
                uHex - a simple and fast hex editor for DOS
                     Copyright (C) Mateusz Viste 2013



* Intro *

uHex is a simple and fast hex editor for DOS. It has been written with care to
work fast even on an 8086 CPU, providing support for large files (up to 2 GiB)
while using minimal amounts of memory. "uHex" stands for "micro Hex".
uHex supports several video text modes (80x25, 80x43, 80x50.. and any other,
as long as it has at least 80 columns), both in color and black & white modes.


* Hardware requirements *

uHex has very low requirements. It runs on anything that provides:
 - an 8086/8088 compatible CPU,
 - a MS-DOS 2.0 compatible operating system,
 - ca. 20K of free conventional memory,
 - an 80 columns video mode.


* How to use *

Run uHex using at least the file you'd like to open as a parameter (possibly
with additional parameters).

Usage: uhex file [/mono | /color] [/ro]

 /mono   forces monochrome display mode
 /color  forces color display mode
 /ro     opens the file in read-only mode

Once uHex is launched, the following key bindings are available:

ALT+H - Help (F1 works too)
ALT+J - Jump to offset
ALT+F - Find an ASCII or HEX string occurence
ALT+S - Save file, applying all modifications
ALT+U - Undo all modifications (reverts the file from disk)
ESC   - Quit uHex


* How to build *

I built uHex using the Borland Turbo C 2.01 compiler, altough any C89 compiler
should be okay, as long as it provides int86() facilities.


* License *

This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
