Cool! That's pretty impressive. The 6502 is a beautifully simple processor. I recently started learning about it from Ben Eaters youtube series[1], and have a printout of the W65C02S (a more modern variant with optional 16bit support, but full backwards compatibility) datasheet beside my bed[1]. Tables 5-1, 5-2 and 6-4 might bring back some memories :)

[1] https://www.youtube.com/playlist?list=PLowKtXNTBypFbtuVMUVXN...

[2] https://www.mouser.ie/datasheet/2/436/w65c02s-2572.pdf