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Charsets based on CDC

Control Data's Display Code

This code is not available in recode, but repeated here for reference. This is a 6-bit code used on CDC mainframes.

Octal display code to graphic       Octal display code to octal ASCII

00  :    20  P    40  5   60  #     00 072  20 120  40 065  60 043
01  A    21  Q    41  6   61  [     01 101  21 121  41 066  61 133
02  B    22  R    42  7   62  ]     02 102  22 122  42 067  62 135
03  C    23  S    43  8   63  %     03 103  23 123  43 070  63 045
04  D    24  T    44  9   64  "     04 104  24 124  44 071  64 042
05  E    25  U    45  +   65  _     05 105  25 125  45 053  65 137
06  F    26  V    46  -   66  !     06 106  26 126  46 055  66 041
07  G    27  W    47  *   67  &     07 107  27 127  47 052  67 046
10  H    30  X    50  /   70  '     10 110  30 130  50 057  70 047
11  I    31  Y    51  (   71  ?     11 111  31 131  51 050  71 077
12  J    32  Z    52  )   72  <     12 112  32 132  52 051  72 074
13  K    33  0    53  $   73  >     13 113  33 060  53 044  73 076
14  L    34  1    54  =   74  @     14 114  34 061  54 075  74 100
15  M    35  2    55      75  \     15 115  35 062  55 040  75 134
16  N    36  3    56  ,   76  ^     16 116  36 063  56 054  76 136
17  O    37  4    57  .   77  ;     17 117  37 064  57 056  77 073

ASCII 6/12 from NOS

This charset is available in recode under the name CDC-NOS, with NOS as an acceptable alias.

This is one of the charset in use on CDC Cyber NOS systems to represent ASCII, sometimes named NOS 6/12 code for coding ASCII. This code is also known as caret ASCII. It is based on a six bits character set in which small letters and control characters are coded using a ^ escape and, sometimes, a @ escape.

The routines given here presume that the six bits code is already expressed in ASCII by the communication channel, with embedded ASCII ^ and @ escapes.

Here is a table showing which characters are being used to encode each ASCII character.

000  ^5  020  ^#  040     060  0  100 @A  120  P  140  @G  160  ^P
001  ^6  021  ^[  041  !  061  1  101  A  121  Q  141  ^A  161  ^Q
002  ^7  022  ^]  042  "  062  2  102  B  122  R  142  ^B  162  ^R
003  ^8  023  ^%  043  #  063  3  103  C  123  S  143  ^C  163  ^S
004  ^9  024  ^"  044  $  064  4  104  D  124  T  144  ^D  164  ^T
005  ^+  025  ^_  045  %  065  5  105  E  125  U  145  ^E  165  ^U
006  ^-  026  ^!  046  &  066  6  106  F  126  V  146  ^F  166  ^V
007  ^*  027  ^&  047  '  067  7  107  G  127  W  147  ^G  167  ^W
010  ^/  030  ^'  050  (  070  8  110  H  130  X  150  ^H  170  ^X
011  ^(  031  ^?  051  )  071  9  111  I  131  Y  151  ^I  171  ^Y
012  ^)  032  ^<  052  *  072 @D  112  J  132  Z  152  ^J  172  ^Z
013  ^$  033  ^>  053  +  073  ;  113  K  133  [  153  ^K  173  ^0
014  ^=  034  ^@  054  ,  074  <  114  L  134  \  154  ^L  174  ^1
015  ^   035  ^\  055  -  075  =  115  M  135  ]  155  ^M  175  ^2
016  ^,  036  ^^  056  .  076  >  116  N  136 @B  156  ^N  176  ^3
017  ^.  037  ^;  057  /  077  ?  117  O  137  _  157  ^O  177  ^4

ASCII "bang bang"

This charset is available in recode under the name Bang-Bang.

This is the local code in use on Cybers at Universite de Montreal, which grave and serious people there prefer to name ASCII code display. This code is also known as Bang-bang. It is based on a six bits character set in which capitals, French diacritics and a few others are coded using an ! escape followed by a single character, and control characters using a double ! escape followed by a single character.

The routines given here presume that the six bits code is already expressed in ASCII by the communication channel, with embedded ASCII ! escapes.

Here is a table showing which characters are being used to encode each ASCII character.

000 !!@  020 !!P  040    060 0  100 @   120 !P  140 !@ 160 P
001 !!A  021 !!Q  041 !" 061 1  101 !A  121 !Q  141 A  161 Q
002 !!B  022 !!R  042 "  062 2  102 !B  122 !R  142 B  162 R
003 !!C  023 !!S  043 #  063 3  103 !C  123 !S  143 C  163 S
004 !!D  024 !!T  044 $  064 4  104 !D  124 !T  144 D  164 T
005 !!E  025 !!U  045 %  065 5  105 !E  125 !U  145 E  165 U
006 !!F  026 !!V  046 &  066 6  106 !F  126 !V  146 F  166 V
007 !!G  027 !!W  047 '  067 7  107 !G  127 !W  147 G  167 W
010 !!H  030 !!X  050 (  070 8  110 !H  130 !X  150 H  170 X
011 !!I  031 !!Y  051 )  071 9  111 !I  131 !Y  151 I  171 Y
012 !!J  032 !!Z  052 *  072 :  112 !J  132 !Z  152 J  172 Z
013 !!K  033 !![  053 +  073 ;  113 !K  133 [   153 K  173 ![
014 !!L  034 !!\  054 ,  074 <  114 !L  134 \   154 L  174 !\
015 !!M  035 !!]  055 -  075 =  115 !M  135 ]   155 M  175 !]
016 !!N  036 !!^  056 .  076 >  116 !N  136 ^   156 N  176 !^
017 !!O  037 !!_  057 /  077 ?  117 !O  137 _   157 O  177 !_

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