public void CPL_WorksAsExpected()
{
// --- Arrange
var m = new Z80TestMachine(RunMode.UntilEnd);
m.InitCode(new byte[]
{
0x3E, 0x81, // LD A,81H
0x2F // CPL
});
// --- Act
m.Run();
// --- Assert
var regs = m.Cpu.Registers;
m.ShouldKeepRegisters(except: "A, F");
m.ShouldKeepMemory();
m.ShouldKeepSFlag();
m.ShouldKeepZFlag();
m.ShouldKeepPVFlag();
m.ShouldKeepCFlag();
regs.HFlag.ShouldBeTrue();
regs.NFlag.ShouldBeTrue();
regs.A.ShouldBe((byte)0x7E);
regs.PC.ShouldBe((ushort)0x0003);
m.Cpu.Tacts.ShouldBe(11L);
}
public void ADD_HL_HL_WorksAsExpected()
{
// --- Arrange
var m = new Z80TestMachine(RunMode.UntilEnd);
m.InitCode(new byte[]
{
0x21, 0x34, 0x12, // LD HL,1234H
0x29 // ADD HL,HL
});
// --- Act
m.Run();
// --- Assert
var regs = m.Cpu.Registers;
m.ShouldKeepRegisters(except: "F, HL");
m.ShouldKeepMemory();
m.ShouldKeepSFlag();
m.ShouldKeepZFlag();
m.ShouldKeepPVFlag();
regs.NFlag.ShouldBeFalse();
regs.CFlag.ShouldBeFalse();
regs.HFlag.ShouldBeFalse();
regs.HL.ShouldBe((ushort)0x2468);
regs.PC.ShouldBe((ushort)0x0004);
m.Cpu.Tacts.ShouldBe(21L);
}