1 /*
2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
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 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.asm.sparc;
26
27 import sun.jvm.hotspot.asm.*;
28 import java.io.*;
29 import java.util.*;
30
31 // Please refer to "The SPARC Architecture Manual - Version 8"
32
33 public class SPARCV8Disassembler extends SPARCDisassembler {
34
35 public SPARCV8Disassembler(long startPc, byte[] code, SPARCInstructionFactory factory) {
36 super(startPc, code, factory);
37 }
38
39 public SPARCV8Disassembler(long startPc, byte[] code) {
40 this(startPc, code, new SPARCInstructionFactoryImpl());
41 }
42
43 // decoders for format 2 instructions
44 private static InstructionDecoder format2Decoders[] = {
45 new UnimpDecoder(),
46 illegalDecoder,
47 new IntegerBranchDecoder(),
48 illegalDecoder,
49 new SethiDecoder(),
50 illegalDecoder,
51 new FloatBranchDecoder(),
52 new CoprocessorBranchDecoder()
53 };
54
55 protected InstructionDecoder getFormat2Decoder(int op2) {
56 return format2Decoders[op2];
57 }
58
59 // op3 decoder table for op=3 (FORMAT_3) instructions - (memory instructions)
60 // Appendix F - Opcodes and Condition Codes - Page 229 - Table F-4
61
62 private static final InstructionDecoder format3Decoders[][] = {
63 {
64 new LoadDecoder(LD, "ld", RTLDT_UNSIGNED_WORD), new AlternateSpaceLoadDecoder(LDA, "lda", RTLDT_UNSIGNED_WORD),
65 new LoadDecoder(LDF,"ld", RTLDT_FL_SINGLE), new SpecialLoadDecoder(LDC,"ld", SPARCSpecialRegisters.CREG)
66 },
67 {
68 new LoadDecoder(LDUB, "ldub", RTLDT_UNSIGNED_BYTE), new AlternateSpaceLoadDecoder(LDUBA, "lduba", RTLDT_UNSIGNED_BYTE),
69 new SpecialLoadDecoder(LDFSR, "ld", SPARCSpecialRegisters.FSR), new SpecialLoadDecoder(LDCSR, "ld", SPARCSpecialRegisters.CSR)
70 },
71 {
72 new LoadDecoder(LDUH, "lduh", RTLDT_UNSIGNED_HALF), new AlternateSpaceLoadDecoder(LDUHA, "lduha", RTLDT_UNSIGNED_HALF),
73 illegalDecoder, illegalDecoder
74 },
75 {
76 new LoadDecoder(LDD, "ldd", RTLDT_UNSIGNED_DWORD), new AlternateSpaceLoadDecoder(LDDA, "ldda", RTLDT_UNSIGNED_DWORD),
77 new LoadDecoder(LDDF, "ldd", RTLDT_FL_DOUBLE), new SpecialLoadDecoder(LDDC, "ldd", SPARCSpecialRegisters.CREG)
78 },
79 {
80 new StoreDecoder(ST, "st", RTLDT_UNSIGNED_WORD), new AlternateSpaceStoreDecoder(STA, "sta", RTLDT_UNSIGNED_WORD),
81 new StoreDecoder(STF, "st", RTLDT_FL_SINGLE), new SpecialStoreDecoder(STC, "st", SPARCSpecialRegisters.CREG)
82 },
83 {
84 new StoreDecoder(STB, "stb", RTLDT_UNSIGNED_BYTE), new AlternateSpaceStoreDecoder(STBA, "stba", RTLDT_UNSIGNED_BYTE),
85 new SpecialStoreDecoder(STFSR, "st", SPARCSpecialRegisters.FSR), new SpecialStoreDecoder(STCSR, "st", SPARCSpecialRegisters.CSR),
86 },
87 {
88 new StoreDecoder(STH, "sth", RTLDT_UNSIGNED_HALF), new AlternateSpaceStoreDecoder(STHA, "stha", RTLDT_UNSIGNED_HALF),
89 new SpecialStoreDecoder(STDFQ, "std", SPARCSpecialRegisters.FQ), new SpecialStoreDecoder(STDCQ, "std", SPARCSpecialRegisters.CQ),
90 },
91 {
92 new StoreDecoder(STD, "std", RTLDT_UNSIGNED_DWORD), new AlternateSpaceStoreDecoder(STDA, "stda", RTLDT_UNSIGNED_DWORD),
93 new StoreDecoder(STDF, "std", RTLDT_FL_DOUBLE), new SpecialStoreDecoder(STDC, "std", SPARCSpecialRegisters.CREG)
94 },
95 {
96 illegalDecoder, illegalDecoder,
97 illegalDecoder, illegalDecoder
98 },
99 {
100 new LoadDecoder(LDSB, "ldsb", RTLDT_SIGNED_BYTE), new AlternateSpaceLoadDecoder(LDSBA, "ldsba", RTLDT_UNSIGNED_BYTE),
101 illegalDecoder, illegalDecoder
102 },
103 {
104 new LoadDecoder(LDSH, "ldsh", RTLDT_SIGNED_HALF), new AlternateSpaceLoadDecoder(LDSHA, "ldsha", RTLDT_UNSIGNED_HALF),
105 illegalDecoder, illegalDecoder
106 },
107 {
108 illegalDecoder, illegalDecoder,
109 illegalDecoder, illegalDecoder
110 },
111 {
112 illegalDecoder, illegalDecoder,
113 illegalDecoder, illegalDecoder
114 },
115 {
116 new LdstubDecoder(LDSTUB, "ldstub", RTLDT_UNSIGNED_BYTE), new AlternateSpaceLdstubDecoder(LDSTUBA, "ldstuba", RTLDT_UNSIGNED_BYTE),
117 illegalDecoder, illegalDecoder
118 },
119 {
120 illegalDecoder, illegalDecoder,
121 illegalDecoder, illegalDecoder
122 },
123 {
124 new SwapDecoder(SWAP, "swap", RTLDT_UNSIGNED_WORD), new AlternateSpaceSwapDecoder(SWAPA, "swapa", RTLDT_UNSIGNED_WORD),
125 illegalDecoder, illegalDecoder
126 },
127 };
128
129 protected InstructionDecoder getFormat3Decoder(int row, int column) {
130 return format3Decoders[row][column];
131 }
132
133 // op3 decoder table for op=2 (FORMAT_3A) instructions
134 // Appendix F - Opcodes and Condition Codes - Page 228 - Table F-3
135 protected static final InstructionDecoder format3ADecoders[][] = {
136 {
137 new ArithmeticDecoder(ADD, "add", RTLOP_ADD), new ArithmeticDecoder(ADDcc, "addcc", RTLOP_ADD),
138 new ArithmeticDecoder(TADDcc, "taddcc", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.ASR)
139 },
140 {
141 new LogicDecoder(AND, "and", RTLOP_AND), new LogicDecoder(ANDcc, "andcc", RTLOP_AND),
142 new ArithmeticDecoder(TSUBcc, "tsubcc", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.PSR)
143 },
144 {
145 new LogicDecoder(OR, "or", RTLOP_OR), new LogicDecoder(ORcc, "orcc", RTLOP_OR),
146 new ArithmeticDecoder(TADDccTV, "taddcctv", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.WIM)
147 },
148 {
149 new LogicDecoder(XOR, "xor", RTLOP_XOR), new LogicDecoder(XORcc, "xorcc", RTLOP_XOR),
150 new ArithmeticDecoder(TSUBccTV, "tsubcctv", RTLOP_SUB), new WriteDecoder(SPARCSpecialRegisters.TBR)
151 },
152 {
153 new ArithmeticDecoder(SUB, "sub", RTLOP_SUB), new ArithmeticDecoder(SUBcc, "subcc", RTLOP_SUB),
154 new ArithmeticDecoder(MULScc, "mulscc", RTLOP_SMUL), new V8FPop1Decoder()
155 },
156 {
157 new LogicDecoder(ANDN, "andn", RTLOP_NAND), new LogicDecoder(ANDNcc, "andncc", RTLOP_NAND),
158 new ShiftDecoder(SLL, "sll", RTLOP_SLL), new V8FPop2Decoder()
159 },
160 {
161 new LogicDecoder(ORN, "orn", RTLOP_NOR), new LogicDecoder(ORNcc, "orncc", RTLOP_NOR),
162 new ShiftDecoder(SRL, "srl", RTLOP_SRL), new CoprocessorDecoder(CPop1)
163 },
164 {
165 new LogicDecoder(XNOR, "xnor", RTLOP_XNOR), new LogicDecoder(XNORcc, "xnorcc", RTLOP_XNOR),
166 new ShiftDecoder(SRA, "sra", RTLOP_SRA), new CoprocessorDecoder(CPop2)
167 },
168 {
169 new ArithmeticDecoder(ADDX, "addx", RTLOP_ADDC), new ArithmeticDecoder(ADDXcc, "addxcc", RTLOP_ADDC),
170 new ReadDecoder(SPARCSpecialRegisters.ASR), new JmplDecoder()
171 },
172 {
173 illegalDecoder, illegalDecoder,
174 new ReadDecoder(SPARCSpecialRegisters.PSR), new RettDecoder()
175 },
176 {
177 new ArithmeticDecoder(UMUL, "umul", RTLOP_UMUL), new ArithmeticDecoder(UMULcc, "umulcc", RTLOP_UMUL),
178 new ReadDecoder(SPARCSpecialRegisters.WIM), new TrapDecoder()
179 },
180 {
181 new ArithmeticDecoder(SMUL, "smul", RTLOP_SMUL), new ArithmeticDecoder(SMULcc, "smulcc", RTLOP_SMUL),
182 new ReadDecoder(SPARCSpecialRegisters.TBR), new FlushDecoder()
183 },
184 {
185 new ArithmeticDecoder(SUBX, "subx", RTLOP_SUBC), new ArithmeticDecoder(SUBXcc, "subxcc", RTLOP_SUBC),
186 illegalDecoder, new SaveDecoder()
187 },
188 {
189 illegalDecoder, illegalDecoder,
190 illegalDecoder, new RestoreDecoder()
191 },
192 {
193 new ArithmeticDecoder(UDIV, "udiv", RTLOP_UDIV), new ArithmeticDecoder(UDIVcc, "udivcc", RTLOP_UDIV),
194 illegalDecoder, illegalDecoder
195 },
196 {
197 new ArithmeticDecoder(SDIV, "sdiv", RTLOP_SDIV), new ArithmeticDecoder(SDIVcc, "sdivcc", RTLOP_SDIV),
198 illegalDecoder, illegalDecoder
199 }
200 };
201
202 protected InstructionDecoder getFormat3ADecoder(int row, int column) {
203 return format3ADecoders[row][column];
204 }
205 }