Beetbug is a step debugger.
Inspired from Uxn32's fantastic debugger, Beetbug is a step debugger for Varvara, written in Uxntal. It is the perfect tool to step through a running program. It uses Varvara's Console write port to print debug to the interface, and the System's debug port to put a breakpoint.
Beetbug supports symbol files, and will highlight both the return address on top of the return stack, and the address on top of the working stack, giving you a visual indication of the addresses that are being accessed.
Manual
Launch beetbug with the target rom to debug:
uxnemu beetbug.rom some_project.rom
Beetbug will evaluate the reset vector, starting at 0100, until a BRK is reached, to pause evaluation, you can use the System's debug port as follow:
#010e DEO
Controls
- left Back
- right Step
- A Play/Pause
- B Incr. Speed
- view source
- download rom, 4kb