3 ms·
This reminds me of back in the day (1985) on my final year project, I'd designed a (6502 or 8080 based) SBC, my PCB design, my assembler and on first boot ... n
by mjbright 7mo ago
This reminds me of back in the day (1985) on my final year project, I'd designed a (6502 or 8080 based) SBC, my PCB design, my assembler and on first boot ... nothing happened.
With only a voltmeter in hand, I measured the voltages on the address lines - thankfully my dumb programming error was a very tight loop so it was easy to deduce where the looping was happening !
Some things were easier back in the day.