This directory contains :

template files i.e.  files written entirely in pascal  and thus usable 
as a guideline for processor or operating system specific implementations.
(this excludes files from the inc directory which are used by all os/proc's)

strings.pp    Turbo pascal compatible strings unit
math.inc      RTL Mathematical functions (on real type)
rttip.inc     Runtime type information include
system.pp     System unit template