MEFISDOS?

Discussion about ZX80 / ZX81 Software
Post Reply
User avatar
mrtinb
Posts: 1906
Joined: Fri Nov 06, 2015 5:44 pm
Location: Denmark
Contact:

MEFISDOS?

Post by mrtinb »

I've seen this software mentioned several times in the forums.
  • What does it do?
  • Does it run on plain ZX81?
  • Is there a homepage where it is described / downloadable?
Martin
https://zx.rtin.be
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube
User avatar
PokeMon
Posts: 2264
Joined: Sat Sep 17, 2011 6:48 pm

Re: MEFISDOS?

Post by PokeMon »

Well - siggi will answer soon, I think.
He is one of the core developer.

In the meanwhile:
http://www.fischerkai.de/zxteam/hdif_e.htm
User avatar
siggi
Posts: 988
Joined: Thu May 08, 2008 9:30 am
Location: Wetterau, Germany
Contact:

Re: MEFISDOS?

Post by siggi »

MEFISDOS is a disk operating system for a ZX81, developed by Joachim Merkl and Kai Fischer. It has been initially used to store ZX81 programs on hard disk. Meanwhile other device drivers do exists, so that MMC-cards or battery-buffered ram (ramdisk) is used to store program.
It runs usually in (E)EPROM at 8-16K, using 2 paged 16kB ram banks above 48K for working storage. But also a version without banking and running in ram at 8K exists (MINI-MEFISDOS), using the range 32K-64K as working storage. It uses its own file system, not Bill's FAT ....

For details see Joachims posting in the German forum:
http://forum.tlienhard.com/phpBB3/viewt ... 133#p27066

Siggi
My ZX81 web-server: online since 2007, running since dec. 2020 using ZeddyNet hardware
http://zx81.ddns.net/ZxTeaM
Post Reply