digs.invaders
Interface CpuBoard

All Known Implementing Classes:

InvadersBoard

public interface CpuBoard

Method Summary

int	in(int port) Read from port
void	out(int port, int value) Write to port
int	read16(int address) Read a word
int	read16arg(int address) Read a word
int	read8(int address) Read a byte
int	read8arg(int address) Read a byte.
int	read8opc(int address) Read an opcode byte
void	write16(int address, int data) Write a word
void	write16fast(int address, int data) Write a word When a Cpu calls this method, a speed up can be achieved.
void	write8(int address, int data) Write a byte
void	write8fast(int address, int data) Write a byte When a Cpu calls this method, a speed up can be achieved.

Method Detail

write8

void write8(int address,
            int data)

Write a byte

write8fast

void write8fast(int address,
                int data)

Write a byte When a Cpu calls this method, a speed up can be achieved.

read8

int read8(int address)

Read a byte

read8opc

int read8opc(int address)

Read an opcode byte

read8arg

int read8arg(int address)

Read a byte. Can be called by CPU to read an opcode argument

write16

void write16(int address,
             int data)

Write a word

write16fast

void write16fast(int address,
                 int data)

Write a word When a Cpu calls this method, a speed up can be achieved.

read16

int read16(int address)

Read a word

read16arg

int read16arg(int address)

Read a word

out

void out(int port,
         int value)

Write to port

in

int in(int port)

Read from port