This class connects to a FDC as a normal DiskDrive and deligates 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	DriveNum { DRIVE_A = 0 , DRIVE_B = 1 , DRIVE_C = 2 , DRIVE_D = 3 , NO_DRIVE = 4 }

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

Public Member Functions
	DriveMultiplexer (DiskDrive *drv[4])

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

DriveNum	getSelectedDrive () const

bool	isDiskInserted () const override
	Is drive ready? More...

bool	isWriteProtected () const override
	Is disk write protected? More...

bool	isDoubleSided () override
	Is disk double sided? More...

bool	isTrack00 () const override
	Head above track 0. More...

void	setSide (bool side) override
	Side select. More...

bool	getSide () const override

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

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

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

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

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. More...

unsigned	getTrackLength () override

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

byte	readTrackByte (int idx) override

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

void	flushTrack () override

bool	diskChanged () override
	Is disk changed? More...

bool	peekDiskChanged () const override

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

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

void	invalidateWd2793ReadTrackQuirk () override

bool	isDiskInserted (DriveNum num) const

bool	diskChanged (DriveNum num)

bool	peekDiskChanged (DriveNum 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 deligates all requests to one of four other DiskDrives.

Definition at line 12 of file DriveMultiplexer.hh.

Member Enumeration Documentation

◆ DriveNum

enum openmsx::DriveMultiplexer::DriveNum

Enumerator
DRIVE_A
DRIVE_B
DRIVE_C
DRIVE_D
NO_DRIVE

Definition at line 15 of file DriveMultiplexer.hh.

Constructor & Destructor Documentation

◆ DriveMultiplexer()

openmsx::DriveMultiplexer::DriveMultiplexer ( DiskDrive * drv[4] )

explicit

Definition at line 6 of file DriveMultiplexer.cc.

References DRIVE_A, DRIVE_B, DRIVE_C, DRIVE_D, and NO_DRIVE.

Member Function Documentation

◆ applyWd2793ReadTrackQuirk()

void openmsx::DriveMultiplexer::applyWd2793ReadTrackQuirk ( )

overridevirtual

See RawTrack::applyWd2793ReadTrackQuirk()

Implements openmsx::DiskDrive.

Definition at line 140 of file DriveMultiplexer.cc.

References openmsx::DiskDrive::applyWd2793ReadTrackQuirk().

◆ diskChanged() [1/2]

bool openmsx::DriveMultiplexer::diskChanged ( )

overridevirtual

Is disk changed?

Implements openmsx::DiskDrive.

Definition at line 115 of file DriveMultiplexer.cc.

References openmsx::DiskDrive::diskChanged().

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 ( DriveNum num )

Definition at line 120 of file DriveMultiplexer.cc.

References openmsx::DiskDrive::diskChanged().

◆ flushTrack()

void openmsx::DriveMultiplexer::flushTrack ( )

overridevirtual

Implements openmsx::DiskDrive.

Definition at line 110 of file DriveMultiplexer.cc.

References openmsx::DiskDrive::flushTrack().

◆ getMotor()

bool openmsx::DriveMultiplexer::getMotor ( ) const

overridevirtual

Returns the previously set motor status.

Implements openmsx::DiskDrive.

Definition at line 75 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 105 of file DriveMultiplexer.cc.

References openmsx::DiskDrive::getNextSector().

◆ getSelectedDrive()

DriveNum 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 54 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