The original BMOW: a custom-designed, hand-built 8-bit CPU and computer.
While updating the BMOW documentation, I came across this diagram of the main system board layout that might be interesting to share. It shows every part on the board, and howthey’re all grouped into the subsystems that form the computer.…
I’ve written one more program for BMOW: a utility to set the date and time. OK, I admit it’s not very exciting, but it is mighty useful when a buggy program overwrites the memory-mapped real-time clock registers for the fifth…
One more demo: I wrote a music visualizer to show off the AY chip tunes, and also converted a bunch more AY songs for use with BMOW. Now there’s something cool to look at while you listen to that glorious…
I know I’ve said this before, but I think BMOW is fast approaching a state of “done”. For the last week I’ve been polishing some old demos and making some new ones, for inclusion in the final demo ROM. Along…
I discovered an interesting BMOW hardware bug today– one that I’m amazed I never noticed before. It involves what I call “phantom reads” causing unexpected system behavior. I only stumbled across the problem by accident, while trying to troubleshoot why…
I’ve implemented the new memory map I described earlier, updated the software, and everything’s working great. This has allowed me to finally make some progress on my goal of a menu-driven bootloader, with a catalog of built-in demo programs from…
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