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Drivium
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Joined: 16 Apr 2013
Posts: 97
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 Posted: Mon Feb 17, 2020 10:26 pm Post subject: Cheat Engine 7.0 Question - 2 & 4 Byte Big Endian |
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Does 7.0 come with this by default? I had manually added these in a previous version and when I installed the new version, it had it. I even selected "reset settings" when installing. If it carries over from another version, where is that info stored so I can delete it?
I'm trying to help a user who's installed Cheat Engine 7.0 for the first time ever. They can't run a script I made because it's lua and it's getting an error. I'm thinking I can just package my own copy of CE up that already has the 2 & 4 byte types included, but I don't know if this data is stored within the CE run dir itself or not.
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Dark Byte
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Location: The netherlands
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| Posted: Tue Feb 18, 2020 5:10 am Post subject: |
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it's stored in the registry
in the start menu under Cheat Engine execute "reset settings" to remove custom types as well (install will leave them intact but manually resetting will delete these)
you can package the custom types with CE inside tables as well using registerCustomTypeAutoAssembler([[codeforbigendian]])
it will be forgotten when ce restarts
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Drivium
Advanced Cheater
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Joined: 16 Apr 2013
Posts: 97
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| Posted: Tue Feb 18, 2020 9:04 am Post subject: |
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| Quote: | you can package the custom types with CE inside tables as well using registerCustomTypeAutoAssembler([[codeforbigendian]])
it will be forgotten when ce restarts |
This sounds exactly like what I need to do. How would that look exactly? Do I manually edit the .ct file and drop this in or do I open an auto assembly window and paste it in there then add it to the cheat table as a line? Do I need to activate it?
Obviously, I'd prefer to package it the way you suggested, but I did find this also: https://github.com/FreeER/Cheat-Engine-Custom-Types. Would running one of these .reg files from @FreeER work also?
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Dark Byte
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Joined: 09 May 2003
Posts: 25779
Location: The netherlands
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| Posted: Wed Feb 19, 2020 8:59 am Post subject: |
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example for big endian 2 byte:
| Code: |
registerCustomTypeAutoAssembler([[
alloc(TypeName,256)
alloc(ByteSize,4)
alloc(ConvertRoutine,1024)
alloc(ConvertBackRoutine,1024)
TypeName:
db '2 Byte Big Endian',0
ByteSize:
dd 2
//The convert routine should hold a routine that converts the data to an integer (in eax)
//function declared as: stdcall int ConvertRoutine(unsigned char *input);
//Note: Keep in mind that this routine can be called by multiple threads at the same time.
ConvertRoutine:
//jmp dllname.functionname
[64-bit]
//or manual:
//parameters: (64-bit)
//rcx=address of input
xor eax,eax
mov ax,[rcx] //eax now contains the bytes 'input' pointed to
xchg ah,al //convert to big endian
ret
[/64-bit]
[32-bit]
//jmp dllname.functionname
//or manual:
//parameters: (32-bit)
push ebp
mov ebp,esp
//[ebp+8]=input
//example:
mov eax,[ebp+8] //place the address that contains the bytes into eax
mov ax,[eax] //place the bytes into eax so it's handled as a normal 4 byte value
and eax,ffff //cleanup
xchg ah,al //convert to big endian
pop ebp
ret 4
[/32-bit]
//The convert back routine should hold a routine that converts the given integer back to a row of bytes (e.g when the user wats to write a new value)
//function declared as: stdcall void ConvertBackRoutine(int i, unsigned char *output);
ConvertBackRoutine:
//jmp dllname.functionname
//or manual:
[64-bit]
//parameters: (64-bit)
//ecx=input
//rdx=address of output
//example:
xchg ch,cl //convert the little endian input into a big endian input
mov [rdx],cx //place the integer the 4 bytes pointed to by rdx
ret
[/64-bit]
[32-bit]
//parameters: (32-bit)
push ebp
mov ebp,esp
//[ebp+8]=input
//[ebp+c]=address of output
//example:
push eax
push ebx
mov eax,[ebp+8] //load the value into eax
mov ebx,[ebp+c] //load the address into ebx
//convert the value to big endian
xchg ah,al
mov [ebx],ax //write the value into the address
pop ebx
pop eax
pop ebp
ret 8
[/32-bit]
]])
and running those .reg files might also work.
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ParkourPenguin
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Joined: 06 Jul 2014
Posts: 4695
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| Posted: Wed Feb 19, 2020 10:32 am Post subject: |
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In case you don't know, registerCustomTypeAutoAssembler is Lua code: copy/paste it into the Lua script of the cheat table. (main window -> table -> show cheat table Lua script)
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