I’ve moved the colecovision MiST port from the pacedev repository into its own repository to be independent from the pacedev framework. While touching the code I’ve added the possibility to load files with the .bin extension and to disable the scan doubler.
Latter option is untested as I don’t own a capable monitor.
The binaries are at the usual place and the new source home is here: https://github.com/wsoltys/mist-cores/tree/master/fpga_colecovision
I finally found the issue that certain homebrew games (for example from Daniel Bienvenu) showed the title screen but won’t proceed. It was a problem with the pacedev framework and not with the core itself.
I decided to finish the pacedev colecovison port for the MiST. I used the platform to update the mist related pacedev files and stick the data io and osd into the framework. I wanted to use variables for the data_io ram file but mixing verilog with vhdl isn’t that easy so I used hardcoded values for now. Hopefully I can clean that up a little in the future. For now it works fine. The osd is a little wide but my clock divider can only half the frequency of the used video clock of 21.333 MHz. Enough talk just let the pictures speak for themselves: