This class connects to a FDC as a normal DiskDrive and delegates all requests to one of four other DiskDrives. More...

#include <DriveMultiplexer.hh>

Inheritance diagram for openmsx::DriveMultiplexer:

Collaboration diagram for openmsx::DriveMultiplexer:

Public Types
enum class	Drive { A , B , C , D , NONE , NUM }

Public Types inherited from openmsx::DiskDrive
enum class	TrackMode { NORMAL , YAMAHA_FD_03 }

Public Member Functions
	DriveMultiplexer (std::span< std::unique_ptr< DiskDrive >, 4 > drv)

void	selectDrive (Drive num, EmuTime::param time)

Drive	getSelectedDrive () const

bool	isDiskInserted () const override
	Is drive ready?

bool	isWriteProtected () const override
	Is disk write protected?

bool	isDoubleSided () override
	Is disk double sided?

bool	isTrack00 () const override
	Head above track 0.

void	setSide (bool side) override
	Side select.

bool	getSide () const override

void	step (bool direction, EmuTime::param time) override
	Step head.

void	setMotor (bool status, EmuTime::param time) override
	Set motor on/off.

bool	getMotor () const override
	Returns the previously set motor status.

bool	indexPulse (EmuTime::param time) override
	Gets the state of the index pulse.

EmuTime	getTimeTillIndexPulse (EmuTime::param time, int count) override
	Return the time till the start of the next index pulse When there is no disk in the drive or when the disk is not spinning, this function returns the current time.

unsigned	getTrackLength () override

void	writeTrackByte (int idx, uint8_t val, bool addIdam) override

uint8_t	readTrackByte (int idx) override

EmuTime	getNextSector (EmuTime::param time, RawTrack::Sector &sector) override

void	flushTrack () override

bool	diskChanged () override
	Is disk changed?

bool	peekDiskChanged () const override

bool	isDummyDrive () const override
	Is there a dummy (unconnected) drive?

void	applyWd2793ReadTrackQuirk () override
	See RawTrack::applyWd2793ReadTrackQuirk()

void	invalidateWd2793ReadTrackQuirk () override

bool	isDiskInserted (Drive num) const

bool	diskChanged (Drive num)

bool	peekDiskChanged (Drive num) const

template<typename Archive >
void	serialize (Archive &ar, unsigned version)

Public Member Functions inherited from openmsx::DiskDrive
virtual	~DiskDrive ()=default

Additional Inherited Members
Static Public Attributes inherited from openmsx::DiskDrive
static constexpr unsigned	ROTATIONS_PER_SECOND = 5

Detailed Description

This class connects to a FDC as a normal DiskDrive and delegates all requests to one of four other DiskDrives.

Definition at line 15 of file DriveMultiplexer.hh.

Member Enumeration Documentation

◆ Drive

enum class openmsx::DriveMultiplexer::Drive

strong

Enumerator
A
B
C
D
NONE
NUM

Definition at line 18 of file DriveMultiplexer.hh.

Constructor & Destructor Documentation

◆ DriveMultiplexer()

openmsx::DriveMultiplexer::DriveMultiplexer ( std::span< std::unique_ptr< DiskDrive >, 4 > drv )

explicit

Definition at line 6 of file DriveMultiplexer.cc.

References A, B, C, D, and NONE.

Member Function Documentation

◆ applyWd2793ReadTrackQuirk()

void openmsx::DriveMultiplexer::applyWd2793ReadTrackQuirk ( )

overridevirtual

See RawTrack::applyWd2793ReadTrackQuirk()

Implements openmsx::DiskDrive.

Definition at line 137 of file DriveMultiplexer.cc.

◆ diskChanged() [1/2]

bool openmsx::DriveMultiplexer::diskChanged ( )

overridevirtual

Is disk changed?

Implements openmsx::DiskDrive.

Definition at line 112 of file DriveMultiplexer.cc.

Referenced by openmsx::CanonFDC::readMem(), openmsx::PhilipsFDC::readMem(), openmsx::ToshibaFDC::readMem(), openmsx::YamahaFDC::readMem(), and openmsx::YamahaFDC::writeMem().

◆ diskChanged() [2/2]

bool openmsx::DriveMultiplexer::diskChanged ( Drive num )

Definition at line 117 of file DriveMultiplexer.cc.

◆ flushTrack()

void openmsx::DriveMultiplexer::flushTrack ( )

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 107 of file DriveMultiplexer.cc.

◆ getMotor()

bool openmsx::DriveMultiplexer::getMotor ( ) const

overridevirtual

Returns the previously set motor status.

Implements openmsx::DiskDrive.

Definition at line 72 of file DriveMultiplexer.cc.

Referenced by openmsx::ToshibaFDC::peekMem().

◆ getNextSector()

EmuTime openmsx::DriveMultiplexer::getNextSector	(	EmuTime::param	time,
		RawTrack::Sector &	sector
	)

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 102 of file DriveMultiplexer.cc.

◆ getSelectedDrive()

Drive openmsx::DriveMultiplexer::getSelectedDrive ( ) const

inline

Definition at line 27 of file DriveMultiplexer.hh.

Referenced by openmsx::ToshibaFDC::peekMem().

◆ getSide()

bool openmsx::DriveMultiplexer::getSide ( ) const

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 51 of file DriveMultiplexer.cc.

Referenced by openmsx::ToshibaFDC::peekMem().

◆ getTimeTillIndexPulse()

EmuTime openmsx::DriveMultiplexer::getTimeTillIndexPulse	(	EmuTime::param	time,
		int	count
	)

overridevirtual

Return the time till the start of the next index pulse When there is no disk in the drive or when the disk is not spinning, this function returns the current time.

Parameters

time	The current time
count	Number of required index pulses.

Implements openmsx::DiskDrive.

Definition at line 82 of file DriveMultiplexer.cc.

◆ getTrackLength()

unsigned openmsx::DriveMultiplexer::getTrackLength ( )

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 87 of file DriveMultiplexer.cc.

◆ indexPulse()

bool openmsx::DriveMultiplexer::indexPulse ( EmuTime::param time )

overridevirtual

Gets the state of the index pulse.

Parameters

time	The moment in emulated time to get the pulse state for.

Implements openmsx::DiskDrive.

Definition at line 77 of file DriveMultiplexer.cc.

◆ invalidateWd2793ReadTrackQuirk()

void openmsx::DriveMultiplexer::invalidateWd2793ReadTrackQuirk ( )

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 142 of file DriveMultiplexer.cc.

◆ isDiskInserted() [1/2]

bool openmsx::DriveMultiplexer::isDiskInserted ( ) const

overridevirtual

Is drive ready?

Implements openmsx::DiskDrive.

Definition at line 25 of file DriveMultiplexer.cc.

Referenced by openmsx::YamahaFDC::peekMem(), and openmsx::YamahaFDC::readMem().

◆ isDiskInserted() [2/2]

bool openmsx::DriveMultiplexer::isDiskInserted ( Drive num ) const

Definition at line 30 of file DriveMultiplexer.cc.

◆ isDoubleSided()

bool openmsx::DriveMultiplexer::isDoubleSided ( )

overridevirtual

Is disk double sided?

Implements openmsx::DiskDrive.

Definition at line 40 of file DriveMultiplexer.cc.

◆ isDummyDrive()

bool openmsx::DriveMultiplexer::isDummyDrive ( ) const

overridevirtual

Is there a dummy (unconnected) drive?

Implements openmsx::DiskDrive.

Definition at line 132 of file DriveMultiplexer.cc.

◆ isTrack00()

bool openmsx::DriveMultiplexer::isTrack00 ( ) const

overridevirtual

Head above track 0.

Implements openmsx::DiskDrive.

Definition at line 61 of file DriveMultiplexer.cc.

◆ isWriteProtected()

bool openmsx::DriveMultiplexer::isWriteProtected ( ) const

overridevirtual

Is disk write protected?

Implements openmsx::DiskDrive.

Definition at line 35 of file DriveMultiplexer.cc.

◆ peekDiskChanged() [1/2]

bool openmsx::DriveMultiplexer::peekDiskChanged ( ) const

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 122 of file DriveMultiplexer.cc.

Referenced by openmsx::CanonFDC::peekMem(), openmsx::PhilipsFDC::peekMem(), openmsx::ToshibaFDC::peekMem(), openmsx::YamahaFDC::peekMem(), and openmsx::YamahaFDC::readMem().

◆ peekDiskChanged() [2/2]

bool openmsx::DriveMultiplexer::peekDiskChanged ( Drive num ) const

Definition at line 127 of file DriveMultiplexer.cc.

◆ readTrackByte()

uint8_t openmsx::DriveMultiplexer::readTrackByte ( int idx )

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 97 of file DriveMultiplexer.cc.

◆ selectDrive()

void openmsx::DriveMultiplexer::selectDrive	(	Drive	num,
		EmuTime::param	time
	)

Definition at line 15 of file DriveMultiplexer.cc.

Referenced by openmsx::AVTFDC::writeIO(), openmsx::MicrosolFDC::writeIO(), openmsx::SVIFDC::writeIO(), openmsx::CanonFDC::writeMem(), openmsx::NationalFDC::writeMem(), openmsx::PhilipsFDC::writeMem(), openmsx::SanyoFDC::writeMem(), openmsx::SpectravideoFDC::writeMem(), openmsx::ToshibaFDC::writeMem(), openmsx::VictorFDC::writeMem(), and openmsx::YamahaFDC::writeMem().

◆ serialize()

template<typename Archive >

void openmsx::DriveMultiplexer::serialize	(	Archive &	ar,
		unsigned	version
	)

Definition at line 158 of file DriveMultiplexer.cc.

◆ setMotor()

void openmsx::DriveMultiplexer::setMotor	(	bool	status,
		EmuTime::param	time
	)

overridevirtual

Set motor on/off.

Parameters

status	false = off, true = on.
time	The moment in emulated time this action takes place.

Implements openmsx::DiskDrive.

Definition at line 66 of file DriveMultiplexer.cc.

Referenced by openmsx::AVTFDC::writeIO(), openmsx::MicrosolFDC::writeIO(), openmsx::SVIFDC::writeIO(), openmsx::CanonFDC::writeMem(), openmsx::NationalFDC::writeMem(), openmsx::PhilipsFDC::writeMem(), openmsx::SanyoFDC::writeMem(), openmsx::SpectravideoFDC::writeMem(), openmsx::ToshibaFDC::writeMem(), openmsx::VictorFDC::writeMem(), and openmsx::YamahaFDC::writeMem().

◆ setSide()

void openmsx::DriveMultiplexer::setSide ( bool side )

overridevirtual

Side select.

Parameters

side	false = side 0, true = side 1.

Implements openmsx::DiskDrive.

Definition at line 45 of file DriveMultiplexer.cc.

Referenced by openmsx::AVTFDC::writeIO(), openmsx::MicrosolFDC::writeIO(), openmsx::SVIFDC::writeIO(), openmsx::CanonFDC::writeMem(), openmsx::NationalFDC::writeMem(), openmsx::PhilipsFDC::writeMem(), openmsx::SanyoFDC::writeMem(), openmsx::SpectravideoFDC::writeMem(), openmsx::ToshibaFDC::writeMem(), openmsx::VictorFDC::writeMem(), and openmsx::YamahaFDC::writeMem().

◆ step()

void openmsx::DriveMultiplexer::step	(	bool	direction,
		EmuTime::param	time
	)

overridevirtual

Step head.

Parameters

direction	false = out, true = in.
time	The moment in emulated time this action takes place.

Implements openmsx::DiskDrive.

Definition at line 56 of file DriveMultiplexer.cc.

◆ writeTrackByte()

void openmsx::DriveMultiplexer::writeTrackByte	(	int	idx,
		uint8_t	val,
		bool	addIdam
	)

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 92 of file DriveMultiplexer.cc.

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

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Drive

Constructor & Destructor Documentation

◆ DriveMultiplexer()

Member Function Documentation

◆ applyWd2793ReadTrackQuirk()

◆ diskChanged() [1/2]

◆ diskChanged() [2/2]

◆ flushTrack()

◆ getMotor()

◆ getNextSector()

◆ getSelectedDrive()

◆ getSide()

◆ getTimeTillIndexPulse()

◆ getTrackLength()

◆ indexPulse()

◆ invalidateWd2793ReadTrackQuirk()

◆ isDiskInserted() [1/2]

◆ isDiskInserted() [2/2]

◆ isDoubleSided()

◆ isDummyDrive()

◆ isTrack00()

◆ isWriteProtected()

◆ peekDiskChanged() [1/2]

◆ peekDiskChanged() [2/2]

◆ readTrackByte()

◆ selectDrive()

◆ serialize()

◆ setMotor()

◆ setSide()

◆ step()

◆ writeTrackByte()