1 files changed, 603 insertions, 0 deletions
diff --git a/home/menu.asm b/home/menu.asm
new file mode 100644
index 000000000..c761a927c
--- /dev/null
+++ b/home/menu.asm
@@ -0,0 +1,603 @@
+; Functions used in displaying and handling menus.
+
+
+LoadMenuDataHeader: ; 0x1d35
+	call Function1d3c
+	call Function1c00
+	ret
+
+Function1d3c: ; 0x1d3c
+	ld de, $cf81
+	ld bc, $0010
+	call CopyBytes
+	ld a, [hROMBank]
+	ld [$cf8a], a
+	ret
+; 0x1d4b
+
+Function1d4b: ; 1d4b
+	ld [$cf88], a
+	ret
+; 1d4f
+
+
+Function1d4f: ; 1d4f
+	push hl
+	call Function1d58
+	pop hl
+	jp PrintText
+; 1d57
+
+Function1d57: ; 1d57
+	ret
+; 1d58
+
+Function1d58: ; 1d58
+	ld hl, MenuDataHeader_0x1d5f
+	call LoadMenuDataHeader
+	ret
+; 1d5f
+
+MenuDataHeader_0x1d5f: ; 1d5f
+	db $40 ; tile backup
+	db 12, 0 ; start coords
+	db 17, 19 ; end coords
+	dw VTiles0
+	db 0 ; default option
+; 1d67
+
+Function1d67: ; 1d67
+	call Function1d4f
+	call Function1c17
+	ret
+; 1d6e
+
+Function1d6e: ; 1d6e
+	ld hl, MenuDataHeader_0x1d75
+	call LoadMenuDataHeader
+	ret
+; 1d75
+
+MenuDataHeader_0x1d75: ; 1d75
+	db $40 ; tile backup
+	db 0, 0 ; start coords
+	db 17, 19 ; end coords
+	dw $0000
+	db 1 ; default option
+; 1d7d
+
+Function1d7d: ; 1d7d
+	call Function1c07
+	ret
+; 1d81
+
+Function1d81: ; 0x1d81
+	xor a
+	ld [hBGMapMode], a
+	call Function1cbb
+	call Function1ad2
+	call Function1c89
+	call Function321c
+	call Function1c66
+	ld a, [$cf91]
+	bit 7, a
+	jr z, .asm_1da7 ; 0x1d98 $d
+	call Function1c10
+	call Function1bc9
+	call Function1ff8
+	bit 1, a
+	jr z, .asm_1da9 ; 0x1da5 $2
+.asm_1da7
+	scf
+	ret
+.asm_1da9
+	and a
+	ret
+; 0x1dab
+
+Function1dab: ; 1dab
+	call LoadMenuDataHeader
+	call Function1d81
+	call Function1c17
+	ld a, [$cfa9]
+	ret
+; 1db8
+
+Function1db8: ; 0x1db8
+	push hl
+	push bc
+	push af
+	ld hl, $cf86
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	inc hl
+	inc hl
+	pop af
+	call GetNthString
+	ld d, h
+	ld e, l
+	call CopyName1
+	pop bc
+	pop hl
+	ret
+; 0x1dcf
+
+
+Function1dcf: ; 1dcf
+	ld bc, $0e07
+
+Function1dd2: ; 1dd2
+	jr Function1dd9
+
+Function1dd4: ; 1dd4
+	call LoadMenuDataHeader
+	jr Function1dfe
+
+Function1dd9: ; 1dd9
+	push bc
+	ld hl, MenuDataHeader_0x1e1d
+	call Function1d3c
+	pop bc
+	ld a, b
+	cp $e
+	jr nz, .asm_1de9
+	ld a, $e
+	ld b, a
+
+.asm_1de9
+	ld a, b
+	ld [$cf83], a
+	add $5
+	ld [$cf85], a
+	ld a, c
+	ld [$cf82], a
+	add $4
+	ld [$cf84], a
+	call Function1c00
+
+Function1dfe: ; 1dfe
+	call Function1d81
+	push af
+	ld c, $f
+	call DelayFrames
+	call Function1c17
+	pop af
+	jr c, .asm_1e16
+	ld a, [$cfa9]
+	cp $2
+	jr z, .asm_1e16
+	and a
+	ret
+
+.asm_1e16
+	ld a, $2
+	ld [$cfa9], a
+	scf
+	ret
+; 1e1d
+
+MenuDataHeader_0x1e1d: ; 1e1d
+	db $40 ; tile backup
+	db 5, 10 ; start coords
+	db 9, 15 ; end coords
+	dw MenuData2_0x1e25
+	db 1 ; default option
+; 1e25
+
+MenuData2_0x1e25: ; 1e25
+	db $c0 ; flags
+	db 2
+	db "YES@"
+	db "NO@"
+; 1e2e
+
+Function1e2e: ; 1e2e
+	call Function1e35
+	call Function1c00
+	ret
+; 1e35
+
+Function1e35: ; 1e35
+	push de
+	call Function1d3c
+	pop de
+	ld a, [$cf83]
+	ld h, a
+	ld a, [$cf85]
+	sub h
+	ld h, a
+	ld a, d
+	ld [$cf83], a
+	add h
+	ld [$cf85], a
+	ld a, [$cf82]
+	ld l, a
+	ld a, [$cf84]
+	sub l
+	ld l, a
+	ld a, e
+	ld [$cf82], a
+	add l
+	ld [$cf84], a
+	ret
+; 1e5d
+
+Function1e5d: ; 1e5d
+	call MenuFunc_1e7f
+	call MenuWriteText
+	call Function1eff
+	call Function1f23
+	call Function1bdd
+	call Function1ff8
+	ret
+; 1e70
+
+SetUpMenu: ; 1e70
+	call MenuFunc_1e7f ; ???
+	call MenuWriteText
+	call Function1eff ; set up selection pointer
+	ld hl, $cfa5
+	set 7, [hl]
+	ret
+
+MenuFunc_1e7f: ; 0x1e7f
+	call Function1c66
+	call Function1ebd
+	call Function1ea6
+	call Function1cbb
+	ret
+
+MenuWriteText: ; 0x1e8c
+	xor a
+	ld [hBGMapMode], a
+	call Function1ebd ; sort out the text 
+	call Function1eda ; actually write it
+	call Function2e31
+	ld a, [hOAMUpdate]
+	push af
+	ld a, $1
+	ld [hOAMUpdate], a
+	call Function321c
+	pop af
+	ld [hOAMUpdate], a
+	ret
+; 0x1ea6
+
+Function1ea6: ; 1ea6
+	ld a, [$cf83]
+	ld c, a
+	ld a, [$cf85]
+	sub c
+	ld c, a
+	ld a, [$cf92]
+	add a
+	inc a
+	ld b, a
+	ld a, [$cf82]
+	add b
+	ld [$cf84], a
+	ret
+; 1ebd
+
+Function1ebd: ; 1ebd
+	ld hl, $cf93
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	ld a, [$cf76]
+	and a
+	jr z, .asm_1ed3
+	ld b, a
+	ld c, $ff
+.asm_1ecc
+	ld a, [hli]
+	cp c
+	jr nz, .asm_1ecc
+	dec b
+	jr nz, .asm_1ecc
+
+.asm_1ed3
+	ld d, h
+	ld e, l
+	ld a, [hl]
+	ld [$cf92], a
+	ret
+; 1eda
+
+Function1eda: ; 1eda
+	call Function1cfd
+	ld bc, $002a
+	add hl, bc
+.asm_1ee1
+	inc de
+	ld a, [de]
+	cp $ff
+	ret z
+	ld [MenuSelection], a
+	push de
+	push hl
+	ld d, h
+	ld e, l
+	ld hl, $cf95
+	call Function1efb
+	pop hl
+	ld de, $0028
+	add hl, de
+	pop de
+	jr .asm_1ee1
+; 1efb
+
+Function1efb: ; 1efb
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	jp [hl]
+; 1eff
+
+Function1eff: ; 1eff
+	call Function1c10
+	ld hl, $cfa8
+	ld a, [$cf91]
+	bit 3, a
+	jr z, .asm_1f0e
+	set 3, [hl]
+
+.asm_1f0e
+	ld a, [$cf91]
+	bit 2, a
+	jr z, .asm_1f19
+	set 5, [hl]
+	set 4, [hl]
+
+.asm_1f19
+	ret
+; 1f1a
+
+
+Function1f1a: ; 1f1a
+	call Function1bd3
+	ld hl, $cfa8
+	and [hl]
+	jr Function1f2a
+; 1f23
+
+Function1f23: ; 1f23
+	xor a
+	ld [$cf73], a
+	call Function1bc9
+; 1f2a
+
+Function1f2a: ; 1f2a
+	bit 0, a
+	jr nz, .asm_1f52
+	bit 1, a
+	jr nz, .asm_1f6d
+	bit 3, a
+	jr nz, .asm_1f6d
+	bit 4, a
+	jr nz, .asm_1f44
+	bit 5, a
+	jr nz, .asm_1f4b
+	xor a
+	ld [$cf73], a
+	jr .asm_1f57
+
+.asm_1f44
+	ld a, $10
+	ld [$cf73], a
+	jr .asm_1f57
+
+.asm_1f4b
+	ld a, $20
+	ld [$cf73], a
+	jr .asm_1f57
+
+.asm_1f52
+	ld a, $1
+	ld [$cf73], a
+
+.asm_1f57
+	call Function1ebd
+	ld a, [$cfa9]
+	ld l, a
+	ld h, $0
+	add hl, de
+	ld a, [hl]
+	ld [MenuSelection], a
+	ld a, [$cfa9]
+	ld [$cf88], a
+	and a
+	ret
+
+.asm_1f6d
+	ld a, $2
+	ld [$cf73], a
+	ld a, $ff
+	ld [MenuSelection], a
+	scf
+	ret
+; 1f79
+
+Function1f79: ; 1f79
+	push de
+	ld hl, $cf97
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	ld a, [MenuSelection]
+	call GetNthString
+	ld d, h
+	ld e, l
+	pop hl
+	call PlaceString
+	ret
+; 1f8d
+
+Function1f8d: ; 1f8d
+	push de
+	ld a, [MenuSelection]
+	call Function1fb1
+	inc hl
+	inc hl
+	ld a, [hli]
+	ld d, [hl]
+	ld e, a
+	pop hl
+	call PlaceString
+	ret
+; 1f9e
+
+Function1f9e: ; 1f9e
+	call Function1fb1
+	inc hl
+	inc hl
+	ld a, [hli]
+	ld d, [hl]
+	ld e, a
+	ret
+; 1fa7
+
+Function1fa7: ; 1fa7
+	ld a, [MenuSelection]
+	call Function1fb1
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	jp [hl]
+; 1fb1
+
+Function1fb1: ; 1fb1
+	ld e, a
+	ld d, $0
+	ld hl, $cf97
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	add hl, de
+	add hl, de
+	add hl, de
+	add hl, de
+	ret
+; 1fbf
+
+Function1fbf: ; 1fbf
+	ld hl, $cf71
+	call Function1ff0
+	ld hl, $cf81
+	call Function1ff0
+	ld hl, $cf91
+	call Function1ff0
+	ld hl, $cfa1
+	call Function1ff0
+	ld a, [rSVBK]
+	push af
+	ld a, $7
+	ld [rSVBK], a
+	xor a
+	ld hl, $dfff
+	ld [hld], a
+	ld [hld], a
+	ld a, l
+	ld [$cf71], a
+	ld a, h
+	ld [$cf72], a
+	pop af
+	ld [rSVBK], a
+	ret
+; 1ff0
+
+Function1ff0: ; 1ff0
+	ld bc, $0010
+	xor a
+	call ByteFill
+	ret
+; 1ff8
+
+Function1ff8: ; 1ff8
+	push af
+	and $3
+	jr z, .asm_2007
+	ld hl, $cf81
+	bit 3, [hl]
+	jr nz, .asm_2007
+	call PlayClickSFX
+
+.asm_2007
+	pop af
+	ret
+; 2009
+
+
+PlayClickSFX: ; 2009 
+	push de
+	ld de, SFX_READ_TEXT_2
+	call StartSFX
+	pop de
+	ret
+; 0x2012
+
+Function2012: ; 2012
+	call Function1d4f
+	call Functiona46
+	call Function1c07
+	ret
+; 201c
+
+Function201c: ; 201c
+	ld [hBuffer], a
+	ld a, [hROMBank]
+	push af
+	ld a, [hBuffer]
+	rst Bankswitch
+
+	call PlaceString
+	pop af
+	rst Bankswitch
+
+	ret
+; 202a
+
+Function202a: ; 202a
+	ld a, [hROMBank]
+	ld [$cf94], a
+	ld a, $9
+	ld hl, $400e
+	rst FarCall
+	ld a, [$cf88]
+	ret
+; 2039
+
+Function2039: ; 2039
+	ld a, [hROMBank]
+	ld [$cf94], a
+	ld a, $9
+	ld hl, $4022
+	rst FarCall
+	ld a, [$cf88]
+	ret
+; 2048
+
+Function2048: ; 2048
+	ld a, [hROMBank]
+	ld [$cf94], a
+	ld a, $9
+	ld hl, $403c
+	rst FarCall
+	ld a, [$cf88]
+	ret
+; 2057
+
+Function2057: ; 2057
+	ld a, [hROMBank]
+	push af
+	ld a, $21
+	rst Bankswitch
+
+	call $42db
+	pop af
+	rst Bankswitch
+
+	ret
+; 2063
+