diff options
Diffstat (limited to 'src/arch/x86/op_call.c')
| -rw-r--r-- | src/arch/x86/op_call.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/arch/x86/op_call.c b/src/arch/x86/op_call.c index 61d9874..f7330ca 100644 --- a/src/arch/x86/op_call.c +++ b/src/arch/x86/op_call.c @@ -81,3 +81,55 @@ asm_x86_instr *read_instr_call(const uint8_t *data, off_t *pos, off_t len, uint6 return result; } + + +/****************************************************************************** +* * +* Paramètres : data = flux de données à analyser. * +* pos = position courante dans ce flux. [OUT] * +* len = taille totale des données à analyser. * +* offset = adresse virtuelle de l'instruction. * +* proc = architecture ciblée par le désassemblage. * +* * +* Description : Décode une instruction de type 'call' (16 ou 32 bits). * +* * +* Retour : Instruction mise en place ou NULL. * +* * +* Remarques : - * +* * +******************************************************************************/ + +asm_x86_instr *x86_read_instr_call_rm1632(const uint8_t *data, off_t *pos, off_t len, uint64_t offset, const asm_x86_processor *proc) +{ + asm_x86_instr *result; /* Instruction à retourner */ + AsmOperandSize oprsize; /* Taille des opérandes */ + asm_x86_operand *reg; /* Elément à appeler */ + + result = (asm_x86_instr *)calloc(1, sizeof(asm_x86_instr)); + + /* Utilisation des registres 32 bits ? */ + if (data[*pos] == 0x66) + { + oprsize = switch_x86_operand_size(proc); + (*pos)++; + offset++; + } + else oprsize = get_x86_current_operand_size(proc); + + ASM_INSTRUCTION(result)->opcode = data[(*pos)++]; + + reg = x86_create_rm1632_operand(data, pos, len, oprsize == AOS_32_BITS, true); + if (reg == NULL) + { + free(result); + return NULL; + } + + ASM_INSTRUCTION(result)->operands = (asm_operand **)calloc(1, sizeof(asm_operand *)); + ASM_INSTRUCTION(result)->operands_count = 1; + + ASM_INSTRUCTION(result)->operands[0] = ASM_OPERAND(reg); + + return result; + +} |