AM9511 Arithmetic Processor

From the original .FOR file:

"Notes on adding a floating point processor to your Z80 system. Low level software driver for AMD9511A/Intel8231A arithmetic processor unit chip and Turbo Modula-2 MathLib replacement included, and description of technique used to convert between AMD and IEEE floating point format. Explains how to interface hardware floating point processor to your favourite language."

This code is likely of limited historical interest only.