Ejemplo n.º 1
0
void
BTC_EdIb(UINT32 op)
{
	UINT32 *out;
	UINT32 src, dst, res, madr;
	UINT32 bit;

	if (op >= 0xc0) {
		CPU_WORKCLOCK(2);
		GET_PCBYTE(src);
		out = reg32_b20[op];
		dst = *out;
		bit = BIT_MAKEBIT32(src);
		if (dst & bit) {
			CPU_FLAGL |= C_FLAG;
		} else {
			CPU_FLAGL &= ~C_FLAG;
		}
		res = dst ^ bit;
		*out = res;
	} else {
		CPU_WORKCLOCK(6);
		madr = calc_ea_dst(op);
		GET_PCBYTE(src);
		dst = cpu_vmemoryread_d(CPU_INST_SEGREG_INDEX, madr);
		bit = BIT_MAKEBIT32(src);
		if (dst & bit) {
			CPU_FLAGL |= C_FLAG;
		} else {
			CPU_FLAGL &= ~C_FLAG;
		}
		res = dst ^ bit;
		cpu_vmemorywrite_d(CPU_INST_SEGREG_INDEX, madr, res);
	}
}
Ejemplo n.º 2
0
void
BTC_EdGd(void)
{
	UINT32 *out;
	UINT32 op, src, dst, res, madr;
	UINT32 bit;

	PREPART_EA_REG32(op, src);
	bit = BIT_MAKEBIT32(src);
	if (op >= 0xc0) {
		CPU_WORKCLOCK(2);
		out = reg32_b20[op];
		dst = *out;
		if (dst & bit) {
			CPU_FLAGL |= C_FLAG;
		} else {
			CPU_FLAGL &= ~C_FLAG;
		}
		res = dst ^ bit;
		*out = res;
	} else {
		CPU_WORKCLOCK(7);
		madr = calc_ea_dst(op);
		madr += BIT_OFFSET32(src);
		dst = cpu_vmemoryread_d(CPU_INST_SEGREG_INDEX, madr);
		if (dst & bit) {
			CPU_FLAGL |= C_FLAG;
		} else {
			CPU_FLAGL &= ~C_FLAG;
		}
		res = dst ^ bit;
		cpu_vmemorywrite_d(CPU_INST_SEGREG_INDEX, madr, res);
	}
}
Ejemplo n.º 3
0
void
ENTER32_IwIb(void)
{
	UINT32 sp, bp;
	UINT32 new_bp;
	UINT32 val;
	UINT16 dimsize;
	UINT8 level;

	GET_PCWORD(dimsize);
	GET_PCBYTE(level);
	level &= 0x1f;

	CPU_SET_PREV_ESP();
	PUSH0_32(CPU_EBP);
	if (level == 0) {			/* enter level=0 */
		CPU_WORKCLOCK(11);
		CPU_EBP = CPU_ESP;
		if (!CPU_STAT_SS32) {
			CPU_SP -= dimsize;
		} else {
			CPU_ESP -= dimsize;
		}
	} else {
		--level;
		if (level == 0) {		/* enter level=1 */
			CPU_WORKCLOCK(15);
			sp = CPU_ESP;
			PUSH0_32(sp);
			CPU_EBP = sp;
			if (CPU_STAT_SS32) {
				CPU_ESP -= dimsize;
			} else {
				CPU_SP -= dimsize;
			}
		} else {			/* enter level=2-31 */
			CPU_WORKCLOCK(12 + level * 4);
			if (CPU_STAT_SS32) {
				bp = CPU_EBP;
				new_bp = CPU_ESP;
				while (level--) {
					bp -= 4;
					CPU_ESP -= 4;
					val = cpu_vmemoryread_d(CPU_SS_INDEX, bp);
					cpu_vmemorywrite_d(CPU_SS_INDEX, CPU_ESP, val);
				}
				REGPUSH0_32(new_bp);
				CPU_EBP = new_bp;
				CPU_ESP -= dimsize;
			} else {
				bp = CPU_BP;
				new_bp = CPU_ESP;
				while (level--) {
					bp -= 4;
					CPU_SP -= 4;
					val = cpu_vmemoryread_d(CPU_SS_INDEX, bp);
					cpu_vmemorywrite_d(CPU_SS_INDEX, CPU_SP, val);
				}
				REGPUSH0_32_16(new_bp);
				CPU_EBP = new_bp;
				CPU_SP -= dimsize;
			}
		}
	}
	CPU_CLEAR_PREV_ESP();
}