| /* |
| * 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; |
| |
| import org.j3.runtime.VM; |
| |
| /** |
| * Constants defining the basic sizes of primitive quantities |
| */ |
| public interface SizeConstants { |
| |
| int LOG_BYTES_IN_BYTE = 0; |
| int BYTES_IN_BYTE = 1; |
| int LOG_BITS_IN_BYTE = 3; |
| int BITS_IN_BYTE = 1 << LOG_BITS_IN_BYTE; |
| |
| int LOG_BYTES_IN_BOOLEAN = 0; |
| int BYTES_IN_BOOLEAN = 1 << LOG_BYTES_IN_BOOLEAN; |
| int LOG_BITS_IN_BOOLEAN = LOG_BITS_IN_BYTE + LOG_BYTES_IN_BOOLEAN; |
| int BITS_IN_BOOLEAN = 1 << LOG_BITS_IN_BOOLEAN; |
| |
| int LOG_BYTES_IN_CHAR = 1; |
| int BYTES_IN_CHAR = 1 << LOG_BYTES_IN_CHAR; |
| int LOG_BITS_IN_CHAR = LOG_BITS_IN_BYTE + LOG_BYTES_IN_CHAR; |
| int BITS_IN_CHAR = 1 << LOG_BITS_IN_CHAR; |
| |
| int LOG_BYTES_IN_SHORT = 1; |
| int BYTES_IN_SHORT = 1 << LOG_BYTES_IN_SHORT; |
| int LOG_BITS_IN_SHORT = LOG_BITS_IN_BYTE + LOG_BYTES_IN_SHORT; |
| int BITS_IN_SHORT = 1 << LOG_BITS_IN_SHORT; |
| |
| int LOG_BYTES_IN_INT = 2; |
| int BYTES_IN_INT = 1 << LOG_BYTES_IN_INT; |
| int LOG_BITS_IN_INT = LOG_BITS_IN_BYTE + LOG_BYTES_IN_INT; |
| int BITS_IN_INT = 1 << LOG_BITS_IN_INT; |
| |
| int LOG_BYTES_IN_FLOAT = 2; |
| int BYTES_IN_FLOAT = 1 << LOG_BYTES_IN_FLOAT; |
| int LOG_BITS_IN_FLOAT = LOG_BITS_IN_BYTE + LOG_BYTES_IN_FLOAT; |
| int BITS_IN_FLOAT = 1 << LOG_BITS_IN_FLOAT; |
| |
| int LOG_BYTES_IN_LONG = 3; |
| int BYTES_IN_LONG = 1 << LOG_BYTES_IN_LONG; |
| int LOG_BITS_IN_LONG = LOG_BITS_IN_BYTE + LOG_BYTES_IN_LONG; |
| int BITS_IN_LONG = 1 << LOG_BITS_IN_LONG; |
| |
| int LOG_BYTES_IN_DOUBLE = 3; |
| int BYTES_IN_DOUBLE = 1 << LOG_BYTES_IN_DOUBLE; |
| int LOG_BITS_IN_DOUBLE = LOG_BITS_IN_BYTE + LOG_BYTES_IN_DOUBLE; |
| int BITS_IN_DOUBLE = 1 << LOG_BITS_IN_DOUBLE; |
| |
| int LOG_BYTES_IN_ADDRESS = VM.BuildFor64Addr ? 3 : 2; |
| int BYTES_IN_ADDRESS = 1 << LOG_BYTES_IN_ADDRESS; |
| int LOG_BITS_IN_ADDRESS = LOG_BITS_IN_BYTE + LOG_BYTES_IN_ADDRESS; |
| int BITS_IN_ADDRESS = 1 << LOG_BITS_IN_ADDRESS; |
| |
| int LOG_BYTES_IN_WORD = VM.BuildFor64Addr ? 3 : 2; |
| int BYTES_IN_WORD = 1 << LOG_BYTES_IN_WORD; |
| int LOG_BITS_IN_WORD = LOG_BITS_IN_BYTE + LOG_BYTES_IN_WORD; |
| int BITS_IN_WORD = 1 << LOG_BITS_IN_WORD; |
| |
| int LOG_BYTES_IN_PAGE = 12; |
| int BYTES_IN_PAGE = 1 << LOG_BYTES_IN_PAGE; |
| int LOG_BITS_IN_PAGE = LOG_BITS_IN_BYTE + LOG_BYTES_IN_PAGE; |
| int BITS_IN_PAGE = 1 << LOG_BITS_IN_PAGE; |
| } |