I have an ancient version (V4.23H/DXT, copyright 1993) of the Archimedes 8051 compiler. If I understand correctly, Keil created it, and Archimedes Software sold it and provided support. The manual for the compiler refers to the -a linker option for controlling the overlaying of local variables, then goes on to say that the option is "too new" to be included in the linker manual.

Sure enough, the linker manual (a separate book) doesn't mention the -a option, but when I invoke the linker (V4.46H/DXT) with nothing on the command line, it gives UNIX-like usage information that includes this cryptic line:

    -a{iw(.)[.]{.}} Overlay control

Can anyone with a manual (or a really good memory!) explain how to use this option?

Thanks,

-- Russ