The BBC and Master Computer Public Domain Library

AAFF PI

Submitted by Steve Fewell

Description:

Call the &A8BE routine to load the FWA with the Floating-Point constant at
location &BF2E in the Floating-Point constant table.
The constant value at &BF2E is 1.57079633. This value is Pi / 2.
Add 1 to the exponent to multiply this value by 2, this will give Pi as the result.
Exit with the FWA set to Pi (3.14159266).

Disassembly for the PI routine

Disassembly for A8BE: the Load FWA with &BF2E value (PI/2) routine