openmsx::DummyAY8910Periphery Class Reference

#include <DummyAY8910Periphery.hh>

Inheritance diagram for openmsx::DummyAY8910Periphery:

Collaboration diagram for openmsx::DummyAY8910Periphery:

Public Member Functions
byte	readA (EmuTime::param) override
	Reads the state of the peripheral on port A.
byte	readB (EmuTime::param) override
	Similar to readA, but reads port B.
void	writeA (byte, EmuTime::param) override
	Writes to the peripheral on port A.
void	writeB (byte, EmuTime::param) override
	Similar to writeA, but writes port B.

Static Public Member Functions
static DummyAY8910Periphery &	instance ()

Additional Inherited Members
Protected Member Functions inherited from openmsx::AY8910Periphery
	AY8910Periphery ()=default
	~AY8910Periphery ()=default

Detailed Description

Definition at line 8 of file DummyAY8910Periphery.hh.

Member Function Documentation

instance()

static DummyAY8910Periphery & openmsx::DummyAY8910Periphery::instance ( )

inlinestatic

Definition at line 11 of file DummyAY8910Periphery.hh.

readA()

byte openmsx::DummyAY8910Periphery::readA ( EmuTime::param  time )

inlineoverridevirtual

Reads the state of the peripheral on port A.

Since the AY8910 doesn't have control lines for the I/O ports, a peripheral is not aware that it is read, which means that "peek" and "read" are equivalent.

Parameters

time	The moment in time the peripheral's state is read. On subsequent calls, the time will always be increasing.

Returns

the value read; unconnected bits should be 1

Reimplemented from openmsx::AY8910Periphery.

Definition at line 17 of file DummyAY8910Periphery.hh.

readB()

byte openmsx::DummyAY8910Periphery::readB ( EmuTime::param  time )

inlineoverridevirtual

Similar to readA, but reads port B.

Reimplemented from openmsx::AY8910Periphery.

Definition at line 18 of file DummyAY8910Periphery.hh.

writeA()

void openmsx::DummyAY8910Periphery::writeA ( byte  value, EmuTime::param  time  )

inlineoverridevirtual

Writes to the peripheral on port A.

Parameters

value	The value to write.
time	The moment in time the value is written. On subsequent calls, the time will always be increasing.

Reimplemented from openmsx::AY8910Periphery.

Definition at line 19 of file DummyAY8910Periphery.hh.

writeB()

void openmsx::DummyAY8910Periphery::writeB ( byte  value, EmuTime::param  time  )

inlineoverridevirtual

Similar to writeA, but writes port B.

Reimplemented from openmsx::AY8910Periphery.

Definition at line 20 of file DummyAY8910Periphery.hh.

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The documentation for this class was generated from the following file:

• DummyAY8910Periphery.hh