Dark Byte
Site Admin
 Reputation: 458
Joined: 09 May 2003
Posts: 25287
Location: The netherlands
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 Posted: Fri May 17, 2019 2:18 am Post subject: |
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autorunfolder should work (just name it something.lua)
| Code: |
registerCustomTypeAutoAssembler(
[[
alloc(ConvertRoutine,1024)
alloc(ConvertBackRoutine,1024)
alloc(TypeName,256)
alloc(ByteSize,4)
alloc(UsesFloat,1)
alloc(CallMethod,1)
alloc(PREFEREDALIGNMENT,1)
TypeName:
db '3 byte integer',0
ByteSize:
dd 3
PREFEREDALIGNMENT:
db 1
UsesFloat:
db 0 //Change to 1 if this custom type should be treated as a float
CallMethod:
db 1 //Remove or change to 0 for legacy call mechanism
//The convert routine should hold a routine that converts the data to an integer (in eax)
//function declared as: cdecl int ConvertRoutine(unsigned char *input, PTR_UINT address);
//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
//rdx=address
mov eax,[rcx] //eax now contains the bytes 'input' pointed to
and eax,00ffffff //strip off bit 24 to 31
ret
[/64-bit]
[32-bit]
//jmp dllname.functionname
//or manual:
//parameters: (32-bit)
push ebp
mov ebp,esp
//[ebp+8]=address of input
//[ebp+c]=address
//example:
mov eax,[ebp+8] //place the address that contains the bytes into eax
mov eax,[eax] //place the bytes into eax so it's handled as a normal 4 byte value
and eax,00ffffff //strip off bit 24 to 31
pop ebp
ret
[/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: cdecl void ConvertBackRoutine(int i, PTR_UINT address, unsigned char *output);
ConvertBackRoutine:
//jmp dllname.functionname
//or manual:
[64-bit]
//parameters: (64-bit)
//ecx=input
//rdx=address
//r8=address of output
//example:
mov [r8],cx //first 16 bits
shr ecx,#16 //move the upper 16 bits of ecx to the lower
mov [r8+2],cl //this results in bits 16 to 23 to be written to r8+2
ret
[/64-bit]
[32-bit]
//parameters: (32-bit)
push ebp
mov ebp,esp
//[ebp+8]=input
//[ebp+c]=address
//[ebp+10]=address of output
//example:
push eax
push ebx
mov eax,[ebp+8] //load the value into eax
mov ebx,[ebp+10] //load the output address into ebx
mov word [ebx],ax
shr eax,#16
mov [ebx+2],al
pop ebx
pop eax
pop ebp
ret
[/32-bit]
]])
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