SubSystems in the OS

	The Four new subsystems in the OS Kernal and system drivers are 
the Math subsystem, the TSR control unit, the TI-OS Variable Support
section, and the Relocation System Controller.
	The Math subsystem includes all hte ROM's math functions, along
with some of its own functions for ease of use.  It contants the floating
 point support operations invloving the floating point stack. It also 
contains some comparison and logic evaluation functions.
	The TSR control unit is in the kernal entirely, and it is what
allows the kernal to support program residencey, and the interrupt list
It has a few of its own interrupts for the system for maintenance
purposes, and it also is in charge of safely exiting the interrupt 
system when the OS exits, taking off the interrupt list so that it 
doesnt screw up during the TI-OS.  If specifically requested by the 
program code, it may append the code onto the end of the Bootstrap 
loader and relocate it again, so it can be run during the TI-OS 
operation.  (this last part may be in a further version or something.)
	The next subsystem is the TI-OS Variable Support section.  This
is the part that emulates the TI-OS variables when an Usgard/ZShell 
program attempts to use a TI-OS variable.  It allocates some RAM for it
and copies the variable into a DHOS memory arena. Then the program is
made to believe the variable actually is there.  The VAR functions 
actually modify that variable.  Then when the program is exited, the
var is kept in an arena.  When the OS exits back to TI-OS, all the 
variables in the TI-OS list actually modify the TI-OS variables.  That
is when deletion/resizing/creation/modification of the actually TI-OS
variables occurs, preventing the programs from needing to be relocated.
	The final new subsystem to be discussed here is the Relocation
System Controller.  this is the part that uses the relocation table
included in the file, but loaded into a different arena, to modify
the actually program's code and function calls to be correct for the 
current ROM version, currrent OS version, and its postion in the RAM.
it also modifies the program to deal correctly with the library calls 
and other loaded file calls.  When done with the relocation table, it
deletes it from the RAM arena, freeing up space for other things.

This document is a description of a few of the subsystems to the OS 
kernal that i just added to the jpeg image of the circle diagram 
showing the OS's related elements.  These subsystem support more and
more of the features that were given as ideas for the system.  Any
more ideas, please email them to the list.