Greetings to all the new comers.
This article is based on Github repo: ValleyBell/MidiConvertes and Mistydemeo/Pmdmini. Special thanks to オップナー2608 from PC-9800 Series Central Discord Channel for helping me.
Meh... a detailed description of this little project will be covered in a future article (If I actually would do). Basically, I'm trying to make a portable music player / midi synth based around YM2608. I expect this project to take forever to complete...orz
Let's get our hands dirty quick!
Continue reading "[OPNA] An Analysis of The P.M.D. Music Data Format (Mostly the "Rhythm" Section)"
Part2. Bit What?
This article is about the "bit-serial" design scheme employed in HP35's digital design.
Continue reading "HP35: A Bit-Serial Wonder - 2. Bit What?"
In this section, we will have a brief look at the ISA of the HP35, the first look into the system.
Continue reading "HP35: A Bit-Serial Wonder - 1. Introduction"
This part is the prelude to a series of articles on the internal design of the first pocket scientific calculator: HP35.
Continue reading "HP35: A Bit-Serial Wonder - 0. Prelude"