public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
cpu.of = cpu.af = cpu.cf = false;
cpu.flagResult = (op1.get32() & immd);
cpu.flagStatus = SZP;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
Reg op2 = cpu.regs[op2Index];
cpu.zf(cpu.zf());
cpu.cf(((op1.get16() & (1 << (op2.get16() & (16 - 1)))) != 0));
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
cpu.of = cpu.af = cpu.cf = false;
cpu.flagResult = (byte) (op1.get8() ^ op2.get8(cpu));
op1.set8((byte) cpu.flagResult);
cpu.flagStatus = SZP;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
if (op2.get16(cpu) == 0) {
cpu.zf(true);
} else {
cpu.zf(false);
op1.set16(31 - StaticOpcodes.numberOfLeadingZeros(0xFFFF & op2.get16(cpu)));
}
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
cpu.flagOp1 = op1.get32();
cpu.flagOp2 = op2.get32(cpu);
cpu.flagResult = (cpu.flagOp1 - cpu.flagOp2);
op1.set32(cpu.flagResult);
cpu.flagIns = UCodes.SUB32;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op2 = cpu.regs[op2Index];
int add = (cpu.cf() ? 1 : 0);
cpu.flagOp1 = op1.get8(cpu);
cpu.flagOp2 = op2.get8();
cpu.flagResult = (byte) (cpu.flagOp1 - (cpu.flagOp2 + add));
op1.set8(cpu, (byte) cpu.flagResult);
cpu.flagIns = UCodes.SBB8;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
Reg op2 = cpu.regs[op2Index];
cpu.flagOp1 = (byte) op1.get8();
cpu.flagOp2 = (byte) op2.get8();
cpu.flagResult = (byte) (cpu.flagOp1 + cpu.flagOp2);
op1.set8((byte) cpu.flagResult);
cpu.flagIns = UCodes.ADD8;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
Reg op2 = cpu.regs[op2Index];
boolean incf = cpu.cf();
cpu.flagOp1 = op1.get8();
cpu.flagOp2 = op2.get8();
cpu.flagResult = (byte) (cpu.flagOp1 + cpu.flagOp2 + (incf ? 1 : 0));
op1.set8((byte) cpu.flagResult);
cpu.flagIns = UCodes.ADC8;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
boolean incf =
Processor.getCarryFlag(
cpu.flagStatus, cpu.cf, cpu.flagOp1, cpu.flagOp2, cpu.flagResult, cpu.flagIns);
cpu.flagOp1 = op1.get16();
cpu.flagOp2 = immb;
cpu.flagResult = (short) (cpu.flagOp1 + cpu.flagOp2 + (incf ? 1 : 0));
op1.set16((short) cpu.flagResult);
cpu.flagIns = UCodes.ADC16;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
int iop1 = (short) op1.get16();
int iop2 = (short) cpu.r_eax.get16();
int res32 = (((int) (short) iop1) * ((short) iop2));
cpu.r_eax.set16((short) res32);
cpu.r_edx.set16((short) (res32 >> 16));
cpu.setOSZAPC_Logic16(res32);
if (res32 != (short) res32) {
cpu.of(true);
cpu.cf(true);
}
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
Reg op2 = cpu.regs[op2Index];
int bit = 1 << (op2.get16() & (16 - 1));
cpu.cf = (0 != (op1.get16() & bit));
cpu.flagStatus &= NCF;
op1.set16((short) (op1.get16() & ~bit));
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
op1.set16((short) op2.get16(cpu));
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
int tmp = op2.get32(cpu);
if (!cpu.sf()) op1.set32(tmp);
return Branch.None;
}
public Branch execute(Processor cpu) {
Reg op1 = cpu.regs[op1Index];
Segment seg = cpu.segs[segIndex];
op1.set16((short) seg.getSelector());
return Branch.None;
}