6c9b33ed93
Change some label names to be clearer Fix some of the progress flags and dungeon bitfields
93 lines
2.6 KiB
NASM
93 lines
2.6 KiB
NASM
;--------------------------------------------------------------------------------
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; $7F5092 - Potion Animation Busy Flags (Health)
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; $7F5093 - Potion Animation Busy Flags (Magic)
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;--------------------------------------------------------------------------------
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!BUSY_HEALTH = $7F5092
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RefillHealth:
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REP #$20 ; set 16-bit accumulator
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LDA $A0 ; these are all decimal because i got them that way
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CMP.w #279 : BNE + ; Spike Cave bottles work normally
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SEP #$20 ; set 8-bit accumulator
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LDA #$A0
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BRA .done
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+
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SEP #$20 ; set 8-bit accumulator
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LDA.l PotionHealthRefill : CMP.b #$A0 : !BGE .done
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LDA !BUSY_HEALTH : BNE ++
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LDA.l PotionHealthRefill ; load refill amount
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!ADD CurrentHealth ; add to current health
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CMP MaximumHealth : !BLT +++ : LDA MaximumHealth : +++
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STA !BUSY_HEALTH
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++
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LDA CurrentHealth : CMP.l !BUSY_HEALTH : !BLT ++
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LDA.b #$00 : STA HeartsFiller
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LDA $020A : BNE .notDone
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LDA.b #$00 : STA !BUSY_HEALTH
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SEC
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RTL
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++
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LDA.b #$08 : STA HeartsFiller ; refill some health
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.notDone
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CLC
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RTL
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.done
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; Check goal health versus actual health.
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; if(actual < goal) then branch.
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LDA CurrentHealth : CMP MaximumHealth : BCC .refillAllHealth
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LDA MaximumHealth : STA CurrentHealth
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LDA.b #$00 : STA HeartsFiller
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; ??? not sure what purpose this branch serves.
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LDA $020A : BNE .beta
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SEC
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RTL
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.refillAllHealth
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; Fill up ze health.
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LDA.b #$A0 : STA HeartsFiller
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.beta
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CLC
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RTL
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;--------------------------------------------------------------------------------
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!BUSY_MAGIC = $7F5093
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RefillMagic:
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REP #$20 ; set 16-bit accumulator
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LDA $A0 ; these are all decimal because i got them that way
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CMP.w #279 : BNE + ; Spike Cave bottles work normally
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SEP #$20 ; set 8-bit accumulator
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LDA #$80
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BRA .done
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+
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SEP #$20 ; set 8-bit accumulator
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LDA.l PotionMagicRefill : CMP.b #$80 : !BGE .done
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LDA !BUSY_MAGIC : BNE ++
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LDA.l PotionMagicRefill ; load refill amount
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!ADD CurrentMagic ; add to current magic
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CMP.b #$80 : !BLT +++ : LDA.b #$80 : +++
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STA !BUSY_MAGIC
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++
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LDA CurrentMagic : CMP.l !BUSY_MAGIC : !BLT ++
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LDA.b #$00 : STA !BUSY_MAGIC
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SEC
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RTL
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++
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LDA.b #$01 : STA MagicFiller ; refill some magic
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CLC
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RTL
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.done
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SEP #$30
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; Check if Link's magic meter is full
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LDA CurrentMagic : CMP.b #$80
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BCS .itsFull
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; Tell the magic meter to fill up until it's full.
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LDA.b #$80 : STA MagicFiller
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SEP #$30
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RTL
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.itsFull
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; Set the carry, signifying we're done filling it.
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SEP #$31
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RTL
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;--------------------------------------------------------------------------------
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