HomeAppendixAppendixThe scancode

16.1 ASCII table

he ASCII-code (American Standard Code for Information Interchange) is a 7-bit code, and thus comprises 128 characters. The eighth bit can either be set to zero, or used for extensions (characters above 128 however are no longer standardized) or for parity. In the latter case it would make all (2n+1) bit-errors recognizable.

The code is defined as follows:

Hex Dec ASCII Hex Dec ASCII Hex Dec ASCII Hex Dec ASCII
00 0 NUL 20 32 SPACE 40 64 @ 60 96 '
01 1 SOH 21 33 ! 41 65 A 61 97 a
02 2 STX 22 34 " 42 66 B 62 98 b
03 3 ETX 23 35 # 43 67 C 63 99 c
04 4 EOT 24 36 $ 44 68 D 64 100 d
05 5 ENQ 25 37 % 45 69 E 65 101 e
06 6 ACK 26 38 & 46 70 F 66 102 f
07 7 BEL 27 39 ' 47 71 G 67 103 g
08 8 BS 28 40 ( 48 72 H 68 104 h
09 9 HT 29 41 ) 49 73 I 69 105 i
0A 10 LF 2A 42 * 4A 74 J 6A 106 j
0B 11 VT 2B 43 + 4B 75 K 6B 107 k
0C 12 FF 2C 44 , 4C 76 L 6C 108 l
0D 13 CR 2D 45 - 4D 77 M 6D 109 m
0E 14 SO 2E 46 . 4E 78 N 6E 110 n
0F 15 SI 2F 47 / 4F 79 O 6F 111 o
10 16 DLE 30 48 0 50 80 P 70 112 p
11 17 DC1 31 49 1 51 81 Q 71 113 q
12 18 DC2 32 50 2 52 82 R 72 114 r
13 19 DC3 33 51 3 53 83 S 73 115 s
14 20 DC4 34 52 4 54 84 T 74 116 t
15 21 NAK 35 53 5 55 85 U 75 117 u
16 22 SYN 36 54 6 56 86 V 76 118 v
17 23 ETB 37 55 7 57 87 W 77 119 w
18 24 CAN 38 56 8 58 88 X 78 120 x
19 25 EM 39 57 9 59 89 Y 79 121 y
1A 26 SUB 3A 58 : 5A 90 Z 7A 122 z
1B 27 ESC 3B 59 ; 5B 91 [ 7B 123 {
1C 28 FS 3C 60 < 5C 92 \ 7C 124 |
1D 29 GS 3D 61 = 5D 93 ] 7D 125 }
1E 30 RS 3E 62 > 5E 94 ^ 7E 126  
1F 31 US 3F 63 ? 5F 95 _ 7F 127 DEL()

Note: Further important codings are the BCD code, EBCIDIC, UNICODE, as well as ISO-Latin (an 8-bit font with european accented characters etc.). The characters between 32 and 127 of the ASCII-code correspond to the definitions of the Atari system character set.

See also: Scancode table


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