nolist
;LAST UPDATED:	11 JUN 83	-- no version number on libraries.
;REASON FOR UPDATE:	To bring usage of control character names into
;		general uniform structure, facilitating updates.	aep
;
; LIBRARY NAME:		ASCII.EQU, a compilation of ANSI control characters.
;
; The "C0" (7 bit) ASCII control codes and other special characters:
;	DC = Device Control function, should not be text data.
;	CC = Communications Control function, definitely should not be
;		transmitted without full knowledge of its usage.
;	FE = Format Effector function, alters the display format of
;		transmitted text, fairly safe for external commumication.
;	IC = Information Separator, acts in much the same manner as the
;		"space" character -- it takes up a variable amount of
;		of space in a display but generally has no effect on a
;		communications hookup.  More complete definitions are
;		usually context defined, but the larger the numeric value
;		of a separator, the larger it's significance should be.
;
;	The above comes to you courtesy of the ANSI standards manual on
;	ASCII -- X3.4-1979 and its extensions: X3.41-1977 and X3.64-1979.
;
; NOTE:	Those characters having a double asterisk in their function ID field
;	are strongly recommended by ANSI to not be used for any purpose except
;	those defined in various commumication protocols.  If you ever hope
;	to get connected into any large network of computers or data bases,
;	there is more than fair chance that these rules will be strictly
;	adheared to.
;
NULL	EQU	00h	; DC**	;Null, tape feed.
SOH	EQU	01h	;CC **	;Start of heading.
STX	EQU	02h	;CC **	;Start of text.
ETX	EQU	03h	;CC **	;End of text.
EOT	EQU	04h	;CC **	;End of transmission.
ENQ	EQU	05h	;CC **	;Enquiry, also WRU.
ACK	EQU	06h	;CC **	;Acknowledge, also RU.
BEL	EQU	07h	;	;Rings bell.
BS	EQU	08h	;FE	;Backspace, also FEB.
HT	EQU	09h	;FE	;Horizontal tab.
LF	EQU	0Ah	;FE	;Line feed.
VT	EQU	0Bh	;FE	;Vertical tab.
FF	EQU	0Ch	;FE	;Form feed to top of new page.
CR	EQU	0Dh	;FE	;Carriage return to beginning of line.
sSO	EQU	0Eh	;   **	;Shift out.
sSI	EQU	0Fh	;   **	;Shift in.
DLE	EQU	10h	;CC **	;Data line escape.
DC1	EQU	11h	; DC	;Device control 1, (XON).
DC2	EQU	12h	; DC	;Device control 2.
DC3	EQU	13h	; DC	;Device control 3, (XOFF).
DC4	EQU	14h	; DC	;Device control 4.
NAK	EQU	15h	;CC **	;Negative acknowledge, also ERR (error).
SYN	EQU	16h	;CC **	;Synchronous idle (SYNC).
ETB	EQU	17h	;CC **	;End of transmission block.
CAN	EQU	18h	;   **	;Cancel current escape sequence.
EM	EQU	19h	;	;End of medium.
SUBs	EQU	1Ah	;   **	;Substitute.
ESC	EQU	1Bh	;   **	;Escape.
iFS	EQU	1Ch	;IS	;File separator.
iGS	EQU	1Dh	;IS	;Group separator.
iRS	EQU	1Eh	;IS	;Record separator.
iUS	EQU	1Fh	;IS	;Unit separator.
SPACE	EQU	20h	;IS	;Space character.
DEL	EQU	7Fh	; DC	;Rubout or Delete character, also a null.
;
; Special CP/M characters:
CNTLC	EQU	03h	;Control C (^C)
BELL	EQU	07h	;Rings bell or beeper
XON	EQU	11h	;(DC1) Control to turn on transmission
XOFF	EQU	13h	;(DC3) Control to turn off transmission
EOF	EQU	1Ah	;End of file marker (indicates text end).
;
;========= end of common ANSI control codes ==========
	list