3 ms·
I don’t think 1mb expansions were available until the late 80s though.
by DrJokepu 9y ago
I don’t think 1mb expansions were available until the late 80s though.
- vardump 9y agoExpansion would have been unrealistic, you're right. But this doesn't need a RAM expansion at all. See these 512 kbit 1983 vintage EPROM chips: https://www.ebay.com/itm/INTEL-D27512-27512-IC-28Pin-DIP-EPROM-VINTAGE-1983-Brand-New-QTY-1-/252446065069 https://www.ebay.com/itm/INTEL-D27512-27512-IC-28Pin-DIP-EPR... 16 of these 512 kbit chips, some address decoding and banking logic. 1 MB cart. Very much doable with off-the-shelf parts even way back then.