With a good power supply filter capacitor, the Sol-20 is now running sufficiently reliably that it passed the 8080 Exerciser., generating the expected CRC values. In order to find the bug(s) in the 8080 simulator I wrote last month, I’ve just started the Sol running a modified version of the exerciser that outputs every result byte it hashes into the CRC. The simulator ran this in 10 minutes on a 3.2 GHz Athlon II X3 450, prodcucing 16,191,998 lines of output. I estimate that it will take 24.5 hours for the Sol-20 to run it.
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