QUIET
                           Version 1.3

                          Gene Pizzetta
                        October 11, 1990


QUIET, originally written by Richard Conn, sets, resets, and 
displays the ZCPR3 Quiet Flag, which determines how some programs 
handle their screen displays.

USAGE:

     QUIET {{/}option}

If no option is given, DISPLAY is assumed.  A slash before the 
option is allowed, but not required.  If an option is preceded by 
a "Q", will toggle QUIET's current display status (see below).

OPTIONS:  Only enough letters are required for the option to be 
unique.  That is, only a single letter is necessary for all 
options except ON and OFF, which require two letters.

     DISPLAY   Displays current state of quiet flag.  This is the
               default option.

     SET       Turns on (sets) quiet flag.

     RESET     Turns off (resets) quiet flag.

     ON        Turns on (sets) quiet flag.

     OFF       Turns off (resets) quiet flag.

If the wheel byte is off or if the QtFlag configuration byte is 
set (see below), the SET/RESET and ON/OFF will default to quiet 
mode, not announcing the results of their action.  If the option 
is preceded by a "Q", however, the current default display state 
will be toggled to its non-default state.  The "Q" modifier is 
ignored if it is used alone or with the DISPLAY option (DISPLAY 
always displays).  If an invalid option is given, the program 
error code is set to 19 and the error handler is invoked.

CONFIGURATION:  QUIET can be configured with ZCNFG using the 
QUIETnn.CFG file.  If you do not change the name of the CFG file, 
ZCNFG will always be able to find it, even if you change the name 
of QUIET.

There is only one configuration option.  It determines whether 
QUIET will by default suppress screen displays after executing 
the SET/RESET and ON/OFF options.  Which ever you chose, it can 
be toggled by the Q option on the command line.  If the wheel 
byte is off, the configuration byte is ignored and QUIET defaults 
to quiet mode.

HISTORY:

Version 1.3 -- October 11, 1990 -- Gene Pizzetta
     Added command line quiet option and quiet configuration 
     byte.  Put stack in DSEG and a few other changes to 
     modernize code.  Still under 1K.

Version 1.2 -- June 24, 1990 -- Gene Pizzetta
     It seems a little silly for QUIET to obey the quiet flag, 
     since the flag is apt to change while the program is 
     running.  Instead, this version uses the wheel byte like a 
     quiet flag.  Also added ON and OFF as alternate options for 
     SET and RESET.  Made DISPLAY option the default.  Now allows 
     leading slash for options.  Added Type 3 header.  Displays 
     version and load address only on the help screen.  Sets 
     program error flag and invokes error handler if invalid 
     option is given.  Now uses library routines for most 
     functions.  Uses actual program name on help screen.

Version 1.1 -- Date and reviser unknown to me
     I did not have access to the source code for version 1.1, 
     but the only difference from 1.0 appears to be observance of 
     the quiet flag for display of the help screen, the use of 
     Z80-specific opcodes, and printing the program name and 
     version number with the D option.

Version 1.0 -- March 29, 1984 -- Richard Conn