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https://gitlab.com/xCrystal/pokecrystal-board.git
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more awful code for the new disassembler
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Bryan Bishop
parent
7dd0c86a6b
commit
4ccfe27e4a
189
extras/romstr.py
189
extras/romstr.py
@ -169,8 +169,193 @@ class Asm:
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maybe_byte = current_byte
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# stuff...
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raise NotImplementedError, "o_______o"
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# check if this byte has a label prior to it
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# and if not, generate a new label
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# This new label might not be used, so it will be
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# removed if the total usage is zero.
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if offset in byte_labels.keys():
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line_label = byte_labels[offset]["name"]
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byte_labels[offset]["usage"] += 1
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else:
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line_label = asm_label(offset)
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byte_labels[offset] = {}
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byte_labels[offset]["name"] = line_label
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byte_labels[offset]["usage"] = 0
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byte_labels[offset]["definition"] = True
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output += .. add label here (well, not really)
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#find out if there's a two byte key like this
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temp_maybe = maybe_byte
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temp_maybe += ( ord(rom[offset+1]) << 8)
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if temp_maybe in opt_table.keys() and ord(rom[offset+1])!=0:
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opstr = opt_table[temp_maybe][0].lower()
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if "x" in opstr:
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for x in range(0, opstr.count("x")):
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insertion = ord(rom[offset + 1])
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insertion = "$" + hex(insertion)[2:]
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opstr = opstr[:opstr.find("x")].lower() + insertion + opstr[opstr.find("x")+1:].lower()
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current_byte += 1
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offset += 1
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if "?" in opstr:
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for y in range(0, opstr.count("?")):
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byte1 = ord(rom[offset + 1])
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byte2 = ord(rom[offset + 2])
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number = byte1
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number += byte2 << 8;
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insertion = "$%.4x" % (number)
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opstr = opstr[:opstr.find("?")].lower() + insertion + opstr[opstr.find("?")+1:].lower()
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current_byte_number += 2
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offset += 2
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output += spacing + opstr #+ " ; " + hex(offset)
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output += "\n"
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current_byte_number += 2
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offset += 2
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elif maybe_byte in opt_table.keys():
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op_code = opt_table[maybe_byte]
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op_code_type = op_code[1]
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op_code_byte = maybe_byte
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#type = -1 when it's the E op
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#if op_code_type != -1:
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if op_code_type == 0 and ord(rom[offset]) == op_code_byte:
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op_str = op_code[0].lower()
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output += spacing + op_code[0].lower() #+ " ; " + hex(offset)
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output += "\n"
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offset += 1
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current_byte_number += 1
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elif op_code_type == 1 and ord(rom[offset]) == op_code_byte:
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oplen = len(op_code[0])
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opstr = copy(op_code[0])
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xes = op_code[0].count("x")
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include_comment = False
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for x in range(0, xes):
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insertion = ord(rom[offset + 1])
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insertion = "$" + hex(insertion)[2:]
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if current_byte == 0x18 or current_byte==0x20 or current_byte in relative_jumps: #jr or jr nz
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#generate a label for the byte we're jumping to
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target_address = offset + 2 + c_int8(ord(rom[offset + 1])).value
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if target_address in byte_labels.keys():
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byte_labels[target_address]["usage"] = 1 + byte_labels[target_address]["usage"]
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line_label2 = byte_labels[target_address]["name"]
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else:
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line_label2 = asm_label(target_address)
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byte_labels[target_address] = {}
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byte_labels[target_address]["name"] = line_label2
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byte_labels[target_address]["usage"] = 1
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byte_labels[target_address]["definition"] = False
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insertion = line_label2.lower()
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include_comment = True
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elif current_byte == 0x3e:
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last_a_address = ord(rom[offset + 1])
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opstr = opstr[:opstr.find("x")].lower() + insertion + opstr[opstr.find("x")+1:].lower()
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output += spacing + opstr
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if include_comment:
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output += " ; " + hex(offset)
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if current_byte in relative_jumps:
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output += " $" + hex(ord(rom[offset + 1]))[2:]
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output += "\n"
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current_byte_number += 1
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offset += 1
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insertion = ""
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current_byte_number += 1
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offset += 1
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include_comment = False
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elif op_code_type == 2 and ord(rom[offset]) == op_code_byte:
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oplen = len(op_code[0])
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opstr = copy(op_code[0])
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qes = op_code[0].count("?")
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for x in range(0, qes):
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byte1 = ord(rom[offset + 1])
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byte2 = ord(rom[offset + 2])
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number = byte1
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number += byte2 << 8;
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insertion = "$%.4x" % (number)
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if maybe_byte in call_commands or current_byte in relative_unconditional_jumps or current_byte in relative_jumps:
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result = find_label(insertion, bank_id)
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if result != None:
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insertion = result
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opstr = opstr[:opstr.find("?")].lower() + insertion + opstr[opstr.find("?")+1:].lower()
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output += spacing + opstr #+ " ; " + hex(offset)
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output += "\n"
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current_byte_number += 2
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offset += 2
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current_byte_number += 1
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offset += 1
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if current_byte == 0x21:
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last_hl_address = byte1 + (byte2 << 8)
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if current_byte == 0xcd:
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if number == 0x3d97: used_3d97 = True
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#duck out if this is jp $24d7
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if current_byte == 0xc3 or current_byte in relative_unconditional_jumps:
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if current_byte == 0xc3:
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if number == 0x3d97: used_3d97 = True
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#if number == 0x24d7: #jp
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if not has_outstanding_labels(byte_labels) or all_outstanding_labels_are_reverse(byte_labels, offset):
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keep_reading = False
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is_data = False
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break
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else:
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is_data = True
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#stop reading at a jump, relative jump or return
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if current_byte in end_08_scripts_with:
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if not has_outstanding_labels(byte_labels) and all_outstanding_labels_are_reverse(byte_labels, offset):
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keep_reading = False
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is_data = False #cleanup
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break
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else:
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is_data = False
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keep_reading = True
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else:
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is_data = False
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keep_reading = True
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else:
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#if is_data and keep_reading:
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output += spacing + "db $" + hex(ord(rom[offset]))[2:] #+ " ; " + hex(offset)
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output += "\n"
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offset += 1
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current_byte_number += 1
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#else the while loop would have spit out the opcode
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#these two are done prior
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#offset += 1
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#current_byte_number += 1
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#clean up unused labels
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for label_line in byte_labels.keys():
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address = label_line
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label_line = byte_labels[label_line]
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if label_line["usage"] == 0:
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output = output.replace((label_line["name"] + "\n").lower(), "")
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#add the offset of the final location
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output += "; " + hex(offset)
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return (output, offset, last_hl_address, last_a_address, used_3d97)
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def __str__(self):
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""" ASM pretty printer.
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