Translation MASM to FASM problem

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Carlito

Joined: 08 Apr 2004
Posts: 11
Location: Paris

Carlito

Hi everybody, I'm having problems turning this instruction to fasm :

mov eax, fs:[30h] <- which is masm.

So, if someone's got an idea, please help me.
Many thanks.

18 Apr 2004, 19:31

decard

Joined: 11 Sep 2003
Posts: 1092
Location: Poland

decard

try this:

Code:

mov eax, [fs:30h]

18 Apr 2004, 19:57

Carlito

Joined: 08 Apr 2004
Posts: 11
Location: Paris

Carlito

k gonna try thx man

18 Apr 2004, 20:00

Carlito

Joined: 08 Apr 2004
Posts: 11
Location: Paris

Carlito

It WORKS, many thanks decard

18 Apr 2004, 20:08

Carlito

Joined: 08 Apr 2004
Posts: 11
Location: Paris

Carlito

But This part of my code for the program not to be debug-able make it crash on win2000 stations, on XP it works fine

Code:

     push    00h
 mov eax, [fs:30h]
       movzx   eax, byte [eax+2h]
  or      al, al

  jz      ok
  jmp     debug

   debug:      invoke  ExitProcess,0

if the program is being debugged it closes and if not, it runs normally.
Help me please

19 Apr 2004, 19:14

roticv

Joined: 19 Jun 2003
Posts: 374
Location: Singapore

roticv

crash as in? Can give me details? The following code works fine for me.

Code:

       mov     ecx, [fs:30h]
   test    ecx, ecx
    js      _9x
 movzx   ecx, byte[ecx+2]
    jecxz   @F
;;;;blah blah
_9x:
     mov     ecx, [fs:20h]
   jecxz   @F
;;;;;blah blah
@@:

20 Apr 2004, 11:29

Carlito

Joined: 08 Apr 2004
Posts: 11
Location: Paris

Carlito

Many thanks, it works fine there. But why

Code:

mov   ecx, [fs:20h]

???

20 Apr 2004, 15:34

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