Package mars.mips.instructions.syscalls

Class SyscallRandIntRange

java.lang.Object

mars.mips.instructions.syscalls.AbstractSyscall

mars.mips.instructions.syscalls.SyscallRandIntRange

All Implemented Interfaces:

Syscall

public class SyscallRandIntRange
extends AbstractSyscall

Service to return a random integer in a specified range.

Constructor Summary

Constructors

Constructor	Description
SyscallRandIntRange()	Build an instance of the syscall with its default service number and name.

Method Summary

Modifier and Type	Method	Description
void	simulate(BasicStatement statement)	System call to the random number generator, with an upper range specified.

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 Details

SyscallRandIntRange

public SyscallRandIntRange()

Build an instance of the syscall with its default service number and name.

Method Details

simulate

public void simulate(BasicStatement statement)
              throws SimulatorException

System call to the random number generator, with an upper range specified. Return in $a0 the next pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.

Specified by:

simulate in interface Syscall

Specified by:

simulate in class AbstractSyscall

Parameters:

statement - BasicStatement object for this syscall instruction.

Throws:

SimulatorException