mirror of https://github.com/zeldaret/tmc.git
321 lines
10 KiB
Python
321 lines
10 KiB
Python
from dataclasses import dataclass
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import struct
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# Disassembler for tmc scripts
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# Input 'macros' to generate the macros for the script commands
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# Input the script bytes as hex to disassemble the script
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@dataclass
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class Context:
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ptr: int
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data: bytes
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def u16_to_hex(value):
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return '0x' + (struct.pack('>H', value).hex())
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def barray_to_u16_hex(barray):
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count = len(barray)//2
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integers = struct.unpack('H'*count, barray)
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return [u16_to_hex(x) for x in integers]
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def u32_to_hex(value):
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return '0x' + (struct.pack('>I', value).hex())
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def barray_to_u32_hex(barray):
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count = len(barray)//4
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integers = struct.unpack('I'*count, barray)
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return [u32_to_hex(x) for x in integers]
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"""
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def GetNextScriptCommandWordAfterCommandMetadata(ctx):
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return struct.unpack('I', ctx.data[ctx.ptr+2:ctx.ptr+6])[0]
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def sub_0807E10C(ctx):
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meta = GetNextScriptCommandWordAfterCommandMetadata(ctx)
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print('function', hex(meta))
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def sub_0807E5F8(ctx):
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curPtr = start + ctx.ptr
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print('current', hex(curPtr))
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# gUnk_02033280.unk_00 |= GetNextScriptCommandWordAfterCommandMetadata(unk2->unk_00.raw);
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meta = GetNextScriptCommandWordAfterCommandMetadata(ctx)
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print('meta', meta)
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newPtr = curPtr | meta
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print('Start next script at: ', hex(newPtr))
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"""
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commands = [
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{'fun': 'nullsub_507', 'params': ''},
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{'fun': 'sub_0807E004', 'params': '', 'name': 'start executing scripts'},
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{'fun': 'sub_0807E014', 'params': '', 'name': 'stop executing scripts'},
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{'fun': 'sub_0807E024', 'params': 's', 'name': 'jump by offset'},
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{'fun': 'sub_0807E050', 'params': 's', 'name': 'jump if'},
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{'fun': 'sub_0807E064', 'params': 's', 'name': 'jump if not'},
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{'fun': 'sub_0807E078', 'params': 's'},
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{'fun': 'sub_0807E0A0', 'params': 'w','name': 'abs jump' },
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{'fun': 'sub_0807E0B8', 'params': 'w', 'name': 'abs jump if'},
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{'fun': 'sub_0807E0CC', 'params': 'w', 'name': 'abs jump if not'},
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{'fun': 'sub_0807E0E0', 'params': 'w'},
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{'fun': 'sub_0807E10C', 'params':'w', 'name': 'Execute function via pointer'},# 'exec': sub_0807E10C},
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{'fun': 'sub_0807E124', 'params': 'ww'},
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{'fun': 'sub_0807E148', 'params': 'w'},
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{'fun': 'sub_0807E158', 'params': 'w'},
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{'fun': 'sub_0807E188', 'params': 's'},
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{'fun': 'sub_0807E1D8', 'params': 's'},
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{'fun': 'sub_0807E4AC', 'params': 's'},
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{'fun': 'sub_0807E200'},
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{'fun': 'sub_0807E220'},
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{'fun': 'sub_0807E240'},
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{'fun': 'sub_0807E260', 'params': 's'},
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{'fun': 'sub_0807E280'},
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{'fun': 'sub_0807E2A8', 'params': 's'},
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{'fun': 'sub_0807E2E4', 'params': ''},
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{'fun': 'sub_0807E30C', 'params': ''},
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{'fun': 'sub_0807E390'},
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{'fun': 'sub_0807E3BC'},
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{'fun': 'sub_0807E3E8'},
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{'fun': 'sub_0807E40C', 'params': 's'},
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{'fun': 'sub_0807E42C'},
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{'fun': 'sub_0807E48C'},
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{'fun': 'sub_0807E4CC'},
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{'fun': 'sub_0807E4EC'},
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{'fun': 'sub_0807E514'},
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{'fun': 'sub_0807E538'},
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{'fun': 'sub_0807E564'},
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{'fun': 'sub_0807E584'},
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{'fun': 'sub_0807E5A0'},
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{'fun': 'sub_0807E5CC'},
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{'fun': 'sub_0807E5F8', 'params': 'w'},# 'exec': sub_0807E5F8},
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{'fun': 'sub_0807E610'},
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{'fun': 'sub_0807E628'},
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{'fun': 'sub_0807E634'},
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{'fun': 'sub_0807E644'},
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{'fun': 'sub_0807E650', 'params': 's'},
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{'fun': 'sub_0807E65C'},
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{'fun': 'sub_0807E668'},
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{'fun': 'sub_0807E674'},
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{'fun': 'sub_0807E680', 'params': 's'},
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{'fun': 'sub_0807E690'},
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{'fun': 'sub_0807E6AC', 'params': 'w'},
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{'fun': 'sub_0807E6DC', 'params': ''},
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{'fun': 'sub_0807E700'},
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{'fun': 'sub_0807E72C'},
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{'fun': 'sub_0807E75C'},
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{'fun': 'sub_0807E778'},
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{'fun': 'sub_0807E788'},
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{'fun': 'sub_0807E79C'},
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{'fun': 'nullsub_508'},
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{'fun': 'sub_0807E7B0'},
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{'fun': 'sub_0807E7C4'},
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{'fun': 'sub_0807E7D8'},
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{'fun': 'sub_0807E7EC'},
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{'fun': 'sub_0807E800'},
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{'fun': 'sub_0807E80C'},
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{'fun': 'sub_0807E858'},
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{'fun': 'sub_0807E864', 'params': ''},
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{'fun': 'sub_0807E878', 'params': ''},
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{'fun': 'sub_0807E888'},
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{'fun': 'sub_0807E898'},
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{'fun': 'sub_0807E8C4', 'params': 'w'},
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{'fun': 'sub_0807E8D4'},
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{'fun': 'sub_0807E8E4_0', 'params': ''}, # duplicate
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{'fun': 'sub_0807E8E4_1', 'params': ''}, # duplicate
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{'fun': 'sub_0807E8E4_2', 'params': ''}, # duplicate
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{'fun': 'sub_0807E8E4_3', 'params': ''}, # duplicate
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{'fun': 'sub_0807E908'},
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{'fun': 'sub_0807E914'},
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{'fun': 'sub_0807E924'},
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{'fun': 'sub_0807E930', 'params': 's'},
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{'fun': 'sub_0807E944', 'params': ''},
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{'fun': 'sub_0807E974'},
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{'fun': 'sub_0807E9D4', 'params': ''},
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{'fun': 'sub_0807E9DC', 'params': ''},
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{'fun': 'sub_0807E9E4'},
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{'fun': 'sub_0807E9F0', 'params': ''},
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{'fun': 'sub_0807EA4C', 'params': ''},
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{'fun': 'sub_0807EA88'},
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{'fun': 'sub_0807EA94', 'params': ''},
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{'fun': 'sub_0807EAB4', 'params': 's'},
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{'fun': 'sub_0807EAC0'},
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{'fun': 'sub_0807EAD0', 'params': 'ss'},
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{'fun': 'sub_0807EAF0'},
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{'fun': 'sub_0807EB18'},
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{'fun': 'sub_0807EB28', 'params': 's'},
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{'fun': 'sub_0807EB38'},
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{'fun': 'sub_0807EB44', 'params': 's'},
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{'fun': 'sub_0807EB4C'},
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{'fun': 'sub_0807EB74', 'params': ''},
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{'fun': 'sub_0807EB8C', 'params': ''},
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{'fun': 'sub_0807EBA8'},
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{'fun': 'sub_0807EBB0'},
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{'fun': 'sub_0807EBC0', 'params': 's'},
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{'fun': 'sub_0807EBC8'},
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{'fun': 'sub_0807EBD8'},
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{'fun': 'sub_0807EBF4'},
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{'fun': 'sub_0807EC08'},
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{'fun': 'nullsub_509'},
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{'fun': 'sub_0807EC1C', 'params': 's'},
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{'fun': 'sub_0807EC64'},
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{'fun': 'sub_0807EC94'},
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{'fun': 'sub_0807ECC4'},
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{'fun': 'sub_0807ECF4', 'params': 's'},
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{'fun': 'sub_0807ED24'},
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{'fun': 'sub_0807EDD4', 'params': 'ss'},
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{'fun': 'sub_0807EE04'},
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{'fun': 'sub_0807EE30', 'params': ''},
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{'fun': 'sub_0807EEB4'},
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{'fun': 'sub_0807EEF4'},
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{'fun': 'sub_0807EF3C'},
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{'fun': 'sub_0807EF80', 'params': 's'},
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{'fun': 'sub_0807EF90'},
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{'fun': 'sub_0807EFA0'},
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{'fun': 'sub_0807EFAC', 'params': 's'},
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{'fun': 'sub_0807EFD4'},
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{'fun': 'sub_0807EFE4', 'params': ''},
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{'fun': 'sub_0807EFF4'},
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{'fun': 'sub_0807F004'},
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{'fun': 'sub_0807F010'},
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{'fun': 'sub_0807F034', 'params': 's'},
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{'fun': 'sub_0807F050'},
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{'fun': 'sub_0807F060'},
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{'fun': 'sub_0807F078'},
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{'fun': 'sub_0807F088'},
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{'fun': 'sub_0807F098', 'params': ''},
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{'fun': 'sub_0807F0A4'},
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{'fun': 'sub_0807F0B4', 'params': 's'},
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{'fun': 'sub_0807F0C8'}
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]
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# definitions for parameters
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parameters = {
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'': {
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'length':0,
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'param': '',
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'expr': '',
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'read': lambda ctx: ''
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},
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's': {
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'length': 1,
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'param': 's',
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'expr': ' .short \s',
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'read': lambda ctx: barray_to_u16_hex(ctx.data[ctx.ptr+2:ctx.ptr+4])[0]
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},
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'w': {
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'length': 2,
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'param': 'w',
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'expr': ' .word \w',
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'read': lambda ctx: barray_to_u32_hex(ctx.data[ctx.ptr+2:ctx.ptr+6])[0]
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},
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'ss': {
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'length': 2,
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'param': 'a,b',
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'expr': ' .short \\a\n .short \\b',
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'read': lambda ctx: ', '.join(barray_to_u16_hex(ctx.data[ctx.ptr+2:ctx.ptr+6]))
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},
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'ww': {
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'length': 4,
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'param': 'a,b',
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'expr': ' .word \\a\n .word \\b',
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'read': lambda ctx: ', '.join(barray_to_u32_hex(ctx.data[ctx.ptr+2:ctx.ptr+10]))
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},
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}
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def ExecuteScriptCommandSet(ctx: Context):
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cmd = struct.unpack('H', ctx.data[ctx.ptr:ctx.ptr+2])[0]
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if cmd == 0 or cmd ==0xffff:
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return 0
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unk_06 = cmd >> 0xA
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operationId = cmd & 0x3FF
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#print(cmd)
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#print('advance by', unk_06)
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#print('command id', operationId)
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command = commands[operationId]
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#print(command)
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param_length = unk_06 - 1
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if unk_06 > 1:
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meta = struct.unpack(
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'H'*(unk_06-1), ctx.data[ctx.ptr+2:ctx.ptr+2*unk_06])
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#print('meta', meta)
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# Handle parameters
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if not 'params' in command:
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raise Exception('Parameters not defined for ' + command['fun'] + ' Should be of length ' + str(param_length))
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if not command['params'] in parameters:
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raise Exception('Parameter configuration ' + command['params'] + ' not defined')
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params = parameters[command['params']]
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if unk_06-1 != params['length']:
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raise Exception(f'Call {command["fun"]} with ' + str(unk_06-1) +' length, while length of ' + str(params['length'])+' defined')
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print(command['fun'] + ' ' + params['read'](ctx))
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# Execute script
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ctx.ptr += unk_06*2
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return 1
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def disassemble_script(input_data):
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input_bytes = bytearray.fromhex(input_data)
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ctx = Context(0, input_bytes)
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while True:
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if not ExecuteScriptCommandSet(ctx):
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break
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# Print rest (did not manage to get there)
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print('\n'.join(['.short ' + x for x in barray_to_u16_hex(ctx.data[ctx.ptr:])]))
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def generate_macros():
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print('@ All the macro functions for scripts')
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print('@ Generated by disassemble_script.py')
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print('.macro SCRIPT_START name')
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print(' .globl \\name')
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print(' .section .text')
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print('\\name:')
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print('.endm')
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print('.macro SCRIPT_END')
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print(' .short 0xffff')
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print('.endm')
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print('')
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for num, command in enumerate(commands):
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if not 'params' in command:
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#raise Exception('Parameters not defined for ' + command['fun'] + ' Should be of length ' + str(param_length))
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continue # TODO
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if not command['params'] in parameters:
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raise Exception('Parameter configuration ' + command['params'] + ' not defined')
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params = parameters[command['params']]
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id = ((params['length']+1) << 0xA) + num
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print(f'.macro {command["fun"]} {params["param"]}')
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print(f' .short {u16_to_hex(id)}')
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if params['expr'] != '':
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print(params['expr'])
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print('.endm')
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print('')
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#print('#define ' + command['fun'] + '(' + params['param'] + ') asm(".short '+u16_to_hex(id)+'");' + params['expr'])
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print('')
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def main():
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# Read input
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input_data = input()
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if input_data.strip() == 'macros':
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generate_macros()
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return
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disassemble_script(input_data)
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main() |