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Start fleshing out decompiler

This commit is contained in:
Jeffrey Pfau 2013-10-30 23:22:54 -07:00
parent 5b91d6d336
commit 66d1c0c55c
1 changed files with 72 additions and 0 deletions
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72
src/arm/decompiler.h
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@ -3,8 +3,80 @@
#include <stdint.h> #include <stdint.h>
union ARMOperand {
uint8_t reg;
int32_t immediate;
};
struct ARMMemoryAccess {
uint8_t baseRegister;
union ARMOperand offset;
};
enum ARMOperandFormat {
ARM_OPERAND_NONE = 0x00000000,
ARM_OPERAND_REGISTER_1 = 0x00000001,
ARM_OPERAND_IMMEDIATE_1 = 0x00000002,
ARM_OPERAND_MEMORY_REGISTER_1 = 0x00000005,
ARM_OPERAND_MEMORY_IMMEDIATE_1 = 0x00000006,
ARM_OPERAND_MEMORY_OFFSET_1 = 0x00000007,
ARM_OPERAND_AFFECTED_1 = 0x00000080,
ARM_OPERAND_MEMORY_POST_INCR_1 = 0x00000097,
ARM_OPERAND_MEMORY_PRE_INCR_1 = 0x000000A7,
};
enum ThumbMnemonic {
THUMB_MN_ILL = 0,
THUMB_MN_ADC,
THUMB_MN_ADD,
THUMB_MN_AND,
THUMB_MN_ASR,
THUMB_MN_B,
THUMB_MN_BIC,
THUMB_MN_BL,
THUMB_MN_BLH,
THUMB_MN_BX,
THUMB_MN_CMN,
THUMB_MN_CMP,
THUMB_MN_EOR,
THUMB_MN_LDMIA,
THUMB_MN_LDR,
THUMB_MN_LDRB,
THUMB_MN_LDRH,
THUMB_MN_LDRSB,
THUMB_MN_LDRSH,
THUMB_MN_LSL,
THUMB_MN_LSR,
THUMB_MN_MOV,
THUMB_MN_MUL,
THUMB_MN_MVN,
THUMB_MN_NEG,
THUMB_MN_ORR,
THUMB_MN_POP,
THUMB_MN_PUSH,
THUMB_MN_ROR,
THUMB_MN_SBC,
THUMB_MN_STMIA,
THUMB_MN_STR,
THUMB_MN_STRB,
THUMB_MN_STRH,
THUMB_MN_SUB,
THUMB_MN_SWI,
THUMB_MN_TST
};
struct ThumbInstructionInfo { struct ThumbInstructionInfo {
uint16_t opcode; uint16_t opcode;
enum ThumbMnemonic mnemonic;
union ARMOperand op1;
union ARMOperand op2;
union ARMOperand op3;
struct ARMMemoryAccess memory;
int immediateFormat;
int operandFormat;
int branches;
int accessesMemory;
int accessesHighRegisters;
}; };
void ARMDecodeThumb(uint16_t opcode, struct ThumbInstructionInfo* info); void ARMDecodeThumb(uint16_t opcode, struct ThumbInstructionInfo* info);