diff --git a/.gitignore b/.gitignore
index 50bd2ea..114e326 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,5 @@ c64/*.prg
 c64/tests/
 
 inputs/
+
+.vim/
diff --git a/c64/day01.asm b/c64/day01.asm
index 284a63b..36eda7c 100644
--- a/c64/day01.asm
+++ b/c64/day01.asm
@@ -20,6 +20,8 @@
 .const inner_value    = $fd
 
 day01:
+    jsr tree_clear
+
     move_16_imm($03, str_title)
     jsr write_string
 
diff --git a/c64/day05.asm b/c64/day05.asm
new file mode 100644
index 0000000..e6c22db
--- /dev/null
+++ b/c64/day05.asm
@@ -0,0 +1,193 @@
+// vim: filetype=kickass
+
+* = * "Day 05"
+
+
+//
+// day05
+//
+// Destroys: $03..04, $08..09, $0a..0d
+//
+.const column_min = $0a
+.const column_max = $0b
+.const row_min = $0c
+.const row_max = $0d
+
+.const input_ptr = $08
+.const max_value = $0e
+.const min_value = $2c
+
+// Conflicts with tree_values_lo and _hi
+.const buffer = $c800 // $c800..cfff
+day05:
+    move_16_imm($03, !str_title+)
+    jsr write_string
+
+    lda #0
+    tay
+!loop:
+    .for (var i = $0000; i < $0800; i += $0100)
+        sta buffer + i, y
+    iny
+    bne !loop-
+
+    move_16_imm(input_ptr, day05_input)
+    move_16_imm(max_value, 0)
+    move_16_imm(min_value, $ffff)
+
+    ldy #0
+!init_vars:
+    lda #128
+    sta row_max
+    lda #8
+    sta column_max
+
+    lda #0
+    sta row_min
+    sta column_min
+
+    !loop:
+        lda ($08), y
+
+        // TODO could be optimized easily
+        cmp #'F'
+        bne !else+
+            // lower half
+            lda row_min
+            adc row_max
+            lsr
+            sta row_max
+            jmp !next+
+        !else:
+        cmp #'B'
+        bne !else+
+            // upper half
+            lda row_min
+            adc row_max
+            lsr
+            sta row_min
+            jmp !next+
+        !else:
+        cmp #'L'
+        bne !else+
+            // lower half column
+            lda column_min
+            adc column_max
+        lsr
+            sta column_max
+            jmp !next+
+        !else:
+        cmp #'R'
+        bne !else+
+            // upper half column
+            lda column_min
+            adc column_max
+            lsr
+            sta column_min
+            jmp !next+
+        !else:
+        cmp #'\n'
+        bne !else+
+            lda #0; sta row_min + 1
+
+            // row_min *= 8
+            lda row_min
+            asl; rol row_min + 1
+            asl; rol row_min + 1
+            asl; rol row_min + 1
+
+            // row_min |= column_min
+            ora column_min
+            sta row_min
+
+            lda row_min + 1
+            cmp max_value + 1
+            bcc !not_max+
+            bne !max+
+            lda row_min
+            cmp max_value
+            bcc !not_max+
+            !max:
+                u16_u16_move(max_value, row_min)
+            !not_max:
+
+            lda min_value + 1
+            cmp row_min + 1
+            bcc !not_max+
+            bne !max+
+            lda min_value
+            cmp row_min
+            bcc !not_max+
+            !max:
+                u16_u16_move(min_value, row_min)
+            !not_max:
+
+            lda row_min + 1
+            clc
+            adc #>buffer
+            sta row_min + 1
+
+            ldx #0
+            lda #1
+            sta (row_min, x)
+
+            iny
+            bne !+
+                //.break
+                inc $09
+            !:
+            jmp !init_vars-
+        !else:
+            jmp !done+
+
+    !next:
+        iny
+        bne !+
+            //.break
+            inc $09
+        !:
+        jmp !loop-
+
+    !done:
+
+    u16_u16_move(udivmod32_dividend, max_value)
+    move_16_imm(udivmod32_dividend + 2, 0)
+    jsr print_decimal_u32
+    move_16_imm($03, str_part2)
+    jsr write_string
+
+    lda #>buffer
+    clc
+    adc min_value + 1
+    sta column_min + 1
+
+    // Find the first free seat
+    ldy min_value
+    !loop:
+        y_buf_inc(column_min)
+        lda (column_min), y
+        bne !loop-
+
+    sty udivmod32_dividend
+
+    lda column_min + 1
+    sec
+    sbc #>buffer
+    sta udivmod32_dividend + 1
+
+    move_16_imm(udivmod32_dividend + 2, 0)
+    jsr print_decimal_u32
+
+    rts
+
+
+!newline:
+    rts
+
+
+!str_title:
+    .text "# Day 05"
+    .byte '\n', '\n'
+    .text "Part 1: "
+    .byte 0
+
diff --git a/c64/main.asm b/c64/main.asm
index f97c9db..511c597 100644
--- a/c64/main.asm
+++ b/c64/main.asm
@@ -8,10 +8,6 @@
 .const SCREEN_RAM = $0400
 .const COLOR_RAM = $d800
 
-.const kernal_scinit = $ff81
-.const kernal_chrout = $ffd2
-.const kernal_write_byte = $e716
-
 .const zp_temp = $02
 .const cursor_pointer_lo = $05
 .const cursor_pointer_hi = $06
@@ -59,7 +55,6 @@ test_tree:
     move_16_imm($03, $1337)
     jsr tree_insert
 
-
     move_16_imm($03, $08)
     jsr tree_contains
     bne !fail+
@@ -118,31 +113,37 @@ test_tree:
 // main
 //
 main:
-    jsr clear_screen
-
-    // Swap out BASIC and kernal
     sei
-    lda %00110000
+    lda #$35
     sta $01
 
+    lda #49
+    sta $07
+    jsr setup_interrupt
+
+    jsr clear_screen
+    jsr draw_menu
+
     jsr generate_multiplication_tables
-    jsr tree_clear
-    //jsr test_tree
 
-
-    jsr day01
-
-!loop:
-    jmp !loop-
+    !:
+        jsr menu_update
+    jmp !-
 
 
 #import "day01.asm"
+#import "day05.asm"
 #import "screen.asm"
 #import "math.asm"
 #import "btree.asm"
+#import "menu.asm"
 
-* = *     "Day 01 Input"
+    * = * "Day 01 Input"
 day01_input:
     .import text "../rust/inputs/day01"
     .byte 0
 
+    * = * "Day 05 input"
+day05_input:
+    .import text "../inputs/05"
+    .byte 0
diff --git a/c64/math.asm b/c64/math.asm
index 2a54d66..42c6e15 100644
--- a/c64/math.asm
+++ b/c64/math.asm
@@ -352,12 +352,12 @@ generate_multiplication_tables:
 // TODO could probably be optimized further
 //
 // Input:
-//   - udivmod32_dividend: LSB of the dividend.
-//   - udivmod32_divisor: LSB of the divisor.
+//   - udivmod32_dividend ($10..$13): LSB of the dividend.
+//   - udivmod32_divisor ($14..$17): LSB of the divisor.
 //
 // Output:
-//   - udivmod32_result: LSB of the division result.
-//   - udivmod32_remainder: LSB of the modulo result.
+//   - udivmod32_result ($18..1b): LSB of the division result.
+//   - udivmod32_remainder ($1c..$1f): LSB of the modulo result.
 //
 // Destroys: a, $20..$2b
 //
@@ -515,4 +515,3 @@ udivmod32:
     bne !do_start-
 
     rts
-
diff --git a/c64/math.inc b/c64/math.inc
index 05e2890..1436efc 100644
--- a/c64/math.inc
+++ b/c64/math.inc
@@ -3,6 +3,7 @@
 .const square1_hi = $c200
 .const square2_lo = $c400
 .const square2_hi = $c600
+.const pearson_table = $c800
 
 .const tree_values_lo = $c900
 .const tree_values_hi = $ca00
@@ -58,7 +59,7 @@
 // Output:
 //  - $24..$25 - 16-bit unsigned result
 //
-// Destroys: a, x, $22..$25, $fd, $fe
+// Destroys: a, x, $22, $23, $fd, $fe
 //
 .macro u16_div10() {
     lda #$19
@@ -70,6 +71,7 @@
     jsr multiply_16bit_unsigned
 }
 
+// Destroys: zp_temp
 .macro i8_mul5_a() {
     sta zp_temp
     asl
@@ -109,6 +111,7 @@
     i16_i16_add(dst, $fd)
 }
 
+// Destroys: -
 .macro u32_mul2(lsb) {
     asl lsb + 0
     rol lsb + 1
@@ -116,6 +119,7 @@
     rol lsb + 3
 }
 
+// Destroys: a
 .macro u32_mul10(lsb) {
     u32_mul2(lsb)
 
@@ -134,6 +138,7 @@
     i32_i32_add(lsb, $2c)
 }
 
+// Destroys: a
 .macro i32_i16_add(dst, src) {
     clc
     lda dst + 0
@@ -147,6 +152,7 @@
 !:
 }
 
+// Destroys: a
 .macro i32_i32_add(dst, src) {
     clc
     lda dst + 0
@@ -184,12 +190,29 @@
     sta dst + 1
 }
 
-// Destroys: a, dst_lo, dst_hi
+// Destroys: a
 .macro i16_inc(dst) {
     lda #1
     i16_i8_add_a(dst)
 }
 
+.macro y_buf_inc(buffer) {
+    iny
+    bne !+
+        inc buffer + 1
+    !:
+}
+
+// Destroys: a
+.macro y_buf_dec(buffer) {
+    tya
+    bne !+
+        dec buffer + 1
+    !:
+    dey
+}
+
+// Destroys: a
 .macro i16_i16_sub_imm(dst_lo, dst_hi, src_lo, src_hi, imm) {
     sec
 
@@ -235,3 +258,17 @@
     cmp b + 1
     bne target
 }
+
+.macro pearson_hash(dst, buffer) {
+    lda #0
+    sta dst
+loop:
+    lda buffer, y
+    beq end
+    eor dst
+    tax
+    lda pearson_table, x
+    sta dst
+    jmp loop
+end:
+}
diff --git a/c64/menu.asm b/c64/menu.asm
new file mode 100644
index 0000000..6ff284d
--- /dev/null
+++ b/c64/menu.asm
@@ -0,0 +1,296 @@
+// vim: filetype=kickass
+
+.const PA = $dc00
+.const PB = $dc01
+.const DDRA = $dc02
+.const DDRB = $dc03
+
+* = * "Menu Routines"
+//
+// draw_menu
+//
+draw_menu:
+    lda $d018
+    and #%11110001
+    ora #%00000100
+    sta $d018
+
+    ldy #$fa + 1
+    sty $d020
+    sty $d021
+!:
+    // TODO Compression for the characters
+    lda menu_characters + $0000 - 1, y
+    sta SCREEN_RAM      + $0000 - 1, y
+    lda menu_characters + $00fa - 1, y
+    sta SCREEN_RAM      + $00fa - 1, y
+    lda menu_characters + $01f4 - 1, y
+    sta SCREEN_RAM      + $01f4 - 1, y
+    lda menu_characters + $02ee - 1, y
+    sta SCREEN_RAM      + $02ee - 1, y
+
+    lda menu_colors + $0000 - 1, y
+    sta COLOR_RAM   + $0000 - 1, y
+    lsr; lsr; lsr; lsr
+    sta COLOR_RAM   + $00fa - 1, y
+
+    lda menu_colors + $00fa - 1, y
+    sta COLOR_RAM   + $01f4 - 1, y
+    lsr; lsr; lsr; lsr
+    sta COLOR_RAM   + $02ee - 1, y
+
+    dey
+    bne !-
+
+    rts
+
+//
+// menu_update
+//
+menu_update:
+    lda PA
+    lsr
+    bcs !not_up+
+        lda $07
+        sec
+        sbc #8
+        cmp #49
+        bcc !wait+
+        sta $07
+        jmp !wait+
+    !not_up:
+
+    lsr
+    bcs !not_down+
+        lda $07
+        clc
+        adc #08
+        cmp #242
+        bcs !wait+
+        sta $07
+        jmp !wait+
+    !not_down:
+
+    lsr
+    lsr
+    lsr
+    bcs !done+
+        sei
+        jsr clear_screen
+
+        lda $07
+        lsr; lsr; lsr
+        sec
+        sbc #6
+        asl
+        tay
+
+        // Modify JSR instruction to jump to the right day
+        lda !days+, y
+        sta !jump+ + 1
+        lda !days+ + 1, y
+        sta !jump+ + 2
+
+    !jump:
+        jsr !done+
+
+!wait:
+    ldy #80
+    ldx #0
+    !:
+        !:
+            dex
+        bne !-
+        dey
+    bne !--
+
+!done:
+    rts
+
+!days:
+    .word day01 // 1
+    .word 0     // 2
+    .word 0     // 3
+    .word 0     // 4
+    .word day05 // 5
+    .word 0     // 6
+    .word 0     // 7
+    .word 0     // 8
+    .word 0
+    .word 0     // 9
+    .word 0
+    .word 0
+    .word 0     // 15
+    .word 0
+    .word 0     // 10
+    .word 0     // 14
+    .word 0
+    .word 0     // 11
+    .word 0     // 13
+    .word 0
+    .word 0     // 12
+    .word 0
+    .word 0
+    .word 0
+    .word 0
+
+//
+// setup_interrupt
+//
+setup_interrupt:
+    sei
+
+    SetRasterInterrupt(menu_irq)
+    move_16_imm($fffa, nmi_nop)
+
+    lda #$7f
+    sta $dc0d
+    sta $dd0d
+
+    lda #$01
+    sta $d019
+    sta $d01a
+
+    lda #$35
+    sta $01
+
+    cli
+    rts
+
+menu_irq:
+    pha
+    txa
+    pha
+    tya
+    pha
+
+    StabilizeRaster()
+    ldy #11
+    sty $d020
+    sty $d021
+
+    ldy #90
+!:
+    dey
+    bne !-
+
+    ldy #0
+    sty $d021
+    sty $d020
+
+    SetRasterInterrupt(menu_irq)
+
+    asl $d019
+
+    pla
+    tay
+    pla
+    tax
+    pla
+    rti
+
+nmi_nop:
+    rti
+
+.macro SetRasterInterrupt(address) {
+    move_16_imm($fffe, address)
+
+    lda $d011
+    and #$7f
+    sta $d011
+
+    lda $07
+    sta $d012
+}
+
+.macro StabilizeRaster() {
+    move_16_imm($fffe, stabilized_irq)
+    inc $d012
+
+    asl $d019
+
+    tsx
+
+    cli
+    nop
+    nop
+    nop
+    nop
+    nop
+    nop
+    nop
+    nop
+    nop
+
+stabilized_irq:
+    txs
+    sei
+
+    ldx #6
+!:
+    dex
+    bne !-
+    bit $00
+
+    lda $d012
+    cmp $d012
+    beq *+2
+}
+
+    .align $0100
+    * = * "Menu Data"
+menu_characters:
+    .byte $20,$20,$20,$20,$6f,$6f,$6f,$52,$52,$52,$46,$46,$46,$46,$42,$46,$46,$46,$46,$52,$52,$52,$6f,$6f,$6f,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$31,$2a,$2a
+    .byte $45,$45,$77,$77,$20,$2e,$27,$20,$20,$2d,$20,$20,$2d,$20,$20,$4d,$2d,$20,$2e,$27,$27,$68,$20,$68,$20,$77,$77,$45,$45,$44,$43,$40,$46,$52,$6f,$20,$20,$32,$20,$20
+    .byte $68,$20,$20,$68,$20,$27,$2e,$27,$2e,$20,$2d,$20,$20,$20,$2d,$20,$4d,$20,$2d,$27,$27,$3a,$20,$20,$68,$20,$68,$20,$20,$20,$68,$20,$20,$68,$20,$20,$20,$33,$20,$20
+    .byte $20,$20,$68,$20,$68,$20,$20,$68,$20,$27,$27,$2e,$2e,$27,$27,$27,$64,$1b,$1d,$2e,$27,$20,$20,$68,$20,$20,$20,$20,$68,$20,$20,$20,$68,$20,$68,$20,$20,$34,$20,$20
+    .byte $27,$2e,$20,$68,$20,$20,$68,$20,$20,$68,$20,$20,$64,$64,$6f,$4e,$63,$27,$27,$20,$20,$68,$20,$20,$68,$20,$20,$68,$20,$20,$20,$20,$20,$68,$20,$20,$20,$35,$2a,$2a
+    .byte $27,$20,$20,$2e,$2e,$6f,$6f,$6f,$6f,$6f,$4e,$77,$63,$63,$20,$20,$68,$20,$20,$68,$20,$20,$68,$20,$20,$20,$20,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$36,$20,$20
+    .byte $68,$20,$3a,$1b,$1d,$27,$2e,$20,$20,$20,$68,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$37,$20,$20
+    .byte $20,$20,$20,$27,$2e,$4d,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$38,$20,$20
+    .byte $20,$20,$68,$20,$20,$20,$4d,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$68,$20,$4d,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$39,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$4d,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$2e,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$4d,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$3a,$27,$27,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$68,$4d,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$64,$64,$64,$64,$20,$20,$27,$2e,$20,$2c,$20,$31,$35,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$4d,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$63,$63,$63,$63,$4d,$20,$20,$3a,$20,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$4d,$20,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$2e,$4d,$27,$20,$2c,$20,$20,$31,$30,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$4d,$20,$20,$20,$2e,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$20,$27,$2e,$1b,$1d,$20,$2c,$20,$31,$34,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$4d,$27,$27,$2c,$3a,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$64,$4e,$27,$2e,$2e,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$3a,$1b,$1d,$2e,$2e,$27,$20,$20,$20,$20,$20,$20,$20,$20,$20,$4e,$63,$68,$20,$20,$20,$27,$20,$31,$31,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$27,$27,$4d,$64,$64,$20,$20,$68,$20,$20,$20,$20,$20,$4e,$20,$20,$20,$20,$20,$20,$20,$20,$31,$33,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$68,$63,$63,$4d,$64,$64,$20,$20,$20,$20,$4e,$68,$20,$20,$20,$20,$20,$20,$68,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$63,$63,$4d,$64,$64,$4e,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$31,$32,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$68,$63,$63,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$68,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20
+    .byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$2e,$20,$2e,$2e,$20,$20,$20,$2e,$27,$20,$2e,$2e,$20,$20,$20,$20,$20,$20,$20,$20,$20
+
+menu_colors:
+    .byte $6f, $0e, $6e, $0e, $0e, $0e, $0e, $0e, $0e, $0e, $0e, $6e, $0e, $0e, $02, $0e, $0e, $0e, $0e, $0e  //  0;00 -  0;20 |  6;10 -  6;30
+    .byte $0e, $0e, $0e, $0e, $0e, $00, $00, $f0, $00, $00, $00, $00, $00, $50, $50, $10, $e0, $6f, $07, $07  //  0;20 -  1;00 |  6;30 -  7;10
+    .byte $0e, $0e, $0e, $0e, $0e, $01, $61, $0e, $0e, $61, $00, $00, $01, $00, $01, $01, $01, $0e, $01, $01  //  1;00 -  1;20 |  7;10 -  7;30
+    .byte $01, $06, $00, $06, $0e, $0e, $0e, $fe, $0e, $0e, $0e, $0e, $6e, $0e, $0e, $00, $10, $0f, $00, $60  //  1;20 -  2;00 |  7;30 -  8;10
+    .byte $06, $0e, $0e, $06, $0e, $01, $01, $01, $01, $0e, $01, $00, $00, $00, $01, $0e, $01, $0e, $01, $01  //  2;00 -  2;20 |  8;10 -  8;30
+    .byte $01, $01, $00, $00, $06, $00, $06, $00, $00, $00, $06, $03, $03, $06, $03, $60, $00, $1f, $00, $00  //  2;20 -  3;00 |  8;30 -  9;10
+    .byte $0e, $0e, $06, $0e, $06, $0e, $0e, $06, $0e, $01, $01, $01, $01, $01, $01, $01, $01, $01, $01, $01  //  3;00 -  3;20 |  9;10 -  9;30
+    .byte $01, $00, $00, $06, $00, $00, $00, $f0, $06, $00, $00, $00, $06, $0e, $06, $00, $00, $0f, $10, $00  //  3;20 -  4;00 |  9;30 - 10;10
+    .byte $65, $05, $00, $06, $0e, $0e, $06, $0e, $0e, $06, $01, $01, $01, $01, $01, $01, $01, $01, $01, $00  //  4;00 -  4;20 | 10;10 - 10;30
+    .byte $00, $06, $00, $00, $56, $00, $00, $06, $00, $00, $00, $00, $00, $06, $00, $00, $00, $0f, $07, $17  //  4;20 -  5;00 | 10;30 - 11;10
+    .byte $05, $00, $00, $05, $05, $01, $01, $01, $01, $01, $01, $01, $01, $01, $01, $00, $06, $00, $00, $06  //  5;00 -  5;20 | 11;10 - 11;30
+    .byte $00, $50, $56, $50, $00, $00, $00, $00, $00, $06, $00, $00, $00, $00, $00, $00, $00, $0f, $00, $60  //  5;20 -  6;00 | 11;30 - 12;10
+    .byte $16, $00, $05, $01, $01, $05, $05, $05, $00, $00                                                    //  6;00 -  6;10 | 12;10 - 12;20
+
+    .byte $00, $00, $00, $00, $00, $01, $f1, $f1, $01, $00, $00, $05, $05, $0e, $05, $00, $0f, $0f, $00, $00  // 12;20 - 13;00 | 18;30 - 19;10
+    .byte $00, $00, $00, $00, $00, $00, $60, $10, $10, $10, $10, $11, $00, $06, $00, $00, $10, $60, $00, $00  // 13;00 - 13;20 | 19;10 - 19;30
+    .byte $00, $00, $00, $00, $60, $01, $01, $01, $01, $01, $00, $00, $05, $0e, $0b, $00, $00, $00, $00, $00  // 13;20 - 14;00 | 19;30 - 20;10
+    .byte $00, $00, $00, $00, $00, $00, $00, $00, $00, $06, $10, $10, $11, $10, $10, $10, $06, $00, $00, $00  // 14;00 - 14;20 | 20;10 - 20;30
+    .byte $00, $00, $00, $01, $00, $00, $f0, $f0, $00, $05, $01, $05, $0e, $05, $00, $00, $0f, $0f, $00, $00  // 14;20 - 15;00 | 20;30 - 21;10
+    .byte $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $60, $11, $10, $00, $00, $05, $00, $00  // 15;00 - 15;20 | 21;10 - 21;30
+    .byte $00, $00, $60, $00, $00, $06, $00, $00, $00, $05, $05, $01, $01, $0e, $05, $00, $0f, $0f, $00, $00  // 15;20 - 16;00 | 21;30 - 22;10
+    .byte $00, $00, $00, $00, $00, $00, $00, $60, $00, $10, $00, $06, $00, $00, $01, $05, $05, $05, $05, $00  // 16;00 - 16;20 | 22;10 - 22;30
+    .byte $00, $06, $00, $00, $00, $00, $00, $00, $00, $01, $01, $05, $05, $05, $00, $00, $00, $00, $00, $00  // 16;20 - 17;00 | 22;30 - 23;10
+    .byte $00, $00, $00, $00, $00, $00, $00, $00, $00, $10, $10, $10, $00, $05, $01, $01, $05, $05, $05, $00  // 17;00 - 17;20 | 23;10 - 23;30
+    .byte $00, $00, $00, $00, $00, $00, $00, $00, $01, $01, $06, $00, $00, $00, $05, $00, $0f, $0f, $00, $00  // 17;20 - 18;00 | 23;30 - 24;10
+    .byte $00, $00, $00, $00, $00, $00, $00, $00, $00, $50, $e0, $50, $50, $00, $05, $05, $51, $51, $01, $50  // 18;00 - 18;20 | 24;10 - 24;30
+    .byte $50, $06, $00, $00, $00, $00, $00, $01, $00, $00                                                    // 18;20 - 18;30 | 24;30 - 25;00
diff --git a/c64/menu.pe b/c64/menu.pe
new file mode 100644
index 0000000..53deb08
--- /dev/null
+++ b/c64/menu.pe
@@ -0,0 +1 @@
+{"app":"PETSCII Editor","version":"3.0","data":"{\"app\":\"PETSCII Editor\",\"urlą\"http://petscii.krissz.hu/Ė\"mĦaąĀnaĹĜNew projectķauthĔNĿeĜķeđērVersionĜ3.0ķfileFĔmatŜŞŠŢĆŤŦėcreůeTiŀ:1607892427734ėlastSavŽſŕƁƃ794ƃ36971}ėoptųsļ\"paŪğƙ\"colodĔŕŸrtFũtŝĜnšƺ\"ŨŪœƀ\"nŃ-ņňŊŌėsƕeCounǀĕ:5ŸšcůƔƖǗǙǛĜyeƫėŎēǔƖǨǪōŏoǯeIǚŝvƯą10ėkeyboardLayǘŌĆuǫdžiŞtKȂƸwŴ\"drawŧȒƒClickĜțȝķēƵƩpƫĆǩȐcęsĔŬlƶȞȰDzƥƳȣpȄȆdȯĀĨźenĐĒĔą[]ŸhȆsĦɊŚąfƯɓǓņĒeɕɌ:ɘlɓȽcɑŞĦȯ[ĽŔĜC64 uăŝǡɓķmƷƲşngŪķbgǗƶǜ6ɐȆʃɠ1ƎĸulƩʉr1ǽėmʎʐƵĔ2ą2ėbĒŮȮɍ[ƃ,Ǿʝ1Ǿʦʪ9ʆ98,ʥ0ɏ[ƈʱǿʧʦ2ʆʹʽ0ʝʳ,[1ʶʾʨ˅ʿʦˉ˄Ǝˁʤʸˉʭ,˒˒ʹʲʴ˄ːʰˆˊʨ0˛2ǿˎ˄ʮ˥ʺǿ˔ʼʻ,ˣ˫˩˧˓˦˒ˎʥʹ˕ʪ˜˗˂˜ʽ˫˼ˉ˴ǿʶ̃Ǝ̄ʷˬʴ3ʸˇʺ̍Ǿʰ5ʆˣˋ˟˰ʩˇ˚˝̈˂˯̝˦ˤ̛[99ʫ̤˄7ˊ̨̣˓̤̫̓ʨ1ˠ˪ʼ˸̔ˀʴ˵̶̚˹ˢ˘ˈ˞ˇƎ̡̞̹̻̀ˉ˵ˍ̾Ǝ˼˅ˡˊ˛̸̀ːʝ˒ʥʼ͈̽˻˫̆̅͊͝˻̺˿͆˺˃ͧ͢ʝʥʶˎ̫̦ͭƄʺ̨ʩ̭̤̯ͪ̚Ǝ̚ͅͶ̼,̡̠͞˪;Ǝ4ʰ˕˫́,΅Ίʰ΋Ύʰͥ˄ʦ΍ˠ΄Άʰ25̷˂˵̌ΒΟ͚ͩ[̂͹̋ʆͿƈʴʸʆ΋̧ͱΌʦ̒Ϊˬδˢε̡Ψˍδͫ˘ͨηζͼˉΙǞʹσ͇Λʵ͹͕ʆ͗ʺ̡͟ʯ̻ʝʶέˉ7΢ͺʥ̑ˊ3ͷϝ˴̍ͫο΀ϓΖΰ΋̡͎Ϩ͌Ξϥΰˎ͔̇φͺ΢Τ΃ʺΧϏϵϣ϶ϔ8γζ̠π̡Ѓζ̆ϰ,ϝ΂Ͼ˱̈́ϱʩʸ̱χ̇ˎ̆ϛͿЂ͓ͷ̍΋·βΜϱΧΐͷϘʦƎ̊ϒ̨όϤ̟ʶЫ˖Ϙϱ·̺͌Α˾ˋϮͿΉͽͽлеͩФЄλκ϶ϻхуϷ΅˘ϏНάΘ͌͠ΣδЂϸο˘ΒϩЋ͌Βорјκμ˂ЃφφπʴΘΐˇͲƊ;ѩθϏιϷΩѢηѤ5ǞѦѴ̂ѷ;ѼЅγѶѸϼЀѵѼѥϪΔϧ҉ΏΌ̾̎ϭҏʺ҄̂̄ǿЗ͟ʴ͝˛Ą̈̄ѹωϷҗҔф΀Ƈʦҥ1ҧҩʨҥҁ˘Ҭ˅ΒЗ˛Ǝ̨3̉,Ͳ̴̅̐ϓ˅Ƈҙ҆ѼҨҫӄҦӅӃӀǞφϝӌЉӎҶѴΝ̳ѕ΁цϣҁ̡5ϬѫӜʱϓʰʰͬ˲ӣЍ˩ғҸʦӊя΃Үӊ31ѕ͗Φ;ӯҦ5γӒГӕѯϷ˜̆ͥЫԁʱԃ6ѧѭӞί6ӟ,ӡҙѰ̅ӁӊԏҮӅҌӃӆҊԎѲԏԛӬѺӎԊʫ̐ƎӚθӂѬ6ӌӰ1Ҝӎ1ӧЅѯΤԳ΃ԴƈԶ4ЈѣԑѽӊѷӉϼіԟԱѻӷ˻ҪԘԗՊՈӈ˂ˡ̅0ԤӰ5ӰՏ;Ց,Քՙԯ˂Ӎ՞ӏЉ԰՗ՐՒ՛ՀΙԐϥяҢՉ2Ͽ՝ՠ՟ӌԚ̆ӵӵ͞բԬөջԬմϏնӰҞѣϫӫ̄բІԑӧրԝѳҟ͝Լւ҅ԾԒԛվԛяօҘՇӇՌ֝ӄҙ֢̃֡̅;֤2֍̨֩Ө֪֩էѾՁЕԼ҇ѿՃ֒ԽԽҷղӎҭֵԸ־˘τׁջִ֎ԏ֘Ղω־Ե҃ՎԹ׋Է׋պגׁӭөϝʋτ4ׁ̦5ח9֓ҙӵҨׁח2לחםזָ˻עשԬח׭רװՕԿՇפөל׹תף׫˃3יͲ׮؂ח4Ͳ׿׽˄׺Ԭ̦؇؋׸ʺ̤σ̾؊5،כ؏؎ؒ׶׻ؕЦ׷ׯӶ؈؃׻צ؜ײ؈ןӴՕշجثԫةؚʵΙ΃ϝƈص4ط؄Ͳ̫رؠʋ؆יװ؀תؽ؝؎هنى̦إمʼƠʺҳқʼϛԬΧ׵˃׮3ѫً̦ךئب؟أؾ׮ذٗ1ױ׻׭ؔؑ٦ة٣اؾذ4״Ն׾ԫ٢ע؍؅ل٭١̦ٲקءؽٌحتچ2څمٰ٢٢٥ٵٯٟٱӮٴ׀ٓږЦˠ˛ُٕآٰذעٮأڊڑڟخڇ٦ٌ4ؑظڇͰهٌٽ՗̨ˡڳͰڴڲڂٗضӴڵ؆Օڮ5ҵ٠شۄڻۆڬ׼رѤڠτڄڦڈخէ3ؑڮծِڸڈ٬ٵӘֲۜ։Վډډֲշ٦ڌص۞֓ڝתʸש۬اۊڠרٿԒ،ۏۥ؁عڭ۸Γנ؛ڒҦלʨ٤ϓںڪۅۤ۩۝ۛڬېۘڶڶշ܌ںܐՕ܌ܖصշڶںӂ٤҂׼ؠּʵ҆څ؉ڇ܈׽܊ַۋۏƄ֮۩ܥܩۊۨܪܣ۶ۛӁϥګܘڿ؁ۚוؾٞ٧ۻۿ۰ڦҨؑۡԫڰڏڡطܺڸگܾ۾שƈؑѬݕ׻ڎԎګՕسؾۖݘݡڨ؊ܑګځۉڱ٣۵ڤ۽˃إܠ܌݉ڧ݌١מݵڹݴڤݎݙݭۜܧܫܴܷ܉ݿܵۺԎܬܑܽۘڔՎԼܰԧۚށыܻۅ܆ۆעܒݹݰݏ܍ހܲ܉֯Յޒ׍ڳѬҨץڙ֥ػۧۛݲޝޮӯܮַֈޠނ޳λܳޟֶܱܛ޵޷ޢۊ܏ڽ܎߃ڷڴԎ۹ۇ߉ܗش޲Ӌٷ܀ܦ՜ʵډݗ׎ƈΘۨס݆̫պބݭԩʱЊߣߢߥϘԪЦמݖڳٳ΃ߙ2Ӏժ΃ݝػٝߨԩ҄ߡߺߤ߻҄Ι܄ࠀѽࠁ߿Հܟݯࠇٜݸߎܳ޴ҙ0݊ީ˄˛9صߖڳۥ٫ؘيࠚ9ࠋԒիުߒК͎۳ءܰΥࠅٮݯ٢ݯݚ݆۠ڢܤ࠮ωݦ΃࠵ݡޖ࠹ࠝޤࠡާۗ࠾֧߬ࠗޭۏӵІ̸݉ߤ߆Ͱ߻߄ߛߒࡐޯۑލޠҫװڵڿތђࠒԘ֧͟Τ߯ѽ4ࠞށࡥمռׂדࡨࡤֳεҀ޹ࡰ޶޼޾˴߼ࡶߥ߽˂՚՚ՖՖࡻڿդ߱ࠂࢃ߿ࢄΚࢆ߰ࡔࡦѼࡿգգγӰϝ؁ЉӰߡ̧ࢂࢅ࢙ࢇ࢚ࠃΚࡏࡒ֥֣̅ࡈࢊܱߗࢧԳ࢟ߕࢢࢋࡲԼ֪ࢠې࡬ࠌԦ޾࡞ࢡࡑޱ࠯ࡐ޴ޣܢࡴλࢤߔࡅӰࢰࣂࡍࣈࡷ߸՝࢑࣍࢔࣏֋ࢺωׇߘ߮ࣖࣕࣘъԟࡳࢾԻࢶ۟ࢿࢭ޿Ԧ࢝ࣥࢃ΢ࣜࡪדԎ׊אࡳࢪڦࢰߚ˻ࡩׂ࣯ࣴࡨջ࣮ࢨԵ]]ƥɬNJɯɱȹɵƑDžɹdɻiɽɿʞʂʙʅʇrʑǽʌʖʏiʑʓƁʕʗचऑʛ:ʝ\"ʟtʡɪˏ̻˸ʬʮΐӖύԡ˖ψ˨Эд͆ˌтǿʥ̓ͥऻԄस͈ऴδͺ̠͖ϻʋϷԡк߹ुͩў֍वЍहͣтϢҗॊϻ̒Ԅड़ƃγ˯̖̏̕ʹЈक़ͿाѓиӝǾ̪͵҄॔ξ।߹ЏеӖ॰सʶӦԟलпԄ९̿ӥ˦ԺԈेԃहЈ͎ϹԝॉঃॕळऺӺ͙ϷঃߝەЪʝԥ঍঒ЮϱচॎԈΠ঍˾ϮέΈКҌনयϤΓΰहНࡡлҐΠДҀΥѕι࢐юίήέПђՄ࡮׍֌ңѡͦটՄν͆φυӂ̺ЕϊЍύह৅ϑ˽щ͑ʝϗЎсٔ0ח͈ϟ̸ϡңҞџҊΰϩˎϫґ০΋ЈаַϴॖϏ̠Їঐփৗӧє֑ԱЇγЊৣΰ˳Кʽब৘с৏Ҡঊ̆ЙРЛΒэѕѝԃۖ͘Ρ̈́ЦЉЏԨԃ˭शड़ৰਓгГжਖਁौ਎мॵ৛˹ў঒ঃϢчਰৄьկ˃ਵЍ৫ঌॿज़৻΀০ΒњʫψϙਁхӧӘҞজϒਦ˜˭षϒ੐˽ёͺ̓ਡ̙̾঎ॣ͏ਞঁ˰ॠদ͛Ӥ˙ਫ਼ਃ਩ˑ̴ॴਗρॸ੍ৎࠣԜӿ΢Ш঳ੵ̕ϛρˠБ̘͐ͻʴ̓੖੡̢̦Ҩ঻Ͱ̬ͮ΀ˋВ̠ઍ̵͆ਓਗ਼੫͋ӺॹӤઑξ͉Ϥ੒иϬਖ਼͒੧ϋ̇ਦਥৃદ੬঑ͤ΢઒с৔ʹઉ६঻અ̮৉ભশ੎વͽਨݮЯতΆӓਉ֏܉ԓ֛ԘԖՈΏ֖ѱֆࡺՓࢀࢎࢍࡽՑʴ՚ܠ՘ʹ૕ݔ૗ʿև׈࣭ࣻࣼ૟բࣷ࣡ীӖীؽ֞Չ૪Սʵ՘ࡾ૎ࢎ૰զհֺ՞ૣ૯՘ࡿࠎ͌ש૕ς૗૾ԫ૜૵ձձ૊Ч࣎ոֽࣹ࣫ূյ࣎ৼуࣔૄিՁܡЃ֋ଋׅѲ֐ুଖ߀҆କιଔ֕ૅՋ֜଩ӆ֠ࢬࢷମ֦֢ʴ֬֫଴7޲૦ࡤৈଌଡݭ࢑আਜ਼੻ЍঃІૡࢨ׀଍҂੊ੱք૞୅Դׄ૟׏׎࣪הݓ؄י݄ؗ޽ַۉ܆࠾ٱެࠅࠛ٧ٷٰ܈޲ܟୣن࠳Ѥ࠺Ҧڋמୡࢥӂݍؘؐ୬ଢߜޔࢱ୛োࠔݺ࠶ʦ࣒োୣ٨ڐ޺ޝ୴݈ߜݽଢޑ࠸࠷୞ןୢ؊ٻ٧كܠ୛݇ࢹ஌ܨގ׮ۖ࡜ʋْஞܯஆۦ஥ଡ଼୵ڐݨࢮτ஧׳ࠜ୨୿஬୿ஐ୨஧࠙ஈ୴۲ڂ୞୧ࢥעێࡑ߭஻ݷவ୲࣡஄୰ڂீொܜʼথࠓصࠏனோ்د׷ெڑ٤۹஗୨ک୻ەݒ˃ذ߂߄ݐ୬ݱ߃୤ݐہֻڱߊޕ௞୸ړࠦ௃ࢱஃܣ۔ѫީ߆ۓ௖ࡱࢭࣰࡑۣ࡚஬ݔంڣؠۮѓڢں۱୷۴ஂܶ׀ۻޗܼ׻8ଽ஫ٮߝࢇٱ܄܋ޜߟః׍௢߅ܔۅܓڳܑߋనனۿʸ୵ܡޞூ஋ݳఁࣟ௶ޝܭ୳ܯ݋ద௏఻అࢮܹ܇ఙؙݩ׮݁ٚݬܨ࠲సࢠޏޚݔ࠹௔މ౔ౖܿ߫஁୚ణ֥߳؟ݠ୮ڃݤܕ࠵౟౛஽௭வଽࠫ߉ްఇ஫ܝ౏૩ேஶ୞౵௛உރٴ఺హశܼއۺ؏௿ܕ࡚Ә౔୶܊ޓڇܖతԫޙ౫஁ఘܪ௎ܩࢽవیؤݧఏڏரఔڑ௎୩౬୪ݶ؈ٺ݃٢஖؇౦ࠜஂ୙ن݋ؓರ஗ಶ؝౷؜ٝ౸ଽநܥఈ௉ۉ౲چ஭֠ԒయۄؿߑఋಭفಱЦగ࠘ಸ࠙ౚَࣴ˪ّөڗڜఋ౎ೀݯ݁ಟಔುݼ಩୥٩ٷ஺ోௌ݄௅٦ಡ౭ಪټౕ౬ڀ೦ಯ௹ࣄݳ׀೭ಿ࠳೥౮೼೗೛അண࠿ڛЗۥڞ௶ಥ೴೽౶ޮݣಕݱ౉ಳ௤೺ѵࣇࡊ௧ࡍࡋଶࢻങഢஃૹեࡼഥ՛૴૮੐૙௔ബ୥ࢳౄࡧ୔ୈөറ׌ђࣜ಍ి࣢੉ࡉࡸ࣊ࡶ૔૱૒ദ૏Տ࢛࢘ൊࣦ࢜ഷ૑ഥൃ̚Ֆؠ૿ϓଁӐܢൌോ࢈ࠂఄޝ֦ࣂഺ୎ࣽഡࢫࢸ഻ృַࣆࣄഷ੉ࢵࡦൠ൬൥ڦಚ࣠ಙࣁ൲ࣃࡐ൫ࠢΜുീീ࣑̉࣎ඃ࣍Ԏଔඈࣗք߾ఊ࣠ࣞഽ୽ం੊ԥ࢙୞೎ߩಆඑ޾ഴս׍ૠ଼ࢾങࣲ޵େഴ૤ගԒඟࣾ}ɏ\"ɆeɈɪँƲłńSŹධŢʕɺĜɼɾDžşzeXą׎ථiෂYʜǞƳऑBĔऊǜǿ෍ʄBgąීƴʄCɧෘञङछʔʍ෠डʜėextූ෡झ\"෨෪ऐʄढत෯෫ऑ3ąϝථɜǀMट෬तs෼e෾෤ෲąʆ෻ĮǀsǸාȇǁĆhidऊයชɝsVįibɿ:trueओaŋŝSĦෞƳɧDůĻ:[[3ʝิЉี̰ԫʩʫӰ8ʝ฾Ԍ৙ǿ৚ไऻʆๅҸใǿเ์ู฼๏ึ๑ุื๔๒๕๓ึ܆ƉΊࢉʤ̤ơ̥๡๙ʆఀ๖ٞ๦Ǟ๖ƋΊ๩ʝƞЉ̤ఀǾЧ˞๴๡ͳʱ๟๟ΐЪҴ๋๎๖5ǿ๒ν๶ึ๳๕̤๯ఀ຋๮๭๗๬๔๫๙๩๱̤5ʰ๖ຈງ՘๖ຜຆ๵ຐึ՚ຄ՝๓ປມບຝีຖΊά๤ອ๲0̂ڳຊະຐຨຢຩ๘ົˊຠՙຼ̉ຶ๔ູຟຸຫໄຳˊБࣅΆັ๱ວ່ໆສ຿ພຽກӌุໂຐ๯๯ʩฺ໠๏ໟҸ˛ળય໔໇຿໅ຼ໩຺໮ຣຠ຅๔ຘ;ີ๰ຮ໮ູ໫໯໬໻໖໼ༀກຏิ̉໬ຌ็ҵ໗༆་຾໭໿༏༌༐໮ϛລำ໑໕৙༉້༘༁༑༞༝༠༐༅ༀູຓ༟༒༨༧༪༠௯༕༩໮༦།༯༳༫༴๔ຍ໼༣༶๪༚༻༵༿໳ນັ༪༺ཀໆ༱༾༡ཆໃ๙༜༮ཆ༌༱໾ཐཊຐ໴༾ཅཕ໓๓཈༗ཚ༫຋གྷΊ຿๚ນ໚຦ཟ༠ཝ༷๤ཀན໷๯ݗ໐ལ༷ທແཨཉ໿໻ຓອ4Ԥས༛ཀྵǾใག໸༸༩ཙཹ༌໴ི྆ືྊຒ໎༲༆ཱི๚ཱི༄ླྀཔ༳ອ๫໋ྃ༎༟ƅཀྵ๙ທ࢑ཧ༖ྣཔຈઈྜྷ໊ྞ༒ྡྷ཯ེ໒་ྉྚྷ๔ྫྷͲྮ໊ྡྷྐ๦ທ຃ྦྷ྿ྸ༯ྫ໧཮ྴ༝ྶྩཕྲ࿅࿐࿌࿄࿍࿓࿕࿃࿐࿔๮཭ྎ໮ཡཬ໸࿄ࣾǟʄฮtะาॉ࿩ѐਙ࿪࿬࿫࿭࿭ʨ࿯࿳࿮࿵ঌְ࿸۬֫ы࿶࿯ʦ࿶ηց࿿ԫ࿬ဃਝআ࿴࿰ဉ࿴Ё୉ৢ࿭௑ဆင࿩ϣಒဃ͌ဒηज़ज़ζ๤Ԡӎဍଟတਙထॉဥမဓဨ࿿ဝՁလॄဤခဎࡺՙုဣံဪဩဂिာြိပဲ[୉ဴτးဪျုွীီীպХҖဆǞၑယ၈࿹ၔ૦ၕအ૧၃ဗဇၗ၇ၟၘၡ࿺रပၓၞၢၨၞ૝਽ၩၭၧԱ၍৷࿸ဂ။ၮၶ฻଺ଠၕ်ၶၯѓฺဴସ଻ှၼၾႆၿဴ࿩ႅଟႇЁၖၽ࿸יʫְ૝ԱီႋၵЃႋζၒ႒ќఎ׃ၲႍါη၂၊ϣၒဓԤႈၸႢၡ႗ၛၒ၉ၳ࿿ႝ࿹႕ၡ၄ՓၛႇငၵܞׂၚႣ၏ႺႤၠႚၨࡪჂ႐ि္჆ခၝှၹჃၭ჎ငႣ჊Ⴎეၧʼ჏Ⴇၪႃმဇႛ჌സტၧဩყ႔სქ၏ॉႲႥႁႼၢ࿢ธฌɍතǙƸS࿦ȥჸėź჻ჽȦัࣿතขซeษħɍඳŁŃ ᄈɝᄑสɛᄉ඲ĘดţP2csSɸ඼Ć඾ऎුĔූหේĔSฃ෢घʘʄजतᄯठง:ฉ෨Ʈndහɡəฤ෮xᄺd්ᄾɣᅀदʡ࿥࿧˃၅ԫ˘ᅎʦႸફᅑߓზဒᅓ΀ဆდՁဓᅙˣᅛღᅝဃᅟᅐთᅢၰᅤწᅔᅧׄ၌ᅪၺၹჩᅨၥᅏᅫᅚᅗᅶᅍᅹᅒᅷୃძᅱᅴႂᆁᅮၘᅥᅾᆇᆄ׈ၯᆉᆌᆈᆏᆊ଒ᆃᆎᆑႌᆆᆐᆔᆙᆗᆕ჋ᆅრᆜლᆋᆛᆚᆟᆤႷᆘᆣᆩᆥᆪႷᄆėჺoჼฦᄄɎᄀŘᆱᄃჸඬ}"}
\ No newline at end of file
diff --git a/c64/screen.asm b/c64/screen.asm
index a6f7b01..a418ca7 100644
--- a/c64/screen.asm
+++ b/c64/screen.asm
@@ -8,6 +8,11 @@
 // Destroys: a, y
 //
 clear_screen:
+    lda #$06
+    sta $d021
+    lda #$0e
+    sta $d020
+
     ldy #0
 
 !loop:
@@ -49,12 +54,13 @@ clear_screen:
 //
 print_newline:
     sec
-    lda $05
+    lda cursor_pointer_lo
     adc #40
     sta cursor_pointer_lo
     bcc !done+
-    inc cursor_pointer_hi
-!done:
+        inc cursor_pointer_hi
+    !done:
+    // fallthrough
 
 
 //
@@ -141,7 +147,7 @@ write_string:
     jsr print_hex
 }
 
-// Destroys: a, x, y, $03
+// Destroys: a, x, y, zp_temp ($02)
 print_hex_0x:
     sta zp_temp
 
@@ -187,6 +193,10 @@ print_hex:
     .text "0123456789ABCDEF"
 
 
+// Input:
+//   - $03..$04: The number to print
+//
+// Destroys: a, y, $24..$25
 print_decimal_u16:
     ldy #6
 
@@ -196,21 +206,12 @@ print_decimal_u16:
 
 !loop:
     u16_div10()
-
-    lda $24
-    sta $22
-
-    lda $25
-    sta $23
-
+    u16_u16_move($22, $24)
     i16_mul10($22)
 
     i16_i16_sub($22, $23, $03, $04, $22, $23)
 
-    lda $24
-    sta $03
-    lda $25
-    sta $04
+    u16_u16_move($03, $24)
 
     lda $22
     clc
@@ -246,6 +247,9 @@ print_decimal_u16:
 //
 // Input:
 //   - udivmod32_dividend - Number to print
+//
+// Destroys: a, y, $02..$04, $10..$2b
+//
 print_decimal_u32:
     ldy #11
 
@@ -305,3 +309,31 @@ print_decimal_u32:
 
 !buffer:
     .fill 12, 0
+
+wait_space_then_reset:
+    ldx #$ff
+    stx $dc02
+    ldy #$00
+    sty $dc03
+
+!:
+    lda #$7f
+    sta $dc00
+    lda $dc01
+    and #$10
+    bne !-
+
+    move_16_imm($03, !str_resetting+)
+    jsr write_string
+
+    // Reset
+    lda #%00110111
+    sta $01
+    jmp $fce2
+
+    rts
+
+!str_resetting:
+    .byte '\n'
+    .text "Resetting..."
+    .byte 0
diff --git a/c64/zp.org b/c64/zp.org
new file mode 100644
index 0000000..10de637
--- /dev/null
+++ b/c64/zp.org
@@ -0,0 +1,70 @@
+| Address | i8_div5_a | u16_div10 | i8_mul5_a | i16_mul10 | multiply_8bit_* | multiply_16bit_* | multiply_32bit_* | udivmod32 | print_newline         | write_string | print_decimal_u16 | print_decimal_u32 | draw_menu | day05     |
+|         |           |           |           |           |                 |                  |                  |           | print_carriage_return |              |                   |                   |           |           |
+|         |           |           |           |           |                 |                  |                  |           | print_hex_0x          |              |                   |                   |           |           |
+|         |           |           |           |           |                 |                  |                  |           | print_hex             |              |                   |                   |           |           |
+|---------+-----------+-----------+-----------+-----------+-----------------+------------------+------------------+-----------+-----------------------+--------------+-------------------+-------------------+-----------+-----------|
+|     <r> |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           |           |
+|     $02 | temporary |           | temporary |           |                 |                  |                  |           | temporary             | temporary    | temporary         | temporary         |           |           |
+|     $03 |           | input     |           |           |                 |                  |                  |           |                       | input        | input (destroyed) | temporary         | temporary | temporary |
+|     $04 |           | input     |           |           |                 |                  |                  |           |                       | input        | input (destroyed) | temporary         | temporary | temporary |
+|     $05 |           |           |           |           |                 |                  |                  |           | state                 | state        | state             | state             | state     | state     |
+|     $06 |           |           |           |           |                 |                  |                  |           | state                 | state        | state             | state             | state     | state     |
+|     $07 |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   | state     |           |
+|     $08 |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $09 |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $0a |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $0b |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $0c |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $0d |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $0e |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           | temporary |
+|     $0f |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           |           |
+|     $10 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | input (destroyed) |           |           |
+|     $11 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | input (destroyed) |           |           |
+|     $12 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | input (destroyed) |           |           |
+|     $13 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | input (destroyed) |           |           |
+|     $14 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | temporary         |           |           |
+|     $15 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | temporary         |           |           |
+|     $16 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | temporary         |           |           |
+|     $17 |           |           |           |           |                 |                  |                  | input     |                       |              |                   | temporary         |           |           |
+|     $18 |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $19 |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $1a |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $1b |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $1c |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $1d |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $1e |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $1f |           |           |           |           |                 |                  |                  | output    |                       |              |                   | temporary         |           |           |
+|     $20 |           |           |           |           |                 |                  |                  | temporary |                       |              |                   | temporary         |           |           |
+|     $21 |           |           |           |           |                 |                  |                  | temporary |                       |              |                   | temporary         |           |           |
+|     $22 |           | temporary |           |           | output          | output           | temporary        | temporary |                       |              | temporary         | temporary         |           |           |
+|     $23 |           | temporary |           |           | output          | output           | temporary        | temporary |                       |              | temporary         | temporary         |           |           |
+|     $24 |           | output    |           |           |                 | output           | temporary        | temporary |                       |              | temporary         | temporary         |           |           |
+|     $25 |           | output    |           |           |                 | output           | temporary        | temporary |                       |              | temporary         | temporary         |           |           |
+|     $26 |           |           |           |           | input           | input            | temporary        | temporary |                       |              |                   | temporary         |           |           |
+|     $27 |           |           |           |           |                 | input            | temporary        | temporary |                       |              |                   | temporary         |           |           |
+|     $28 |           |           |           |           |                 |                  |                  | temporary |                       |              |                   | temporary         |           |           |
+|     $29 |           |           |           |           |                 |                  |                  | temporary |                       |              |                   | temporary         |           |           |
+|     $2a |           |           |           |           |                 |                  |                  | temporary |                       |              |                   | temporary         |           |           |
+|     $2b |           |           |           |           |                 |                  |                  | temporary |                       |              |                   | temporary         |           |           |
+|     $2c |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           |           |
+|     $2d |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           |           |
+|     $2e |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           |           |
+|     $2f |           |           |           |           |                 |                  |                  |           |                       |              |                   |                   |           |           |
+|     $30 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $31 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $32 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $33 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $34 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $35 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $36 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $37 |           |           |           |           |                 |                  | input            |           |                       |              |                   |                   |           |           |
+|     $38 |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $39 |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $3a |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $3b |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $3c |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $3d |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $3e |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $3f |           |           |           |           |                 |                  | output           |           |                       |              |                   |                   |           |           |
+|     $fd |           |           |           | temporary | input           | input            | temporary        |           |                       |              | temporary         |                   |           |           |
+|     $fe |           |           |           | temporary |                 | input            | temporary        |           |                       |              | temporary         |                   |           |           |