diff agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCSaveInstruction.java @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCSaveInstruction.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.asm.sparc;
+
+import sun.jvm.hotspot.asm.*;
+
+public class SPARCSaveInstruction extends SPARCFormat3AInstruction {
+    final private boolean trivial;
+    public SPARCSaveInstruction(SPARCRegister rs1, ImmediateOrRegister operand2, SPARCRegister rd) {
+        super("save", SAVE, rs1, operand2, rd);
+        SPARCRegister G0 = SPARCRegisters.G0;
+        trivial = (rs1 == G0 && operand2 == G0 && rd == G0);
+    }
+
+    public boolean isTrivial() {
+        return trivial;
+    }
+
+    protected String getOperand2String() {
+        StringBuffer buf = new StringBuffer();
+        if (operand2.isRegister()) {
+            buf.append(operand2.toString());
+        } else {
+            Number number = ((Immediate)operand2).getNumber();
+            int value = number.intValue();
+            if (value < 0) {
+                buf.append("-0x");
+                value = -value;
+            } else {
+                buf.append("0x");
+            }
+
+            buf.append(Integer.toHexString(value));
+        }
+        return buf.toString();
+    }
+
+    protected String getDescription() {
+        return (trivial) ? getName() : super.getDescription();
+    }
+}