On 09/17/2012 07:50 PM, Jim Brain wrote: > BUt, what does JP301 do in the schematic? I don't think I accounted for > it, and I have just glanced at your schematic. JP301 allows you to have another Kernal image in the EPROM. That way you are able to fully use the 27C256: 1 BASIC, 2 KERNAL 2 Char-ROM If JP301 is set, _KERNAL going low means that A13 and A14 of the EPROM will go LOW. If JP301 is not set, A13 will be HIGH and A14 will be low when _KERNAL goes low. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2012-09-17 19:00:55
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