From Bitchin100 DocGarden
| Address
| Description
| Initialized
|
| F5F0 | Start of System | 035A
|
| F5F2 | SP upon power-down | 035C
|
| F5F4 | HIMEM value | 035E
|
| F5F6 | Power-on hook | 0360
|
| F5F9 | BCR Interrupt hook | 0363
|
| F5FC | UART DR hook | 0366
|
| F5FF | TP interrupt hook | 0369
|
| F602 | LPS interrupt hook | 036C
|
| F604 | Power-on hook | 036F
|
| F60F | OptROM hook | 0379
|
| F62A | OptROM installed | 0394
|
| F62B | 20 or 10 pps |
|
| F639 | Cursor row | 03A3
|
| F63A | LCD cursor column | 03A4
|
| F63B | LCD active lines | 03A5
|
| F63C | LCD active columns | 03A6
|
| F63D | Label line flags | 03A7
|
| F648 | Reverse video if 1 | 03B2
|
| F64E | X-pixel set | 03B8
|
| F64F | Y-pixel set | 03B9
|
| F657 | Power-down value | 03C1
|
| F65B-F660 | Initial Stat setting | 03C5
|
| F674 | LPOS printer column | 03DE
|
| F675 | Output 0=LCD 1=LP | 03DF
|
| F678 | Top of available RAM | 03E2
|
| F685 | Keyboard buffer |
|
| F788 | POS- cursor position |
|
| F789 | Key labels |
|
| F88C | Location of PASTE buffer |
|
| F923 | Seconds- units |
|
| F924 | Seconds- tens |
|
| F925 | Minutes- units |
|
| F926 | Minutes- tens |
|
| F927 | Hours- units |
|
| F928 | Hours - tens |
|
| F929 | Day of month- units |
|
| F92A | Day of month- tens |
|
| F92B | Day of week |
|
| F92C | Month |
|
| F92D | Year- units |
|
| F92E | Year- tens |
|
| F962-F9B9 | Directory 6BF1+ |
|
| F9BA-F9C4 | OptROM or filename |
|
| F9C5-FA74 | Directory |
|
| FAAC | Character recently sent |
|
| FAAE | Port A8 contents |
|
| FAC0 | Lowest installed RAM |
|
| FADA-FB14 | RST 38 hooks - all RET |
|
| FB16-FB39 | RST 38 hooks - all error 5 |
|
| FBB0 | Top of DO files |
|
| FBB2 | Top of CO files |
|
| FC18 | Floating point accumulator 1 |
|
| FC69 | Floating point accumulator 2 |
|
| FC82 | Maxfiles? |
|
| FC93-FC98 | Filename |
|
| FCC0-FDFF | ALT-LCD |
|
| FE00-FF3F | LCD memory |
|
| FF40 | Distant computer sent XOFF |
|
| FF41 | This Model 100 sent XOFF |
|
| FF42 | Is XOFF enabled? |
|
| FF44 | SOUND OFF=1 ON=0 |
|
| FF45 | Port E8 contents |
|
| FF8B | Address of baud rate |
|
