SMB Deluxe - Axe run fix.asm

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; SMB Deluxe
; Auto-calculate the X position where Mario stops moving, when running forward
; after the axe in castle levels. Replaces vanilla code to load hardcoded X
; positions for each world in Original/Challenge/Super Players mode.
;
; For assembling with WLA DX
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; Base defines

.memorymap
    slotsize $4000
    defaultslot 1
    slot 0 $0000
    slot 1 $4000
.endme
.rombanksize $4000
.rombanks $40
.computegbchecksum

.background "smbdx.gbc"

.define W_ChallengeFlag       $C283
.define H_PlayerXHigh         $FFA8

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.bank $03 slot 1
.orga $503E
.section "AxeVictory_PlayerStopX auto-calculate" size $5070-$503E overwrite
    ldh  a,[<H_PlayerXHigh]         ;\ Set stop position high byte
    inc  a                          ;| to player X high, +1
    ld   [$C267],a                  ;/
    ld   a,[W_ChallengeFlag]
    and  a
    jr   nz,@Challenge
    ld   a,$50                      ;\ Non-challenge:
    ld   [$C265],a                  ;/ Always use $50 for low byte
    ret
@Challenge:
    ld   a,$60                      ;\ Challenge:
    ld   [$C265],a                  ;/ Always use $60 for low byte
    ret
.ends