Can all registered uses please login, even just for a few minutes..
It helps build a picture where our "good traffic" is coming from..
Thanks :)

4MB to 1MB of RAM in software?

General Discussion, STOS.
Post Reply
User avatar
Darklord
Site sponsor
Site sponsor
Posts: 1640
Joined: Wed Sep 20, 2017 1:41 pm
Location: Prestonsburg
Contact:
Contact Darklord

Re: 4MB to 1MB of RAM in software?

Post by Darklord »

derkom wrote: Sun Jun 27, 2021 6:51 am That's the cutoff I recall as well, but again I thought it was about formatting, not reading and that TOS could always read a MS-DOS-formatted floppy. Perhaps someone who knows for sure can set the record straight.
Er sorry, guess I wasn't clear. I also believe that from the get-go TOS could *read* DOS formatted floppies but couldn't
DOS compatible format them until TOS v1.4 and up.

HTH's. :)
Welcome To DarkForce! www.darkforce.org "The Fuji Lives.!"
Atari SW/HW based BBS-Telnet:darkforce-bbs.dyndns.org 1040
Top
User avatar
stephen_usher
Site sponsor
Site sponsor
Posts: 7515
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
Contact:
Contact stephen_usher

Re: 4MB to 1MB of RAM in software?

Post by stephen_usher »

Indeed, the ST didn't generate unique ids in the FAT header for a start, so PCs wouldn't recognise a disk change for a start, plus the FAT12 format was simplified a bit, which confused MSDOS.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
Top
User avatar
rubber_jonnie
Site Admin
Site Admin
Posts: 15210
Joined: Thu Aug 17, 2017 7:40 pm
Location: Essex
Contact:
Contact rubber_jonnie

Re: 4MB to 1MB of RAM in software?

Post by rubber_jonnie »

A quick look here: https://en.wikipedia.org/wiki/Atari_TOS and it states in the 2nd line that DOS disk compatibility came with 1.04/1.4.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Top
Post Reply

Return to “SOFTWARE”