libsidplayfp::Timer Class Reference

#include <timer.h>

Inheritance diagram for libsidplayfp::Timer:

Collaboration diagram for libsidplayfp::Timer:

Public Member Functions
void	setControlRegister (uint8_t cr)
void	syncWithCpu ()
void	wakeUpAfterSyncWithCpu ()
void	reset ()
void	latchLo (uint8_t data)
void	latchHi (uint8_t data)
void	setPbToggle (bool state)
int_least32_t	getState () const
uint_least16_t	getTimer () const
bool	getPb (uint8_t reg) const

Protected Member Functions
	Timer (const char *name, EventScheduler &scheduler, MOS652X &parent)

Protected Attributes
MOS652X &	parent
	Pointer to the MOS6526 which this Timer belongs to.
int_least32_t	state = 0
	CRA/CRB control register / state.

Static Protected Attributes
static constexpr int_least32_t	CIAT_CR_START = 0x01
static constexpr int_least32_t	CIAT_STEP = 0x04
static constexpr int_least32_t	CIAT_CR_ONESHOT = 0x08
static constexpr int_least32_t	CIAT_CR_FLOAD = 0x10
static constexpr int_least32_t	CIAT_PHI2IN = 0x20
static constexpr int_least32_t	CIAT_CR_MASK = CIAT_CR_START | CIAT_CR_ONESHOT | CIAT_CR_FLOAD | CIAT_PHI2IN
static constexpr int_least32_t	CIAT_COUNT2 = 0x100
static constexpr int_least32_t	CIAT_COUNT3 = 0x200
static constexpr int_least32_t	CIAT_ONESHOT0 = 0x08 << 8
static constexpr int_least32_t	CIAT_ONESHOT = 0x08 << 16
static constexpr int_least32_t	CIAT_LOAD1 = 0x10 << 8
static constexpr int_least32_t	CIAT_LOAD = 0x10 << 16
static constexpr int_least32_t	CIAT_OUT = 0x80000000

Detailed Description

This is the base class for the MOS6526 timers.

Constructor & Destructor Documentation

Timer()

libsidplayfp::Timer::Timer ( const char *  name, EventScheduler &  scheduler, MOS652X &  parent  )

inlineprotected

Create a new timer.

Parameters

name	component name
context	event context
parent	the MOS6526 which this Timer belongs to

Member Function Documentation

getPb()

bool libsidplayfp::Timer::getPb ( uint8_t  reg ) const

inline

Get PB6/PB7 Flipflop state.

Parameters

reg	value of the control register

Returns

PB6/PB7 flipflop state

getState()

int_least32_t libsidplayfp::Timer::getState ( ) const

inline

Get current state value.

Returns

current state value

getTimer()

uint_least16_t libsidplayfp::Timer::getTimer ( ) const

inline

Get current timer value.

Returns

current timer value

latchHi()

void libsidplayfp::Timer::latchHi

(

uint8_t

data

)

Set high byte of Timer start value (Latch).

Parameters

data	high byte of latch

latchLo()

void libsidplayfp::Timer::latchLo

(

uint8_t

data

)

Set low byte of Timer start value (Latch).

Parameters

data	low byte of latch

reset()

void libsidplayfp::Timer::reset

(

)

Reset timer.

setControlRegister()

void libsidplayfp::Timer::setControlRegister

(

uint8_t

cr

)

Set CRA/CRB control register.

Parameters

cr	control register value

setPbToggle()

void libsidplayfp::Timer::setPbToggle ( bool  state )

inline

Set PB6/PB7 Flipflop state.

Parameters

state

PB6/PB7 flipflop state

syncWithCpu()

void libsidplayfp::Timer::syncWithCpu

(

)

Perform cycle skipping manually.

Clocks the CIA up to the state it should be in, and stops all events.

wakeUpAfterSyncWithCpu()

void libsidplayfp::Timer::wakeUpAfterSyncWithCpu

(

)

Counterpart of syncWithCpu(), starts the event ticking if it is needed. No clock() call or anything such is permissible here!

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

• timer.h
• timer.cpp