Submitted by Steve Fewell
Name: Floating-Point Subtraction
Starting Address: &A68A
Entry criteria: &4A and &4B (the argp) point to a 5-byte Floating-Point variable to
subtract from the FWA. The FWA contains the number to subtract from.
Exit: The FWA = [argp] - FWA.
Calls &ACCA to compliment the FWA. Now the FWB and [argp] values can be added,
so, continue to the Floating-Point addition entry point at address &A68D.
|A68A||032 202 172||20 CA AC||JSR &ACCA Compliment FWA|
|A68D||... Floating-Point Addition Entry Point|