Z80TestHarness Class

Definition

Base class for a Z80 emulator test harness. Implement this class to use it with the test suites.

public abstract class Z80TestHarness : TestHarness<Cycle>

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Constructors

Name	Description
Z80TestHarness()

Properties

Name	Description
FlagC	Gets or sets the carry flag, C.
FlagH	Gets or sets the half-carry flag, H.
FlagN	Gets or sets the add/subtract flag, N.
FlagPV	Gets or sets the parity/overflow flag, P/V.
FlagS	Gets or sets the sign flag, S.
FlagX	Gets or sets the undocumented X flag, bit 3 of the F register.
FlagY	Gets or sets the undocumented Y flag, bit 5 of the F register.
FlagZ	Gets or sets the zero flag, Z.
HALTAdvancesPC	Does the HALT instruction advance PC?
Halted	Gets or sets whether the CPU is in the halted state.
IFF1	Gets or sets the IFF1 interrupt flip-flop.
IFF2	Gets or sets the IFF2 interrupt flip-flop.
IM	Gets or sets the interrupt mode.
Interrupt	Gets or sets whether the external interrupt line is asserted.
IOReader	Gets the IO reader implementation.
IOWriter	Gets the IO writer implementation.
NextRegisterWrites	Gets the Next registers written to, in the order they were written. Z80N only; a Z80 never writes to one.
RegisterA	Gets or sets the A register.
RegisterAF	Gets or sets the AF register pair.
RegisterB	Gets or sets the B register.
RegisterBC	Gets or sets the BC register pair.
RegisterC	Gets or sets the C register.
RegisterD	Gets or sets the D register.
RegisterDE	Gets or sets the DE register pair.
RegisterE	Gets or sets the E register.
RegisterF	Gets or sets the F register.
RegisterH	Gets or sets the H register.
RegisterHL	Gets or sets the HL register pair.
RegisterI	Gets or sets the I register.
RegisterIX	Gets or sets the IX register pair.
RegisterIXH	Gets or sets the IXH register.
RegisterIXL	Gets or sets the IXL register.
RegisterIY	Gets or sets the IY register pair.
RegisterIYH	Gets or sets the IYH register.
RegisterIYL	Gets or sets the IYL register.
RegisterL	Gets or sets the L register.
RegisterPC	Gets or sets the PC register.
RegisterQ	Gets or sets the internal Q register.
RegisterR	Gets or sets the R register.
RegisterSP	Gets or sets the SP register.
RegisterWZ	Gets or sets the internal WZ register, sometimes called MEMPTR.
RomArea	Gets or sets the ROM area in memory. Memory writes in this area by the emulator should be ignored.
ShadowRegisterAF	Gets or sets the AF' register pair.
ShadowRegisterBC	Gets or sets the BC' register pair.
ShadowRegisterDE	Gets or sets the DE' register pair.
ShadowRegisterHL	Gets or sets the HL' register pair.

Methods

Name	Description
ExecuteInstruction()	Executes a single instruction.
ExecuteInstruction(TextWriter)	Executes a single instruction with debug output.
OnRomAreaChanged()	Called when RomArea changes. Override to update your emulator with the ROM area.
Reset()	Resets the test harness state.
SetIO<TIO>(TIO)	Sets both the IO reader and writer to the same implementation.
WriteNextRegister(Byte, Byte)	Records a write to a Next register. Z80N emulators should call this when they perform one. The register number is used as the port of the IOEvent.