openmsx::Y8950 Class Reference

#include <Y8950.hh>

Inheritance diagram for openmsx::Y8950:

Collaboration diagram for openmsx::Y8950:

Public Types
enum class	EnvelopeState {   ATTACK , DECAY , SUSTAIN , RELEASE ,   FINISH }
using	EnvPhaseIndex = FixedPoint< EG_DP_BITS - EG_BITS >

Public Member Functions
	Y8950 (const std::string &name, const DeviceConfig &config, unsigned sampleRam, EmuTime::param time, MSXAudio &audio)
	~Y8950 ()
void	setEnabled (bool enabled, EmuTime::param time)
void	clearRam ()
void	reset (EmuTime::param time)
void	writeReg (uint8_t rg, uint8_t data, EmuTime::param time)
uint8_t	readReg (uint8_t rg, EmuTime::param time)
uint8_t	peekReg (uint8_t rg, EmuTime::param time) const
uint8_t	readStatus (EmuTime::param time) const
uint8_t	peekStatus (EmuTime::param time) const
void	setStatus (uint8_t flags)
void	resetStatus (uint8_t flags)
uint8_t	peekRawStatus () const
template<typename Archive >
void	serialize (Archive &ar, unsigned version)

Static Public Attributes
static constexpr int	CLOCK_FREQ = 3579545
static constexpr int	CLOCK_FREQ_DIV = 72
static constexpr int	R04_ST1 = 0x01
static constexpr int	R04_ST2 = 0x02
static constexpr int	R04_MASK_BUF_RDY = 0x08
static constexpr int	R04_MASK_EOS = 0x10
static constexpr int	R04_MASK_T2 = 0x20
static constexpr int	R04_MASK_T1 = 0x40
static constexpr int	R04_IRQ_RESET = 0x80
static constexpr int	STATUS_PCM_BSY = 0x01
static constexpr int	STATUS_EOS = R04_MASK_EOS
static constexpr int	STATUS_BUF_RDY = R04_MASK_BUF_RDY
static constexpr int	STATUS_T2 = R04_MASK_T2
static constexpr int	STATUS_T1 = R04_MASK_T1
static constexpr int	EG_BITS = 9
static constexpr int	EG_DP_BITS = 23

Detailed Description

Definition at line 27 of file Y8950.hh.

Member Typedef Documentation

EnvPhaseIndex

using openmsx::Y8950::EnvPhaseIndex = FixedPoint<EG_DP_BITS - EG_BITS>

Definition at line 109 of file Y8950.hh.

Member Enumeration Documentation

EnvelopeState

enum class openmsx::Y8950::EnvelopeState

strong

Enumerator
ATTACK
DECAY
SUSTAIN
RELEASE
FINISH

Definition at line 111 of file Y8950.hh.

Constructor & Destructor Documentation

Y8950()

openmsx::Y8950::Y8950	(	const std::string &	name,
		const DeviceConfig &	config,
		unsigned	sampleRam,
		EmuTime::param	time,
		MSXAudio &	audio
	)

Definition at line 484 of file Y8950.cc.

References openmsx::SoundDevice::registerSound(), reset(), and xrange().

~Y8950()

openmsx::Y8950::~Y8950

(

)

Definition at line 547 of file Y8950.cc.

References openmsx::SoundDevice::unregisterSound().

Member Function Documentation

clearRam()

void openmsx::Y8950::clearRam

(

)

Definition at line 552 of file Y8950.cc.

References openmsx::Y8950Adpcm::clearRam().

Referenced by openmsx::MSXAudio::powerUp().

peekRawStatus()

uint8_t openmsx::Y8950::peekRawStatus

(

)

const

Definition at line 1214 of file Y8950.cc.

peekReg()

uint8_t openmsx::Y8950::peekReg	(	uint8_t	rg,
		EmuTime::param	time
	)		const

Definition at line 1159 of file Y8950.cc.

References openmsx::Y8950KeyboardConnector::peek(), openmsx::Y8950Adpcm::peekReg(), and openmsx::Y8950Periphery::read().

Referenced by openmsx::MSXAudio::peekIO(), and readReg().

peekStatus()

uint8_t openmsx::Y8950::peekStatus

(

EmuTime::param

time

)

const

Definition at line 1187 of file Y8950.cc.

Referenced by openmsx::MSXAudio::peekIO(), and readStatus().

readReg()

uint8_t openmsx::Y8950::readReg	(	uint8_t	rg,
		EmuTime::param	time
	)

Definition at line 1144 of file Y8950.cc.

References peekReg(), openmsx::Y8950Adpcm::readReg(), and openmsx::SoundDevice::updateStream().

Referenced by openmsx::MSXAudio::readIO().

readStatus()

uint8_t openmsx::Y8950::readStatus

(

EmuTime::param

time

)

const

Definition at line 1182 of file Y8950.cc.

References peekStatus().

Referenced by openmsx::MSXAudio::readIO().

reset()

void openmsx::Y8950::reset

(

EmuTime::param

time

)

Definition at line 558 of file Y8950.cc.

References ranges::fill(), openmsx::IntHelper< SOURCE >::reset(), openmsx::Y8950Adpcm::reset(), and openmsx::SoundDevice::updateStream().

Referenced by openmsx::MSXAudio::reset(), and Y8950().

resetStatus()

void openmsx::Y8950::resetStatus

(

uint8_t

flags

)

Definition at line 1206 of file Y8950.cc.

References openmsx::IntHelper< SOURCE >::reset().

Referenced by openmsx::Y8950Adpcm::writeReg(), and writeReg().

serialize()

template<typename Archive >

void openmsx::Y8950::serialize	(	Archive &	ar,
		unsigned	version
	)

Definition at line 1309 of file Y8950.cc.

References openmsx::MSXMotherBoard::getCurrentTime(), and writeReg().

setEnabled()

void openmsx::Y8950::setEnabled	(	bool	enabled,
		EmuTime::param	time
	)

Definition at line 782 of file Y8950.cc.

References openmsx::SoundDevice::updateStream().

Referenced by openmsx::ToshibaAudioPeriphery::setSPOFF(), openmsx::MusicModulePeriphery::write(), and openmsx::PanasonicAudioPeriphery::write().

setStatus()

void openmsx::Y8950::setStatus

(

uint8_t

flags

)

Definition at line 1198 of file Y8950.cc.

References openmsx::IntHelper< SOURCE >::set().

Referenced by openmsx::Y8950Adpcm::reset(), openmsx::Y8950Adpcm::resetStatus(), and openmsx::Y8950Adpcm::writeReg().

writeReg()

void openmsx::Y8950::writeReg	(	uint8_t	rg,
		uint8_t	data,
		EmuTime::param	time
	)

Definition at line 905 of file Y8950.cc.

References Math::clipToInt16(), R04_IRQ_RESET, R04_ST1, R04_ST2, openmsx::Y8950Adpcm::resetStatus(), resetStatus(), openmsx::Y8950Periphery::setSPOFF(), openmsx::SoundDevice::updateStream(), openmsx::Y8950KeyboardConnector::write(), openmsx::Y8950Periphery::write(), openmsx::DACSound16S::writeDAC(), and openmsx::Y8950Adpcm::writeReg().

Referenced by serialize(), and openmsx::MSXAudio::writeIO().

Member Data Documentation

CLOCK_FREQ

constexpr int openmsx::Y8950::CLOCK_FREQ = 3579545

staticconstexpr

Definition at line 30 of file Y8950.hh.

CLOCK_FREQ_DIV

constexpr int openmsx::Y8950::CLOCK_FREQ_DIV = 72

staticconstexpr

Definition at line 31 of file Y8950.hh.

EG_BITS

constexpr int openmsx::Y8950::EG_BITS = 9

staticconstexpr

Definition at line 105 of file Y8950.hh.

EG_DP_BITS

constexpr int openmsx::Y8950::EG_DP_BITS = 23

staticconstexpr

Definition at line 108 of file Y8950.hh.

R04_IRQ_RESET

constexpr int openmsx::Y8950::R04_IRQ_RESET = 0x80

staticconstexpr

Definition at line 49 of file Y8950.hh.

Referenced by writeReg().

R04_MASK_BUF_RDY

constexpr int openmsx::Y8950::R04_MASK_BUF_RDY = 0x08

staticconstexpr

Definition at line 41 of file Y8950.hh.

R04_MASK_EOS

constexpr int openmsx::Y8950::R04_MASK_EOS = 0x10

staticconstexpr

Definition at line 43 of file Y8950.hh.

R04_MASK_T1

constexpr int openmsx::Y8950::R04_MASK_T1 = 0x40

staticconstexpr

Definition at line 47 of file Y8950.hh.

R04_MASK_T2

constexpr int openmsx::Y8950::R04_MASK_T2 = 0x20

staticconstexpr

Definition at line 45 of file Y8950.hh.

R04_ST1

constexpr int openmsx::Y8950::R04_ST1 = 0x01

staticconstexpr

Definition at line 35 of file Y8950.hh.

Referenced by writeReg().

R04_ST2

constexpr int openmsx::Y8950::R04_ST2 = 0x02

staticconstexpr

Definition at line 37 of file Y8950.hh.

Referenced by writeReg().

STATUS_BUF_RDY

constexpr int openmsx::Y8950::STATUS_BUF_RDY = R04_MASK_BUF_RDY

staticconstexpr

Definition at line 54 of file Y8950.hh.

Referenced by openmsx::Y8950Adpcm::reset(), openmsx::Y8950Adpcm::resetStatus(), and openmsx::Y8950Adpcm::writeReg().

STATUS_EOS

constexpr int openmsx::Y8950::STATUS_EOS = R04_MASK_EOS

staticconstexpr

Definition at line 53 of file Y8950.hh.

STATUS_PCM_BSY

constexpr int openmsx::Y8950::STATUS_PCM_BSY = 0x01

staticconstexpr

Definition at line 52 of file Y8950.hh.

Referenced by openmsx::Y8950Adpcm::writeReg().

STATUS_T1

constexpr int openmsx::Y8950::STATUS_T1 = R04_MASK_T1

staticconstexpr

Definition at line 56 of file Y8950.hh.

STATUS_T2

constexpr int openmsx::Y8950::STATUS_T2 = R04_MASK_T2

staticconstexpr

Definition at line 55 of file Y8950.hh.

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

• Y8950.hh
• Y8950.cc