One chip MSX improvement project

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By HRA!

Master (199)

HRA!'s picture

26-01-2020, 12:54

v2020.01.26 has been released, but some issues have already been identified.
I would like to consider once again how to create various timing signals with reference to the implementation of OpenMSX.

By HRA!

Master (199)

HRA!'s picture

27-01-2020, 22:06

The web page address of OCM改 has been changed.

http://hraroom.s602.xrea.com/msx/ocm/index.html

By HRA!

Master (199)

HRA!'s picture

30-01-2020, 15:16

https://twitter.com/thara1129/status/1222883037597200385

I tried to incorporate JoyMega into Mega Drive 3B pad. A1GT was confirmed to work without any problem. However, I confirmed that the response of A button and START button was bad in OCM. I suspect that the OCM has a bug that the output signal from the JoyStick port (Pin 8) is not stable.

By HRA!

Master (199)

HRA!'s picture

15-02-2020, 15:23

I have added MIDI-IN / OUT terminals to DE0CV + DEOCM. We are also designing a clone for i8254 / i8251. The purpose is to be able to use MSX-MIDI.

https://twitter.com/thara1129/status/1226855180760580096

https://twitter.com/thara1129/status/1228076644373389312

Improving VDP is very difficult, so we start with the easy part first. ;)

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