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author | Cyrille Bagard <nocbos@gmail.com> | 2008-09-06 21:30:01 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2008-09-06 21:30:01 (GMT) |
commit | 4946ffe81e3edf35061a07cf4425f9accff11888 (patch) | |
tree | b27b61d398195c017a49bfa61ab6c8badc417b98 /src/arch/x86/op_push.c | |
parent | f14993aac5b0b4b7ae174f27e4d1f0f540057c58 (diff) |
Added more support for lea and push opcodes.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@25 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/x86/op_push.c')
-rw-r--r-- | src/arch/x86/op_push.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/arch/x86/op_push.c b/src/arch/x86/op_push.c index 0edd9bc..b577177 100644 --- a/src/arch/x86/op_push.c +++ b/src/arch/x86/op_push.c @@ -47,6 +47,58 @@ * * ******************************************************************************/ +asm_x86_instr *read_instr_push_content(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 *content; /* Registre de source */ + + 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)++; + } + else oprsize = get_x86_current_operand_size(proc); + + ASM_INSTRUCTION(result)->opcode = data[(*pos)++]; + + content = x86_create_content1632_operand(data, pos, len, oprsize == AOS_32_BITS, true); + if (content == NULL) + { + (*pos)--; + 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(content); + + 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 'push' (16 ou 32 bits). * +* * +* Retour : Instruction mise en place ou NULL. * +* * +* Remarques : - * +* * +******************************************************************************/ + asm_x86_instr *read_instr_push_imm1632(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 */ |