Start decomp

asm/berry_fix_program.s

@@ -5,242 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_81BF384
-sub_81BF384: @ 81BF384
-	push {r4,lr}
-	ldr r0, =0x0000ffff
-	bl DisableInterrupts
-	movs r0, 0x1
-	bl EnableInterrupts
-	bl m4aSoundVSyncOff
-	movs r0, 0
-	bl SetVBlankCallback
-	bl ResetSpriteData
-	bl ResetTasks
-	bl remove_some_task
-	movs r0, 0
-	movs r1, 0
-	bl SetGpuReg
-	ldr r4, =gUnknown_030012B8
-	movs r0, 0x50
-	bl AllocZeroed
-	str r0, [r4]
-	movs r1, 0
-	strb r1, [r0]
-	ldr r1, [r4]
-	movs r0, 0x6
-	strb r0, [r1, 0x1]
-	ldr r0, =sub_81BF3DC
-	bl SetMainCallback2
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_81BF384
-
-	thumb_func_start sub_81BF3DC
-sub_81BF3DC: @ 81BF3DC
-	push {r4,r5,lr}
-	sub sp, 0x4
-	ldr r1, =gUnknown_030012B8
-	ldr r0, [r1]
-	ldrb r0, [r0]
-	adds r5, r1, 0
-	cmp r0, 0x7
-	bls _081BF3EE
-	b _081BF592
-_081BF3EE:
-	lsls r0, 2
-	ldr r1, =_081BF400
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.pool
-	.align 2, 0
-_081BF400:
-	.4byte _081BF420
-	.4byte _081BF430
-	.4byte _081BF45C
-	.4byte _081BF488
-	.4byte _081BF4BC
-	.4byte _081BF514
-	.4byte _081BF552
-	.4byte _081BF574
-_081BF420:
-	bl sub_81BF5A4
-	ldr r0, =gUnknown_030012B8
-	ldr r1, [r0]
-	movs r0, 0x1
-	b _081BF590
-	.pool
-_081BF430:
-	movs r0, 0x5
-	bl sub_81BF7A4
-	cmp r0, 0x5
-	beq _081BF43C
-	b _081BF592
-_081BF43C:
-	ldr r0, =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	bne _081BF44A
-	b _081BF592
-_081BF44A:
-	ldr r0, =gUnknown_030012B8
-	ldr r1, [r0]
-	movs r0, 0x2
-	b _081BF590
-	.pool
-_081BF45C:
-	movs r0, 0
-	bl sub_81BF7A4
-	cmp r0, 0
-	beq _081BF468
-	b _081BF592
-_081BF468:
-	ldr r0, =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	bne _081BF476
-	b _081BF592
-_081BF476:
-	ldr r0, =gUnknown_030012B8
-	ldr r1, [r0]
-	movs r0, 0x3
-	b _081BF590
-	.pool
-_081BF488:
-	movs r0, 0x1
-	bl sub_81BF7A4
-	cmp r0, 0x1
-	beq _081BF494
-	b _081BF592
-_081BF494:
-	ldr r4, =gUnknown_030012B8
-	ldr r0, [r4]
-	ldr r1, =gUnknown_089A6550
-	str r1, [r0, 0x2C]
-	adds r0, 0x4F
-	movs r5, 0
-	strb r5, [r0]
-	ldr r0, [r4]
-	adds r0, 0x4
-	bl MultiBootInit
-	ldr r1, [r4]
-	strh r5, [r1, 0x2]
-	movs r0, 0x4
-	b _081BF590
-	.pool
-_081BF4BC:
-	adds r4, r5, 0
-	ldr r0, [r4]
-	adds r0, 0x4
-	bl MultiBootMain
-	ldr r4, [r4]
-	ldrb r0, [r4, 0x1C]
-	cmp r0, 0
-	bne _081BF4D8
-	ldr r0, [r4, 0x20]
-	ldr r1, =0x00020200
-	ands r0, r1
-	cmp r0, r1
-	beq _081BF4E4
-_081BF4D8:
-	movs r0, 0
-	strh r0, [r4, 0x2]
-	b _081BF592
-	.pool
-_081BF4E4:
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0xB4
-	bls _081BF592
-	adds r0, r4, 0x4
-	ldr r1, =gMultiBootProgram_BerryGlitchFix_Start
-	ldr r2, =gMultiBootProgram_BerryGlitchFix_End
-	subs r2, r1
-	movs r3, 0x1
-	str r3, [sp]
-	movs r3, 0x4
-	bl MultiBootStartMaster
-	ldr r1, [r5]
-	movs r0, 0x5
-	b _081BF590
-	.pool
-_081BF514:
-	movs r0, 0x2
-	bl sub_81BF7A4
-	adds r4, r0, 0
-	cmp r4, 0x2
-	bne _081BF592
-	ldr r5, =gUnknown_030012B8
-	ldr r0, [r5]
-	adds r0, 0x4
-	bl MultiBootMain
-	ldr r0, [r5]
-	adds r0, 0x4
-	bl MultiBootCheckComplete
-	cmp r0, 0
-	beq _081BF540
-	ldr r1, [r5]
-	movs r0, 0x6
-	b _081BF590
-	.pool
-_081BF540:
-	ldr r1, [r5]
-	adds r0, r1, 0
-	adds r0, 0x22
-	ldrb r0, [r0]
-	ands r4, r0
-	cmp r4, 0
-	bne _081BF592
-	movs r0, 0x7
-	b _081BF590
-_081BF552:
-	movs r0, 0x3
-	bl sub_81BF7A4
-	cmp r0, 0x3
-	bne _081BF592
-	ldr r0, =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _081BF592
-	bl DoSoftReset
-	b _081BF592
-	.pool
-_081BF574:
-	movs r0, 0x4
-	bl sub_81BF7A4
-	cmp r0, 0x4
-	bne _081BF592
-	ldr r0, =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _081BF592
-	ldr r0, =gUnknown_030012B8
-	ldr r1, [r0]
-	movs r0, 0x1
-_081BF590:
-	strb r0, [r1]
-_081BF592:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_81BF3DC
-
 	thumb_func_start sub_81BF5A4
 sub_81BF5A4: @ 81BF5A4
 	push {r4-r6,lr}

data/multiboot_berry_glitch_fix.s

@@ -3,6 +3,7 @@
 gUnknown_089A6550:: @ 89A6550
 	.incbin "baserom.gba", 0x9a6550, 0xc0
 
+gMultiBootProgram_BerryGlitchFix_Script:: @ 89A6610
 gMultiBootProgram_BerryGlitchFix_Start:: @ 89A6610
 	.incbin "baserom.gba", 0x9a6610, 0x3b34
 gMultiBootProgram_BerryGlitchFix_End::

include/gba/multiboot.h

@@ -8,19 +8,19 @@
 
 struct MultiBootParam
 {
-    u32 system_work[5];
+    u32 system_work[5]; // 00
-    u8 handshake_data;
+    u8 handshake_data;  // 14
-    u8 padding;
+    u8 padding;         // 15
-    u16 handshake_timeout;
+    u16 handshake_timeout; // 16
-    u8 probe_count;
+    u8 probe_count; // 18
-    u8 client_data[MULTIBOOT_NCHILD];
+    u8 client_data[MULTIBOOT_NCHILD]; // 19
-    u8 palette_data;
+    u8 palette_data; // 1c
-    u8 response_bit;
+    u8 response_bit; // 1d
-    u8 client_bit;
+    u8 client_bit; // 1e
-    u8 reserved1;
+    u8 reserved1; // 1f
-    u8 *boot_srcp;
+    u8 *boot_srcp; // 20
-    u8 *boot_endp;
+    u8 *boot_endp; // 24
-    u8 *masterp;
+    const u8 *masterp;
     u8 *reserved2[MULTIBOOT_NCHILD];
     u32 system_work2[4];
     u8 sendflag;

include/gpu_regs.h

@@ -0,0 +1,13 @@
+#ifndef GUARD_gpu_regs_H
+#define GUARD_gpu_regs_H
+
+// Exported type declarations
+
+// Exported RAM declarations
+
+// Exported ROM declarations
+void DisableInterrupts(u16);
+void EnableInterrupts(u16);
+void SetGpuReg(u8, u16);
+
+#endif //GUARD_gpu_regs_H

include/multiboot.h

@@ -15,7 +15,7 @@
 void MultiBootInit(struct MultiBootParam *mp);
 int MultiBootMain(struct MultiBootParam *mp);
 void MultiBootStartProbe(struct MultiBootParam *mp);
-void MultiBootStartMaster(struct MultiBootParam *mp, u8 *srcp, int length, u8 palette_color, s8 palette_speed);
+void MultiBootStartMaster(struct MultiBootParam *mp, const u8 *srcp, int length, u8 palette_color, s8 palette_speed);
 int MultiBootCheckComplete(struct MultiBootParam *mp);
 
 #endif // GUARD_MULTIBOOT_H

include/unknown_task.h

@@ -0,0 +1,11 @@
+#ifndef GUARD_unknown_task_H
+#define GUARD_unknown_task_H
+
+// Exported type declarations
+
+// Exported RAM declarations
+
+// Exported ROM declarations
+void remove_some_task(void);
+
+#endif //GUARD_unknown_task_H

ld_script.txt

@@ -259,6 +259,7 @@ SECTIONS {
         asm/battle_controller_player_partner.o(.text);
         asm/fldeff_groundshake.o(.text);
         asm/fossil_specials.o(.text);
+        src/berry_fix_program.o(.text);
         asm/berry_fix_program.o(.text);
         asm/pokemon_summary_screen.o(.text);
         asm/pokenav.o(.text);

src/berry_fix_program.c

@@ -0,0 +1,123 @@
+
+// Includes
+#include "global.h"
+#include "multiboot.h"
+#include "gpu_regs.h"
+#include "main.h"
+#include "sprite.h"
+#include "task.h"
+#include "unknown_task.h"
+#include "malloc.h"
+#include "m4a.h"
+
+// Static type declarations
+
+typedef struct {
+    u8 state;
+    u8 unk1;
+    u16 unk2;
+    struct MultiBootParam mb;
+} berryfix_t;
+
+// Static RAM declarations
+
+extern berryfix_t *gUnknown_030012B8;
+
+// Static ROM declarations
+
+static void sub_81BF3DC(void);
+void sub_81BF5A4(void);
+u32 sub_81BF7A4(u8);
+
+// .rodata
+
+extern const u8 gUnknown_089A6550[0xC0];
+extern const u8 gMultiBootProgram_BerryGlitchFix_Script[0x3b34];
+extern const u8 gMultiBootProgram_BerryGlitchFix_Start[];
+extern const u8 gMultiBootProgram_BerryGlitchFix_End[];
+
+// .text
+
+void sub_81BF384(void)
+{
+    DisableInterrupts(0xFFFF);
+    EnableInterrupts(0x0001);
+    m4aSoundVSyncOff();
+    SetVBlankCallback(NULL);
+    ResetSpriteData();
+    ResetTasks();
+    remove_some_task();
+    SetGpuReg(REG_OFFSET_DISPCNT, 0x0000);
+    gUnknown_030012B8 = AllocZeroed(0x50);
+    gUnknown_030012B8->state = 0;
+    gUnknown_030012B8->unk1 = 6;
+    SetMainCallback2(sub_81BF3DC);
+}
+
+static void sub_81BF3DC(void)
+{
+    switch (gUnknown_030012B8->state)
+    {
+        case 0:
+            sub_81BF5A4();
+            gUnknown_030012B8->state = 1;
+            break;
+        case 1:
+            if (sub_81BF7A4(5) == 5 && (gMain.newKeys & A_BUTTON))
+            {
+                gUnknown_030012B8->state = 2;
+            }
+            break;
+        case 2:
+            if (sub_81BF7A4(0) == 0 && (gMain.newKeys & A_BUTTON))
+            {
+                gUnknown_030012B8->state = 3;
+            }
+            break;
+        case 3:
+            if (sub_81BF7A4(1) == 1)
+            {
+                gUnknown_030012B8->mb.masterp = gUnknown_089A6550;
+                gUnknown_030012B8->mb.server_type = 0;
+                MultiBootInit(&gUnknown_030012B8->mb);
+                gUnknown_030012B8->unk2 = 0;
+                gUnknown_030012B8->state = 4;
+            }
+            break;
+        case 4:
+            MultiBootMain(&gUnknown_030012B8->mb);
+            if (gUnknown_030012B8->mb.probe_count != 0 || (!(gUnknown_030012B8->mb.response_bit & 2) || !(gUnknown_030012B8->mb.client_bit & 2)))
+            {
+                gUnknown_030012B8->unk2 = 0;
+            }
+            else if (++ gUnknown_030012B8->unk2 > 180)
+            {
+                MultiBootStartMaster(&gUnknown_030012B8->mb, gMultiBootProgram_BerryGlitchFix_Start, (u32)(gMultiBootProgram_BerryGlitchFix_End - gMultiBootProgram_BerryGlitchFix_Start), 4, 1);
+                gUnknown_030012B8->state = 5;
+            }
+            break;
+        case 5:
+            if (sub_81BF7A4(2) == 2) {
+                MultiBootMain(&gUnknown_030012B8->mb);
+                if (MultiBootCheckComplete(&gUnknown_030012B8->mb)) {
+                    gUnknown_030012B8->state = 6;
+                }
+                else if (!(gUnknown_030012B8->mb.client_bit & 2)) {
+                    gUnknown_030012B8->state = 7;
+                }
+            }
+            break;
+        case 6:
+            if (sub_81BF7A4(3) == 3 && gMain.newKeys & A_BUTTON)
+            {
+                DoSoftReset();
+            }
+            break;
+        case 7:
+            if (sub_81BF7A4(4) == 4 && gMain.newKeys & A_BUTTON)
+            {
+                gUnknown_030012B8->state = 1;
+            }
+            break;
+    }
+}