On Tue, Dec 24, 2013 at 4:55 PM, didier derny <didier@aida.org> wrote: > I’m playing with sasi recently and I’m looking at the schematics of > 9060/9090 (taken from commodore.ca) Cool. > Any idea of what really is the component between the 6522 and the 2716 > The number written is either 5810 (most probably) or 9810 it has 24 pins. > > Is it a 128 byte ram ? Yes. It's really a 6810 Motorola 128 byte SRAM. > Apparently the most interesting software is In this 2716… There are two sets of firmware in there (two CPUs). One talks to the PET via IEEE and understand CBM DOS commands, the other talks to the SASI board, and they have a patch of SRAM for shared data. > Any idea if a source code exist for this rom ? > I would like to extract the sasi commend really send by this board There may be some manual disassembly out there, but I do not think it's as extensive as for the BASIC and KERNAL ROMs -ethan Message was sent through the cbm-hackers mailing listReceived on 2013-12-25 04:00:09
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