I made this for fun.. Started wth full 16K and then had to cut it everywhere to fit 1K.
Points appearing on top represents rails on the bus that has been activated, ordered as the two internal KB Connectors. Have in mind that in TS1500 and Clones That use ZX Spectrum Keyboard layout Like Czerweny CZ1000Plus CZ1500 or Microdigital TK85, the 5pin connector is orderered backwards.
Shift Key is only checked when pressed along with another working key.
SPACE will break the program so you better press it as last key, and you will know it works.
Bus lines indicators keeps marked once a key was readed using it. That tells you that rail in the keyboard ribbon and the connector are OK. If all lines are marked OK but you still have a Key that doesn't activate your membrane has an internal problen. I saw that situation only once but at least you will know where to search.
Many variables and tables are not listed so Don´t do RUN or CLEAR.. use GOTO 1 instead
I'll perhaps finish a better looking 2K version including the BREAK control routine I saw in this forum earlier.
