Program:	VIEW, Vers 4.3
Purpose:	Text file viewer.
Author:		Rob Friefeld, 4607 Colorado St., Long Beach, CA 90814
		{Comments to Ladera Z-Node 213-670-9465}
Previous Versions:
	VIEW4.0, (VIEW4.1, VIEW4.2 not released).
Changes:
	Upgrade in listing, reading, and writing functions.  Code now seems to be
proof against even the worst CompuServe downloads.  Allowance for RSX on
memory allocation.  With optional hard coded CRT protocol, program size down
to 4K.  


Files:
	VIEW43.COM	- Generic version with help screen and TCAP access (6k)
	VIEWWYSE.COM	- Expert version without 1k help screen and using
			  precoded CRT routines rather than TCAP (4k)
	VIEW43.HLP	- Instructions
	VIEW43.Z80	- Source
	VIEWOVL3.Z80	- Overlay for patching (if you don't want to POKE)

	HARDVID.LIB	- Hard coded CRT routines for cls,ereol,at,gotoxy,
			  stndout,stndend,tinit,dinit

Uses:
	With a few minutes practice, VIEW becomes a transparent way to browse
text files, e.g.  DOC files, program listings, WordStar files, captured BBS
sessions. The HLP file has extensive documentation of usage.

Operation:
	The file is read until the TPA is full.  Commands permit moving forward
and backward through it, setting place markers, deleting blocks, listing
blocks, writing blocks to disk, reading more of the file, and merging other 
files.  Characters are high bit masked and controls are converted to ^n format.

Patches: (See VIEW43.HLP)
  - A printer initialization string starts at 10Dh.
	# bytes,bytes (up to 16)
  - Highly recommended to install an "insert line" sequence for your CRT
  - As an assembly option, can include a hard coded CRT protocol (Wyse
	compatible) and save about 500 bytes.

VIEW43.COM
; Assembly options
expert	equ	false		; True = assembly without help screen
wrtok	equ	true		; Permit output to disk
lstok	equ	true		; Permit output to list
insok	equ	false		; True = use CRT insert line code
hardvid	equ	false		; True = use hard coded CRT routines, not VLIB

VIEW43WY.COM
; Assembly options
expert	equ	true
wrtok	equ	true
lstok	equ	true
insok	equ	true
hardvid	equ	true

Limitations:
	No support for squeezed or crunched files.

VIEW, VCOMP, BCOMP, and PEEP are a "family" of file viewers.

 Version 4.2 notes
	- High bit mask done immediately.  Avoids problems with FIND and PRINT
	- Scan speed variable with +/-
	- PRINT expands tabs and does not truncate line at screen width
	- Optional use of Wyse compatible CRT protocol rather than TCAP
	- Line feeds stripped to make more room
	- WRITE allows appending text to another file.
 Version 4.1 notes
	- Scroll overlaps one line
	- Memory size routine checks for RSX
	- Corrected bug which capitalized line typed to printer