This is the home of the OZ ROM space.
OZ 4.2/3 and the Flash Card
Introduction
It has been a long journey from making the first Flash card and updating the OZ software. One could not have happened without the other, so in this section I am covering the historical aspect of the hardware developments as well as what are the advantages of using the latest software.
Initially, the Flash card was just going to replace the EPROM card. BBC BASIC was used to FORMAT, Save and Fetch the files. Just having these functions was not good enough, listing files that were stored on the Flash card quickly required the software to be written as an application.
In parallel with this, users were updating their Z88 with OZ v4.0. It was available via Z88 Users Club. To use it, hardware modifications were needed to replace the existing ROM in the Z88. The internal memory (32K) could also be expanded at the same time.
It was known that there was a 'software hook' in OZ that would allow the Z88 to boot into the software written in slot 1. The 1M Flash card was the ideal candidate for this, there would be no need to do any hardware modifications on the Z88 at all. Before this could happen, OZ 4.0 needed to be disassebled, re-organised documented and understood.
During this discovery stage it was found that RAM and Flash could be on one device, hence the 512K/512K Flash/RAM card was developed.
None of this would have happened without the support of all the people, past and present, who have been involved in this project. They know who they are, thank you for all your efforts
This space is under construction - check regularly for updates..
