Decompile some slot_machine functions

4 files changed, 158 insertions, 312 deletions

diff --git a/asm/slot_machine.s b/asm/slot_machine.s
index 32abb287d..46af5bc0f 100644
--- a/asm/slot_machine.s
+++ b/asm/slot_machine.s
@@ -7048,72 +7048,7 @@ _08104CA4: .4byte gTasks
 _08104CA8: .4byte 0x0000ffff
 	thumb_func_end sub_8104C5C
 
-	thumb_func_start sub_8104CAC
-sub_8104CAC: @ 8104CAC
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl sub_8104DA4
-	ldr r0, _08104D24 @ =0x02000000
-	adds r0, 0x3D
-	ldrb r1, [r0]
-	lsls r0, r1, 2
-	adds r0, r1
-	lsls r0, 3
-	ldr r1, _08104D28 @ =gTasks
-	adds r7, r0, r1
-	strh r4, [r7, 0xA]
-	movs r6, 0
-	ldr r1, _08104D2C @ =gUnknown_083ED048
-	lsls r5, r4, 2
-	adds r0, r5, r1
-	ldr r0, [r0]
-	ldrb r0, [r0]
-	cmp r0, 0xFF
-	beq _08104D18
-	mov r8, r1
-_08104CE0:
-	mov r0, r8
-	adds r4, r5, r0
-	ldr r0, [r4]
-	lsls r2, r6, 2
-	adds r2, r0
-	ldrb r0, [r2]
-	ldrb r1, [r2, 0x1]
-	movs r3, 0x2
-	ldrsh r2, [r2, r3]
-	bl sub_8105BB4
-	lsls r0, 24
-	lsrs r0, 24
-	adds r2, r6, 0x4
-	lsls r2, 1
-	adds r1, r7, 0
-	adds r1, 0x8
-	adds r1, r2
-	strh r0, [r1]
-	adds r0, r6, 0x1
-	lsls r0, 24
-	lsrs r6, r0, 24
-	ldr r1, [r4]
-	lsls r0, r6, 2
-	adds r0, r1
-	ldrb r0, [r0]
-	cmp r0, 0xFF
-	bne _08104CE0
-_08104D18:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08104D24: .4byte 0x02000000
-_08104D28: .4byte gTasks
-_08104D2C: .4byte gUnknown_083ED048
-	thumb_func_end sub_8104CAC
+.section .text_8104D30
 
 	thumb_func_start sub_8104D30
 sub_8104D30: @ 8104D30
@@ -10221,249 +10156,4 @@ _08106440: .4byte gUnknown_083EDCDC
 _08106444: .4byte gUnknown_083EDCE4
 	thumb_func_end sub_8106404
 
-	thumb_func_start sub_8106448
-sub_8106448: @ 8106448
-	push {r4-r7,lr}
-	ldr r0, _081064A0 @ =gSlotMachine_Gfx
-	ldr r4, _081064A4 @ =0x02010000
-	adds r1, r4, 0
-	bl sub_800D238
-	movs r3, 0xC0
-	lsls r3, 19
-	movs r5, 0xE9
-	lsls r5, 5
-	ldr r1, _081064A8 @ =0x040000d4
-	ldr r6, _081064AC @ =0x80000800
-	movs r2, 0x80
-	lsls r2, 5
-	movs r7, 0x80
-	lsls r7, 24
-_08106468:
-	str r4, [r1]
-	str r3, [r1, 0x4]
-	str r6, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	adds r4, r2
-	adds r3, r2
-	subs r5, r2
-	cmp r5, r2
-	bhi _08106468
-	str r4, [r1]
-	str r3, [r1, 0x4]
-	lsrs r0, r5, 1
-	orrs r0, r7
-	str r0, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	ldr r0, _081064B0 @ =gUnknown_08E95A18
-	movs r1, 0
-	movs r2, 0xA0
-	bl LoadPalette
-	ldr r0, _081064B4 @ =gPalette_83EDE24
-	movs r1, 0xD0
-	movs r2, 0x20
-	bl LoadPalette
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081064A0: .4byte gSlotMachine_Gfx
-_081064A4: .4byte 0x02010000
-_081064A8: .4byte 0x040000d4
-_081064AC: .4byte 0x80000800
-_081064B0: .4byte gUnknown_08E95A18
-_081064B4: .4byte gPalette_83EDE24
-	thumb_func_end sub_8106448
-
-	thumb_func_start sub_81064B8
-sub_81064B8: @ 81064B8
-	push {lr}
-	ldr r0, _081064D0 @ =gUnknown_08E95AB8
-	ldr r1, _081064D4 @ =0x0600e800
-	movs r2, 0xA0
-	lsls r2, 2
-	bl CpuSet
-	bl sub_81064D8
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081064D0: .4byte gUnknown_08E95AB8
-_081064D4: .4byte 0x0600e800
-	thumb_func_end sub_81064B8
-
-	thumb_func_start sub_81064D8
-sub_81064D8: @ 81064D8
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	ldr r6, _0810658C @ =0x0600f000
-	movs r3, 0x4
-	movs r0, 0xC0
-	lsls r0, 1
-	mov r12, r0
-	movs r1, 0xC0
-	lsls r1, 2
-	mov r9, r1
-	movs r2, 0xA0
-	lsls r2, 1
-	mov r8, r2
-_081064F6:
-	movs r0, 0
-	lsls r4, r3, 16
-	asrs r5, r4, 16
-_081064FC:
-	lsls r2, r0, 16
-	asrs r2, 16
-	adds r1, r5, r2
-	lsls r1, 1
-	adds r1, r6
-	mov r7, r8
-	adds r3, r1, r7
-	ldr r7, _08106590 @ =0x00002051
-	adds r0, r7, 0
-	strh r0, [r3]
-	movs r0, 0xD0
-	lsls r0, 2
-	adds r3, r1, r0
-	ldr r7, _08106594 @ =0x00002851
-	adds r0, r7, 0
-	strh r0, [r3]
-	mov r0, r12
-	adds r3, r1, r0
-	ldr r7, _08106598 @ =0x00002061
-	adds r0, r7, 0
-	strh r0, [r3]
-	add r1, r9
-	ldr r3, _0810659C @ =0x00002861
-	adds r0, r3, 0
-	strh r0, [r1]
-	adds r2, 0x1
-	lsls r2, 16
-	lsrs r0, r2, 16
-	asrs r2, 16
-	cmp r2, 0x3
-	ble _081064FC
-	asrs r3, r4, 16
-	lsls r1, r3, 1
-	adds r1, r6
-	mov r5, r12
-	adds r2, r1, r5
-	adds r7, 0x5D
-	adds r0, r7, 0
-	strh r0, [r2]
-	add r1, r9
-	ldr r2, _081065A0 @ =0x000028be
-	adds r0, r2, 0
-	strh r0, [r1]
-	movs r0, 0x7
-	ldr r5, _081065A4 @ =0x000020bf
-	adds r2, r5, 0
-_08106558:
-	lsls r1, r0, 16
-	asrs r1, 16
-	lsls r0, r1, 5
-	adds r0, r3
-	lsls r0, 1
-	adds r0, r6
-	strh r2, [r0]
-	adds r1, 0x1
-	lsls r1, 16
-	lsrs r0, r1, 16
-	asrs r1, 16
-	cmp r1, 0xB
-	ble _08106558
-	movs r7, 0xA0
-	lsls r7, 11
-	adds r0, r4, r7
-	lsrs r3, r0, 16
-	asrs r0, 16
-	cmp r0, 0x11
-	ble _081064F6
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0810658C: .4byte 0x0600f000
-_08106590: .4byte 0x00002051
-_08106594: .4byte 0x00002851
-_08106598: .4byte 0x00002061
-_0810659C: .4byte 0x00002861
-_081065A0: .4byte 0x000028be
-_081065A4: .4byte 0x000020bf
-	thumb_func_end sub_81064D8
-
-	thumb_func_start sub_81065A8
-sub_81065A8: @ 81065A8
-	push {r4-r6,lr}
-	ldr r5, [sp, 0x10]
-	lsls r0, 16
-	asrs r0, 15
-	ldr r6, _081065D0 @ =0x0600ebc0
-	adds r4, r0, r6
-	strh r1, [r4]
-	ldr r4, _081065D4 @ =0x0600ebc2
-	adds r1, r0, r4
-	strh r2, [r1]
-	adds r6, 0x40
-	adds r1, r0, r6
-	strh r3, [r1]
-	ldr r1, _081065D8 @ =0x0600ec02
-	adds r0, r1
-	strh r5, [r0]
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081065D0: .4byte 0x0600ebc0
-_081065D4: .4byte 0x0600ebc2
-_081065D8: .4byte 0x0600ec02
-	thumb_func_end sub_81065A8
-
-	thumb_func_start sub_81065DC
-sub_81065DC: @ 81065DC
-	push {r4,r5,lr}
-	ldr r0, _08106624 @ =gUnknown_08E95FB8
-	ldr r1, _08106628 @ =0x0600e800
-	movs r2, 0xA0
-	lsls r2, 2
-	bl CpuSet
-	ldr r5, _0810662C @ =0x0600f000
-	movs r1, 0
-	movs r4, 0
-_081065F0:
-	movs r0, 0
-	lsls r3, r1, 16
-	asrs r2, r3, 11
-_081065F6:
-	lsls r1, r0, 16
-	asrs r1, 16
-	adds r0, r2, r1
-	lsls r0, 1
-	adds r0, r5
-	strh r4, [r0]
-	adds r1, 0x1
-	lsls r1, 16
-	lsrs r0, r1, 16
-	asrs r1, 16
-	cmp r1, 0x1D
-	ble _081065F6
-	movs r1, 0x80
-	lsls r1, 9
-	adds r0, r3, r1
-	lsrs r1, r0, 16
-	asrs r0, 16
-	cmp r0, 0x13
-	ble _081065F0
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08106624: .4byte gUnknown_08E95FB8
-_08106628: .4byte 0x0600e800
-_0810662C: .4byte 0x0600f000
-	thumb_func_end sub_81065DC
-
 	.align 2, 0 @ Don't pad with nop.
diff --git a/ld_script.txt b/ld_script.txt
index af5678637..c5ab999fe 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -211,6 +211,9 @@ SECTIONS {
         src/decoration.o(.text);
         asm/decoration.o(.text_80FE868);
         asm/slot_machine.o(.text);
+        src/slot_machine.o(.text);
+        asm/slot_machine.o(.text_8104D30)
+        src/slot_machine.o(.text_b);
         src/contest_painting.o(.text);
         src/battle_ai.o(.text);
         asm/trader.o(.text);
diff --git a/src/battle_anim.c b/src/battle_anim.c
index b9aa5b898..bdb34365f 100644
--- a/src/battle_anim.c
+++ b/src/battle_anim.c
@@ -65,7 +65,6 @@ extern u8 sub_8078874(u8);
 extern void sub_8078914();
 extern u8 sub_80AEB1C();
 extern void sub_80E4EF8(int, int, int, int, u16, u8, int);
-extern void sub_800D238();
 extern u8 sub_80789BC();
 extern void sub_80AB2AC(void);
 extern void sub_800D7B8(void);
diff --git a/src/slot_machine.c b/src/slot_machine.c
new file mode 100644
index 000000000..c087bf6b4
--- /dev/null
+++ b/src/slot_machine.c
@@ -0,0 +1,154 @@
+#include "global.h"
+#include "decompress.h"
+#include "palette.h"
+#include "task.h"
+
+struct UnkStruct2000000 {
+    /*0x00*/ u8 filler00[61];
+    /*0x3D*/ u8 unk3D;
+};
+
+struct UnkStruct1 {
+    /*0x00*/ u8 unk00;
+    /*0x01*/ u8 unk01;
+    /*0x02*/ s16 unk02;
+};
+
+extern struct UnkStruct2000000 unk_2000000;
+
+extern struct UnkStruct1 *gUnknown_083ED048[];
+extern const u16 gPalette_83EDE24[];
+
+extern const u8 gSlotMachine_Gfx[];
+#if ENGLISH
+#define SLOTMACHINE_GFX_TILES 233
+#elif GERMAN
+#define SLOTMACHINE_GFX_TILES 236
+#endif
+
+extern const u16 gUnknown_08E95A18[];
+
+extern u16 gUnknown_08E95AB8[];
+extern u16 gUnknown_08E95FB8[];
+
+
+void sub_8104DA4(void);
+
+u8 sub_8105BB4(u8, u8, s16);
+
+static void LoadSlotMachineWheelOverlay(void);
+
+void sub_8104CAC(u8 arg0) {
+    u8 i;
+    struct Task *task;
+
+    sub_8104DA4();
+
+    task = &gTasks[unk_2000000.unk3D];
+    task->data[1] = arg0;
+
+    i = 0;
+    while (gUnknown_083ED048[arg0][i].unk00 != 0xFF)
+    {
+        u8 spriteId;
+        spriteId = sub_8105BB4(
+                gUnknown_083ED048[arg0][i].unk00,
+                gUnknown_083ED048[arg0][i].unk01,
+                gUnknown_083ED048[arg0][i].unk02
+        );
+        task->data[4 + i] = spriteId;
+
+#ifdef GERMAN
+        if (arg0 == 5 && i <= 2)
+        {
+            gSprites[spriteId].invisible = TRUE;
+        }
+#endif
+
+        i += 1;
+    }
+}
+
+asm(".section .text_b");
+
+void sub_8106448(void) {
+    u32 offsetRead, offsetWrite;
+    u32 size;
+
+    sub_800D238(gSlotMachine_Gfx, (void *) 0x02010000);
+
+    offsetRead = 0x02010000;
+    offsetWrite = BG_VRAM;
+    size = SLOTMACHINE_GFX_TILES * 32;
+    while (TRUE)
+    {
+        DmaCopy16(3, offsetRead, (void *) (offsetWrite), 0x1000);
+        offsetRead += 0x1000;
+        offsetWrite += 0x1000;
+        size -= 0x1000;
+        if (size <= 0x1000)
+        {
+            DmaCopy16(3, offsetRead, (void *) (offsetWrite), size);
+            break;
+        }
+    }
+
+    LoadPalette(gUnknown_08E95A18, 0, 160);
+    LoadPalette(gPalette_83EDE24, 208, 32);
+}
+
+void sub_81064B8(void) {
+    CpuCopy16(gUnknown_08E95AB8, (void *) BG_SCREEN_ADDR(29), 20 * 32 * 2);
+    LoadSlotMachineWheelOverlay();
+}
+
+static void LoadSlotMachineWheelOverlay(void) {
+    s16 x, y, dx;
+    u16 *screen;
+
+    screen = (u16 *) BG_SCREEN_ADDR(30);
+
+    for (x = 4; x < 18; x += 5)
+    {
+        for (dx = 0; dx < 4; dx++)
+        {
+            screen[5 * 32 + dx + x] = 0x2051;
+            screen[13 * 32 + dx + x] = 0x2851;
+            screen[6 * 32 + dx + x] = 0x2061;
+            screen[12 * 32 + dx + x] = 0x2861;
+        }
+
+        screen[6 * 32 + x] = 0x20BE;
+        screen[12 * 32 + x] = 0x28BE;
+
+        for (y = 7; y <= 11; y++)
+        {
+            screen[y * 32 + x] = 0x20BF;
+        }
+    }
+}
+
+void sub_81065A8(s16 arg0, u16 arg1, u16 arg2, u16 arg3, u16 arg4) {
+    u16 *vram = (u16 *) BG_SCREEN_ADDR(29);
+
+    vram[15 * 32 + arg0] = arg1;
+    vram[15 * 32 + 1 + arg0] = arg2;
+    vram[16 * 32 + arg0] = arg3;
+    vram[16 * 32 + 1 + arg0] = arg4;
+}
+
+void sub_81065DC(void) {
+    s16 y, x;
+    u16 *screen;
+
+    CpuCopy16(gUnknown_08E95FB8, (void *) BG_SCREEN_ADDR(29), 20 * 32 * 2);
+
+    screen = (u16 *) BG_SCREEN_ADDR(30);
+    for (y = 0; y < 20; y++)
+    {
+        for (x = 0; x < 30; x++)
+        {
+            screen[x + y * 32] = 0;
+        }
+    }
+}