Class SCMainMem

java.lang.Object
  |
  +--SCMainMem

public class SCMainMem

extends java.lang.Object

SCmainMem simulates the main memory module of a SimpComp computer. User addressable space from 1000h to FFFFh.

Field Summary

static int	ADDR_OFFSET
static int	BASE_ADDR
static int	MAX_ADDR

Constructor Summary

SCMainMem()
Constructor, initializes the entire memory array to 0.

Method Summary

short	getByteAt(int addr) Retrieves a byte of data from a specified address location.
short	getByteAt(java.lang.String addr) Retrieves a byte of data from a specified address location.
void	putByteAt(int addr, short byteValue) Puts a byte of data at a specified address location.
void	putByteAt(java.lang.String addr, short byteValue) Puts a byte of data at a specified address location.
void	reset() Resets the memory, each address to 0;
java.lang.String	toString(int pc) Converts a range of memory values, from pc-4 to pc+4, into a concatenated string String.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BASE_ADDR

public static final int BASE_ADDR

See Also:

Constant Field Values

MAX_ADDR

public static final int MAX_ADDR

See Also:

Constant Field Values

ADDR_OFFSET

public static final int ADDR_OFFSET

See Also:

Constant Field Values

Constructor Detail

SCMainMem

public SCMainMem()

Constructor, initializes the entire memory array to 0.

Method Detail

reset

public void reset()

Resets the memory, each address to 0;

putByteAt

public void putByteAt(java.lang.String addr,
                      short byteValue)
               throws java.lang.IllegalArgumentException

Puts a byte of data at a specified address location.

Parameters:

byteValue -

java.lang.IllegalArgumentException

putByteAt

public void putByteAt(int addr,
                      short byteValue)
               throws java.lang.IllegalArgumentException

Puts a byte of data at a specified address location.

Parameters:

byteValue -

java.lang.IllegalArgumentException

getByteAt

public short getByteAt(java.lang.String addr)
                throws java.lang.IllegalArgumentException

Retrieves a byte of data from a specified address location.

Returns:

byteValue

java.lang.IllegalArgumentException

getByteAt

public short getByteAt(int addr)
                throws java.lang.IllegalArgumentException

Retrieves a byte of data from a specified address location.

Returns:

byteValue

java.lang.IllegalArgumentException

toString

public java.lang.String toString(int pc)

Converts a range of memory values, from pc-4 to pc+4, into a concatenated string String. Values are separated by tab character, which are meant for possible tokenization.

Returns:

concatenated string