[[Category:Expansion ROM]]
[[category:Disc Operating System]]
ROMDOS was the most successful high-capacity disc operating system (DOS) published for the CPC. Originally developed by [http://www.tyndalearchive.com/Brewer/author.htm Dave Instone-Brewer] for [[KDS]], it was later resold by [[Siren Software]].
ROMDOS shipped on a single 16k ROM, though a RAM-resident version, RAMDOS, was also available. The ROM was essentially a modified version of the standard AMSDOS ROM, with support added for 80-track and double-sided formats. As a result, the format of the disc was detected automatically, just like standard AMSDOS - a big improvement over competing systems such as [[MS800]].
<pre>Straight from the source code for ParaDOS:
.forms ;first sect, BSH, LSB of DSM
;form enable, sects
db #91,#04,#c7,#fc,10,#c6,"80",#ff ;1. PARADOS 80
Though some of these bugs were later removed, ROMDOS XL never regained its place in the market, and [[ParaDOS]] became the most popular high-capacity DOS. Whereas in Germany the famous [[X-DDOS]] was the most popular DOS.
== Manual ==
* [[File:Ramdos.pdf|Manual]]
== Adverts ==
* [[media:Rdosxl48.zip|ROM DOS XL 4.88 ROM]]
* [[media:RAMDOS_(UK)_(1988).dsk|RAMDOS Software disc]]