Docomentatioî foò DIFCOM.COM

This document applies to version 1.6 of DIFCOM
Copyright (c) 1983 by author: Harry J Smith, Saratoga, CA

INTRODUCTION

Tï  uså  thå  prograí typå thå namå oæ thå COM filå aô  thå  CP/M�
prompô  linå witè á returî anä nï parameters®  Thå  prograí  wilì �
load and respond with:

  DIFCOM PL/I VERSION 1.6 - April 10, 1983  1900 Hrs
      by Harry Smith
         19628 Via Monte Dr.
         Saratoga, CA 95070

  *** LIST ALL DIFFERENCES BETWEEN TWO FILES ***

  1) Intended to list "PATCH" differences in "COM" files.
  2) Output can be to a text file to be displayed later.
  3) Enter file name of d: to list files on drive d:

  YOU MAY CHANGE DISKS NOW BEFORE ANSWERING NEXT QUESTION!
  FILE NAMES MAY HAVE DRIVE INDICATOR, AS:  B:filename.ext
  AN OUTPUT FILE NAME OF $LST DESIGNATES THE PRINTER.
  AN OUTPUT FILE NAME OF $CON DESIGNATES THE CONSOLE.
  TYPE CONTROL-C TO EXIT PROGRAM.

  DEFAULT DRIVE = A:   INPUT FILE1 NAME:  _

  DEFAULT DRIVE = A:   INPUT FILE2 NAME:  _

  DEFAULT DRIVE = A:   OUTPUT FILE NAME:  _

Afteò thå filå nameó arå input¬ thå fileó arå compareä anä á texô �
file containing a dump of all differences is generated.

É  uså  thió prograí tï documenô thå patcheó É havå puô iî  tï  á �
public domain prograí tï makå iô ruî oî mù system.

DIFCOM13.BAÓ  ió  thå  MBASIÃ versioî anä   DIFCOM13.COÍ  ió  thå �
compileä MBASIÃ version®  DIFCOM16¬ thå PL/É versioî ió noô quitå �
completå  sincå  iô doeó noô givå á directorù oæ thå disë wheî  á �
filå ió noô found, but it runs much faster.

A sample of the output is:

DIFCOM PL/I VERSION 1.6 - April 10, 1983  1900 Hrs
    by Harry Smith
       19628 Via Monte Dr.
       Saratoga, CA 95070


  DIFFERENCES IN FILE1 =  A:M73.COM
             AND FILE2 =  A:M73C.COM
                OUTPUT =  B:TEMP
Š
0100 C3 45 04 FF 00 00 00 FF  7D 3A A6 E0 C9 32 A7 E0 CE......}:&`I2'`
0100 "" "" "" "" "" "" "" ""  "" "" AE "" "" "" AF ""           .   / 

0110 C9 E6 02 C9 FE 02 C9 3A  A7 E0 C9 E6 01 C9 FE 01 If.I~.I:'`If.I~.
0110 "" "" "" "" "" "" "" ""  AF "" "" "" "" "" "" ""         /       

0120 C9 C3 69 17 3A A5 E0 C9  32 A5 E0 C9 32 A5 E0 C9 ICi.:%`I2%`I2%`I
0120 "" "" "" "" 00 00 00 ""  00 00 00 "" 00 00 00 ""     ... ... ... 

0130 32 A6 E0 32 00 00 C9 00  41 3D 42 75 6C 6C 65 74 2&`2..I.A=Bullet
0130 "" AE "" 00 "" "" "" ""  "" "" "" "" "" "" "" ""  . .            


     592  LINES CHECKED          4  LINES(S) DIFFER.

FILES ARE THE SAME LENGTH


This showes that the bytes at 010A, 010E, 0118, etc. differ.


                                Harry J Smith
                                19628 Via Monte Dr.
                                Saratoga CA 95070

                                Voice Phone: (408) 257-9240