Package mars.mips.instructions.syscalls

Class SyscallNumberOverride

java.lang.Object

mars.mips.instructions.syscalls.SyscallNumberOverride

public class SyscallNumberOverride
extends Object

Represents User override of default syscall number assignment. Such overrides are specified in the config.txt file read when MARS starts up.

Constructor Summary

Constructors

Constructor	Description
SyscallNumberOverride(String serviceName, String value)	Constructor is called with two strings: service name and desired number.

Method Summary

Modifier and Type	Method	Description
String	getName()	Get the service name as a String.
int	getNumber()	Get the new service number as an int.

Methods inherited from class java.lang.Object

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

Constructor Details

SyscallNumberOverride

public SyscallNumberOverride(String serviceName,
 String value)

Constructor is called with two strings: service name and desired number. Will throw an exception is number is malformed, but does not check validity of the service name or number.

Parameters:

serviceName - a String containing syscall service mnemonic.

value - a String containing its reassigned syscall service number. If this number is previously assigned to a different syscall which does not also receive a new number, then an error for duplicate numbers will be issued at MARS launch.

Method Details

getName

public String getName()

Get the service name as a String.

Returns:

the service name

getNumber

public int getNumber()

Get the new service number as an int.

Returns:

the service number