--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/asm/sparc/V9RegisterBranchDecoder.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,60 @@
+/*
+ * 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.*;
+
+abstract class V9RegisterBranchDecoder extends V9BranchDecoder {
+    static int getDisp16(int instruction) {
+        int offset = (DISP_16_LO_MASK & instruction)  |
+           ((DISP_16_HI_MASK & instruction) >>> (DISP_16_HI_START_BIT - DISP_16_LO_NUMBITS));
+
+        // sign extend and word align
+        offset = extractSignedIntFromNBits(offset, 16);
+        offset <<= 2;
+
+        return offset;
+    }
+
+    String getConditionName(int conditionCode, boolean isAnnuled) {
+        return null;
+    }
+
+    abstract String getRegisterConditionName(int rcond);
+
+    public Instruction decode(int instruction, SPARCInstructionFactory factory) {
+        SPARCV9InstructionFactory v9factory = (SPARCV9InstructionFactory) factory;
+        int rcond = (BRANCH_RCOND_MASK & instruction) >>> BRANCH_RCOND_START_BIT;
+        if (rcond == BRANCH_RCOND_RESERVED1 || rcond == BRANCH_RCOND_RESERVED2)
+            return factory.newIllegalInstruction(instruction);
+
+        SPARCRegister rs1 = SPARCRegisters.getRegister(getSourceRegister1(instruction));
+        boolean predictTaken = getPredictTaken(instruction);
+        boolean annuled = getAnnuledBit(instruction);
+        PCRelativeAddress addr = new PCRelativeAddress(getDisp16(instruction));
+        String name = getRegisterConditionName(rcond);
+        return v9factory.newV9RegisterBranchInstruction(name, addr, annuled, rcond, rs1, predictTaken);
+    }
+}