China DOS Union

I have a file where each line is in this format.
0000: 0xA0090590 ; 0: void loopback0()
Convert all to:
0000: 00000000 900509A0 ; 0: void loopback0()

If a line is in this format.
If there is a semicolon comment at the beginning, do not process it.
;wxyz: 0xA0DDEEFF ; x: void func()

The LZ should post several more lines and explain which parts are fixed and which parts are variable.

0000: 00000000 F50A96A0   ;   0: void loopback0()

0004: 00000000 F50A96A0   ;   1: void loopback1()

......

;0D4:              ;  35: AlarmClockRing

0B78: 00000000 F50A96A0   ; 2DE: __thumb void IllumTimeRequest(int TimeMode, int Counter);

[ Last edited by loquat on 2010-4-30 at 16:11 ]

Originally posted by Hanyeguxing at 2010-4-30 15:09:
The poster should post more lines and explain which part is fixed and which part is changing.

- -Requires uploading sample text.

Upload after eating.
This is the file...

The requirement is to add 00000000 to the middle part, and then invert every two digits...

[ Last edited by loquat on 2010-4-30 at 18:50 ]

Originally posted by loquat at 2010-4-30 13:49:
I have a file where each line is in the following format.
0000: 0xA0090590 ; 0: void loopback0()
Need to change all to:
0000: 00000000 900509A0 ; 0: void loopback0()

If there is ...

1010 0000 0000 1001 0000 0101 1001 0000

1001 0000 0000 0101 0000 1001 1010 0000

Inverse every two bits ;) The building owner still uses VBS, js, or C......
P handles bit operations, (check bit operations in set /?), which is not simple...

VBS can also be used. Who will help write one? I don't want to do this P processing, but use this file to import into IDA to learn things...

He said that two-digit bitwise NOT operation turns the address format ABCD into DCBA (where A, B, C, D are all two digits).

0000: 0xA0090590
0000: 00000000 900509A0

My double - bit inversion should be ABCD <-> CDAB

- -Hey
fr -ric:"(ab)(cd)" -t:"\2\1"
This can achieve the swap.

fr -ric:"(ab)(cd)" -t:"000000 \2\1"
Add zeros at the front

[ Last edited by yishanju on 2010-4-30 at 19:54 ]

```@echo off&setlocal enabledelayedexpansion
(for /F "eol=# delims=" %%a in (a.txt) do set a=%%a&if "!a:~0,1!"==";" (echo.%%a) else for /F "tokens=1,2* delims=:;" %%b in ("%%a") do set c=%%c&echo.%%b: 00000000 !c:~9^,2!!c:~7^,2!!c:~5^,2!!c:~3^,2! ;%%d)>b.txt```

Forgot to pad with leading zeros, add ;)

sed -e "/^/s/0x\(..\)\(..\)\(..\)\(..\)/00000000 0x\3\4\1\2/" testfile.txt

[ Last edited by freeants001 on 2010-4-30 at 20:35 ]