Debugging and Profiling 6502-based Computers

I wanted to demonstrate the process of debugging software and hardware faults in homebrew 6502 computer systems, using a cheap logic analyzer and the excellent 6502 Decoder software.

The logic analyzer is Cypress EZ-USB FX2LP. The fx2pipe and decoder software is here: https://github.com/hoglet67/6502Decoder

00:00 Intro
00:33 Example code to debug
02:38 Monitoring the circuit
03:38 Cypress EZ-USB FX2LP
06:24 Capturing data
08:00 Manual inspection
09:48 The 6502 Decoder
13:21 Diagnosing a software bug
15:07 Deeper investigations
17:11 Diagnosing hardware bugs
20:37 Faster clock speeds
24:49 Profiling your code
27:17 Conclusion