Fdc Class Reference

The floppy drive controller. More...

#include <fdc.h>

Public Member Functions
	Fdc ()
tUBYTE	read_status ()
tUBYTE	read_data ()
void	specify ()
void	drvstat ()
void	recalib ()
void	intstat ()
void	seek ()
void	readtrk ()
void	write ()
void	read ()
void	readID ()
void	writeID ()
void	scan ()
void	check_unit ()
int	init_status_regs ()
Sector *	find_sector (tUBYTE *requested_CHRN)
void	cmd_write ()
void	cmd_read ()
void	cmd_readtrk ()
void	cmd_scan ()
int	dsk_load (const char *pchFileName, int drv=0, char chID='A')
void	dsk_eject (int drv=0)
int	motor ()
void	setMotor (int s)
int	flags ()
void	addFlags (int flags)
int	phase ()
int	timeout ()
void	setTimeout (int val)
int	cmdDirection ()
bool	led ()

Private Attributes
int	mTimeout
int	mMotor
bool	mLed
int	mFlags
int	mPhase
int	mByteCount
int	mBufferCount
int	mCmdLength
int	mResLength
int	mCmdDirection
CmdHandler	mCmdHandler
tUBYTE *	pbGPBuffer
tUBYTE *	mBufferPtr
tUBYTE *	mBufferEndPtr
tUBYTE	mCommand [12]
tUBYTE	mResult [8]
Drive	mDriveA
Drive	mDriveB
Drive *	mActiveDrive
Track *	mActiveTrack
tUWORD	mReadStatusDelay
tUWORD	mBytesTransferred
CmdTable	mCmdTable
FILE *	pfileObject

Detailed Description

The floppy drive controller.

Constructor & Destructor Documentation

Fdc

(

)

References Sector::CHRN(), CMD_C, CMD_CODE, CMD_EOT, CMD_H, CMD_N, CMD_PHASE, CMD_R, Fdc::cmd_scan(), CMD_STP, Fdc::cmd_write(), CPU_TO_FDC, Fdc::drvstat(), EXEC_PHASE, FDC_TO_CPU, Sector::flags(), Fdc::intstat(), LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, MAX_CMD_COUNT, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mByteCount, Fdc::mBytesTransferred, Fdc::mCmdDirection, Fdc::mCmdHandler, Fdc::mCmdLength, Fdc::mCmdTable, Fdc::mCommand, Fdc::mFlags, Fdc::mLed, Fdc::mMotor, Fdc::mPhase, Fdc::mReadStatusDelay, Fdc::mResLength, Fdc::mResult, Fdc::mTimeout, OVERRUN_TIMEOUT, Fdc::pbGPBuffer, Fdc::read(), Fdc::readID(), Fdc::readtrk(), Fdc::recalib(), RES_C, RES_N, RES_ST0, RES_ST1, RES_ST2, RESULT_PHASE, Fdc::scan(), SCAN_flag, SCANFAILED_flag, Track::sector(), Track::sectors(), Fdc::seek(), Drive::setAltered(), Sector::setData(), Track::setData(), Track::setSectors(), SKIP_flag, Fdc::specify(), STATUSDRVA_flag, STATUSDRVB_flag, Fdc::write(), and Fdc::writeID().

Member Function Documentation

void addFlags ( int  flags )

inline

References Fdc::flags(), and Fdc::mFlags.

Referenced by Cpc::waitstates(), and Cpc::z80_out_handler().

void check_unit

(

)

References CMD_UNIT, Fdc::mActiveDrive, Fdc::mCommand, Fdc::mDriveA, and Fdc::mDriveB.

Referenced by Fdc::drvstat(), Fdc::read(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::seek(), Fdc::write(), and Fdc::writeID().

void cmd_read ( )

inline

References CMD_C, CMD_CODE, CMD_DTL, CMD_EOT, CMD_N, CMD_R, Sector::data(), Fdc::find_sector(), Sector::flag(), INITIAL_TIMEOUT, LOAD_RESULT_WITH_CHRN, LOAD_RESULT_WITH_STATUS, Fdc::mActiveTrack, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mCommand, Fdc::mFlags, Fdc::mPhase, Fdc::mReadStatusDelay, Fdc::mResult, Fdc::mTimeout, RES_ST0, RES_ST1, RES_ST2, RESULT_PHASE, Track::size(), and SKIP_flag.

Referenced by Fdc::read(), and Fdc::read_data().

void cmd_readtrk ( )

inline

References Sector::CHRN(), CMD_C, CMD_DTL, CMD_N, Drive::currentSector(), Sector::data(), Sector::flag(), INITIAL_TIMEOUT, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mCommand, Fdc::mReadStatusDelay, Fdc::mResult, Fdc::mTimeout, RES_ST1, RES_ST2, Track::sector(), and Track::size().

Referenced by Fdc::read_data(), and Fdc::readtrk().

void cmd_scan ( )

inline

References CMD_C, CMD_EOT, CMD_N, CMD_R, CMD_STP, Sector::data(), Fdc::find_sector(), Sector::flag(), INITIAL_TIMEOUT, LOAD_RESULT_WITH_CHRN, LOAD_RESULT_WITH_STATUS, Fdc::mActiveTrack, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mCommand, Fdc::mFlags, Fdc::mPhase, Fdc::mReadStatusDelay, Fdc::mResult, Fdc::mTimeout, RES_ST0, RES_ST1, RES_ST2, RESULT_PHASE, SCANFAILED_flag, Track::size(), and SKIP_flag.

Referenced by Fdc::Fdc(), and Fdc::scan().

void cmd_write ( )

inline

References CMD_C, CMD_CODE, CMD_DTL, CMD_N, Sector::data(), Fdc::find_sector(), INITIAL_TIMEOUT, LOAD_RESULT_WITH_CHRN, Fdc::mActiveTrack, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mCommand, Fdc::mPhase, Fdc::mReadStatusDelay, Fdc::mResult, Fdc::mTimeout, RES_ST0, RES_ST1, RESULT_PHASE, Sector::setFlag(), and Track::size().

Referenced by Fdc::Fdc(), and Fdc::write().

int cmdDirection ( )

inline

References Fdc::mCmdDirection.

Referenced by Cpc::waitstates().

void drvstat

(

)

References Fdc::check_unit(), CMD_UNIT, Drive::currentTrack(), Fdc::mActiveDrive, Fdc::mCommand, Fdc::mMotor, Fdc::mPhase, Fdc::mResult, RES_ST0, RESULT_PHASE, Drive::tracks(), and Drive::writeProtected().

Referenced by Fdc::Fdc().

void dsk_eject

(

int

drv = 0

)

Todo:

check memory hole !!!

References Track::clear(), Drive::currentTrack(), DSK_SIDEMAX, DSK_TRACKMAX, Fdc::mDriveA, Fdc::mDriveB, Drive::setCurrentTrack(), and Drive::track().

Referenced by Fdc::dsk_load().

int dsk_load	(	const char *	pchFileName,
		int	drv = 0,
		char	chID = 'A'
	)

References Sector::CHRN(), Fdc::dsk_eject(), DSK_SECTORMAX, DSK_SIDEMAX, DSK_TRACKMAX, ERR_DSK_INVALID, ERR_DSK_SECTORS, ERR_DSK_SIDES, ERR_FILE_NOT_FOUND, ERR_OUT_OF_MEMORY, Sector::flags(), Fdc::mDriveA, Fdc::mDriveB, Fdc::pbGPBuffer, Fdc::pfileObject, Track::sector(), Track::set(), Drive::setAltered(), Sector::setData(), Track::setData(), Drive::setRandomDEs(), Track::setSectors(), Drive::setSides(), Track::setSize(), Sector::setSize(), Drive::setTracks(), Drive::sides(), Drive::track(), and Drive::tracks().

Sector * find_sector

(

tUBYTE *

requested_CHRN

)

References Sector::CHRN(), CMD_C, Drive::currentSector(), Sector::flag(), Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mCommand, Fdc::mFlags, Fdc::mResult, Drive::randomDEs(), RES_ST2, RNDDE_flag, Track::sector(), Track::sectors(), and Drive::setCurrentSector().

Referenced by Fdc::cmd_read(), Fdc::cmd_scan(), and Fdc::cmd_write().

int flags ( )

inline

References Fdc::mFlags.

Referenced by Fdc::addFlags().

int init_status_regs

(

)

References CMD_UNIT, Fdc::mActiveDrive, Fdc::mCommand, Fdc::mMotor, Fdc::mResult, RES_ST0, and Drive::tracks().

Referenced by Fdc::read(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::seek(), Fdc::write(), and Fdc::writeID().

void intstat

(

)

References Drive::currentTrack(), Fdc::mDriveA, Fdc::mDriveB, Fdc::mFlags, Fdc::mMotor, Fdc::mPhase, Fdc::mResLength, Fdc::mResult, RES_ST0, RES_ST1, RESULT_PHASE, SEEKDRVA_flag, SEEKDRVB_flag, STATUSDRVA_flag, STATUSDRVB_flag, and Drive::tracks().

Referenced by Fdc::Fdc().

bool led ( )

inline

References Fdc::mLed.

int motor ( )

inline

References Fdc::mMotor.

int phase ( )

inline

References Fdc::mPhase.

Referenced by Cpc::waitstates().

void read

(

)

References Fdc::check_unit(), Fdc::cmd_read(), CMD_UNIT, Drive::currentSide(), Drive::currentTrack(), Drive::flipped(), Fdc::init_status_regs(), LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mCommand, Fdc::mLed, Fdc::mPhase, Fdc::mResult, RES_ST0, RES_ST1, RESULT_PHASE, Track::sectors(), Drive::setCurrentSide(), Drive::sides(), and Drive::track().

Referenced by Fdc::Fdc().

tUBYTE read_data

(

)

References CMD_CODE, CMD_EOT, CMD_PHASE, CMD_R, Fdc::cmd_read(), Fdc::cmd_readtrk(), Drive::currentSector(), EXEC_PHASE, FDC_TO_CPU, LOAD_RESULT_WITH_CHRN, LOAD_RESULT_WITH_STATUS, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mByteCount, Fdc::mCmdDirection, Fdc::mCommand, Fdc::mFlags, Fdc::mLed, Fdc::mPhase, Fdc::mResLength, Fdc::mResult, Fdc::mTimeout, OVERRUN_flag, OVERRUN_TIMEOUT, RES_ST0, RES_ST1, RES_ST2, RESULT_PHASE, RNDDE_flag, SCAN_flag, Track::sectors(), and Drive::setCurrentSector().

Referenced by Cpc::waitstates(), and Cpc::z80_in_handler().

tUBYTE read_status

(

)

References EXEC_PHASE, FDC_TO_CPU, Fdc::mByteCount, Fdc::mCmdDirection, Fdc::mPhase, Fdc::mReadStatusDelay, and RESULT_PHASE.

Referenced by Cpc::z80_in_handler().

void readID

(

)

References Fdc::check_unit(), Sector::CHRN(), CMD_UNIT, Drive::currentSector(), Drive::currentSide(), Drive::currentTrack(), Drive::flipped(), Fdc::init_status_regs(), LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mCommand, Fdc::mLed, Fdc::mPhase, Fdc::mResult, RES_C, RES_ST0, RES_ST1, RESULT_PHASE, Track::sector(), Track::sectors(), Drive::setCurrentSector(), Drive::setCurrentSide(), Drive::sides(), and Drive::track().

Referenced by Fdc::Fdc().

void readtrk

(

)

References Fdc::check_unit(), CMD_R, Fdc::cmd_readtrk(), CMD_UNIT, Drive::currentSide(), Drive::currentTrack(), Drive::flipped(), Fdc::init_status_regs(), LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mCommand, Fdc::mLed, Fdc::mPhase, Fdc::mResult, RES_ST0, RES_ST1, RESULT_PHASE, Track::sectors(), Drive::setCurrentSector(), Drive::setCurrentSide(), Drive::sides(), and Drive::track().

Referenced by Fdc::Fdc().

void recalib

(

)

References CMD_C, Fdc::mCommand, and Fdc::seek().

Referenced by Fdc::Fdc().

void scan

(

)

References Fdc::check_unit(), Fdc::cmd_scan(), CMD_STP, CMD_UNIT, Drive::currentSide(), Drive::currentTrack(), Drive::flipped(), Fdc::init_status_regs(), LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mCommand, Fdc::mFlags, Fdc::mLed, Fdc::mPhase, Fdc::mResult, RES_ST0, RES_ST1, RESULT_PHASE, SCAN_flag, Track::sectors(), Drive::setCurrentSide(), Drive::sides(), and Drive::track().

Referenced by Fdc::Fdc().

void seek

(

)

References Fdc::check_unit(), CMD_C, CMD_PHASE, CMD_UNIT, Drive::currentTrack(), DSK_TRACKMAX, Fdc::init_status_regs(), Fdc::mActiveDrive, Fdc::mCommand, Fdc::mFlags, Fdc::mPhase, SEEKDRVA_flag, SEEKDRVB_flag, and Drive::setCurrentTrack().

Referenced by Fdc::Fdc(), and Fdc::recalib().

void setMotor ( int  s )

inline

References Fdc::mMotor.

Referenced by Cpc::z80_out_handler().

void setTimeout ( int  val )

inline

References Fdc::mTimeout.

Referenced by Cpc::waitstates().

void specify

(

)

References CMD_PHASE, and Fdc::mPhase.

Referenced by Fdc::Fdc().

int timeout ( )

inline

References Fdc::mTimeout.

Referenced by Cpc::waitstates().

void write

(

)

References Fdc::check_unit(), CMD_UNIT, Fdc::cmd_write(), Drive::currentSide(), Drive::currentTrack(), Drive::flipped(), Fdc::init_status_regs(), LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mCommand, Fdc::mLed, Fdc::mPhase, Fdc::mResult, RES_ST0, RES_ST1, RESULT_PHASE, Track::sectors(), Drive::setCurrentSide(), Drive::sides(), Drive::track(), and Drive::writeProtected().

Referenced by Fdc::Fdc().

void writeID

(

)

References Fdc::check_unit(), CMD_H, CMD_UNIT, Drive::currentSide(), Drive::currentTrack(), Drive::flipped(), Fdc::init_status_regs(), INITIAL_TIMEOUT, LOAD_RESULT_WITH_CHRN, Fdc::mActiveDrive, Fdc::mActiveTrack, Fdc::mBufferCount, Fdc::mBufferEndPtr, Fdc::mBufferPtr, Fdc::mCommand, Fdc::mLed, Fdc::mPhase, Fdc::mReadStatusDelay, Fdc::mResult, Fdc::mTimeout, Fdc::pbGPBuffer, RES_ST0, RES_ST1, RESULT_PHASE, Drive::setCurrentSide(), Drive::sides(), Drive::track(), and Drive::writeProtected().

Referenced by Fdc::Fdc().

Member Data Documentation

Drive* mActiveDrive

private

Referenced by Fdc::check_unit(), Fdc::cmd_readtrk(), Fdc::drvstat(), Fdc::Fdc(), Fdc::find_sector(), Fdc::init_status_regs(), Fdc::read(), Fdc::read_data(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::seek(), Fdc::write(), and Fdc::writeID().

Track* mActiveTrack

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::Fdc(), Fdc::find_sector(), Fdc::read(), Fdc::read_data(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::write(), and Fdc::writeID().

int mBufferCount

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::Fdc(), Fdc::read_data(), and Fdc::writeID().

tUBYTE* mBufferEndPtr

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::Fdc(), Fdc::read_data(), and Fdc::writeID().

tUBYTE* mBufferPtr

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::Fdc(), Fdc::read_data(), and Fdc::writeID().

int mByteCount

private

Referenced by Fdc::Fdc(), Fdc::read_data(), and Fdc::read_status().

tUWORD mBytesTransferred

private

Referenced by Fdc::Fdc().

int mCmdDirection

private

Referenced by Fdc::cmdDirection(), Fdc::Fdc(), Fdc::read_data(), and Fdc::read_status().

CmdHandler mCmdHandler

private

Referenced by Fdc::Fdc().

int mCmdLength

private

Referenced by Fdc::Fdc().

CmdTable mCmdTable

private

Referenced by Fdc::Fdc().

tUBYTE mCommand[12]

private

Referenced by Fdc::check_unit(), Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::drvstat(), Fdc::Fdc(), Fdc::find_sector(), Fdc::init_status_regs(), Fdc::read(), Fdc::read_data(), Fdc::readID(), Fdc::readtrk(), Fdc::recalib(), Fdc::scan(), Fdc::seek(), Fdc::write(), and Fdc::writeID().

Drive mDriveA

private

Referenced by Fdc::check_unit(), Fdc::dsk_eject(), Fdc::dsk_load(), and Fdc::intstat().

Drive mDriveB

private

Referenced by Fdc::check_unit(), Fdc::dsk_eject(), Fdc::dsk_load(), and Fdc::intstat().

int mFlags

private

Referenced by Fdc::addFlags(), Fdc::cmd_read(), Fdc::cmd_scan(), Fdc::Fdc(), Fdc::find_sector(), Fdc::flags(), Fdc::intstat(), Fdc::read_data(), Fdc::scan(), and Fdc::seek().

bool mLed

private

Referenced by Fdc::Fdc(), Fdc::led(), Fdc::read(), Fdc::read_data(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::write(), and Fdc::writeID().

int mMotor

private

Referenced by Fdc::drvstat(), Fdc::Fdc(), Fdc::init_status_regs(), Fdc::intstat(), Fdc::motor(), and Fdc::setMotor().

int mPhase

private

Referenced by Fdc::cmd_read(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::drvstat(), Fdc::Fdc(), Fdc::intstat(), Fdc::phase(), Fdc::read(), Fdc::read_data(), Fdc::read_status(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::seek(), Fdc::specify(), Fdc::write(), and Fdc::writeID().

tUWORD mReadStatusDelay

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::Fdc(), Fdc::read_status(), and Fdc::writeID().

int mResLength

private

Referenced by Fdc::Fdc(), Fdc::intstat(), and Fdc::read_data().

tUBYTE mResult[8]

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::drvstat(), Fdc::Fdc(), Fdc::find_sector(), Fdc::init_status_regs(), Fdc::intstat(), Fdc::read(), Fdc::read_data(), Fdc::readID(), Fdc::readtrk(), Fdc::scan(), Fdc::write(), and Fdc::writeID().

int mTimeout

private

Referenced by Fdc::cmd_read(), Fdc::cmd_readtrk(), Fdc::cmd_scan(), Fdc::cmd_write(), Fdc::Fdc(), Fdc::read_data(), Fdc::setTimeout(), Fdc::timeout(), and Fdc::writeID().

tUBYTE* pbGPBuffer

private

Referenced by Fdc::dsk_load(), Fdc::Fdc(), and Fdc::writeID().

FILE* pfileObject

private

Referenced by Fdc::dsk_load().

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

• fdc.h
• fdc.cpp