Prologue
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0x100 - Play Prologue
0x100<1> - Unloads Prologue?

0x101 - Checks for prologue being played?

0x102 - Starts new timekeeping sequence?
0x102<1> 0x18 - Adds to time spent?
0x102<2> - Get time spent in prologue

0x103 - Sets codnvar to 1 if cellanim slot is free
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Subs:
0x56 - ???