[JuarezPL]

Hi guys.
How I can create new opcode without cleo 4 functions?

[Deji]

Learn ASM and, optionally C++ or another programming language and learn to use IDA (The Interactive Dissasembler) to see how R* did it.

[fastman92]

Download In-game Timecyc Editor or my Car spawner 2.1 and see how i created 2 new opcodes.
003D: is_zero 5@
003E: overwrite_camera_state 2
I included original source of these opcodes made as a CLEO script.

This post has been edited by fastman92: Feb 1 2012, 09:25 PM

[JuarezPL]

I need to create opcode Test_Cheat, but I don't know how I can write it in c++

[Swoorup]

Guys, Correct me if I am wrong.

But should we hook it to ProcessOneCommand function. Anything is necessary other than that?
From what I have understood simply analyzing the binary The function just checks for opcode's ID and passes them to the necessary functions that carry out the opcodes actual function

[fastman92]

SANNY

:TestCheatString
{
Description:
    Compares typed string against passed string
Type: IF

Dependencies:
  - Detect_EXE_version.txt

Parameters:
   Passed:
     0@ - 1th part of cheat string
     1@ - 2nd part of cheat sting
       2@ - 3th optional part of cheat string
       3@ - 4th optional part of cheat string
      
      (0@v together)  
   Result:
     none
       Returns true or false.

Example:
  06D2: 28@v = "TEST" // @v = string                                                                                                    
  0AB1: call_scm_func @TestCheatString 4 STRING 28@ 29@ 30@ 31@
}
{   ///////////////
0@v - cheat string to check
4@v - copied cheat string
8@ - static adress of _cheatString
9@ - ending of merged _cheatString: _cheatString + strlen(0@v) - 1    
10@ - adress of _gtaStrlen / read character from _cheatString
11@ - adress of 4@v, increased dynamically
    \\\\\\\\\\\\\\\
}
8@ = 0x969110

0A9F: 9@ = current_thread_pointer
0A8E: 11@ = 9@ + 76 // int
9@ += 60

0AA7: call_function 0x0069DB50 num_params 1 pop 1 get_string 9@ length_to 9@

005A: 9@ += 8@  // (int)
9@ -= 1

    while 002D:   9@ >= 8@  // (int)
    0A8D: 10@ = read_memory 9@ size 1 virtual_protect 0
    0A8C: write_memory 11@ size 1 value 10@ virtual_protect 0

    9@ -= 1
    11@ += 1
    end
    
0A8C: write_memory 11@ size 1 value 0x00 virtual_protect 0  // NULL termination        

if
08F9:   0@v == 4@v
else_jump @TestCheatString_return_false      
0A8C: write_memory 8@ size 1 value 0x00 virtual_protect false  // NULL termination    
0485: return_true
0AB2: ret 0
    
:TestCheatString_return_false
059A: return_false
0AB2: ret 0

I have it compatible with gta_sa 1.01, but this version which i share here is not.
It`s compatible with CLEO3 and newer.

How to use:

CODE

if
0AB1: call_scm_func @TestCheatString 2 STRING 0x454D4954 0x435943   // TIMECYC

CODE

if
0AB1: call_scm_func @TestCheatString 3 STRING 0x4a554843 0x5a455241 0x0      // CHUJAREZ

Use capital letters.
http://home.paulschou.net/tools/xlate/

This post has been edited by fastman92: Apr 4 2012, 06:51 PM

[JuarezPL]

CHUJAREZ

O.o

Thanks bro.