Helper class for doing interrupt request (IRQ) administration. More...

#include <IRQHelper.hh>

Inheritance diagram for openmsx::IRQSource:

Protected Member Functions
	IRQSource (MSXCPU &cpu)

void	raise ()

void	lower ()

Detailed Description

Helper class for doing interrupt request (IRQ) administration.

IRQ is either enabled or disabled; when enabled it contributes one to the CPU IRQ count, when disabled zero. Calling set() in enabled state does nothing; neither does calling reset() in disabled state.

Definition at line 22 of file IRQHelper.hh.

Constructor & Destructor Documentation

◆ IRQSource()

openmsx::IRQSource::IRQSource ( MSXCPU & cpu )

explicitprotected

Definition at line 12 of file IRQHelper.cc.

Member Function Documentation

◆ lower()

void openmsx::IRQSource::lower ( )

protected

Definition at line 22 of file IRQHelper.cc.

References openmsx::MSXCPU::lowerIRQ().

◆ raise()

void openmsx::IRQSource::raise ( )

protected

Definition at line 17 of file IRQHelper.cc.

References openmsx::MSXCPU::raiseIRQ().