Short: bad reg test library Author: lorylombus@gmail.com (Lorence Lombardo) Uploader: lorylombus@gmail.com (Lorence Lombardo) Type: dev/lang Version: 1.0 Architecture: m68k-amigaos "badreg.library" (e) 2022 Lorence Lombardo. The registers A4 and A5 are mostly considered bad choices for libraries because they are mostly reserved for internal operations by a number of languages. But in some special rare circumstances A4 and A5 still might be used in libraries. The "badreg.library" is provided as a convenient tool for testing language limitations and their tools. I was able to make this library work with PB4, C, E and ACE. I had no working solution for the languages Blitz, HB2 and GCC. Feel free to contact me if you find a solution. Making adjustments in GCC for special registers seems like an obscure language and fd2inline does not support A4/A5. web page:- http://geocities.ws/lorylomb/