Hardware Set
7-bit ASCII Character ---------- -------- 011 TAB (Horizontal Tab) 012 LF (Line Feed) 015 CR (Carriage Return) 040 SP (Space) 041 ! (exclamation mark) 042 Degree 043 # (number sign) 044 $ (dollar sign) 045 % (percent) 046 & (ampersand) 047 ' (single quote) 050 ( (left/open parenthesis) 051 ) (right/closing parenth.) 052 * (asterisk) 053 + (plus) 054 , (comma) 055 - (minus or dash) 056 . (dot) 057 / (forward slash) 060 0 061 1 062 2 063 3 064 4 065 5 066 6 067 7 070 8 071 9 072 : (colon) 073 ; (semi-colon) 074 < (less than) 075 = (equal sign) 076 > (greater than) 077 " (question mark) 100 @ (AT symbol) 101 A 102 B 103 C 104 D 105 E 106 F 107 G 110 H 111 I 112 J 113 K 114 L 115 M 116 N 117 O 120 P 121 Q 122 R 123 S 124 T 125 U 126 V 127 W 130 X 131 Y 132 Z 133 [ (left/opening bracket) 134 \ (back slash) 135 ] (right/closing bracket) 136 ↑ (up arrow) 137 ← (left arrow) 175 ALT MODE
PDP15 IOPS ASCII CHARACTER SET
Listed below are the remaining ASCII character codes interpreted by the ADVANCED Monitor and System Programs as meaningful data input or as control characters.
000 NUL (Null char.) 001 SOH (Start of Header) 003 ETX (End of Text) 004 EOT (End of Transmission) 007 BEL (Bell) 013 VT (Vertical Tab) 014 FF (Form Feed) 020 DLE (Data Link Escape) 021 DC1 (Device Control 1) 022 DC2 (Device Control 2) 023 DC3 (Device Control 3) 024 DC4 (Device Control 4) 025 NAK (Negative Acknowledgment) 030 CAN (Cancel) 032 SUB (Substitute) 033 ESC (Escape) 176 ESC (Escape) 177 DEL (Delete)
Codes 33, 175, 176 are interpreted as ESC (ALT Mode) and are converted on input to code 175 by IOPS handlers.
Characters from 000 to 037 are input by pressing the Control (CTRL) key and the corresponding key in the range 100 to 137.
