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Merge pull request CTR-tools#14 from mateusfavarin/main
update to redhot main
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| import rabbitizer | ||
| import os | ||
|
|
||
| PSX_RAM_BASE = 0x80010000 | ||
|
|
||
| def get_decompiled_funcs(path: str): | ||
| symbols = {} | ||
| with open(path, "r") as file: | ||
| for line in file: | ||
| line = [l.strip() for l in line.split()] | ||
| if "DECOMP_" not in line[1]: | ||
| continue | ||
| addr = int("0x" + line[0], 16) | ||
| if addr >= PSX_RAM_BASE: | ||
| addr -= PSX_RAM_BASE | ||
| symbol = line[1][7:] | ||
| symbols[symbol] = addr | ||
| return symbols | ||
|
|
||
| def read_symbols(path: str, begin: int, end: int): | ||
| symbols = {} | ||
| symbols_all = {} | ||
| sorted_addr = [] | ||
| if begin >= PSX_RAM_BASE: | ||
| begin -= PSX_RAM_BASE | ||
| if end >= PSX_RAM_BASE: | ||
| end -= PSX_RAM_BASE | ||
| with open(path, "r") as file: | ||
| for line in file: | ||
| line = [l.strip() for l in line.split("=") if l.strip() != ''] | ||
| if len(line) == 0: | ||
| continue | ||
| if len(line) == 2: | ||
| symbol = line[0] | ||
| addr = int(line[1][:-1], 0) | ||
| if addr >= PSX_RAM_BASE: | ||
| addr -= PSX_RAM_BASE | ||
| symbols_all[addr] = symbol | ||
| if addr <= begin or addr >= end: | ||
| continue | ||
| symbols[addr] = symbol | ||
| sorted_addr.append(addr) | ||
| sorted_addr.append(end) | ||
| sorted_addr.sort() | ||
| return symbols, sorted_addr, symbols_all | ||
|
|
||
| def to_le(be: int): | ||
| return ((be & 0xFF) << 24) + (((be >> 8) & 0xFF) << 16) + (((be >> 16) & 0xFF) << 8) + ((be >> 24) & 0xFF) | ||
|
|
||
| buffer = bytearray() | ||
| with open("SCUS_944.26", "rb") as file: | ||
| buffer = file.read()[0x800:] | ||
|
|
||
| rabbitizer.config.toolchainTweaks_treatJAsUnconditionalBranch = True | ||
| rabbitizer.config.misc_expandJalr = True | ||
| rabbitizer.config.misc_opcodeLJust = 1 | ||
|
|
||
| symbols, sorted_addr, symbols_all = read_symbols("gcc-syms926.txt", 0x800100cc, 0x8007170c) | ||
| decomp_funcs = get_decompiled_funcs("redux.map") | ||
|
|
||
| for i in range(len(sorted_addr) - 1): | ||
| func_start = sorted_addr[i] | ||
| func_end = sorted_addr[i + 1] | ||
| func = buffer[func_start : func_end] | ||
| func_name = symbols[func_start] | ||
| if func_name in decomp_funcs: | ||
| continue | ||
|
|
||
| labels = {} | ||
| sorted_labels = [] | ||
| lbl_count = 0 | ||
| for i in range(0, len(func), 4): | ||
| bytecode = (func[i]) + (func[i + 1] << 8) + (func[i + 2] << 16) + (func[i + 3] << 24 ) | ||
| addr = func_start + PSX_RAM_BASE + i | ||
| inst = rabbitizer.Instruction(bytecode, addr, rabbitizer.InstrCategory.R3000GTE) | ||
| if not inst.isFunctionCall() and inst.isJumpWithAddress(): | ||
| jump_addr = inst.getBranchVramGeneric() | ||
| lbl_name = "lbl_" + func_name + "_" + str(lbl_count) | ||
| if jump_addr in symbols_all: | ||
| lbl_name = decomp_funcs[jump_addr] | ||
| if lbl_name in decomp_funcs: | ||
| lbl_name = "DECOMP_" + lbl_name | ||
| sorted_labels.append(lbl_name) | ||
| continue | ||
| labels[jump_addr] = lbl_name | ||
| sorted_labels.append(lbl_name) | ||
| lbl_count += 1 | ||
|
|
||
| jal_errors = {} | ||
| jmp_id = 0 | ||
| warning_func_ptr = False | ||
| function = ".set noreorder\n.align 2\n.global " + func_name + "\n.type " + func_name + ", @function\n\n" + func_name + ":\n" | ||
| for i in range(0, len(func), 4): | ||
| bytecode = (func[i]) + (func[i + 1] << 8) + (func[i + 2] << 16) + (func[i + 3] << 24 ) | ||
| addr = func_start + PSX_RAM_BASE + i | ||
| inst = rabbitizer.Instruction(bytecode, addr, rabbitizer.InstrCategory.R3000GTE) | ||
| if addr in labels: | ||
| function += labels[addr] + ":\n" | ||
| labels.pop(addr) | ||
| disassembled = False | ||
| if inst.isFunctionCall(): | ||
| if inst.isJumpWithAddress(): | ||
| func_addr = inst.getBranchVramGeneric() - PSX_RAM_BASE | ||
| jal_name = str() | ||
| if func_addr in symbols_all: | ||
| jal_name = symbols_all[func_addr] | ||
| if jal_name in decomp_funcs: | ||
| jal_name = "DECOMP_" + jal_name | ||
| function += "\t" + inst.disassemble(jal_name) + "\n" | ||
| else: | ||
| function += "\t" + inst.disassemble("ERROR") + "\n" | ||
| jal_addr = inst.getBranchVramGeneric() | ||
| if jal_addr not in jal_errors: | ||
| jal_errors[jal_addr] = True | ||
| print("ERROR: Function does not exist: " + str(hex(jal_addr))) | ||
| disassembled = True | ||
| else: | ||
| warning_func_ptr = True | ||
| elif inst.isJumpWithAddress(): | ||
| function += "\t" + inst.disassemble(sorted_labels[jmp_id]) + "\n" | ||
| jmp_id += 1 | ||
| disassembled = True | ||
| if not disassembled: | ||
| function += "\t.word " + hex(inst.getRaw()) + "\n" | ||
| if len(labels) > 0: | ||
| print("ERROR: missing labels in " + func_name) | ||
| if warning_func_ptr: | ||
| print("WARNING: " + func_name + " contains function pointer calls") | ||
| with open("src/" + func_name + ".s", "w") as file: | ||
| file.write(function) |