Some simple FORTH programs for the Minstrel 4th, Minstrel 4D and Jupiter Ace
Count up in binary on the LEDs of an RC2014 digital IO board on address 0x00
A test used during research into the RC2014 sound card writes 255 to each register and displays the value read back (see http://blog.tynemouthsoftware.co.uk/2022/12/ay-3-8910-ym2149-sound-card-for-rc2014.html for more information)
This will detect if an RC2014 sound card uses a YM2149 or AY-3-8910 chip (see http://blog.tynemouthsoftware.co.uk/2022/12/ay-3-8910-ym2149-sound-card-for-rc2014.html for more information)