This is neat. In the 80's, I remember hooking another computer to my Amiga's serial port and entering the debugger ("RomWack".) I had no idea what to do with it though.
My pyamigadebug[1] is backed by this debugger and the newer SAD that replaces it in AmigaOS 3.x.
Making function calls and uploading code to the Amiga and running it is made trivial by pyamigadebug. My AmigaXfer[2] is built on this.
[0]: https://archive.org/details/amiga-rom-kernel-reference-manua...
[1]: https://github.com/rvalles/pyamigadebug/
[2]: http://aminet.net/package/comm/misc/amigaXfer_win32 [2]: https://github.com/rvalles/pyamigadebug/releases