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/*
* 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.*;
import java.io.*;
import java.util.*;
// Please refer to "The SPARC Architecture Manual - Version 8"
public class SPARCV8Disassembler extends SPARCDisassembler {
public SPARCV8Disassembler(long startPc, byte[] code, SPARCInstructionFactory factory) {
super(startPc, code, factory);
}
public SPARCV8Disassembler(long startPc, byte[] code) {
this(startPc, code, new SPARCInstructionFactoryImpl());
}
// decoders for format 2 instructions
private static InstructionDecoder format2Decoders[] = {
new UnimpDecoder(),
illegalDecoder,
new IntegerBranchDecoder(),
illegalDecoder,
new SethiDecoder(),
illegalDecoder,
new FloatBranchDecoder(),
new CoprocessorBranchDecoder()
};
protected InstructionDecoder getFormat2Decoder(int op2) {
return format2Decoders[op2];
}
// op3 decoder table for op=3 (FORMAT_3) instructions - (memory instructions)
// Appendix F - Opcodes and Condition Codes - Page 229 - Table F-4
private static final InstructionDecoder format3Decoders[][] = {
{
new LoadDecoder(LD, "ld", RTLDT_UNSIGNED_WORD), new AlternateSpaceLoadDecoder(LDA, "lda", RTLDT_UNSIGNED_WORD),
new LoadDecoder(LDF,"ld", RTLDT_FL_SINGLE), new SpecialLoadDecoder(LDC,"ld", SPARCSpecialRegisters.CREG)
},
{
new LoadDecoder(LDUB, "ldub", RTLDT_UNSIGNED_BYTE), new AlternateSpaceLoadDecoder(LDUBA, "lduba", RTLDT_UNSIGNED_BYTE),
new SpecialLoadDecoder(LDFSR, "ld", SPARCSpecialRegisters.FSR), new SpecialLoadDecoder(LDCSR, "ld", SPARCSpecialRegisters.CSR)
},
{
new LoadDecoder(LDUH, "lduh", RTLDT_UNSIGNED_HALF), new AlternateSpaceLoadDecoder(LDUHA, "lduha", RTLDT_UNSIGNED_HALF),
illegalDecoder, illegalDecoder
},
{
new LoadDecoder(LDD, "ldd", RTLDT_UNSIGNED_DWORD), new AlternateSpaceLoadDecoder(LDDA, "ldda", RTLDT_UNSIGNED_DWORD),
new LoadDecoder(LDDF, "ldd", RTLDT_FL_DOUBLE), new SpecialLoadDecoder(LDDC, "ldd", SPARCSpecialRegisters.CREG)
},
{
new StoreDecoder(ST, "st", RTLDT_UNSIGNED_WORD), new AlternateSpaceStoreDecoder(STA, "sta", RTLDT_UNSIGNED_WORD),
new StoreDecoder(STF, "st", RTLDT_FL_SINGLE), new SpecialStoreDecoder(STC, "st", SPARCSpecialRegisters.CREG)
},
{
new StoreDecoder(STB, "stb", RTLDT_UNSIGNED_BYTE), new AlternateSpaceStoreDecoder(STBA, "stba", RTLDT_UNSIGNED_BYTE),
new SpecialStoreDecoder(STFSR, "st", SPARCSpecialRegisters.FSR), new SpecialStoreDecoder(STCSR, "st", SPARCSpecialRegisters.CSR),
},
{
new StoreDecoder(STH, "sth", RTLDT_UNSIGNED_HALF), new AlternateSpaceStoreDecoder(STHA, "stha", RTLDT_UNSIGNED_HALF),
new SpecialStoreDecoder(STDFQ, "std", SPARCSpecialRegisters.FQ), new SpecialStoreDecoder(STDCQ, "std", SPARCSpecialRegisters.CQ),
},
{
new StoreDecoder(STD, "std", RTLDT_UNSIGNED_DWORD), new AlternateSpaceStoreDecoder(STDA, "stda", RTLDT_UNSIGNED_DWORD),
new StoreDecoder(STDF, "std", RTLDT_FL_DOUBLE), new SpecialStoreDecoder(STDC, "std", SPARCSpecialRegisters.CREG)
},
{
illegalDecoder, illegalDecoder,
illegalDecoder, illegalDecoder
},
{
new LoadDecoder(LDSB, "ldsb", RTLDT_SIGNED_BYTE), new AlternateSpaceLoadDecoder(LDSBA, "ldsba", RTLDT_UNSIGNED_BYTE),
illegalDecoder, illegalDecoder
},
{
new LoadDecoder(LDSH, "ldsh", RTLDT_SIGNED_HALF), new AlternateSpaceLoadDecoder(LDSHA, "ldsha", RTLDT_UNSIGNED_HALF),
illegalDecoder, illegalDecoder
},
{
illegalDecoder, illegalDecoder,
illegalDecoder, illegalDecoder
},
{
illegalDecoder, illegalDecoder,
illegalDecoder, illegalDecoder
},
{
new LdstubDecoder(LDSTUB, "ldstub", RTLDT_UNSIGNED_BYTE), new AlternateSpaceLdstubDecoder(LDSTUBA, "ldstuba", RTLDT_UNSIGNED_BYTE),
illegalDecoder, illegalDecoder
},
{
illegalDecoder, illegalDecoder,
illegalDecoder, illegalDecoder
},
{
new SwapDecoder(SWAP, "swap", RTLDT_UNSIGNED_WORD), new AlternateSpaceSwapDecoder(SWAPA, "swapa", RTLDT_UNSIGNED_WORD),
illegalDecoder, illegalDecoder
},
};
protected InstructionDecoder getFormat3Decoder(int row, int column) {
return format3Decoders[row][column];
}
// op3 decoder table for op=2 (FORMAT_3A) instructions
// Appendix F - Opcodes and Condition Codes - Page 228 - Table F-3
protected static final InstructionDecoder format3ADecoders[][] = {
{
new ArithmeticDecoder(ADD, "add", RTLOP_ADD), new ArithmeticDecoder(ADDcc, "addcc", RTLOP_ADD),
new ArithmeticDecoder(TADDcc, "taddcc", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.ASR)
},
{
new LogicDecoder(AND, "and", RTLOP_AND), new LogicDecoder(ANDcc, "andcc", RTLOP_AND),
new ArithmeticDecoder(TSUBcc, "tsubcc", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.PSR)
},
{
new LogicDecoder(OR, "or", RTLOP_OR), new LogicDecoder(ORcc, "orcc", RTLOP_OR),
new ArithmeticDecoder(TADDccTV, "taddcctv", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.WIM)
},
{
new LogicDecoder(XOR, "xor", RTLOP_XOR), new LogicDecoder(XORcc, "xorcc", RTLOP_XOR),
new ArithmeticDecoder(TSUBccTV, "tsubcctv", RTLOP_SUB), new WriteDecoder(SPARCSpecialRegisters.TBR)
},
{
new ArithmeticDecoder(SUB, "sub", RTLOP_SUB), new ArithmeticDecoder(SUBcc, "subcc", RTLOP_SUB),
new ArithmeticDecoder(MULScc, "mulscc", RTLOP_SMUL), new V8FPop1Decoder()
},
{
new LogicDecoder(ANDN, "andn", RTLOP_NAND), new LogicDecoder(ANDNcc, "andncc", RTLOP_NAND),
new ShiftDecoder(SLL, "sll", RTLOP_SLL), new V8FPop2Decoder()
},
{
new LogicDecoder(ORN, "orn", RTLOP_NOR), new LogicDecoder(ORNcc, "orncc", RTLOP_NOR),
new ShiftDecoder(SRL, "srl", RTLOP_SRL), new CoprocessorDecoder(CPop1)
},
{
new LogicDecoder(XNOR, "xnor", RTLOP_XNOR), new LogicDecoder(XNORcc, "xnorcc", RTLOP_XNOR),
new ShiftDecoder(SRA, "sra", RTLOP_SRA), new CoprocessorDecoder(CPop2)
},
{
new ArithmeticDecoder(ADDX, "addx", RTLOP_ADDC), new ArithmeticDecoder(ADDXcc, "addxcc", RTLOP_ADDC),
new ReadDecoder(SPARCSpecialRegisters.ASR), new JmplDecoder()
},
{
illegalDecoder, illegalDecoder,
new ReadDecoder(SPARCSpecialRegisters.PSR), new RettDecoder()
},
{
new ArithmeticDecoder(UMUL, "umul", RTLOP_UMUL), new ArithmeticDecoder(UMULcc, "umulcc", RTLOP_UMUL),
new ReadDecoder(SPARCSpecialRegisters.WIM), new TrapDecoder()
},
{
new ArithmeticDecoder(SMUL, "smul", RTLOP_SMUL), new ArithmeticDecoder(SMULcc, "smulcc", RTLOP_SMUL),
new ReadDecoder(SPARCSpecialRegisters.TBR), new FlushDecoder()
},
{
new ArithmeticDecoder(SUBX, "subx", RTLOP_SUBC), new ArithmeticDecoder(SUBXcc, "subxcc", RTLOP_SUBC),
illegalDecoder, new SaveDecoder()
},
{
illegalDecoder, illegalDecoder,
illegalDecoder, new RestoreDecoder()
},
{
new ArithmeticDecoder(UDIV, "udiv", RTLOP_UDIV), new ArithmeticDecoder(UDIVcc, "udivcc", RTLOP_UDIV),
illegalDecoder, illegalDecoder
},
{
new ArithmeticDecoder(SDIV, "sdiv", RTLOP_SDIV), new ArithmeticDecoder(SDIVcc, "sdivcc", RTLOP_SDIV),
illegalDecoder, illegalDecoder
}
};
protected InstructionDecoder getFormat3ADecoder(int row, int column) {
return format3ADecoders[row][column];
}
}
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