| Variable
|
Meaning
|
Used
|
| 0x000-0x009
|
(boolean) Savegame available
|
Set by opcode 0x3C (check valid saves).
|
| 0x08C & 0x08D
|
Which room the character is in
|
|
| 0x08E
|
Which scene/orientation the character is in
|
|
| 0x08F
|
Which chapter the player is in
|
a value from 1 to 5
|
| 0x091
|
GameBook notification
|
1 = show blue circles
|
| 0x0B4
|
Set to 1 when Samantha makes a move
|
Used by all the AI puzzles (AL, BS, HS, TB, and TX) except for PT (pente) because Samantha can't make a move there. Set to 1 in script.grv
|
| 0x0BF
|
Something important
|
Only used in script.grv and tx.grv (triangle/centaur puzzle)
|
| 0x0E9 to 0x0FB
|
Maybe puzzle completion
|
5=solved, 0=unsolved
|
| 0x100
|
Audio driver: 1 = GM, 2 = MT32
|
Has to be set from the game options. Shows a "loading roland / general midi driver" video at the start and probably sends sysexes while playing it
|
| 0x102
|
Return value of functions
|
Set by opcode 0x17 (return)
|
| 0x103
|
Timer
|
Incremented regularly (while idling) although can be "seeded" as such by the script
|
| 0x104
|
Number of available savegames
|
Set by opcode 0x3C (check valid saves). Enables the "load" option in the main menu if it's different than 0
|
| 0x106
|
Current CD: -1=none, 0=all, 1, 2
|
Set by opcode 0x4C (getcd). Shows the screen asking for a CD
|