Re: Link to a couple of DOS's written in NASM

"Rod Pemberton" <do_not_have@[EMAIL PROTECTED]
> wrote in message
news:ft3srm$c4t$1@[EMAIL PROTECTED]
> "Frank Kotler" <fbkotler@[EMAIL PROTECTED]
> wrote in message
> news:47F4DC45.1090005@[EMAIL PROTECTED]
> > Rod Pemberton wrote:
> > > http://litux.wz.cz/htm/download.htm#ltdos
> >
> > Great stuff! I haven't gotten it to actually work, beyond the "here I
> > am!" test.
>

I got the .COM version of MicroDOS to the display the title - if I comment
out his code relocation and wipe in "****ft code behind end of buffers" and
"Clear data buffers" and adjust dx in "Display intro text" in init.asm... 
I
didn't try to figure out how far it went after that point.

> Further than me...  I'm not sure how to start them.  They're not a
device
> driver despite the .SYS extension.

Doh!  Not a device driver .SYS, but an "IO.SYS" .SYS...  (Sigh, just a few
of those "one of those days" I guess. ;)  SYS A:, COPY (not XCOPY) over
IO.SYS.  I tried it for LTDOS.  It started... and hung.

LTDOS looks much more complete.  It looks like all the pieces are there.
But, I haven't looked enough to tell if he got it all together properly...
I did notice that he seems to think that 0:700 is a good place for the
stack... supposedly below the code (?, what ever happened to 7c00?).  If
it
goes down, he overwrites the interrupt vectors.  Up, his code...  I'm
wondering what PC or PC variant this is/was for.

Anyone read Czech?  Redelmeier?


Rod Pemberton