	shift &= 31;
	if (shift >= 16) {
		val &= 0xffff;
		val = RHW(val);
		shift -= 16;
	}
	while(shift) {
		val <<= 1;
		shift--;
	}
	return val;
}

unsigned _lsr__ (unsigned val, int shift) {
	shift &= 31;
	if (shift >= 16) {
		val = RHW(val);
		val &= 0xffff;
		shift -= 16;
	}
	while(shift) {
		val >>= 1;
		shift--;
	}
	return val;
}

int _asr__ (int val, int shift) {
	shift &= 31;
	if (shift >= 16) {
		if (val < 0) {
			val = RHW(val);
			val |= 0xffff0000;
		} else {
			val = RHW(val);
			val &= 0xffff;
			
		}
		shift -= 16;
	}
	while(shift) {
		val >>= 1;
		shift--;
	}
	return val;
}