diff graal/com.oracle.max.asmdis/src/com/sun/max/asm/AddressLiteral.java @ 3733:e233f5660da4

Added Java files from Maxine project.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 17 Dec 2011 19:59:18 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.asmdis/src/com/sun/max/asm/AddressLiteral.java	Sat Dec 17 19:59:18 2011 +0100
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+/*
+ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.max.asm;
+
+import com.sun.max.lang.*;
+
+/**
+ * Represents a position assembled as an absolute address.
+ */
+public class AddressLiteral extends MutableAssembledObject {
+
+    protected AddressLiteral(Assembler assembler, int startPosition, int endPosition, Label label) {
+        super(assembler, startPosition, endPosition);
+        assembler.addFixedSizeAssembledObject(this);
+        this.label = label;
+    }
+
+    private final Label label;
+
+    @Override
+    protected final void assemble() throws AssemblyException {
+        final Assembler assembler = assembler();
+        final WordWidth wordWidth = assembler.wordWidth();
+        if (wordWidth == WordWidth.BITS_64) {
+            assembler.emitLong(assembler.baseAddress() + label.position());
+        } else if  (wordWidth == WordWidth.BITS_32) {
+            assembler.emitInt((int) (assembler.baseAddress() + label.position()));
+        } else if  (wordWidth == WordWidth.BITS_16) {
+            assembler.emitShort((short) (assembler.baseAddress() + label.position()));
+        } else {
+            assert wordWidth == WordWidth.BITS_8;
+            assembler.emitByte((byte) (assembler.baseAddress() + label.position()));
+        }
+    }
+
+    public final boolean isCode() {
+        return false;
+    }
+}