Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/asm/x86/X86ShiftInstruction.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/X86ShiftInstruction.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,86 @@ +/* + * 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 X86ShiftInstruction extends X86Instruction implements ShiftInstruction { + final private int operation; + final private Operand operand1; + final private ImmediateOrRegister operand2; + + public X86ShiftInstruction(String name, int operation, Operand operand1, ImmediateOrRegister operand2, int size, int prefixes) { + super(name, size, prefixes); + this.operand1 = operand1; + this.operand2 = operand2; + this.operation = operation; + } + + public String asString(long currentPc, SymbolFinder symFinder) { + StringBuffer buf = new StringBuffer(); + buf.append(getPrefixString()); + buf.append(getName()); + buf.append(spaces); + buf.append(getOperandAsString(operand1)); + + if(operand2 != null) { + buf.append(comma); + + if ((operand2 instanceof Register)) { + buf.append(operand2.toString()); + } + else { + Number number = ((Immediate)operand2).getNumber(); + buf.append("0x"); + buf.append(Integer.toHexString(number.intValue())); + } + } + return buf.toString(); + } + + public int getOperation() { + return operation; + } + + public Operand getShiftDestination() { + return operand1; + } + + public Operand getShiftLength() { + return operand2; + } + + public Operand getShiftSource() { + return operand1; + } + + public boolean isShift() { + return true; + } + + protected String getOperand2String() { + return operand2.toString(); + } +}