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I use the cc65 toolset to program my 65c02 projects and the py65 emulator to help debug them. I use a slightly modified version of da65, the cc65 disassembler, to create a complete listing of my code, something I find very useful for multi-file projects.
I use the cc65 toolset to program my 65c02 projects and the py65 emulator to help debug them. I use a slightly modified version of da65, the cc65 disassembler, to create a complete listing of my code, something I find very useful for multi-file projects.
I found some alternative tools, but really wanted to continue using what I was familiar with, so that took some programming work as I couldn't find any options for my current tools. I've already written about my work on a py65 based 65816 emulator. I've refined it a bit and created a version that doesn't require modifications to py65. It's available on my py65816 GitHub. With that down, I only needed a 65816 listing file.
Luckily, the cc65 assembler produces good individual listing files with relative addresses and the linker produces a good map file of the binary. All I needed was a script to combine the individual listing files and resolve the relative addresses. Python to the rescue. You can find more detail on my cc65 GitHub fork.