libsidplayfp::InterruptSource Class Reference

#include <interrupt.h>

Inheritance diagram for libsidplayfp::InterruptSource:

Collaboration diagram for libsidplayfp::InterruptSource:

Public Types
enum	{   INTERRUPT_NONE = 0, INTERRUPT_UNDERFLOW_A = 1 << 0, INTERRUPT_UNDERFLOW_B = 1 << 1, INTERRUPT_ALARM = 1 << 2,   INTERRUPT_SP = 1 << 3, INTERRUPT_FLAG = 1 << 4, INTERRUPT_REQUEST = 1 << 7 }

Public Member Functions
virtual void	trigger (uint8_t interruptMask)
virtual uint8_t	clear ()
virtual void	reset ()
void	set (uint8_t interruptMask)

Protected Member Functions
bool	interruptMasked () const
bool	interruptTriggered () const
void	triggerInterrupt ()
void	triggerBug ()
	InterruptSource (EventScheduler &scheduler, MOS6526 &parent)
	Event (const char *const name)
virtual void	event ()=0

Protected Attributes
MOS6526 &	parent
	Pointer to the MOS6526 which this Interrupt belongs to.
EventScheduler &	eventScheduler
	Event scheduler.

Detailed Description

This is the base class for the MOS6526 interrupt sources.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
INTERRUPT_NONE	no interrupt
INTERRUPT_UNDERFLOW_A	underflow Timer A
INTERRUPT_UNDERFLOW_B	underflow Timer B
INTERRUPT_ALARM	alarm clock
INTERRUPT_SP	serial port
INTERRUPT_FLAG	external flag
INTERRUPT_REQUEST	control bit

Constructor & Destructor Documentation

InterruptSource()

libsidplayfp::InterruptSource::InterruptSource ( EventScheduler &  scheduler, MOS6526 &  parent  )

inlineprotected

Create a new InterruptSource.

Parameters

scheduler	event scheduler
parent	the MOS6526 which this Interrupt belongs to

Member Function Documentation

clear()

virtual uint8_t libsidplayfp::InterruptSource::clear ( )

inlinevirtual

Clear interrupt state.

Returns

old interrupt state

Reimplemented in libsidplayfp::InterruptSource6526, and libsidplayfp::InterruptSource8521.

reset()

virtual void libsidplayfp::InterruptSource::reset ( )

inlinevirtual

Clear pending interrupts, but do not signal to CPU we lost them. It is assumed that all components get reset() calls in synchronous manner.

Reimplemented in libsidplayfp::InterruptSource6526.

set()

void libsidplayfp::InterruptSource::set ( uint8_t  interruptMask )

inline

Set interrupt control mask bits.

Parameters

interruptMask

control mask bits

trigger()

virtual void libsidplayfp::InterruptSource::trigger ( uint8_t  interruptMask )

inlinevirtual

Trigger an interrupt.

Parameters

interruptMask

Interrupt flag number

Reimplemented in libsidplayfp::InterruptSource6526, and libsidplayfp::InterruptSource8521.

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

• interrupt.h