There is barely enough space for the LED's they're packed in there like commuters on the 5 O'clock train!
But, you can very easily alternate colours of LED's.? I'm using Red and Yellow, in sets of 4 for HEX.
Nothing stopping you from doing sets of 2,3,3.? Might need to count out the right number of LED's for both layouts.
Cheers,
Josh
On Wednesday, November 20, 2019, 3:44:18 PM EST, Paul Bigwood <paul@...> wrote:
Lee,
?
I was very interested in the G Barrow 8080 S100 board octal display and keypad. A Google search turned up the user manual with cct and rom code.
I first learnt octal coding when i worked at DEC as a field service engineer in the uk in the '80s, and had forgotten how opcodes could be decoded and encoded easier using octal compared to hex.?
Octal was very popular when the 8080 first came out.?
I wondered if it is possible to space the address bus and data bus LEDs in octal spacing rather than binary/hex making it easier to enter and read the LEDS in octal. e.g. Data LEDs and switches are spaced?
Like this? XX XXX XXX? rather than XXXXXXXX. Same applies for Address bus. Vis
Address bus XX XXX XXX XX XXX XXX rather than the XXXXXXXXXXXXXXXX.
Is it planned to add a SD card for cp/m??
Best regards
Paul G3WYW?
As i understand the existing code,? the bus input switches toggle the associated?
