Well, hopefully the roms can be found, even if in a printout somewhere. Otherwise, we'll need to make our own.The Z80 processor is probably close enough to the 8088 board that adapting the CBM-side code would be possible.Someone would need to adapt a CP/M bios. The Hires board can probably use the HSG firmware with only small changes.There are 3 bitplanes instead of one, so to do colour we probably have to figure out how to select the proper bitplane before issuing a draw command. you probably need to repeat the same draw command with a different plane selected corresponding to the on bits of the desired colour. I started disassembling the HRG firmware a few years ago but never finished. Steve From: Christian Dirks <Toast_r@IdeaLine.info> To: cbm-hackers@musoftware.de Sent: Saturday, June 23, 2018 5:31 AM Subject: Re: New CBM-II discoveries Am 22.06.2018 um 23:40 schrieb Steve Gray: > 1) The Z80 co-processor board. > 2) The Hires Color Grafik board. Great stuff! I wonder if there will be firm-/software to make these useable... -- Christian Dirks Toast_r@Idealine.info Vorster Str. 66 47918 Tönsivorst 2. Stellv. Vorsitzender Verein zum Erhalt klassischer Computer e.V. http://www.classic-computing.de/Received on 2018-06-24 04:00:04
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