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) {
cpu.flagOp1 = cpu.r_eax.get32();
cpu.flagOp2 = immd;
cpu.flagResult = (cpu.flagOp1 - cpu.flagOp2);
cpu.flagIns = UCodes.SUB32;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
cpu.flagOp1 = cpu.r_eax.get16();
cpu.flagOp2 = immw;
cpu.flagResult = (short) (cpu.flagOp1 - cpu.flagOp2);
cpu.flagIns = UCodes.SUB16;
cpu.flagStatus = OSZAPC;
return Branch.None;
}
public Branch execute(Processor cpu) {
cpu.flagOp1 = op1.get32(cpu);
cpu.flagResult = (-cpu.flagOp1);
op1.set32(cpu, cpu.flagResult);
cpu.flagIns = UCodes.NEG32;
cpu.flagStatus = OSZAPC;
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) {
cpu.flagOp1 = (byte) op1.get8(cpu);
cpu.flagOp2 = (byte) immb;
cpu.flagResult = (byte) (cpu.flagOp1 - cpu.flagOp2);
cpu.flagIns = UCodes.SUB8;
cpu.flagStatus = OSZAPC;
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) {
cpu.flagOp1 = (short) op1.get16(cpu);
cpu.flagOp2 = (short) immw;
cpu.flagResult = (short) (cpu.flagOp1 - cpu.flagOp2);
op1.set16(cpu, (short) cpu.flagResult);
cpu.flagIns = UCodes.SUB16;
cpu.flagStatus = OSZAPC;
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) {
int shift = cpu.r_cl.get8() & 0x1f;
if (shift != 0) {
if (shift <= 16) {
cpu.flagStatus = OSZPC;
} else {
cpu.flagStatus = SZP;
cpu.of = false;
cpu.cf = false;
}
cpu.af = false;
cpu.flagOp1 = op1.get32(cpu);
cpu.flagOp2 = shift;
cpu.flagResult = (cpu.flagOp1 << cpu.flagOp2);
op1.set32(cpu, cpu.flagResult);
cpu.flagIns = UCodes.SHL32;
}
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) {
int shift = cpu.r_cl.get8() & (16 - 1);
int reg0 = 0xFFFF & op1.get16(cpu);
int res = (reg0 << shift) | (reg0 >>> (16 - shift));
op1.set16(cpu, (short) res);
boolean bit0 = (res & 1) != 0;
boolean bit31 = (res & (1 << (16 - 1))) != 0;
if ((0x1F & cpu.r_cl.get8()) > 0) {
cpu.cf = bit0;
cpu.of = bit0 ^ bit31;
cpu.flagStatus &= NOFCF;
}
return Branch.None;
}
public Branch execute(Processor cpu) {
int shift = immb & (32 - 1);
int reg0 = op1.get32(cpu);
int res = (reg0 >>> shift) | (reg0 << (32 - shift));
op1.set32(cpu, res);
boolean bit30 = (res & (1 << (32 - 2))) != 0;
boolean bit31 = (res & (1 << (32 - 1))) != 0;
if (shift > 0) {
cpu.cf = bit31;
cpu.of = bit30 ^ bit31;
cpu.flagStatus &= NOFCF;
}
return Branch.None;
}
public Branch execute(Processor cpu) {
cpu.of = cpu.af = cpu.cf = false;
cpu.flagResult = (op1.get32(cpu) & immd);
cpu.flagStatus = SZP;
return Branch.None;
}
