Re: [Freedos-kernel] Re: 32RTM bug

[Michael D. <Fre...@de...>]

At 09:18 AM 8/13/2004 +0300, Luchezar Georgiev wrote:

>I tried "int 0x21 ah=0x34" in both MS-DOS 7.10 and FreeDOS. In both, the 
>returned offset in BX is 321h although the segment in ES is slightly lower 
>in MS-DOS than in FreeDOS (C9h vs D2h). But in both cases, the memory 
>location pointed to by ES:BX was 0. So, that pointer seems valid to me.

Yes, I think the ES:BX pointer is always valid, but I think, or thought, 
that maybe an internal pointer is not valid because of stack problems 
trashing a pointer value elsewhere in the vicinity.

Turns out the problem may be stack-related, but not really pointer 
related.  I may have found the problem and if correct it is Borland's 
error.  More in a bit, I have to double- and triple-check this possible bug 
I found in RTM.