[syslinux] Problem with opening a file

[Marc Haisenko]

Hi folks,
I've got a problem with COMBoot (16 bit) in SYSLINUX 2.06: while the write 
string call (ax=2, int 22h) works just fine, the open file call (ax=6, int 
22h) does nothing at all. Calling that function doesn't modify any register, 
and doesn't modify the carry flag.

I then modified comapi_open in comboot.inc so it sets ax to some value and 
recompiled SYSLINUX, reinstalled it in my disk image and reran my tests, and 
still no modification to ax... I checked the syslinux source and my magic 
values (0xDEAD and 0xBEEF for success and failure) are there, so the code did 
get compiled.

Does anyone know how something like this can happen ? The comapi_open does 
appear in the int22_table, and on the correct offset... but I haven't checked 
the ISR yet...

BTW, I'm using VMWare 4 for testing...
C'ya,
	Marc

-- 
Marc Haisenko
Linux Solutions
Be O.K. service group GmbH

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