diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/arm/v7/arm.c | 1333 | ||||
| -rw-r--r-- | src/arch/arm/v7/arm.h | 2 | ||||
| -rw-r--r-- | src/arch/arm/v7/opcodes/opcodes_tmp_arm.h | 142 | ||||
| -rw-r--r-- | src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h | 32 | ||||
| -rw-r--r-- | src/arch/arm/v7/thumb_16.c | 38 | ||||
| -rw-r--r-- | src/arch/arm/v7/thumb_16.h | 2 | ||||
| -rw-r--r-- | src/arch/arm/v7/thumb_32.c | 605 | ||||
| -rw-r--r-- | src/arch/arm/v7/thumb_32.h | 2 |
8 files changed, 2000 insertions, 156 deletions
diff --git a/src/arch/arm/v7/arm.c b/src/arch/arm/v7/arm.c index 176d171..b536770 100644 --- a/src/arch/arm/v7/arm.c +++ b/src/arch/arm/v7/arm.c @@ -24,6 +24,7 @@ #include "arm.h" +#include <assert.h> #include <stdint.h> @@ -33,76 +34,71 @@ - /* Désassemble une instruction ARMv7 de données ou autre. */ static GArchInstruction *process_armv7_arm_data_processing_and_miscellaneous_instructions(uint32_t); -/* Désassemble une instruction ARMv7 de données de registre. */ +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.1. */ static GArchInstruction *process_armv7_arm_data_processing_register(uint32_t); -/* Désassemble une instruction ARMv7 de données de immédiate. */ +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.2. */ +static GArchInstruction *process_armv7_arm_data_processing_register_shifted_register(uint32_t); + +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.3. */ static GArchInstruction *process_armv7_arm_data_processing_immediate(uint32_t); -/* Désassemble une instruction ARMv7 liées aux multiplications. */ +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.5. */ static GArchInstruction *process_armv7_arm_multiply_and_multiply_accumulate(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.6. */ +static GArchInstruction *process_armv7_arm_saturating_addition_and_subtraction(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.7. */ +static GArchInstruction *process_armv7_arm_halfword_multiply_and_multiply_accumulate(uint32_t); -/* Désassemble une instruction ARMv7 de données ou autre. */ -static GArchInstruction *process_armv7_arm_load_store_word_and_unsigned_byte(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.8. */ +static GArchInstruction *process_armv7_arm_extra_load_store_instructions(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.9. */ +static GArchInstruction *process_armv7_arm_extra_load_store_instructions_unprivileged(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.10. */ +static GArchInstruction *process_armv7_arm_synchronization_primitives(uint32_t); -/* Désassemble une instruction ARMv7 de données ou autre. */ -static GArchInstruction *process_armv7_arm_media_instructions(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.11. */ +static GArchInstruction *process_armv7_arm_msr_immediate_and_hints(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.2.12. */ +static GArchInstruction *process_armv7_arm_miscellaneous_instructions(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.3. */ +static GArchInstruction *process_armv7_arm_load_store_word_and_unsigned_byte(uint32_t); -#define process_armv7_arm_parallel_addition_and_subtraction_signed(raw) NULL -#define process_armv7_arm_parallel_addition_and_subtraction_unsigned(raw) NULL -#define process_armv7_arm_signed_multiply_signed_and_unsigned_divide(raw) NULL +/* Désassemble une instruction ARMv7 liées au chapitre A5.4. */ +static GArchInstruction *process_armv7_arm_media_instructions(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.4.1. */ +static GArchInstruction *process_armv7_arm_parallel_addition_and_subtraction_signed(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.4.2. */ +static GArchInstruction *process_armv7_arm_parallel_addition_and_subtraction_unsigned(uint32_t); -/* Désassemble une instruction ARMv7 de données ou autre. */ +/* Désassemble une instruction ARMv7 liées au chapitre A5.4.3. */ static GArchInstruction *process_armv7_arm_packing_unpacking_saturation_and_reversal(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.4.4. */ +static GArchInstruction *process_armv7_arm_signed_multiply_signed_and_unsigned_divide(uint32_t); - -/* Désassemble une instruction ARMv7 de données ou autre. */ +/* Désassemble une instruction ARMv7 liées au chapitre A5.5. */ static GArchInstruction *process_armv7_arm_branch_branch_with_link_and_block_data_transfer(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.6. */ +static GArchInstruction *process_armv7_arm_coprocessor_instructions_and_supervisor_call(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A5.7. */ +static GArchInstruction *process_armv7_arm_unconditional_instructions(uint32_t); -// process_armv7_arm_instruction_set_encoding - -//#define process_armv7_arm_load_store_word_and_unsigned_byte(raw) NULL -//#define process_armv7_arm_load_store_word_and_unsigned_byte(raw) NULL -//#define process_armv7_arm_media_instructions(raw) NULL -//#define process_armv7_arm_branch_branch_with_link_and_block_data_transfer(raw) NULL -#define process_armv7_arm_coprocessor_instructions_and_Supervisor_call(raw) NULL -#define process_armv7_arm_unconditional_instructions(raw) NULL - - -// process_armv7_arm_data_processing_and_miscellaneous_instructions - -#define process_armv7_arm_data_processing_register_shifted_register(raw) NULL -#define process_armv7_arm_extra_load_store_instructions(raw) NULL -#define process_armv7_arm_miscellaneous_instructions(raw) NULL -#define process_armv7_arm_halfword_multiply_and_multiply_accumulate(raw) NULL -//#define process_armv7_arm_multiply_and_multiply_accumulate(raw) NULL -#define process_armv7_arm_synchronization_primitives(raw) NULL -#define process_armv7_arm_extra_load_store_instructions_unprivileged(raw) NULL -#define process_armv7_arm_extra_load_store_instructions(raw) NULL -//#define process_armv7_arm_data_processing_immediate(raw) NULL - -#define process_armv7_arm_msr_immediate_and_hints(raw) NULL - - -// process_armv7_arm_data_processing_register - - - +/* Désassemble une instruction ARMv7 liées au chapitre A5.7.1. */ +static GArchInstruction *process_armv7_arm_memory_hints_advanced_simd_instructions_and_miscellaneous_instructions(uint32_t); @@ -110,7 +106,7 @@ static GArchInstruction *process_armv7_arm_branch_branch_with_link_and_block_dat * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.1. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -149,7 +145,7 @@ GArchInstruction *process_armv7_arm_instruction_set_encoding(uint32_t raw) if (op == b0) result = process_armv7_arm_load_store_word_and_unsigned_byte(raw); - else + else/* if (op == b1)*/ result = process_armv7_arm_media_instructions(raw); } @@ -158,7 +154,7 @@ GArchInstruction *process_armv7_arm_instruction_set_encoding(uint32_t raw) result = process_armv7_arm_branch_branch_with_link_and_block_data_transfer(raw); else if ((op1 & b110) == b110) - result = process_armv7_arm_coprocessor_instructions_and_Supervisor_call(raw); + result = process_armv7_arm_coprocessor_instructions_and_supervisor_call(raw); } @@ -297,7 +293,7 @@ static GArchInstruction *process_armv7_arm_data_processing_and_miscellaneous_ins * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 de données de registre. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.1. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -317,6 +313,8 @@ static GArchInstruction *process_armv7_arm_data_processing_register(uint32_t raw * § A5.2.1 Data-processing (register) */ + if ((raw & 0x0e000010) != 0x00000000) return NULL; + result = NULL; op = (raw >> 20) & 0x1f; @@ -408,17 +406,112 @@ static GArchInstruction *process_armv7_arm_data_processing_register(uint32_t raw } +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.2. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_data_processing_register_shifted_register(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.2 Data-processing (register-shifted register) + */ + + if ((raw & 0x0e000090) != 0x00000010) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x1f; + op2 = (raw >> 5) & 0x3; + + if ((op1 & b11110) == b00000) + result = armv7_read_arm_instr_and_register_shifted_register(raw); + + else if ((op1 & b11110) == b00010) + result = armv7_read_arm_instr_eor_register_shifted_register(raw); + else if ((op1 & b11110) == b00100) + result = armv7_read_arm_instr_sub_register_shifted_register(raw); + else if ((op1 & b11110) == b00110) + result = armv7_read_arm_instr_rsb_register_shifted_register(raw); + else if ((op1 & b11110) == b01000) + result = armv7_read_arm_instr_add_register_shifted_register(raw); + else if ((op1 & b11110) == b01010) + result = armv7_read_arm_instr_adc_register_shifted_register(raw); + + else if ((op1 & b11110) == b01100) + result = armv7_read_arm_instr_sbc_register_shifted_register(raw); + + else if ((op1 & b11110) == b01110) + result = armv7_read_arm_instr_rsc_register_shifted_register(raw); + +#if 0 + else if ((op1 & b11001) == b10000) + /* See Data-processing and miscellaneous instructions on page A5-196 */ +#endif + + else if (op1 == b10001) + result = armv7_read_arm_instr_tst_register_shifted_register(raw); + + else if (op1 == b10011) + result = armv7_read_arm_instr_teq_register_shifted_register(raw); + + else if (op1 == b10101) + result = armv7_read_arm_instr_cmp_register_shifted_register(raw); + + else if (op1 == b10111) + result = armv7_read_arm_instr_cmn_register_shifted_register(raw); + + else if ((op1 & b11110) == b11000) + result = armv7_read_arm_instr_orr_register_shifted_register(raw); + + else if ((op1 & b11110) == b11010) + { + if (op2 == b00) + result = armv7_read_arm_instr_lsl_register(raw); + + else if (op2 == b01) + result = armv7_read_arm_instr_lsr_register(raw); + + else if (op2 == b10) + result = armv7_read_arm_instr_asr_register(raw); + + else if (op2 == b11) + result = armv7_read_arm_instr_ror_register(raw); + + } + + else if ((op1 & b11110) == b11100) + result = armv7_read_arm_instr_bic_register_shifted_register(raw); + + else if ((op1 & b11110) == b11110) + result = armv7_read_arm_instr_mvn_register_shifted_register(raw); + + return result; + +} /****************************************************************************** * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 de données de immédiate. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.3. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -437,6 +530,8 @@ static GArchInstruction *process_armv7_arm_data_processing_immediate(uint32_t ra * § A5.2.3 Data-processing (immediate) */ + if ((raw & 0x0e000000) != 0x04000000) return NULL; + result = NULL; op = (raw >> 20) & 0x1f; @@ -514,21 +609,11 @@ static GArchInstruction *process_armv7_arm_data_processing_immediate(uint32_t ra } - - - - - - - - - - /****************************************************************************** * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 liées aux multiplications. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.5. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -546,10 +631,9 @@ static GArchInstruction *process_armv7_arm_multiply_and_multiply_accumulate(uint * § A5.2.5 Multiply and multiply accumulate */ - result = NULL; + if ((raw & 0x0f0000f0) != 0x00000090) return NULL; - if ((raw & 0x0f0000f0) != 0x00000090) - return NULL; + result = NULL; op = (raw >> 20) & 0xf; @@ -588,17 +672,533 @@ static GArchInstruction *process_armv7_arm_multiply_and_multiply_accumulate(uint } +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.6. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ +static GArchInstruction *process_armv7_arm_saturating_addition_and_subtraction(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op; /* Champ 'op' à retrouver */ + /** + * Suit les directives de : + * § A5.2.6 Saturating addition and subtraction + */ + if ((raw & 0x0f9000f0) != 0x01000050) return NULL; + result = NULL; + + op = (raw >> 21) & 0x3; + + if (op == b00) + result = armv7_read_arm_instr_qadd(raw); + + else if (op == b01) + result = armv7_read_arm_instr_qsub(raw); + + else if (op == b10) + result = armv7_read_arm_instr_qdadd(raw); + + else if (op == b11) + result = armv7_read_arm_instr_qdsub(raw); + + return result; + +} /****************************************************************************** * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 de données ou autre. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.7. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_halfword_multiply_and_multiply_accumulate(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t op; /* Champ 'op' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.7 Halfword multiply and multiply accumulate + */ + + if ((raw & 0x0f900090) != 0x01000080) return NULL; + + result = NULL; + + op1 = (raw >> 21) & 0x3; + op = (raw >> 5) & 0x1; + + if (op1 == b00) + result = armv7_read_arm_instr_smlabb_smlabt_smlatb_smlatt(raw); + + else if (op1 == b01) + { + if (op == b0) + result = armv7_read_arm_instr_smlawb_smlawt(raw); + + else/* if (op == b1)*/ + result = armv7_read_arm_instr_smulwb_smulwt(raw); + + } + + else if (op1 == b10) + result = armv7_read_arm_instr_smlalbb_smlalbt_smlaltb_smlaltt(raw); + + else if (op1 == b11) + result = armv7_read_arm_instr_smulbb_smulbt_smultb_smultt(raw); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.8. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_extra_load_store_instructions(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.8 Extra load/store instructions + */ + + if ((raw & 0x0e000090) != 0x00000090) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x1f; + rn = (raw >> 16) & 0xf; + op2 = (raw >> 5) & 0x3; + + if (op2 == b01) + { + if ((op1 & b00101) == b00000) + result = armv7_read_arm_instr_strh_register(raw); + + else if ((op1 & b00101) == b00001) + result = armv7_read_arm_instr_ldrh_register(raw); + + else if ((op1 & b00101) == b00100) + result = armv7_read_arm_instr_strh_immediate_arm(raw); + + else/* if ((op1 & b00101) == b00101)*/ + { + if (rn == b1111) + result = armv7_read_arm_instr_ldrh_literal(raw); + + else + result = armv7_read_arm_instr_ldrh_immediate_arm(raw); + + } + + } + + else if (op2 == b10) + { + if ((op1 & b00101) == b00000) + result = armv7_read_arm_instr_ldrd_register(raw); + + else if ((op1 & b00101) == b00001) + result = armv7_read_arm_instr_ldrsb_register(raw); + + else if ((op1 & b00101) == b00100) + { + if (rn == b1111) + result = armv7_read_arm_instr_ldrd_literal(raw); + + else + result = armv7_read_arm_instr_ldrd_immediate(raw); + + } + + else/* if ((op1 & b00101) == b00101)*/ + { + if (rn == b1111) + result = armv7_read_arm_instr_ldrsb_literal(raw); + + else + result = armv7_read_arm_instr_ldrsb_immediate(raw); + + } + + } + + else if (op2 == b11) + { + if ((op1 & b00101) == b00000) + result = armv7_read_arm_instr_strd_register(raw); + + else if ((op1 & b00101) == b00001) + result = armv7_read_arm_instr_ldrsh_register(raw); + + else if ((op1 & b00101) == b00100) + result = armv7_read_arm_instr_strd_immediate(raw); + + else/* if ((op1 & b00101) == b00101)*/ + { + if (rn == b1111) + result = armv7_read_arm_instr_ldrsh_literal(raw); + + else + result = armv7_read_arm_instr_ldrsh_immediate(raw); + + } + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.9. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_extra_load_store_instructions_unprivileged(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op; /* Champ 'op' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.9 Extra load/store instructions, unprivileged + */ + + if ((raw & 0x0f200090) != 0x00200090) return NULL; + + result = NULL; + + op = (raw >> 20) & 0x1; + op2 = (raw >> 5) & 0x3; + + if (op2 == b01) + { + if (op == b0) + result = armv7_read_arm_instr_strht(raw); + + else/* if (op == b1)*/ + result = armv7_read_arm_instr_ldrht(raw); + + } + + else if (op2 == b10) + { + if (op == b1) + result = armv7_read_arm_instr_ldrsbt(raw); + + } + + else if (op2 == b11) + { + if (op == b1) + result = armv7_read_arm_instr_ldrsht(raw); + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.10. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_synchronization_primitives(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op; /* Champ 'op' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.10 Synchronization primitives + */ + + if ((raw & 0x0f0000f0) != 0x01000090) return NULL; + + result = NULL; + + op = (raw >> 20) & 0xf; + + if ((op & b1011) == b0000) + result = armv7_read_arm_instr_swp_swpb(raw); + + else if (op == b1000) + result = armv7_read_arm_instr_strex(raw); + + else if (op == b1001) + result = armv7_read_arm_instr_ldrex(raw); + + else if (op == b1010) + result = armv7_read_arm_instr_strexd(raw); + + else if (op == b1011) + result = armv7_read_arm_instr_ldrexd(raw); + + else if (op == b1100) + result = armv7_read_arm_instr_strexb(raw); + + else if (op == b1101) + result = armv7_read_arm_instr_ldrexb(raw); + + else if (op == b1110) + result = armv7_read_arm_instr_strexh(raw); + + else if (op == b1111) + result = armv7_read_arm_instr_ldrexh(raw); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.11. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_msr_immediate_and_hints(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op; /* Champ 'op' à retrouver */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.11 MSR (immediate), and hints + */ + + if ((raw & 0x0fb00000) != 0x03200000) return NULL; + + result = NULL; + + op = (raw >> 22) & 0x1; + op1 = (raw >> 16) & 0xf; + op2 = (raw >> 0) & 0x1; + + if (op == b0) + { + if (op1 == b0000) + { + if (op2 == b00000000) + result = armv7_read_arm_instr_nop(raw); + + else if (op2 == b00000001) + result = armv7_read_arm_instr_yield(raw); + + else if (op2 == b00000010) + result = armv7_read_arm_instr_wfe(raw); + + else if (op2 == b00000011) + result = armv7_read_arm_instr_wfi(raw); + + else if (op2 == b00000100) + result = armv7_read_arm_instr_sev(raw); + + else if ((op2 & b11110000) == b11110000) + result = armv7_read_arm_instr_dbg(raw); + + } + + else if (op1 == b0100 || (op1 & b1011) == b1000) + result = armv7_read_arm_instr_msr_immediate_a8(raw); + + else if ((op1 & b0011) == b0001 || (op1 & b0010) == b0010) + result = armv7_read_arm_instr_msr_immediate_b9(raw); + + } + + else/* if (op == b1)*/ + result = armv7_read_arm_instr_msr_immediate_b9(raw); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.2.12. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_miscellaneous_instructions(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op; /* Champ 'op' à retrouver */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t b; /* Champ 'b' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.2.12 Miscellaneous instructions + */ + + if ((raw & 0x0f900080) != 0x00100000) return NULL; + + result = NULL; + + op = (raw >> 21) & 0x3; + op1 = (raw >> 16) & 0xf; + b = (raw >> 9) & 0x1; + op2 = (raw >> 4) & 0x7; + + if (op2 == b000) + { + if (b == b1) + { + if ((op & b01) == b00) + result = armv7_read_arm_instr_mrs_banked_register(raw); + + else/* if ((op & b01) == b01)*/ + result = armv7_read_arm_instr_msr_banked_register(raw); + + } + else/* if (b == b0)*/ + { + if ((op & b01) == b00) + result = armv7_read_arm_instr_mrs(raw); + + else if (op == b01) + { + if ((op1 & b0011) == b0000) + result = armv7_read_arm_instr_msr_register_a8(raw); + + else if ((op1 & b0011) == b0001 || (op1 & b0010) == b0010) + result = armv7_read_arm_instr_msr_register_b9(raw); + + } + + else if (op == b11) + result = armv7_read_arm_instr_msr_register_b9(raw); + + } + + } + + else if (op2 == b001) + { + if (op == b01) + result = armv7_read_arm_instr_bx(raw); + + else if (op == b11) + result = armv7_read_arm_instr_clz(raw); + + } + + else if (op2 == b010) + { + if (op == b01) + result = armv7_read_arm_instr_bxj(raw); + + } + + else if (op2 == b011) + { + if (op == b01) + result = armv7_read_arm_instr_blx_register(raw); + + } + + else if (op2 == b101) + result = process_armv7_arm_saturating_addition_and_subtraction(raw); + + else if (op2 == b110) + { + if (op == b11) + result = armv7_read_arm_instr_eret(raw); + + } + + else if (op2 == b111) + { + if (op == b) + result = armv7_read_arm_instr_bkpt(raw); + + else if (op == b) + result = armv7_read_arm_instr_hvc(raw); + + else if (op == b) + result = armv7_read_arm_instr_smc_previously_smi(raw); + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.3. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -619,6 +1219,8 @@ static GArchInstruction *process_armv7_arm_load_store_word_and_unsigned_byte(uin * § A5.3 Load/store word and unsigned byte */ + if ((raw & 0x0c000000) != 0x04000000) return NULL; + result = NULL; a = (raw >> 25) & 0x1; @@ -752,7 +1354,7 @@ static GArchInstruction *process_armv7_arm_load_store_word_and_unsigned_byte(uin * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 de données ou autre. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.4. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -774,10 +1376,9 @@ static GArchInstruction *process_armv7_arm_media_instructions(uint32_t raw) * § A5.4 Media instructions */ - result = NULL; + if ((raw & 0x0e000010) != 0x06000010) return NULL; - if ((raw & 0x0e000010) != 0x06000010) - return NULL; + result = NULL; cond = (raw >> 28) & 0xf; op1 = (raw >> 20) & 0x1f; @@ -857,7 +1458,209 @@ static GArchInstruction *process_armv7_arm_media_instructions(uint32_t raw) * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 de données ou autre. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.4.1. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_parallel_addition_and_subtraction_signed(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.4.1 Parallel addition and subtraction, signed + */ + + if ((raw & 0x0fc00010) != 0x06000010) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x3; + op2 = (raw >> 5) & 0x7; + + if (op1 == b01) + { + if (op2 == b000) + result = armv7_read_arm_instr_sadd16(raw); + + else if (op2 == b001) + result = armv7_read_arm_instr_sasx(raw); + + else if (op2 == b010) + result = armv7_read_arm_instr_ssax(raw); + + else if (op2 == b011) + result = armv7_read_arm_instr_ssub16(raw); + + else if (op2 == b100) + result = armv7_read_arm_instr_sadd8(raw); + + else if (op2 == b111) + result = armv7_read_arm_instr_ssub8(raw); + + } + + else if (op1 == b10) + { + if (op2 == b000) + result = armv7_read_arm_instr_qadd16(raw); + + else if (op2 == b001) + result = armv7_read_arm_instr_qasx(raw); + + else if (op2 == b010) + result = armv7_read_arm_instr_qsax(raw); + + else if (op2 == b011) + result = armv7_read_arm_instr_qsub16(raw); + + else if (op2 == b100) + result = armv7_read_arm_instr_qadd8(raw); + + else if (op2 == b111) + result = armv7_read_arm_instr_qsub8(raw); + + } + + else if (op1 == b11) + { + if (op2 == b000) + result = armv7_read_arm_instr_shadd16(raw); + + else if (op2 == b001) + result = armv7_read_arm_instr_shasx(raw); + + else if (op2 == b010) + result = armv7_read_arm_instr_shsax(raw); + + else if (op2 == b011) + result = armv7_read_arm_instr_shsub16(raw); + + else if (op2 == b100) + result = armv7_read_arm_instr_shadd8(raw); + + else if (op2 == b111) + result = armv7_read_arm_instr_shsub8(raw); + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.4.2. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_parallel_addition_and_subtraction_unsigned(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.4.2 Parallel addition and subtraction, unsigned + */ + + if ((raw & 0x0fc00010) != 0x06400010) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x3; + op2 = (raw >> 5) & 0x7; + + if (op1 == b01) + { + if (op2 == b000) + result = armv7_read_arm_instr_uadd16(raw); + + else if (op2 == b001) + result = armv7_read_arm_instr_uasx(raw); + + else if (op2 == b010) + result = armv7_read_arm_instr_usax(raw); + + else if (op2 == b011) + result = armv7_read_arm_instr_usub16(raw); + + else if (op2 == b100) + result = armv7_read_arm_instr_uadd8(raw); + + else if (op2 == b111) + result = armv7_read_arm_instr_usub8(raw); + + } + + else if (op1 == b10) + { + if (op2 == b000) + result = armv7_read_arm_instr_uqadd16(raw); + + else if (op2 == b001) + result = armv7_read_arm_instr_uqasx(raw); + + else if (op2 == b010) + result = armv7_read_arm_instr_uqsax(raw); + + else if (op2 == b011) + result = armv7_read_arm_instr_uqsub16(raw); + + else if (op2 == b100) + result = armv7_read_arm_instr_uqadd8(raw); + + else if (op2 == b111) + result = armv7_read_arm_instr_uqsub8(raw); + + } + + else if (op1 == b11) + { + if (op2 == b000) + result = armv7_read_arm_instr_uhadd16(raw); + + else if (op2 == b001) + result = armv7_read_arm_instr_uhasx(raw); + + else if (op2 == b010) + result = armv7_read_arm_instr_uhsax(raw); + + else if (op2 == b011) + result = armv7_read_arm_instr_uhsub16(raw); + + else if (op2 == b100) + result = armv7_read_arm_instr_uhadd8(raw); + + else if (op2 == b111) + result = armv7_read_arm_instr_uhsub8(raw); + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.4.3. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -877,10 +1680,9 @@ static GArchInstruction *process_armv7_arm_packing_unpacking_saturation_and_reve * § A5.4.3 Packing, unpacking, saturation, and reversal */ - result = NULL; + if ((raw & 0x0f800010) != 0x06800010) return NULL; - if ((raw & 0x0f800010) != 0x06800010) - return NULL; + result = NULL; op1 = (raw >> 20) & 0x7; a = (raw >> 16) & 0xf; @@ -1044,19 +1846,110 @@ static GArchInstruction *process_armv7_arm_packing_unpacking_saturation_and_reve } +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.4.4. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_signed_multiply_signed_and_unsigned_divide(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t a; /* Champ 'a' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.4.4 Signed multiply, signed and unsigned divide + */ + + if ((raw & 0x0f800010) != 0x07000010) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x7; + a = (raw >> 12) & 0xf; + op2 = (raw >> 5) & 0x7; + + if (op1 == b000) + { + if ((op2 & b110) == b000) + { + if (a != b1111) + result = armv7_read_arm_instr_smlad(raw); + else/* if (a == b1111)*/ + result = armv7_read_arm_instr_smuad(raw); + + } + + else if ((op2 & b110) == b010) + { + if (a != b1111) + result = armv7_read_arm_instr_smlsd(raw); + else/* if (a == b1111)*/ + result = armv7_read_arm_instr_smusd(raw); + + } + + } + else if (op1 == b001) + { + if (op2 == b000) + result = armv7_read_arm_instr_sdiv(raw); + + } + + else if (op1 == b011) + { + if (op2 == b000) + result = armv7_read_arm_instr_udiv(raw); + + } + + else if (op1 == b100) + { + if ((op2 & b110) == b000) + result = armv7_read_arm_instr_smlald(raw); + + else if ((op2 & b110) == b010) + result = armv7_read_arm_instr_smlsld(raw); + + } + + else if (op1 == b101) + { + if ((op2 & b110) == b000) + { + if (a != b1111) + result = armv7_read_arm_instr_smmla(raw); + else/* if (a == b1111)*/ + result = armv7_read_arm_instr_smmul(raw); + } + else if ((op2 & b110) == b110) + result = armv7_read_arm_instr_smmls(raw); + } + return result; +} /****************************************************************************** * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 de données ou autre. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.5. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1076,6 +1969,8 @@ static GArchInstruction *process_armv7_arm_branch_branch_with_link_and_block_dat * § A5.5 Branch, branch with link, and block data transferr */ + if ((raw & 0x0c000000) != 0x08000000) return NULL; + result = NULL; op = (raw >> 20) & 0x3f; @@ -1142,3 +2037,297 @@ static GArchInstruction *process_armv7_arm_branch_branch_with_link_and_block_dat return result; } + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.6. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_coprocessor_instructions_and_supervisor_call(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t coproc; /* Champ 'coproc' à retrouver */ + uint32_t op; /* Champ 'op' à retrouver */ + + /** + * Suit les directives de : + * § A5.6 Coprocessor instructions, and Supervisor Call + */ + + if ((raw & 0x0c000000) != 0x0c000000) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x3f; + rn = (raw >> 16) & 0xf; + coproc = (raw >> 8) & 0xf; + op = (raw >> 4) & 0x1; + + if ((op1 & b111110) == b000000) + /* UNDEFINED */ + assert(false); + + else if ((op1 & b110000) == b110000) + result = armv7_read_arm_instr_svc_previously_swi(raw); + + else if ((coproc & b1110) != b1010) + { + if ((op1 & b100001) == b000000 && (op1 & b111011) != b000000) + result = armv7_read_arm_instr_stc_stc2(raw); + + else if ((op1 & b100001) == b000001 && (op1 & b111011) != b000001) + { + if (rn != b1111) + result = armv7_read_arm_instr_ldc_ldc2_immediate(raw); + else + result = armv7_read_arm_instr_ldc_ldc2_literal(raw); + + } + + else if (op1 == b000100) + result = armv7_read_arm_instr_mcrr_mcrr2(raw); + + else if (op1 == b000101) + result = armv7_read_arm_instr_mrrc_mrrc2(raw); + + + else if ((op1 & b110000) == b100000 && op == b0) + result = armv7_read_arm_instr_cdp_cdp2(raw); + + else if ((op1 & b110001) == b100000 && op == b1) + result = armv7_read_arm_instr_mcr_mcr2(raw); + + else if ((op1 & b110001) == b100001 && op == b1) + result = armv7_read_arm_instr_mrc_mrc2(raw); + + } + + else if ((coproc & b1110) == b1010) + { + /* TODO */ + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.7. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_unconditional_instructions(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t op; /* Champ 'op' à retrouver */ + + /** + * Suit les directives de : + * § A5.7 Unconditional instructions + */ + + if ((raw & 0xf0000000) != 0xf0000000) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0xff; + rn = (raw >> 16) & 0xf; + op = (raw >> 4) & 0x1; + + if ((op1 & b10000000) == b00000000) + result = process_armv7_arm_memory_hints_advanced_simd_instructions_and_miscellaneous_instructions(raw); + + else if ((op1 & b11100101) == b10000100) + result = armv7_read_arm_instr_srs_arm(raw); + + else if ((op1 & b11100101) == b10000001) + result = armv7_read_arm_instr_rfe(raw); + + else if ((op1 & b11100000) == b10100000) + result = armv7_read_arm_instr_bl_blx_immediate(raw); + + else if ((op1 & b11100001) == b11000000 && (op1 & b11111011) != b11000000) + result = armv7_read_arm_instr_stc_stc2(raw); + + else if ((op1 & b11100001) == b11000001 && (op1 & b11111011) != b11000001) + { + if (rn != b1111) + result = armv7_read_arm_instr_ldc_ldc2_immediate(raw); + else/* if (rn == b1111)*/ + result = armv7_read_arm_instr_ldc_ldc2_literal(raw); + } + + else if (op1 == b11000100) + result = armv7_read_arm_instr_mcrr_mcrr2(raw); + + else if (op1 == b11000101) + result = armv7_read_arm_instr_mrrc_mrrc2(raw); + + else if ((op1 & b11110000) == b11100000 && op == b0) + result = armv7_read_arm_instr_cdp_cdp2(raw); + + else if ((op1 & b11110001) == b11100000 && op == b1) + result = armv7_read_arm_instr_mcr_mcr2(raw); + + else if ((op1 & b11110001) == b11100001 && op == b1) + result = armv7_read_arm_instr_mrc_mrc2(raw); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A5.7.1. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_arm_memory_hints_advanced_simd_instructions_and_miscellaneous_instructions(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à retourner */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A5.7.1 Memory hints, Advanced SIMD instructions, and miscellaneous instructions + */ + + if ((raw & 0xf8000000) != 0xf0000000) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x7f; + rn = (raw >> 16) & 0xf; + op2 = (raw >> 4) & 0xf; + + if (op1 == b0010000) + { + if ((op2 & b0010) == b0000 && (rn & b0001) == b0000) + result = armv7_read_arm_instr_cps_arm(raw); + + else if (op2 == b0000 && (rn & b0001) == b0001) + result = armv7_read_arm_instr_cps_arm(raw); + + } + + else if ((op1 & b1100000) == b0100000) + /* Advanced SIMD data-processing instructions */ + assert(false); + + else if ((op1 & b1110001) == b1000000) + /* Advanced SIMD element or structure load/store instructions */ + assert(false); + + else if ((op1 & b1110111) == b1000001) + /* (treat as NOP */ + assert(false); + + else if ((op1 & b1110111) == b1000101) + result = armv7_read_arm_instr_pli_immediate_literal(raw); + + else if ((op1 & b1110011) == b1000011) + /* UNPREDICTABLE */ + assert(false); + + else if ((op1 & b1110111) == b1010101) + { + if (rn != b1111) + result = armv7_read_arm_instr_pld_pldw_immediate(raw); + else + /* UNPREDICTABLE */ + assert(false); + + } + + else if ((op1 & b1110111) == b1010101) + { + if (rn != b1111) + result = armv7_read_arm_instr_pld_pldw_immediate(raw); + else + result = armv7_read_arm_instr_pld_literal(raw); + + } + + else if (op1 == b1010011) + /* UNPREDICTABLE */ + assert(false); + + else if (op1 == b1010111) + { + if (op2 == b0000) + /* UNPREDICTABLE */ + assert(false); + + else if (op2 == b0001) + result = armv7_read_arm_instr_clrex(raw); + + else if ((op2 & b1110) == b0010) + /* UNPREDICTABLE */ + assert(false); + + else if (op2 == b0100) + result = armv7_read_arm_instr_dsb(raw); + + else if (op2 == b0101) + result = armv7_read_arm_instr_dmd(raw); + + else if (op2 == b0110) + result = armv7_read_arm_instr_isb(raw); + + else if (op2 == b0111) + /* UNPREDICTABLE */ + assert(false); + + else if ((op2 & b1000) == b1000) + /* UNPREDICTABLE */ + assert(false); + + } + + else if ((op1 & b1111011) == b1011011) + /* UNPREDICTABLE */ + assert(false); + + else if ((op1 & b1110111) == b1100001 && (op2 & b0001) == b0000) + /* (treat as NOP */ + assert(false); + + else if ((op1 & b1110111) == b1100101 && (op2 & b0001) == b0000) + result = armv7_read_arm_instr_pli_register(raw); + + else if ((op1 & b1110111) == b1110001 && (op2 & b0001) == b0000) + result = armv7_read_arm_instr_pld_pldw_register(raw); + + return result; + +} diff --git a/src/arch/arm/v7/arm.h b/src/arch/arm/v7/arm.h index 2a751a5..5fcedc3 100644 --- a/src/arch/arm/v7/arm.h +++ b/src/arch/arm/v7/arm.h @@ -29,7 +29,7 @@ -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A5.1. */ GArchInstruction *process_armv7_arm_instruction_set_encoding(uint32_t raw); diff --git a/src/arch/arm/v7/opcodes/opcodes_tmp_arm.h b/src/arch/arm/v7/opcodes/opcodes_tmp_arm.h index 719d3c3..c4cf3b2 100644 --- a/src/arch/arm/v7/opcodes/opcodes_tmp_arm.h +++ b/src/arch/arm/v7/opcodes/opcodes_tmp_arm.h @@ -1,7 +1,29 @@ #ifndef arm_def_tmp_h #define arm_def_tmp_h +#define armv7_read_arm_instr_adc_register_shifted_register(r) NULL +#define armv7_read_arm_instr_add_register_shifted_register(r) NULL +#define armv7_read_arm_instr_and_register_shifted_register(r) NULL +#define armv7_read_arm_instr_asr_register(r) NULL #define armv7_read_arm_instr_bfc(r) NULL #define armv7_read_arm_instr_bfi(r) NULL +#define armv7_read_arm_instr_bic_register_shifted_register(r) NULL +#define armv7_read_arm_instr_bkpt(r) NULL +#define armv7_read_arm_instr_bxj(r) NULL +#define armv7_read_arm_instr_cdp_cdp2(r) NULL +#define armv7_read_arm_instr_clrex(r) NULL +#define armv7_read_arm_instr_clz(r) NULL +#define armv7_read_arm_instr_cmn_register_shifted_register(r) NULL +#define armv7_read_arm_instr_cmp_register_shifted_register(r) NULL +#define armv7_read_arm_instr_cps_arm(r) NULL +#define armv7_read_arm_instr_dbg(r) NULL +#define armv7_read_arm_instr_dmd(r) NULL +#define armv7_read_arm_instr_dsb(r) NULL +#define armv7_read_arm_instr_eor_register_shifted_register(r) NULL +#define armv7_read_arm_instr_eret(r) NULL +#define armv7_read_arm_instr_hvc(r) NULL +#define armv7_read_arm_instr_isb(r) NULL +#define armv7_read_arm_instr_ldc_ldc2_immediate(r) NULL +#define armv7_read_arm_instr_ldc_ldc2_literal(r) NULL #define armv7_read_arm_instr_ldmda_ldmfa(r) NULL #define armv7_read_arm_instr_ldmdb_ldmea(r) NULL #define armv7_read_arm_instr_ldm_exception_return(r) NULL @@ -10,41 +32,161 @@ #define armv7_read_arm_instr_ldm_user_registers(r) NULL #define armv7_read_arm_instr_ldrb_literal(r) NULL #define armv7_read_arm_instr_ldrbt(r) NULL +#define armv7_read_arm_instr_ldrd_immediate(r) NULL +#define armv7_read_arm_instr_ldrd_literal(r) NULL +#define armv7_read_arm_instr_ldrd_register(r) NULL +#define armv7_read_arm_instr_ldrex(r) NULL +#define armv7_read_arm_instr_ldrexb(r) NULL +#define armv7_read_arm_instr_ldrexd(r) NULL +#define armv7_read_arm_instr_ldrexh(r) NULL +#define armv7_read_arm_instr_ldrh_immediate_arm(r) NULL +#define armv7_read_arm_instr_ldrh_literal(r) NULL +#define armv7_read_arm_instr_ldrh_register(r) NULL +#define armv7_read_arm_instr_ldrht(r) NULL #define armv7_read_arm_instr_ldr_register(r) NULL +#define armv7_read_arm_instr_ldrsb_immediate(r) NULL +#define armv7_read_arm_instr_ldrsb_literal(r) NULL +#define armv7_read_arm_instr_ldrsb_register(r) NULL +#define armv7_read_arm_instr_ldrsbt(r) NULL +#define armv7_read_arm_instr_ldrsh_immediate(r) NULL +#define armv7_read_arm_instr_ldrsh_literal(r) NULL +#define armv7_read_arm_instr_ldrsh_register(r) NULL +#define armv7_read_arm_instr_ldrsht(r) NULL #define armv7_read_arm_instr_ldrt(r) NULL +#define armv7_read_arm_instr_lsl_register(r) NULL +#define armv7_read_arm_instr_lsr_register(r) NULL +#define armv7_read_arm_instr_mcr_mcr2(r) NULL +#define armv7_read_arm_instr_mcrr_mcrr2(r) NULL +#define armv7_read_arm_instr_mrc_mrc2(r) NULL +#define armv7_read_arm_instr_mrrc_mrrc2(r) NULL +#define armv7_read_arm_instr_mrs(r) NULL +#define armv7_read_arm_instr_mrs_banked_register(r) NULL +#define armv7_read_arm_instr_msr_banked_register(r) NULL +#define armv7_read_arm_instr_msr_immediate_a8(r) NULL +#define armv7_read_arm_instr_msr_immediate_b9(r) NULL +#define armv7_read_arm_instr_msr_register_a8(r) NULL +#define armv7_read_arm_instr_msr_register_b9(r) NULL +#define armv7_read_arm_instr_mvn_register_shifted_register(r) NULL +#define armv7_read_arm_instr_orr_register_shifted_register(r) NULL #define armv7_read_arm_instr_pkh(r) NULL +#define armv7_read_arm_instr_pld_literal(r) NULL +#define armv7_read_arm_instr_pld_pldw_immediate(r) NULL +#define armv7_read_arm_instr_pld_pldw_register(r) NULL +#define armv7_read_arm_instr_pli_immediate_literal(r) NULL +#define armv7_read_arm_instr_pli_register(r) NULL +#define armv7_read_arm_instr_qadd(r) NULL +#define armv7_read_arm_instr_qadd16(r) NULL +#define armv7_read_arm_instr_qadd8(r) NULL +#define armv7_read_arm_instr_qasx(r) NULL +#define armv7_read_arm_instr_qdadd(r) NULL +#define armv7_read_arm_instr_qdsub(r) NULL +#define armv7_read_arm_instr_qsax(r) NULL +#define armv7_read_arm_instr_qsub(r) NULL +#define armv7_read_arm_instr_qsub16(r) NULL +#define armv7_read_arm_instr_qsub8(r) NULL #define armv7_read_arm_instr_rbit(r) NULL #define armv7_read_arm_instr_rev(r) NULL #define armv7_read_arm_instr_rev16(r) NULL #define armv7_read_arm_instr_revsh(r) NULL +#define armv7_read_arm_instr_rfe(r) NULL #define armv7_read_arm_instr_ror_immediate(r) NULL +#define armv7_read_arm_instr_ror_register(r) NULL #define armv7_read_arm_instr_rrx(r) NULL +#define armv7_read_arm_instr_rsb_register_shifted_register(r) NULL +#define armv7_read_arm_instr_rsc_register_shifted_register(r) NULL +#define armv7_read_arm_instr_sadd16(r) NULL +#define armv7_read_arm_instr_sadd8(r) NULL +#define armv7_read_arm_instr_sasx(r) NULL +#define armv7_read_arm_instr_sbc_register_shifted_register(r) NULL #define armv7_read_arm_instr_sbfx(r) NULL +#define armv7_read_arm_instr_sdiv(r) NULL #define armv7_read_arm_instr_sel(r) NULL +#define armv7_read_arm_instr_sev(r) NULL +#define armv7_read_arm_instr_shadd16(r) NULL +#define armv7_read_arm_instr_shadd8(r) NULL +#define armv7_read_arm_instr_shasx(r) NULL +#define armv7_read_arm_instr_shsax(r) NULL +#define armv7_read_arm_instr_shsub16(r) NULL +#define armv7_read_arm_instr_shsub8(r) NULL +#define armv7_read_arm_instr_smc_previously_smi(r) NULL +#define armv7_read_arm_instr_smlabb_smlabt_smlatb_smlatt(r) NULL +#define armv7_read_arm_instr_smlad(r) NULL +#define armv7_read_arm_instr_smlalbb_smlalbt_smlaltb_smlaltt(r) NULL +#define armv7_read_arm_instr_smlald(r) NULL +#define armv7_read_arm_instr_smlawb_smlawt(r) NULL +#define armv7_read_arm_instr_smlsd(r) NULL +#define armv7_read_arm_instr_smlsld(r) NULL +#define armv7_read_arm_instr_smmla(r) NULL +#define armv7_read_arm_instr_smmls(r) NULL +#define armv7_read_arm_instr_smmul(r) NULL +#define armv7_read_arm_instr_smuad(r) NULL +#define armv7_read_arm_instr_smulbb_smulbt_smultb_smultt(r) NULL +#define armv7_read_arm_instr_smulwb_smulwt(r) NULL +#define armv7_read_arm_instr_smusd(r) NULL +#define armv7_read_arm_instr_srs_arm(r) NULL #define armv7_read_arm_instr_ssat(r) NULL #define armv7_read_arm_instr_ssat16(r) NULL +#define armv7_read_arm_instr_ssax(r) NULL +#define armv7_read_arm_instr_ssub16(r) NULL +#define armv7_read_arm_instr_ssub8(r) NULL +#define armv7_read_arm_instr_stc_stc2(r) NULL #define armv7_read_arm_instr_stmda_stmed(r) NULL #define armv7_read_arm_instr_stmdb_stmfd(r) NULL #define armv7_read_arm_instr_stmib_stmfa(r) NULL #define armv7_read_arm_instr_stm_stmia_stmea(r) NULL #define armv7_read_arm_instr_stm_user_registers(r) NULL #define armv7_read_arm_instr_strbt(r) NULL +#define armv7_read_arm_instr_strd_immediate(r) NULL +#define armv7_read_arm_instr_strd_register(r) NULL +#define armv7_read_arm_instr_strex(r) NULL +#define armv7_read_arm_instr_strexb(r) NULL +#define armv7_read_arm_instr_strexd(r) NULL +#define armv7_read_arm_instr_strexh(r) NULL +#define armv7_read_arm_instr_strh_immediate_arm(r) NULL +#define armv7_read_arm_instr_strh_register(r) NULL +#define armv7_read_arm_instr_strht(r) NULL #define armv7_read_arm_instr_str_register(r) NULL #define armv7_read_arm_instr_strt(r) NULL +#define armv7_read_arm_instr_sub_register_shifted_register(r) NULL +#define armv7_read_arm_instr_svc_previously_swi(r) NULL +#define armv7_read_arm_instr_swp_swpb(r) NULL #define armv7_read_arm_instr_sxtab(r) NULL #define armv7_read_arm_instr_sxtab16(r) NULL #define armv7_read_arm_instr_sxtah(r) NULL #define armv7_read_arm_instr_sxtb(r) NULL #define armv7_read_arm_instr_sxtb16(r) NULL #define armv7_read_arm_instr_sxth(r) NULL +#define armv7_read_arm_instr_teq_register_shifted_register(r) NULL +#define armv7_read_arm_instr_tst_register_shifted_register(r) NULL +#define armv7_read_arm_instr_uadd16(r) NULL +#define armv7_read_arm_instr_uadd8(r) NULL +#define armv7_read_arm_instr_uasx(r) NULL #define armv7_read_arm_instr_ubfx(r) NULL +#define armv7_read_arm_instr_udiv(r) NULL +#define armv7_read_arm_instr_uhadd16(r) NULL +#define armv7_read_arm_instr_uhadd8(r) NULL +#define armv7_read_arm_instr_uhasx(r) NULL +#define armv7_read_arm_instr_uhsax(r) NULL +#define armv7_read_arm_instr_uhsub16(r) NULL +#define armv7_read_arm_instr_uhsub8(r) NULL +#define armv7_read_arm_instr_uqadd16(r) NULL +#define armv7_read_arm_instr_uqadd8(r) NULL +#define armv7_read_arm_instr_uqasx(r) NULL +#define armv7_read_arm_instr_uqsax(r) NULL +#define armv7_read_arm_instr_uqsub16(r) NULL +#define armv7_read_arm_instr_uqsub8(r) NULL #define armv7_read_arm_instr_usad8(r) NULL #define armv7_read_arm_instr_usada8(r) NULL #define armv7_read_arm_instr_usat(r) NULL #define armv7_read_arm_instr_usat16(r) NULL +#define armv7_read_arm_instr_usax(r) NULL +#define armv7_read_arm_instr_usub16(r) NULL +#define armv7_read_arm_instr_usub8(r) NULL #define armv7_read_arm_instr_uxtab(r) NULL #define armv7_read_arm_instr_uxtab16(r) NULL #define armv7_read_arm_instr_uxtah(r) NULL #define armv7_read_arm_instr_uxtb16(r) NULL #define armv7_read_arm_instr_uxth(r) NULL +#define armv7_read_arm_instr_wfe(r) NULL +#define armv7_read_arm_instr_wfi(r) NULL #endif diff --git a/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h b/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h index 7510b20..1970369 100644 --- a/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h +++ b/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h @@ -6,6 +6,7 @@ #define armv7_read_thumb_32_instr_b_mrs(r) NULL #define armv7_read_thumb_32_instr_b_msr_register(r) NULL #define armv7_read_thumb_32_instr_bxj(r) NULL +#define armv7_read_thumb_32_instr_cdp_cdp2(r) NULL #define armv7_read_thumb_32_instr_clrex(r) NULL #define armv7_read_thumb_32_instr_clz(r) NULL #define armv7_read_thumb_32_instr_cps_thumb(r) NULL @@ -16,17 +17,37 @@ #define armv7_read_thumb_32_instr_eret(r) NULL #define armv7_read_thumb_32_instr_hvc(r) NULL #define armv7_read_thumb_32_instr_isb(r) NULL +#define armv7_read_thumb_32_instr_ldc_ldc2_immediate(r) NULL +#define armv7_read_thumb_32_instr_ldc_ldc2_literal(r) NULL #define armv7_read_thumb_32_instr_ldmdb_ldmea(r) NULL #define armv7_read_thumb_32_instr_ldm_ldmia_ldmfd_thumb(r) NULL #define armv7_read_thumb_32_instr_ldrb_literal(r) NULL #define armv7_read_thumb_32_instr_ldrbt(r) NULL +#define armv7_read_thumb_32_instr_ldrd_immediate(r) NULL +#define armv7_read_thumb_32_instr_ldrd_literal(r) NULL +#define armv7_read_thumb_32_instr_ldrex(r) NULL +#define armv7_read_thumb_32_instr_ldrexb(r) NULL +#define armv7_read_thumb_32_instr_ldrexd(r) NULL +#define armv7_read_thumb_32_instr_ldrexh(r) NULL +#define armv7_read_thumb_32_instr_ldrh_immediate_thumb(r) NULL +#define armv7_read_thumb_32_instr_ldrh_literal(r) NULL +#define armv7_read_thumb_32_instr_ldrh_register(r) NULL +#define armv7_read_thumb_32_instr_ldrht(r) NULL #define armv7_read_thumb_32_instr_ldrsb_immediate(r) NULL #define armv7_read_thumb_32_instr_ldrsb_literal(r) NULL #define armv7_read_thumb_32_instr_ldrsb_register(r) NULL #define armv7_read_thumb_32_instr_ldrsbt(r) NULL +#define armv7_read_thumb_32_instr_ldrsh_immediate(r) NULL +#define armv7_read_thumb_32_instr_ldrsh_literal(r) NULL +#define armv7_read_thumb_32_instr_ldrsh_register(r) NULL +#define armv7_read_thumb_32_instr_ldrsht(r) NULL #define armv7_read_thumb_32_instr_ldrt(r) NULL #define armv7_read_thumb_32_instr_lsl_register(r) NULL #define armv7_read_thumb_32_instr_lsr_register(r) NULL +#define armv7_read_thumb_32_instr_mcr_mcr2(r) NULL +#define armv7_read_thumb_32_instr_mcrr_mcrr2(r) NULL +#define armv7_read_thumb_32_instr_mrc_mrc2(r) NULL +#define armv7_read_thumb_32_instr_mrrc_mrrc2(r) NULL #define armv7_read_thumb_32_instr_mrs(r) NULL #define armv7_read_thumb_32_instr_mrs_banked_register(r) NULL #define armv7_read_thumb_32_instr_msr_banked_register(r) NULL @@ -36,6 +57,8 @@ #define armv7_read_thumb_32_instr_pkh(r) NULL #define armv7_read_thumb_32_instr_pld_immediate(r) NULL #define armv7_read_thumb_32_instr_pld_literal(r) NULL +#define armv7_read_thumb_32_instr_pld_pldw_immediate(r) NULL +#define armv7_read_thumb_32_instr_pld_pldw_register(r) NULL #define armv7_read_thumb_32_instr_pld_register(r) NULL #define armv7_read_thumb_32_instr_pli_immediate_literal(r) NULL #define armv7_read_thumb_32_instr_pli_register(r) NULL @@ -48,7 +71,9 @@ #define armv7_read_thumb_32_instr_rev16(r) NULL #define armv7_read_thumb_32_instr_revsh(r) NULL #define armv7_read_thumb_32_instr_rfe(r) NULL +#define armv7_read_thumb_32_instr_ror_immediate(r) NULL #define armv7_read_thumb_32_instr_ror_register(r) NULL +#define armv7_read_thumb_32_instr_rrx(r) NULL #define armv7_read_thumb_32_instr_sadd16(r) NULL #define armv7_read_thumb_32_instr_sadd8(r) NULL #define armv7_read_thumb_32_instr_sasx(r) NULL @@ -89,9 +114,15 @@ #define armv7_read_thumb_32_instr_ssax(r) NULL #define armv7_read_thumb_32_instr_ssub16(r) NULL #define armv7_read_thumb_32_instr_ssub8(r) NULL +#define armv7_read_thumb_32_instr_stc_stc2(r) NULL #define armv7_read_thumb_32_instr_stmdb_stmfd(r) NULL #define armv7_read_thumb_32_instr_stm_stmia_stmea(r) NULL #define armv7_read_thumb_32_instr_strbt(r) NULL +#define armv7_read_thumb_32_instr_strd_immediate(r) NULL +#define armv7_read_thumb_32_instr_strex(r) NULL +#define armv7_read_thumb_32_instr_strexb(r) NULL +#define armv7_read_thumb_32_instr_strexd(r) NULL +#define armv7_read_thumb_32_instr_strexh(r) NULL #define armv7_read_thumb_32_instr_strh_immediate_thumb(r) NULL #define armv7_read_thumb_32_instr_strh_register(r) NULL #define armv7_read_thumb_32_instr_strht(r) NULL @@ -105,6 +136,7 @@ #define armv7_read_thumb_32_instr_sxtb(r) NULL #define armv7_read_thumb_32_instr_sxtb16(r) NULL #define armv7_read_thumb_32_instr_sxth(r) NULL +#define armv7_read_thumb_32_instr_tbb_tbh(r) NULL #define armv7_read_thumb_32_instr_uadd16(r) NULL #define armv7_read_thumb_32_instr_uadd8(r) NULL #define armv7_read_thumb_32_instr_uasx(r) NULL diff --git a/src/arch/arm/v7/thumb_16.c b/src/arch/arm/v7/thumb_16.c index c722f30..4697b3e 100644 --- a/src/arch/arm/v7/thumb_16.c +++ b/src/arch/arm/v7/thumb_16.c @@ -33,25 +33,25 @@ -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.1 */ static GArchInstruction *process_armv7_thumb_16_shift_immediate_add_subtract_move_and_compare(uint16_t); -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.2. */ static GArchInstruction *process_armv7_thumb_16_data_processing(uint16_t); -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.3. */ static GArchInstruction *process_armv7_thumb_16_special_data_instructions_and_branch_and_exchange(uint16_t); -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.4. */ static GArchInstruction *process_armv7_thumb_16_load_store_single_data_item(uint16_t); -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.5. */ static GArchInstruction *process_armv7_thumb_16_miscellaneous_16_bit_instructions(uint16_t); -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.5.b. */ static GArchInstruction *process_armv7_thumb_16_miscellaneous_16_bit_instructions_if_then_and_hints(uint16_t); -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2.6. */ static GArchInstruction *process_armv7_thumb_16_conditional_branch_and_supervisor_call(uint16_t); @@ -60,7 +60,7 @@ static GArchInstruction *process_armv7_thumb_16_conditional_branch_and_superviso * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -133,7 +133,7 @@ GArchInstruction *process_armv7_thumb_16_instruction_set_encoding(uint16_t raw) * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.1. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -199,7 +199,7 @@ static GArchInstruction *process_armv7_thumb_16_shift_immediate_add_subtract_mov * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.2. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -300,7 +300,7 @@ static GArchInstruction *process_armv7_thumb_16_data_processing(uint16_t raw) * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.3. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -360,7 +360,7 @@ static GArchInstruction *process_armv7_thumb_16_special_data_instructions_and_br * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.4. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -471,7 +471,7 @@ static GArchInstruction *process_armv7_thumb_16_load_store_single_data_item(uint * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.5. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -561,7 +561,7 @@ static GArchInstruction *process_armv7_thumb_16_miscellaneous_16_bit_instruction * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.5.b.* * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -588,7 +588,10 @@ static GArchInstruction *process_armv7_thumb_16_miscellaneous_16_bit_instruction opa = (raw >> 4) & b1111; opb = (raw >> 0) & b1111; - if (opb == b0000) + if (opb != b0000) + result = armv7_read_thumb_16_instr_it(raw); + + else switch (opa) { case b0000: @@ -613,9 +616,6 @@ static GArchInstruction *process_armv7_thumb_16_miscellaneous_16_bit_instruction } - else - result = armv7_read_thumb_16_instr_it(raw); - return result; } @@ -625,7 +625,7 @@ static GArchInstruction *process_armv7_thumb_16_miscellaneous_16_bit_instruction * * * Paramètres : raw = donnée brute de 16 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 16 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.2.6. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * diff --git a/src/arch/arm/v7/thumb_16.h b/src/arch/arm/v7/thumb_16.h index bc50fd8..134a3aa 100644 --- a/src/arch/arm/v7/thumb_16.h +++ b/src/arch/arm/v7/thumb_16.h @@ -29,7 +29,7 @@ -/* Désassemble une instruction ARMv7 en mode Thumb 16 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.2. */ GArchInstruction *process_armv7_thumb_16_instruction_set_encoding(uint16_t); diff --git a/src/arch/arm/v7/thumb_32.c b/src/arch/arm/v7/thumb_32.c index 9d9de57..c1e3f3c 100644 --- a/src/arch/arm/v7/thumb_32.c +++ b/src/arch/arm/v7/thumb_32.c @@ -24,6 +24,7 @@ #include "thumb_32.h" +#include <assert.h> #include <stdint.h> @@ -33,78 +34,65 @@ - - - -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.1. */ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immediate(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.3. */ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_immediate(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.4. */ static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_control(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ -static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_control_change_processor_state_and_hints(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.4b. */ +static GArchInstruction *process_armv7_thumb_32_change_processor_state_and_hints(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ -static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_control_miscellaneous_control_instructions(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.4t. */ +static GArchInstruction *process_armv7_thumb_32_miscellaneous_control_instructions(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.5. */ static GArchInstruction *process_armv7_thumb_32_load_store_multiple(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.6. */ +static GArchInstruction *process_armv7_thumb_32_load_store_dual_load_store_exclusive_table_branch(uint32_t); - -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.7. */ static GArchInstruction *process_armv7_thumb_32_load_word(uint32_t); +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.8. */ +static GArchInstruction *process_armv7_thumb_32_load_halfword_memory_hints(uint32_t); - - -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.9. */ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.10. */ static GArchInstruction *process_armv7_thumb_32_store_single_data_item(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.11. */ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.11b. */ +static GArchInstruction *process_armv7_thumb_32_move_register_and_immediate_shifts(uint32_t); + +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.12. */ static GArchInstruction *process_armv7_thumb_32_data_processing_register(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.13. */ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtraction_signed(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.14. */ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtraction_unsigned(uint32_t); - -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.15. */ static GArchInstruction *process_armv7_thumb_32_miscellaneous_operations(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.16. */ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and_absolute_difference(uint32_t); -/* Désassemble une instruction ARMv7 classique. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.17. */ static GArchInstruction *process_armv7_thumb_32_long_multiply_long_multiply_accumulate_and_divide(uint32_t); - - - - - -#define process_armv7_thumb_32_load_store_dual_load_store_exclusive_table_branch(r) NULL -#define process_armv7_thumb_32_coprocessor_advanced_simd_and_floating_point_instructions(r) NULL - -#define process_armv7_thumb_32_load_halfword_memory_hints(r) NULL -#define process_armv7_thumb_32_advanced_simd_element_or_structure_load_store_instructions(r) NULL -#define process_armv7_thumb_32_move_register_and_immediate_shifts(r) NULL - - - - +/* Désassemble une instruction ARMv7 liées au chapitre A6.3.18. */ +static GArchInstruction *process_armv7_thumb_32_coprocessor_advanced_simd_and_floating_point_instructions(uint32_t); @@ -112,7 +100,7 @@ static GArchInstruction *process_armv7_thumb_32_long_multiply_long_multiply_accu * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 en mode Thumb 32 bits. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -195,7 +183,9 @@ GArchInstruction *process_armv7_thumb_32_instruction_set_encoding(uint32_t raw) */ else if ((op2 & b1110001) == b0010000) - result = process_armv7_thumb_32_advanced_simd_element_or_structure_load_store_instructions(raw); + /* Advanced SIMD element or structure load/store instructions on page A7-275 */ + /*result = process_armv7_thumb_32_advanced_simd_element_or_structure_load_store_instructions(raw);*/ + assert(false); else if ((op2 & b1110000) == b0100000) result = process_armv7_thumb_32_data_processing_register(raw); @@ -222,7 +212,7 @@ GArchInstruction *process_armv7_thumb_32_instruction_set_encoding(uint32_t raw) * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.1. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -256,6 +246,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia if (rds == b11111) result = armv7_read_thumb_32_instr_tst_immediate(raw); + else result = armv7_read_thumb_32_instr_and_immediate(raw); @@ -269,6 +260,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia if (rn == b1111) result = armv7_read_thumb_32_instr_mov_immediate(raw); + else result = armv7_read_thumb_32_instr_orr_immediate(raw); @@ -278,6 +270,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia if (rn == b1111) result = armv7_read_thumb_32_instr_mvn_immediate(raw); + else result = armv7_read_thumb_32_instr_orn_immediate(raw); @@ -287,6 +280,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia if (rds == b11111) result = armv7_read_thumb_32_instr_teq_immediate(raw); + else result = armv7_read_thumb_32_instr_eor_immediate(raw); @@ -296,6 +290,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia if (rds == b11111) result = armv7_read_thumb_32_instr_cmn_immediate(raw); + else result = armv7_read_thumb_32_instr_add_immediate_thumb(raw); @@ -313,6 +308,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia if (rds == b11111) result = armv7_read_thumb_32_instr_cmp_immediate(raw); + else result = armv7_read_thumb_32_instr_sub_immediate_thumb(raw); @@ -333,7 +329,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_modified_immedia * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.3. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -365,6 +361,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_imm if (rn == b1111) result = armv7_read_thumb_32_instr_adr(raw); + else result = armv7_read_thumb_32_instr_add_immediate_thumb(raw); @@ -378,6 +375,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_imm if (rn == b11111) result = armv7_read_thumb_32_instr_adr(raw); + else result = armv7_read_thumb_32_instr_sub_immediate_thumb(raw); @@ -392,10 +390,13 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_imm break; case b10010: + if ((raw & 0x000070c0) != 0) result = armv7_read_thumb_32_instr_ssat(raw); + else result = armv7_read_thumb_32_instr_ssat16(raw); + break; case b10100: @@ -406,6 +407,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_imm if (rn == b11111) result = armv7_read_thumb_32_instr_bfc(raw); + else result = armv7_read_thumb_32_instr_bfi(raw); @@ -416,10 +418,13 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_imm break; case b11010: + if ((raw & 0x000070c0) != 0) result = armv7_read_thumb_32_instr_usat(raw); + else result = armv7_read_thumb_32_instr_usat16(raw); + break; case b11100: @@ -437,7 +442,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_plain_binary_imm * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.4. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -494,10 +499,10 @@ static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_contr result = armv7_read_thumb_32_instr_b_msr_register(raw); else if (op == b0111010) - result = process_armv7_thumb_32_branches_and_miscellaneous_control_change_processor_state_and_hints(raw); + result = process_armv7_thumb_32_change_processor_state_and_hints(raw); else if (op == b0111011) - result = process_armv7_thumb_32_branches_and_miscellaneous_control_miscellaneous_control_instructions(raw); + result = process_armv7_thumb_32_miscellaneous_control_instructions(raw); else if (op == b0111100) result = armv7_read_thumb_32_instr_bxj(raw); @@ -542,13 +547,13 @@ static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_contr * * * Description : Désassemble une instruction ARMv7 classique. * * * -* Retour : Instruction mise en place ou NULL en cas d'échec. * +* Retour : Désassemble une instruction ARMv7 liées au chapitre A6.3.4b. * * * * Remarques : - * * * ******************************************************************************/ -static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_control_change_processor_state_and_hints(uint32_t raw) +static GArchInstruction *process_armv7_thumb_32_change_processor_state_and_hints(uint32_t raw) { GArchInstruction *result; /* Instruction à renvoyer */ uint32_t op1; /* Champ 'op1' à retrouver */ @@ -601,7 +606,7 @@ static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_contr * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.4t. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -609,7 +614,7 @@ static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_contr * * ******************************************************************************/ -static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_control_miscellaneous_control_instructions(uint32_t raw) +static GArchInstruction *process_armv7_thumb_32_miscellaneous_control_instructions(uint32_t raw) { GArchInstruction *result; /* Instruction à renvoyer */ uint32_t op; /* Champ 'op' à retrouver */ @@ -663,7 +668,7 @@ static GArchInstruction *process_armv7_thumb_32_branches_and_miscellaneous_contr * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.5. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -697,6 +702,7 @@ static GArchInstruction *process_armv7_thumb_32_load_store_multiple(uint32_t raw if (l == b0) result = armv7_read_thumb_32_instr_srs_thumb(raw); + else result = armv7_read_thumb_32_instr_rfe(raw); @@ -711,8 +717,10 @@ static GArchInstruction *process_armv7_thumb_32_load_store_multiple(uint32_t raw { if (wrn == b11101) result = armv7_read_thumb_32_instr_pop_thumb(raw); + else result = armv7_read_thumb_32_instr_ldm_ldmia_ldmfd_thumb(raw); + } break; @@ -723,8 +731,10 @@ static GArchInstruction *process_armv7_thumb_32_load_store_multiple(uint32_t raw { if (wrn == b11101) result = armv7_read_thumb_32_instr_push(raw); + else result = armv7_read_thumb_32_instr_stmdb_stmfd(raw); + } else @@ -736,6 +746,7 @@ static GArchInstruction *process_armv7_thumb_32_load_store_multiple(uint32_t raw if (l == b0) result = armv7_read_thumb_32_instr_srs_thumb(raw); + else result = armv7_read_thumb_32_instr_rfe(raw); @@ -748,21 +759,124 @@ static GArchInstruction *process_armv7_thumb_32_load_store_multiple(uint32_t raw } +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.6. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_thumb_32_load_store_dual_load_store_exclusive_table_branch(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à renvoyer */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t op3; /* Champ 'op3' à retrouver */ + + /** + * Suit les directives de : + * § A6.3.6 Load/store dual, load/store exclusive, table branch + */ + + if ((raw & 0xfe400000) != 0xe8400000) return NULL; + + result = NULL; + + op1 = (raw >> 23) & 0x3; + op2 = (raw >> 20) & 0x3; + rn = (raw >> 16) & 0xf; + op3 = (raw >> 4) & 0xf; + + if (op1 == b00 && op2 == b00) + result = armv7_read_thumb_32_instr_strex(raw); + + else if (op1 == b00 && op2 == b01) + result = armv7_read_thumb_32_instr_ldrex(raw); + + else if ((op1 & b10) == b00 && op2 == b10) + result = armv7_read_thumb_32_instr_strd_immediate(raw); + + else if ((op1 & b10) == b10 && (op2 & b01) == b00) + result = armv7_read_thumb_32_instr_strd_immediate(raw); + + else if ((op1 & b10) == b00 && op2 == b11) + { + if (rn != b1111) + result = armv7_read_thumb_32_instr_ldrd_immediate(raw); + + else/* if (rn == b1111)*/ + result = armv7_read_thumb_32_instr_ldrd_literal(raw); + + } + + else if ((op1 & b10) == b10 && (op2 & b01) == b01) + { + if (rn != b1111) + result = armv7_read_thumb_32_instr_ldrd_immediate(raw); + + else/* if (rn == b1111)*/ + result = armv7_read_thumb_32_instr_ldrd_literal(raw); + + } + + else if (op1 == b01 && op2 == b00) + switch (op3) + { + case b0100: + result = armv7_read_thumb_32_instr_strexb(raw); + break; + + case b0101: + result = armv7_read_thumb_32_instr_strexh(raw); + break; + case b0111: + result = armv7_read_thumb_32_instr_strexd(raw); + break; + } + else if (op1 == b01 && op2 == b01) + switch (op3) + { + case b0000: + result = armv7_read_thumb_32_instr_tbb_tbh(raw); + break; + case b0001: + result = armv7_read_thumb_32_instr_tbb_tbh(raw); + break; + case b0100: + result = armv7_read_thumb_32_instr_ldrexb(raw); + break; + case b0101: + result = armv7_read_thumb_32_instr_ldrexh(raw); + break; + case b0111: + result = armv7_read_thumb_32_instr_ldrexd(raw); + break; + } + + return result; + +} /****************************************************************************** * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.7. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -823,22 +937,146 @@ static GArchInstruction *process_armv7_thumb_32_load_word(uint32_t raw) } +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.8. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_thumb_32_load_halfword_memory_hints(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à renvoyer */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t rt; /* Champ 'rt' à retrouver */ + uint32_t op2; /* Champ 'op2' à retrouver */ + + /** + * Suit les directives de : + * § A6.3.8 Load halfword, memory hints + */ + + if ((raw & 0xfe700000) != 0xf8300000) return NULL; + + result = NULL; + + op1 = (raw >> 23) & 0x3; + rn = (raw >> 16) & 0xf; + rt = (raw >> 12) & 0xf; + op2 = (raw >> 6) & 0x3f; + + if (rn == b1111) + { + if ((op1 & b10) == b00) + { + if (rt != b1111) + result = armv7_read_thumb_32_instr_ldrh_literal(raw); + + else/* if (rt == b1111)*/ + result = armv7_read_thumb_32_instr_pld_literal(raw); + + } + + else/* if ((op1 & b10) == b10)*/ + { + if (rt != b1111) + result = armv7_read_thumb_32_instr_ldrsh_literal(raw); + + else/* if (rt == b1111)*/ + /* Unallocated memory hint (treat as NOP) */ + assert(false); + + } + + } + + else/* if (rn != b1111)*/ + { + if (op1 == b00) + { + if ((op2 & b100100) == b100100) + result = armv7_read_thumb_32_instr_ldrh_immediate_thumb(raw); + else if ((op2 & b111100) == b110000 && rt != b1111) + result = armv7_read_thumb_32_instr_ldrh_immediate_thumb(raw); + + else if (op2 == b000000 && rt != b1111) + result = armv7_read_thumb_32_instr_ldrh_register(raw); + + else if ((op2 & b111100) == b111000) + result = armv7_read_thumb_32_instr_ldrht(raw); + else if (op2 == b000000 && rt == b1111) + result = armv7_read_thumb_32_instr_pld_pldw_register(raw); + else if ((op2 & b111100) == b110000 && rt == b1111) + result = armv7_read_thumb_32_instr_pld_pldw_immediate(raw); + } + else if (op1 == b01) + { + if (rt != b1111) + result = armv7_read_thumb_32_instr_ldrh_immediate_thumb(raw); + else/* if (rt == b1111)*/ + result = armv7_read_thumb_32_instr_pld_pldw_immediate(raw); + } + + else if (op1 == b10) + { + if ((op2 & b100100) == b100100) + result = armv7_read_thumb_32_instr_ldrsh_immediate(raw); + + else if ((op2 & b111100) == b110000 && rt != b1111) + result = armv7_read_thumb_32_instr_ldrsh_immediate(raw); + + else if (op2 == b000000 && rt != b1111) + result = armv7_read_thumb_32_instr_ldrsh_register(raw); + + else if ((op2 & b111100) == b111000) + result = armv7_read_thumb_32_instr_ldrsht(raw); + else if (op2 == b000000 && rt == b1111) + /* Unallocated memory hint (treat as NOP) */ + assert(false); + else if ((op2 & b111100) == b110000 && rt == b1111) + /* Unallocated memory hint (treat as NOP) */ + assert(false); + + } + + else if (op1 == b11) + { + if (rt != b1111) + result = armv7_read_thumb_32_instr_ldrsh_immediate(raw); + + else/* if (rt == b1111)*/ + /* Unallocated memory hint (treat as NOP) */ + assert(false); + + } + + } + + return result; + +} /****************************************************************************** * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.9. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -872,16 +1110,20 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrb_register(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pld_register(raw); + } else if ((op1 & b10) == b00 && rn == b1111) { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrb_literal(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pld_literal(raw); + } else if (op1 == b00 && (op2 & b100100) == b100100 && rn != b1111) @@ -891,8 +1133,10 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrb_immediate_thumb(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pld_immediate(raw); + } else if (op1 == b00 && (op2 & b111100) == b111000 && rn != b1111) @@ -902,8 +1146,10 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrb_immediate_thumb(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pld_immediate(raw); + } if (op1 == b10 && op2 == b000000 && rn != b1111) @@ -918,8 +1164,10 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrsb_literal(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pli_immediate_literal(raw); + } else if (op1 == b10 && (op2 & b100100) == b100100 && rn != b1111) @@ -929,8 +1177,10 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrsb_immediate(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pli_immediate_literal(raw); + } else if (op1 == b10 && (op2 & b111100) == b111000 && rn != b1111) @@ -940,8 +1190,10 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t { if (rt != b1111) result = armv7_read_thumb_32_instr_ldrsb_immediate(raw); + else /*if (rt == b1111) */ result = armv7_read_thumb_32_instr_pli_immediate_literal(raw); + } return result; @@ -953,7 +1205,7 @@ static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.10. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1052,7 +1304,7 @@ static GArchInstruction *process_armv7_thumb_32_store_single_data_item(uint32_t * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.11. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1086,6 +1338,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register if (rds == b11111) result = armv7_read_thumb_32_instr_tst_register(raw); + else result = armv7_read_thumb_32_instr_and_register(raw); @@ -1099,6 +1352,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register if (rn == b11111) result = process_armv7_thumb_32_move_register_and_immediate_shifts(raw); + else result = armv7_read_thumb_32_instr_orr_register(raw); @@ -1108,6 +1362,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register if (rn == b11111) result = armv7_read_thumb_32_instr_mvn_register(raw); + else result = armv7_read_thumb_32_instr_orn_register(raw); @@ -1117,6 +1372,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register if (rds == b11111) result = armv7_read_thumb_32_instr_teq_register(raw); + else result = armv7_read_thumb_32_instr_eor_register(raw); @@ -1130,6 +1386,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register if (rds == b11111) result = armv7_read_thumb_32_instr_cmn_register(raw); + else result = armv7_read_thumb_32_instr_add_register_thumb(raw); @@ -1147,6 +1404,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register if (rds == b11111) result = armv7_read_thumb_32_instr_cmp_register(raw); + else result = armv7_read_thumb_32_instr_sub_register_thumb(raw); @@ -1167,7 +1425,75 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_shifted_register * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.11b.* +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_thumb_32_move_register_and_immediate_shifts(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à renvoyer */ + uint32_t imm5; /* Champs 'imm[32]' à retrouver*/ + uint32_t type; /* Champ 'type' à retrouver */ + + /** + * Suit les directives de : + * § A6.3.11 Data-processing (shifted register) + * |-> Move register and immediate shifts + */ + + if ((raw & 0xffef0000) != 0xea4f0000) return NULL; + + result = NULL; + + imm5 = (((raw >> 12) & 0x7) << 2) | ((raw >> 6) & 0x3); + type = (raw >> 4) & 0x3; + + switch (type) + { + case b00: + + if (imm5 == b00000) + result = armv7_read_thumb_32_instr_mov_register_thumb(raw); + + else/* if (imm5 != b00000)*/ + result = armv7_read_thumb_32_instr_lsl_immediate(raw); + + break; + + case b01: + result = armv7_read_thumb_32_instr_lsr_immediate(raw); + break; + + case b10: + result = armv7_read_thumb_32_instr_asr_immediate(raw); + break; + + case b11: + + if (imm5 == b00000) + result = armv7_read_thumb_32_instr_rrx(raw); + + else/* if (imm5 != b00000)*/ + result = armv7_read_thumb_32_instr_ror_immediate(raw); + + break; + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.12. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1211,48 +1537,60 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_register(uint32_ { if (rn == b1111) result = armv7_read_thumb_32_instr_sxth(raw); + else result = armv7_read_thumb_32_instr_sxtah(raw); + } else if (op1 == b0001 && (op2 & b1000) == b1000) { if (rn == b1111) result = armv7_read_thumb_32_instr_uxth(raw); + else result = armv7_read_thumb_32_instr_uxtah(raw); + } else if (op1 == b0010 && (op2 & b1000) == b1000) { if (rn == b1111) result = armv7_read_thumb_32_instr_sxtb16(raw); + else result = armv7_read_thumb_32_instr_sxtab16(raw); + } else if (op1 == b0011 && (op2 & b1000) == b1000) { if (rn == b1111) result = armv7_read_thumb_32_instr_uxtb16(raw); + else result = armv7_read_thumb_32_instr_uxtab16(raw); + } else if (op1 == b0100 && (op2 & b1000) == b1000) { if (rn == b1111) result = armv7_read_thumb_32_instr_sxtb(raw); + else result = armv7_read_thumb_32_instr_sxtab(raw); + } else if (op1 == b0101 && (op2 & b1000) == b1000) { if (rn == b1111) result = armv7_read_thumb_32_instr_uxtb(raw); + else result = armv7_read_thumb_32_instr_uxtab(raw); + } else if ((op1 & b1000) == b1000 && (op2 & b1100) == b0000) @@ -1273,7 +1611,7 @@ static GArchInstruction *process_armv7_thumb_32_data_processing_register(uint32_ * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.13. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1307,21 +1645,27 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio case b001: result = armv7_read_thumb_32_instr_sadd16(raw); break; + case b010: result = armv7_read_thumb_32_instr_sasx(raw); break; + case b110: result = armv7_read_thumb_32_instr_ssax(raw); break; + case b101: result = armv7_read_thumb_32_instr_ssub16(raw); break; + case b000: result = armv7_read_thumb_32_instr_sadd8(raw); break; + case b100: result = armv7_read_thumb_32_instr_ssub8(raw); break; + } break; @@ -1331,21 +1675,27 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio case b001: result = armv7_read_thumb_32_instr_sqadd16(raw); break; + case b010: result = armv7_read_thumb_32_instr_sqasx(raw); break; + case b110: result = armv7_read_thumb_32_instr_sqsax(raw); break; + case b101: result = armv7_read_thumb_32_instr_sqsub16(raw); break; + case b000: result = armv7_read_thumb_32_instr_sqadd8(raw); break; + case b100: result = armv7_read_thumb_32_instr_sqsub8(raw); break; + } break; @@ -1355,21 +1705,27 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio case b001: result = armv7_read_thumb_32_instr_shadd16(raw); break; + case b010: result = armv7_read_thumb_32_instr_shasx(raw); break; + case b110: result = armv7_read_thumb_32_instr_shsax(raw); break; + case b101: result = armv7_read_thumb_32_instr_shsub16(raw); break; + case b000: result = armv7_read_thumb_32_instr_shadd8(raw); break; + case b100: result = armv7_read_thumb_32_instr_shsub8(raw); break; + } break; @@ -1384,7 +1740,7 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.14. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1418,21 +1774,27 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio case b001: result = armv7_read_thumb_32_instr_uadd16(raw); break; + case b010: result = armv7_read_thumb_32_instr_uasx(raw); break; + case b110: result = armv7_read_thumb_32_instr_usax(raw); break; + case b101: result = armv7_read_thumb_32_instr_usub16(raw); break; + case b000: result = armv7_read_thumb_32_instr_uadd8(raw); break; + case b100: result = armv7_read_thumb_32_instr_usub8(raw); break; + } break; @@ -1442,21 +1804,27 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio case b001: result = armv7_read_thumb_32_instr_uqadd16(raw); break; + case b010: result = armv7_read_thumb_32_instr_uqasx(raw); break; + case b110: result = armv7_read_thumb_32_instr_uqsax(raw); break; + case b101: result = armv7_read_thumb_32_instr_uqsub16(raw); break; + case b000: result = armv7_read_thumb_32_instr_uqadd8(raw); break; + case b100: result = armv7_read_thumb_32_instr_uqsub8(raw); break; + } break; @@ -1466,21 +1834,27 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio case b001: result = armv7_read_thumb_32_instr_uhadd16(raw); break; + case b010: result = armv7_read_thumb_32_instr_uhasx(raw); break; + case b110: result = armv7_read_thumb_32_instr_uhsax(raw); break; + case b101: result = armv7_read_thumb_32_instr_uhsub16(raw); break; + case b000: result = armv7_read_thumb_32_instr_uhadd8(raw); break; + case b100: result = armv7_read_thumb_32_instr_uhsub8(raw); break; + } break; @@ -1495,7 +1869,7 @@ static GArchInstruction *process_armv7_thumb_32_parallel_addition_and_subtractio * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.15. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1529,15 +1903,19 @@ static GArchInstruction *process_armv7_thumb_32_miscellaneous_operations(uint32_ case b00: result = armv7_read_thumb_32_instr_qadd(raw); break; + case b01: result = armv7_read_thumb_32_instr_qdadd(raw); break; + case b10: result = armv7_read_thumb_32_instr_qsub(raw); break; + case b11: result = armv7_read_thumb_32_instr_qdsub(raw); break; + } break; @@ -1547,15 +1925,19 @@ static GArchInstruction *process_armv7_thumb_32_miscellaneous_operations(uint32_ case b00: result = armv7_read_thumb_32_instr_rev(raw); break; + case b01: result = armv7_read_thumb_32_instr_rev16(raw); break; + case b10: result = armv7_read_thumb_32_instr_rbit(raw); break; + case b11: result = armv7_read_thumb_32_instr_revsh(raw); break; + } break; @@ -1580,7 +1962,7 @@ static GArchInstruction *process_armv7_thumb_32_miscellaneous_operations(uint32_ * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.16. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1616,8 +1998,10 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and { if (ra == b1111) result = armv7_read_thumb_32_instr_mul(raw); + else result = armv7_read_thumb_32_instr_mla(raw); + } else if (op2 == b01) @@ -1629,6 +2013,7 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and if (ra == b1111) result = armv7_read_thumb_32_instr_smulbb_smulbt_smultb_smultt(raw); + else result = armv7_read_thumb_32_instr_smlabb_smlabt_smlatb_smlatt(raw); @@ -1639,8 +2024,10 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and { if (ra == b1111) result = armv7_read_thumb_32_instr_smuad(raw); + else result = armv7_read_thumb_32_instr_smlad(raw); + } break; @@ -1649,8 +2036,10 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and { if (ra == b1111) result = armv7_read_thumb_32_instr_smulwb_smulwt(raw); + else result = armv7_read_thumb_32_instr_smlawb_smlawt(raw); + } break; @@ -1659,8 +2048,10 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and { if (ra == b1111) result = armv7_read_thumb_32_instr_smusd(raw); + else result = armv7_read_thumb_32_instr_smlsd(raw); + } break; @@ -1669,8 +2060,10 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and { if (ra == b1111) result = armv7_read_thumb_32_instr_smmul(raw); + else result = armv7_read_thumb_32_instr_smmla(raw); + } break; @@ -1684,8 +2077,10 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and { if (ra == b1111) result = armv7_read_thumb_32_instr_usad8(raw); + else result = armv7_read_thumb_32_instr_usada8(raw); + } break; @@ -1700,7 +2095,7 @@ static GArchInstruction *process_armv7_thumb_32_multiply_multiply_accumulate_and * * * Paramètres : raw = donnée brute de 32 bits à désassembler. * * * -* Description : Désassemble une instruction ARMv7 classique. * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.17. * * * * Retour : Instruction mise en place ou NULL en cas d'échec. * * * @@ -1783,18 +2178,104 @@ static GArchInstruction *process_armv7_thumb_32_long_multiply_long_multiply_accu } +/****************************************************************************** +* * +* Paramètres : raw = donnée brute de 32 bits à désassembler. * +* * +* Description : Désassemble une instruction ARMv7 liées au chapitre A6.3.18. * +* * +* Retour : Instruction mise en place ou NULL en cas d'échec. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static GArchInstruction *process_armv7_thumb_32_coprocessor_advanced_simd_and_floating_point_instructions(uint32_t raw) +{ + GArchInstruction *result; /* Instruction à renvoyer */ + uint32_t op1; /* Champ 'op1' à retrouver */ + uint32_t rn; /* Champ 'rn' à retrouver */ + uint32_t coproc; /* Champ 'coproc' à retrouver */ + uint32_t op; /* Champ 'op' à retrouver */ + + /** + * Suit les directives de : + * § A6.3.18 Coprocessor, Advanced SIMD, and Floating-point instructions + */ + + if ((raw & 0xec000000) != 0xec000000) return NULL; + + result = NULL; + + op1 = (raw >> 20) & 0x3f; + rn = (raw >> 16) & 0xf; + coproc = (raw >> 8) & 0xf; + op = (raw >> 4) & 0x1; + + if ((op1 & b111110) == b000000) + /* UNDEFINED */ + assert(false); + + else if ((op1 & b110000) == b110000) + /* Advanced SIMD data-processing instructions on page A7-261 */ + assert(false); + else if ((coproc & b1110) != b1010) + { + if ((op1 & b100001) == b000000 && (op1 & b111010) != b000000) + result = armv7_read_thumb_32_instr_stc_stc2(raw); + + else if ((op1 & b100001) == b000001 && (op1 & b111010) != b000000) + { + if (rn != b1111) + result = armv7_read_thumb_32_instr_ldc_ldc2_immediate(raw); + + else/* if (rn == b1111)*/ + result = armv7_read_thumb_32_instr_ldc_ldc2_literal(raw); + + } + else if (op1 == b000100) + result = armv7_read_thumb_32_instr_mcrr_mcrr2(raw); + else if (op1 == b000101) + result = armv7_read_thumb_32_instr_mrrc_mrrc2(raw); + else if ((op1 & b110000) == b100000 && op == b0) + result = armv7_read_thumb_32_instr_cdp_cdp2(raw); + else if ((op1 & b110001) == b100000 && op == b1) + result = armv7_read_thumb_32_instr_mcr_mcr2(raw); + else if ((op1 & b110001) == b100001 && op == b1) + result = armv7_read_thumb_32_instr_mrc_mrc2(raw); + } + else if ((coproc & b1110) == b1010) + { + if ((op1 & b100000) == b000000 && (op1 & b111010) != b000000) + /* Extension register load/store instructions on page A7-274 */ + assert(false); + else if ((op1 & b111110) == b000100) + /* 64-bit transfers between ARM core and extension registers on page A7-279 */ + assert(false); + else if ((op1 & b110000) == b100000) + { + if (op == b0) + /* Floating-point data-processing instructions on page A7-272 */ + assert(false); + else/* if (op == b1)*/ + /* 8, 16, and 32-bit transfer between ARM core and extension registers on page A7-278 */ + assert(false); + } + } + return result; +} diff --git a/src/arch/arm/v7/thumb_32.h b/src/arch/arm/v7/thumb_32.h index 57061f8..83e5ecb 100644 --- a/src/arch/arm/v7/thumb_32.h +++ b/src/arch/arm/v7/thumb_32.h @@ -29,7 +29,7 @@ -/* Désassemble une instruction ARMv7 en mode Thumb 32 bits. */ +/* Désassemble une instruction ARMv7 liées au chapitre A6.3. */ GArchInstruction *process_armv7_thumb_32_instruction_set_encoding(uint32_t); |