ref: 0173ab3c7ff476ea99f08bb5d5c58e8b7ca5129c
parent: 93902a38bd9b9a1a6dd1cbd4b34650549cbc5f35
author: IIMarckus <iimarckus@gmail.com>
date: Tue Mar 20 18:54:28 EDT 2012
Add shiny check function.
--- a/main.asm
+++ b/main.asm
@@ -38,7 +38,36 @@
SECTION "bank1",DATA,BANK[$1]
INCBIN "baserom.gbc",$4000,$4000
SECTION "bank2",DATA,BANK[$2]
-INCBIN "baserom.gbc",$8000,$4000
+INCBIN "baserom.gbc",$8000,$a68
+
+CheckShininess: ; 0x8a68
+; given a pointer to Attack/Defense DV in bc, determine if monster is shiny.
+; if shiny, set carry.
+ ld l,c
+ ld h,b
+ ld a,[hl]
+ and a,%00100000 ; is attack DV xx1x?
+ jr z,.NotShiny
+ ld a,[hli]
+ and a,%1111
+ cp $A ; is defense DV 1010?
+ jr nz,.NotShiny
+ ld a,[hl]
+ and a,%11110000
+ cp $A0 ; is speed DV 1010?
+ jr nz,.NotShiny
+ ld a,[hl]
+ and a,%1111
+ cp $A ; is special DV 1010?
+ jr nz,.NotShiny
+ scf
+ ret
+.NotShiny
+ and a ; clear carry flag
+ ret
+
+INCBIN "baserom.gbc",$8a88,$c000-$8a88
+
SECTION "bank3",DATA,BANK[$3]
INCBIN "baserom.gbc",$c000,$29
--
⑨