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           CHED 80 ON-LINE HELP MODULE (C) 1990,1992 SG DATA SYSTEMS
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PROGRAM:  CHED 80
PLATFORM: C= 128 OR 128D RUNNING CP/M 3.0 (CP/M PLUS) 28 MAY 87 RELEASE

AUTHOR:   STEVE GOLDSMITH      ___________________________________________

          SG DATA SYSTEMS            *  State-Of-The-Art Software  *
          2805 JAMAICA STREET
          SARASOTA, FL 34231      IBM PC/MINI/MAIN QANTEL PC/MINI/MAIN
          (813) 925-1064        COMMODORE C= 64 - C= 128 - C= 128D - CP/M
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VERSION:  1.1 PD RELEASE
DATE:     01/09/92

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CHED 80 FEATURES:

CHED 80 (short for CHaracter EDitor 80) is a simple to use 80 column character
editor for the Commodore 128 / 128D series of computers running under
CP/M 3.0 (CP/M Plus).  The main features are:

*    Direct video writes more than 10 times faster than CP/M.

*    Use of SID chip for sound.

*    Easy to use menu selector.

*    Edit a full 512 character set.

*    Single line help in editor.

*    On-line help module for more detailed information.



OVERVIEW OF PROGRAMS:

CHED80.COM   Boot module.  Loads title screen character definition file
             CHED80.CDF, displays title screen, and waits for user to press
             [RETURN].  After [RETURN] has been pressed the default CDF
             DEFAULT.CDF is loaded before the CHED80I.COM module is loaded.

CHED80I.COM  Editor screen initialization module.  Draws the menu selector and
             character set windows then loads the CHED80M.COM module.

CHED80M.COM  Editor main module.  Display character sets, edit character sets,
             loads CDF's, save CDF's and access the on-line help module.

CHED80H.COM  On-line help module.  Allows user to view help file CHED80.HLP.
             Pressing the [ESC]ape key reloads the screen initialization module
             which in turn loads the editor main module.




RUNNING CHED 80:

Log into the drive containing the CHED 80 release disk via A: [RETURN] or B:,
C:, etc.  Once logged into the CHED 80 release disk you can run CHED 80 three
different ways:

1.   CHED80.COM loads the title screen CDF CHED80.CDF, displays the title
     screen, waits for the user to press [RETURN], loads the default CDF
     DEFAULT.CDF and exits by running CHED80I.

2.   CHED80I.COM displays the character set window, menu selector, program
     name and exits by running CHED80M.COM.  This method takes only 10 seconds
     to run the editor on a 1581 drive.  This is also a way to save the
     character set in the 8563 VDC (80 column video display chip) without over
     writing it like CHED80.COM.

3.   CHED80H.COM loads the online help file CHED80.HLP and allows the user to
     view help until the [ESC]ape key is pressed.  After the [ESC]ape key is
     pressed the program exits by running CHED80I.COM.  The user may want to
     use this method the first couple of times until comfortable with CHED80.
USING MAIN MENU SELECTOR:

The Main Menu displays the following selections:

Edit Char
Save Set
Load Set
Quit
Help

To select a particular function use the top cursor keys or their equivilent as
set up in KEYFIG.COM.  As you move the selector bar you will notice that a
breif description of the function is displayed on the top line of the screen.
Once the selector bar is placed over the desired function the user presses
[RETURN] to activate that function.  Each sub function displays breif
instructions for the user.




EDITING CHARACTERS:

To edit a character select the Edit Char function at the Main Menu.  This
places the cursor on the last character edited in the character grid and
displays the character magnified 8 times to the left of the grid.  Use the top
cursor keys to move about the grid and [RETURN] to select a character.  As you
move you will notice the character set and number located on top center of
the character grid change when the cursor moves.  Use this number to determine
which character you are editing.  After [RETURN] is pressed the cursor is placed
in the upper left corner of the magnified character.  Use the top cursor keys to
move, [INST]/[DEL] key to clear entire character, [SPACE] to toggle individual
bits and [RETURN] to exit Edit Char mode.

Character 0 of the alternate character set is reserved as CHED80's background
character.  The user can change this character to test custom background
characters.




SAVING AND LOADING CHARACTER DEFINITION FILES (CDFs):

To save or load a CDF select the save or load function at the Main Menu.  You
will be prompted for a file name.  The file name must comform to CP/M standards
such as TEST.CDF, TEST_1.CDF, TEST01.CDF, etc.  The CDF file name extension is
optional.  After the file name is entered the CDF is saved to or loaded from
disk.  Upon secussful completion or if an I/O error occours the system will
display the appropriate message and return control to the Main Menu selector.
ion or if an I/O error occours the system will
display the appropriate m