Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!RADC-LONEX.ARPA!koziarzw
From: koziarzw@RADC-LONEX.ARPA (Walter Koziarz)
Newsgroups: comp.sys.zenith.z100
Subject: CED100 hacks
Message-ID: <8903271353.AA02326@lonex1.radc.af.mil>
Date: 27 Mar 89 13:53:46 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 67

Date: Wed 15 Mar 89 15:19:02-EST
From: Gern <GUBBINS@RADC-TOPS20.ARPA>
Subject: CED100 hacks
To: INFO-HZ100@RADC-TOPS20.ARPA

At the request of several persons, I finally got around to looking at
the CED100 code.  It is not too readable.   Aside from trying to pretty
up the code formatting, Capitializing responses, etc. I did a minor hack
to easily allow the changing of the CLEAR LINE key and FILENAME COMPLETION
KEY.   Note that the program as is and as it was uses ESC key as a CLEAR LINE
and LINE FEED key as a FILENAME COMPLETION.   Both key values must be
different.  So if you want to use the ESC key to do the FILENAME COMPLETION
like on a DEC TOPS20, set 'clear_line  equ  18h' for CTRL/X or what ever
you like and 'complete_key  equ  1bh'.  Note that CTRL/U (NAK) also
performs a CLEAR LINE already so if you don't want another key as the CTRL/X
example above, set 'clear_line  equ  15h'.

The top lines of the code now read as follows:
(I only put the 'Gern' line in so I know what copy version I am dealing
with in the future)

; CED100.ASM
; Zenith Z-100 Command Line Editor With History And Filename Completion
; Disassembled from PC version and major hacks by Rob Logan
; Minor hacks by Gern  15-MAR-89

Add these two lines to the EQUs at the top of the code:

clear_line	equ	1bh		; ASCII of key to clear line
complete_key	equ	0ah		; ASCII of key for filename complete


Change this segment of code to this:

handle_control_char:
	.switch al
	.case BS
	  call	handle_back_space
	.break
	.case clear_line
	  call	handle_escape
	.break
	.case NAK
	  call	handle_escape
	.break
	.case complete_key
	  call	key_kp0
	.break
	.other
	  call	handle_printable
	.endswitch
	ret


Cheers,
Gern
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Comment by: koziarzw                           Date: Mon, 27 Mar 89 08:53:46 EST

After making the change from 'LINEFEED' as the complete-the-filename key
to 'ESC' the linefeed key no longer causes the computer to perform a linefeed.
The key causes a '^J' to appear on the monitor rather than a linefeed to
occur.  Is there more to change?  Thanks.

Walt K.
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