Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/asm/x86/X86JmpInstruction.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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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/x86/X86JmpInstruction.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,69 @@ +/* + * Copyright 2003 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.x86; + +import sun.jvm.hotspot.asm.*; + +public class X86JmpInstruction extends X86Instruction + implements BranchInstruction { + final private Address addr; + + public X86JmpInstruction(String name, Address addr, int size, int prefixes) { + super(name, size, prefixes); + this.addr = addr; + if(addr instanceof X86PCRelativeAddress) { + ((X86PCRelativeAddress)addr).setInstructionSize(getSize()); + } + } + + public String asString(long currentPc, SymbolFinder symFinder) { + StringBuffer buf = new StringBuffer(); + buf.append(getPrefixString()); + buf.append(getName()); + buf.append(spaces); + long address; + if(addr instanceof X86PCRelativeAddress) { + long disp = ((X86PCRelativeAddress)addr).getDisplacement(); + address = disp + currentPc; + buf.append(symFinder.getSymbolFor(address)); + } + else { + buf.append(addr.toString()); + } + return buf.toString(); + } + + public Address getBranchDestination() { + return addr; + } + + public boolean isBranch() { + return true; + } + + public boolean isConditional() { + return false; + } +}