Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/asm/sparc/MemoryInstructionDecoder.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.asm.sparc; | |
| 26 | |
| 27 import sun.jvm.hotspot.asm.*; | |
| 28 | |
| 29 abstract class MemoryInstructionDecoder extends InstructionDecoder { | |
| 30 final int op3; | |
| 31 final String name; | |
| 32 final int dataType; | |
| 33 | |
| 34 SPARCRegisterIndirectAddress newRegisterIndirectAddress(SPARCRegister rs1, SPARCRegister rs2) { | |
| 35 return new SPARCRegisterIndirectAddress(rs1, rs2); | |
| 36 } | |
| 37 | |
| 38 SPARCRegisterIndirectAddress newRegisterIndirectAddress(SPARCRegister rs1, int offset) { | |
| 39 return new SPARCRegisterIndirectAddress(rs1, offset); | |
| 40 } | |
| 41 | |
| 42 static void setAddressSpace(int instruction, SPARCRegisterIndirectAddress addr) { | |
| 43 int asi = (instruction & ASI_MASK) >>> ASI_START_BIT; | |
| 44 addr.setAddressSpace(asi); | |
| 45 } | |
| 46 | |
| 47 SPARCRegisterIndirectAddress getRegisterIndirectAddress(int instruction) { | |
| 48 SPARCRegister rs1 = SPARCRegisters.getRegister(getSourceRegister1(instruction)); | |
| 49 boolean iBit = isIBitSet(instruction); | |
| 50 SPARCRegisterIndirectAddress addr = null; | |
| 51 if (iBit) { | |
| 52 int simm13 = extractSignedIntFromNBits(instruction, 13); | |
| 53 addr = newRegisterIndirectAddress(rs1,simm13); | |
| 54 } else { | |
| 55 SPARCRegister rs2 = SPARCRegisters.getRegister(getSourceRegister2(instruction)); | |
| 56 addr = newRegisterIndirectAddress(rs1,rs2); | |
| 57 } | |
| 58 return addr; | |
| 59 } | |
| 60 | |
| 61 MemoryInstructionDecoder(int op3, String name, int dataType) { | |
| 62 this.op3 = op3; | |
| 63 this.name = name; | |
| 64 this.dataType = dataType; | |
| 65 } | |
| 66 | |
| 67 Instruction decode(int instruction, SPARCInstructionFactory factory) { | |
| 68 SPARCRegisterIndirectAddress addr = getRegisterIndirectAddress(instruction); | |
| 69 SPARCRegister rd = getDestination(instruction); | |
| 70 boolean isV9Okay = (factory instanceof SPARCV9InstructionFactory); | |
| 71 if ( (rd == null) || (! isV9Okay && rd.isV9Only()) ) | |
| 72 return factory.newIllegalInstruction(instruction); | |
| 73 | |
| 74 return decodeMemoryInstruction(instruction, addr, rd, factory); | |
| 75 } | |
| 76 | |
| 77 SPARCRegister getDestination(int instruction) { | |
| 78 int rdNum = getDestinationRegister(instruction); | |
| 79 SPARCRegister rd = RegisterDecoder.decode(dataType, rdNum); | |
| 80 return rd; | |
| 81 } | |
| 82 | |
| 83 abstract Instruction decodeMemoryInstruction(int instruction, | |
| 84 SPARCRegisterIndirectAddress addr, | |
| 85 SPARCRegister rd, SPARCInstructionFactory factory); | |
| 86 } |