com.io7m.jpra.compiler.java

Class JPRAMasks

java.lang.Object

com.io7m.jpra.compiler.java.JPRAMasks

public final class JPRAMasks
extends Object

Functions to create bit masks.

Method Summary

Modifier and Type	Method and Description
static String	createOneMask(int size, int lsb, int msb) Create a mask of size bits, where the bits from the inclusive range [lsb, msb] are set to 0 and the rest are set to 1.
static String	createZeroMask(int size, int lsb, int msb) Create a mask of size bits, where the bits from the inclusive range [lsb, msb] are set to 0 and the rest are set to 1.

Methods inherited from class java.lang.Object

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

Method Detail

createZeroMask

public static String createZeroMask(int size,
                                    int lsb,
                                    int msb)

Create a mask of size bits, where the bits from the inclusive range [lsb, msb] are set to 0 and the rest are set to 1.

Parameters:

size - The mask size

lsb - The least significant bit index

msb - The most significant bit index

Returns:

A mask string

createOneMask

public static String createOneMask(int size,
                                   int lsb,
                                   int msb)

Create a mask of size bits, where the bits from the inclusive range [lsb, msb] are set to 0 and the rest are set to 1.

Parameters:

size - The mask size

lsb - The least significant bit index

msb - The most significant bit index

Returns:

A mask string