diff options
Diffstat (limited to 'resources/bios_extract/patches/0001-dell_inspiron_1100_unpacker-Fix-minor-style-issues.patch')
-rw-r--r-- | resources/bios_extract/patches/0001-dell_inspiron_1100_unpacker-Fix-minor-style-issues.patch | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/resources/bios_extract/patches/0001-dell_inspiron_1100_unpacker-Fix-minor-style-issues.patch b/resources/bios_extract/patches/0001-dell_inspiron_1100_unpacker-Fix-minor-style-issues.patch new file mode 100644 index 00000000..e00379bf --- /dev/null +++ b/resources/bios_extract/patches/0001-dell_inspiron_1100_unpacker-Fix-minor-style-issues.patch @@ -0,0 +1,132 @@ +From d187ceefacc4909c4a3fdb8098878cb9bcd2c198 Mon Sep 17 00:00:00 2001 +From: Nicholas Chin <nic.c3.14@gmail.com> +Date: Fri, 5 May 2023 19:34:29 -0600 +Subject: [PATCH 1/3] dell_inspiron_1100_unpacker: Fix minor style issues + +- Make indent width consistent +- Use spaces around -= operator +- Rename variable type to type_id to avoid shadowing the type method, + though that method isn't ever used in this program + +Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com> +Change-Id: I2d47501845591e228b6c5d61c36ca2edce91d36a +--- + dell_inspiron_1100_unpacker.py | 84 +++++++++++++++++----------------- + 1 file changed, 42 insertions(+), 42 deletions(-) + +diff --git a/dell_inspiron_1100_unpacker.py b/dell_inspiron_1100_unpacker.py +index 3d5adf5..b12059b 100755 +--- a/dell_inspiron_1100_unpacker.py ++++ b/dell_inspiron_1100_unpacker.py +@@ -19,7 +19,7 @@ def memcpy(arr1, off1, arr2, off2, count): + raise Exception("Trying to write out of bounds") + off1 += 1 + off2 += 1 +- count -=1 ++ count -= 1 + + # looks like some lzss variation + def dell_unpack(indata): +@@ -64,58 +64,58 @@ def dell_unpack(indata): + return dst.tostring() + + mod_types = { +- 0x01: "Main ROM", +- 0x0C: "Microcode update", ++ 0x01: "Main ROM", ++ 0x0C: "Microcode update", + } + + print "Dell/Phoenix ROM BIOS PLUS unpacker" + if len(sys.argv) < 2: +- print "Usage: dell_unpack.py bios.bin [offset]" +- sys.exit(1) ++ print "Usage: dell_unpack.py bios.bin [offset]" ++ sys.exit(1) + fname = sys.argv[1] + offs = 0 + f = open(fname, "rb").read() + if len(sys.argv) > 2: +- offs = int(sys.argv[2], 16) ++ offs = int(sys.argv[2], 16) + else: +- offs = f.find("\xF0\x00Copyright 1985-\x02\x04\xF0\x0F8 Phoenix Technologies Ltd.") +- if offs == -1: +- print "Does not look like a Dell/Phoenix ROM BIOS PLUS" +- sys.exit(2) +- if f[offs-5] == '\x01': +- hlen = 5 # 32-bit length +- offs -= 5 +- fmt = "<BI" +- elif f[offs-3] == '\x01': +- hlen = 3 # 16-bit length +- offs -= 3 +- fmt = "<BH" +- else: +- print "Unhandled format!" +- sys.exit(1) +- print "Found compressed module at %08X" % offs ++ offs = f.find("\xF0\x00Copyright 1985-\x02\x04\xF0\x0F8 Phoenix Technologies Ltd.") ++ if offs == -1: ++ print "Does not look like a Dell/Phoenix ROM BIOS PLUS" ++ sys.exit(2) ++ if f[offs-5] == '\x01': ++ hlen = 5 # 32-bit length ++ offs -= 5 ++ fmt = "<BI" ++ elif f[offs-3] == '\x01': ++ hlen = 3 # 16-bit length ++ offs -= 3 ++ fmt = "<BH" ++ else: ++ print "Unhandled format!" ++ sys.exit(1) ++ print "Found compressed module at %08X" % offs + if offs > 0: + fn = "EC.bin" + print "%08X EC code, %08X %s" % (0, offs, fn) + open(fn, "wb").write(f[:offs]) + while True: +- type, leng = struct.unpack(fmt, f[offs:offs+hlen]) +- print "%08X type %02X" % (offs, type), +- offs += hlen +- if type == 0xFF: +- print "<end of chain>" +- break +- data = f[offs:offs+leng] +- offs += leng +- if type != 0xC: +- odata = dell_unpack(data) +- else: +- odata = data +- print " %08X -> %08X" % (leng, len(odata)), +- fn = "mod_%02X.bin" % type +- print " %s" % fn, +- if type in mod_types: +- print "(%s)" % mod_types[type] +- else: +- print "" +- open(fn, "wb").write(odata) ++ type_id, leng = struct.unpack(fmt, f[offs:offs+hlen]) ++ print "%08X type %02X" % (offs, type_id), ++ offs += hlen ++ if type_id == 0xFF: ++ print "<end of chain>" ++ break ++ data = f[offs:offs+leng] ++ offs += leng ++ if type_id != 0xC: ++ odata = dell_unpack(data) ++ else: ++ odata = data ++ print " %08X -> %08X" % (leng, len(odata)), ++ fn = "mod_%02X.bin" % type_id ++ print " %s" % fn, ++ if type_id in mod_types: ++ print "(%s)" % mod_types[type_id] ++ else: ++ print "" ++ open(fn, "wb").write(odata) +-- +2.40.1 + |