bunny hood item increase links speed when holding

BunnyHood/bunnyhood.asm

@@ -0,0 +1,52 @@
+;===========================================================
+; Bunny Hood Item
+; Makes Link run quicker when holding
+; Written by Conn (I think)
+; $7EF349 bunny hood RAM slot
+; 
+; Adjustable speed table at the end
+;   db (0) $18: - Horizontal and vertical walking speed 
+;                 (Default = 18) 
+;   db (1) $10 - Diagonal walking speed 
+;                 (Default = 10) 
+;   db (2) $0a - Stairs walking speed 
+;                 (Default = 0A) 
+;   db (0c) $14 - walking through heavy grass speed (also shallow water) 
+;                 (Default = 14) 
+;   db (0d) $0d - walking diagonally through heavy grass speed (also shallow water) 
+;                 (Default = 0D) 
+;   db (10) $40 - Pegasus boots speed (Default = 40)
+;
+; TODO: draw sprite on link
+;===========================================================
+
+namespace BunnyHood 
+{
+  Main: {
+    lorom
+    org $87E330
+    JSR $FD66
+    CLC
+
+    org $87FD66
+    JSL $20AF20
+    RTS
+
+    org $20AF20
+    CPX.b #$11 : BCS end  ; speed value upper bound check
+    LDA.w $0202           ; check the current item
+    CMP.b #$11 : BNE end  ; is it the bunny hood?
+    LDA $20AF70,X         ; load new speed values
+    CLC
+    RTL
+
+    end: {
+      LDA $87E227,X       ; load native speed values
+      CLC
+      RTL
+    }
+
+    org $20AF70           ; this selects the new speed values
+    db $20, $12, $0a, $18, $10, $08, $08, $04, $0c, $10, $09, $19, $14, $0d, $10, $08, $40
+  }  ; label Main
+}  ; namespace BunnyHood