emulib.plugins.cpu

Interface CPUContext

All Superinterfaces:

Context

public interface CPUContext
extends Context

Basic interface for CPU context. The context is used by plug-ins, that are connected to CPU. CPU plug-ins can extend this interface to their own (with some new methods) and then the programmer should make it to be public in order to other plug-ins could have access to it. Extended context may have methods for e.g. connecting devices to CPU, etc.

Method Summary

Modifier and Type	Method and Description
void	clearInterrupt(DeviceContext device, int mask) Cancel sending interrupt signal if it was not handled yet.
int	getCPUFrequency() Get CPU frequency in kHz
boolean	isInterruptSupported() Determine whether this CPU supports interrupts.
boolean	isRawInterruptSupported() Determine whether this CPU supports raw interrupts.
void	signalInterrupt(DeviceContext device, int mask) Send interrupt signal to the CPU.
void	signalRawInterrupt(DeviceContext device, byte[] data) Send raw interrupt signal to the CPU.

Method Detail

isRawInterruptSupported

boolean isRawInterruptSupported()

Determine whether this CPU supports raw interrupts.

Returns:

true, if raw interrupts are supported, false otherwise

signalRawInterrupt

void signalRawInterrupt(DeviceContext device,
                        byte[] data)

Send raw interrupt signal to the CPU. Does nothing if raw interrupts are not supported.

Parameters:

device - Device that interrupts the CPU

data - interrupt data

isInterruptSupported

boolean isInterruptSupported()

Determine whether this CPU supports interrupts.

Returns:

true, if interrupts are supported, false otherwise

signalInterrupt

void signalInterrupt(DeviceContext device,
                     int mask)

Send interrupt signal to the CPU.

Parameters:

device - Device that interrupts the CPU

mask - interrupt mask

clearInterrupt

void clearInterrupt(DeviceContext device,
                    int mask)

Cancel sending interrupt signal if it was not handled yet.

Parameters:

device - Device that wants to cancel the interrupt signal

mask - clear interrupt mask

getCPUFrequency

int getCPUFrequency()

Get CPU frequency in kHz

Returns:

CPU frequency in kHz or 0 if it is not supported