Message board for the users of flat assembler.
> Windows > Hang on windows startup
here is what i got :
my app starts as usual app and works great while i start it with my hand, but when it is started by windows start-up or from code (for ex. C#) it hangs and crushes
dwThread rd 1 invoke CreateThread, NULL, NULL, MyApp, NULL, NULL, dwThread test eax, eax je @f invoke WaitForSingleObject, eax, -1 jmp Exit @@: xor eax, eax inc eax Exit: ret
any help is appreciated ^_^[/code]
EIP 7795DB5C ntdll.7795DB5C
C 0 ES 002B 32bit 0(FFFFFFFF)
P 1 CS 0023 32bit 0(FFFFFFFF)
A 0 SS 002B 32bit 0(FFFFFFFF)
Z 0 DS 002B 32bit 0(FFFFFFFF)
S 0 FS 0053 32bit 7FFDD000(FFF)
T 1 GS 002B 32bit 0(FFFFFFFF)
O 0 LastErr ERROR_SXS_KEY_NOT_FOUND (000036B7)
EFL 00000306 (NO,NB,NE,A,NS,PE,GE,G)
ST0 empty 0.0
ST1 empty 0.0
ST2 empty 0.0
ST3 empty 0.0
ST4 empty 0.0
ST5 empty 0.0
ST6 empty 0.0
ST7 empty 0.0
3 2 1 0 E S P U O Z D I
FST 0000 Cond 0 0 0 0 Err 0 0 0 0 0 0 0 0 (GT)
FCW 027F Prec NEAR,53 Mask 1 1 1 1 1 1
|18 Mar 2015, 06:46||
Is that you entire code? If so then there are some problems.
1) No "format ..." is specified so you get 16-bit code as a raw binary file (similar to a .com file).
2) No entry point is specficed so it starts executing the "dwThread rd 1" as the first instruction.
3) No call to ExitProcess (a "ret" does not always do what you might expect, and a 16-bit com program should use "int 0x20" or other DOS exit function).
If that is not your whole code then we can't test what you haven't given us. At least make a short example that compiles and runs without us having to go to extra effort and make assumptions about what you are doing.
|18 Mar 2015, 08:17||
|18 Mar 2015, 14:08||
CreateThread's last parameter:
Is this 32bit or 64bit code?
|20 Mar 2015, 02:17||
|20 Mar 2015, 02:38||
1. Make sure dwThread is in a readable+writeable section.
2. Use a debugger
|21 Mar 2015, 12:59||
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