/** @file\r
- Default exception handler\r
+ Thumb Dissassembler. Still a work in progress.\r
\r
- Copyright (c) 2008-2010, Apple Inc. All rights reserved.\r
- \r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
+ Wrong output is a bug, so please fix it.\r
+ Hex output means there is not yet an entry or a decode bug.\r
+ gOpThumb[] are Thumb 16-bit, and gOpThumb2[] work on the 32-bit\r
+ 16-bit stream of Thumb2 instruction. Then there are big case\r
+ statements to print everything out. If you are adding instructions\r
+ try to reuse existing case entries if possible.\r
\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>\r
+\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <Base.h>\r
#include <Library/BaseLib.h>\r
+#include <Library/DebugLib.h>\r
#include <Library/PrintLib.h>\r
\r
extern CHAR8 *gCondition[];\r
\r
extern CHAR8 *gReg[];\r
\r
+// Thumb address modes\r
#define LOAD_STORE_FORMAT1 1\r
+#define LOAD_STORE_FORMAT1_H 101\r
+#define LOAD_STORE_FORMAT1_B 111\r
#define LOAD_STORE_FORMAT2 2\r
#define LOAD_STORE_FORMAT3 3\r
#define LOAD_STORE_FORMAT4 4\r
-#define LOAD_STORE_MULTIPLE_FORMAT1 5 \r
-#define PUSH_FORMAT 6 \r
-#define POP_FORMAT 106 \r
+#define LOAD_STORE_MULTIPLE_FORMAT1 5\r
+#define PUSH_FORMAT 6\r
+#define POP_FORMAT 106\r
#define IMMED_8 7\r
#define CONDITIONAL_BRANCH 8\r
#define UNCONDITIONAL_BRANCH 9\r
#define DATA_FORMAT8 19\r
#define CPS_FORMAT 20\r
#define ENDIAN_FORMAT 21\r
- \r
+#define DATA_CBZ 22\r
+#define ADR_FORMAT 23\r
+#define IT_BLOCK 24\r
+\r
+// Thumb2 address modes\r
#define B_T3 200\r
#define B_T4 201\r
#define BL_T2 202\r
+#define POP_T2 203\r
+#define POP_T3 204\r
+#define STM_FORMAT 205\r
+#define LDM_REG_IMM12_SIGNED 206\r
+#define LDM_REG_IMM12_LSL 207\r
+#define LDM_REG_IMM8 208\r
+#define LDM_REG_IMM12 209\r
+#define LDM_REG_INDIRECT_LSL 210\r
+#define LDM_REG_IMM8_SIGNED 211\r
+#define LDRD_REG_IMM8 212\r
+#define LDREXB 213\r
+#define LDREXD 214\r
+#define SRS_FORMAT 215\r
+#define RFE_FORMAT 216\r
+#define LDRD_REG_IMM8_SIGNED 217\r
+#define ADD_IMM12 218\r
+#define ADD_IMM5 219\r
+#define ADR_THUMB2 220\r
+#define CMN_THUMB2 221\r
+#define ASR_IMM5 222\r
+#define ASR_3REG 223\r
+#define BFC_THUMB2 224\r
+#define CDP_THUMB2 225\r
+#define THUMB2_NO_ARGS 226\r
+#define THUMB2_2REGS 227\r
+#define ADD_IMM5_2REG 228\r
+#define CPD_THUMB2 229\r
+#define THUMB2_4REGS 230\r
+#define ADD_IMM12_1REG 231\r
+#define THUMB2_IMM16 232\r
+#define MRC_THUMB2 233\r
+#define MRRC_THUMB2 234\r
+#define THUMB2_MRS 235\r
+#define THUMB2_MSR 236\r
+\r
+\r
\r
\r
typedef struct {\r
\r
THUMB_INSTRUCTIONS gOpThumb[] = {\r
// Thumb 16-bit instrucitons\r
-// Op Mask Format\r
- { "ADC" , 0x4140, 0xffc0, DATA_FORMAT5 },\r
-\r
+// Op Mask Format\r
+ { "ADC" , 0x4140, 0xffc0, DATA_FORMAT5 }, // ADC <Rndn>, <Rm>\r
+ { "ADR", 0xa000, 0xf800, ADR_FORMAT }, // ADR <Rd>, <label>\r
{ "ADD" , 0x1c00, 0xfe00, DATA_FORMAT2 },\r
{ "ADD" , 0x3000, 0xf800, DATA_FORMAT3 },\r
{ "ADD" , 0x1800, 0xfe00, DATA_FORMAT1 },\r
{ "ADD" , 0x4400, 0xff00, DATA_FORMAT8 }, // A8.6.9\r
{ "ADD" , 0xa000, 0xf100, DATA_FORMAT6_PC },\r
- { "ADD" , 0xa800, 0xf800, DATA_FORMAT6_SP }, \r
+ { "ADD" , 0xa800, 0xf800, DATA_FORMAT6_SP },\r
{ "ADD" , 0xb000, 0xff80, DATA_FORMAT7 },\r
\r
{ "AND" , 0x4000, 0xffc0, DATA_FORMAT5 },\r
\r
{ "BIC" , 0x4380, 0xffc0, DATA_FORMAT5 },\r
{ "BKPT", 0xdf00, 0xff00, IMMED_8 },\r
+ { "CBZ", 0xb100, 0xfd00, DATA_CBZ },\r
+ { "CBNZ", 0xb900, 0xfd00, DATA_CBZ },\r
{ "CMN" , 0x42c0, 0xffc0, DATA_FORMAT5 },\r
\r
{ "CMP" , 0x2800, 0xf800, DATA_FORMAT3 },\r
{ "EOR" , 0x4040, 0xffc0, DATA_FORMAT5 },\r
\r
{ "LDMIA" , 0xc800, 0xf800, LOAD_STORE_MULTIPLE_FORMAT1 },\r
- { "LDR" , 0x6800, 0xf800, LOAD_STORE_FORMAT1 },\r
- { "LDR" , 0x5800, 0xfe00, LOAD_STORE_FORMAT2 },\r
+ { "LDR" , 0x6800, 0xf800, LOAD_STORE_FORMAT1 }, // LDR <Rt>, [<Rn> {,#<imm>}]\r
+ { "LDR" , 0x5800, 0xfe00, LOAD_STORE_FORMAT2 }, // STR <Rt>, [<Rn>, <Rm>]\r
{ "LDR" , 0x4800, 0xf800, LOAD_STORE_FORMAT3 },\r
- { "LDR" , 0x9800, 0xf800, LOAD_STORE_FORMAT4 },\r
- { "LDRB" , 0x7800, 0xf800, LOAD_STORE_FORMAT1 },\r
- { "LDRB" , 0x5c00, 0xfe00, LOAD_STORE_FORMAT2 },\r
- { "LDRH" , 0x8800, 0xf800, LOAD_STORE_FORMAT1 },\r
+ { "LDR" , 0x9800, 0xf800, LOAD_STORE_FORMAT4 }, // LDR <Rt>, [SP, #<imm>]\r
+ { "LDRB" , 0x7800, 0xf800, LOAD_STORE_FORMAT1_B },\r
+ { "LDRB" , 0x5c00, 0xfe00, LOAD_STORE_FORMAT2 }, // STR <Rt>, [<Rn>, <Rm>]\r
+ { "LDRH" , 0x8800, 0xf800, LOAD_STORE_FORMAT1_H },\r
{ "LDRH" , 0x7a00, 0xfe00, LOAD_STORE_FORMAT2 },\r
- { "LDRSB" , 0x5600, 0xfe00, LOAD_STORE_FORMAT2 },\r
+ { "LDRSB" , 0x5600, 0xfe00, LOAD_STORE_FORMAT2 }, // STR <Rt>, [<Rn>, <Rm>]\r
{ "LDRSH" , 0x5e00, 0xfe00, LOAD_STORE_FORMAT2 },\r
- \r
+\r
{ "MOVS", 0x0000, 0xffc0, DATA_FORMAT5 }, // LSL with imm5 == 0 is a MOVS, so this must go before LSL\r
{ "LSL" , 0x0000, 0xf800, DATA_FORMAT4 },\r
{ "LSL" , 0x4080, 0xffc0, DATA_FORMAT5 },\r
{ "LSR" , 0x0001, 0xf800, DATA_FORMAT4 },\r
{ "LSR" , 0x40c0, 0xffc0, DATA_FORMAT5 },\r
+ { "LSRS", 0x0800, 0xf800, DATA_FORMAT4 }, // LSRS <Rd>, <Rm>, #<imm5>\r
\r
{ "MOVS", 0x2000, 0xf800, DATA_FORMAT3 },\r
{ "MOV" , 0x1c00, 0xffc0, DATA_FORMAT3 },\r
{ "MUL" , 0x4340, 0xffc0, DATA_FORMAT5 },\r
{ "MVN" , 0x41c0, 0xffc0, DATA_FORMAT5 },\r
{ "NEG" , 0x4240, 0xffc0, DATA_FORMAT5 },\r
- { "ORR" , 0x4180, 0xffc0, DATA_FORMAT5 },\r
+ { "ORR" , 0x4300, 0xffc0, DATA_FORMAT5 },\r
{ "POP" , 0xbc00, 0xfe00, POP_FORMAT },\r
{ "PUSH", 0xb400, 0xfe00, PUSH_FORMAT },\r
\r
{ "SETEND" , 0xb650, 0xfff0, ENDIAN_FORMAT },\r
\r
{ "STMIA" , 0xc000, 0xf800, LOAD_STORE_MULTIPLE_FORMAT1 },\r
- { "STR" , 0x6000, 0xf800, LOAD_STORE_FORMAT1 },\r
- { "STR" , 0x5000, 0xfe00, LOAD_STORE_FORMAT2 },\r
- { "STR" , 0x4000, 0xf800, LOAD_STORE_FORMAT3 },\r
- { "STR" , 0x9000, 0xf800, LOAD_STORE_FORMAT4 },\r
- { "STRB" , 0x7000, 0xf800, LOAD_STORE_FORMAT1 },\r
- { "STRB" , 0x5800, 0xfe00, LOAD_STORE_FORMAT2 },\r
- { "STRH" , 0x8000, 0xf800, LOAD_STORE_FORMAT1 },\r
- { "STRH" , 0x5200, 0xfe00, LOAD_STORE_FORMAT2 },\r
+ { "STR" , 0x6000, 0xf800, LOAD_STORE_FORMAT1 }, // STR <Rt>, [<Rn> {,#<imm>}]\r
+ { "STR" , 0x5000, 0xfe00, LOAD_STORE_FORMAT2 }, // STR <Rt>, [<Rn>, <Rm>]\r
+ { "STR" , 0x9000, 0xf800, LOAD_STORE_FORMAT4 }, // STR <Rt>, [SP, #<imm>]\r
+ { "STRB" , 0x7000, 0xf800, LOAD_STORE_FORMAT1_B }, // STRB <Rt>, [<Rn>, #<imm5>]\r
+ { "STRB" , 0x5400, 0xfe00, LOAD_STORE_FORMAT2 }, // STRB <Rt>, [<Rn>, <Rm>]\r
+ { "STRH" , 0x8000, 0xf800, LOAD_STORE_FORMAT1_H }, // STRH <Rt>, [<Rn>{,#<imm>}]\r
+ { "STRH" , 0x5200, 0xfe00, LOAD_STORE_FORMAT2 }, // STRH <Rt>, [<Rn>, <Rm>]\r
\r
{ "SUB" , 0x1e00, 0xfe00, DATA_FORMAT2 },\r
{ "SUB" , 0x3800, 0xf800, DATA_FORMAT3 },\r
{ "SUB" , 0x1a00, 0xfe00, DATA_FORMAT1 },\r
{ "SUB" , 0xb080, 0xff80, DATA_FORMAT7 },\r
\r
+ { "SBC" , 0x4180, 0xffc0, DATA_FORMAT5 },\r
+\r
{ "SWI" , 0xdf00, 0xff00, IMMED_8 },\r
{ "SXTB", 0xb240, 0xffc0, DATA_FORMAT5 },\r
{ "SXTH", 0xb200, 0xffc0, DATA_FORMAT5 },\r
{ "TST" , 0x4200, 0xffc0, DATA_FORMAT5 },\r
{ "UXTB", 0xb2c0, 0xffc0, DATA_FORMAT5 },\r
- { "UXTH", 0xb280, 0xffc0, DATA_FORMAT5 }\r
+ { "UXTH", 0xb280, 0xffc0, DATA_FORMAT5 },\r
+\r
+ { "IT", 0xbf00, 0xff00, IT_BLOCK }\r
+\r
};\r
\r
THUMB_INSTRUCTIONS gOpThumb2[] = {\r
- { "B", 0xf0008000, 0xf800d000, B_T3 },\r
- { "B", 0xf0009000, 0xf800d000, B_T4 },\r
- { "BL", 0xf000d000, 0xf800d000, B_T4 },\r
- { "BLX", 0xf000c000, 0xf800d000, BL_T2 }\r
- \r
-#if 0 \r
- \r
- // 32-bit Thumb instructions op1 01\r
- \r
- // 1110 100x x0xx xxxx xxxx xxxx xxxx xxxx Load/store multiple\r
+//Instruct OpCode OpCode Mask Addressig Mode\r
+\r
+ { "ADR", 0xf2af0000, 0xfbff8000, ADR_THUMB2 }, // ADDR <Rd>, <label> ;Needs to go before ADDW\r
+ { "CMN", 0xf1100f00, 0xfff08f00, CMN_THUMB2 }, // CMN <Rn>, #<const> ;Needs to go before ADD\r
+ { "CMN", 0xeb100f00, 0xfff08f00, ADD_IMM5_2REG }, // CMN <Rn>, <Rm> {,<shift> #<const>}\r
+ { "CMP", 0xf1a00f00, 0xfff08f00, CMN_THUMB2 }, // CMP <Rn>, #<const>\r
+ { "TEQ", 0xf0900f00, 0xfff08f00, CMN_THUMB2 }, // CMP <Rn>, #<const>\r
+ { "TEQ", 0xea900f00, 0xfff08f00, ADD_IMM5_2REG }, // CMN <Rn>, <Rm> {,<shift> #<const>}\r
+ { "TST", 0xf0100f00, 0xfff08f00, CMN_THUMB2 }, // CMP <Rn>, #<const>\r
+ { "TST", 0xea100f00, 0xfff08f00, ADD_IMM5_2REG }, // TST <Rn>, <Rm> {,<shift> #<const>}\r
+\r
+ { "MOV", 0xf04f0000, 0xfbef8000, ADD_IMM12_1REG }, // MOV <Rd>, #<const>\r
+ { "MOVW", 0xf2400000, 0xfbe08000, THUMB2_IMM16 }, // MOVW <Rd>, #<const>\r
+ { "MOVT", 0xf2c00000, 0xfbe08000, THUMB2_IMM16 }, // MOVT <Rd>, #<const>\r
+\r
+ { "ADC", 0xf1400000, 0xfbe08000, ADD_IMM12 }, // ADC{S} <Rd>, <Rn>, #<const>\r
+ { "ADC", 0xeb400000, 0xffe08000, ADD_IMM5 }, // ADC{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "ADD", 0xf1000000, 0xfbe08000, ADD_IMM12 }, // ADD{S} <Rd>, <Rn>, #<const>\r
+ { "ADD", 0xeb000000, 0xffe08000, ADD_IMM5 }, // ADD{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "ADDW", 0xf2000000, 0xfbe08000, ADD_IMM12 }, // ADDW{S} <Rd>, <Rn>, #<const>\r
+ { "AND", 0xf0000000, 0xfbe08000, ADD_IMM12 }, // AND{S} <Rd>, <Rn>, #<const>\r
+ { "AND", 0xea000000, 0xffe08000, ADD_IMM5 }, // AND{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "BIC", 0xf0200000, 0xfbe08000, ADD_IMM12 }, // BIC{S} <Rd>, <Rn>, #<const>\r
+ { "BIC", 0xea200000, 0xffe08000, ADD_IMM5 }, // BIC{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "EOR", 0xf0800000, 0xfbe08000, ADD_IMM12 }, // EOR{S} <Rd>, <Rn>, #<const>\r
+ { "EOR", 0xea800000, 0xffe08000, ADD_IMM5 }, // EOR{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "ORN", 0xf0600000, 0xfbe08000, ADD_IMM12 }, // ORN{S} <Rd>, <Rn>, #<const>\r
+ { "ORN", 0xea600000, 0xffe08000, ADD_IMM5 }, // ORN{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "ORR", 0xf0400000, 0xfbe08000, ADD_IMM12 }, // ORR{S} <Rd>, <Rn>, #<const>\r
+ { "ORR", 0xea400000, 0xffe08000, ADD_IMM5 }, // ORR{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "RSB", 0xf1c00000, 0xfbe08000, ADD_IMM12 }, // RSB{S} <Rd>, <Rn>, #<const>\r
+ { "RSB", 0xebc00000, 0xffe08000, ADD_IMM5 }, // RSB{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "SBC", 0xf1600000, 0xfbe08000, ADD_IMM12 }, // SBC{S} <Rd>, <Rn>, #<const>\r
+ { "SBC", 0xeb600000, 0xffe08000, ADD_IMM5 }, // SBC{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+ { "SUB", 0xf1a00000, 0xfbe08000, ADD_IMM12 }, // SUB{S} <Rd>, <Rn>, #<const>\r
+ { "SUB", 0xeba00000, 0xffe08000, ADD_IMM5 }, // SUB{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}\r
+\r
+ { "ASR", 0xea4f0020, 0xffef8030, ASR_IMM5 }, // ARS <Rd>, <Rm> #<const>} imm3:imm2\r
+ { "ASR", 0xfa40f000, 0xffe0f0f0, ASR_3REG }, // ARS <Rd>, <Rn>, <Rm>\r
+ { "LSR", 0xea4f0010, 0xffef8030, ASR_IMM5 }, // LSR <Rd>, <Rm> #<const>} imm3:imm2\r
+ { "LSR", 0xfa20f000, 0xffe0f0f0, ASR_3REG }, // LSR <Rd>, <Rn>, <Rm>\r
+ { "ROR", 0xea4f0030, 0xffef8030, ASR_IMM5 }, // ROR <Rd>, <Rm> #<const>} imm3:imm2\r
+ { "ROR", 0xfa60f000, 0xffe0f0f0, ASR_3REG }, // ROR <Rd>, <Rn>, <Rm>\r
+\r
+ { "BFC", 0xf36f0000, 0xffff8010, BFC_THUMB2 }, // BFC <Rd>, #<lsb>, #<width>\r
+ { "BIC", 0xf3600000, 0xfff08010, BFC_THUMB2 }, // BIC <Rn>, <Rd>, #<lsb>, #<width>\r
+ { "SBFX", 0xf3400000, 0xfff08010, BFC_THUMB2 }, // SBFX <Rn>, <Rd>, #<lsb>, #<width>\r
+ { "UBFX", 0xf3c00000, 0xfff08010, BFC_THUMB2 }, // UBFX <Rn>, <Rd>, #<lsb>, #<width>\r
+\r
+ { "CPD", 0xee000000, 0xff000010, CPD_THUMB2 }, // CPD <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2>\r
+ { "CPD2", 0xfe000000, 0xff000010, CPD_THUMB2 }, // CPD <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2>\r
+\r
+ { "MRC", 0xee100000, 0xff100000, MRC_THUMB2 }, // MRC <coproc>,<opc1>,<Rt>,<CRn>,<CRm>,<opc2>\r
+ { "MRC2", 0xfe100000, 0xff100000, MRC_THUMB2 }, // MRC2 <coproc>,<opc1>,<Rt>,<CRn>,<CRm>,<opc2>\r
+ { "MRRC", 0xec500000, 0xfff00000, MRRC_THUMB2 }, // MRRC <coproc>,<opc1>,<Rt>,<Rt2>,<CRm>\r
+ { "MRRC2", 0xfc500000, 0xfff00000, MRRC_THUMB2 }, // MRR2 <coproc>,<opc1>,<Rt>,<Rt2>,<CRm>\r
+\r
+ { "MRS", 0xf3ef8000, 0xfffff0ff, THUMB2_MRS }, // MRS <Rd>, CPSR\r
+ { "MSR", 0xf3808000, 0xfff0fcff, THUMB2_MSR }, // MSR CPSR_fs, <Rn>\r
+\r
+ { "CLREX", 0xf3bf8f2f, 0xfffffff, THUMB2_NO_ARGS }, // CLREX\r
+\r
+ { "CLZ", 0xfab0f080, 0xfff0f0f0, THUMB2_2REGS }, // CLZ <Rd>,<Rm>\r
+ { "MOV", 0xec4f0000, 0xfff0f0f0, THUMB2_2REGS }, // MOV <Rd>,<Rm>\r
+ { "MOVS", 0xec5f0000, 0xfff0f0f0, THUMB2_2REGS }, // MOVS <Rd>,<Rm>\r
+ { "RBIT", 0xfb90f0a0, 0xfff0f0f0, THUMB2_2REGS }, // RBIT <Rd>,<Rm>\r
+ { "REV", 0xfb90f080, 0xfff0f0f0, THUMB2_2REGS }, // REV <Rd>,<Rm>\r
+ { "REV16", 0xfa90f090, 0xfff0f0f0, THUMB2_2REGS }, // REV16 <Rd>,<Rm>\r
+ { "REVSH", 0xfa90f0b0, 0xfff0f0f0, THUMB2_2REGS }, // REVSH <Rd>,<Rm>\r
+ { "RRX", 0xea4f0030, 0xfffff0f0, THUMB2_2REGS }, // RRX <Rd>,<Rm>\r
+ { "RRXS", 0xea5f0030, 0xfffff0f0, THUMB2_2REGS }, // RRXS <Rd>,<Rm>\r
+\r
+ { "MLA", 0xfb000000, 0xfff000f0, THUMB2_4REGS }, // MLA <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "MLS", 0xfb000010, 0xfff000f0, THUMB2_4REGS }, // MLA <Rd>, <Rn>, <Rm>, <Ra>\r
+\r
+\r
+ { "SMLABB", 0xfb100000, 0xfff000f0, THUMB2_4REGS }, // SMLABB <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLABT", 0xfb100010, 0xfff000f0, THUMB2_4REGS }, // SMLABT <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLABB", 0xfb100020, 0xfff000f0, THUMB2_4REGS }, // SMLATB <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLATT", 0xfb100030, 0xfff000f0, THUMB2_4REGS }, // SMLATT <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLAWB", 0xfb300000, 0xfff000f0, THUMB2_4REGS }, // SMLAWB <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLAWT", 0xfb300010, 0xfff000f0, THUMB2_4REGS }, // SMLAWT <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLSD", 0xfb400000, 0xfff000f0, THUMB2_4REGS }, // SMLSD <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLSDX", 0xfb400010, 0xfff000f0, THUMB2_4REGS }, // SMLSDX <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMMLA", 0xfb500000, 0xfff000f0, THUMB2_4REGS }, // SMMLA <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMMLAR", 0xfb500010, 0xfff000f0, THUMB2_4REGS }, // SMMLAR <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMMLS", 0xfb600000, 0xfff000f0, THUMB2_4REGS }, // SMMLS <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMMLSR", 0xfb600010, 0xfff000f0, THUMB2_4REGS }, // SMMLSR <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "USADA8", 0xfb700000, 0xfff000f0, THUMB2_4REGS }, // USADA8 <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLAD", 0xfb200000, 0xfff000f0, THUMB2_4REGS }, // SMLAD <Rd>, <Rn>, <Rm>, <Ra>\r
+ { "SMLADX", 0xfb200010, 0xfff000f0, THUMB2_4REGS }, // SMLADX <Rd>, <Rn>, <Rm>, <Ra>\r
+\r
+\r
+ { "B", 0xf0008000, 0xf800d000, B_T3 }, // B<c> <label>\r
+ { "B", 0xf0009000, 0xf800d000, B_T4 }, // B<c> <label>\r
+ { "BL", 0xf000d000, 0xf800d000, B_T4 }, // BL<c> <label>\r
+ { "BLX", 0xf000c000, 0xf800d000, BL_T2 }, // BLX<c> <label>\r
+\r
+ { "POP", 0xe8bd0000, 0xffff2000, POP_T2 }, // POP <registers>\r
+ { "POP", 0xf85d0b04, 0xffff0fff, POP_T3 }, // POP <register>\r
+ { "PUSH", 0xe8ad0000, 0xffffa000, POP_T2 }, // PUSH <registers>\r
+ { "PUSH", 0xf84d0d04, 0xffff0fff, POP_T3 }, // PUSH <register>\r
+ { "STM" , 0xe8800000, 0xffd0a000, STM_FORMAT }, // STM <Rn>{!},<registers>\r
+ { "STMDB", 0xe9800000, 0xffd0a000, STM_FORMAT }, // STMDB <Rn>{!},<registers>\r
+ { "LDM" , 0xe8900000, 0xffd02000, STM_FORMAT }, // LDM <Rn>{!},<registers>\r
+ { "LDMDB", 0xe9100000, 0xffd02000, STM_FORMAT }, // LDMDB <Rn>{!},<registers>\r
+\r
+ { "LDR", 0xf8d00000, 0xfff00000, LDM_REG_IMM12 }, // LDR <rt>, [<rn>, {, #<imm12>]}\r
+ { "LDRB", 0xf8900000, 0xfff00000, LDM_REG_IMM12 }, // LDRB <rt>, [<rn>, {, #<imm12>]}\r
+ { "LDRH", 0xf8b00000, 0xfff00000, LDM_REG_IMM12 }, // LDRH <rt>, [<rn>, {, #<imm12>]}\r
+ { "LDRSB", 0xf9900000, 0xfff00000, LDM_REG_IMM12 }, // LDRSB <rt>, [<rn>, {, #<imm12>]}\r
+ { "LDRSH", 0xf9b00000, 0xfff00000, LDM_REG_IMM12 }, // LDRSH <rt>, [<rn>, {, #<imm12>]}\r
+\r
+ { "LDR", 0xf85f0000, 0xff7f0000, LDM_REG_IMM12_SIGNED }, // LDR <Rt>, <label>\r
+ { "LDRB", 0xf81f0000, 0xff7f0000, LDM_REG_IMM12_SIGNED }, // LDRB <Rt>, <label>\r
+ { "LDRH", 0xf83f0000, 0xff7f0000, LDM_REG_IMM12_SIGNED }, // LDRH <Rt>, <label>\r
+ { "LDRSB", 0xf91f0000, 0xff7f0000, LDM_REG_IMM12_SIGNED }, // LDRSB <Rt>, <label>\r
+ { "LDRSH", 0xf93f0000, 0xff7f0000, LDM_REG_IMM12_SIGNED }, // LDRSB <Rt>, <label>\r
+\r
+ { "LDR", 0xf8500000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // LDR <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ { "LDRB", 0xf8100000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // LDRB <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ { "LDRH", 0xf8300000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // LDRH <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ { "LDRSB", 0xf9100000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // LDRSB <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ { "LDRSH", 0xf9300000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // LDRSH <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+\r
+ { "LDR", 0xf8500800, 0xfff00800, LDM_REG_IMM8 }, // LDR <rt>, [<rn>, {, #<imm8>]}\r
+ { "LDRBT", 0xf8100e00, 0xfff00f00, LDM_REG_IMM8 }, // LDRBT <rt>, [<rn>, {, #<imm8>]}\r
+ { "LDRHT", 0xf8300e00, 0xfff00f00, LDM_REG_IMM8 }, // LDRHT <rt>, [<rn>, {, #<imm8>]}\r
+ { "LDRSB", 0xf9100800, 0xfff00800, LDM_REG_IMM8 }, // LDRHT <rt>, [<rn>, {, #<imm8>]} {!} form?\r
+ { "LDRSBT",0xf9100e00, 0xfff00f00, LDM_REG_IMM8 }, // LDRHBT <rt>, [<rn>, {, #<imm8>]} {!} form?\r
+ { "LDRSH" ,0xf9300800, 0xfff00800, LDM_REG_IMM8 }, // LDRSH <rt>, [<rn>, {, #<imm8>]}\r
+ { "LDRSHT",0xf9300e00, 0xfff00f00, LDM_REG_IMM8 }, // LDRSHT <rt>, [<rn>, {, #<imm8>]}\r
+ { "LDRT", 0xf8500e00, 0xfff00f00, LDM_REG_IMM8 }, // LDRT <rt>, [<rn>, {, #<imm8>]}\r
+\r
+ { "LDRD", 0xe8500000, 0xfe500000, LDRD_REG_IMM8_SIGNED }, // LDRD <rt>, <rt2>, [<rn>, {, #<imm8>]}{!}\r
+ { "LDRD", 0xe8500000, 0xfe500000, LDRD_REG_IMM8 }, // LDRD <rt>, <rt2>, <label>\r
+\r
+ { "LDREX", 0xe8500f00, 0xfff00f00, LDM_REG_IMM8 }, // LDREX <Rt>, [Rn, {#imm8}]]\r
+ { "LDREXB", 0xe8d00f4f, 0xfff00fff, LDREXB }, // LDREXB <Rt>, [<Rn>]\r
+ { "LDREXH", 0xe8d00f5f, 0xfff00fff, LDREXB }, // LDREXH <Rt>, [<Rn>]\r
+\r
+ { "LDREXD", 0xe8d00f4f, 0xfff00fff, LDREXD }, // LDREXD <Rt>, <Rt2>, [<Rn>]\r
+\r
+ { "STR", 0xf8c00000, 0xfff00000, LDM_REG_IMM12 }, // STR <rt>, [<rn>, {, #<imm12>]}\r
+ { "STRB", 0xf8800000, 0xfff00000, LDM_REG_IMM12 }, // STRB <rt>, [<rn>, {, #<imm12>]}\r
+ { "STRH", 0xf8a00000, 0xfff00000, LDM_REG_IMM12 }, // STRH <rt>, [<rn>, {, #<imm12>]}\r
+\r
+ { "STR", 0xf8400000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // STR <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ { "STRB", 0xf8000000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // STRB <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ { "STRH", 0xf8200000, 0xfff00fc0, LDM_REG_INDIRECT_LSL }, // STRH <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+\r
+ { "STR", 0xf8400800, 0xfff00800, LDM_REG_IMM8 }, // STR <rt>, [<rn>, {, #<imm8>]}\r
+ { "STRH", 0xf8200800, 0xfff00800, LDM_REG_IMM8 }, // STRH <rt>, [<rn>, {, #<imm8>]}\r
+ { "STRBT", 0xf8000e00, 0xfff00f00, LDM_REG_IMM8 }, // STRBT <rt>, [<rn>, {, #<imm8>]}\r
+ { "STRHT", 0xf8200e00, 0xfff00f00, LDM_REG_IMM8 }, // STRHT <rt>, [<rn>, {, #<imm8>]}\r
+ { "STRT", 0xf8400e00, 0xfff00f00, LDM_REG_IMM8 }, // STRT <rt>, [<rn>, {, #<imm8>]}\r
+\r
+ { "STRD", 0xe8400000, 0xfe500000, LDRD_REG_IMM8_SIGNED }, // STRD <rt>, <rt2>, [<rn>, {, #<imm8>]}{!}\r
+\r
+ { "STREX", 0xe8400f00, 0xfff00f00, LDM_REG_IMM8 }, // STREX <Rt>, [Rn, {#imm8}]]\r
+ { "STREXB", 0xe8c00f4f, 0xfff00fff, LDREXB }, // STREXB <Rd>, <Rt>, [<Rn>]\r
+ { "STREXH", 0xe8c00f5f, 0xfff00fff, LDREXB }, // STREXH <Rd>, <Rt>, [<Rn>]\r
+\r
+ { "STREXD", 0xe8d00f4f, 0xfff00fff, LDREXD }, // STREXD <Rd>, <Rt>, <Rt2>, [<Rn>]\r
+\r
{ "SRSDB", 0xe80dc000, 0xffdffff0, SRS_FORMAT }, // SRSDB<c> SP{!},#<mode>\r
- { "SRS" , 0xe98dc000, 0xffdffff0, SRS_IA_FORMAT }, // SRS{IA}<c> SP{!},#<mode>\r
+ { "SRS" , 0xe98dc000, 0xffdffff0, SRS_FORMAT }, // SRS{IA}<c> SP{!},#<mode>\r
{ "RFEDB", 0xe810c000, 0xffd0ffff, RFE_FORMAT }, // RFEDB<c> <Rn>{!}\r
- { "RFE" , 0xe990c000, 0xffd0ffff, RFE_IA_FORMAT }, // RFE{IA}<c> <Rn>{!}\r
- \r
- { "STM" , 0xe8800000, 0xffd00000, STM_FORMAT }, // STM<c>.W <Rn>{!},<registers>\r
- { "LDM" , 0xe8900000, 0xffd00000, STM_FORMAT }, // LDR<c>.W <Rt>,[<Rn>,<Rm>{,LSL #<imm2>}]\r
- { "POP" , 0xe8bd0000, 0xffff2000, REGLIST_FORMAT }, // POP<c>.W <registers> >1 register\r
- { "POP" , 0xf85d0b04, 0xffff0fff, RT_FORMAT }, // POP<c>.W <registers> 1 register\r
-\r
- { "STMDB", 0xe9000000, 0xffd00000, STM_FORMAT }, // STMDB\r
- { "PUSH" , 0xe8bd0000, 0xffffa000, REGLIST_FORMAT }, // PUSH<c>.W <registers> >1 register\r
- { "PUSH" , 0xf84d0b04, 0xffff0fff, RT_FORMAT }, // PUSH<c>.W <registers> 1 register\r
- { "LDMDB", 0xe9102000, 0xffd02000, STM_FORMAT }, // LDMDB<c> <Rn>{!},<registers>\r
-\r
- // 1110 100x x1xx xxxx xxxx xxxx xxxx xxxx Load/store dual,\r
- { "STREX" , 0xe0400000, 0xfff000f0, 3REG_IMM8_FORMAT }, // STREX<c> <Rd>,<Rt>,[<Rn>{,#<imm>}]\r
- { "STREXB", 0xe8c00f40, 0xfff00ff0, 3REG_FORMAT }, // STREXB<c> <Rd>,<Rt>,[<Rn>]\r
- { "STREXD", 0xe8c00070, 0xfff000f0, 4REG_FORMAT }, // STREXD<c> <Rd>,<Rt>,<Rt2>,[<Rn>]\r
- { "STREXH", 0xe8c00f70, 0xfff00ff0, 3REG_FORMAT }, // STREXH<c> <Rd>,<Rt>,[<Rn>]\r
- { "STRH", 0xf8c00000, 0xfff00000, 2REG_IMM8_FORMAT }, // STRH<c>.W <Rt>,[<Rn>{,#<imm12>}]\r
- { "STRH", 0xf8200000, 0xfff00000, }, // STRH<c>.W <Rt>,[<Rn>,<Rm>{,LSL #<imm2>}]\r
-\r
-\r
-\r
- // 1110 101x xxxx xxxx xxxx xxxx xxxx xxxx Data-processing\r
- // 1110 11xx xxxx xxxx xxxx xxxx xxxx xxxx Coprocessor\r
- \r
- // 1111 0x0x xxxx xxxx 0xxx xxxx xxxx xxxx Data-processing modified immediate\r
- // 1111 0x1x xxxx xxxx 0xxx xxxx xxxx xxxx Data-processing plain immediate\r
- // 1111 0xxx xxxx xxxx 1xxx xxxx xxxx xxxx Branches\r
- \r
- // 1111 1000 xxx0 xxxx xxxx xxxx xxxx xxxx Store single data item\r
- // 1111 1001 xxx0 xxxx xxxx xxxx xxxx xxxx SIMD or load/store\r
- // 1111 100x x001 xxxx xxxx xxxx xxxx xxxx Load byte, memory hints \r
- // 1111 100x x011 xxxx xxxx xxxx xxxx xxxx Load halfword, memory hints\r
- // 1111 100x x101 xxxx xxxx xxxx xxxx xxxx Load word \r
-\r
- // 1111 1 010 xxxx xxxx xxxx xxxx xxxx xxxx Data-processing register\r
- // 1111 1 011 0xxx xxxx xxxx xxxx xxxx xxxx Multiply\r
- // 1111 1 011 1xxx xxxx xxxx xxxx xxxx xxxx Long Multiply\r
- // 1111 1 1xx xxxx xxxx xxxx xxxx xxxx xxxx Coprocessor \r
-#endif\r
+ { "RFE" , 0xe990c000, 0xffd0ffff, RFE_FORMAT } // RFE{IA}<c> <Rn>{!}\r
+};\r
+\r
+CHAR8 *gShiftType[] = {\r
+ "LSL",\r
+ "LSR",\r
+ "ASR",\r
+ "ROR"\r
};\r
\r
CHAR8 mThumbMregListStr[4*15 + 1];\r
)\r
{\r
UINTN Index, Start, End;\r
- CHAR8 *Str;\r
BOOLEAN First;\r
- \r
- Str = mThumbMregListStr;\r
- *Str = '\0';\r
- AsciiStrCat (Str, "{");\r
- // R0 - R7, PC\r
+\r
+ mThumbMregListStr[0] = '\0';\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, "{");\r
+\r
for (Index = 0, First = TRUE; Index <= 15; Index++) {\r
if ((RegBitMask & (1 << Index)) != 0) {\r
Start = End = Index;\r
for (Index++; ((RegBitMask & (1 << Index)) != 0) && (Index <= 9); Index++) {\r
End = Index;\r
}\r
- \r
+\r
if (!First) {\r
- AsciiStrCat (Str, ",");\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, ",");\r
} else {\r
First = FALSE;\r
}\r
- \r
+\r
if (Start == End) {\r
- AsciiStrCat (Str, gReg[Start]);\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, gReg[Start]);\r
} else {\r
- AsciiStrCat (Str, gReg[Start]);\r
- AsciiStrCat (Str, "-");\r
- AsciiStrCat (Str, gReg[End]);\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, gReg[Start]);\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, "-");\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, gReg[End]);\r
}\r
}\r
}\r
if (First) {\r
- AsciiStrCat (Str, "ERROR");\r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, "ERROR");\r
}\r
- AsciiStrCat (Str, "}");\r
- \r
+ AsciiStrCatS (mThumbMregListStr, sizeof mThumbMregListStr, "}");\r
+\r
// BugBug: Make caller pass in buffer it is cleaner\r
return mThumbMregListStr;\r
}\r
if (((Data & TopBit) == 0) || (TopBit == BIT31)) {\r
return Data;\r
}\r
- \r
+\r
do {\r
TopBit <<= 1;\r
- Data |= TopBit; \r
+ Data |= TopBit;\r
} while ((TopBit & BIT31) != BIT31);\r
\r
return Data;\r
}\r
\r
+//\r
+// Some instructions specify the PC is always considered aligned\r
+// The PC is after the instruction that is excuting. So you pass\r
+// in the instruction address and you get back the aligned answer\r
+//\r
+UINT32\r
+PCAlign4 (\r
+ IN UINT32 Data\r
+ )\r
+{\r
+ return (Data + 4) & 0xfffffffc;\r
+}\r
+\r
/**\r
- Place a dissasembly of of **OpCodePtr into buffer, and update OpCodePtr to \r
- point to next instructin. \r
- \r
- We cheat and only decode instructions that access \r
+ Place a dissasembly of of **OpCodePtr into buffer, and update OpCodePtr to\r
+ point to next instructin.\r
+\r
+ We cheat and only decode instructions that access\r
memory. If the instruction is not found we dump the instruction in hex.\r
- \r
- @param OpCodePtrPtr Pointer to pointer of ARM Thumb instruction to disassemble. \r
+\r
+ @param OpCodePtrPtr Pointer to pointer of ARM Thumb instruction to disassemble.\r
@param Buf Buffer to sprintf disassembly into.\r
- @param Size Size of Buf in bytes. \r
+ @param Size Size of Buf in bytes.\r
@param Extended TRUE dump hex for instruction too.\r
- \r
+\r
**/\r
VOID\r
DisassembleThumbInstruction (\r
IN UINT16 **OpCodePtrPtr,\r
OUT CHAR8 *Buf,\r
OUT UINTN Size,\r
+ OUT UINT32 *ItBlock,\r
IN BOOLEAN Extended\r
)\r
{\r
UINT32 OpCode32;\r
UINT32 Index;\r
UINT32 Offset;\r
- UINT16 Rd, Rn, Rm;\r
+ UINT16 Rd, Rn, Rm, Rt, Rt2;\r
BOOLEAN H1, H2, imod;\r
- UINT32 PC, Target;\r
+ //BOOLEAN ItFlag;\r
+ UINT32 PC, Target, msbit, lsbit;\r
CHAR8 *Cond;\r
- BOOLEAN S, J1, J2;\r
+ BOOLEAN S, J1, J2, P, U, W;\r
+ UINT32 coproc, opc1, opc2, CRd, CRn, CRm;\r
+ UINT32 Mask;\r
\r
OpCodePtr = *OpCodePtrPtr;\r
OpCode = **OpCodePtrPtr;\r
- \r
+\r
// Thumb2 is a stream of 16-bit instructions not a 32-bit instruction.\r
OpCode32 = (((UINT32)OpCode) << 16) | *(OpCodePtr + 1);\r
\r
\r
// Increment by the minimum instruction size, Thumb2 could be bigger\r
*OpCodePtrPtr += 1;\r
- \r
+\r
+ // Manage IT Block ItFlag TRUE means we are in an IT block\r
+ /*if (*ItBlock != 0) {\r
+ ItFlag = TRUE;\r
+ *ItBlock -= 1;\r
+ } else {\r
+ ItFlag = FALSE;\r
+ }*/\r
+\r
for (Index = 0; Index < sizeof (gOpThumb)/sizeof (THUMB_INSTRUCTIONS); Index++) {\r
if ((OpCode & gOpThumb[Index].Mask) == gOpThumb[Index].OpCode) {\r
if (Extended) {\r
- Offset = AsciiSPrint (Buf, Size, "0x%04x %-6a", OpCode, gOpThumb[Index].Start); \r
+ Offset = AsciiSPrint (Buf, Size, "0x%04x %-6a", OpCode, gOpThumb[Index].Start);\r
} else {\r
- Offset = AsciiSPrint (Buf, Size, "%-6a", gOpThumb[Index].Start); \r
+ Offset = AsciiSPrint (Buf, Size, "%-6a", gOpThumb[Index].Start);\r
}\r
switch (gOpThumb[Index].AddressMode) {\r
case LOAD_STORE_FORMAT1:\r
// A6.5.1 <Rd>, [<Rn>, #<5_bit_offset>]\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [r%d #0x%x]", Rd, Rn, (OpCode >> 4) & 0x7c); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [r%d #0x%x]", Rd, Rn, (OpCode >> 4) & 0x7c);\r
+ return;\r
+ case LOAD_STORE_FORMAT1_H:\r
+ // A6.5.1 <Rd>, [<Rn>, #<5_bit_offset>]\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [r%d #0x%x]", Rd, Rn, (OpCode >> 5) & 0x3e);\r
+ return;\r
+ case LOAD_STORE_FORMAT1_B:\r
+ // A6.5.1 <Rd>, [<Rn>, #<5_bit_offset>]\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [r%d #0x%x]", Rd, Rn, (OpCode >> 6) & 0x1f);\r
return;\r
+\r
case LOAD_STORE_FORMAT2:\r
// A6.5.1 <Rd>, [<Rn>, <Rm>]\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [r%d, r%d]", Rd, Rn, Rm); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [r%d, r%d]", Rd, Rn, Rm);\r
return;\r
case LOAD_STORE_FORMAT3:\r
// A6.5.1 <Rd>, [PC, #<8_bit_offset>]\r
Target = (OpCode & 0xff) << 2;\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [pc, #0x%x] ;0x%08x", (OpCode >> 8) & 7, Target, PC + 4 + Target); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [pc, #0x%x] ;0x%08x", (OpCode >> 8) & 7, Target, PCAlign4 (PC) + Target);\r
return;\r
case LOAD_STORE_FORMAT4:\r
// Rt, [SP, #imm8]\r
Target = (OpCode & 0xff) << 2;\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [sp, #0x%x]", (OpCode >> 8) & 7, Target, PC + 3 + Target); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, [sp, #0x%x]", (OpCode >> 8) & 7, Target);\r
return;\r
- \r
+\r
case LOAD_STORE_MULTIPLE_FORMAT1:\r
// <Rn>!, {r0-r7}\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d!, %a", (OpCode >> 8) & 7, ThumbMRegList (OpCode & 0xff)); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d!, %a", (OpCode >> 8) & 7, ThumbMRegList (OpCode & 0xff));\r
return;\r
- \r
+\r
case POP_FORMAT:\r
// POP {r0-r7,pc}\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " %a", ThumbMRegList ((OpCode & 0xff) | ((OpCode & BIT8) == BIT8 ? BIT15 : 0))); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", ThumbMRegList ((OpCode & 0xff) | ((OpCode & BIT8) == BIT8 ? BIT15 : 0)));\r
return;\r
\r
case PUSH_FORMAT:\r
// PUSH {r0-r7,lr}\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " %a", ThumbMRegList ((OpCode & 0xff) | ((OpCode & BIT8) == BIT8 ? BIT14 : 0))); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", ThumbMRegList ((OpCode & 0xff) | ((OpCode & BIT8) == BIT8 ? BIT14 : 0)));\r
return;\r
\r
- \r
+\r
case IMMED_8:\r
// A6.7 <immed_8>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%x", OpCode & 0xff); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%x", OpCode & 0xff);\r
return;\r
\r
case CONDITIONAL_BRANCH:\r
Cond = gCondition[(OpCode >> 8) & 0xf];\r
Buf[Offset-5] = *Cond++;\r
Buf[Offset-4] = *Cond;\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%04x", PC + 4 + SignExtend32 ((OpCode & 0xff) << 1, BIT8)); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%04x", PC + 4 + SignExtend32 ((OpCode & 0xff) << 1, BIT8));\r
return;\r
case UNCONDITIONAL_BRANCH_SHORT:\r
// A6.3.2 B <target_address>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%04x", PC + 4 + SignExtend32 ((OpCode & 0x3ff) << 1, BIT11)); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%04x", PC + 4 + SignExtend32 ((OpCode & 0x3ff) << 1, BIT11));\r
return;\r
- \r
+\r
case BRANCH_EXCHANGE:\r
// A6.3.3 BX|BLX <Rm>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " %a", gReg[Rn | (H2 ? 8:0)]); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", gReg[Rn | (H2 ? 8:0)]);\r
return;\r
\r
case DATA_FORMAT1:\r
// A6.4.3 <Rd>, <Rn>, <Rm>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d, r%d", Rd, Rn, Rm); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d, r%d", Rd, Rn, Rm);\r
return;\r
case DATA_FORMAT2:\r
// A6.4.3 <Rd>, <Rn>, #3_bit_immed\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d, 0x%x", Rd, Rn, Rm); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d, 0x%x", Rd, Rn, Rm);\r
return;\r
case DATA_FORMAT3:\r
// A6.4.3 <Rd>|<Rn>, #imm8\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, #0x%x", (OpCode >> 8) & 7, OpCode & 0xff); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, #0x%x", (OpCode >> 8) & 7, OpCode & 0xff);\r
return;\r
case DATA_FORMAT4:\r
// A6.4.3 <Rd>|<Rm>, #immed_5\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d, 0x%x", Rn, Rd, (OpCode >> 6) & 0x1f); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d, 0x%x", Rn, Rd, (OpCode >> 6) & 0x1f);\r
return;\r
case DATA_FORMAT5:\r
// A6.4.3 <Rd>|<Rm>, <Rm>|<Rs>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d", Rd, Rn); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, r%d", Rd, Rn);\r
return;\r
case DATA_FORMAT6_SP:\r
// A6.4.3 <Rd>, <reg>, #<8_Bit_immed>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, sp, 0x%x", (OpCode >> 8) & 7, (OpCode & 0xff) << 2); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, sp, 0x%x", (OpCode >> 8) & 7, (OpCode & 0xff) << 2);\r
return;\r
case DATA_FORMAT6_PC:\r
// A6.4.3 <Rd>, <reg>, #<8_Bit_immed>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, pc, 0x%x", (OpCode >> 8) & 7, (OpCode & 0xff) << 2); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " r%d, pc, 0x%x", (OpCode >> 8) & 7, (OpCode & 0xff) << 2);\r
return;\r
case DATA_FORMAT7:\r
// A6.4.3 SP, SP, #<7_Bit_immed>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " sp, sp, 0x%x", (OpCode & 0x7f)*4); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " sp, sp, 0x%x", (OpCode & 0x7f)*4);\r
return;\r
case DATA_FORMAT8:\r
// A6.4.3 <Rd>|<Rn>, <Rm>\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[Rd | (H1 ? 8:0)], gReg[Rn | (H2 ? 8:0)]); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[Rd | (H1 ? 8:0)], gReg[Rn | (H2 ? 8:0)]);\r
return;\r
- \r
+\r
case CPS_FORMAT:\r
// A7.1.24\r
- AsciiSPrint (&Buf[Offset], Size - Offset, "%a %a%a%a", imod ? "ID":"IE", ((OpCode & BIT2) == 0) ? "":"a", ((OpCode & BIT1) == 0) ? "":"i", ((OpCode & BIT0) == 0) ? "":"f"); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, "%a %a%a%a", imod ? "ID":"IE", ((OpCode & BIT2) == 0) ? "":"a", ((OpCode & BIT1) == 0) ? "":"i", ((OpCode & BIT0) == 0) ? "":"f");\r
return;\r
\r
case ENDIAN_FORMAT:\r
// A7.1.24\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " %a", (OpCode & BIT3) == 0 ? "LE":"BE"); \r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", (OpCode & BIT3) == 0 ? "LE":"BE");\r
+ return;\r
+\r
+ case DATA_CBZ:\r
+ // CB{N}Z <Rn>, <Lable>\r
+ Target = ((OpCode >> 2) & 0x3e) | (((OpCode & BIT9) == BIT9) ? BIT6 : 0);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %08x", gReg[Rd], PC + 4 + Target);\r
+ return;\r
+\r
+ case ADR_FORMAT:\r
+ // ADR <Rd>, <Label>\r
+ Target = (OpCode & 0xff) << 2;\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %08x", gReg[(OpCode >> 8) & 7], PCAlign4 (PC) + Target);\r
+ return;\r
+\r
+ case IT_BLOCK:\r
+ // ITSTATE = cond:mask OpCode[7:4]:OpCode[3:0]\r
+ // ITSTATE[7:5] == cond[3:1]\r
+ // ITSTATE[4] == 1st Instruction cond[0]\r
+ // ITSTATE[3] == 2st Instruction cond[0]\r
+ // ITSTATE[2] == 3st Instruction cond[0]\r
+ // ITSTATE[1] == 4st Instruction cond[0]\r
+ // ITSTATE[0] == 1 4 instruction IT block. 0 means 0,1,2 or 3 instructions\r
+ // 1st one in ITSTATE low bits defines the number of instructions\r
+ Mask = (OpCode & 0xf);\r
+ if ((Mask & 0x1) == 0x1) {\r
+ *ItBlock = 4;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, "%a%a%a", (Mask & BIT3)?"T":"E", (Mask & BIT2)?"T":"E", (Mask & BIT1)?"T":"E");\r
+ } else if ((OpCode & 0x3) == 0x2) {\r
+ *ItBlock = 3;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, "%a%a", (Mask & BIT3)?"T":"E", (Mask & BIT2)?"T":"E");\r
+ } else if ((OpCode & 0x7) == 0x4) {\r
+ *ItBlock = 2;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, "%a", (Mask & BIT3)?"T":"E");\r
+ } else if ((OpCode & 0xf) == 0x8) {\r
+ *ItBlock = 1;\r
+ }\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", gCondition[(OpCode >> 4) & 0xf]);\r
return;\r
}\r
}\r
}\r
\r
- \r
+\r
// Thumb2 are 32-bit instructions\r
*OpCodePtrPtr += 1;\r
+ Rt = (OpCode32 >> 12) & 0xf;\r
+ Rt2 = (OpCode32 >> 8) & 0xf;\r
+ Rd = (OpCode32 >> 8) & 0xf;\r
+ Rm = (OpCode32 & 0xf);\r
+ Rn = (OpCode32 >> 16) & 0xf;\r
for (Index = 0; Index < sizeof (gOpThumb2)/sizeof (THUMB_INSTRUCTIONS); Index++) {\r
if ((OpCode32 & gOpThumb2[Index].Mask) == gOpThumb2[Index].OpCode) {\r
if (Extended) {\r
- Offset = AsciiSPrint (Buf, Size, "0x%04x %-6a", OpCode32, gOpThumb2[Index].Start); \r
+ Offset = AsciiSPrint (Buf, Size, "0x%04x %-6a", OpCode32, gOpThumb2[Index].Start);\r
} else {\r
- Offset = AsciiSPrint (Buf, Size, " %-6a", gOpThumb2[Index].Start); \r
+ Offset = AsciiSPrint (Buf, Size, " %-6a", gOpThumb2[Index].Start);\r
}\r
switch (gOpThumb2[Index].AddressMode) {\r
case B_T3:\r
Buf[Offset-4] = *Cond;\r
// S:J2:J1:imm6:imm11:0\r
Target = ((OpCode32 << 1) & 0xffe) + ((OpCode32 >> 4) & 0x3f000);\r
- Target |= (OpCode & BIT11) ? BIT18 : 0; // J2\r
- Target |= (OpCode & BIT13) ? BIT17 : 0; // J1\r
- Target |= (OpCode & BIT26) ? BIT19 : 0; // S\r
- Target = SignExtend32 (Target, BIT19);\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%08x", Target); \r
+ Target |= ((OpCode32 & BIT11) == BIT11)? BIT19 : 0; // J2\r
+ Target |= ((OpCode32 & BIT13) == BIT13)? BIT18 : 0; // J1\r
+ Target |= ((OpCode32 & BIT26) == BIT26)? BIT20 : 0; // S\r
+ Target = SignExtend32 (Target, BIT20);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%08x", PC + 4 + Target);\r
return;\r
case B_T4:\r
// S:I1:I2:imm10:imm11:0\r
Target = ((OpCode32 << 1) & 0xffe) + ((OpCode32 >> 4) & 0x3ff000);\r
- S = (OpCode & BIT26);\r
- J1 = (OpCode & BIT13);\r
- J2 = (OpCode & BIT11);\r
- Target |= !(J2 ^ S) ? BIT21 : 0; // I2\r
- Target |= !(J1 ^ S) ? BIT22 : 0; // I1\r
- Target |= (OpCode & BIT26) ? BIT23 : 0; // S\r
- Target = SignExtend32 (Target, BIT23);\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%08x", Target); \r
+ S = (OpCode32 & BIT26) == BIT26;\r
+ J1 = (OpCode32 & BIT13) == BIT13;\r
+ J2 = (OpCode32 & BIT11) == BIT11;\r
+ Target |= (!(J2 ^ S) ? BIT22 : 0); // I2\r
+ Target |= (!(J1 ^ S) ? BIT23 : 0); // I1\r
+ Target |= (S ? BIT24 : 0); // S\r
+ Target = SignExtend32 (Target, BIT24);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%08x", PC + 4 + Target);\r
return;\r
\r
case BL_T2:\r
- // S:I1:I2:imm10:imm11:0\r
- Target = ((OpCode32 << 2) & 0x1ffc) + ((OpCode32 >> 3) & 0x7fe000);\r
- S = (OpCode & BIT26);\r
- J1 = (OpCode & BIT13);\r
- J2 = (OpCode & BIT11);\r
- Target |= !(J2 ^ S) ? BIT22 : 0; // I2\r
- Target |= !(J1 ^ S) ? BIT23 : 0; // I1\r
- Target |= (OpCode & BIT26) ? BIT24 : 0; // S\r
- Target = SignExtend32 (Target, BIT24);\r
- AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%08x", Target); \r
+ // BLX S:I1:I2:imm10:imm11:0\r
+ Target = ((OpCode32 << 1) & 0xffc) + ((OpCode32 >> 4) & 0x3ff000);\r
+ S = (OpCode32 & BIT26) == BIT26;\r
+ J1 = (OpCode32 & BIT13) == BIT13;\r
+ J2 = (OpCode32 & BIT11) == BIT11;\r
+ Target |= (!(J2 ^ S) ? BIT23 : 0); // I2\r
+ Target |= (!(J1 ^ S) ? BIT24 : 0); // I1\r
+ Target |= (S ? BIT25 : 0); // S\r
+ Target = SignExtend32 (Target, BIT25);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " 0x%08x", PCAlign4 (PC) + Target);\r
+ return;\r
+\r
+ case POP_T2:\r
+ // <reglist> some must be zero, handled in table\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", ThumbMRegList (OpCode32 & 0xffff));\r
return;\r
+\r
+ case POP_T3:\r
+ // <register>\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a", gReg[(OpCode32 >> 12) & 0xf]);\r
+ return;\r
+\r
+ case STM_FORMAT:\r
+ // <Rn>{!}, <registers>\r
+ W = (OpCode32 & BIT21) == BIT21;\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a%a, %a", gReg[(OpCode32 >> 16) & 0xf], W ? "!":"", ThumbMRegList (OpCode32 & 0xffff));\r
+ return;\r
+\r
+ case LDM_REG_IMM12_SIGNED:\r
+ // <rt>, <label>\r
+ Target = OpCode32 & 0xfff;\r
+ if ((OpCode32 & BIT23) == 0) {\r
+ // U == 0 means subtrack, U == 1 means add\r
+ Target = -Target;\r
+ }\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[(OpCode32 >> 12) & 0xf], PCAlign4 (PC) + Target);\r
+ return;\r
+\r
+ case LDM_REG_INDIRECT_LSL:\r
+ // <rt>, [<rn>, <rm> {, LSL #<imm2>]}\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " %a, [%a, %a", gReg[Rt], gReg[Rn], gReg[Rm]);\r
+ if (((OpCode32 >> 4) & 3) == 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, "]");\r
+ } else {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", LSL #%d]", (OpCode32 >> 4) & 3);\r
+ }\r
+ return;\r
+\r
+ case LDM_REG_IMM12:\r
+ // <rt>, [<rn>, {, #<imm12>]}\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " %a, [%a", gReg[Rt], gReg[Rn]);\r
+ if ((OpCode32 & 0xfff) == 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, "]");\r
+ } else {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", #0x%x]", OpCode32 & 0xfff);\r
+ }\r
+ return;\r
+\r
+ case LDM_REG_IMM8:\r
+ // <rt>, [<rn>, {, #<imm8>}]{!}\r
+ W = (OpCode32 & BIT8) == BIT8;\r
+ U = (OpCode32 & BIT9) == BIT9;\r
+ P = (OpCode32 & BIT10) == BIT10;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " %a, [%a", gReg[Rt], gReg[Rn]);\r
+ if (P) {\r
+ if ((OpCode32 & 0xff) == 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, "]%a", W?"!":"");\r
+ } else {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", #%a0x%x]%a", U?"":"-" , OpCode32 & 0xff, W?"!":"");\r
+ }\r
+ } else {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, "], #%a0x%x", U?"":"-", OpCode32 & 0xff);\r
+ }\r
+ return;\r
+\r
+ case LDRD_REG_IMM8_SIGNED:\r
+ // LDRD <rt>, <rt2>, [<rn>, {, #<imm8>]}{!}\r
+ P = (OpCode32 & BIT24) == BIT24; // index = P\r
+ U = (OpCode32 & BIT23) == BIT23;\r
+ W = (OpCode32 & BIT21) == BIT21;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, [%a", gReg[Rt], gReg[Rt2], gReg[Rn]);\r
+ if (P) {\r
+ if ((OpCode32 & 0xff) == 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, "]");\r
+ } else {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", #%a0x%x]%a", U?"":"-", (OpCode32 & 0xff) << 2, W?"!":"");\r
+ }\r
+ } else {\r
+ if ((OpCode32 & 0xff) != 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", #%a0x%x", U?"":"-", (OpCode32 & 0xff) << 2);\r
+ }\r
+ }\r
+ return;\r
+\r
+ case LDRD_REG_IMM8:\r
+ // LDRD <rt>, <rt2>, <label>\r
+ Target = (OpCode32 & 0xff) << 2;\r
+ if ((OpCode32 & BIT23) == 0) {\r
+ // U == 0 means subtrack, U == 1 means add\r
+ Target = -Target;\r
+ }\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, %a", gReg[Rt], gReg[Rt2], PC + 4 + Target);\r
+ return;\r
+\r
+ case LDREXB:\r
+ // LDREXB <Rt>, [Rn]\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, [%a]", gReg[Rt], gReg[Rn]);\r
+ return;\r
+\r
+ case LDREXD:\r
+ // LDREXD <Rt>, <Rt2>, [<Rn>]\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, ,%a, [%a]", gReg[Rt], gReg[Rt2], gReg[Rn]);\r
+ return;\r
+\r
+ case SRS_FORMAT:\r
+ // SP{!}, #<mode>\r
+ W = (OpCode32 & BIT21) == BIT21;\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " SP%a, #0x%x", W?"!":"", OpCode32 & 0x1f);\r
+ return;\r
+\r
+ case RFE_FORMAT:\r
+ // <Rn>{!}\r
+ W = (OpCode32 & BIT21) == BIT21;\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a%a, #0x%x", gReg[Rn], W?"!":"");\r
+ return;\r
+\r
+ case ADD_IMM12:\r
+ // ADD{S} <Rd>, <Rn>, #<const> i:imm3:imm8\r
+ if ((OpCode32 & BIT20) == BIT20) {\r
+ Buf[Offset - 3] = 'S'; // assume %-6a\r
+ }\r
+ Target = (OpCode32 & 0xff) | ((OpCode32 >> 4) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, #0x%x", gReg[Rd], gReg[Rn], Target);\r
+ return;\r
+\r
+ case ADD_IMM12_1REG:\r
+ // MOV{S} <Rd>, #<const> i:imm3:imm8\r
+ if ((OpCode32 & BIT20) == BIT20) {\r
+ Buf[Offset - 3] = 'S'; // assume %-6a\r
+ }\r
+ Target = (OpCode32 & 0xff) | ((OpCode32 >> 4) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, #0x%x", gReg[Rd], Target);\r
+ return;\r
+\r
+ case THUMB2_IMM16:\r
+ // MOVW <Rd>, #<const> i:imm3:imm8\r
+ Target = (OpCode32 & 0xff) | ((OpCode32 >> 4) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);\r
+ Target |= ((OpCode32 >> 4) & 0xf0000);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, #0x%x", gReg[Rd], Target);\r
+ return;\r
+\r
+ case ADD_IMM5:\r
+ // ADC{S} <Rd>, <Rn>, <Rm> {,LSL #<const>} imm3:imm2\r
+ if ((OpCode32 & BIT20) == BIT20) {\r
+ Buf[Offset - 3] = 'S'; // assume %-6a\r
+ }\r
+ Target = ((OpCode32 >> 6) & 3) | ((OpCode32 >> 10) & 0x1c0);\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, %a", gReg[Rd], gReg[Rn], gReg[Rm]);\r
+ if (Target != 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", LSL %d", gShiftType[(OpCode >> 5) & 3], Target);\r
+ }\r
+ return;\r
+\r
+ case ADD_IMM5_2REG:\r
+ // CMP <Rn>, <Rm> {,LSL #<const>} imm3:imm2\r
+ Target = ((OpCode32 >> 6) & 3) | ((OpCode32 >> 10) & 0x1c0);\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[Rn], gReg[Rm]);\r
+ if (Target != 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ", LSL %d", gShiftType[(OpCode >> 5) & 3], Target);\r
+ }\r
+\r
+\r
+ case ASR_IMM5:\r
+ // ARS <Rd>, <Rm> #<const>} imm3:imm2\r
+ if ((OpCode32 & BIT20) == BIT20) {\r
+ Buf[Offset - 3] = 'S'; // assume %-6a\r
+ }\r
+ Target = ((OpCode32 >> 6) & 3) | ((OpCode32 >> 10) & 0x1c0);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a #%d", gReg[Rd], gReg[Rm], Target);\r
+ return;\r
+\r
+ case ASR_3REG:\r
+ // ARS <Rd>, <Rn>, <Rm>\r
+ if ((OpCode32 & BIT20) == BIT20) {\r
+ Buf[Offset - 3] = 'S'; // assume %-6a\r
+ }\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a %a", gReg[Rd], gReg[Rn], gReg[Rm]);\r
+ return;\r
+\r
+ case ADR_THUMB2:\r
+ // ADDR <Rd>, <label>\r
+ Target = (OpCode32 & 0xff) | ((OpCode32 >> 8) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);\r
+ if ((OpCode & (BIT23 | BIT21)) == (BIT23 | BIT21)) {\r
+ Target = PCAlign4 (PC) - Target;\r
+ } else {\r
+ Target = PCAlign4 (PC) + Target;\r
+ }\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, 0x%08x", gReg[Rd], Target);\r
+ return;\r
+\r
+ case CMN_THUMB2:\r
+ // CMN <Rn>, #<const>}\r
+ Target = (OpCode32 & 0xff) | ((OpCode >> 4) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, #0x%x", gReg[Rn], Target);\r
+ return;\r
+\r
+ case BFC_THUMB2:\r
+ // BFI <Rd>, <Rn>, #<lsb>, #<width>\r
+ msbit = OpCode32 & 0x1f;\r
+ lsbit = ((OpCode32 >> 6) & 3) | ((OpCode >> 10) & 0x1c);\r
+ if ((Rn == 0xf) & (AsciiStrCmp (gOpThumb2[Index].Start, "BFC") == 0)){\r
+ // BFC <Rd>, #<lsb>, #<width>\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, #%d, #%d", gReg[Rd], lsbit, msbit - lsbit + 1);\r
+ } else if (AsciiStrCmp (gOpThumb2[Index].Start, "BFI") == 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, #%d, #%d", gReg[Rd], gReg[Rn], lsbit, msbit - lsbit + 1);\r
+ } else {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, #%d, #%d", gReg[Rd], gReg[Rn], lsbit, msbit + 1);\r
+ }\r
+ return;\r
+\r
+ case CPD_THUMB2:\r
+ // <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2>\r
+ coproc = (OpCode32 >> 8) & 0xf;\r
+ opc1 = (OpCode32 >> 20) & 0xf;\r
+ opc2 = (OpCode32 >> 5) & 0x7;\r
+ CRd = (OpCode32 >> 12) & 0xf;\r
+ CRn = (OpCode32 >> 16) & 0xf;\r
+ CRm = OpCode32 & 0xf;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " p%d,#%d,c%d,c%d,c%d", coproc, opc1, CRd, CRn, CRm);\r
+ if (opc2 != 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ",#%d,", opc2);\r
+ }\r
+ return;\r
+\r
+ case MRC_THUMB2:\r
+ // MRC <coproc>,<opc1>,<Rt>,<CRn>,<CRm>,<opc2>\r
+ coproc = (OpCode32 >> 8) & 0xf;\r
+ opc1 = (OpCode32 >> 20) & 0xf;\r
+ opc2 = (OpCode32 >> 5) & 0x7;\r
+ CRn = (OpCode32 >> 16) & 0xf;\r
+ CRm = OpCode32 & 0xf;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " p%d,#%d,%a,c%d,c%d", coproc, opc1, gReg[Rt], CRn, CRm);\r
+ if (opc2 != 0) {\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, ",#%d,", opc2);\r
+ }\r
+ return;\r
+\r
+ case MRRC_THUMB2:\r
+ // MRC <coproc>,<opc1>,<Rt>,<Rt2>,<CRm>,<opc2>\r
+ coproc = (OpCode32 >> 8) & 0xf;\r
+ opc1 = (OpCode32 >> 20) & 0xf;\r
+ CRn = (OpCode32 >> 16) & 0xf;\r
+ CRm = OpCode32 & 0xf;\r
+ Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " p%d,#%d,%a,%a,c%d", coproc, opc1, gReg[Rt], gReg[Rt2], CRm);\r
+ return;\r
+\r
+ case THUMB2_2REGS:\r
+ // <Rd>, <Rm>\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[Rd], gReg[Rm]);\r
+ return;\r
+\r
+ case THUMB2_4REGS:\r
+ // <Rd>, <Rn>, <Rm>, <Ra>\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, %a, %a", gReg[Rd], gReg[Rn], gReg[Rm], gReg[Rt]);\r
+ return;\r
+\r
+ case THUMB2_MRS:\r
+ // MRS <Rd>, CPSR\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " %a, CPSR", gReg[Rd]);\r
+ return;\r
+\r
+ case THUMB2_MSR:\r
+ // MRS CPSR_<fields>, <Rd>\r
+ Target = (OpCode32 >> 10) & 3;\r
+ AsciiSPrint (&Buf[Offset], Size - Offset, " CPSR_%a%a, %a", (Target & 2) == 0 ? "":"f", (Target & 1) == 0 ? "":"s", gReg[Rd]);\r
+ return;\r
+\r
+ case THUMB2_NO_ARGS:\r
+ default:\r
+ break;\r
}\r
}\r
}\r
\r
\r
/**\r
- Place a dissasembly of of **OpCodePtr into buffer, and update OpCodePtr to \r
- point to next instructin. \r
- \r
- We cheat and only decode instructions that access \r
+ Place a dissasembly of of **OpCodePtr into buffer, and update OpCodePtr to\r
+ point to next instructin.\r
+\r
+ We cheat and only decode instructions that access\r
memory. If the instruction is not found we dump the instruction in hex.\r
- \r
- @param OpCodePtrPtr Pointer to pointer of ARM Thumb instruction to disassemble. \r
+\r
+ @param OpCodePtrPtr Pointer to pointer of ARM Thumb instruction to disassemble.\r
@param Thumb TRUE for Thumb(2), FALSE for ARM instruction stream\r
@param Extended TRUE dump hex for instruction too.\r
+ @param ItBlock Size of IT Block\r
@param Buf Buffer to sprintf disassembly into.\r
- @param Size Size of Buf in bytes. \r
- \r
+ @param Size Size of Buf in bytes.\r
+\r
**/\r
VOID\r
DisassembleInstruction (\r
IN UINT8 **OpCodePtr,\r
IN BOOLEAN Thumb,\r
IN BOOLEAN Extended,\r
+ IN OUT UINT32 *ItBlock,\r
OUT CHAR8 *Buf,\r
OUT UINTN Size\r
)\r
{\r
if (Thumb) {\r
- DisassembleThumbInstruction ((UINT16 **)OpCodePtr, Buf, Size, Extended);\r
+ DisassembleThumbInstruction ((UINT16 **)OpCodePtr, Buf, Size, ItBlock, Extended);\r
} else {\r
DisassembleArmInstruction ((UINT32 **)OpCodePtr, Buf, Size, Extended);\r
}\r
}\r
- \r
+\r