mars.mips.instructions.syscalls
Class SyscallOpen

java.lang.Object
  |
  +--mars.mips.instructions.syscalls.AbstractSyscall
        |
        +--mars.mips.instructions.syscalls.SyscallOpen

All Implemented Interfaces:

Syscall

public class SyscallOpen

extends AbstractSyscall

Service to open file name specified by $a0. File descriptor returned in $a0.

Constructor Summary

SyscallOpen()
Build an instance of the Open file syscall.

Method Summary

void	simulate(ProgramStatement statement) Performs syscall function to open file name specified by $a0.

Methods inherited from class mars.mips.instructions.syscalls.AbstractSyscall

getName, getNumber, setNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

SyscallOpen

public SyscallOpen()

Build an instance of the Open file syscall. Default service number is 13 and name is "Open".

Method Detail

simulate

public void simulate(ProgramStatement statement)
              throws ProcessingException

Performs syscall function to open file name specified by $a0. File descriptor returned in $a0. Note that Read/Write mode ($a2) is not implemented and flags ($a1) are ignored.

Specified by:

simulate in interface Syscall

Specified by:

simulate in class AbstractSyscall

Parameters:

statement - ProgramStatement object for this syscall instruction.

ProcessingException