  {REGISTER}  - Examine/Alter ZCPR3 Register Values
  {SPOP}      - Pop an element off the Shell Stack
  {RESET}     - Re-log the Hard & Floppy Drive System
   WHL        - Read/Set the Wheel Byte
:
	 {REGISTER}  - Examine/Alter ZCPR3 Register Values

   This command allows the user to Examine, Increment, Decrement
or set any of the ten registers defined in the ZCPR3 Environment.

Syntax:		REG [option][n]
			or
		REG S[n] value

	Where:	n is a Register Number in [0..9]
		option = D to display all register values
			    (no register Number needed)
			 P to increment the register by 1
			    (0 assumed if not specified)
			 M to decrement the register by 1
			    (0 assumed if not specified)
		value = decimal value in [0..255]
:
	 {SPOP}  - Pop an element off the Shell Stack

   This command is used to discard the command currently on the top
of the Shell Stack.

Syntax:		SPOP n

:
	 {RESET}  - Re-log the Hard & Floppy Drive System

   This command Re-logs all Hard and Floppy Drives on the system.
It properly handles the Fast-Relog feature of ZSDOS and re-logs the
default disk when complete.  This should be executed after any
Unerase or PUTDS operation on Hard Drives to insure that the Banked
Allocation Vector in ZSDOS2 is properly updated.

Syntax:		RES

:
	 WHL  - Read/Set the Wheel Byte

   This command simply reads the Wheel byte and indicates the
current setting if no arguments are passed.  If arguments exist,
they are compared to the embedded Password in the CPR.  If a match
is obtained, the Wheel Byte is turned On giving the user appropriate
privileges.  A mismatch Disables the Wheel byte restricting the user.

Syntax:		WHL		<- Display current setting
		WHL password	<- Turn on if match, else disable
