| 44D9 | LoneObject | 1 if a lone-object was given last input |
| 45AA | NounDataSize | Number of bytes in noun's data area |
| 45AB | DecodeEmpty | 1 if something was decoded from input |
| 45AC:45AD | NounData | Pointer to noun data |
| 465A:467A | InputBuffer | 32 byte input buffer |
| 467B | InputNoun | The user input noun |
| 467C | InputVerb | The user input verb |
| 467D | GrammarType | The phrase's grammar type |
| 467E | InputEntroy | Running counter ... never used |
| 467F:4680 | NextWord | Pointer to next word while parsing |
| 4681 | WordSize | Character counter in word parsing |
| 4682 | CurrentWord | Current word data |
| 4693:46BB | Stack | 38 bytes for stack |
| 477B | Unpack1 | RAM used by unpack routine |
| 477C | Unpack2 | RAM used by unpack routine |
| 477D | Unpack3 | RAM used by unpack routine |
| 477E | Unpack4 | RAM used by unpack routine |
| 48E2 | CurrentRoom | Player's current room number |