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examples
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# Copyright (c) 2015-2026 Vector 35 Inc
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
# from binaryninja import *
from
binaryninja
.
binaryview
import
BinaryView
from
binaryninja
.
architecture
import
Architecture
from
binaryninja
.
enums
import
SegmentFlag
from
binaryninja
.
log
import
log_error
import
struct
import
traceback
def
crc16
(
data
):
crc
=
0xffff
for
ch
in
data
:
crc
^=
ord
(
ch
)
for
bit
in
range
(
0
,
8
):
if
(
crc
&
1
)
==
1
:
crc
=
(
crc
>>
1
)
^
0xa001
else
:
crc
>>=
1
return
crc
class
DSView
(
BinaryView
):
def
__init__
(
self
,
data
):
BinaryView
.
__init__
(
self
,
file_metadata
=
data
.
file
,
parent_view
=
data
)
self
.
raw
=
data
@
staticmethod
def
is_valid_for_data
(
data
):
hdr
=
data
.
read
(
0
,
0x160
)
if
len
(
hdr
)
<
0x160
:
return
False
if
struct
.
unpack
(
"<H"
,
hdr
[
0x15e
:
0x160
])[
0
]
!=
crc16
(
hdr
[
0
:
0x15e
]):
return
False
if
struct
.
unpack
(
"<H"
,
hdr
[
0x15c
:
0x15e
])[
0
]
!=
crc16
(
hdr
[
0xc0
:
0x15c
]):
return
False
return
True
def
init_common
(
self
):
self
.
platform
=
Architecture
[
"armv7"
].
standalone_platform
# type: ignore
self
.
hdr
=
self
.
raw
.
read
(
0
,
0x160
)
def
init_arm9
(
self
):
try
:
self
.
init_common
()
self
.
arm9_offset
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x20
:
0x24
])[
0
]
self
.
arm_entry_addr
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x24
:
0x28
])[
0
]
self
.
arm9_load_addr
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x28
:
0x2C
])[
0
]
self
.
arm9_size
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x2C
:
0x30
])[
0
]
self
.
add_auto_segment
(
self
.
arm9_load_addr
,
self
.
arm9_size
,
self
.
arm9_offset
,
self
.
arm9_size
,
SegmentFlag
.
SegmentReadable
|
SegmentFlag
.
SegmentExecutable
)
self
.
add_entry_point
(
Architecture
[
'armv7'
].
standalone_platform
,
self
.
arm_entry_addr
)
# type: ignore
return
True
except
Exception
:
log_error
(
traceback
.
format_exc
())
return
False
def
init_arm7
(
self
):
try
:
self
.
init_common
()
self
.
arm7_offset
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x30
:
0x34
])[
0
]
self
.
arm_entry_addr
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x34
:
0x38
])[
0
]
self
.
arm7_load_addr
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x38
:
0x3C
])[
0
]
self
.
arm7_size
=
struct
.
unpack
(
"<L"
,
self
.
hdr
[
0x3C
:
0x40
])[
0
]
self
.
add_auto_segment
(
self
.
arm7_load_addr
,
self
.
arm7_size
,
self
.
arm7_offset
,
self
.
arm7_size
,
SegmentFlag
.
SegmentReadable
|
SegmentFlag
.
SegmentExecutable
)
self
.
add_entry_point
(
Architecture
[
'armv7'
].
standalone_platform
,
self
.
arm_entry_addr
)
# type: ignore
return
True
except
Exception
:
log_error
(
traceback
.
format_exc
())
return
False
def
perform_is_executable
(
self
):
return
True
def
perform_get_entry_point
(
self
):
return
self
.
arm_entry_addr
class
DSARM9View
(
DSView
):
name
=
"DSARM9"
long_name
=
"DS ARM9 ROM"
def
init
(
self
):
return
self
.
init_arm9
()
class
DSARM7View
(
DSView
):
name
=
"DSARM7"
long_name
=
"DS ARM7 ROM"
def
init
(
self
):
return
self
.
init_arm7
()
DSARM9View
.
register
()
DSARM7View
.
register
()
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