openmsx::RawTrack Class Reference

#include <RawTrack.hh>

Classes
struct	Sector

Public Member Functions
	RawTrack (unsigned size=STANDARD_SIZE)
void	clear (unsigned size)
	Clear track data.
unsigned	getLength () const
	Get track length.
void	addIdam (unsigned idx)
uint8_t	read (int idx) const
void	write (int idx, uint8_t val, bool setIdam=false)
int	wrapIndex (int idx) const
std::span< uint8_t >	getRawBuffer ()
std::span< const uint8_t >	getRawBuffer () const
const auto &	getIdamBuffer () const
std::vector< Sector >	decodeAll () const
	Get info on all sectors in this track.
std::optional< Sector >	decodeNextSector (unsigned startIdx) const
	Get the next sector (starting from a certain index).
std::optional< Sector >	decodeSector (uint8_t sectorNum) const
	Get a sector with a specific number.
void	readBlock (int idx, std::span< uint8_t > destination) const
	Like memcpy() but copy from/to circular buffer.
void	writeBlock (int idx, std::span< const uint8_t > source)
uint16_t	calcCrc (int idx, int size) const
	Convenience method to calculate CRC for part of this track.
void	updateCrc (CRC16 &crc, int idx, int size) const
void	applyWd2793ReadTrackQuirk ()
template<typename Archive >
void	serialize (Archive &ar, unsigned version)

Static Public Attributes
static constexpr unsigned	STANDARD_SIZE = 6250

Detailed Description

Definition at line 65 of file RawTrack.hh.

Constructor & Destructor Documentation

RawTrack()

openmsx::RawTrack::RawTrack ( unsigned  size = STANDARD_SIZE )

explicit

Definition at line 13 of file RawTrack.cc.

References clear().

Member Function Documentation

addIdam()

void openmsx::RawTrack::addIdam

(

unsigned

idx

)

Definition at line 24 of file RawTrack.cc.

Referenced by openmsx::DMKDiskImage::readTrack().

applyWd2793ReadTrackQuirk()

void openmsx::RawTrack::applyWd2793ReadTrackQuirk

(

)

Definition at line 190 of file RawTrack.cc.

References read(), and write().

Referenced by openmsx::RealDrive::applyWd2793ReadTrackQuirk().

calcCrc()

uint16_t openmsx::RawTrack::calcCrc	(	int	idx,
		int	size
	)		const

Convenience method to calculate CRC for part of this track.

Definition at line 183 of file RawTrack.cc.

References openmsx::CRC16::getValue(), and updateCrc().

clear()

void openmsx::RawTrack::clear

(

unsigned

size

)

Clear track data.

Also sets the track length.

Definition at line 18 of file RawTrack.cc.

Referenced by RawTrack(), and openmsx::DMKDiskImage::readTrack().

decodeAll()

std::vector< RawTrack::Sector > openmsx::RawTrack::decodeAll

(

)

const

Get info on all sectors in this track.

Definition at line 110 of file RawTrack.cc.

decodeNextSector()

std::optional< RawTrack::Sector > openmsx::RawTrack::decodeNextSector

(

unsigned

startIdx

)

const

Get the next sector (starting from a certain index).

Definition at line 132 of file RawTrack.cc.

Referenced by openmsx::RealDrive::getNextSector().

decodeSector()

std::optional< RawTrack::Sector > openmsx::RawTrack::decodeSector

(

uint8_t

sectorNum

)

const

Get a sector with a specific number.

Note that if a sector with the same number occurs multiple times, this method will always return the same (the first) sector. So don't use it in the implementation of FDC / DiskDrive code.

Definition at line 143 of file RawTrack.cc.

Referenced by openmsx::DMKDiskImage::readSectorImpl(), and openmsx::DMKDiskImage::writeSectorImpl().

getIdamBuffer()

const auto & openmsx::RawTrack::getIdamBuffer ( ) const

inline

Definition at line 119 of file RawTrack.hh.

getLength()

unsigned openmsx::RawTrack::getLength ( ) const

inline

Get track length.

Definition at line 100 of file RawTrack.hh.

Referenced by openmsx::RealDrive::getNextSector(), and openmsx::RealDrive::getTrackLength().

getRawBuffer() [1/2]

std::span< uint8_t > openmsx::RawTrack::getRawBuffer ( )

inline

Definition at line 117 of file RawTrack.hh.

Referenced by openmsx::DMKDiskImage::readTrack().

getRawBuffer() [2/2]

std::span< const uint8_t > openmsx::RawTrack::getRawBuffer ( ) const

inline

Definition at line 118 of file RawTrack.hh.

read()

uint8_t openmsx::RawTrack::read ( int  idx ) const

inline

Definition at line 107 of file RawTrack.hh.

References wrapIndex().

Referenced by applyWd2793ReadTrackQuirk(), readBlock(), and openmsx::RealDrive::readTrackByte().

readBlock()

void openmsx::RawTrack::readBlock	(	int	idx,
		std::span< uint8_t >	destination
	)		const

Like memcpy() but copy from/to circular buffer.

Definition at line 157 of file RawTrack.cc.

References enumerate(), and read().

Referenced by openmsx::DMKDiskImage::readSectorImpl().

serialize()

template<typename Archive >

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

Definition at line 265 of file RawTrack.cc.

updateCrc()

void openmsx::RawTrack::updateCrc	(	CRC16 &	crc,
		int	idx,
		int	size
	)		const

Definition at line 170 of file RawTrack.cc.

References end(), subspan(), openmsx::CRC16::update(), and wrapIndex().

Referenced by calcCrc().

wrapIndex()

int openmsx::RawTrack::wrapIndex ( int  idx ) const

inline

Definition at line 109 of file RawTrack.hh.

Referenced by read(), updateCrc(), and write().

write()

void openmsx::RawTrack::write	(	int	idx,
		uint8_t	val,
		bool	setIdam = false
	)

Definition at line 31 of file RawTrack.cc.

References end(), ranges::lower_bound(), and wrapIndex().

Referenced by applyWd2793ReadTrackQuirk(), writeBlock(), and openmsx::RealDrive::writeTrackByte().

writeBlock()

void openmsx::RawTrack::writeBlock	(	int	idx,
		std::span< const uint8_t >	source
	)

Definition at line 163 of file RawTrack.cc.

References enumerate(), and write().

Referenced by openmsx::DMKDiskImage::writeSectorImpl().

Member Data Documentation

STANDARD_SIZE

constexpr unsigned openmsx::RawTrack::STANDARD_SIZE = 6250

staticconstexpr

Definition at line 74 of file RawTrack.hh.

Referenced by openmsx::DummyDrive::getTrackLength(), openmsx::TC8566AF::TC8566AF(), and openmsx::WD2793::WD2793().

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

• RawTrack.hh
• RawTrack.cc