Centralized all the code used to decode instructions.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@32 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

1 files changed, 81 insertions, 62 deletions

diff --git a/src/arch/x86/processor.c b/src/arch/x86/processor.c
index 5b93e0a..0b81a8c 100644
--- a/src/arch/x86/processor.c
+++ b/src/arch/x86/processor.c
@@ -164,6 +164,8 @@ AsmOperandSize get_x86_current_operand_size(const asm_x86_processor *proc)
 /******************************************************************************
 *                                                                             *
 *  Paramètres  : proc = architecture visée par la consultation.               *
+*                data = flux de données à analyser.                           *
+*                pos  = position courante dans ce flux. [OUT]                 *
 *                                                                             *
 *  Description : Fournit la taille supplantée des opérandes pour x86.         *
 *                                                                             *
@@ -173,9 +175,18 @@ AsmOperandSize get_x86_current_operand_size(const asm_x86_processor *proc)
 *                                                                             *
 ******************************************************************************/
 
-AsmOperandSize switch_x86_operand_size(const asm_x86_processor *proc)
+AsmOperandSize switch_x86_operand_size_if_needed(const asm_x86_processor *proc, const uint8_t *data, off_t *pos)
 {
-    return (proc->operand_size == AOS_32_BITS ? AOS_16_BITS : AOS_32_BITS);
+    AsmOperandSize result;                  /* Taille à renvoyer           */
+
+    if (data[*pos] == 0x66)
+    {
+        result = (proc->operand_size == AOS_32_BITS ? AOS_16_BITS : AOS_32_BITS);
+        (*pos)++;
+    }
+    else result = proc->operand_size;
+
+    return result;
 
 }
 
@@ -194,72 +205,80 @@ AsmOperandSize switch_x86_operand_size(const asm_x86_processor *proc)
 
 void x86_register_instructions(asm_x86_processor *proc)
 {
-    register_opcode(proc->opcodes[X86_OP_SUB_R1632_RM1632], 0x66, 0x29, "sub", x86_read_instr_sub_r1632_to_rm1632);
+    register_opcode(proc->opcodes[X86_OP_SUB_R1632_RM1632], 0x66, 0x29, "sub", x86_read_instr_sub_r1632_from_rm1632);
 
-    register_opcode(proc->opcodes[X86_OP_XOR_REG1632], 0x00/*0x66*/, 0x31, "xor", x86_read_instr_xor_with_reg1632);
+    register_opcode(proc->opcodes[X86_OP_XOR_RM8_R8], 0x00, 0x30, "xor", x86_read_instr_xor_rm8_with_r8);
+    register_opcode(proc->opcodes[X86_OP_XOR_RM1632_R1632], 0x66, 0x31, "xor", x86_read_instr_xor_rm1632_with_r1632);
+    register_opcode(proc->opcodes[X86_OP_XOR_R8_RM8], 0x00, 0x32, "xor", x86_read_instr_xor_r8_with_rm8);
+    register_opcode(proc->opcodes[X86_OP_XOR_R1632_RM1632], 0x66, 0x33, "xor", x86_read_instr_xor_r1632_with_rm1632);
+    register_opcode(proc->opcodes[X86_OP_XOR_AL_IMM8], 0x00, 0x34, "xor", x86_read_instr_xor_al_with_imm8);
+    register_opcode(proc->opcodes[X86_OP_XOR_E_AX_IMM1632], 0x66, 0x35, "xor", x86_read_instr_xor_e_ax_with_imm1632);
 
     register_opcode(proc->opcodes[X86_OP_CMP_RM1632_R1632], 0x66, 0x39, "cmp", x86_read_instr_cmp_rm1632_with_r1632);
 
-    register_opcode(proc->opcodes[X86_OP_INC_E_AX], 0x66, 0x40, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_CX], 0x66, 0x41, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_DX], 0x66, 0x42, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_BX], 0x66, 0x43, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_SP], 0x66, 0x44, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_BP], 0x66, 0x45, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_SI], 0x66, 0x46, "inc", x86_read_instr_inc_1632);
-    register_opcode(proc->opcodes[X86_OP_INC_E_DI], 0x66, 0x47, "inc", x86_read_instr_inc_1632);
-
-    register_opcode(proc->opcodes[X86_OP_DEC_E_AX], 0x66, 0x48, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_CX], 0x66, 0x49, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_DX], 0x66, 0x4a, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_BX], 0x66, 0x4b, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_SP], 0x66, 0x4c, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_BP], 0x66, 0x4d, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_SI], 0x66, 0x4e, "dec", x86_read_instr_dec_1632);
-    register_opcode(proc->opcodes[X86_OP_DEC_E_DI], 0x66, 0x4f, "dec", x86_read_instr_dec_1632);
-
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_AX], 0x66, 0x50, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_CX], 0x66, 0x51, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_DX], 0x66, 0x52, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_BX], 0x66, 0x53, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_SP], 0x66, 0x54, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_BP], 0x66, 0x55, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_SI], 0x66, 0x56, "push", x86_read_instr_push_reg1632);
-    register_opcode(proc->opcodes[X86_OP_PUSH_E_DI], 0x66, 0x57, "push", x86_read_instr_push_reg1632);
-
-    register_opcode(proc->opcodes[X86_OP_POP_E_AX], 0x66, 0x58, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_CX], 0x66, 0x59, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_DX], 0x66, 0x5a, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_BX], 0x66, 0x5b, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_SP], 0x66, 0x5c, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_BP], 0x66, 0x5d, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_SI], 0x66, 0x5e, "pop", x86_read_instr_pop_reg1632);
-    register_opcode(proc->opcodes[X86_OP_POP_E_DI], 0x66, 0x5f, "pop", x86_read_instr_pop_reg1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_AX], 0x66, 0x40, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_CX], 0x66, 0x41, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_DX], 0x66, 0x42, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_BX], 0x66, 0x43, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_SP], 0x66, 0x44, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_BP], 0x66, 0x45, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_SI], 0x66, 0x46, "inc", x86_read_instr_inc_r1632);
+    register_opcode(proc->opcodes[X86_OP_INC_E_DI], 0x66, 0x47, "inc", x86_read_instr_inc_r1632);
+
+    register_opcode(proc->opcodes[X86_OP_DEC_E_AX], 0x66, 0x48, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_CX], 0x66, 0x49, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_DX], 0x66, 0x4a, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_BX], 0x66, 0x4b, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_SP], 0x66, 0x4c, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_BP], 0x66, 0x4d, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_SI], 0x66, 0x4e, "dec", x86_read_instr_dec_r1632);
+    register_opcode(proc->opcodes[X86_OP_DEC_E_DI], 0x66, 0x4f, "dec", x86_read_instr_dec_r1632);
+
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_AX], 0x66, 0x50, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_CX], 0x66, 0x51, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_DX], 0x66, 0x52, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_BX], 0x66, 0x53, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_SP], 0x66, 0x54, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_BP], 0x66, 0x55, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_SI], 0x66, 0x56, "push", x86_read_instr_push_r1632);
+    register_opcode(proc->opcodes[X86_OP_PUSH_E_DI], 0x66, 0x57, "push", x86_read_instr_push_r1632);
+
+    register_opcode(proc->opcodes[X86_OP_POP_E_AX], 0x66, 0x58, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_CX], 0x66, 0x59, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_DX], 0x66, 0x5a, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_BX], 0x66, 0x5b, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_SP], 0x66, 0x5c, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_BP], 0x66, 0x5d, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_SI], 0x66, 0x5e, "pop", x86_read_instr_pop_r1632);
+    register_opcode(proc->opcodes[X86_OP_POP_E_DI], 0x66, 0x5f, "pop", x86_read_instr_pop_r1632);
 
     register_opcode(proc->opcodes[X86_OP_PUSH_IMM1632], 0x66, 0x68, "push", x86_read_instr_push_imm1632);
 
+    register_opcode_with_ext(proc->opcodes[X86_OP_XOR_RM8_IMM8], 0x00, 0x80, 6, "xor", x86_read_instr_xor_rm8_with_imm8);
     register_opcode_with_ext(proc->opcodes[X86_OP_CMP_RM8_IMM8], 0x00, 0x80, 7, "cmp", x86_read_instr_cmp_rm8_with_imm8);
 
-    register_opcode_with_ext(proc->opcodes[X86_OP_ADD_IMM1632_REG1632], 0x66, 0x81, 0, "add", x86_read_instr_add_imm1632_to_rm1632);
+    register_opcode_with_ext(proc->opcodes[X86_OP_ADD_RM1632_IMM1632], 0x66, 0x81, 0, "add", x86_read_instr_add_imm1632_to_rm1632);
+
+    register_opcode_with_ext(proc->opcodes[X86_OP_XOR_RM1632_IMM1632], 0x66, 0x81, 6, "xor", x86_read_instr_xor_rm1632_with_imm1632);
 
-    register_opcode_with_ext(proc->opcodes[X86_OP_ADD8_REG1632], 0x66, 0x83, 0, "add", x86_read_instr_add8_with_reg1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_OR8_REG1632], 0x66, 0x83, 1, "or", x86_read_instr_or8_with_reg1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_ADC8_REG1632], 0x66, 0x83, 2, "adc", x86_read_instr_adc8_with_reg1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_SBB8_REG1632], 0x66, 0x83, 3, "sbb", x86_read_instr_sbb8_with_reg1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_AND8_REG1632], 0x66, 0x83, 4, "and", x86_read_instr_and8_with_reg1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_SUB8_REG1632], 0x66, 0x83, 5, "sub", x86_read_instr_sub8_with_reg1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_XOR8_REG1632], 0x66, 0x83, 6, "xor", x86_read_instr_xor8_with_reg1632);
+    register_opcode_with_ext(proc->opcodes[X86_OP_ADD_RM1632_IMM8], 0x66, 0x83, 0, "add", x86_read_instr_add_imm8_to_rm1632);
+    register_opcode_with_ext(proc->opcodes[X86_OP_OR_RM1632_IMM8], 0x66, 0x83, 1, "or", x86_read_instr_or_rm1632_with_imm8);
+    register_opcode_with_ext(proc->opcodes[X86_OP_ADC_RM1632_IMM8], 0x66, 0x83, 2, "adc", x86_read_instr_adc_imm8_to_rm1632);
+    register_opcode_with_ext(proc->opcodes[X86_OP_SBB_RM1632_IMM8], 0x66, 0x83, 3, "sbb", x86_read_instr_sbb_rm1632_with_imm8);
+    register_opcode_with_ext(proc->opcodes[X86_OP_AND_RM1632_IMM8], 0x66, 0x83, 4, "and", x86_read_instr_and_rm1632_with_imm8);
+    register_opcode_with_ext(proc->opcodes[X86_OP_SUB_RM1632_IMM8], 0x66, 0x83, 5, "sub", x86_read_instr_sub_imm8_from_rm1632);
+    register_opcode_with_ext(proc->opcodes[X86_OP_XOR_RM1632_IMM8], 0x66, 0x83, 6, "xor", x86_read_instr_xor_rm1632_with_imm8);
     register_opcode_with_ext(proc->opcodes[X86_OP_CMP_RM1632_IMM8], 0x66, 0x83, 7, "cmp", x86_read_instr_cmp_rm1632_with_imm8);
 
     register_opcode(proc->opcodes[X86_OP_JE_8], 0x00, 0x74, "je", x86_read_instr_je_8);
     register_opcode(proc->opcodes[X86_OP_JNE_8], 0x00, 0x75, "jne", x86_read_instr_jne_8);
 
-    register_opcode(proc->opcodes[X86_OP_TEST_RM8], 0x00, 0x84, "test", x86_read_instr_test_rm8);
-    register_opcode(proc->opcodes[X86_OP_TEST_RM1632], 0x66, 0x85, "test", x86_read_instr_test_rm1632);
+    register_opcode(proc->opcodes[X86_OP_TEST_RM8_R8], 0x00, 0x84, "test", x86_read_instr_test_rm8_with_r8);
+    register_opcode(proc->opcodes[X86_OP_TEST_RM1632_R1632], 0x66, 0x85, "test", x86_read_instr_test_rm1632_with_r1632);
 
-    register_opcode(proc->opcodes[X86_OP_MOV_REG1632], 0x66, 0x89, "mov", x86_read_instr_mov_with_reg1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_RM1632_R1632], 0x66, 0x89, "mov", x86_read_instr_mov_r1632_to_rm1632);
 
-    register_opcode(proc->opcodes[X86_OP_MOV_FROM_CONTENT1632], 0x66, 0x8b, "mov", x86_read_instr_mov_from_content_1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_R1632_RM1632], 0x66, 0x8b, "mov", x86_read_instr_mov_rm1632_to_r1632);
 
     register_opcode(proc->opcodes[X86_OP_LEA], 0x66, 0x8d, "lea", x86_read_instr_lea);
 
@@ -273,35 +292,35 @@ void x86_register_instructions(asm_x86_processor *proc)
     register_opcode(proc->opcodes[X86_OP_TEST_AL], 0x00, 0xa8, "test", x86_read_instr_test_al);
     register_opcode(proc->opcodes[X86_OP_TEST_E_AX], 0x66, 0xa9, "test", x86_read_instr_test_e_ax);
 
-    register_opcode(proc->opcodes[X86_OP_MOV_E_AX], 0x66, 0xb8, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_CX], 0x66, 0xb9, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_DX], 0x66, 0xba, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_BX], 0x66, 0xbb, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_SP], 0x66, 0xbc, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_BP], 0x66, 0xbd, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_SI], 0x66, 0xbe, "mov", x86_read_instr_mov_to_1632);
-    register_opcode(proc->opcodes[X86_OP_MOV_E_DI], 0x66, 0xbf, "mov", x86_read_instr_mov_to_1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_AX], 0x66, 0xb8, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_CX], 0x66, 0xb9, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_DX], 0x66, 0xba, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_BX], 0x66, 0xbb, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_SP], 0x66, 0xbc, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_BP], 0x66, 0xbd, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_SI], 0x66, 0xbe, "mov", x86_read_instr_mov_imm1632_to_r1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_E_DI], 0x66, 0xbf, "mov", x86_read_instr_mov_imm1632_to_r1632);
 
     register_opcode_with_ext(proc->opcodes[X86_OP_SAR_RM1632_IMM8], 0x66, 0xc1, 7, "sar", x86_read_instr_sar_rm1632_with_imm8);
 
     register_opcode(proc->opcodes[X86_OP_RET], 0x00, 0xc3, "ret", x86_read_instr_ret);
 
     register_opcode(proc->opcodes[X86_OP_MOV_IMM8_TO_RM8], 0x00, 0xc6, "mov", x86_read_instr_mov_imm8_to_rm8);
-    register_opcode(proc->opcodes[X86_OP_MOV_TO_CONTENT1632], 0x66, 0xc7, "mov", x86_read_instr_mov_to_content_1632);
+    register_opcode(proc->opcodes[X86_OP_MOV_IMM1632_TO_RM1632], 0x66, 0xc7, "mov", x86_read_instr_mov_imm1632_to_rm1632);
 
     register_opcode(proc->opcodes[X86_OP_LEAVE], 0x00, 0xc9, "leave", x86_read_instr_leave);
 
     register_opcode(proc->opcodes[X86_OP_INT], 0x00, 0xcd, "int", x86_read_instr_int);
 
 
-    register_opcode(proc->opcodes[X86_OP_CALL], 0x00, 0xe8, "call", x86_read_instr_call);
+    register_opcode(proc->opcodes[X86_OP_CALL_REL1632], 0x66, 0xe8, "call", x86_read_instr_call_rel1632);
 
     register_opcode(proc->opcodes[X86_OP_JMP_8], 0x00, 0xeb, "jmp", x86_read_instr_jmp_8);
 
     register_opcode(proc->opcodes[X86_OP_HLT], 0x00, 0xf4, "hlt", x86_read_instr_hlt);
 
     register_opcode_with_ext(proc->opcodes[X86_OP_CALL_RM1632], 0x66, 0xff, 2, "call", x86_read_instr_call_rm1632);
-    register_opcode_with_ext(proc->opcodes[X86_OP_PUSH_CONTENT], 0x66, 0xff, 6, "push", x86_read_instr_push_content);
+    register_opcode_with_ext(proc->opcodes[X86_OP_PUSH_RM1632], 0x66, 0xff, 6, "push", x86_read_instr_push_rm1632);
 
 
 }