intro: through sub_80EDD28

asm/intro.s

@@ -5,103 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_80EDD28
-sub_80EDD28: @ 80EDD28
-	push {r4-r7,lr}
-	lsls r0, 16
-	lsrs r5, r0, 16
-	lsls r1, 16
-	lsrs r3, r1, 16
-	lsls r2, 16
-	lsrs r2, 16
-	ldr r0, _080EDDCC @ =gUnknown_203AB12
-	ldrh r0, [r0]
-	ands r2, r0
-	adds r2, 0x2
-	lsls r2, 16
-	lsrs r4, r2, 16
-	ldr r1, _080EDDD0 @ =gUnknown_203AB2C
-	ldrh r0, [r1]
-	adds r2, r0, 0
-	adds r0, r2, 0x1
-	strh r0, [r1]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x3
-	ble _080EDD5C
-	movs r6, 0x3
-	negs r6, r6
-	adds r0, r6, 0
-	strh r0, [r1]
-_080EDD5C:
-	lsls r1, r5, 16
-	asrs r1, 16
-	lsls r0, r4, 16
-	asrs r7, r0, 16
-	adds r1, r7
-	lsls r0, r3, 16
-	asrs r0, 16
-	lsls r2, 16
-	asrs r6, r2, 16
-	adds r0, r6
-	lsls r0, 16
-	lsrs r3, r0, 16
-	lsls r1, 16
-	asrs r4, r1, 16
-	ldr r0, _080EDDD4 @ =0xffff0000
-	adds r1, r0
-	lsrs r1, 16
-	cmp r1, 0xEE
-	bhi _080EDDC6
-	ldr r0, _080EDDD8 @ =gUnknown_840BC84
-	lsls r1, r3, 16
-	asrs r5, r1, 16
-	adds r1, r4, 0
-	adds r2, r5, 0
-	movs r3, 0x1
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, 0x40
-	beq _080EDDC6
-	ldr r0, _080EDDDC @ =gSprites
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r0
-	ldr r0, _080EDDE0 @ =gUnknown_203AB22
-	ldrh r0, [r0]
-	lsls r4, r0
-	strh r4, [r1, 0x2E]
-	ldr r2, _080EDDE4 @ =gUnknown_203AB24
-	adds r0, r5, 0
-	ldrh r2, [r2]
-	lsls r0, r2
-	strh r0, [r1, 0x30]
-	ldr r0, _080EDDE8 @ =gUnknown_203AB1E
-	ldrh r0, [r0]
-	muls r0, r7
-	strh r0, [r1, 0x32]
-	ldr r0, _080EDDEC @ =gUnknown_203AB20
-	ldrh r0, [r0]
-	muls r0, r6
-	strh r0, [r1, 0x34]
-_080EDDC6:
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080EDDCC: .4byte gUnknown_203AB12
-_080EDDD0: .4byte gUnknown_203AB2C
-_080EDDD4: .4byte 0xffff0000
-_080EDDD8: .4byte gUnknown_840BC84
-_080EDDDC: .4byte gSprites
-_080EDDE0: .4byte gUnknown_203AB22
-_080EDDE4: .4byte gUnknown_203AB24
-_080EDDE8: .4byte gUnknown_203AB1E
-_080EDDEC: .4byte gUnknown_203AB20
-	thumb_func_end sub_80EDD28
-
 	thumb_func_start sub_80EDDF0
 sub_80EDDF0: @ 80EDDF0
 	push {lr}

asm/title_screen.s

@@ -1057,9 +1057,9 @@ _080791DE:
 	cmp r5, 0
 	bne _080792A6
 	.ifdef FIRERED
-	movs r0, 0x6
+	movs r0, 0x6 @ CHARIZARD
 	.else
-	movs r0, 0x3
+	movs r0, 0x3 @ VENUSAUR
 	.endif
 	movs r1, 0
 	bl PlayCry1

src/intro.c

@@ -63,7 +63,7 @@ EWRAM_DATA u16 gUnknown_203AB22 = 0;
 EWRAM_DATA u16 gUnknown_203AB24 = 0;
 EWRAM_DATA u16 gUnknown_203AB26 = 0;
 EWRAM_DATA u32 gUnknown_203AB28 = 0;
-EWRAM_DATA u16 gUnknown_203AB2C = 0;
+EWRAM_DATA s16 gUnknown_203AB2C = 0;
 EWRAM_DATA u16 gUnknown_203AB2E = 0;
 
 void sub_80EC870(void);
@@ -1482,3 +1482,26 @@ void sub_80EDC40(void)
         StoreWordInTwoHalfwords(&gSprites[spriteId].data[6], gUnknown_203AB28);
     }
 }
+
+void sub_80EDD28(s16 x, s16 y, s16 a2)
+{
+    u8 spriteId;
+    s16 r4 = (a2 & gUnknown_203AB12) + 2;
+    s16 r2 = gUnknown_203AB2C;
+    gUnknown_203AB2C++;
+    if (gUnknown_203AB2C > 3)
+        gUnknown_203AB2C = -3;
+    x += r4;
+    y += r2;
+    if (x >= 1 && x <= 0xEF)
+    {
+        spriteId = CreateSprite(&gUnknown_840BC84, x, y, 1);
+        if (spriteId != MAX_SPRITES)
+        {
+            gSprites[spriteId].data[0] = x << gUnknown_203AB22;
+            gSprites[spriteId].data[1] = y << gUnknown_203AB24;
+            gSprites[spriteId].data[2] = gUnknown_203AB1E * r4;
+            gSprites[spriteId].data[3] = gUnknown_203AB20 * r2;
+        }
+    }
+}