Problem with assembly programming and Procedure calls

Question

I am using MASM to do some assembly programming. When I try to run my program it crashes immediately when it encounters "call myFunction", even after I've stripped out all the code from the procedure. Here is my code any help would be greatly appreciated.

    .486
    .model flat
    .stack 100h

    ExitProcess PROTO NEAR32 stdcall, dExitCode:DWORD

    .code
_start:

    call myFunction

    INVOKE ExitProcess,0
    PUBLIC _start

myFunction  proc  near32


myFunction  endp

END

Can you provide more complex example of your code?

Eugene Burtsev
– Eugene Burtsev

2011-03-25 16:12:38 +00:00
Commented Mar 25, 2011 at 16:12 — Eugene Burtsev
– Eugene Burtsev, Commented Mar 25, 2011 at 16:12
Sorry Eugene but even code this simple crashes on me.

Maness
– Maness

2011-03-25 16:45:41 +00:00
Commented Mar 25, 2011 at 16:45 — Maness
– Maness, Commented Mar 25, 2011 at 16:45

wallyk · Accepted Answer · 2011-03-25 16:37:46Z

6

Change myFunction to

myFunction  proc  near32
     ret
myFunction  endp

to make it a stub. In your version, it has no instructions, so it executes whatever follows it in memory.

answered Mar 25, 2011 at 16:37

wallyk

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