On 20 April 2016 at 17:32, Pete Turnbull <p...@dunnington.plus.com> wrote: > The Z80 CoPro ran CP/M - real licensed CP/M 2.2, not the bastardised > often-not-compatible "CPN" lookalike offered by Torch, and came with GEM and > various office software.
Hang on. I think you're conflating 2 different coprocessors and their software here. GEM didn't run on CP/M. It was considerably too big and too complex for an 8-bit CPU. GEM's graphics API, the VDI, was partly based on Digital's Research's CP/M graphics API, GSX, though. https://en.wikipedia.org/wiki/Graphical_Environment_Manager GEM ran on MS-DOS, DR's own DOS+ (a forerunner of the later DR-DOS) https://en.wikipedia.org/wiki/DOS_Plus ... and on the Atari ST's TOS, derived in part from CP/M-68K. https://en.wikipedia.org/wiki/Graphical_Environment_Manager#Atari_versions The only BBC copro that could run GEM, AFAIAA, was the BBC Master 512 with the Intel 80186. http://chrisacorns.computinghistory.org.uk/Computers/Master512.html -- Liam Proven • Profile: http://lproven.livejournal.com/profile Email: lpro...@cix.co.uk • GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lpro...@hotmail.com • Skype/AIM/Yahoo/LinkedIn: liamproven Cell/Mobiles: +44 7939-087884 (UK) • +420 702 829 053 (ČR)
