* Symbols for the non-printable ASCII characters.
* Source: www.asciitable.com

NUL	equ	0
SOH	equ	1
STX	equ	2
ETX	equ	3
EOT	equ	4
ENQ	equ	5
ACK	equ	6
BEL	equ	7
BS	equ	8
TAB	equ	9
LF	equ	10
VT	equ	11
FF	equ	12
CR	equ	13
SO	equ	14
SI	equ	15
DLE	equ	16
DC1	equ	17
DC2	equ	18
DC3	equ	19
DC4	equ	20
NAK	equ	21
SYN	equ	22
ETB	equ	23
CAN	equ	24
EM	equ	25
SUB	equ	26
ESC	equ	27
FS	equ	28
GS	equ	29
RS	equ	30
US	equ	31
DEL	equ	127