; * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
; *								  *
; *			      S C A N				  *
; *								  *
; *	     A ZCPR3-Compatible Buffered Bi-directional 	  *
; *	      Video-oriented Text File Display Utility		  *
; *		  For Text and Library Member Files		  *
; *								  *
; *			Copyright (c) 1988-90			  *
; *				 by				  *
; *			     Terry Hazen			  *
; *			21460 Bear Creek Road			  *
; *			 Los Gatos, CA 95030			  *
; *								  *
; *		   Voice.......... (408) 354-7188		  *
; *		   Zee-Machine.... (408) 245-1420		  *
; *		   Ladera Znode... (213) 670-9465		  *
; *								  *
; * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
;
;
; Revision History
; ----------------
;
; 05/18/90	Changed find string routine so entire screen isn't
;   v2.2	scrolled to mark next find when next find is still on
;		current screen.  Added mark and find place markers
;		0-9.  Added command buffer that speeds up multiple
;		command sequences by interrupting current display
;		operation if more commands are pending.  Fixed error
;		that loaded wrong environmental processor speed
;		value.	Added additional ^QQ exit command.  Many 
;		general code revisions.
;			- Terry Hazen
;
; 01/01/90	Extensively revised to fix all known bugs in v2.0.
;   v2.1	Uses added terminal capabilities defined in new
;		extended Z3TCAP, including Delete and Insert Line,
;		and terminal configuration flag byte, if they are
;		available, for faster and better display.  Added ^KR
;		command to read in files without needing to return to
;		the command line, ^KW command to write text being
;		displayed to a file.  Added patch byte for found string
;		display line.  Reduced number of text buffers to 2.
;		Buffer size now initialized at startup to use all
;		available memory up to CCP or lowest protected RSX.
;			- Terry Hazen
;
; 10/27/88	Fixed several bugs causing problems with buffer
;   v2.0A	management and string find.  Current find string now
;		remains active when running under ZCPR3 GO command.
;			- Terry Hazen
;
; 10/18/88	Completely redesigned and rewritten in Z80 code.  ZCPR3
;   v2.0	compatible when operating in ZCPR3 environment.  Gets
;		terminal control sequences from Z3TCAP and supports DIR:
;		form.  Terminal control sequences can be patched into
;		internal Z3TCAP for non-ZCPR environments.  Added string
;		find command, bottom of file command.
;			- Terry Hazen
;
; 10/11/85	Initial release.
;   v1.2		- Terry Hazen
;
;=======================================================================