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Bunch of questions on FreeDos (memory managers) (Users)

posted by Rugxulo Homepage, Usono, 28.06.2010, 07:13

> I was thinking about writing some very simple graphical program first just
> to understand the basics better. But here comes hypothetical problems: my
> graphic card is scaling (to-fit) standard video modes and that really
> sucks. If it is something that i will not be able to control in my program,
> then who I will blame for it? And god knows how it will look on another
> person's screen.
Dunno, but Allegro is full of support for various cards. It might be more of a BIOS issue. Or maybe using SVGATextMode tools will help. I forget, but I'm pretty sure someone had similar issue once before, so last resort, check the FreeDOS FAQ.

> I am not going to develop any CAD or DTP software, at least now. I think
> 640x480 is safe to run on most computers. You may be laughing, i have
> 1024x576 matrix on my netbook.

Nobody's laughing, 640x480 should be fine if that's what you want.

> I will if i can. I was not doing much yet as you see, crashes with JEMMEX
> (last version i suppose) was something like this: grouped digits in appr. 2
> text lines appeared and then computer hangs (Ctrl-Alt-Del dont work).

JEMM's docs list a "ultra-safe" setting, so you should try that before assuming anything. Yeah, it's technically "too safe", but that's what you want before adding lots of extra params.

> Also FDISK utility from distro 1.0 made my computer "Missing operating
> system":-) when i tried to make second partion, but i am sure i didnt
> asked it to touch first (dos) partition. But XFDISK did the job better.
FD FDISK there is old (as is FD 1.0 by now, 2006, but still no 1.1 yet) and has a few bugs. There was a slightly newer version, but even that was never truly finished. Yes, XFDISK might work better. SPFDISK is mostly good for SATA hard drives.

---
Know your limits.h

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