-
Notifications
You must be signed in to change notification settings - Fork 4
/
GBA_Loader.py
200 lines (184 loc) · 8.31 KB
/
GBA_Loader.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
'''
Thank's to SiD3W4y/GhidraGBA and LIJI32/gameboy.py
@thorodin-roth
Ported to IDA 7.7 by laqieer
'''
import idaapi
import ida_idp
import idc
import struct
import ida_funcs
import ida_bytes
import ida_lines
ROM_SIGNATURE_OFFSET = 0xb2
ROM_SIGNATURE = b"\x96"
Nintendo_ROM_SIGNATURE_OFFSET = 4
Nintendo_ROM_SIGNATURE = b"\x24\xFF\xAE\x51"
RomFormatName = "Game Boy Advance ROM: ARM7TDMI"
SIZE_HEADER = 0xC0
ROM_SIZE = 0x01000000
ROM_START = 0x08000000
EntryPoint = 0x8000000
def accept_file(li, filename):
li.seek(Nintendo_ROM_SIGNATURE_OFFSET)
if li.read(4) != Nintendo_ROM_SIGNATURE:
return 0
li.seek(ROM_SIGNATURE_OFFSET)
if li.read(1) != ROM_SIGNATURE:
return 0
return {'format': RomFormatName, 'processor':'arm'}
def create_data_labled(ea,name, item_size):
if item_size == 4:
item_type = ida_bytes.FF_DWORD
elif item_size == 8:
item_type = ida_bytes.FF_QWORD
elif item_size == 2:
item_type = ida_bytes.FF_WORD
else:
raise ValueError("Invalid item size")
ida_bytes.create_data(ea, item_type, item_size, idaapi.BADADDR)
idc.set_name(ea, name, idc.SN_NOCHECK | idc.SN_NOWARN)
def add_seg(startea, size, name,bitness=0,seg_cls="CONST",base=0,patch_bytes=None):
s = idaapi.segment_t()
s.start_ea = startea
s.end_ea = startea + size
s.sel = idaapi.setup_selector(base * 0x1000)
s.bitness = bitness
s.align = idaapi.saRelPara
s.comb = idaapi.scPub
s.type = idaapi.SEG_DATA if seg_cls == "CONST" else idaapi.SEG_CODE
s.perm = idaapi.SEGPERM_EXEC | idaapi.SEGPERM_WRITE | idaapi.SEGPERM_READ if seg_cls != "CODE" else 0
idaapi.add_segm_ex(s, name, seg_cls, idaapi.ADDSEG_NOSREG|idaapi.ADDSEG_OR_DIE)
if patch_bytes != None :
for i in range(0,size):
ida_bytes.patch_byte(startea + i,patch_bytes)
def load_file(li, neflags, format):
if format != RomFormatName:
Warning("Unkown format name: '%s'" % format)
return 0
size = li.size()
idaapi.set_processor_type("arm", idaapi.SETPROC_LOADER |ida_idp.SETPROC_LOADER_NON_FATAL|ida_idp.SETPROC_LOADER)
idaapi.set_target_assembler(1)
entry_form_ea,entry_to_ea = (EntryPoint,EntryPoint + size)
try:
add_seg(0x0000000, 0x4000,"BIOS",seg_cls="CODE",bitness=1,patch_bytes=0)
add_seg(0x2000000, 0x40000,"WRAM",patch_bytes=0)
add_seg(0x3000000, 0x08000,"IRAM",bitness=1,patch_bytes=0)
add_seg(0x4000000, 0x00400,"IO",bitness=1,patch_bytes=0)
add_seg(0x5000000, 0x00400,"OBJ",patch_bytes=0)
add_seg(0x6000000, 0x18000,"VRAM",patch_bytes=0)
add_seg(0x7000000, 0x00400,"OAM",bitness=1,patch_bytes=0)
add_seg(0x8000000, 0x2000000,"ROM",bitness=1,seg_cls="CODE")
#init Entry point
li.file2base(0, entry_form_ea, entry_to_ea, 1)
ida_funcs.add_func(entry_form_ea)
idaapi.add_entry(EntryPoint, EntryPoint, "start", 1)
idaapi.cvar.inf.startIP = EntryPoint
idaapi.cvar.inf.beginEA = EntryPoint
ida_lines.add_extra_cmt(ROM_START, True, "ROM HEADER")
create_data_labled(0x4000000, "DISPCNT",2)
create_data_labled(0x4000004, "DISPSTAT",2)
create_data_labled(0x4000006, "VCOUNT",2)
create_data_labled(0x4000008, "BG0CNT",2)
create_data_labled(0x400000A, "BG1CNT",2)
create_data_labled(0x400000C, "BG2CNT",2)
create_data_labled(0x400000E, "BG3CNT",2)
create_data_labled(0x4000010, "BG0HOFS",2)
create_data_labled(0x4000012, "BG0VOFS",2)
create_data_labled(0x4000014, "BG1HOFS",2)
create_data_labled(0x4000016, "BG1VOFS",2)
create_data_labled(0x4000018, "BG2HOFS",2)
create_data_labled(0x400001A, "BG2VOFS",2)
create_data_labled(0x400001C, "BG3HOFS",2)
create_data_labled(0x400001E, "BG3VOFS",2)
create_data_labled(0x4000020, "BG2PA",2)
create_data_labled(0x4000022, "BG2PB",2)
create_data_labled(0x4000024, "BG2PC",2)
create_data_labled(0x4000026, "BG2PD",2)
create_data_labled(0x4000028, "BG2X",4)
create_data_labled(0x400002C, "BG2Y",4)
create_data_labled(0x4000030, "BG3PA",2)
create_data_labled(0x4000032, "BG3PB",2)
create_data_labled(0x4000034, "BG3PC",2)
create_data_labled(0x4000036, "BG3PD",2)
create_data_labled(0x4000038, "BG3X",4)
create_data_labled(0x400003C, "BG3Y",4)
create_data_labled(0x4000040, "WIN0H",2)
create_data_labled(0x4000042, "WIN1H",2)
create_data_labled(0x4000044, "WIN0V",2)
create_data_labled(0x4000046, "WIN1V",2)
create_data_labled(0x4000048, "WININ",2)
create_data_labled(0x400004A, "WINOUT",2)
create_data_labled(0x400004C, "MOSAIC",2)
create_data_labled(0x4000050, "BLDCNT",2)
create_data_labled(0x4000052, "BLDALPHA",2)
create_data_labled(0x4000054, "BLDY",2)
create_data_labled(0x4000060, "SOUND1CNT_L",2)
create_data_labled(0x4000062, "SOUND1CNT_H",2)
create_data_labled(0x4000064, "SOUND1CNT_X",2)
create_data_labled(0x4000068, "SOUND2CNT_L",2)
create_data_labled(0x400006C, "SOUND2CNT_H",2)
create_data_labled(0x4000070, "SOUND3CNT_L",2)
create_data_labled(0x4000072, "SOUND3CNT_H",2)
create_data_labled(0x4000074, "SOUND3CNT_X",2)
create_data_labled(0x4000078, "SOUND4CNT_L",2)
create_data_labled(0x400007C, "SOUND4CNT_H",2)
create_data_labled(0x4000080, "SOUNDCNT_L",2)
create_data_labled(0x4000082, "SOUNDCNT_H",2)
create_data_labled(0x4000084, "SOUNDCNT_X",2)
create_data_labled(0x4000088, "SOUNDBIAS",2)
create_data_labled(0x4000090, "WAVE_RAM",2)
create_data_labled(0x40000A0, "FIFO_A",2)
create_data_labled(0x40000A4, "FIFO_B",2)
create_data_labled(0x40000B0, "DMA0SAD",4)
create_data_labled(0x40000B4, "DMA0DAD",4)
create_data_labled(0x40000B8, "DMA0CNT_L",2)
create_data_labled(0x40000BA, "DMA0CNT_H",2)
create_data_labled(0x40000BC, "DMA1SAD",4)
create_data_labled(0x40000C0, "DMA1DAD",4)
create_data_labled(0x40000C4, "DMA1CNT_L",2)
create_data_labled(0x40000C6, "DMA1CNT_H",2)
create_data_labled(0x40000C8, "DMA2SAD",4)
create_data_labled(0x40000CC, "DMA2DAD",4)
create_data_labled(0x40000D0, "DMA2CNT_L",2)
create_data_labled(0x40000D2, "DMA2CNT_H",2)
create_data_labled(0x40000D4, "DMA3SAD",4)
create_data_labled(0x40000D8, "DMA3DAD",4)
create_data_labled(0x40000DC, "DMA3CNT_L",2)
create_data_labled(0x40000DE, "DMA3CNT_H",2)
create_data_labled(0x4000100, "TM0CNT_L",2)
create_data_labled(0x4000102, "TM0CNT_H",2)
create_data_labled(0x4000104, "TM1CNT_L",2)
create_data_labled(0x4000106, "TM1CNT_H",2)
create_data_labled(0x4000108, "TM2CNT_L",2)
create_data_labled(0x400010A, "TM2CNT_H",2)
create_data_labled(0x400010C, "TM3CNT_L",2)
create_data_labled(0x400010E, "TM3CNT_H",2)
create_data_labled(0x4000120, "SIODATA32",4)
create_data_labled(0x4000120, "SIOMULTI0",2)
create_data_labled(0x4000122, "SIOMULTI1",2)
create_data_labled(0x4000124, "SIOMULTI2",2)
create_data_labled(0x4000126, "SIOMULTI3",2)
create_data_labled(0x4000128, "SIOCNT",2)
create_data_labled(0x400012A, "SIOMLT_SEND",2)
create_data_labled(0x400012A, "SIODATA8",2)
create_data_labled(0x4000130, "KEYINPUT",2)
create_data_labled(0x4000132, "KEYCNT",2)
create_data_labled(0x4000200, "IE",2)
create_data_labled(0x4000202, "IF",2)
create_data_labled(0x4000204, "WAITCNT",2)
create_data_labled(0x4000208, "IME",2)
create_data_labled(0x4000300, "POSTFLG",2)
create_data_labled(0x4000301, "HALTCNT",2)
create_data_labled(0x4000134, "RCNT",2)
create_data_labled(0x4000136, "IR",2)
create_data_labled(0x4000140, "JOYCNT",2)
create_data_labled(0x4000150, "JOY_RECV",4)
create_data_labled(0x4000154, "JOY_TRANS",4)
create_data_labled(0x4000158, "JOYSTAT",2)
idc.set_name(0x08000004, "rom_header", idc.SN_NOCHECK)
idc.set_name(0x080000C0, "init_vector", idc.SN_NOCHECK)
print("Your Game Boy Advance Loaded OK")
return 1
except Exception as e:
print(e)