/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.jikesrvm.compilers.common.assembler.ia32;
/**
* Constants exported by the assembler
*/
public interface AssemblerConstants {
String[] CONDITION =
{"O", "NO", "LLT", "LGE", "EQ", "NE", "LLE", "LGT", "S", "NS", "PE", "PO", "LT", "GE", "LE", "GT"};
byte O = 0x0; // OF == 1 - overflow
byte NO = 0x1; // OF == 0 - not overflow
byte LLT = 0x2; // CF == 1 - logically less than (below)
byte LGE = 0x3; // CF == 0 - logically greater than or equal (not below)
byte EQ = 0x4; // ZF == 1 - equal (zero)
byte NE = 0x5; // ZF == 0 - not equal (not zero)
byte LLE = 0x6; // CF == 1 or ZF == 1 - logically less than or equal (not above)
byte LGT = 0x7; // CF == 0 and ZF == 0 - logically greater than (above)
byte S = 0x8; // SF == 1 - (sign) negative??
byte NS = 0x9; // SF == 0 - (not sign) positive or zero??
byte PE = 0xA; // PF == 1 - even parity or unordered floating point #s
byte PO = 0xB; // PF == 0 - odd parity or ordered floating point #s
byte LT = 0xC; // SF != OF - less than
byte GE = 0xD; // SF == OF - greater than or equal (not less than)
byte LE = 0xE; // ZF == 1 or SF != OF - less than or equal (not greater than)
byte GT = 0xF; // ZF == 0 and SF == OF - greater than
// scale factors for SIB bytes
short BYTE = 0;
short SHORT = 1;
short WORD = 2;
short LONG = 3;
}