Cheat Engine

[acgofficial]

I have to call instructions thoroughly disappointed.
I don't know how to write code into the "CALL"

I use the debug. Exe software to test whether the CALL instruction code is correct.
In the CALL CALL label instructions, before that I use PUSH instruction incoming parameters.
CALL it a RET instruction, POP instructions executed outside, after the end of the process execution code, found no problem.

Then I changed another way of thinking, will PUSH and POP instructions are commented out, CALL CALL label instructions, found no problem.

I completely don't understand why use CheatEngine CALL CALL label instructions will the game crash.

File.asm<My code is like this:

//1
Main:
mov dx,9
mov bx,4
push dx
push bx
call CallCode
mov cx,ax
;pop dxss
;pop bx
mov ax,4c00h
int 21h

CallCode:
mov ax,dx
sub ax,bx
ret

//2
Main:
mov dx,9
mov bx,4
push dx
push bx
call CallCode
mov cx,ax
pop dx
pop bx
mov ax,4c00h
int 21h

CallCode:
mov ax,dx
sub ax,bx
ret



They are the result of the values are the same, but will not collapse, I CALL instructions more and more difficult to understand its meaning.
help me..

CE the CEAA Script，I Post Png..Look...

[OldCheatEngineUser]

you cant use interrupts while in usermode.

[acgofficial]

[OldCheatEngineUser]

nothing special, call label .. do stuff and ret.

[acgofficial]

[Dark Byte]

Before you can call .net code you first need to attach the thread to the .net runtime so it's thread local storage (TLS) gets initialized properly.

I currently am not sure how to do that in .net (though there are some exports that can help I bet)
What you can do is do some code injection in a spot you know is executed often and call your code there

[acgofficial]

[OldCheatEngineUser]

it seems you dont understand assembly in general, try to find a good learning source.