--- old/agent/src/share/classes/sun/jvm/hotspot/asm/sparc/JmplDecoder.java Thu Sep 17 16:09:53 2009 +++ /dev/null Thu Sep 17 16:09:53 2009 @@ -1,55 +0,0 @@ -/* - * 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.*; - -class JmplDecoder extends MemoryInstructionDecoder { - JmplDecoder() { - super(JMPL, "jmpl", RTLDT_UNSIGNED_WORD); - } - - Instruction decodeMemoryInstruction(int instruction, SPARCRegisterIndirectAddress addr, - SPARCRegister rd, SPARCInstructionFactory factory) { - // this may be most probably indirect call or ret or retl - Instruction instr = null; - if (rd == SPARCRegisters.O7) { - instr = factory.newIndirectCallInstruction(addr, rd); - } else if (rd == SPARCRegisters.G0) { - int disp = (int) addr.getDisplacement(); - Register base = addr.getBase(); - if (base == SPARCRegisters.I7 && disp == 8) { - instr = factory.newReturnInstruction(addr, rd, false /* not leaf */); - } else if (base == SPARCRegisters.O7 && disp == 8) { - instr = factory.newReturnInstruction(addr, rd, true /* leaf */); - } else { - instr = factory.newJmplInstruction(addr, rd); - } - } else { - instr = factory.newJmplInstruction(addr, rd); - } - return instr; - } -}