One of my 2022 Project Goals is a PIC32-based robot which emulates a 6502. While working on the emulation, I kept having to look up details about address modes and flags, so I made a Python program for Linux called i65 to look up information like the addressing mode, size, cycle count, and flags for 6502 instructions (GitHub link). It can take an instruction name or addressing mode as an argument and displays information for any instructions that match.
If the program is started without any arguments, it waits for input and shows all instructions that match what you type until it's narrowed down far enough to show the full information. The Kowalski 6502 simulator has this, and I wanted something similar for Linux.
