decompile sub_807D424 - sub_807DBE8

3 files changed, 400 insertions, 1147 deletions

diff --git a/asm/field_weather.s b/asm/field_weather.s
index b6384cbe1..2d0d9a1d1 100644
--- a/asm/field_weather.s
+++ b/asm/field_weather.s
@@ -5,1138 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_807D424
-sub_807D424: @ 807D424
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0xC
-	adds r3, r1, 0
-	lsls r0, 24
-	lsrs r7, r0, 24
-	lsls r3, 16
-	lsrs r3, 16
-	mov r0, sp
-	strh r3, [r0]
-	movs r1, 0x80
-	lsls r1, 1
-	movs r0, 0
-	adds r2, r7, 0
-	bl BlendPalette
-	ldr r0, [sp]
-	lsls r1, r0, 27
-	lsrs r1, 27
-	str r1, [sp, 0x4]
-	lsls r1, r0, 22
-	lsrs r1, 27
-	str r1, [sp, 0x8]
-	lsls r0, 17
-	lsrs r0, 27
-	mov r10, r0
-	movs r4, 0x10
-_0807D460:
-	lsls r0, r4, 24
-	lsrs r0, 24
-	bl sub_807D574
-	lsls r0, 24
-	cmp r0, 0
-	beq _0807D510
-	adds r0, r4, 0x1
-	lsls r1, r0, 20
-	lsrs r1, 16
-	mov r12, r1
-	lsls r1, r4, 20
-	lsrs r6, r1, 16
-	mov r9, r0
-	cmp r6, r12
-	bcs _0807D524
-	movs r0, 0x1C
-	mov r8, r0
-_0807D484:
-	lsls r5, r6, 1
-	ldr r0, _0807D508 @ =gPlttBufferUnfaded
-	adds r0, r5, r0
-	ldr r2, [r0]
-	lsls r4, r2, 27
-	lsrs r4, 27
-	lsls r3, r2, 22
-	lsrs r3, 27
-	lsls r2, 17
-	lsrs r2, 27
-	mov r0, r8
-	subs r1, r0, r4
-	lsls r0, r1, 1
-	adds r0, r1
-	asrs r0, 2
-	adds r4, r0
-	lsls r4, 24
-	lsrs r4, 24
-	movs r1, 0x1F
-	subs r1, r3
-	lsls r0, r1, 1
-	adds r0, r1
-	asrs r0, 2
-	adds r3, r0
-	lsls r3, 24
-	lsrs r3, 24
-	mov r0, r8
-	subs r1, r0, r2
-	lsls r0, r1, 1
-	adds r0, r1
-	asrs r0, 2
-	adds r2, r0
-	lsls r2, 24
-	lsrs r2, 24
-	ldr r1, [sp, 0x4]
-	subs r0, r1, r4
-	muls r0, r7
-	asrs r0, 4
-	adds r4, r0
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r1, [sp, 0x8]
-	subs r0, r1, r3
-	muls r0, r7
-	asrs r0, 4
-	adds r3, r0
-	lsls r3, 24
-	mov r1, r10
-	subs r0, r1, r2
-	muls r0, r7
-	asrs r0, 4
-	adds r2, r0
-	lsls r2, 24
-	ldr r0, _0807D50C @ =gPlttBufferFaded
-	adds r5, r0
-	lsrs r2, 14
-	lsrs r3, 19
-	orrs r2, r3
-	orrs r2, r4
-	strh r2, [r5]
-	adds r0, r6, 0x1
-	lsls r0, 16
-	lsrs r6, r0, 16
-	cmp r6, r12
-	bcc _0807D484
-	b _0807D524
-	.align 2, 0
-_0807D508: .4byte gPlttBufferUnfaded
-_0807D50C: .4byte gPlttBufferFaded
-_0807D510:
-	lsls r0, r4, 20
-	lsrs r0, 16
-	mov r1, sp
-	ldrh r3, [r1]
-	movs r1, 0x10
-	adds r2, r7, 0
-	bl BlendPalette
-	adds r4, 0x1
-	mov r9, r4
-_0807D524:
-	mov r1, r9
-	lsls r0, r1, 16
-	lsrs r4, r0, 16
-	cmp r4, 0x1F
-	bls _0807D460
-	add sp, 0xC
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807D424
-
-	thumb_func_start sub_807D540
-sub_807D540: @ 807D540
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r2, r0, 24
-	ldr r3, _0807D568 @ =gUnknown_0202F7E8
-	ldr r0, _0807D56C @ =0x000006fa
-	adds r1, r3, r0
-	ldrb r0, [r1]
-	cmp r0, 0x5
-	bhi _0807D562
-	ldr r4, _0807D570 @ =0x000006f4
-	adds r0, r3, r4
-	ldrb r3, [r1]
-	adds r0, r3
-	strb r2, [r0]
-	ldrb r0, [r1]
-	adds r0, 0x1
-	strb r0, [r1]
-_0807D562:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D568: .4byte gUnknown_0202F7E8
-_0807D56C: .4byte 0x000006fa
-_0807D570: .4byte 0x000006f4
-	thumb_func_end sub_807D540
-
-	thumb_func_start sub_807D574
-sub_807D574: @ 807D574
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r3, r0, 24
-	movs r1, 0
-	ldr r2, _0807D59C @ =gUnknown_0202F7E8
-	ldr r4, _0807D5A0 @ =0x000006fa
-	adds r0, r2, r4
-	ldrb r0, [r0]
-	cmp r1, r0
-	bcs _0807D5B2
-	ldr r5, _0807D5A4 @ =0x000006f4
-	adds r4, r2, r5
-	adds r2, r0, 0
-_0807D58E:
-	adds r0, r1, r4
-	ldrb r0, [r0]
-	cmp r0, r3
-	bne _0807D5A8
-	movs r0, 0x1
-	b _0807D5B4
-	.align 2, 0
-_0807D59C: .4byte gUnknown_0202F7E8
-_0807D5A0: .4byte 0x000006fa
-_0807D5A4: .4byte 0x000006f4
-_0807D5A8:
-	adds r0, r1, 0x1
-	lsls r0, 16
-	lsrs r1, r0, 16
-	cmp r1, r2
-	bcc _0807D58E
-_0807D5B2:
-	movs r0, 0
-_0807D5B4:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_807D574
-
-	thumb_func_start sub_807D5BC
-sub_807D5BC: @ 807D5BC
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldr r5, _0807D5E8 @ =gUnknown_0202F7E8
-	ldr r1, _0807D5EC @ =0x000006c6
-	adds r0, r5, r1
-	ldrb r0, [r0]
-	cmp r0, 0x3
-	bne _0807D5E2
-	lsls r2, r4, 24
-	asrs r2, 24
-	movs r0, 0
-	movs r1, 0x20
-	bl sub_807CEBC
-	movs r1, 0xD8
-	lsls r1, 3
-	adds r0, r5, r1
-	strb r4, [r0]
-_0807D5E2:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D5E8: .4byte gUnknown_0202F7E8
-_0807D5EC: .4byte 0x000006c6
-	thumb_func_end sub_807D5BC
-
-	thumb_func_start sub_807D5F0
-sub_807D5F0: @ 807D5F0
-	push {r4-r6,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	lsls r1, 24
-	lsrs r5, r1, 24
-	lsls r2, 24
-	lsrs r6, r2, 24
-	ldr r3, _0807D638 @ =gUnknown_0202F7E8
-	ldr r0, _0807D63C @ =0x000006c6
-	adds r2, r3, r0
-	ldrb r0, [r2]
-	cmp r0, 0x3
-	bne _0807D630
-	movs r1, 0
-	strb r1, [r2]
-	movs r2, 0xD8
-	lsls r2, 3
-	adds r0, r3, r2
-	strb r4, [r0]
-	adds r2, 0x1
-	adds r0, r3, r2
-	strb r5, [r0]
-	adds r2, 0x2
-	adds r0, r3, r2
-	strb r1, [r0]
-	ldr r1, _0807D640 @ =0x000006c2
-	adds r0, r3, r1
-	strb r6, [r0]
-	lsls r0, r4, 24
-	asrs r0, 24
-	bl sub_807D5BC
-_0807D630:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D638: .4byte gUnknown_0202F7E8
-_0807D63C: .4byte 0x000006c6
-_0807D640: .4byte 0x000006c2
-	thumb_func_end sub_807D5F0
-
-	thumb_func_start fade_screen
-fade_screen: @ 807D644
-	push {r4,r5,lr}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r0, 24
-	adds r2, r0, 0
-	lsls r1, 24
-	lsrs r5, r1, 24
-	cmp r0, 0x1
-	beq _0807D67C
-	cmp r0, 0x1
-	bgt _0807D660
-	cmp r0, 0
-	beq _0807D66A
-	b _0807D758
-_0807D660:
-	cmp r2, 0x2
-	beq _0807D670
-	cmp r2, 0x3
-	beq _0807D680
-	b _0807D758
-_0807D66A:
-	movs r4, 0
-	movs r1, 0
-	b _0807D684
-_0807D670:
-	ldr r4, _0807D678 @ =0x0000ffff
-	movs r1, 0
-	b _0807D684
-	.align 2, 0
-_0807D678: .4byte 0x0000ffff
-_0807D67C:
-	movs r4, 0
-	b _0807D682
-_0807D680:
-	ldr r4, _0807D6A4 @ =0x0000ffff
-_0807D682:
-	movs r1, 0x1
-_0807D684:
-	ldr r0, _0807D6A8 @ =gUnknown_0202F7E8
-	movs r2, 0xDA
-	lsls r2, 3
-	adds r0, r2
-	ldrb r0, [r0]
-	cmp r0, 0x3
-	blt _0807D6AC
-	cmp r0, 0x6
-	ble _0807D69E
-	cmp r0, 0xD
-	bgt _0807D6AC
-	cmp r0, 0xB
-	blt _0807D6AC
-_0807D69E:
-	movs r2, 0x1
-	b _0807D6AE
-	.align 2, 0
-_0807D6A4: .4byte 0x0000ffff
-_0807D6A8: .4byte gUnknown_0202F7E8
-_0807D6AC:
-	movs r2, 0
-_0807D6AE:
-	cmp r1, 0
-	beq _0807D6F0
-	cmp r2, 0
-	beq _0807D6C2
-	ldr r0, _0807D6E0 @ =gPlttBufferFaded
-	ldr r1, _0807D6E4 @ =gPlttBufferUnfaded
-	movs r2, 0x80
-	lsls r2, 1
-	bl CpuFastSet
-_0807D6C2:
-	movs r0, 0x1
-	negs r0, r0
-	lsls r1, r5, 24
-	asrs r1, 24
-	str r4, [sp]
-	movs r2, 0
-	movs r3, 0x10
-	bl BeginNormalPaletteFade
-	ldr r0, _0807D6E8 @ =gUnknown_0202F7E8
-	ldr r3, _0807D6EC @ =0x000006c6
-	adds r0, r3
-	movs r1, 0x2
-	strb r1, [r0]
-	b _0807D758
-	.align 2, 0
-_0807D6E0: .4byte gPlttBufferFaded
-_0807D6E4: .4byte gPlttBufferUnfaded
-_0807D6E8: .4byte gUnknown_0202F7E8
-_0807D6EC: .4byte 0x000006c6
-_0807D6F0:
-	ldr r1, _0807D708 @ =gUnknown_0202F7E8
-	ldr r3, _0807D70C @ =0x000006c4
-	adds r0, r1, r3
-	strh r4, [r0]
-	cmp r2, 0
-	beq _0807D714
-	ldr r0, _0807D710 @ =0x000006c7
-	adds r1, r0
-	movs r0, 0
-	strb r0, [r1]
-	b _0807D726
-	.align 2, 0
-_0807D708: .4byte gUnknown_0202F7E8
-_0807D70C: .4byte 0x000006c4
-_0807D710: .4byte 0x000006c7
-_0807D714:
-	movs r0, 0x1
-	negs r0, r0
-	lsls r1, r5, 24
-	asrs r1, 24
-	str r4, [sp]
-	movs r2, 0x10
-	movs r3, 0
-	bl BeginNormalPaletteFade
-_0807D726:
-	ldr r4, _0807D760 @ =gUnknown_0202F7E8
-	ldr r1, _0807D764 @ =0x000006c6
-	adds r0, r4, r1
-	movs r1, 0
-	movs r5, 0x1
-	strb r5, [r0]
-	ldr r2, _0807D768 @ =0x000006ca
-	adds r0, r4, r2
-	strb r5, [r0]
-	ldr r3, _0807D76C @ =0x000006cb
-	adds r0, r4, r3
-	strb r1, [r0]
-	movs r1, 0xE6
-	lsls r1, 3
-	adds r0, r4, r1
-	ldrb r0, [r0]
-	adds r2, 0x68
-	adds r1, r4, r2
-	ldrb r1, [r1]
-	bl sub_807DB64
-	movs r3, 0xD9
-	lsls r3, 3
-	adds r4, r3
-	strb r5, [r4]
-_0807D758:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D760: .4byte gUnknown_0202F7E8
-_0807D764: .4byte 0x000006c6
-_0807D768: .4byte 0x000006ca
-_0807D76C: .4byte 0x000006cb
-	thumb_func_end fade_screen
-
-	thumb_func_start sub_807D770
-sub_807D770: @ 807D770
-	ldr r0, _0807D784 @ =gUnknown_0202F7E8
-	ldr r1, _0807D788 @ =0x000006c6
-	adds r0, r1
-	ldrb r1, [r0]
-	movs r0, 0x1
-	eors r1, r0
-	negs r0, r1
-	orrs r0, r1
-	lsrs r0, 31
-	bx lr
-	.align 2, 0
-_0807D784: .4byte gUnknown_0202F7E8
-_0807D788: .4byte 0x000006c6
-	thumb_func_end sub_807D770
-
-	thumb_func_start sub_807D78C
-sub_807D78C: @ 807D78C
-	push {r4-r6,lr}
-	lsls r0, 24
-	lsrs r0, 8
-	movs r1, 0x80
-	lsls r1, 13
-	adds r0, r1
-	lsrs r4, r0, 16
-	ldr r5, _0807D7CC @ =gUnknown_0202F7E8
-	ldr r2, _0807D7D0 @ =0x000006c6
-	adds r0, r5, r2
-	ldrb r0, [r0]
-	adds r1, r5, 0
-	cmp r0, 0x1
-	beq _0807D7D4
-	cmp r0, 0x2
-	beq _0807D820
-	adds r2, 0xA
-	adds r0, r1, r2
-	ldrb r0, [r0]
-	cmp r0, 0x6
-	beq _0807D858
-	lsls r0, r4, 24
-	lsrs r0, 24
-	subs r2, 0x10
-	adds r1, r2
-	movs r2, 0
-	ldrsb r2, [r1, r2]
-	movs r1, 0x1
-	bl sub_807CEBC
-	b _0807D868
-	.align 2, 0
-_0807D7CC: .4byte gUnknown_0202F7E8
-_0807D7D0: .4byte 0x000006c6
-_0807D7D4:
-	ldr r2, _0807D814 @ =0x000006ca
-	adds r0, r1, r2
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _0807D868
-	adds r2, 0x6
-	adds r0, r1, r2
-	ldrb r0, [r0]
-	cmp r0, 0x6
-	bne _0807D7F0
-	lsls r0, r4, 24
-	lsrs r0, 24
-	bl sub_807D540
-_0807D7F0:
-	lsls r0, r4, 20
-	lsrs r4, r0, 16
-	movs r2, 0
-	ldr r6, _0807D818 @ =gPlttBufferFaded
-	ldr r0, _0807D81C @ =0x000006c4
-	adds r3, r5, r0
-_0807D7FC:
-	adds r0, r4, r2
-	lsls r0, 1
-	adds r0, r6
-	ldrh r1, [r3]
-	strh r1, [r0]
-	adds r0, r2, 0x1
-	lsls r0, 16
-	lsrs r2, r0, 16
-	cmp r2, 0xF
-	bls _0807D7FC
-	b _0807D868
-	.align 2, 0
-_0807D814: .4byte 0x000006ca
-_0807D818: .4byte gPlttBufferFaded
-_0807D81C: .4byte 0x000006c4
-_0807D820:
-	lsls r0, r4, 20
-	lsrs r4, r0, 16
-	lsls r1, r4, 1
-	ldr r0, _0807D84C @ =gPlttBufferFaded
-	adds r0, r1, r0
-	ldr r2, _0807D850 @ =gPlttBufferUnfaded
-	adds r1, r2
-	movs r2, 0x8
-	bl CpuFastSet
-	ldr r0, _0807D854 @ =gPaletteFade
-	ldrh r2, [r0, 0x4]
-	lsls r2, 21
-	lsrs r2, 27
-	ldrh r3, [r0, 0x6]
-	lsls r3, 17
-	lsrs r3, 17
-	adds r0, r4, 0
-	movs r1, 0x10
-	bl BlendPalette
-	b _0807D868
-	.align 2, 0
-_0807D84C: .4byte gPlttBufferFaded
-_0807D850: .4byte gPlttBufferUnfaded
-_0807D854: .4byte gPaletteFade
-_0807D858:
-	lsls r0, r4, 20
-	lsrs r4, r0, 16
-	ldr r3, _0807D870 @ =0x000073fc
-	adds r0, r4, 0
-	movs r1, 0x10
-	movs r2, 0xC
-	bl BlendPalette
-_0807D868:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D870: .4byte 0x000073fc
-	thumb_func_end sub_807D78C
-
-	thumb_func_start sub_807D874
-sub_807D874: @ 807D874
-	push {lr}
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, _0807D890 @ =gUnknown_0202F7E8
-	movs r2, 0xD8
-	lsls r2, 3
-	adds r1, r2
-	movs r2, 0
-	ldrsb r2, [r1, r2]
-	movs r1, 0x1
-	bl sub_807CEBC
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D890: .4byte gUnknown_0202F7E8
-	thumb_func_end sub_807D874
-
-	thumb_func_start unref_sub_807D894
-unref_sub_807D894: @ 807D894
-	push {lr}
-	ldr r1, _0807D8A8 @ =gUnknown_0202F7E8
-	ldr r2, _0807D8AC @ =0x000006c6
-	adds r0, r1, r2
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	beq _0807D8B0
-	movs r0, 0
-	b _0807D8B6
-	.align 2, 0
-_0807D8A8: .4byte gUnknown_0202F7E8
-_0807D8AC: .4byte 0x000006c6
-_0807D8B0:
-	ldr r2, _0807D8BC @ =0x000006ca
-	adds r0, r1, r2
-	ldrb r0, [r0]
-_0807D8B6:
-	pop {r1}
-	bx r1
-	.align 2, 0
-_0807D8BC: .4byte 0x000006ca
-	thumb_func_end unref_sub_807D894
-
-	thumb_func_start sub_807D8C0
-sub_807D8C0: @ 807D8C0
-	push {r4,lr}
-	ldr r4, _0807D8E8 @ =gUnknown_0202F7E8
-	ldr r1, _0807D8EC @ =0x000006d4
-	adds r4, r1
-	ldrb r1, [r4]
-	lsls r1, 20
-	movs r2, 0x80
-	lsls r2, 17
-	adds r1, r2
-	lsrs r1, 16
-	movs r2, 0x20
-	bl LoadPalette
-	ldrb r0, [r4]
-	bl sub_807D78C
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D8E8: .4byte gUnknown_0202F7E8
-_0807D8EC: .4byte 0x000006d4
-	thumb_func_end sub_807D8C0
-
-	thumb_func_start sub_807D8F0
-sub_807D8F0: @ 807D8F0
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	adds r7, r0, 0
-	mov r8, r1
-	ldrb r4, [r7]
-	cmp r4, 0x6
-	bhi _0807D99A
-	subs r0, r4, 0x1
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldr r1, _0807D94C @ =gUnknown_08396FA8
-	lsls r0, r4, 2
-	adds r0, r1
-	ldr r0, [r0]
-	lsls r6, r4, 13
-	ldr r5, _0807D950 @ =0x02000000
-	adds r1, r6, r5
-	bl LZ77UnCompWram
-	subs r0, r4, 0x1
-	cmp r4, 0
-	bne _0807D95C
-	ldr r0, _0807D954 @ =0x00000421
-	strh r0, [r5]
-	movs r2, 0x1
-	adds r4, r5, 0
-	movs r3, 0
-	ldr r5, _0807D958 @ =0x00000fff
-_0807D92A:
-	lsls r1, r2, 1
-	adds r1, r3
-	adds r1, r4
-	subs r0, r2, 0x1
-	lsls r0, 1
-	adds r0, r3
-	adds r0, r4
-	ldrh r0, [r0]
-	ldrh r6, [r1]
-	adds r0, r6
-	strh r0, [r1]
-	adds r0, r2, 0x1
-	lsls r0, 16
-	lsrs r2, r0, 16
-	cmp r2, r5
-	bls _0807D92A
-	b _0807D984
-	.align 2, 0
-_0807D94C: .4byte gUnknown_08396FA8
-_0807D950: .4byte 0x02000000
-_0807D954: .4byte 0x00000421
-_0807D958: .4byte 0x00000fff
-_0807D95C:
-	movs r2, 0
-	adds r3, r5, 0
-	adds r5, r6, 0
-	lsls r4, r0, 13
-	ldr r0, _0807D9A4 @ =0x00000fff
-	mov r12, r0
-_0807D968:
-	lsls r0, r2, 1
-	adds r1, r0, r5
-	adds r1, r3
-	adds r0, r4
-	adds r0, r3
-	ldrh r0, [r0]
-	ldrh r6, [r1]
-	adds r0, r6
-	strh r0, [r1]
-	adds r0, r2, 0x1
-	lsls r0, 16
-	lsrs r2, r0, 16
-	cmp r2, r12
-	bls _0807D968
-_0807D984:
-	ldrb r0, [r7]
-	adds r0, 0x1
-	strb r0, [r7]
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x7
-	bne _0807D99A
-	movs r0, 0x20
-	strb r0, [r7]
-	mov r1, r8
-	strb r0, [r1]
-_0807D99A:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807D9A4: .4byte 0x00000fff
-	thumb_func_end sub_807D8F0
-
-	thumb_func_start sub_807D9A8
-sub_807D9A8: @ 807D9A8
-	ldr r0, _0807D9BC @ =gUnknown_0202F7E8
-	ldr r2, _0807D9C0 @ =0x0000074d
-	adds r1, r0, r2
-	movs r2, 0x1
-	strb r2, [r1]
-	ldr r1, _0807D9C4 @ =0x0000074e
-	adds r0, r1
-	strb r2, [r0]
-	bx lr
-	.align 2, 0
-_0807D9BC: .4byte gUnknown_0202F7E8
-_0807D9C0: .4byte 0x0000074d
-_0807D9C4: .4byte 0x0000074e
-	thumb_func_end sub_807D9A8
-
-	thumb_func_start sub_807D9C8
-sub_807D9C8: @ 807D9C8
-	push {r4,lr}
-	ldr r1, _0807D9F0 @ =gUnknown_0202F7E8
-	ldr r0, _0807D9F4 @ =0x0000074d
-	adds r4, r1, r0
-	movs r0, 0
-	ldrsb r0, [r4, r0]
-	cmp r0, 0x1F
-	bgt _0807D9FC
-	ldr r0, _0807D9F8 @ =0x0000074e
-	adds r1, r0
-	adds r0, r4, 0
-	bl sub_807D8F0
-	movs r0, 0
-	ldrsb r0, [r4, r0]
-	cmp r0, 0x1F
-	bgt _0807D9FC
-	movs r0, 0x1
-	b _0807D9FE
-	.align 2, 0
-_0807D9F0: .4byte gUnknown_0202F7E8
-_0807D9F4: .4byte 0x0000074d
-_0807D9F8: .4byte 0x0000074e
-_0807D9FC:
-	movs r0, 0
-_0807D9FE:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_807D9C8
-
-	thumb_func_start sub_807DA04
-sub_807DA04: @ 807DA04
-	push {lr}
-	lsls r0, 24
-	asrs r0, 24
-	mvns r0, r0
-	bl sub_807D5BC
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DA04
-
-	thumb_func_start sub_807DA14
-sub_807DA14: @ 807DA14
-	ldr r1, _0807DA3C @ =gUnknown_0202F7E8
-	ldr r2, _0807DA40 @ =0x0000073c
-	adds r0, r1, r2
-	movs r2, 0
-	strh r2, [r0]
-	movs r3, 0xE8
-	lsls r3, 3
-	adds r0, r1, r3
-	strh r2, [r0]
-	adds r3, 0x2
-	adds r0, r1, r3
-	strh r2, [r0]
-	ldr r0, _0807DA44 @ =0x0000073e
-	adds r1, r0
-	strh r2, [r1]
-	ldr r1, _0807DA48 @ =gUnknown_0202FF58
-	movs r0, 0x5
-	strh r0, [r1]
-	bx lr
-	.align 2, 0
-_0807DA3C: .4byte gUnknown_0202F7E8
-_0807DA40: .4byte 0x0000073c
-_0807DA44: .4byte 0x0000073e
-_0807DA48: .4byte gUnknown_0202FF58
-	thumb_func_end sub_807DA14
-
-	thumb_func_start sub_807DA4C
-sub_807DA4C: @ 807DA4C
-	push {r4-r7,lr}
-	ldr r5, _0807DA68 @ =gUnknown_0202F7E8
-	ldr r0, _0807DA6C @ =0x00000742
-	adds r7, r5, r0
-	movs r1, 0
-	ldrsh r2, [r7, r1]
-	cmp r2, 0x1
-	beq _0807DAC8
-	cmp r2, 0x1
-	bgt _0807DA70
-	cmp r2, 0
-	beq _0807DA76
-	b _0807DB54
-	.align 2, 0
-_0807DA68: .4byte gUnknown_0202F7E8
-_0807DA6C: .4byte 0x00000742
-_0807DA70:
-	cmp r2, 0x2
-	beq _0807DB1C
-	b _0807DB54
-_0807DA76:
-	movs r3, 0xE8
-	lsls r3, 3
-	adds r6, r5, r3
-	ldrh r0, [r6]
-	adds r0, 0x1
-	strh r0, [r6]
-	lsls r0, 16
-	asrs r0, 16
-	ldr r1, _0807DABC @ =gUnknown_0202FF58
-	ldrh r1, [r1]
-	cmp r0, r1
-	ble _0807DB54
-	strh r2, [r6]
-	ldr r0, _0807DAC0 @ =0x0000073c
-	adds r4, r5, r0
-	ldrh r0, [r4]
-	adds r1, r0, 0x1
-	strh r1, [r4]
-	lsls r0, 24
-	asrs r0, 24
-	bl sub_807DA04
-	ldrh r1, [r4]
-	movs r2, 0
-	ldrsh r0, [r4, r2]
-	cmp r0, 0x5
-	ble _0807DB54
-	ldr r3, _0807DAC4 @ =0x0000073e
-	adds r0, r5, r3
-	strh r1, [r0]
-	movs r0, 0x1
-	strh r0, [r7]
-	movs r0, 0x3C
-	strh r0, [r6]
-	b _0807DB54
-	.align 2, 0
-_0807DABC: .4byte gUnknown_0202FF58
-_0807DAC0: .4byte 0x0000073c
-_0807DAC4: .4byte 0x0000073e
-_0807DAC8:
-	movs r0, 0xE8
-	lsls r0, 3
-	adds r2, r5, r0
-	ldrh r0, [r2]
-	adds r0, 0x3
-	movs r1, 0x7F
-	ands r0, r1
-	strh r0, [r2]
-	ldr r1, _0807DB10 @ =gSineTable
-	movs r3, 0
-	ldrsh r0, [r2, r3]
-	lsls r0, 1
-	adds r0, r1
-	movs r1, 0
-	ldrsh r0, [r0, r1]
-	subs r0, 0x1
-	asrs r0, 6
-	adds r0, 0x2
-	ldr r2, _0807DB14 @ =0x0000073c
-	adds r6, r5, r2
-	adds r2, r0, 0
-	strh r0, [r6]
-	ldr r3, _0807DB18 @ =0x0000073e
-	adds r4, r5, r3
-	movs r3, 0
-	ldrsh r1, [r4, r3]
-	cmp r0, r1
-	beq _0807DB08
-	lsls r0, r2, 24
-	asrs r0, 24
-	bl sub_807DA04
-_0807DB08:
-	ldrh r0, [r6]
-	strh r0, [r4]
-	b _0807DB54
-	.align 2, 0
-_0807DB10: .4byte gSineTable
-_0807DB14: .4byte 0x0000073c
-_0807DB18: .4byte 0x0000073e
-_0807DB1C:
-	movs r0, 0xE8
-	lsls r0, 3
-	adds r2, r5, r0
-	ldrh r0, [r2]
-	adds r0, 0x1
-	movs r6, 0
-	strh r0, [r2]
-	lsls r0, 16
-	asrs r0, 16
-	ldr r1, _0807DB5C @ =gUnknown_0202FF58
-	ldrh r1, [r1]
-	cmp r0, r1
-	ble _0807DB54
-	strh r6, [r2]
-	ldr r1, _0807DB60 @ =0x0000073c
-	adds r4, r5, r1
-	ldrh r0, [r4]
-	subs r0, 0x1
-	strh r0, [r4]
-	lsls r0, 24
-	asrs r0, 24
-	bl sub_807DA04
-	movs r2, 0
-	ldrsh r0, [r4, r2]
-	cmp r0, 0x3
-	bne _0807DB54
-	strh r6, [r7]
-_0807DB54:
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DB5C: .4byte gUnknown_0202FF58
-_0807DB60: .4byte 0x0000073c
-	thumb_func_end sub_807DA4C
-
-	thumb_func_start sub_807DB64
-sub_807DB64: @ 807DB64
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, 24
-	lsrs r1, 24
-	ldr r3, _0807DB98 @ =gUnknown_0202F7E8
-	movs r4, 0xE6
-	lsls r4, 3
-	adds r2, r3, r4
-	strh r0, [r2]
-	adds r4, 0x2
-	adds r2, r3, r4
-	strh r1, [r2]
-	adds r4, 0x2
-	adds r2, r3, r4
-	strh r0, [r2]
-	ldr r2, _0807DB9C @ =0x00000736
-	adds r3, r2
-	strh r1, [r3]
-	ldr r2, _0807DBA0 @ =REG_BLDALPHA
-	lsls r1, 8
-	orrs r1, r0
-	strh r1, [r2]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DB98: .4byte gUnknown_0202F7E8
-_0807DB9C: .4byte 0x00000736
-_0807DBA0: .4byte REG_BLDALPHA
-	thumb_func_end sub_807DB64
-
-	thumb_func_start sub_807DBA4
-sub_807DBA4: @ 807DBA4
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, 24
-	lsrs r1, 24
-	ldr r3, _0807DBD8 @ =gUnknown_0202F7E8
-	ldr r5, _0807DBDC @ =0x00000734
-	adds r4, r3, r5
-	movs r5, 0
-	strh r0, [r4]
-	ldr r4, _0807DBE0 @ =0x00000736
-	adds r0, r3, r4
-	strh r1, [r0]
-	ldr r1, _0807DBE4 @ =0x0000073a
-	adds r0, r3, r1
-	strb r2, [r0]
-	adds r4, 0x3
-	adds r0, r3, r4
-	strb r5, [r0]
-	movs r0, 0xE7
-	lsls r0, 3
-	adds r3, r0
-	strb r5, [r3]
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DBD8: .4byte gUnknown_0202F7E8
-_0807DBDC: .4byte 0x00000734
-_0807DBE0: .4byte 0x00000736
-_0807DBE4: .4byte 0x0000073a
-	thumb_func_end sub_807DBA4
-
-	thumb_func_start sub_807DBE8
-sub_807DBE8: @ 807DBE8
-	push {r4-r6,lr}
-	ldr r0, _0807DC40 @ =gUnknown_0202F7E8
-	movs r1, 0xE6
-	lsls r1, 3
-	adds r3, r0, r1
-	ldr r2, [r3]
-	ldr r6, _0807DC44 @ =0x00000734
-	adds r5, r0, r6
-	ldr r1, [r5]
-	adds r4, r0, 0
-	cmp r2, r1
-	beq _0807DCAC
-	ldr r0, _0807DC48 @ =0x00000739
-	adds r2, r4, r0
-	ldrb r0, [r2]
-	adds r0, 0x1
-	strb r0, [r2]
-	ldr r6, _0807DC4C @ =0x0000073a
-	adds r1, r4, r6
-	lsls r0, 24
-	lsrs r0, 24
-	ldrb r1, [r1]
-	cmp r0, r1
-	bls _0807DC78
-	movs r0, 0
-	strb r0, [r2]
-	movs r0, 0xE7
-	lsls r0, 3
-	adds r1, r4, r0
-	ldrb r0, [r1]
-	adds r0, 0x1
-	strb r0, [r1]
-	movs r1, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _0807DC50
-	ldrh r1, [r3]
-	adds r2, r1, 0
-	ldrh r0, [r5]
-	cmp r2, r0
-	bcs _0807DC70
-	adds r0, r1, 0x1
-	b _0807DC76
-	.align 2, 0
-_0807DC40: .4byte gUnknown_0202F7E8
-_0807DC44: .4byte 0x00000734
-_0807DC48: .4byte 0x00000739
-_0807DC4C: .4byte 0x0000073a
-_0807DC50:
-	ldr r1, _0807DC68 @ =0x00000732
-	adds r3, r4, r1
-	ldr r2, _0807DC6C @ =0x00000736
-	adds r0, r4, r2
-	ldrh r1, [r3]
-	adds r2, r1, 0
-	ldrh r0, [r0]
-	cmp r2, r0
-	bcs _0807DC70
-	adds r0, r1, 0x1
-	b _0807DC76
-	.align 2, 0
-_0807DC68: .4byte 0x00000732
-_0807DC6C: .4byte 0x00000736
-_0807DC70:
-	cmp r2, r0
-	bls _0807DC78
-	subs r0, r1, 0x1
-_0807DC76:
-	strh r0, [r3]
-_0807DC78:
-	ldr r3, _0807DCA0 @ =REG_BLDALPHA
-	ldr r6, _0807DCA4 @ =0x00000732
-	adds r0, r4, r6
-	ldrh r0, [r0]
-	lsls r0, 8
-	movs r1, 0xE6
-	lsls r1, 3
-	adds r2, r4, r1
-	ldrh r1, [r2]
-	orrs r0, r1
-	strh r0, [r3]
-	ldr r1, [r2]
-	ldr r2, _0807DCA8 @ =0x00000734
-	adds r0, r4, r2
-	ldr r0, [r0]
-	cmp r1, r0
-	beq _0807DCAC
-	movs r0, 0
-	b _0807DCAE
-	.align 2, 0
-_0807DCA0: .4byte REG_BLDALPHA
-_0807DCA4: .4byte 0x00000732
-_0807DCA8: .4byte 0x00000734
-_0807DCAC:
-	movs r0, 0x1
-_0807DCAE:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_807DBE8
-
 	thumb_func_start unref_sub_807DCB4
 unref_sub_807DCB4: @ 807DCB4
 	push {lr}
diff --git a/include/field_weather.h b/include/field_weather.h
index 128f6c661..b711f91d6 100644
--- a/include/field_weather.h
+++ b/include/field_weather.h
@@ -43,7 +43,7 @@ void sub_80806E4(void);
 void DoCurrentWeather(void);
 void sub_8080750();
 
-u8 sub_807D770(void);
+bool8 sub_807D770(void);
 bool8 sub_807DDFC(void);
 void SetWeather(u32);
 void UpdateWeatherPerDay(u16);
diff --git a/src/field_weather.c b/src/field_weather.c
index 9460110be..9dc2560cc 100644
--- a/src/field_weather.c
+++ b/src/field_weather.c
@@ -4,6 +4,7 @@
 #include "palette.h"
 #include "sprite.h"
 #include "task.h"
+#include "trig.h"
 
 #define MACRO1(a) ((((a) >> 1) & 0xF) | (((a) >> 2) & 0xF0) | (((a) >> 3) & 0xF00))
 
@@ -13,7 +14,9 @@ struct Weather
     u8 unknown_200[2][32];
     u8 filler_240[0x460-0x240];
     u8 unk460[2][32];
-    u8 filler4A0[0x6C0-0x4A0];
+    u8 filler4A0[0x6B6-0x4A0];
+    s8 unknown_6B6;
+    u8 filler_6B7[0xC0-0xB7];
     s8 unknown_6C0;
     s8 unknown_6C1;
     u8 unknown_6C2;
@@ -41,7 +44,8 @@ struct Weather
     u8 unknown_6DE;
     u8 filler_6DF[5];
     u8 unknown_6E4;
-    u8 filler_6E5[0x15];
+    u8 filler_6E5[0xF];
+    u8 unknown_6F4[6];
     u8 unknown_6FA;
     u8 unknown_6FB;
     u8 filler_6FC[4];
@@ -53,18 +57,34 @@ struct Weather
     u8 unknown_724;
     u8 filler_725[9];
     u8 unknown_72E;
+    u8 filler_72F;
+    u16 unknown_730;
+    u16 unknown_732;
+    u16 unknown_734;
+    u16 unknown_736;
+    u8 unknown_738;
+    u8 unknown_739;
+    u8 unknown_73A;
+    u8 filler_73B[0x3C-0x3B];
+    s16 unknown_73C;
+    s16 unknown_73E;
+    s16 unknown_740;
+    s16 unknown_742;
+    u8 filler_744[0xD-4];
+    s8 unknown_74D;
+    u8 unknown_74E;
 };
 
 #define gWeather gUnknown_0202F7E8
-extern struct Weather gWeather;
+extern struct Weather gUnknown_0202F7E8;
+extern u16 gUnknown_0202FF58;
 extern u8 *gUnknown_083970E8;
 extern u8 (*gUnknown_08396FC8[][4])(void);
 extern u8 (*gUnknown_083970B8[])(void);
 extern u8 *gUnknown_030006DC;
 extern u8 gUnknown_083970C8;
-//extern u8 (*gUnknown_0202FC48)[32];
-extern u8 gUnknown_0202FC48[][32];
-extern u8 gUnknown_0202F9E8[][32];
+
+extern const u8 *const gUnknown_08396FA8[];
 
 
 void sub_807C828(void)
@@ -176,7 +196,7 @@ u32 sub_807CB0C(void)
 void sub_807CB10(void)
 {
     u16 v0;
-    u8(*v1)[32];
+    u8 (*v1)[32];
     u16 v2;
     u16 v4;
     u16 v5;
@@ -190,9 +210,9 @@ void sub_807CB10(void)
     for (v0 = 0; v0 <= 1; v0++)
     {
         if (v0 == 0)
-            v1 = (void *)&gUnknown_0202F9E8;
+            v1 = gWeather.unknown_200;
         else
-            v1 = &gUnknown_0202F9E8[19];
+            v1 = gWeather.unk460;
 
         for (v2 = 0; (u16)v2 <= 0x1f; v2++)
         {
@@ -392,10 +412,10 @@ void sub_807CEBC(u8 a, u8 b, s8 c)
             {
                 u8 r, g, b;
 
-                if (gUnknown_030006DC[r4] == 2 || r4 - 16 == gUnknown_0202F7E8.unknown_6D5)
-                    r6 = gUnknown_0202F7E8.unk460[c];
+                if (gUnknown_030006DC[r4] == 2 || r4 - 16 == gWeather.unknown_6D5)
+                    r6 = gWeather.unk460[c];
                 else
-                    r6 = gUnknown_0202F7E8.unknown_200[c];
+                    r6 = gWeather.unknown_200[c];
                 if (r4 == 16 || r4 > 0x1B)
                 {
                     for (i = 0; i < 16; i++)
@@ -499,9 +519,9 @@ void sub_807D1BC(u8 a1, u8 a2, s8 c, u8 d, u16 e)
             u8 *r5;
 
             if (gUnknown_030006DC[r4] == 1)
-                r5 = gUnknown_0202F9E8[c];
+                r5 = gWeather.unknown_200[c];
             else
-                r5 = gUnknown_0202F9E8[c + 19];
+                r5 = gWeather.unk460[c];
 
             for (i = 0; i < 16; i++)
             {
@@ -573,3 +593,368 @@ void sub_807D304(s8 a, u8 arg2, u16 c)
         }
     }
 }
+
+bool8 sub_807D574(u8);
+
+void sub_807D424(u8 a, u16 b)
+{
+    struct RGBColor color;
+    u8 r_;
+    u8 g_;
+    u8 b_;
+    u16 r4;
+
+    BlendPalette(0, 0x100, a, b);
+    color = *(struct RGBColor *)&b;
+    r_ = color.r;
+    g_ = color.g;
+    b_ = color.b;
+
+    r4 = 16;
+    while (r4 < 32)
+    {
+        if (sub_807D574(r4))
+        {
+            u16 r12 = (r4 + 1) * 16;
+            u16 r6 = r4 * 16;
+
+            while (r6 < r12)
+            {
+                struct RGBColor color = *(struct RGBColor *)&gPlttBufferUnfaded[r6];
+                u8 r = color.r;
+                u8 g = color.g;
+                u8 b = color.b;
+
+                r += ((28 - r) * 3) >> 2;
+                g += ((31 - g) * 3) >> 2;
+                b += ((28 - b) * 3) >> 2;
+
+                r += ((r_ - r) * a) >> 4;
+                g += ((g_ - g) * a) >> 4;
+                b += ((b_ - b) * a) >> 4;
+
+                gPlttBufferFaded[r6] = (b << 10) | (g << 5) | r;
+                r6++;
+            }
+        }
+        else
+        {
+            BlendPalette(r4 * 16, 16, a, b);
+        }
+        r4++;
+    }
+}
+
+void sub_807D540(u8 a)
+{
+    if (gWeather.unknown_6FA < 6)
+    {
+        gWeather.unknown_6F4[gWeather.unknown_6FA] = a;
+        gWeather.unknown_6FA++;
+    }
+}
+
+bool8 sub_807D574(u8 a)
+{
+    u16 i;
+
+    for (i = 0; i < gWeather.unknown_6FA; i++)
+    {
+        if (gWeather.unknown_6F4[i] == a)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+void sub_807D5BC(s8 a)
+{
+    if (gWeather.unknown_6C6 == 3)
+    {
+        sub_807CEBC(0, 32, a);
+        gWeather.unknown_6C0 = a;
+    }
+}
+
+void sub_807D5F0(u8 a, u8 b, u8 c)
+{
+    if (gWeather.unknown_6C6 == 3)
+    {
+        gWeather.unknown_6C6 = 0;
+        gWeather.unknown_6C0 = a;
+        gWeather.unknown_6C1 = b;
+        gWeather.unknown_6C3 = 0;
+        gWeather.unknown_6C2 = c;
+        sub_807D5BC(a);
+    }
+}
+
+void fade_screen(u8 a, u8 b)
+{
+    u32 r4;
+    u32 r1;
+    u32 r2;
+
+    switch (a)
+    {
+    case 0:
+        r4 = 0;
+        r1 = 0;
+        break;
+    case 2:
+        r4 = 0xFFFF;
+        r1 = 0;
+        break;
+    case 1:
+        r4 = 0;
+        r1 = 1;
+        break;
+    case 3:
+        r4 = 0xFFFF;
+        r1 = 1;
+        break;
+    default:
+        return;
+    }
+
+    switch (gWeather.unknown_6D0)
+    {
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+    case 11:
+    case 12:
+    case 13:
+        r2 = 1;
+        break;
+    default:
+        r2 = 0;
+        break;
+    }
+
+    if (r1 != 0)
+    {
+        if (r2 != 0)
+            CpuFastCopy(gPlttBufferFaded, gPlttBufferUnfaded, 0x400);
+        BeginNormalPaletteFade(0xFFFFFFFF, b, 0, 16, r4);
+        gWeather.unknown_6C6 = 2;
+    }
+    else
+    {
+        gWeather.unknown_6C4 = r4;
+        if (r2 != 0)
+            gWeather.unknown_6C7 = 0;
+        else
+            BeginNormalPaletteFade(0xFFFFFFFF, b, 16, 0, r4);
+        gWeather.unknown_6C6 = 1;
+        gWeather.unknown_6CA = 1;
+        gWeather.unknown_6CB = 0;
+        sub_807DB64(gWeather.unknown_730, gWeather.unknown_732);
+        gWeather.unknown_6C8 = 1;
+    }
+}
+
+bool8 sub_807D770(void)
+{
+    return gWeather.unknown_6C6 ^ 1 ? TRUE : FALSE;
+}
+
+void sub_807D78C(u8 a)
+{
+    u16 r4 = 16 + a;
+    u16 i;
+
+    switch (gWeather.unknown_6C6)
+    {
+    case 1:
+        if (gWeather.unknown_6CA != 0)
+        {
+            if (gWeather.unknown_6D0 == 6)
+                sub_807D540(r4);
+            r4 *= 16;
+            for (i = 0; i < 16; i++)
+                gPlttBufferFaded[r4 + i] = gWeather.unknown_6C4;
+        }
+        break;
+    case 2:
+        r4 *= 16;
+        CpuFastCopy(gPlttBufferFaded + r4, gPlttBufferUnfaded + r4, 32);
+        BlendPalette(r4, 16, gPaletteFade.y, gPaletteFade.blendColor);
+        break;
+    default:
+        if (gWeather.unknown_6D0 != 6)
+        {
+            sub_807CEBC(r4, 1, gWeather.unknown_6C0);
+        }
+        else
+        {
+            r4 *= 16;
+            BlendPalette(r4, 16, 12, 0x73FC);
+        }
+        break;
+    }
+}
+
+void sub_807D874(u8 a)
+{
+    sub_807CEBC(a, 1, gWeather.unknown_6C0);
+}
+
+u8 unref_sub_807D894(void)
+{
+    if (gWeather.unknown_6C6 == 1)
+        return gWeather.unknown_6CA;
+    else
+        return 0;
+}
+
+void sub_807D8C0(const u16 *palette)
+{
+    LoadPalette(palette, 0x100 + gWeather.unknown_6D4 * 16, 32);
+    sub_807D78C(gWeather.unknown_6D4);
+}
+
+void sub_807D8F0(u8 *a, u8 *b)
+{
+    u8 r4 = *a;
+    u16 i;
+
+    if (r4 < 7)
+    {
+        r4--;
+        LZ77UnCompWram(gUnknown_08396FA8[r4], ewram0.data[r4]);
+        if (r4 == 0)
+        {
+            ewram0.data[r4][0] = 0x421;
+            for (i = 1; i < 0x1000; i++)
+                ewram0.data[r4][i] += ewram0.data[r4][i - 1];
+        }
+        else
+        {
+            for (i = 0; i < 0x1000; i++)
+                ewram0.data[r4][i] += ewram0.data[r4 - 1][i];
+        }
+        (*a)++;
+        if (*a == 7)
+        {
+            *a = 32;
+            *b = 32;
+        }
+    }
+}
+
+void sub_807D9A8(void)
+{
+    gWeather.unknown_74D = 1;
+    gWeather.unknown_74E = 1;
+}
+
+bool8 sub_807D9C8(void)
+{
+    if (gWeather.unknown_74D < 32)
+    {
+        sub_807D8F0(&gWeather.unknown_74D, &gWeather.unknown_74E);
+        if (gWeather.unknown_74D < 32)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+void sub_807DA04(s8 a)
+{
+    sub_807D5BC(-a - 1);
+}
+
+void sub_807DA14(void)
+{
+    gWeather.unknown_73C = 0;
+    gWeather.unknown_740 = 0;
+    gWeather.unknown_742 = 0;
+    gWeather.unknown_73E = 0;
+    gUnknown_0202FF58 = 5;
+}
+
+void sub_807DA4C(void)
+{
+    switch (gWeather.unknown_742)
+    {
+    case 0:
+        if (++gWeather.unknown_740 > gUnknown_0202FF58)
+        {
+            gWeather.unknown_740 = 0;
+            sub_807DA04(gWeather.unknown_73C++);
+            if (gWeather.unknown_73C > 5)
+            {
+                gWeather.unknown_73E = gWeather.unknown_73C;
+                gWeather.unknown_742 = 1;
+                gWeather.unknown_740 = 0x3C;
+            }
+        }
+        break;
+    case 1:
+        gWeather.unknown_740 = (gWeather.unknown_740 + 3) & 0x7F;
+        gWeather.unknown_73C = ((gSineTable[gWeather.unknown_740] - 1) >> 6) + 2;
+        if (gWeather.unknown_73C != gWeather.unknown_73E)
+            sub_807DA04(gWeather.unknown_73C);
+        gWeather.unknown_73E = gWeather.unknown_73C;
+        break;
+    case 2:
+        if (++gWeather.unknown_740 > gUnknown_0202FF58)
+        {
+            gWeather.unknown_740 = 0;
+            sub_807DA04(--gWeather.unknown_73C);
+            if (gWeather.unknown_73C == 3)
+                gWeather.unknown_742 = 0;
+        }
+        break;
+    }
+}
+
+void sub_807DB64(u8 a, u8 b)
+{
+    gWeather.unknown_730 = a;
+    gWeather.unknown_732 = b;
+    gWeather.unknown_734 = a;
+    gWeather.unknown_736 = b;
+    REG_BLDALPHA = (b << 8) | a;
+}
+
+void sub_807DBA4(u8 a, u8 b, int c)
+{
+    gWeather.unknown_734 = a;
+    gWeather.unknown_736 = b;
+    gWeather.unknown_73A = c;
+    gWeather.unknown_739 = 0;
+    gWeather.unknown_738 = 0;
+}
+
+bool8 sub_807DBE8(void)
+{
+    if (gWeather.unknown_730 == gWeather.unknown_734
+     && gWeather.unknown_732 == gWeather.unknown_736)
+        return TRUE;
+    if (++gWeather.unknown_739 > gWeather.unknown_73A)
+    {
+        gWeather.unknown_739 = 0;
+        gWeather.unknown_738++;
+        if (gWeather.unknown_738 & 1)
+        {
+            if (gWeather.unknown_730 < gWeather.unknown_734)
+                gWeather.unknown_730++;
+            else if (gWeather.unknown_730 > gWeather.unknown_734)
+                gWeather.unknown_730--;
+        }
+        else
+        {
+            if (gWeather.unknown_732 < gWeather.unknown_736)
+                gWeather.unknown_732++;
+            else if (gWeather.unknown_732 > gWeather.unknown_736)
+                gWeather.unknown_732--;
+        }
+    }
+    REG_BLDALPHA = (gWeather.unknown_732 << 8) | gWeather.unknown_730;
+    if (gWeather.unknown_730 == gWeather.unknown_734
+     && gWeather.unknown_732 == gWeather.unknown_736)
+        return TRUE;
+    return FALSE;
+}