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56dd957402
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6 Commits

Author SHA1 Message Date
Andrew Makousky
56dd957402 Mac 128k PAL signals mostly working, hooray! 
Also start working on BBU video timing signals, and documentation
improvements.
 2020-12-27 09:19:35 -06:00
Andrew Makousky
306024838b Finally figured out S5 is a pull-up resistor. 2020-12-24 11:23:08 -06:00
Andrew Makousky
fe87fea02c Fixes to mac128k PAL simulation issues, more documentation. 2020-11-28 16:36:09 -06:00
Andrew Makousky
c490406c81 BBU: More analysis and insight. 2020-11-25 17:18:41 -06:00
Andrew Makousky
602a9b564d BBU: Add DRAM sim, almost done with mac128k. 2020-11-25 06:04:07 -06:00
Andrew Makousky
6678c4b2ab Commit BBU work-in-progress. 
For comparative simulation, I'm also assembling the logic of the earlier
Macintosh 128K, and possibly also Macintosh Plus, in Verilog, and
planning on doing MLB board-level simulations too.
 2020-11-25 01:05:48 -06:00