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arch_msp430.py
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arch_msp430.py
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from archinfo.arch import register_arch, Arch
class ArchMSP430(Arch):
def __init__(self, endness="Iend_LE"):
super(ArchMSP430, self).__init__(endness)
# TODO: Define function prologs
self.ip_offset = 0
self.sp_offset = 2
# bp_offset = 128
# ret_offset = 16
# lr_offset = 132
# syscall_num_offset = 16
self.call_pushes_ret = True
self.stack_change = -2
self.branch_delay_slot = False
self.default_register_values = [(n, 0, False, None) for n in self.register_index]
sizeof = {'short': 16, 'int': 16, 'long': 32, 'long long': 64}
function_prologs = {}
function_epilogs = {}
qemu_name = 'msp430'
bits = 16
name = "MSP430"
instruction_endness = "Iend_LE" # Yep. MSP's instructions are endy-flipped when stored relative to the ISA.
ida_processor = 'msp430'
max_inst_bytes = 6
ret_instruction = "\x98\x00"
nop_instruction = ""
instruction_alignment = 1
persistent_regs = []
entry_register_values = {
}
default_symbolic_registers = []
class Mode:
REGISTER_MODE = 0
INDEXED_MODE = 1
INDIRECT_REGISTER_MODE = 2
INDIRECT_AUTOINCREMENT_MODE = 3
SYMBOLIC_MODE = 4
ABSOLUTE_MODE = 5
IMMEDIATE_MODE = 6
CONSTANT_MODE0 = 7
CONSTANT_MODE1 = 8
CONSTANT_MODE2 = 9
CONSTANT_MODE4 = 10
CONSTANT_MODE8 = 11
CONSTANT_MODE_NEG1 = 12
OFFSET = 13
register_index = [
'pc',
'sp',
'sr',
'cg',
'r4',
'r5',
'r6',
'r7',
'r8',
'r9',
'r10',
'r11',
'r12',
'r13',
'r14',
'r15'
]
register_names = {
0: 'pc',
2: 'sp',
4: 'sr',
6: 'zero',
8: 'r4',
10: 'r5',
12: 'r6',
14: 'r7',
16: 'r8',
18: 'r9',
20: 'r10',
22: 'r11',
24: 'r12',
26: 'r13',
28: 'r14',
30: 'r15'
}
registers = {
'r0': (0, 2),
'pc': (0, 2),
'ip': (0, 2),
'r1': (2, 2),
'sp': (2, 2),
'r2': (4, 2),
'sr': (4, 2),
'r3': (6, 2),
'zero': (6, 2),
'cg': (6, 2),
'r4': (8, 2),
'r5': (10, 2),
'r6': (12, 2),
'r7': (14, 2),
'r8': (16, 2),
'r9': (18, 2),
'r10': (20, 2),
'r11': (22, 2),
'r12': (24, 2),
'r13': (26, 2),
'r14': (28, 2),
'r15': (30, 2)
}
argument_registers = {
registers['r4'][0],
registers['r5'][0],
registers['r6'][0],
registers['r7'][0],
registers['r8'][0],
registers['r9'][0],
registers['r10'][0],
registers['r11'][0],
registers['r12'][0],
registers['r13'][0],
registers['r14'][0],
registers['r15'][0],
}
# EDG: Can you even use PIC here? I don't think so
dynamic_tag_translation = {}
register_arch([r'msp|msp430|em_msp430'], 32, 'Iend_LE' , ArchMSP430)