jnr.x86asm.Immediate Maven / Gradle / Ivy
//
// Copyright (C) 2010 Wayne Meissner
// Copyright (c) 2008-2009, Petr Kobalicek
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
package jnr.x86asm;
/**
*
*/
public final class Immediate extends Operand {
private final long value;
private final boolean isUnsigned;
private final RELOC_MODE relocMode;
public Immediate(long value, boolean isUnsigned) {
super(OP.OP_IMM, 0);
this.value = value;
this.isUnsigned = isUnsigned;
this.relocMode = RELOC_MODE.RELOC_NONE;
}
public long value() {
return value;
}
public final byte byteValue() {
return (byte) value;
}
public final short shortValue() {
return (short) value;
}
public final int intValue() {
return (int) value;
}
public final long longValue() {
return value;
}
/** Return true if immediate is unsigned value. */
public final boolean isUnsigned() {
return isUnsigned;
}
/** Return relocation mode. */
RELOC_MODE relocMode() {
return relocMode;
}
/**
* Internal cache of common native long values
*/
private static final class Cache {
private Cache() {}
static final Immediate[] cache = new Immediate[256];
static {
for (int i = 0; i < cache.length; ++i) {
cache[i] = new Immediate(i - 128, false);
}
}
}
public static final Immediate imm(long value) {
return value >= -128 && value <= 127
? Cache.cache[128 + (int) value] : new Immediate(value, false);
}
public static final Immediate uimm(long value) {
return new Immediate(value, true);
}
}