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mips ¤

Classes:

Attributes:

BRANCH_LIKELY_INSTRUCTIONS module-attribute ¤

BRANCH_LIKELY_INSTRUCTIONS = {
    MIPS_INS_BC0TL,
    MIPS_INS_BC1TL,
    MIPS_INS_BC0FL,
    MIPS_INS_BC1FL,
    MIPS_INS_BEQL,
    MIPS_INS_BGEZALL,
    MIPS_INS_BGEZL,
    MIPS_INS_BGTZL,
    MIPS_INS_BLEZL,
    MIPS_INS_BLTZALL,
    MIPS_INS_BLTZL,
    MIPS_INS_BNEL,
}

CONDITION_RESOLVERS module-attribute ¤

CONDITION_RESOLVERS: dict[int, Callable[[list[int]], bool]] = {
    MIPS_INS_BEQZ: lambda ops: ops[0] == 0,
    MIPS_INS_BNEZ: lambda ops: ops[0] != 0,
    MIPS_INS_BEQ: lambda ops: ops[0] == ops[1],
    MIPS_INS_BNE: lambda ops: ops[0] != ops[1],
    MIPS_INS_BGEZ: lambda ops: to_signed(ops[0], ptrsize * 8) >= 0,
    MIPS_INS_BGEZAL: lambda ops: to_signed(ops[0], ptrsize * 8) >= 0,
    MIPS_INS_BGTZ: lambda ops: to_signed(ops[0], ptrsize * 8) > 0,
    MIPS_INS_BLEZ: lambda ops: to_signed(ops[0], ptrsize * 8) <= 0,
    MIPS_INS_BLTZAL: lambda ops: to_signed(ops[0], ptrsize * 8) < 0,
    MIPS_INS_BLTZ: lambda ops: to_signed(ops[0], ptrsize * 8) < 0,
}

MIPS_SIMPLE_DESTINATION_INSTRUCTIONS module-attribute ¤

MIPS_SIMPLE_DESTINATION_INSTRUCTIONS = {
    MIPS_INS_CLO,
    MIPS_INS_CLZ,
    MIPS_INS_DCLO,
    MIPS_INS_DCLZ,
    MIPS_INS_LSA,
    MIPS_INS_DLSA,
    MIPS_INS_MFHI,
    MIPS_INS_MFLO,
    MIPS_INS_SEB,
    MIPS_INS_SEH,
    MIPS_INS_WSBH,
    MIPS_INS_SLT,
    MIPS_INS_SLTI,
    MIPS_INS_SLTIU,
    MIPS_INS_SLTU,
    MIPS_INS_MOVN,
    MIPS_INS_LDL,
    MIPS_INS_LDR,
    MIPS_INS_LWL,
    MIPS_INS_LWR,
}

MIPS_LOAD_INSTRUCTIONS module-attribute ¤

MIPS_LOAD_INSTRUCTIONS = {
    MIPS_INS_LB: -1,
    MIPS_INS_LBU: 1,
    MIPS_INS_LH: -2,
    MIPS_INS_LHU: 2,
    MIPS_INS_LW: -4,
    MIPS_INS_LWU: 4,
    MIPS_INS_LWPC: -4,
    MIPS_INS_LWUPC: 4,
    MIPS_INS_LD: -8,
    MIPS_INS_LDPC: 8,
}

MIPS_STORE_INSTRUCTIONS module-attribute ¤

MIPS_STORE_INSTRUCTIONS = {
    MIPS_INS_SB: 1,
    MIPS_INS_SH: 2,
    MIPS_INS_SW: 4,
    MIPS_INS_SD: 8,
}

MIPS_BINARY_OPERATIONS module-attribute ¤

MIPS_BINARY_OPERATIONS = {
    MIPS_INS_ADD: "+",
    MIPS_INS_ADDI: "+",
    MIPS_INS_ADDIU: "+",
    MIPS_INS_ADDU: "+",
    MIPS_INS_DADD: "+",
    MIPS_INS_DADDI: "+",
    MIPS_INS_DADDIU: "+",
    MIPS_INS_DADDU: "+",
    MIPS_INS_SUB: "-",
    MIPS_INS_SUBU: "-",
    MIPS_INS_DSUB: "-",
    MIPS_INS_DSUBU: "-",
    MIPS_INS_ANDI: "&",
    MIPS_INS_AND: "&",
    MIPS_INS_ORI: "|",
    MIPS_INS_OR: "|",
    MIPS_INS_XOR: "^",
    MIPS_INS_XORI: "^",
    MIPS_INS_SLL: "<<",
    MIPS_INS_SLLV: "<<",
    MIPS_INS_DSLL: "<<",
    MIPS_INS_DSLLV: "<<",
    MIPS_INS_SRL: ">>",
    MIPS_INS_SRLV: ">>",
    MIPS_INS_DSRL: ">>",
    MIPS_INS_DSRLV: ">>",
}

assistant module-attribute ¤

assistant = DisassemblyAssistant('mips')

DisassemblyAssistant ¤

DisassemblyAssistant(architecture: str)

Bases: DisassemblyAssistant

Methods:

Attributes:

annotation_handlers instance-attribute ¤

annotation_handlers: dict[
    int, Callable[[PwndbgInstruction, Emulator], None]
] = {
    MIPS_INS_MOVE: _common_move_annotator,
    MIPS_INS_LI: _common_move_annotator,
    MIPS_INS_LUI: _lui_annotator,
}

assistants class-attribute instance-attribute ¤

assistants: dict[str, DisassemblyAssistant] = {}

op_handlers instance-attribute ¤

op_handlers: dict[
    int, Callable[[PwndbgInstruction, EnhancedOperand, Emulator], int | None]
] = {
    CS_OP_IMM: _parse_immediate,
    CS_OP_REG: _parse_register,
    CS_OP_MEM: _parse_memory,
}

op_names instance-attribute ¤

op_names: dict[
    int, Callable[[PwndbgInstruction, EnhancedOperand], str | None]
] = {
    CS_OP_IMM: _immediate_string,
    CS_OP_REG: _register_string,
    CS_OP_MEM: _memory_string,
}

for_current_arch staticmethod ¤

for_current_arch() -> DisassemblyAssistant

enhance staticmethod ¤

enhance(instruction: PwndbgInstruction, emu: Emulator = None) -> None

can_reason_about_process_state ¤

can_reason_about_process_state(instruction: PwndbgInstruction) -> bool

Determine if the program counter of the process equals the address of the instruction being enhanced. If so, it means we can safely reason and read from registers and memory to enhance values that we can add to the annotation string. This becomes relevent when NOT emulating, and is meant to allow more details when the PC is at the instruction being enhanced

dump ¤

dump(instruction: PwndbgInstruction)

Debug-only method.