A new and much expanded edition of the subject manual is available: http://vm.marist.edu/%7epipeline/pippgmi.pdf
Programmers writing filter packages should review the manual.
Programmers wishing to implement built-in functions for SPEC 407
emulation should read the manual and also download FPLLIB TXTLIB,
which contains the interface code. I shall update the howto
chapter in the Author's edition presently.
j.
