There are still a few regressions to address, but keyCode-to-simCode-to-scanCode conversion feels more robust/cleaner, and new features like programmable repeat rates will actually be doable now
The old VisiCalc demo state file (state.json) was triggering a spurious (keyboard?) event that would generate a beep and wipe the copyright message; I'm kind of curious what was causing that, but the simplest solution for now is to generate a new state.json.
Some other interesting bugs were fixed along the way:
the Video component incorrectly assumed that masking a negative number with 0x80000000 would yield 0x80000000 (it actually yields -0x80000000, thank you JavaScript);
the ChipSet component provides a new addCMOSMemory() interface that RAM objects can use to bump the CMOS total to match the actual total;
the CPU properly implements INSW and OUTSW instructions now (kind of important for the AT hard disk controller)
