For test purpose, adding the Klaus Dormann's 6502 testsuite would be great

[kktos]

Is your feature request related to a problem? Please describe.
No problem but for the sake of unit tests, this suite would be nice to validate the cpu emulation

Describe the solution you'd like
Add a tool to run the suite against the cpu emulation.

Describe alternatives you've considered
write one ourselves... but that sounds a tad cumbersome :)

Additional context
There is a nice Github repo here 6502.ts where it is implemented.
It could be worth checking it ;)
Here is the implem : 6502_testsuite

[kktos]

oops, forgot to share the original repo : 6502_65C02_functional_tests