; ZPATCH vers 1.3
; April 5, 1988 
; author: Steven M. Cohen
;
; Version 1.3 fixes various bugs in version 1.1.
;  -- Searches now work correctly after the search function's help
;     screen is printed.  (Thanks, Ron Bardarson)
;  -- The infamous "8-character" NDR bug (which, incredibly enough
;     caused the display to go haywire) has been fixed. (Thanks, Bruce Morgen)
;  -- An error in the DEC24 routine of M24 has been fixed.  DEC24 was
;     not used until version 1.3, so the error went unnoticed.
;
; The following enhancements are also provided:
;  -- Some needless screen-repainting has been eliminated.  (More work
;     is still to be done in this area.)
;  -- Arrow keys now work in the non-edit mode for advancing the address
;     pointer byte by byte.
;  -- Several command keys have been changed for more consistency with other
;     Z-system tools:
;       X (execute) changed to R (run)
;       R (record #) changed to #
;       Q and  (quit) changed to X and  (exit)
;  -- This version is a ZCPR33 type-3 utility that can be linked to origin at
;     addresses other than 100H.
;  -- It automatically set the offset when working on Z33 type-3 .COM files
;     to their correct load address.
;  -- The ZEXRUN code has been eliminated in accordance with Jay Sage's
;     Z33 programming notes
;
; This is an INTERIM version that fixes all known bugs.
; On the drawing board is an entirely revamped version that will implement
; a much more logical command interface and several other new features.
; Since I am rather busy these days, I decided to relase this version now
; because I have no idea when the revamped version will be released.
; 
; ZPATCH and all files contained within ZPATCH13.LBR are copyright
; 1988 by Steven M. Cohen.  They are released Apr 5, 1988 through the 
; good offices of ZSIG, the Z-system users group.  They may be freely
; copied by all but must not be sold either by themselves or as part
; of another package of software without the expressed written consent
; of the author.
;
; The author may be contacted by electronic mail on the Lillipute Z-Node
; in Chicago, 312-649-1730, which is also the official remote access system
; of ZSIG.
;
; This program was very much a learning experience for the programmer.
; It uses a MODULAR approach to assembly language programming, wherein
; the whole was built up from building blocks which might also find use
; in different future applications.  One advantage of this approach for me
; was that once debugged these routines only needed to be LINKED to the rest
; of the program, not reassembled over and over.  The disadvantage for the
; reader of this source code is that it might just be more difficult to follow.
; That is why source code has been so long in being released for this program.
; Finally after some prodding by Bruce Morgen I am releasing this source,
; even as I understand that some may find it difficult to follow.  Better
; something than nothing, however.
;
; the files BEDITOR.REL, M24.REL, and SYSEXT.REL are relocatable files
; included in ZPATCH11.LBR.  
;
; BEDITOR.REL is a library of routines for the byte editor used in 
; ZPATCH.  
;
; M24.REL is a library of routines to handle conversion of numeric strings
; to 24-bit numbers.  It also includes some utility routines for handling
; these quantities. 
;
; SYSEXT.REL is a library of routines either built upon or replacing
; routines from SYSLIB,Z3LIB,and VLIB, which may be regarded as useful 
; extensions to these.  
;
; Source for all these libraries has been released.
;