This operation takes a string value and maps it to a real value.  The first character in the string is used to lookup a real value from the table below:
| Character | Real Value | 
| ■ | 0 | 
| <space> | 32 | 
| ! | 33 | 
| \ | 34 | 
| # | 35 | 
| $ | 36 | 
| % | 37 | 
| & | 38 | 
| ' | 39 | 
| ( | 40 | 
| ) | 41 | 
| * | 42 | 
| + | 43 | 
| , | 44 | 
| - | 45 | 
| . | 46 | 
| / | 47 | 
| 0 | 48 | 
| 1 | 49 | 
| 2 | 50 | 
| 3 | 51 | 
| 4 | 52 | 
| 5 | 53 | 
| 6 | 54 | 
| 7 | 55 | 
| 8 | 56 | 
| 9 | 57 | 
| : | 58 | 
| ; | 59 | 
| < | 60 | 
| = | 61 | 
| > | 62 | 
| ? | 63 | 
| @ | 64 | 
| A | 65 | 
| B | 66 | 
| C | 67 | 
| D | 68 | 
| E | 69 | 
| F | 70 | 
| G | 71 | 
| H | 72 | 
| I | 73 | 
| J | 74 | 
| K | 75 | 
| L | 76 | 
| M | 77 | 
| N | 78 | 
| O | 79 | 
| P | 80 | 
| Q | 81 | 
| R | 82 | 
| S | 83 | 
| T | 84 | 
| U | 85 | 
| V | 86 | 
| W | 87 | 
| X | 88 | 
| Y | 89 | 
| Z | 90 | 
| [ | 91 | 
| \ | 92 | 
| ] | 93 | 
| ^ | 94 | 
| _ | 95 | 
| ` | 96 | 
| a | 97 | 
| b | 98 | 
| c | 99 | 
| d | 100 | 
| e | 101 | 
| f | 102 | 
| g | 103 | 
| h | 104 | 
| i | 105 | 
| j | 106 | 
| k | 107 | 
| l | 108 | 
| m | 109 | 
| n | 110 | 
| o | 111 | 
| p | 112 | 
| q | 113 | 
| r | 114 | 
| s | 115 | 
| t | 116 | 
| u | 117 | 
| v | 118 | 
| w | 119 | 
| x | 120 | 
| y | 121 | 
| z | 122 | 
| { | 123 | 
| | | 124 | 
| } | 125 | 
| ~ | 126 | 
| ▓ | 127 | 
| ÷ | 129 | 
| × | 130 | 
| √ | 131 | 
| ∫ | 132 | 
| ∑ | 133 | 
| ▶ | 134 | 
| π | 135 | 
| ∂ | 136 | 
| ≤ | 137 | 
| ≥ | 138 | 
| ≠ | 139 | 
| ∝ | 140 | 
| → | 141 | 
| ← | 142 | 
| μ | 143 | 
| ° | 145 | 
| ≪ | 146 | 
| ≫ | 147 |