Back to Skool: Routine at 5D23

5D23: Deal with ERIC's flight from the saddle of the bike

Used by the routine at F7AD when bit 6 at 7FED is set on its own by the routine at 720A because ERIC has hit a wall, a closed door, or the closed skool gate while standing on the saddle of the bike.
5D23	LD A,($D201)	A=ERIC's x-coordinate
5D26	SUB $80	Did ERIC hit the closed skool gate?
5D28	CP $10	Did ERIC hit the closed skool gate?
5D2A	SBC A,A	A=0xFF if so, 0x00 otherwise
5D2B	ADD A,$FE	L=0xFD if ERIC hit the skool gate, 0xFE otherwise
5D2D	LD L,A	L=0xFD if ERIC hit the skool gate, 0xFE otherwise
This entry point is used by the routine at 5D33 with L=0xFF.
5D2E	LD H,$9F	Now HL points at the appropriate descent table
5D30	JP $FBF5	Begin the descent