Routines
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5D4F: 'J' pressed - jump
The address of this routine is found in the table of keypress handling routines at E550. It is called from the main loop at F6EA when 'J' or 'L' is pressed.
5D4F CALL $6E50 Is ERIC on a staircase?
5D52 RET C Return if so
5D53 LD HL,$7FFB Set bit 0 of ERIC's status flags at 7FFB, triggering a jump to 5D63 next time we deal with ERIC
5D56 INC (HL)
5D57 LD H,$D2 0xD2=ERIC
5D59 CALL $61B4 Update the SRB for ERIC's current animatory state and location
5D5C AND $80 A=0x07 or 0x87: animatory state of ERIC jumping
5D5E ADD A,$07
5D60 DEC D ERIC will rise one level
5D61 JR $5D81 Update ERIC's animatory state and location and update the SRB
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