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Binary editor. Uses EMACS command structure for full editing; not just byte substitution. Source code in C.
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Contents of the BEAV132.TXT file



Binary Editor And Viewer

Manual Copyright 1991
Version 1.32
November 8, 1991

Peter Reilley
19 Heritage Cir.
Hudson, N.H. 03051
[email protected]

BEAV source and executable can be freely
distributed for non-commercial purposes.


BEAV User Manual

Table of Contents

1.0 Introduction 3
1.1 Quick Start 3

2. Overview 5
2.1 Terms and Definitions 5
2.2 The Screen Format 5
2.3 Display Modes 6
2.4 Commands 7
2.5 Buffers 8
2.6 Files 8
2.7 Key Binding 9
2.8 Configuration 9

3. Command Description 11
3.1 Help 11
3.2 Cursor Movement 11
3.3 Buffer Management 13
3.4 File Management 14
3.5 Window Management 16
3.6 Inserting and deleting 18
3.7 Search and Replace Commands 19
3.8 Exiting BEAV 21
3.9 Printing 21
3.10 Keyboard Macros 22
3.11 Key Binding 22
3.12 Special Functions 23

4. Alphabetical list of commands by name 26

5. Alphabetical list of commands by key binding 29

6. Release notes 32

7. Source Availability 34


BEAV User Manual

1.0 Introduction

BEAV is an editor that brings the features of a powerful
full screen editor to the editing of binary files. It is the
only editor that I know of that does that.

When you need to edit a non-text file you generally have
two choices; a text editor or a file zap type editor. Each
choice has significant disadvantages.

Text editors expect the file to be formatted in a certain
way. At a minimum they expect that all lines be terminated by a
carriage return or line feed and be limited in length. There is
no line length limit with BEAV. Most text editors get confused
by bytes that are outside of the normal range (20 to 7E HEX).
In BEAV no special characters such as carriage return or line
feed affect the display aside from producing their numeric value.
BEAV can edit any file no matter the format.

The other choice is to use a file zap type editor which can
edit a binary file without difficulty. These editors are often
very limited in their features and capabilities. Most file zap
programs can edit a file only in HEX or ASCII. They generally
operate on a sector basis and because of this they cannot insert
or delete data in the middle of the file.

All these limits are eliminated in BEAV. You can edit a
search or search and replace in any of these modes. Data can be
displayed in BYTE, WORD, or DOUBLE WORD formats. While
displaying WORDS or DOUBLE WORDS the data can be displayed in
INTEL's or MOTOROLA's byte swap format. Data of any length can
be inserted at any point in the file. The source of this data
can be the keyboard, another buffer, of a file. Any data that
is being displayed can be sent to a printer in the displayed
format. Files that are bigger than memory can be handled.

Some users may recognize the similarity to the EMACS text
editor that was written by Richard Stallman at MIT. This is not
a coincidence. I attempted to keep as much of the user
interface and functionality as possible given the very different
tasks of EMACS and BEAV.

1.1 Quick Start

This is a brief description of the minimal set of commands
that are necessary to start using BEAV effectively.

The file-visit command, Ctl-X Ctl-V, can be used to read a
file in for editing. The file can also be read in from the
command line; beav .

These commands can be used to navigate around the window.


BEAV User Manual

move-back-char Ctl-B moves left
move-back-line Ctl-P moves up
move-forw-char Ctl-F moves right
move-forw-line Ctl-N moves down

The move-to-byte command, Ctl-X G, will prompt you for a
byte position to move to.

These commands will insert a zero byte at the cursor
position or delete the byte at that position.
insert-unit Ctl-X I
delete-forw-unit Esc D

The file-save command, Ctl-X Ctl-S, will save the data to
the file if a change has been made.

The help command, Esc ?, will display a list of all
commands and their current key bindings.

The abort-cmd command, Ctl-G, will abort any command that
is in operation.

The quit-no-save command, Ctl-X Ctl-C, will exit BEAV. If
there is any data that has not been saved you will be warned.


BEAV User Manual

2. Overview

2.1 Terms and Definitions

Throughout this manual certain terms will be used to
describe the operation and structure of BEAV.

The data that BEAV is editing is held in a buffer that is
structured as a byte stream. There are many commands that
affect the way that this byte stream is displayed on to the
screen. Whatever display mode is chosen the data in the buffer
is not effected, only the presentation.

One such choice is to display the data as bytes, words, or
double words. That is; 8 bit values, 16 bit values, or 32 bit
values. Whatever choice is made the value of the selected size
will be displayed. These values are referred to as units in
this manual. Thus the 'delete-forw-unit' command deletes the
unit under the cursor. If 32 bit units are being displayed then
4 bytes will be deleted.

Many commands in BEAV start by pressing the 'ESCAPE' key.
When this manual refers to a command that requires that the
'ESCAPE' key be pressed it will be abbreviated with 'Esc'.
Another frequently used key stroke to start commands is 'CONTROL
X'. This in done by pressing the 'CONTROL' key then pressing
the 'X' key at the same time. In this manual this will be
abbreviated by 'Ctl-X'. Many commands contain other control
characters and these will be abbreviates similarly. Thus the
'insert-unit' command will be listed as 'Ctl-X I'. This will be
entered be pressing the CONTROL key and while holding it hitting
the 'X' key, release the CONTROL key then hit the 'I' key.

2.2 The Screen Format
BEAV presents information to the user in a number of areas.
The first is the window. There will be at least one window
displayed on the screen at all times. The window consists of
two areas. The first is the display area. This is where the

data that is in the buffer is displayed. Most of the time the
cursor will be in this area, as this is where most editing is
done. Each line in the display area will start with a number
that indicates the offset into the buffer for this line of data.
At the bottom of the display area for each window is the status

The status line presents the user with a number of specific
pieces of information. The first is the program name which is
"BEAV". Next there are some flags indicating the status of this
particular buffer.

The first flag indicates if the buffer has been damaged by a
memory allocation failure. If there is a '?' then the buffer is


BEAV User Manual

bad, otherwise there will be a space. Bad buffers are set to
read only.

The next flag indicates if the buffer has been changed and
will need to be written out if the changes are to be saved.
This flag is a '*' if the buffer has been changed, otherwise
there will be a space.

The next flag indicates insert/overstrike mode; 'I' for
insert, 'O' for overstrike. This is only meaningful in ascii or
ebcdic mode.

Then the buffer name followed by the file name. A window
can be in read only, read/write, or read/write with size lock.
These will be displayed as [RO], [RW], or [WL] respectively.
If auto-update is enabled then [AU] will be displayed.

Next the cursor position in bytes and the character position
within the unit. The next piece of information gives the format
that the data is being displayed in; HEX, OCTAL, DECIMAL, BINARY,
ASCII, EBCDIC. If a data mode is selected then the size in
bytes (1, 2, 4) is displayed. If the data is being displayed
in Intel mode then the swapped flag is displayed, 'S'. Lastly
the byte shift is displayed; 0 only for 8 bit data, 0 or 1 for 16
bit data, or 0, 1, 2 or 3 for 32 bit data.

There can be multiple windows on the screen at the same time
but each window will have a status line at the bottom.

The very bottom line on the screen is the prompt line.
This is where you enter data that BEAV requests. If you want to
edit a new file you would type 'Ctl-X Ctl-V', BEAV would respond
with "Visit file:" on the prompt line. The cursor would be
positioned after the prompt. You would then enter the name of
the file that you wished to edit.

If you entered the command by mistake, you can abort the
operation by typing a 'Ctl-G'. 'Control G' is a universal abort
command and can be used anywhere. If you want to perform a
search you will enter the search string on this line. When you
have entered the information that BEAV has requested hit 'Return'
and the cursor will return to it's original position in the
window display area. The prompt line is also where error
messages are displayed.

2.3 Display Modes

The data in the buffer can be displayed in a number of
formats. First there is the display mode. This can be either;

If ASCII or EBCDIC mode is chosen then each byte in the
buffer will be converted to it's ASCII or EBCDIC character and


BEAV User Manual

displayed. Bytes that are outside of the standard character set
will be displayed as a dot. Each line will be 64 characters
long. The byte value for "carriage return" and "line feed" will
be displayed as a dot as will any other non-printable characters.

data can be displayed in 8, 16 or 32 bit values. If 16 or 32 it
values are displayed the user can choose to view these values in
either the Intel format or the Motorola format. If Intel format
is chosen then the first byte in each unit is the least
significant byte when the value is calculated. Thus in hex 32
bit mode a byte string of "32 7A 9F 10" would be displayed as
"109F7A32". If Motorola format is chosen this value would be
displayed as "327A9F10".

There is another display format choice that affects the 16
or 32 bit formats. This is called shift. The shift can be 0
or 1 for 16 bit modes, or 0, 1, 2, 3 for 32 bit modes. Shift
moves the zero point reference for the buffer up by the selected
value. The default is zero shift. If a buffer is displaying
the following 32 bit hex data;

"12345678 2F4792AF 673DFEA1 88551199"

with the shift at 0. Changing shift to 1 will produce;

"3456782F 4792AF67 3DFEA188 55119955"

The data has been slid down toward the beginning of the buffer by
one byte. This has not changed the data in the buffer at all,
it has only affected the way that the data is presented on the
screen. This is useful when looking at WORD or DOUBLE WORD data
that is not aligned on two or four byte boundaries.

When BEAV is first started or a new window is opened the
default format is HEXADECIMAL BYTES.

2.4 Commands

Commands are the means that the user controls the operation
of BEAV. A command can be given by using one of two methods.
The first is to use the key binding.

A command can have one or more associated key bindings. It
can also have no key binding. There are a set of default key
bindings that BEAV comes configured with. The current set of
key bindings can be seen by using the 'help' command. The
'help' command is 'Esc ?' or Function Key 1 'F1' on the IBM PC.
The help buffer can be scrolled by using the up and down arrow
keys. A printed copy may be obtained by going to the bottom of
the help buffer using the 'move-to-end' command ('Esc >' or the
'End' key). Then issue the 'print-mark-to-cursor' command ('Esc
P' or 'Ctl-Print') and enter 'PRN' or a file name when prompted


BEAV User Manual

with "Print to:". This will output the entire help buffer to a
printer connected to the parallel interface or the specified

The second method of issuing a command is to use the
'extended-command' command (Esc X). You are prompted for a
command name that you want to execute. This method is useful
for executing commands that have no key binding. Commands that
can take a long time to complete can be stopped by pressing Ctl-

2.5 Buffers

Buffers are the in memory storage for all data editing and
viewing. Each buffer has a name that appears in the mode line.
Buffers generally have a file name that is associated with them.
The file name also appears in the mode line. The buffer name
and the file name are independent but the buffer name defaults to
the file name.

The buffer name is used to refer to a specific buffer.
The 'change-buffer' ('Ctl-X B') command will prompt you for a
buffer name. After you enter a buffer name that buffer will be
displayed in the current window. If there is no such buffer,
one will be created and displayed (it will be empty).

When BEAV is run with a file name as a command line
parameter, the file is read into a new buffer. The buffer name
will be made the same as the file name. The file name is only
used when the buffer is saved. If the file name is changed
using the 'buffer-set-file-name' ('Ctl-X Ctl-F') command then
when the buffer is saved it will be saved to the new file.

Buffers are dynamically allocated. They grow or shrink as
the size of the data they contain changes. The buffer size can
be frozen using the 'buffer-size-lock' ('Ctl-X Ctl-L') command.
This prevents inserting or deleting data from the buffer but data
can be modified.

Buffers continue to exist even if they are not being
displayed. Buffers are saved in a linked list that can be
stepped through using the 'change-to-next-buffer' ('Esc +') or
'change-to-prev-buffer' ('Esc -') commands. If the 'change-to-
next-buffer' command is given then the next buffer in the list is
displayed in the current window.

2.6 Files

Files are the means of storing data on disk. Files or
segments of files can be loaded into BEAV for editing or viewing.
The file on the disk has not been changed until BEAV does a save


BEAV User Manual

to that file. When a save to a file is performed the original
file contents in saved in a ".bak" file.

2.7 Key Binding

All commands in BEAV have a command name and a default key
binding. The bindings may be changed to suit personal
preference by using the 'bind-to-key' ('Esc K') command. The
current binding of a key sequence can be displayed by using the
'binding-for-key' ('Ctl-X ?') command.

Key bindings can be loaded automatically from a file named
".beavrc" under UNIX or "beav.rc" under MSDOS. I will refer to
this file as the beavrc file in this document. This file must
be in a directory specified by the PATH environment variable.
When BEAV is started this file is read and the bindings are
loaded. This file is a simple text file and can be edited to
make changes.

The beavrc file contains three columns. The first is the
function name to be bound. The second is the key sequence that
is bound to that function. The third is a number that defines
the key code. When the beavrc file is read, in only the first
and third columns are used.

The simplest way to create a valid beavrc file is to first
bind the key codes to the desired functions using the 'bind-to-
key' command (Esc K). Next display the current bindings in a
window using the 'help' command (Esc ?). Now save that buffer
to a file with the 'file-write' command (Ctl-X Ctl-W). You will
be prompted for a file name. The file written is a valid beavrc
file. You may want to edit the beavrc file to remove the
commented lines, ie, those beginning with #, to make it load

On UNIX systems there can be multiple .beavrc files, one
for each terminal type. This is accomplished by appending the
TERM variable to .beavrc. Thus if you use both a vt100 and a
wyse60 terminal, you could have a .beavrc.wy60 and a
.beavrc.vt100 bindings file. When your TERM variable is
TERM=wy60 then the .beavrc.wy60 bindings file will be used. If
there is no .beavrc.wy60 file then the .beavrc file will be used.

2.8 Configuration

When the MSDOS version of BEAV run it detects whether the
system is an IBM PC or a clone. If a PC is detected then a set
of key bindings that use the 10 function keys and the relevant
keypad keys are loaded. If the system is not recognized then
only the standard bindings are loaded.


BEAV User Manual

If a PC is detected the screen is managed by making BIOS
level calls that enhance performance. Otherwise, the screen is
controlled by making ANSI compatible calls to the operating
system. This is much slower but is not sensitive to hardware
configuration. This requires that non-standard MSDOS systems
support ANSI display controls. The following ANSI escape
sequences are used;

Position cursor ESC [ ; H

Erase to end of line ESC [ 0 K

Erase to end of page ESC [ 0 J

Normal video ESC [ 0 m

Reverse video ESC [ 7 m

On unix systems the termcap library is used. This
requires that the TERM environment variable be set correctly.


BEAV User Manual

3. Command Description

This section describes all BEAV commands as to their
function and any side effects that they may have. The first
line of each description of a command will begin with the default
key binding then the command name and follows with the key
binding for a PC.

3.1 Help

This command returns information that will aid in the use
of BEAV.

Esc ? help F1

A new window is opened by splitting the current window then
all current key bindings are displayed. This buffer is larger
than can be shown at one time and must be scrolled up and down to
see all entries. All commands that do not alter data can be
used to move around and search the help buffer. To leave the
help buffer use the 'window-delete' command ('Ctl-X 0').

Lines that begin with the comment character (#) are
commands that have the default bindings. Lines without the
comment character have been bound by the user or by processing a
beavrc file. The comment character helps in creating a beavrc
file by identifying only those bindings that have changed.

3.2 Cursor Movement

There are a number of commands that move the cursor around
the current window. If the cursor bumps the top or the bottom
of the window the position of the window will be adjusted so as
to keep the cursor within the bounds. When the window is moved
in response to cursor movements it is moved by about one third of
the window size. This improves performance by reducing the
number of window moves.

Ctl-P move-back-line North (up arrow)
Ctl-N move-forw-line South (down arrow)

These commands move the cursor up one line or down one
line. If the cursor is on the top line in the buffer and a
'move-back-line' command is given the cursor will jump to the
beginning of the first unit in the buffer. If the cursor is on
the last line of the buffer and a 'move-forw-line' is given the
cursor will move to the last unit in the buffer.

Ctl-F move-forw-char East (right arrow)
Ctl-B Move-back-char West (left arrow)


BEAV User Manual

These commands move the cursor forward or backward in the
current line. If the cursor is at the first character in the
first unit of the line and the 'move-back-char' command is given
then the cursor will wrap to the last character of the previous
line. If the cursor is at the last character of the last unit
in the current line then it will wrap to the first character of
the next line.

Esc F move-forw-unit Ctl-East
Esc B move-back-unit Ctl-West

These commands are similar to the above set but they move
the cursor by units rather than characters. The command 'move-
forw-unit' will position the cursor to the first character of the
next unit. The command 'move-back-unit' will move the cursor to
the first character of the previous unit.

Ctl-V move-forw-page PageUp
Esc V move-back-page PageDown

These commands move the move the data in the window by the
number of lines in the window less one. The cursor will stay in
the same position relative to the window as the data is moved.

Esc < move-to-beginning Home
Esc > move-to-end End

Move the cursor to the beginning or the end of the buffer.

Ctl-X G move-to-byte F9

Prompt for a byte offset, then go to that position in the
current buffer.

Ctl-X Ctl-N move-window-down Ctl-Z
Ctl-X Ctl-P move-window-up Esc Z

Move the buffer in the window up or down by one line.
This does not effect the cursor until it hits the top or bottom
of the window.

Esc . mark-set F2

Set the mark position to the current cursor position. The
mark position is remembered even for nonactive windows and

Ctl-X Ctl-X swap-cursor-and-mark

The position of the cursor and the position of the mark are

Esc L window-link


BEAV User Manual

This command causes all windows that are displaying the
contents of the current buffer to have the same cursor position.
Thus if one window is scrolled then all other windows that
display that buffer are scrolled so as to keep the cursor in the

Ctl-X = show-position

The current position of the cursor and the mark are
displayed. The buffer size, file size and file name are also

3.3 Buffer Management

Buffers store all data that is being edited. The only
limit to the number of buffers is the size of available memory.
If a file is loaded into a buffer and there is insufficient
memory to hold the entire file, then it will be loaded until
memory is exhausted. The buffer will then be set to read only

Ctl-X Ctl-B buffers-display Ctl-F1

A new window is opened and a list of all buffers in BEAV is
displayed. The list contains the buffer name, the file name (if
it exists), the buffer size, and a state flag. If the list is
too large for the window, you can scroll the list. If you
position the cursor on a line describing a buffer and give the
set-mark (Esc .) command you will be prompted to; Go to, Kill, or
Save that buffer.

Ctl-X B change-buffer Ctl-F2

This command prompts you for a buffer name. If you enter
the name of an existing buffer, that buffer will be displayed in
the current window. If the name does not match an existing
buffer, a new buffer will be created and displayed. This buffer
will be empty and will have no file name.

Esc + change-to-next-buffer Ctl-F4
Esc - change-to-prev-buffer Ctl-F5

The next or the previous buffer in the buffer list is
displayed in the current window. This does not effect buffers
that are displayed in other windows.

Esc G move-to-buffer-split

Prompt for a buffer name. Then split the current window
and display that buffer, creating it if necessary.

Esc Ctl-N buffer-set-name Esc Ctl-N


BEAV User Manual

The current buffer name is changed to the name that you
enter. This does not effect the file name.

Ctl-X Ctl-F buffer-set-file-name Ctl-F7

The file name of the current buffer is changed to the name
that you enter. This does not affect the buffer name.

Ctl-X K kill-buffer Ctl-F3

This command prompts you for a buffer name. This buffer
is then deleted. If the buffer is currently being displayed you
are prompted for conformation. If the buffer has been changed
you are again prompted for conformation.

Ctl-X Ctl-L buffer-size-lock

The buffer size is prevented from being changed. Data can
be edited but only by changing the existing data. If a buffer
is copied into a size-locked buffer the operation well be
successful but will overwrite existing data. This command
toggles between locked and unlocked.

Esc Y yank-buffer Ctl-F6

Data from one buffer is inserted into the current buffer at
the cursor position. You are prompted for the name of the
buffer to copy from.

Esc O save-mark-to-cursor

Prompt for a buffer name. Create a new buffer with that
name and write the data from the mark to the cursor into that

Esc Ctl-W show-save-buf

Displays the contents of the save buffer in a new window.
The save buffer cannot be edited. This command can be used to
see the data that the yank (Ctl-Y) command will insert into the
current buffer.

3.4 File Management

These commands control BEAV's access to files. Files are
loaded into buffers or are written from buffers. Commands that
prompt for a file name also accept range parameters. Range
parameters are always given in the numeric base of the current
window. Thus if you are displaying data in decimal format then
the range parameters must be entered in decimal.

The size of a file read or write can be limited by
specifying a range. The range parameter specifies the offset


BEAV User Manual

into the file, not the buffer. Range parameters can be
specified in these forms;


The first form causes the read or write to begin from the
value until the end of the buffer on write or the
end of the file on read.

The second form reads or writes from until

The third form reads or writes from for

Thus, if the command 'file-read' is given and you enter at
the prompt; main.obj 1000 +100. If the current display mode
is hex, the file "main.obj" will be read from hex byte address
1000 to 10FF into the buffer.

Ctl-X Ctl-R file-read Sh-F2

Prompt for a file name and read that file into the current
buffer. This overwrites the current contents of the buffer.
The buffer name is not changed but the buffer file name is set to
the new file name.

Ctl-X Ctl-S file-save Sh-F3

Write the current buffer out to the file if it has been
changed. If the buffer has not been changed then do nothing.

Ctl-X V file-view

Prompt for a file name and read file into a new buffer and
display in current window. Set to read-only mode.

Ctl-X Ctl-V file-visit Sh-F4

Prompt for a file name. If the buffer already exists then
display it in the current window. Otherwise, read file into a
new buffer and display in current window. If there is no such
file then create it.

Esc U file-visit-split

Same as above but split current window and display new
buffer. This displays the new buffer as well as the old buffer.

Ctl-X Ctl-W file-write Sh-F5


BEAV User Manual

Prompt for a file name, then write the current buffer to
that file.

Ctl-X Tab insert-file Sh-F8

Prompt for a file name and insert that file into the
current buffer at the cursor position.

Ctl-X Return save-all-buffers Sh-F6

Write all buffers that have been changed to their
respective files.

3.5 Window Management

BEAV presents information to the user in one or more
windows. Each window is a view into a buffer where the data is
actually stored. The window controls how this data is formatted
for display to the user. Data can be displayed as HEX bytes,
OCTAL bytes, ASCII characters, plus many others. The display
format is associated with the window. Thus if a new buffer is
displayed in the current window that new data will be displayed
in the current windows format.

The only limit to the number of windows is the screen size.
A window can be no smaller than two lines. This along with the
mode line associated with each window limits to eight the number
of windows on an IBM PC 25 line screen.

Any window can view any buffer including having many
windows on the same buffer. For example, two windows can
display the same buffer but present the data in two different
modes. One window could display HEX bytes and the other could
display ASCII characters.

Ctl-P change-window-back Ctl-PageUp
Ctl-N change-window-forw Ctl-PageDown

These commands move the cursor to the next or previous
window on the screen, making it the current window.

Ctl-X Z window-enlarge
Ctl-X Ctl-Z window-shrink

Enlarge or shrink the current window size by one line.

Esc ! window-reposition

Move window position so that the cursor is centered in the
window. The cursor position in the buffer does not change.

Ctl-X 2 window-split


BEAV User Manual

Split the current window into equal parts. Both haves
have the same display mode and view the save buffer.

Ctl-X 1 window-single

Expand the current window to fill the entire display, all
other windows are removed. Make the current window the only
window displayed. This has no effect on the underlying buffers
except that they may not be displayed any more.

Ctl-X 0 window-delete

Delete the current window and expand the upper window to
fill the space. This has no effect on the underlying buffer
except that it may not be displayed any more.

Esc Ctl-A display-ascii
Esc Ctl-E display-ebcdic
Esc Ctl-H display-hex
Esc Ctl-O display-octal
Esc Ctl-D display-decimal
Esc Ctl-B display-binary

These commands set the window display mode. Text buffers
can be displayed as ASCII or EBCDIC characters. Buffers that
are not human readable can also be displayed in hexadecimal,
octal, decimal, or binary format.

Esc 1 display-bytes
Esc 2 display-words
Esc 4 display-double-words

As a further option on the non-text display modes, data can
be displayed as 8, 16, or 32 bit values.

Ctl-E display-swap-order

When data is displayed as words or double words the order
of significance can be changed. In Intel microprocessors the
least significant byte of a word is stored at the lowest address.
Thus if the word 5892 (HEX) were stored at memory address 10,
then 92 (HEX) would be stored at address 10 and 58 (HEX) would be
stored at address 11. In Motorola microprocessors the reverse
is true.
This command toggles between the Intel and Motorola schemes
of assembling bytes into words and double words. This command
has no effect on byte display or on the text display modes. The
data in the buffer is not changed.

Ctl-A display-byte-shift

This command changes the offset from the beginning of the
buffer used to assemble words and double words. The default


BEAV User Manual

shift is 0. For example, a double word at address 10 is made up
of the bytes at address 10, 11, 12, and 13. With a shift of 1
that double word would be made of bytes 11, 12, 13, and 14.
With a shift of 2 then bytes 12, 13, 14, and 15 would be used.
The maximum shift in word display mode is one and the maximum
shift in double word mode is three.

The buffer is in effect shifted toward the beginning of the
buffer with 1, 2, or 3 bytes becoming not visible. These bytes
are not lost, they become visible when the shift is set to zero.
This command cycles through all possible shift values. There is
no effect in any byte display mode or any text display mode.

3.6 Inserting and deleting

These commands are the core of BEAV. These commands allow
the buffer to be edited in a similar fashion to a text editor.
BEAV has an insert mode much the same as text editors but it only
works when displaying data in one of the text modes, either ASCII
or EBCDIC. In other modes it doesn't make any sense to insert
characters as they are typed when there is more than one
characters per unit. In the data modes there is a command that
inserts a unit of zeros into the buffer. Similarly the delete
commands always delete a unit rather than a character. In a
text mode the delete commands work as in a text editor because a
unit is a character.

Ctl-X I insert-unit

Insert a zero at the cursor position. The rest of the
data moves down one place. Thus, if double words are being
displayed, four bytes are inserted before the cursor position.
These bytes are initialized to zero. This command works in all
display modes.

Ctl-X Ctl-A insert-toggle Insert

In either of the two text modes this command toggles
between insert mode and overwrite mode. In insert mode each
character that is typed is inserted in front of the cursor and
the rest of the buffer is moved down. In overwrite mode the
typed characters replace the character that is at the cursor.
This command has no effect in a non-text display mode.

Ctl-Q insert-literally Esc Q

This command sets a special temporary mode where the next
typed character is inserted in the buffer no matter what the
character is. This allows control codes to be inserted in the
buffer when in a text display mode. Alternatively the same byte
could be inserted into the buffer by using one of the data
display modes. It night be faster to use this command on some


BEAV User Manual

Ctl-T unit-twiddle

The unit at the cursor is swapped with the previous unit.

Rubout delete-back-char Backspace

This command deletes the character before the cursor and
pulls the rest of the buffer back. The cursor remains on the
same character as it moves back. It only works in the text and
byte display modes.

Ctl-D delete-forw-char Delete

The character at the cursor is deleted and the buffer is
pulled back. The cursor remains at the same position. It only
works in the text and byte display modes.

Esc Rubout delete-back-unit Esc Ctl-K

This command deletes the unit before the cursor and pulls
the rest of the buffer back. The cursor remains on the same
unit as it moves back.

Esc D delete-forw-unit

The unit at the cursor is deleted and the buffer is pulled
back. The cursor remains at the same position.

Esc W copy-mark-to-cursor F7

The area in the buffer from the mark to the current cursor
position is copied into the kill buffer. If the mark is not set
before this command is given an error is reported.

Ctl-W delete-mark-to-cursor F8

The area in the buffer from the mark to the current cursor
position is deleted and placed into the kill buffer. If the
mark is not set before this command is given an error is

Ctl-Y yank F6

The contents of the kill buffer is inserted into the buffer
at the cursor position. The kill buffer itself is not changed.

3.7 Search and Replace Commands

BEAV has very powerful search and replace commands. The
search and replace string can be entered in any of the display
modes. The search and replace strings can each be up to 256
bytes long. The display mode can be changed at any time while


BEAV User Manual

entering the string. Wild cards can be placed down to the bit
level on both the search and replace strings. The wild card
character, '?', will match any value that it is compared with.

When a wild card is placed in the replace string it leaves
the destination data unchanged at that position. Thus, if the
destination contains the ASCII string '41 42 43 44' and the
replace string contains '66 67 ?? 69' the result would be '66 67
43 69'.

Wild cards can be placed in any position that makes sense.
If you want to use wild cards in an ASCII string then you must
switch to another mode to enter them. You can then switch back
to ASCII mode. In this case a '?' will appear in the position
where the wild card has been placed but it appears exactly the
same as a standard question mark. In fact if you type a '?'
over the wild card there will be no apparent change. However,
the character will no longer be a wild card but a standard
question mark. To see the true wild cards you must use a data
display mode. In fact if the wild card has been set on the bit
level then you must go to binary display mode to see its actual

The commands to change the display mode in search and
replace are the same as for the window display mode. The search
and replace strings can be scrolled back an forth and the cursor
moved using the same commands as for the window. While
performing a replace command you can switch between the search
string and replace string by using the 'move-back-page' or 'move-
forw-page' commands.

Esc S search-forw F3

Prompts for a search string then searches from the current
cursor position for the first match. The cursor is positioned
at the first unit of the match.

Esc R search-back

This command is the same as the previous one except that it
searches backward.

Esc T search-again F4

This command repeats the previous search command, forward
or backward. The cursor is first moved one byte in the
appropriate direction before the search is repeated.

Esc % replace F5

Prompt for search string. After entering the search
string hit return and you will be prompted for the replace
string. After entering the replace string hit return. BEAV
will then search for the first match with the search string. If


BEAV User Manual

a match is found you will be prompted with '(R)eplace, (S)kip,
(A)ll, (O)ne, (Q)uit'

If you type a 'R' the replace will be done at this location
and the search will continue. If you type a 'S' the replace
will not be done and search will continue. If you type an 'A'
the replace will be done and will be done at all future matches
without pausing for conformation. If you type an 'O' the
replace will be done at this location and the search will stop.
If you type a 'Q' then the search will be terminated.

Ctl-R recall-srch-string

If you enter search or replace previously used strings can
be recalled with this command.

3.8 Exiting BEAV

While using BEAV individual buffers may be saved to disk
during the editing session. When quitting BEAV you must save
all buffers or delete all buffers. There are two commands that
do this.

Ctl-C quit-no-save Sh-F10

If there are any unsaved buffers you will be prompted for
conformation before proceeding. All buffers will be deleted
then you will return to DOS.

Ctl-X Ctl-E quit-save-all Sh-F9

All buffers are saved before exiting to DOS.

3.9 Printing

The data that is being displayed in BEAV can be printed or
sent to a file in the same format as displayed. If the current
window is displaying octal words and a print command is given the
format of the print will be in the format of the window; that is,
octal words.

Esc P print-mark-to-cursor Ctl-Print

To use this command you must set the mark and the cursor to
define the region that you want printed. If the mark is not set
it as assumed to be at the first unit. After you enter the
command you will be prompted with 'Print to:'. You can enter a
file name or a device name to send the print image to. If you
enter 'PRN' most systems will print a hard copy.

This is useful for getting a print out of the current key
bindings. To do this give the 'help' command 'F1'. Go to the


BEAV User Manual

bottom of the help window using the 'move-to-end' command 'End',
the mark will be assumed to be at the beginning of the buffer.
Issue the 'print-mark-to-cursor' command. Enter 'PRN' at the
prompt. This should print the complete help buffer and will
reflect any changes that you have made to the key bindings.

3.10 Keyboard Macros

BEAV has the capability of recording key strokes as they
are entered and playing them back later. This is useful for
repeating multi-keystroke operations.

Ctl-X ( macro-start

Start recording key strokes. There is no effect on the
operation of the key strokes. Any previous recorded key strokes
are cleared.

Ctl-X ) macro-end

Stop recording key strokes. The key strokes are available
for play back.

Ctl-X E macro-execute

Play back the recorded key strokes. The key strokes that
were recorded are played back as if they were typed at the

3.11 Key Binding

BEAV provides a user configurable interface. The
interface is controlled by a set of key bindings. This relates
the command that will be executed when a particular key stroke is
entered. There are a set of default key bindings as described
in this manual. These can be changed to reflect your
preferences. When a change is made it is reflected in the help

Ctl-X ? binding-for-key Sh-F1

This command will tell you what function a certain key
sequence is bound to. When this command is given you will be
prompted for a key stroke or key stroke sequence. BEAV will
report back with the function name.

Esc K bind-to-key

First you will prompted for a function name. Enter the
name of the function that you wish to create a new binding for.
Function names are the names listed in this manual that are of
the form of 'move-forw-unit' or 'display-hex'. After you enter


BEAV User Manual

the name hit return. You will be prompted for a key. This can
be in the form of a single standard key such as 'Z'. Standard
key sequences can be entered such as 'Ctl-X Z'
or 'Esc Z'. Special keys can be entered such as 'F1' (function
key 1) or 'Page Down'. It is probably a good idea to not use
keys that are needed for editing. If you bound 'Z' to a
function then you would not be able to enter it as a keystroke
when using ASCII display mode. You could still enter it using
the 'insert-literally' command or doing it in one of the data
display modes but this would be more cumbersome.

Ctl-X L bindings-load

You are prompted for a file name that contains the key
binding that you wish to set. This file is read in and the
appropriate bindings are set. The text in the binding file
should be of the form;

For example;

Ctl-X Ctl-P move-back-char 0550
F1 move-forw-char 04bb
Ctl-A move-forw-unit 0141
Esc Ctl-T move-back-unit 0354

The easiest way of producing a valid key binding file is to
set the desired bindings in BEAV. Next issue the 'help' command
(ESC ?), then write the buffer out with the file-write command
(Ctl-X Ctl-W). The file created will be a valid format for
loading and can be edited as desired. It is the only reliable

way to get the number.

3.12 Special Functions

These are the commands that do not logically fit under one
of the previous headings

Gtl-G abort-cmd F10

This command aborts the current command. It can even
abort a partially entered command. Thus, if you have typed an
'Esc' as that start of a command you can type Ctl-G to return to
the normal command entry mode.

Esc A auto-save

BEAV can be set to automatically save the current buffer
after a specified number of buffer editing commands are given.
This command first prompts for the number of operations before
the save is made. If a zero is entered at the prompt, this


BEAV User Manual

feature is disabled. The default condition of this command is

Esc C compare

This is a powerful feature of BEAV. The contents of two
windows are compared byte for byte from the current cursor
position in each window. There must be exactly two windows to
use this command. These windows can be displaying the same or
different buffers. When a difference is found the cursor in
each window is moved to that position and both windows are moved
accordingly. The display mode does not affect the operation of
this command except in restricting the cursor position to whole

Esc X extended-command

If any command looses its binding, this command allows the
unbound command to be used. A command can loose its binding
because the binding was assigned to another command. When this
command is given you will be prompted for a command name. Enter
the command name that you wish to execute, it will be executed as
if you had typed its key binding.

Esc Ctl-F n-way-combine

The contents of other windows can be copied sequentially
into the current window. This is useful in combining odd-even
proms into an executable image file. To use this command create
an empty window with a buffer file name of an empty or
nonexistent file. Read into additional windows the files that
you want to combine. While in the empty target window, issue
the n-way-combine command. The data in the other windows will
be read into the current window. The next window lower on the
screen will be read first, then the one below that, etc.

For example; if you had two files, promlow.bin and
promhi.bin that you wanted to combine into a file called
prom.bin. First issue the file-visit command (Ctl-X Ctl-V),
enter prom.bin at the prompt. This file should be empty of non-
existent. Next read promlow.bin into a new window with the
file-visit-split command (Esc U), enter promlow.bin at the
prompt. Open another window for promhi.bin with the same
command. Go to the window containing prom.bin (empty). Issue
the n-way-combine command. BEAV will copy the first byte from
the window immediately below the prom.bin window and deposit it
in the destination window buffer as well as advance the dot
position in both windows. It will advance to the next lower
window and copy a byte from there into the destination window and
advance the dot in both windows. This process will continue
until one of the source buffers is exhausted, or the user
terminates the command.


BEAV User Manual

The user must take care that the source buffers are in the
correct order. They are read starting at the window immediately
below the current window. If the target window is at the bottom
of the screen then it wraps to the top. In this way any order
can be used and changed at will.

Esc Ctl-S n-way-split

This command is the mirror image of the n-way-combine.
The data in the current window is distributed among the rest of
the window buffers displayed. The current window buffer must be
the only window buffer that contains data. If there are two
other empty window buffers then the data will be divided two
ways. If there are five then the data will be divided five ways

Ctl-L refresh-screen

The screen is reprinted from BEAV's internal buffer. This
is useful if the display is messed up due to transmission errors.
On a PC this is unlikely to happen.

Esc Ctl-V show-version

The version and date of BEAV is displayed in the command

Ctl-X C spawn-shell

A new MSDOS command shell is created. You can return to
BEAV by typing 'exit'.

Ctl-U repeat count

This command prompts for a number to be entered. This
causes the next command given to be repeated by that number of
times. This command cannot have it's binding changed and cannot
be issued using the 'extended-command' function.


BEAV User Manual

4. Alphabetical list of commands by

Command Key Binding Manual Section
------- ----------- --------------
abort-cmd Ctl-G 3.12
abort-cmd Ctl-X Ctl-G 3.12
abort-cmd Esc Ctl-G 3.12
abort-cmd F10 3.12
auto-save Esc A 3.12
bind-to-key Esc K 3.11
binding-for-key Ctl-X ? 3.11
binding-for-key Sh-F1 3.11
bindings-load Ctl-X L 3.11
buffer-set-file-name Ctl-F7 3.3
buffer-set-file-name Ctl-X Ctl-F 3.3
buffer-set-file-name Sh-F7 3.3
buffer-set-name Esc Ctl-N 3.3
buffer-size-lock Ctl-X Ctl-L 3.3
buffers-display Ctl-F1 3.3
buffers-display Ctl-X Ctl-B 3.3
change-buffer Ctl-F2 3.3
change-buffer Ctl-X B 3.3
change-to-next-buffer Ctl-F4 3.3
change-to-next-buffer Esc + 3.3
change-to-prev-buffer Ctl-F5 3.3
change-to-prev-buffer Esc - 3.3
change-window-back Ctl-PageUp 3.5
change-window-back Ctl-X P 3.5
change-window-forw Ctl-PageDown 3.5
change-window-forw Ctl-X N 3.5
compare Esc C 3.12
copy-mark-to-cursor Esc W 3.6
copy-mark-to-cursor F7 3.6
delete-back-char Backspace 3.6
delete-back-char Rubout 3.6
delete-back-unit Esc Ctl-K 3.6
delete-back-unit Esc Rubout 3.6
delete-forw-char Ctl-D 3.6
delete-forw-char Delete 3.6
delete-forw-unit Esc D 3.6
delete-mark-to-cursor Ctl-W 3.6
delete-mark-to-cursor F8 3.6
display-ascii Esc Ctl-A 3.5
display-binary Esc Ctl-B 3.5
display-byte-shift Ctl-A 3.5
display-bytes Esc 1 3.5
display-decimal Esc Ctl-D 3.5
display-double-words Esc 4 3.5
display-ebcdic Esc Ctl-E 3.5
display-hex Esc Backspace 3.5
display-octal Esc Ctl-O 3.5
display-swap-order Ctl-E 3.5
display-words Esc 2 3.5


BEAV User Manual

extended-command Esc X 3.12
file-read Ctl-X Ctl-R 3.4
file-read Sh-F2 3.4
file-save Ctl-X Ctl-S 3.4
file-save Sh-F3 3.4
file-view Ctl-X V 3.4
file-visit Ctl-X Ctl-V 3.4
file-visit Sh-F4 3.4
file-visit-split Esc U 3.4
file-write Ctl-X Ctl-W 3.4
file-write Sh-F5 3.4
help Esc ? 3.1
help F1 3.1
insert-file Ctl-F8 3.4
insert-file Ctl-X Tab 3.4
insert-file Sh-F8 3.4
insert-literally Ctl-Q 3.6
insert-literally Esc Q 3.6
insert-toggle Ctl-X Ctl-A 3.6
insert-toggle Insert 3.6
insert-unit Ctl-X I 3.6
kill-buffer Ctl-F3 3.3
kill-buffer Ctl-X K 3.3
macro-end Ctl-X ) 3.10
macro-execute Ctl-X E 3.10
macro-start Ctl-X ( 3.10
mark-set Esc . 3.2
mark-set F2 3.2
move-back-char Ctl-B 3.2
move-back-char West 3.2
move-back-line Ctl-P 3.2
move-back-line North 3.2
move-back-page Esc V 3.2
move-back-page PageDown 3.2
move-back-unit Ctl-West 3.2
move-back-unit Esc B 3.2
move-forw-char Ctl-F 3.2
move-forw-char East 3.2
move-forw-line Ctl-N 3.2
move-forw-line South 3.2
move-forw-page Ctl-V 3.2
move-forw-page PageUp 3.2
move-forw-unit Ctl-East 3.2
move-forw-unit Esc F 3.2
move-forw-unit Sh-Tab 3.2
move-to-beginning Esc < 3.2
move-to-beginning Home 3.2
move-to-buffer-split Esc G 3.2
move-to-byte Ctl-X G 3.2
move-to-byte F9 3.2
move-to-end End 3.2
move-to-end Esc > 3.2
move-window-down Ctl-X Ctl-N 3.2
move-window-down Ctl-Z 3.2


BEAV User Manual

move-window-up Ctl-X Ctl-P 3.2
move-window-up Esc Z 3.2
n-way-combine Esc Ctl-F 3.12
n-way-split Esc Ctl-S 3.12
print-mark-to-cursor Ctl-Print 3.9
print-mark-to-cursor Esc P 3.9
quit-no-save Ctl-C 3.8
quit-no-save Ctl-F10 3.8
quit-no-save Ctl-X Ctl-C 3.8
quit-no-save Sh-F10 3.8
quit-save-all Ctl-F9 3.8
quit-save-all Ctl-X Ctl-E 3.8
quit-save-all Sh-F9 3.8
recall-srch-string Ctl-R 3.7
refresh-screen Ctl-L 3.12
replace Esc % 3.7
replace F5 3.7
save-all-buffers Ctl-X Return 3.4
save-all-buffers Sh-F6 3.4
save-mark-to-cursor Esc O 3.3
search-again Esc T 3.7
search-again F4 3.7
search-back Esc R 3.7
search-forw Esc S 3.7
search-forw F3 3.7
show-position Ctl-X = 3.2
show-save-buf Esc Ctl-W 3.3
show-version Esc Ctl-V 3.12
spawn-shell Ctl-X C 3.12
swap-cursor-and-mark Ctl-X Ctl-X 3.2
unit-twiddle Ctl-T 3.6
window-delete Ctl-X 0 3.5
window-enlarge Ctl-X Z 3.5
window-link Esc L 3.2
window-reposition Esc ! 3.5
window-shrink Ctl-X Ctl-Z 3.5
window-single Ctl-X 1 3.5
window-split Ctl-X 2 3.5
yank Ctl-Y 3.6
yank F6 3.6
yank-buffer Ctl-F6 3.3
yank-buffer Esc Y 3.3


BEAV User Manual

5. Alphabetical list of commands by key binding

Command Key Binding Manual Section
------- ----------- --------------
delete-back-char Backspace 3.6
display-byte-shift Ctl-A 3.5
move-back-char Ctl-B 3.2
quit-no-save Ctl-C 3.8
delete-forw-char Ctl-D 3.6
display-swap-order Ctl-E 3.5
move-forw-unit Ctl-East 3.2
move-forw-char Ctl-F 3.2
buffers-display Ctl-F1 3.3
quit-no-save Ctl-F10 3.8
change-buffer Ctl-F2 3.3
kill-buffer Ctl-F3 3.3
change-to-next-buffer Ctl-F4 3.3
change-to-prev-buffer Ctl-F5 3.3
yank-buffer Ctl-F6 3.3
buffer-set-file-name Ctl-F7 3.3
insert-file Ctl-F8 3.4
quit-save-all Ctl-F9 3.8
abort-cmd Ctl-G 3.12
refresh-screen Ctl-L 3.12
move-forw-line Ctl-N 3.2
move-back-line Ctl-P 3.2
change-window-forw Ctl-PageDown 3.5
change-window-back Ctl-PageUp 3.5
print-mark-to-cursor Ctl-Print 3.9
insert-literally Ctl-Q 3.6
recall-srch-string Ctl-R 3.7
unit-twiddle Ctl-T 3.6
move-forw-page Ctl-V 3.2
delete-mark-to-cursor Ctl-W 3.6
move-back-unit Ctl-West 3.2
macro-start Ctl-X ( 3.10
macro-end Ctl-X ) 3.10
window-delete Ctl-X 0 3.5
window-single Ctl-X 1 3.5
window-split Ctl-X 2 3.5
show-position Ctl-X = 3.2
binding-for-key Ctl-X ? 3.11
change-buffer Ctl-X B 3.3
spawn-shell Ctl-X C 3.12
insert-toggle Ctl-X Ctl-A 3.6
buffers-display Ctl-X Ctl-B 3.3
quit-no-save Ctl-X Ctl-C 3.8
quit-save-all Ctl-X Ctl-E 3.8
buffer-set-file-name Ctl-X Ctl-F 3.3
abort-cmd Ctl-X Ctl-G 3.12
buffer-size-lock Ctl-X Ctl-L 3.3
move-window-down Ctl-X Ctl-N 3.2
move-window-up Ctl-X Ctl-P 3.2
file-read Ctl-X Ctl-R 3.4


BEAV User Manual

file-save Ctl-X Ctl-S 3.4
file-visit Ctl-X Ctl-V 3.4
file-write Ctl-X Ctl-W 3.4
swap-cursor-and-mark Ctl-X Ctl_X 3.2
window-shrink Ctl-X Ctl-Z 3.5
macro-execute Ctl-X E 3.10
move-to-byte Ctl-X G 3.2
insert-unit Ctl-X I 3.6
kill-buffer Ctl-X K 3.3
bindings-load Ctl-X L 3.11
change-window-forw Ctl-X N 3.5
change-window-back Ctl-X P 3.5
save-all-buffers Ctl-X Return 3.4
insert-file Ctl-X Tab 3.4
file-view Ctl-X V 3.4
window-enlarge Ctl-X Z 3.5
yank Ctl-Y 3.6
move-window-down Ctl-Z 3.2
delete-forw-char Delete 3.6
move-forw-char East 3.2
move-to-end End 3.2
window-reposition Esc ! 3.5
replace Esc % 3.7
change-to-next-buffer Esc + 3.3
change-to-prev-buffer Esc - 3.3
mark-set Esc . 3.2
display-bytes Esc 1 3.5
display-words Esc 2 3.5
display-double-words Esc 4 3.5
move-to-beginning Esc < 3.2
move-to-end Esc > 3.2
help Esc ? 3.1
auto-save Esc A 3.12
move-back-unit Esc B 3.2
display-hex Esc Backspace 3.5
Compare Esc C 3.12
display-ascii Esc Ctl-A 3.5
display-binary Esc Ctl-B 3.5
display-decimal Esc Ctl-D 3.5
display-ebcdic Esc Ctl-E 3.5
n-way-combine Esc Ctl-F 3.12
abort-cmd Esc Ctl-G 3.12
delete-back-unit Esc Ctl-K 3.6
buffer-set-name Esc Ctl-N 3.3
display-octal Esc Ctl-O 3.5
n-way-split Esc Ctl-S 3.12
show-version Esc Ctl-V 3.12
show-save-buf Esc Ctl-W 3.3
delete-forw-unit Esc D 3.6
move-forw-unit Esc F 3.2
move-to-buffer-split Esc G 3.2
bind-to-key Esc K 3.11
window-link Esc L 3.2
save-mark-to-cursor Esc O 3.3


BEAV User Manual

print-mark-to-cursor Esc P 3.9
insert-literally Esc Q 3.6
search-back Esc R 3.7
delete-back-unit Esc Rubout 3.6
search-forw Esc S 3.7
search-again Esc T 3.7
file-visit-split Esc U 3.4
move-back-page Esc V 3.2
copy-mark-to-cursor Esc W 3.6
extended-command Esc X 3.12
yank-buffer Esc Y 3.3
move-window-up Esc Z 3.2
help F1 3.1
abort-cmd F10 3.12
mark-set F2 3.2
search-forw F3 3.7
search-again F4 3.7
replace F5 3.7
yank F6 3.6
copy-mark-to-cursor F7 3.6
delete-mark-to-cursor F8 3.6
move-to-byte F9 3.2
move-to-beginning Home 3.2
insert-toggle Insert 3.6
move-back-line North 3.2
move-back-page PageDown 3.2
move-forw-page PageUp 3.2
delete-back-char Rubout 3.6
binding-for-key Sh-F1 3.11
quit-no-save Sh-F10 3.8
file-read Sh-F2 3.4
file-save Sh-F3 3.4
file-visit Sh-F4 3.4
file-write Sh-F5 3.4
save-all-buffers Sh-F6 3.4
buffer-set-file-name Sh-F7 3.3
insert-file Sh-F8 3.4
quit-save-all Sh-F9 3.8
move-forw-unit Sh-Tab 3.2
move-forw-line South 3.2
move-back-char West 3.2


BEAV User Manual

6. Release notes

Version 1.20 (3/10/91) of BEAV contains the following fixes
and enhancements;

* Under unix files are created with read/write

* Fixed the bug in the terminal I/O routine that caused
BEAV to spin rather than give up control when waiting for a

* Added the ANSI #define that was missing for MSDOS.

* Changed the D16 #define to a unsigned short.

* Called ttclose on error exit.

* Check and limit ncol and nrow to the actual screen
array size.

* Add the ability to load key bindings from a file
automatically under MSDOS and unix.

* Add delete current window command.

* Support VT100 type function keys.

Version 1.30 (7/1/91) of BEAV contains the following fixes
and enhancements;

* Under MSDOS and 16 bit UNIX systems the kill or copy
region could not be over 64K bytes. This limit has been

* The save buffer can be made visible with the Esc Ctl-
W command. The save buffer is not editable.

* All memory allocation errors now pause and ask for
conformation before continuing. In previous releases only
an error message was printed. Since an allocation error
generally means data loss, I have forced the user to
respond. Memory allocation errors are not otherwise fatal
to BEAV, they are probably fatal to the user's data. The
decision is left to the user with the appropriate warning.

* Two commands have been added to aid in working with
PROM files; n-way-split (Esc Ctl-S) and n-way-combine (Esc

* The speed of the delete-mark-to-cursor (Ctl-W)
command has been greatly improved.


BEAV User Manual

* All commands that can potentially take a lot of time
can be stopped by pressing Ctl-G.

Version 1.31 (11/2/91) of BEAV contains the following

* A serious bug that causes a crash on systems that
trapped the use of dereferenced pointers has been fixed.

* Beav now names the backup file properly under unix.
Previously; if a dot file (.) was edited, the
backup file was given a garbage name. Now, a backup file
simply has ".bak" appended to the file name.

* You can use the buffers-display (Ctl-X, Ctl-B)
command to; go to, kill, or save a buffer.

* A compile flag for DEC ULTRA was created and a
makeable is included in this release (makefile.utx).

* When a large region was deleted the offset value was
displayed wrong, this is now fixed.

* A bug in the parse_f_name that trashed a variable is
now fixed.

* Regions of never used code have been deleted.

* Under UNIX the file permissions are maintained
correctly when the file is saved.

* A number of un-niceities that lint reported have been

Version 1.32 (11/8/91) of BEAV contains the following

* BEAV will now compile and run on the Amiga computer.


BEAV User Manual

7. Source Availability

The source and MSDOS executable BEAV has been posted on
news to comp.sources.misc.

The MSDOS executable has been posted to the news group. This is archived at SIMTEL20
in PD1:BEAV132.ZIP.

If anyone does not have access to usenet, I will mail a
copy of the source on floppy for $20.00 copying charge. The
floppies can be in MSDOS file format or UNIX tar format. I can
also supply either QIC-24, QIC-120, QIC-150, or 9 track reel to
reel tape. The price for the tape will include the cost of the


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