HP 3000 Manuals HP 3000 Manuals
Appendix B ASCII Character Codes
Table B-1 maps each ASCII character to its decimal and hexadecimal
code, its ASCII symbol, and its name. Each code is stored in eight bits;
thus the decimal codes are between 0 and 255, and the hexadecimal codes
are between 0 and FF.
Table B-1. ASCII Character Codes
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 0 | 00 | NUL | Null |
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| 1 | 01 | SOH | Start of heading |
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| 2 | 02 | STX | Start of text |
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| 3 | 03 | EXT | End of text |
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| 4 | 04 | EOT | End of transmission |
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| 5 | 05 | ENQ | Enquiry |
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| 6 | 06 | ACK | Acknowledge |
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| 7 | 07 | BEL | Bell |
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| 8 | 08 | BS | Backspace |
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| 9 | 09 | HT | Horizontal tab |
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| 10 | 0A | LF | Line feed |
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| 11 | 0B | VT | Vertical tab |
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| 12 | 0C | FF | Form feed |
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| 13 | 0D | CR | Carriage return |
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| 14 | 0E | SO | Shift out |
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Table B-1. ASCII Character Codes (continued)
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 15 | 0F | SI | Shift in |
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| 16 | 10 | DLE | Data link escape |
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| 17 | 11 | DC1 | Device control 1 |
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| 18 | 12 | DC2 | Device control 2 |
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| 19 | 13 | DC3 | Device control 3 |
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| 20 | 14 | DC4 | Device control 4 |
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| 21 | 15 | NAK | Negative acknowledgement |
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| 22 | 16 | SYN | Synchronous idle |
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| 23 | 17 | ETB | End of transmission block |
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| 24 | 18 | CAN | Cancel |
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| 25 | 19 | EM | End of medium |
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| 26 | 1A | SUB | Substitute |
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| 27 | 1B | ESC | Escape |
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| 28 | 1C | FS | File separator |
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| 29 | 1D | GS | Group separator |
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| 30 | 1E | RS | Record separator |
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| 31 | 1F | US | Unit separator |
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| 32 | 20 | SP | Space |
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| 33 | 21 | ! | Exclamation mark |
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| 34 | 22 | " | Quotation mark |
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| 35 | 23 | # | Number sign |
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Table B-1. ASCII Character Codes (continued)
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 36 | 24 | $ | Dollar sign |
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| 37 | 25 | % | Percent sign |
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| 38 | 26 | & | Ampersand |
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| 39 | 27 | ' | Apostrophe |
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| 40 | 28 | ( | Left parenthesis |
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| 41 | 29 | ) | Right parenthesis |
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| 42 | 2A | * | Asterisk |
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| 43 | 2B | + | Plus sign |
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| 44 | 2C | , | Comma |
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| 45 | 2D | - | Minus sign |
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| 46 | 2E | . | Full stop |
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| 47 | 2F | / | Solidus |
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| 48 | 30 | 0 | Zero |
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| 49 | 31 | 1 | One |
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| 50 | 32 | 2 | Two |
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| 51 | 33 | 3 | Three |
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| 52 | 34 | 4 | Four |
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| 53 | 35 | 5 | Five |
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| 54 | 36 | 6 | Six |
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| 55 | 37 | 7 | Seven |
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| 56 | 38 | 8 | Eight |
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Table B-1. ASCII Character Codes (continued)
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 57 | 39 | 9 | Nine |
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| 58 | 3A | : | Colon |
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| 59 | 3B | ; | Semicolon |
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| 60 | 3C | < | Less-than sign |
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| 61 | 3D | = | Equal sign |
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| 62 | 3E | > | Greater-than sign |
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| 63 | 3F | ? | Question mark |
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| 64 | 40 | @ | Commercial "at" sign |
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| 65 | 41 | A | Uppercase A |
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| 66 | 42 | B | Uppercase B |
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| 67 | 43 | C | Uppercase C |
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| 68 | 44 | D | Uppercase D |
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| 69 | 45 | E | Uppercase E |
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| 70 | 46 | F | Uppercase F |
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| 71 | 47 | G | Uppercase G |
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| 72 | 48 | H | Uppercase H |
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| 73 | 49 | I | Uppercase I |
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| 74 | 4A | J | Uppercase J |
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| 75 | 4B | K | Uppercase K |
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| 76 | 4C | L | Uppercase L |
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| 77 | 4D | M | Uppercase M |
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Table B-1. ASCII Character Codes (continued)
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 78 | 4E | N | Uppercase N |
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| 79 | 4F | O | Uppercase O |
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| 80 | 50 | P | Uppercase P |
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| 81 | 51 | Q | Uppercase Q |
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| 82 | 52 | R | Uppercase R |
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| 83 | 53 | S | Uppercase S |
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| 84 | 54 | T | Uppercase T |
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| 85 | 55 | U | Uppercase U |
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| 86 | 56 | V | Uppercase V |
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| 87 | 57 | W | Uppercase W |
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| 88 | 58 | X | Uppercase X |
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| 89 | 59 | Y | Uppercase Y |
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| 90 | 5A | Z | Uppercase Z |
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| 91 | 5B | [ | Left bracket |
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| 92 | 5C | \ | Reverse solidus |
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| 93 | 5D | ] | Right bracket |
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| 94 | 5E | ^ | Circumflex accent |
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| 95 | 5F | _ | Underline |
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| 96 | 60 | ` | Grave accent |
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| 97 | 61 | a | Lowercase a |
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| 98 | 62 | b | Lowercase b |
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Table B-1. ASCII Character Codes (continued)
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 99 | 63 | c | Lowercase c |
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| 100 | 64 | d | Lowercase d |
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| 101 | 65 | e | Lowercase e |
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| 102 | 66 | f | Lowercase f |
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| 103 | 67 | g | Lowercase g |
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| 104 | 68 | h | Lowercase h |
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| 105 | 69 | i | Lowercase i |
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| 106 | 6A | j | Lowercase j |
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| 107 | 68 | k | Lowercase k |
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| 108 | 6C | l | Lowercase l |
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| 109 | 6D | m | Lowercase m |
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| 110 | 6E | n | Lowercase n |
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| 111 | 6F | o | Lowercase o |
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| 112 | 70 | p | Lowercase p |
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| 113 | 71 | q | Lowercase q |
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| 114 | 72 | r | Lowercase r |
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| 115 | 73 | s | Lowercase s |
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| 116 | 74 | t | Lowercase t |
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| 117 | 75 | u | Lowercase u |
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| 118 | 76 | v | Lowercase v |
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| 119 | 77 | w | Lowercase w |
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Table B-1. ASCII Character Codes (continued)
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| Decimal | Hexadecimal | ASCII | Name |
| Code | Code | Symbol | |
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| 120 | 78 | x | Lowercase x |
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| 121 | 79 | y | Lowercase y |
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| 122 | 7A | z | Lowercase z |
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| 123 | 7B | { | Left brace |
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| 124 | 7C | | | Vertical line |
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| 125 | 7D | } | Right brace |
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| 126 | 7E | ~ | Tilde |
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| 127 | 7F | DEL | Delete |
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