Fix makefile and decompile some functions.

Partial memory.c, save.c and bg_palette_buffer.c decompilation, along with some asm/ cleanup.

10 files changed, 326 insertions, 458 deletions

diff --git a/Makefile b/Makefile
index 0b86d1d..92e1edd 100755
--- a/Makefile
+++ b/Makefile
@@ -103,7 +103,6 @@ $(BUILD_DIR)/sym_%.ld: sym_%.txt
 
 $(C_OBJECTS): $(BUILD_DIR)/%.o: %.c
 	@$(CPP) $(CPPFLAGS) $< -o $(BUILD_DIR)/$*.i
-	echo $(CC1) $(CC1FLAGS) $(BUILD_DIR)/$*.i -o $(BUILD_DIR)/$*.s
 	@$(CC1) $(CC1FLAGS) $(BUILD_DIR)/$*.i -o $(BUILD_DIR)/$*.s
 	@printf ".text\n\t.align\t2, 0\n" >> $(BUILD_DIR)/$*.s
 	$(AS) $(ASFLAGS) -o $@ $(BUILD_DIR)/$*.s
diff --git a/asm/bg_palette_buffer.s b/asm/bg_palette_buffer.s
index 9b42ee5..9cafb43 100644
--- a/asm/bg_palette_buffer.s
+++ b/asm/bg_palette_buffer.s
@@ -9,7 +9,7 @@
 InitBGPaletteBuffer:
 	push {lr}
 	movs r2, 0
-	ldr r1, _0800465C
+	ldr r1, =gBGPaletteBuffer
 	movs r0, 0x80
 	lsls r0, 2
 _0800463E:
@@ -18,7 +18,7 @@ _0800463E:
 	subs r0, 0x1
 	cmp r0, 0
 	bne _0800463E
-	ldr r1, _08004660
+	ldr r1, =gBGPaletteUsed
 	movs r2, 0x1
 	adds r0, r1, 0
 	adds r0, 0x1F
@@ -30,8 +30,7 @@ _08004650:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_0800465C: .4byte gUnknown_20251F0
-_08004660: .4byte gUnknown_20251D0
+	.pool
 	thumb_func_end InitBGPaletteBuffer
 
 	thumb_func_start SetBGPaletteBufferColorRGB
@@ -47,7 +46,7 @@ _08004670:
 	ble _08004676
 	movs r2, 0x1F
 _08004676:
-	ldr r1, _080046CC
+	ldr r1, =gBGPaletteUsed
 	adds r0, r4, 0
 	cmp r4, 0
 	bge _08004680
@@ -59,7 +58,7 @@ _08004680:
 	strb r1, [r0]
 	cmp r3, 0
 	bne _080046D4
-	ldr r0, _080046D0
+	ldr r0, =gBGPaletteBuffer
 	lsls r1, r4, 1
 	adds r6, r1, r0
 	ldrb r0, [r5, 0x2]
@@ -94,10 +93,9 @@ _080046C0:
 	strh r1, [r6]
 	b _08004722
 	.align 2, 0
-_080046CC: .4byte gUnknown_20251D0
-_080046D0: .4byte gUnknown_20251F0
+	.pool
 _080046D4:
-	ldr r1, _08004728
+	ldr r1, =gBGPaletteBuffer
 	lsls r0, r4, 1
 	adds r7, r0, r1
 	ldrb r0, [r5, 0x2]
@@ -144,120 +142,7 @@ _08004722:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_08004728: .4byte gUnknown_20251F0
+	.pool
 	thumb_func_end SetBGPaletteBufferColorRGB
 
-	thumb_func_start SetBGPaletteBufferColorArray
-SetBGPaletteBufferColorArray:
-	push {lr}
-	adds r2, r0, 0
-	adds r3, r1, 0
-	ldr r1, _08004764
-	cmp r2, 0
-	bge _0800473A
-	adds r0, 0xF
-_0800473A:
-	asrs r0, 4
-	adds r0, r1
-	movs r1, 0x1
-	strb r1, [r0]
-	ldr r0, _08004768
-	lsls r2, 1
-	adds r2, r0
-	ldrb r1, [r3, 0x2]
-	lsrs r1, 3
-	lsls r1, 10
-	ldrb r0, [r3, 0x1]
-	lsrs r0, 3
-	lsls r0, 5
-	orrs r1, r0
-	ldrb r0, [r3]
-	lsrs r0, 3
-	orrs r0, r1
-	strh r0, [r2]
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08004764: .4byte gUnknown_20251D0
-_08004768: .4byte gUnknown_20251F0
-	thumb_func_end SetBGPaletteBufferColorArray
-
-	thumb_func_start SetBGPaletteBufferColor
-SetBGPaletteBufferColor:
-	push {lr}
-	adds r2, r0, 0
-	adds r3, r1, 0
-	ldr r1, _08004790
-	cmp r2, 0
-	bge _0800477A
-	adds r0, 0xF
-_0800477A:
-	asrs r0, 4
-	adds r0, r1
-	movs r1, 0x1
-	strb r1, [r0]
-	ldr r1, _08004794
-	lsls r0, r2, 1
-	adds r0, r1
-	ldrh r1, [r3]
-	strh r1, [r0]
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08004790: .4byte gUnknown_20251D0
-_08004794: .4byte gUnknown_20251F0
-	thumb_func_end SetBGPaletteBufferColor
-
-	thumb_func_start nullsub_4
-nullsub_4:
-	bx lr
-	thumb_func_end nullsub_4
-
-	thumb_func_start nullsub_5
-nullsub_5:
-	bx lr
-	thumb_func_end nullsub_5
-
-	thumb_func_start nullsub_143
-nullsub_143:
-	bx lr
-	thumb_func_end nullsub_143
-
-	thumb_func_start TransferBGPaletteBuffer
-TransferBGPaletteBuffer:
-	push {r4-r6,lr}
-	movs r6, 0
-	movs r4, 0
-	movs r5, 0xA0
-	lsls r5, 19
-_080047AE:
-	ldr r0, _080047DC
-	adds r1, r6, r0
-	ldrb r0, [r1]
-	cmp r0, 0
-	beq _080047CA
-	movs r0, 0
-	strb r0, [r1]
-	lsls r1, r4, 1
-	ldr r0, _080047E0
-	adds r1, r0
-	adds r0, r5, 0
-	movs r2, 0x20
-	bl CpuCopy
-_080047CA:
-	adds r6, 0x1
-	adds r5, 0x20
-	adds r4, 0x10
-	ldr r0, _080047E4
-	cmp r4, r0
-	ble _080047AE
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080047DC: .4byte gUnknown_20251D0
-_080047E0: .4byte gUnknown_20251F0
-_080047E4: .4byte 0x000001ff
-	thumb_func_end TransferBGPaletteBuffer
-
-	.align 2, 0 @ Don't pad with nop.
+.align 2, 0 @ Don't pad with nop.
\ No newline at end of file
diff --git a/asm/input.s b/asm/input.s
index 7516a30..d439867 100644
--- a/asm/input.s
+++ b/asm/input.s
@@ -7,24 +7,24 @@
 
 	thumb_func_start InitInput
 InitInput:
-	ldr r0, _08004840
+	ldr r0, =gUnknown_20255F0
 	movs r3, 0
 	movs r2, 0
 	strh r2, [r0]
 	strh r2, [r0, 0x2]
 	strh r2, [r0, 0x4]
 	strh r2, [r0, 0x6]
-	ldr r0, _08004844
+	ldr r0, =gUnknown_2025638
 	strh r2, [r0]
 	strh r2, [r0, 0x2]
 	strh r2, [r0, 0x4]
 	strh r2, [r0, 0x6]
-	ldr r1, _08004848
-	ldr r0, _0800484C
+	ldr r1, =gUnknown_202562C
+	ldr r0, =0x4a14c1
 	str r0, [r1]
-	ldr r0, _08004850
+	ldr r0, =gUnknown_2025600
 	str r2, [r0, 0x20]
-	ldr r1, _08004854
+	ldr r1, =0xffff
 	strh r1, [r0]
 	movs r1, 0x1
 	negs r1, r1
@@ -46,25 +46,19 @@ InitInput:
 	strb r3, [r1]
 	adds r0, 0x29
 	strb r3, [r0]
-	ldr r0, _08004858
+	ldr r0, =gUnknown_2025668
 	strh r2, [r0]
 	strh r2, [r0, 0x2]
 	bx lr
 	.align 2, 0
-_08004840: .4byte gUnknown_20255F0
-_08004844: .4byte gUnknown_2025638
-_08004848: .4byte gUnknown_202562C
-_0800484C: .4byte 0x004a14c1
-_08004850: .4byte gUnknown_2025600
-_08004854: .4byte 0x0000ffff
-_08004858: .4byte gUnknown_2025668
+	.pool
 	thumb_func_end InitInput
 
 	thumb_func_start sub_800485C
 sub_800485C:
 	push {r4,r5,lr}
-	ldr r2, _080048A8
-	ldr r1, _080048AC
+	ldr r2, =gUnknown_2025638
+	ldr r1, =gUnknown_20255F0
 	adds r0, r2, 0
 	ldm r0!, {r3-r5}
 	stm r1!, {r3-r5}
@@ -76,8 +70,8 @@ sub_800485C:
 	strh r0, [r2, 0x2]
 	strh r0, [r2, 0x4]
 	strh r0, [r2, 0x6]
-	ldr r0, _080048B0
-	ldr r1, _080048B4
+	ldr r0, =gUnknown_2025600
+	ldr r1, =0xffff
 	strh r1, [r0]
 	movs r1, 0x1
 	negs r1, r1
@@ -101,10 +95,7 @@ sub_800485C:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_080048A8: .4byte gUnknown_2025638
-_080048AC: .4byte gUnknown_20255F0
-_080048B0: .4byte gUnknown_2025600
-_080048B4: .4byte 0x0000ffff
+	.pool 
 	thumb_func_end sub_800485C
 
 	thumb_func_start sub_80048B8
@@ -145,49 +136,44 @@ sub_80048CC:
 
 	thumb_func_start sub_80048D0
 sub_80048D0:
-	ldr r1, _080048E8
+	ldr r1, =gUnknown_20255F0
 	movs r0, 0
 	strh r0, [r1, 0x4]
-	ldr r1, _080048EC
+	ldr r1, =gUnknown_2025648
 	str r0, [r1, 0xC]
 	strh r0, [r1, 0x8]
-	ldr r1, _080048F0
-	ldr r0, _080048F4
+	ldr r1, =gUnknown_2025668
+	ldr r0, =0x3e7
 	strh r0, [r1]
 	strh r0, [r1, 0x2]
 	bx lr
 	.align 2, 0
-_080048E8: .4byte gUnknown_20255F0
-_080048EC: .4byte gUnknown_2025648
-_080048F0: .4byte gUnknown_2025668
-_080048F4: .4byte 0x000003e7
+	.pool
 	thumb_func_end sub_80048D0
 
 	thumb_func_start sub_80048F8
 sub_80048F8:
-	ldr r0, _08004908
+	ldr r0, =gUnknown_20255F0
 	movs r1, 0
 	strh r1, [r0, 0x2]
-	ldr r0, _0800490C
+	ldr r0, =gUnknown_2025638
 	strh r1, [r0, 0x2]
-	ldr r0, _08004910
+	ldr r0, =gUnknown_2025648
 	strh r1, [r0, 0x2]
 	bx lr
 	.align 2, 0
-_08004908: .4byte gUnknown_20255F0
-_0800490C: .4byte gUnknown_2025638
-_08004910: .4byte gUnknown_2025648
+	.pool
 	thumb_func_end sub_80048F8
 
 	thumb_func_start sub_8004914
 sub_8004914:
-	ldr r0, _0800494C
+	ldr r0, =gUnknown_2025600
 	movs r1, 0x5
 	str r1, [r0, 0x20]
 	movs r2, 0
 	movs r1, 0
 	strh r1, [r0, 0x24]
-	ldr r1, _08004950
+	ldr r1, =0xffff
 	strh r1, [r0]
 	movs r1, 0x1
 	negs r1, r1
@@ -209,15 +195,14 @@ sub_8004914:
 	strb r2, [r0]
 	bx lr
 	.align 2, 0
-_0800494C: .4byte gUnknown_2025600
-_08004950: .4byte 0x0000ffff
+	.pool
 	thumb_func_end sub_8004914
 
 	thumb_func_start UpdateInput
 UpdateInput:
 	push {r4-r6,lr}
-	ldr r4, _08004998
-	ldr r5, _0800499C
+	ldr r4, =gUnknown_2025658
+	ldr r5, =gUnknown_2025648
 	adds r1, r4, 0
 	adds r0, r5, 0
 	ldm r0!, {r2,r3,r6}
@@ -249,8 +234,7 @@ UpdateInput:
 	str r0, [r5, 0xC]
 	b _080049AC
 	.align 2, 0
-_08004998: .4byte gUnknown_2025658
-_0800499C: .4byte gUnknown_2025648
+	.pool
 _080049A0:
 	strh r2, [r5, 0x8]
 	movs r0, 0x1
@@ -260,7 +244,7 @@ _080049A8:
 	str r0, [r5, 0xC]
 	strh r0, [r5, 0x8]
 _080049AC:
-	ldr r0, _080049C4
+	ldr r0, =gUnknown_2025648
 	ldr r2, [r0, 0xC]
 	adds r3, r0, 0
 	cmp r2, 0x1
@@ -273,7 +257,7 @@ _080049AC:
 	strh r1, [r3, 0x4]
 	b _080049E0
 	.align 2, 0
-_080049C4: .4byte gUnknown_2025648
+	.pool
 _080049C8:
 	cmp r2, 0x30
 	bne _080049DC
@@ -300,7 +284,7 @@ _080049E0:
 	lsrs r2, r0, 16
 	cmp r2, 0
 	beq _08004A0C
-	ldr r0, _08004A08
+	ldr r0, =gUnknown_2025668
 	ldrh r2, [r0]
 	movs r4, 0
 	ldrsh r1, [r0, r4]
@@ -311,9 +295,9 @@ _080049E0:
 	strh r0, [r4]
 	b _08004A20
 	.align 2, 0
-_08004A08: .4byte gUnknown_2025668
+	.pool
 _08004A0C:
-	ldr r1, _08004A44
+	ldr r1, =gUnknown_2025668
 	ldrh r0, [r1]
 	subs r0, 0x2
 	lsls r0, 16
@@ -343,7 +327,7 @@ _08004A20:
 	strh r0, [r4, 0x2]
 	b _08004A5E
 	.align 2, 0
-_08004A44: .4byte gUnknown_2025668
+	.pool
 _08004A48:
 	ldrh r0, [r4, 0x2]
 	subs r0, 0x2
@@ -358,7 +342,7 @@ _08004A48:
 _08004A5C:
 	strh r2, [r4, 0x2]
 _08004A5E:
-	ldr r2, _08004A94
+	ldr r2, =gUnknown_2025638
 	ldrh r0, [r2]
 	ldrh r1, [r3]
 	orrs r0, r1
@@ -375,9 +359,9 @@ _08004A5E:
 	ldrh r1, [r3, 0x6]
 	orrs r0, r1
 	strh r0, [r2, 0x6]
-	ldr r2, _08004A98
+	ldr r2, =gUnknown_202562C
 	ldrh r0, [r3]
-	ldr r1, _08004A9C
+	ldr r1, =0x054a1c41
 	orrs r0, r1
 	ldr r1, [r2]
 	muls r0, r1
@@ -386,9 +370,7 @@ _08004A5E:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_08004A94: .4byte gUnknown_2025638
-_08004A98: .4byte gUnknown_202562C
-_08004A9C: .4byte 0x054a1c41
+	.pool
 	thumb_func_end UpdateInput
 
 	.align 2, 0 @ Don't pad with nop.
diff --git a/asm/memory.s b/asm/memory.s
index e364f1b..418056c 100644
--- a/asm/memory.s
+++ b/asm/memory.s
@@ -4,177 +4,21 @@
 	.syntax unified
 
 	.text
-
-	thumb_func_start InitHeap
-InitHeap:
-	push {lr}
-	bl InitHeapInternal
-	pop {r0}
-	bx r0
-	thumb_func_end InitHeap
-
-	thumb_func_start MemoryClear8
-MemoryClear8:
-	push {lr}
-	cmp r1, 0
-	ble _08002EAA
-	movs r2, 0
-_08002EA0:
-	subs r1, 0x1
-	strb r2, [r0]
-	adds r0, 0x1
-	cmp r1, 0
-	bgt _08002EA0
-_08002EAA:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryClear8
-
-	thumb_func_start MemoryClear16
-MemoryClear16:
-	push {lr}
-	cmp r1, 0
-	ble _08002EC2
-	movs r2, 0
-_08002EB8:
-	subs r1, 0x2
-	strh r2, [r0]
-	adds r0, 0x2
-	cmp r1, 0
-	bgt _08002EB8
-_08002EC2:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryClear16
-
-	thumb_func_start MemoryClear32
-MemoryClear32:
-	push {lr}
-	bl CpuClear
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryClear32
-
-	thumb_func_start MemoryFill8
-MemoryFill8:
-	push {lr}
-	lsls r1, 24
-	lsrs r1, 24
-	cmp r2, 0
-	ble _08002EE8
-_08002EDE:
-	subs r2, 0x1
-	strb r1, [r0]
-	adds r0, 0x1
-	cmp r2, 0
-	bgt _08002EDE
-_08002EE8:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryFill8
-
-	thumb_func_start MemoryFill16
-MemoryFill16:
-	push {lr}
-	lsls r1, 16
-	lsrs r1, 16
-	cmp r2, 0
-	ble _08002F00
-_08002EF6:
-	subs r2, 0x2
-	strh r1, [r0]
-	adds r0, 0x2
-	cmp r2, 0
-	bgt _08002EF6
-_08002F00:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryFill16
-
-	thumb_func_start MemoryFill32
-MemoryFill32:
-	push {lr}
-	cmp r2, 0
-	ble _08002F12
-_08002F0A:
-	subs r2, 0x4
-	stm r0!, {r1}
-	cmp r2, 0
-	bgt _08002F0A
-_08002F12:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryFill32
-
-	thumb_func_start MemoryCopy8
-MemoryCopy8:
-	push {lr}
-	adds r3, r0, 0
-	cmp r2, 0
-	ble _08002F2E
-_08002F20:
-	subs r2, 0x1
-	ldrb r0, [r1]
-	strb r0, [r3]
-	adds r1, 0x1
-	adds r3, 0x1
-	cmp r2, 0
-	bgt _08002F20
-_08002F2E:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryCopy8
-
-	thumb_func_start MemoryCopy16
-MemoryCopy16:
-	push {lr}
-	adds r3, r0, 0
-	cmp r2, 0
-	ble _08002F4A
-_08002F3C:
-	subs r2, 0x2
-	ldrh r0, [r1]
-	strh r0, [r3]
-	adds r1, 0x2
-	adds r3, 0x2
-	cmp r2, 0
-	bgt _08002F3C
-_08002F4A:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryCopy16
-
-	thumb_func_start MemoryCopy32
-MemoryCopy32:
-	push {lr}
-	adds r3, r0, 0
-	cmp r2, 0
-	ble _08002F62
-_08002F58:
-	subs r2, 0x4
-	ldm r1!, {r0}
-	stm r3!, {r0}
-	cmp r2, 0
-	bgt _08002F58
-_08002F62:
-	pop {r0}
-	bx r0
-	thumb_func_end MemoryCopy32
-
+	
 	thumb_func_start InitHeapInternal
 InitHeapInternal:
 	push {lr}
 	sub sp, 0x8
-	ldr r0, _08002F90
+	ldr r0, =gHeap
 	str r0, [sp]
 	movs r0, 0x90
 	lsls r0, 10
 	str r0, [sp, 0x4]
-	ldr r1, _08002F94
+	ldr r1, =gUnknown_2000EA8
 	movs r0, 0
 	str r0, [r1]
-	ldr r0, _08002F98
-	ldr r2, _08002F9C
+	ldr r0, =gUnknown_2000EB0
+	ldr r2, =gHeapHeader
 	mov r1, sp
 	movs r3, 0x20
 	bl DoInitHeap
@@ -182,10 +26,7 @@ InitHeapInternal:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_08002F90: .4byte gUnknown_20011D0
-_08002F94: .4byte gUnknown_2000EA8
-_08002F98: .4byte gUnknown_2000EB0
-_08002F9C: .4byte gUnknown_2000ED0
+	.pool
 	thumb_func_end InitHeapInternal
 
 	thumb_func_start DoInitHeap
@@ -201,8 +42,8 @@ DoInitHeap:
 	mov r5, r9
 	ands r5, r4
 	mov r9, r5
-	ldr r6, _08002FFC
-	ldr r4, _08003000
+	ldr r6, =gUnknown_2000E88
+	ldr r4, =gUnknown_2000EA8
 	mov r8, r4
 	ldr r5, [r4]
 	lsls r4, r5, 2
@@ -237,8 +78,7 @@ DoInitHeap:
 	pop {r0}
 	bx r0
 	.align 2, 0
-_08002FFC: .4byte gUnknown_2000E88
-_08003000: .4byte gUnknown_2000EA8
+	.pool
 	thumb_func_end DoInitHeap
 
 	thumb_func_start InitSubHeap
@@ -361,7 +201,7 @@ _080030C2:
 _080030CC:
 	movs r7, 0x1
 	negs r7, r7
-	ldr r1, _08003100
+	ldr r1, =0x24001
 	movs r4, 0
 	ldr r3, [r5, 0x8]
 	ldr r2, [r5, 0xC]
@@ -389,7 +229,7 @@ _080030FC:
 	adds r0, r7, 0
 	b _08003108
 	.align 2, 0
-_08003100: .4byte 0x00024001
+	.pool
 _08003104:
 	movs r0, 0x1
 	negs r0, r0
@@ -454,7 +294,7 @@ _0800315E:
 _08003168:
 	movs r7, 0x1
 	negs r7, r7
-	ldr r6, _080031A4
+	ldr r6, =0x24001
 	ldr r0, [r4, 0xC]
 	subs r3, r0, 0x1
 	lsls r0, r3, 1
@@ -486,7 +326,7 @@ _080031A0:
 	adds r0, r7, 0
 	b _080031AC
 	.align 2, 0
-_080031A4: .4byte 0x00024001
+	.pool
 _080031A8:
 	movs r0, 0x1
 	negs r0, r0
@@ -561,13 +401,12 @@ _08003222:
 	str r2, [r1, 0xC]
 	cmp r2, r8
 	ble _08003240
-	ldr r0, _08003238
-	ldr r1, _0800323C
+	ldr r0, =gUnknown_80B7EB8
+	ldr r1, =gUnknown_80B7EC4
 	mov r3, r8
 	bl FatalError
 	.align 2, 0
-_08003238: .4byte gUnknown_80B7EB8
-_0800323C: .4byte gUnknown_80B7EC4
+	.pool
 _08003240:
 	ldr r0, [sp, 0xC]
 	add r0, r9
@@ -671,13 +510,12 @@ _080032F6:
 	str r2, [r7, 0xC]
 	cmp r2, r8
 	ble _08003314
-	ldr r0, _0800330C
-	ldr r1, _08003310
+	ldr r0, =gUnknown_80B7EFC
+	ldr r1, =gUnknown_80B7EC4
 	mov r3, r8
 	bl FatalError
 	.align 2, 0
-_0800330C: .4byte gUnknown_80B7EFC
-_08003310: .4byte gUnknown_80B7EC4
+	.pool
 _08003314:
 	ldr r0, [r4, 0x10]
 	ldr r1, [sp, 0x10]
@@ -717,7 +555,7 @@ _LocateSet:
 	adds r6, r2, 0
 	cmp r5, 0
 	bne _0800335C
-	ldr r5, _08003390
+	ldr r5, =gUnknown_2000EB0
 _0800335C:
 	asrs r4, r6, 8
 	movs r0, 0x1
@@ -743,7 +581,7 @@ _0800335C:
 	ldr r0, [r0, 0xC]
 	b _080033CC
 	.align 2, 0
-_08003390: .4byte gUnknown_2000EB0
+	.pool
 _08003394:
 	adds r0, r5, 0
 	adds r1, r4, 0
@@ -760,16 +598,15 @@ _08003394:
 	ldr r0, [r0, 0xC]
 	b _080033CC
 _080033B4:
-	ldr r0, _080033C4
-	ldr r1, _080033C8
+	ldr r0, =gUnknown_80B7F14
+	ldr r1, =gUnknown_80B7F20
 	str r4, [sp]
 	str r6, [sp, 0x4]
 	adds r2, r5, 0
 	adds r3, r7, 0
 	bl FatalError
 	.align 2, 0
-_080033C4: .4byte gUnknown_80B7F14
-_080033C8: .4byte gUnknown_80B7F20
+	.pool
 _080033CC:
 	add sp, 0x8
 	pop {r4-r7}
@@ -782,25 +619,25 @@ MemoryAlloc:
 	push {lr}
 	adds r3, r0, 0
 	adds r2, r1, 0
-	ldr r0, _080033E8
+	ldr r0, =gUnknown_2000EB0
 	adds r1, r3, 0
 	bl DoAlloc
 	pop {r1}
 	bx r1
 	.align 2, 0
-_080033E8: .4byte gUnknown_2000EB0
+	.pool
 	thumb_func_end MemoryAlloc
 
 	thumb_func_start MemoryFree
 MemoryFree:
 	push {lr}
 	adds r1, r0, 0
-	ldr r0, _080033FC
+	ldr r0, =gUnknown_2000EB0
 	bl DoFree
 	pop {r0}
 	bx r0
 	.align 2, 0
-_080033FC: .4byte gUnknown_2000EB0
+	.pool
 	thumb_func_end MemoryFree
 
 	thumb_func_start MemoryLocate_LocalCreate
@@ -813,7 +650,7 @@ MemoryLocate_LocalCreate:
 	adds r6, r3, 0
 	cmp r4, 0
 	bne _08003412
-	ldr r4, _0800342C
+	ldr r4, =gUnknown_2000EB0
 _08003412:
 	adds r0, r4, 0
 	movs r1, 0x9
@@ -822,14 +659,12 @@ _08003412:
 	adds r1, r0, 0
 	cmp r1, 0
 	bge _08003438
-	ldr r0, _08003430
-	ldr r1, _08003434
+	ldr r0, =gUnknown_80B7F88
+	ldr r1, =gUnknown_80B7F94
 	adds r2, r5, 0
 	bl FatalError
 	.align 2, 0
-_0800342C: .4byte gUnknown_2000EB0
-_08003430: .4byte gUnknown_80B7F88
-_08003434: .4byte gUnknown_80B7F94
+	.pool
 _08003438:
 	str r6, [sp]
 	adds r0, r4, 0
@@ -893,11 +728,11 @@ _080034A2:
 	movs r0, 0
 	mov r12, r0
 	movs r3, 0
-	ldr r6, _080034E0
+	ldr r6, =gUnknown_2000EA8
 	ldr r0, [r6]
 	cmp r12, r0
 	bge _080034F2
-	ldr r5, _080034E4
+	ldr r5, =gUnknown_2000E88
 	adds r1, r6, 0
 	adds r7, r5, 0
 	movs r2, 0
@@ -911,7 +746,7 @@ _080034BC:
 	str r0, [r1]
 	cmp r3, r0
 	bge _080034F8
-	ldr r1, _080034E0
+	ldr r1, =gUnknown_2000EA8
 	adds r2, r7
 _080034D2:
 	ldr r0, [r2, 0x4]
@@ -922,8 +757,7 @@ _080034D2:
 	blt _080034D2
 	b _080034F8
 	.align 2, 0
-_080034E0: .4byte gUnknown_2000EA8
-_080034E4: .4byte gUnknown_2000E88
+	.pool 
 _080034E8:
 	adds r2, 0x4
 	adds r3, 0x1
@@ -966,7 +800,7 @@ DoFree:
 	adds r4, r0, 0
 	cmp r4, 0
 	bne _0800352E
-	ldr r4, _080035D4
+	ldr r4, =gUnknown_2000EB0
 _0800352E:
 	cmp r1, 0
 	beq _080035E4
@@ -1056,7 +890,7 @@ _080035BA:
 	blt _080035BA
 	b _080035E4
 	.align 2, 0
-_080035D4: .4byte gUnknown_2000EB0
+	.pool
 _080035D8:
 	movs r0, 0x1
 	add r8, r0
diff --git a/asm/save.s b/asm/save.s
index f88c219..b4e748f 100644
--- a/asm/save.s
+++ b/asm/save.s
@@ -5,74 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8011C1C
-sub_8011C1C:
-	ldr r0, _08011C24
-	ldr r0, [r0]
-	bx lr
-	.align 2, 0
-_08011C24: .4byte gUnknown_203B17C
-	thumb_func_end sub_8011C1C
-
-	thumb_func_start sub_8011C28
-sub_8011C28:
-	ldr r1, _08011C30
-	str r0, [r1]
-	bx lr
-	.align 2, 0
-_08011C30: .4byte gUnknown_203B17C
-	thumb_func_end sub_8011C28
-
-	thumb_func_start sub_8011C34
-sub_8011C34:
-	ldr r0, _08011C3C
-	ldr r0, [r0]
-	bx lr
-	.align 2, 0
-_08011C3C: .4byte gUnknown_202DE28
-	thumb_func_end sub_8011C34
-
-	thumb_func_start sub_8011C40
-sub_8011C40:
-	ldr r1, _08011C48
-	str r0, [r1]
-	bx lr
-	.align 2, 0
-_08011C48: .4byte gUnknown_202DE28
-	thumb_func_end sub_8011C40
-
-	thumb_func_start sub_8011C4C
-sub_8011C4C:
-	ldr r0, _08011C54
-	ldr r0, [r0]
-	bx lr
-	.align 2, 0
-_08011C54: .4byte gUnknown_203B180
-	thumb_func_end sub_8011C4C
-
-	thumb_func_start sub_8011C58
-sub_8011C58:
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r2, 0
-	lsrs r1, 2
-	cmp r1, 0x1
-	ble _08011C72
-	adds r3, r4, 0x4
-	subs r1, 0x1
-_08011C68:
-	ldm r3!, {r0}
-	adds r2, r0
-	subs r1, 0x1
-	cmp r1, 0
-	bne _08011C68
-_08011C72:
-	str r2, [r4]
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8011C58
-
 	thumb_func_start sub_8011C7C
 sub_8011C7C:
 	push {r4,lr}
diff --git a/ld_script.txt b/ld_script.txt
index 3bc7a22..d1bbded 100755
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -48,11 +48,13 @@ SECTIONS {
         asm/code.o(.text);
         asm/event_flag.o(.text);
         asm/code_8002774.o(.text);
+        src/memory.o(.text);
         asm/memory.o(.text);
         asm/code_80035F0.o(.text);
         src/other_random.o(.text);
         src/util.o(.text);
         asm/bg_palette_buffer.o(.text);
+        src/bg_palette_buffer.o(.text);
         asm/input.o(.text);
         asm/code_8004AA0.o(.text);
         asm/sprite.o(.text);
@@ -66,6 +68,7 @@ SECTIONS {
         asm/code_800B540.o(.text);
         src/flash.o(.text);
         asm/code_800D090.o(.text);
+        src/save.o(.text);
         asm/save.o(.text);
         asm/code_8012A18.o(.text);
         asm/m4a.o(.text);
diff --git a/src/bg_palette_buffer.c b/src/bg_palette_buffer.c
new file mode 100644
index 0000000..5e078a0
--- /dev/null
+++ b/src/bg_palette_buffer.c
@@ -0,0 +1,102 @@
+#include "global.h"
+
+extern u16 gBGPaletteBuffer[512];
+extern bool8 gBGPaletteUsed[32];
+
+extern void CpuCopy(void* src, void* dest, u32 size);
+
+/*
+void InitBGPaletteBuffer(void)
+{
+    u16 color = 0;
+    u16* ptr;
+    u32 i;
+    bool8 paletteUsed;
+
+    u8* p;
+
+    ptr = gUnknown_20251F0;
+
+    i = 0x80;
+    i <<= 2;
+
+    do {
+        *ptr++ = color;
+        i--;
+    } while (i);
+
+    paletteUsed = TRUE;
+
+    p = gUnknown_20251D0;
+    p += 31;
+
+    do
+        *p-- = paletteUsed;
+    while ((s32) p >= (s32) &gUnknown_20251D0);
+}
+void SetBGPaletteBufferColorRGB(s32 index, u8 *RGBArray, s32 a3, u8 *a4)
+{
+    if (a3 < 0) {
+        a3 = 0;
+    }
+    if (a3 > 31) {
+        a3 = 31;
+    }
+    gBGPaletteUsed[index / 16] = 1;
+    if (!a4) {
+        gBGPaletteBuffer[index] = ((RGBArray[2] * a3 / 256 & 0x1F) << 10) | ((RGBArray[1] * a3 / 256 & 0x1F) << 5) | (RGBArray[0] * a3 / 256 & 0x1F);
+    }
+    else
+    {
+        gBGPaletteBuffer[index] = ((a4[4 * RGBArray[2] + 2] * a3 / 256 & 0x1F) << 10) | ((a4[4 * RGBArray[1] + 1] * a3 / 256 & 0x1F) << 5) | (a4[4 * RGBArray[0]] * a3 / 256 & 0x1F);
+    }
+}
+*/
+
+void SetBGPaletteBufferColorArray(s32 index, u8 *colorArray)
+{
+    gBGPaletteUsed[index / 16] = TRUE;
+    gBGPaletteBuffer[index] = (colorArray[2] >> 3) << 10 | (colorArray[1] >> 3) << 5 | colorArray[0] >> 3;
+}
+
+void SetBGPaletteBufferColor(s32 index, u16 *color)
+{
+    gBGPaletteUsed[index / 16] = TRUE;
+    gBGPaletteBuffer[index] = *color;
+}
+
+void nullsub_4()
+{
+
+}
+void nullsub_5(void)
+{
+
+}
+void nullsub_143(void)
+{
+
+}
+
+void TransferBGPaletteBuffer(void)
+{
+    u32 i;
+    s32 paletteBufferIndex;
+    u16 *dest;
+
+    i = 0;
+    paletteBufferIndex = 0;
+    dest = (u16 *)PLTT;
+    do
+    {
+        if (gBGPaletteUsed[i])
+        {
+            gBGPaletteUsed[i] = 0;
+            CpuCopy(dest, &gBGPaletteBuffer[paletteBufferIndex], sizeof(u16) * 16);
+        }
+        ++i;
+        dest += 16;
+        paletteBufferIndex += 16;
+    }
+    while ( paletteBufferIndex < 512 );
+}
\ No newline at end of file
diff --git a/src/memory.c b/src/memory.c
new file mode 100644
index 0000000..1ccbe54
--- /dev/null
+++ b/src/memory.c
@@ -0,0 +1,85 @@
+#include "global.h"
+
+extern void InitHeapInternal(void);
+extern void CpuClear(u32 *dest, s32 size);
+
+void InitHeap(void)
+{
+    InitHeapInternal();
+}
+
+void MemoryClear8(u8 *dest, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 1;
+        *dest++ = 0;
+    }
+}
+
+void MemoryClear16(u16 *dest, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 2;
+        *dest++ = 0;
+    }
+}
+void MemoryClear32(u32 *dest, s32 size)
+{
+    CpuClear(dest, size);
+}
+
+void MemoryFill8(u8 *dest, u8 value, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 1;
+        *dest++ = value;
+    }
+}
+
+void MemoryFill16(u16 *dest, u16 value, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 2;
+        *dest++ = value;
+    }
+}
+
+void MemoryFill32(u32 *dest, u32 value, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 4;
+        *dest++ = value;
+    }
+}
+
+void MemoryCopy8(u8 *dest, u8 *src, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 1;
+        *dest++ = *src++;
+    }
+}
+
+void MemoryCopy16(u16 *dest, u16 *src, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 2;
+        *dest++ = *src++;
+    }
+}
+
+void MemoryCopy32(u32 *dest, u32 *src, s32 size)
+{
+    while (size > 0)
+    {
+        size -= 4;
+        *dest++ = *src++;
+    }
+}
\ No newline at end of file
diff --git a/src/save.c b/src/save.c
new file mode 100644
index 0000000..575d4f1
--- /dev/null
+++ b/src/save.c
@@ -0,0 +1,45 @@
+#include "global.h"
+
+extern u32 gUnknown_203B17C;
+extern u32 gUnknown_203B180;
+extern u32 gUnknown_202DE28;
+
+u32 sub_8011C1C(void)
+{
+    return gUnknown_203B17C;
+}
+
+void sub_8011C28(u32 in)
+{
+    gUnknown_203B17C = in;
+}
+
+u32 sub_8011C34(void)
+{
+    return gUnknown_202DE28;
+}
+
+void sub_8011C40(u32 in)
+{
+    gUnknown_202DE28 = in;
+}
+
+u32 sub_8011C4C(void)
+{
+    return gUnknown_203B180;
+}
+
+void sub_8011C58(u32 *out, u32 len)
+{
+    u32 sum = 0;
+    s32 i = len / 4;
+    if (i > 1)
+    {
+        u32 *ptr = &out[1];
+        --i;
+        do
+            sum += *ptr++;
+        while (--i);
+    }
+    *out = sum;
+}
\ No newline at end of file
diff --git a/sym_ewram.txt b/sym_ewram.txt
index f235a49..fb753c9 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -24,16 +24,16 @@ gUnknown_2000EA8 = .; /* 2000EA8 */
 gUnknown_2000EB0 = .; /* 2000EB0 */
 	. += 0x20;
 
-gUnknown_2000ED0 = .; /* 2000ED0 */
+gHeapHeader = .; /* 2000ED0 */
 	. += 0x300;
 
-gUnknown_20011D0 = .; /* 20011D0 */
+gHeap = .; /* 20011D0 */
 	. += 0x24000;
 
-gUnknown_20251D0 = .; /* 20251D0 */
+gBGPaletteUsed = .; /* 20251D0 */
 	. += 0x20;
 
-gUnknown_20251F0 = .; /* 20251F0 */
+gBGPaletteBuffer = .; /* 20251F0 */
 	. += 0x400;
 
 gUnknown_20255F0 = .; /* 20255F0 */
@@ -385,7 +385,8 @@ gUnknown_202DE24 = .; /* 202DE24 */
 	. += 0x4;
 
 gUnknown_202DE28 = .; /* 202DE28 */
-	. += 0x8;
+	. += 0x4;
+	. = ALIGN(16);
 
 gUnknown_202DE30 = .; /* 202DE30 */
 	. += 0x28;