From 6b6b0763bd4bc67a3d1649bffbfd521553ac0760 Mon Sep 17 00:00:00 2001
From: scawful <justin.scofield@outlook.com>
Date: Fri, 10 Mar 2023 23:10:19 -0600
Subject: [PATCH] start disassembling fairy flipper code

---
 Masks/zora_mask.asm | 142 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 141 insertions(+), 1 deletion(-)

diff --git a/Masks/zora_mask.asm b/Masks/zora_mask.asm
index 2acf404..fdb75a6 100644
--- a/Masks/zora_mask.asm
+++ b/Masks/zora_mask.asm
@@ -1,3 +1,9 @@
+; =============================================================================
+; Zora Mask
+; Fairy Flippers RAM Position $7EF33C - 01
+
+; Normal Flippers RAM Position $7ef356 - 01
+
 ; =============================================================================
 
 org $07A569
@@ -14,6 +20,7 @@ LinkItem_ZoraMask:
   LDA.b #$14 : JSR Player_DoSfx2
 
   LDA $02B2 : CMP #$02 : BEQ .unequip   ; is the zora mask on?
+  JSL UpdateZoraPalette
   LDA #$36 : STA $BC
   LDA #$02 : STA $02B2
   BRA .return
@@ -31,4 +38,137 @@ LinkItem_ZoraMask:
 org $368000
 incbin gfx/zora_link.4bpp
 
-; =============================================================================
\ No newline at end of file
+; =============================================================================
+
+UpdateZoraPalette:
+{
+  REP #$30  ; change 16 bit mode
+  LDX #$001E
+
+  .loop
+  LDA.l zora_palette, X : STA $7EC6E0, X
+  DEX : DEX : BPL .loop
+
+  SEP #$30  ; go back to 8 bit mode
+  INC $15   ; update the palette
+  RTL       
+}
+
+; TODO: Change from "bunny palette" to blue zora palette colors 
+zora_palette:
+  dw #$7BDE, #$7FFF, #$2F7D, #$19B5, #$3A9C, #$14A5, #$19FD, #$14B6
+  dw #$55BB, #$362A, #$3F4E, #$162B, #$22D0, #$2E5A, #$1970, #$7616
+  dw #$6565, #$7271, #$2AB7, #$477E, #$1997, #$14B5, #$459B, #$69F2
+  dw #$7AB8, #$2609, #$19D8, #$3D95, #$567C, #$1890, #$52F6, #$2357, #$0000
+
+; =============================================================================
+
+LinkItem_UsingZoraMask:
+{
+
+}
+
+; =============================================================================
+; Disassembled/Debugged Code of Conn's Zora Flippers 
+; May God Give Me Strength 
+
+; =============================================================================
+; 22E2A0
+; 
+; Description: 
+  JSR $E530
+  JSL $22E670
+  LDA $7F500E
+  CMP #$01
+  BEQ $22E2B2
+  JMP $E2F0
+  LDA $F0
+  SEC 
+  SBC #$0B
+  BCS $22E2BC
+  JMP $E2F0
+  LDA $F0
+  SEC 
+  SBC #$4B
+  BCS $22E2CB
+  LDA #$40
+  STA $F0
+  JMP $879657
+  LDA $F0
+  SEC 
+  SBC #$BB
+  BCS $22E2D5
+  JMP $E2F0
+
+; =================================================================
+; 22E2F0
+
+  LDA $5D
+  ASL 
+  TAX 
+  JMP $878106
+
+
+; =================================================================
+; 22E670
+
+  LDA $7F500E ; probably free ram 
+  CMP #$01
+  BEQ $22E679
+  RTL 
+;-------
+; Magic draining loop 
+  LDA $7EF36E ; Load magic 
+  BNE $22E688 ; branch if != 0 
+  LDA #$3C
+  STA $012E
+  JMP $22E141
+  LDA $7F500D ; load timer 
+  BNE $22E69E ; branch if != 0 
+  LDA #$18
+  STA $7F500D ; set timer to 18
+  LDA $7EF36E ; load magic 
+  DEC         ; decrease magic by 1 
+  STA $7EF36E ; store new magic 
+  RTL 
+;-------
+  DEC 
+  STA $7F500D ; decrease timer 
+  RTL 
+
+; =================================================================
+; 22E600
+; Possibly relevant, unconfirmed 
+
+  LDA $7EF34A
+  AND #$00FF
+  CMP #$0001
+  BEQ $22E611
+  LDA $7EF35C,X
+  RTL 
+;-------
+  LDA $7EF33B
+  AND #$00FF
+  CMP #$0001
+  BNE $22E622
+  LDA $7EF35C,X
+  RTL 
+;-------
+  SEP #$30
+  LDA #$3C
+  STA $139F
+  STA $13A1
+  STA $13DF
+  STA $13E1
+  REP #$30
+  LDA $7EF35C,X
+  RTL 
+
+; =================================================================
+; 22EF50
+; Possibly relevant 
+
+  LDA $7EF3CC
+  CMP #$0D
+  BEQ $22EF59
+  RTL