Merge pull request #122 from PikalaxALT/unk_81BAD84

Unk 81 bad84

asm/unk_81BAD84.s

@@ -1,57 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_81BAD84
-sub_81BAD84: @ 81BAD84
-	push {r4-r6,lr}
-	movs r6, 0x80
-	lsls r6, 19
-	movs r2, 0
-	strh r2, [r6]
-	ldr r1, =0x04000010
-	strh r2, [r1]
-	adds r1, 0x2
-	strh r2, [r1]
-	adds r1, 0x3E
-	strh r2, [r1]
-	ldr r5, =gUnknown_08617128
-	lsls r4, r0, 1
-	adds r4, r0
-	lsls r4, 2
-	adds r0, r4, r5
-	ldr r0, [r0]
-	movs r1, 0xC0
-	lsls r1, 19
-	bl LZ77UnCompVram
-	adds r0, r5, 0x4
-	adds r0, r4, r0
-	ldr r0, [r0]
-	ldr r1, =0x0600f800
-	bl LZ77UnCompVram
-	adds r5, 0x8
-	adds r4, r5
-	ldr r0, [r4]
-	movs r1, 0xA0
-	lsls r1, 19
-	movs r4, 0x80
-	lsls r4, 1
-	adds r2, r4, 0
-	bl CpuSet
-	ldr r1, =0x04000008
-	movs r2, 0xF8
-	lsls r2, 5
-	adds r0, r2, 0
-	strh r0, [r1]
-	strh r4, [r6]
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_81BAD84
-
-
-	.align 2, 0 @ Don't pad with nop.

data/unk_81BAD84.s

@@ -1,7 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.section .rodata
-
-gUnknown_08617128:: @ 8617128
-	.incbin "baserom.gba", 0x617128, 0x48

include/graphics.h

@@ -91,5 +91,23 @@ extern const u8 gUnknown_08DB9F08[];
 extern const u8 gUnknown_08DB9FFC[];
 extern const u8 gUnknown_08DBA020[];
 extern const u8 gUnknown_08DBA12C[];
+extern const u8 gUnknown_08DD87C0[];
+extern const u8 gUnknown_08DD8EE0[];
+extern const u16 gUnknown_08DD8780[];
+extern const u8 gUnknown_08DD90E0[];
+extern const u8 gUnknown_08DD9718[];
+extern const u16 gUnknown_08DD9080[];
+extern const u8 gUnknown_08DD98B4[];
+extern const u8 gUnknown_08DD9E58[];
+extern const u16 gUnknown_08DD9874[];
+extern const u8 gUnknown_08DDA02C[];
+extern const u8 gUnknown_08DDA63C[];
+extern const u16 gUnknown_08DD9FEC[];
+extern const u8 gUnknown_08DDA840[];
+extern const u8 gUnknown_08DDAE40[];
+extern const u16 gUnknown_08DDA800[];
+extern const u8 gUnknown_08DDB020[];
+extern const u8 gUnknown_08DDB2C4[];
+extern const u16 gUnknown_08DDAFE0[];
 
 #endif //GUARD_GRAPHICS_H

ld_script.txt

@@ -248,7 +248,7 @@ SECTIONS {
         asm/battle_tent.o(.text);
         src/unk_text_util_2.o(.text);
         src/multiboot.o(.text);
-        asm/unk_81BAD84.o(.text);
+        src/unk_81BAD84.o(.text);
         src/battle_controller_player_partner.o(.text);
         asm/fldeff_groundshake.o(.text);
         asm/fossil_specials.o(.text);
@@ -469,7 +469,7 @@ SECTIONS {
         data/party_menu.o(.rodata);
         data/battle_tent.o(.rodata);
         src/unk_text_util_2.o(.rodata);
-        data/unk_81BAD84.o(.rodata);
+        src/unk_81BAD84.o(.rodata);
         src/battle_controller_player_partner.o(.rodata);
         data/fossil_special_fldeff_groundshake.o(.rodata);
         src/berry_fix_program.o(.rodata);

src/unk_81BAD84.c

@@ -0,0 +1,47 @@
+#include "global.h"
+#include "graphics.h"
+
+const struct {
+    const u8 *gfx;
+    const u8 *tileMap;
+    const u16 *pltt;
+} gUnknown_08617128[] = {
+    {
+        gUnknown_08DD87C0,
+        gUnknown_08DD8EE0,
+        gUnknown_08DD8780
+    }, {
+        gUnknown_08DD90E0,
+        gUnknown_08DD9718,
+        gUnknown_08DD9080
+    }, {
+        gUnknown_08DD98B4,
+        gUnknown_08DD9E58,
+        gUnknown_08DD9874
+    }, {
+        gUnknown_08DDA02C,
+        gUnknown_08DDA63C,
+        gUnknown_08DD9FEC
+    }, {
+        gUnknown_08DDA840,
+        gUnknown_08DDAE40,
+        gUnknown_08DDA800
+    }, {
+        gUnknown_08DDB020,
+        gUnknown_08DDB2C4,
+        gUnknown_08DDAFE0
+    }
+};
+
+void sub_81BAD84(u32 idx)
+{
+    REG_DISPCNT = 0x0000;
+    REG_BG0HOFS = 0x0000;
+    REG_BG0VOFS = 0x0000;
+    REG_BLDCNT = 0x0000;
+    LZ77UnCompVram(gUnknown_08617128[idx].gfx, (void *)BG_CHAR_ADDR(0));
+    LZ77UnCompVram(gUnknown_08617128[idx].tileMap, (void *)BG_SCREEN_ADDR(31));
+    CpuCopy16(gUnknown_08617128[idx].pltt, (void *)PLTT, 0x200);
+    REG_BG0CNT = 0x1f00;
+    REG_DISPCNT = DISPCNT_BG0_ON;
+}