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authorCyrille Bagard <nocbos@gmail.com>2016-04-21 20:14:04 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2016-04-21 20:14:04 (GMT)
commitd062f5ffbac1250938206f4d2e15c44d8a9357f6 (patch)
treeb7bf90248866925515b3c2029eb7e9bbc12e6e05 /src/arch/arm/v7/thumb_32.c
parentc517a9defa6fae19007a398e0594074d08d18fd0 (diff)
Got prepared for more ARMv7 opcodes.
Diffstat (limited to 'src/arch/arm/v7/thumb_32.c')
-rw-r--r--src/arch/arm/v7/thumb_32.c605
1 files changed, 543 insertions, 62 deletions
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;
+}