diff --git a/2019/day25/cli_processor.go b/2019/day25/cli_processor.go
new file mode 100644
index 0000000..f32fb0b
--- /dev/null
+++ b/2019/day25/cli_processor.go
@@ -0,0 +1,264 @@
+package main
+
+import (
+	"errors"
+	"strings"
+
+	"github.com/nsf/termbox-go"
+)
+
+type CliProc struct {
+	History     []string
+	HistoryIdx  int
+	Suggestions []string // Suggestions are 'autocomplete' commands
+	Proposals   []string // Proposals are proposed 'next' commands
+
+	Buffer string
+	Cursor int
+
+	Complete bool
+}
+
+func NewCLI() *CliProc {
+	c := CliProc{}
+	return &c
+}
+
+func (c *CliProc) handleEvent(event termbox.Event) error {
+	if c.Complete {
+		return nil
+	}
+	if event.Ch == 0 {
+		switch event.Key {
+		case termbox.KeyEnter:
+			// Execute command
+			c.Complete = true
+
+		case termbox.KeySpace:
+			c.putInBuffer(" ")
+
+		case termbox.KeyBackspace, termbox.KeyBackspace2:
+			if c.Cursor > 0 {
+				c.Buffer = c.Buffer[:c.Cursor-1] + c.Buffer[c.Cursor:]
+				c.Cursor = c.Cursor - 1
+			}
+		case termbox.KeyDelete:
+			if c.Cursor < len(c.Buffer) {
+				c.Buffer = c.Buffer[:c.Cursor] + c.Buffer[c.Cursor+1:]
+			}
+
+		case termbox.KeyArrowLeft:
+			if c.Cursor > 0 {
+				c.Cursor = c.Cursor - 1
+			}
+		case termbox.KeyArrowRight:
+			if c.Cursor < len(c.Buffer) {
+				c.Cursor = c.Cursor + 1
+			} else {
+				// Complete suggestion
+			}
+		case termbox.KeyHome:
+			c.Cursor = 0
+		case termbox.KeyEnd:
+			c.Cursor = len(c.Buffer)
+
+		case termbox.KeyArrowUp:
+			val, err := c.HistoryBack()
+			if err != nil {
+				return err
+			}
+			c.Buffer = val
+			c.Cursor = len(c.Buffer)
+
+		case termbox.KeyArrowDown:
+			val, err := c.HistoryForward()
+			if err != nil {
+				return err
+			}
+			c.Buffer = val
+			c.Cursor = len(c.Buffer)
+
+		case termbox.KeyTab:
+			// Complete suggestion
+			args := strings.Split(c.Buffer, " ")
+			acText := strings.TrimPrefix(c.GetAutocompleteText(), args[len(args)-1])
+			if len(acText) > 0 {
+				c.Buffer = c.Buffer + acText
+				c.Cursor = len(c.Buffer)
+			}
+
+		case termbox.KeyCtrlU:
+			// Delete everything from the cursor forward
+			c.Buffer = c.Buffer[c.Cursor:]
+			c.Cursor = 0
+		}
+	} else {
+		c.putInBuffer(string(event.Ch))
+		/*
+			if c.Cursor == len(c.Buffer) {
+				c.Buffer = c.Buffer + string(event.Ch)
+			} else {
+				c.Buffer = c.Buffer[:c.Cursor] + string(event.Ch) + c.Buffer[c.Cursor:]
+			}
+			c.Cursor = c.Cursor + 1
+		*/
+	}
+	return nil
+}
+
+func (c *CliProc) putInBuffer(v string) {
+	c.Buffer = c.Buffer[:c.Cursor] + v + c.Buffer[c.Cursor:]
+	c.Cursor = c.Cursor + 1
+}
+
+func (c *CliProc) ClearBuffer() {
+	c.Buffer = ""
+	c.Cursor = 0
+	c.Complete = false
+}
+
+func (c *CliProc) GetBuffer() string {
+	return c.Buffer
+}
+
+func (c *CliProc) HistoryBack() (string, error) {
+	if len(c.History) < c.HistoryIdx+1 {
+		return "", errors.New("Already at oldest command")
+	}
+	c.HistoryIdx = c.HistoryIdx + 1
+	return c.History[len(c.History)-c.HistoryIdx], nil
+}
+
+func (c *CliProc) HistoryForward() (string, error) {
+	if c.HistoryIdx == 0 {
+		return "", errors.New("Already at most recent command")
+	}
+	c.HistoryIdx = c.HistoryIdx - 1
+	if c.HistoryIdx == 0 {
+		return "", nil
+	}
+	return c.History[len(c.History)-c.HistoryIdx], nil
+}
+
+func (c *CliProc) Suggest(cmd string) string {
+	allSuggestions := c.GetAllSuggestions(cmd)
+	if len(allSuggestions) == 0 {
+		return ""
+	}
+	return allSuggestions[0]
+}
+
+func (c *CliProc) GetDisplaySuggestions() []string {
+	var ret []string
+	v := c.GetAllSuggestions(c.Buffer)
+	if len(c.Buffer) > 0 {
+		for k := range v {
+			if strings.HasPrefix(v[k], c.Buffer) {
+				ret = append(ret, v[k])
+			}
+		}
+	} else {
+		// Normally, filter out 'drop's
+		for k := range v {
+			if !strings.HasPrefix(v[k], "drop ") {
+				ret = append(ret, v[k])
+			}
+		}
+	}
+	return ret
+}
+
+func (c *CliProc) GetAllSuggestions(cmd string) []string {
+	var ret []string
+	args := strings.Fields(cmd)
+	if len(args) == 0 {
+		// Return all commands
+		for _, v := range c.Suggestions {
+			ret = append(ret, v)
+		}
+		return ret
+	} else if len(args) == 1 && !strings.HasSuffix(cmd, " ") {
+		for _, v := range c.Suggestions {
+			if strings.HasPrefix(v, args[0]) {
+				ret = append(ret, v)
+			}
+		}
+	}
+	return ret
+}
+
+func (c *CliProc) Draw(x, y int, bg, fg termbox.Attribute) {
+	DrawString("[ "+strings.Join(c.GetDisplaySuggestions(), ", ")+" ]", x, y, bg, fg)
+	y = y + 1
+	prompt := '>'
+	termbox.SetCell(x, y, prompt, bg, fg)
+	x = x + 2
+	for k := range c.Buffer {
+		useFg, useBg := bg, fg
+		if k == c.Cursor {
+			useFg, useBg = fg, bg
+		}
+		termbox.SetCell(x+k, y, rune(c.Buffer[k]), useFg, useBg)
+	}
+	args := strings.Split(c.Buffer, " ")
+	acText := strings.TrimPrefix(c.GetAutocompleteText(), args[len(args)-1])
+	if len(acText) > 0 {
+		for k := range acText {
+			useFg, useBg := bg|termbox.AttrBold, fg
+			if k == 0 && c.Cursor == len(c.Buffer) {
+				useFg, useBg = fg|termbox.AttrBold, bg
+			}
+			termbox.SetCell(x+len(c.Buffer)+k, y, rune(acText[k]), useFg, useBg)
+		}
+	} else {
+		if c.Cursor == len(c.Buffer) {
+			termbox.SetCell(x+len(c.Buffer), y, ' ', fg, bg)
+		}
+	}
+}
+
+func (c *CliProc) GetAutocompleteText() string {
+	suggestions := c.GetAllSuggestions(c.Buffer)
+	if len(suggestions) == 1 {
+		args := strings.Split(c.Buffer, " ")
+		return strings.TrimPrefix(suggestions[0], args[len(args)-1])
+	} else if len(suggestions) > 1 {
+		// Find how many characters we _can_ autocomplete
+		var ret string
+		for k := range suggestions[0] {
+			allHave := true
+			for wrk := range suggestions {
+				if len(suggestions[wrk]) <= k || suggestions[0][k] != suggestions[wrk][k] {
+					allHave = false
+					break
+				}
+			}
+			if allHave {
+				ret = ret + string(suggestions[0][k])
+			}
+		}
+		return ret
+	}
+	return ""
+}
+
+func (c *CliProc) ClearSuggestions() {
+	c.Suggestions = nil
+}
+
+func (c *CliProc) AddSuggestion(s string) {
+	c.AddSuggestions([]string{s})
+}
+func (c *CliProc) AddSuggestions(s []string) {
+	c.Suggestions = append(c.Suggestions, s...)
+}
+
+func (c *CliProc) RemoveSuggestion(s string) {
+	var i int
+	for i = range c.Suggestions {
+		if c.Suggestions[i] == s {
+			break
+		}
+	}
+	c.Suggestions = append(c.Suggestions[:i], c.Suggestions[i+1:]...)
+}
diff --git a/2019/day25/debug-log b/2019/day25/debug-log
new file mode 100644
index 0000000..9c0d1a1
--- /dev/null
+++ b/2019/day25/debug-log
@@ -0,0 +1,1382 @@
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+1163: ADD 21201 (-2, 1, -2)
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+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3117)
+
+1163: ADD 21201 (-2, 1, -2)
+
+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3118)
+
+1163: ADD 21201 (-2, 1, -2)
+
+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3119)
+
+1163: ADD 21201 (-2, 1, -2)
+
+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3120)
+
+1163: ADD 21201 (-2, 1, -2)
+
+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3121)
+
+1163: ADD 21201 (-2, 1, -2)
+
+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3122)
+
+1163: ADD 21201 (-2, 1, -2)
+
+1148: ADD 22201 (1, -6, 1)
+
+1152: ADD 21201 (-2, 0, 2)
+
+2709: ADD 1201 (-1, 0, 2715)
+
+2713: ADD 1101 (0, -1, 3123)
+
+1163: ADD 21201 (-2, 1, -2)
+
+2660: ADD 21101 (0, 0, -3)
+
diff --git a/2019/day25/event_buffer.go b/2019/day25/event_buffer.go
new file mode 100644
index 0000000..9fd82b0
--- /dev/null
+++ b/2019/day25/event_buffer.go
@@ -0,0 +1,175 @@
+package main
+
+import (
+	"strconv"
+	"time"
+
+	"github.com/nsf/termbox-go"
+)
+
+const (
+	DefaultExpireTime = time.Second / 2
+)
+
+type EventBuffer struct {
+	UpdateTime time.Time
+	TimeoutLen time.Duration
+	Buffer     []termbox.Event
+	CursorPos  int
+}
+
+func NewEventBuffer() *EventBuffer {
+	return &EventBuffer{
+		TimeoutLen: DefaultExpireTime,
+		CursorPos:  -1,
+	}
+}
+
+func (eb *EventBuffer) checkExpiration() {
+	if eb.TimeoutLen != -1 && time.Now().Sub(eb.UpdateTime) > eb.TimeoutLen {
+		eb.Clear()
+	}
+}
+
+func (eb *EventBuffer) StartsWith(r rune) bool {
+	eb.checkExpiration()
+	return len(eb.Buffer) > 0 && eb.Buffer[0].Ch == r
+}
+
+func (eb *EventBuffer) Add(event termbox.Event) {
+	eb.checkExpiration()
+	if event.Key == termbox.KeyCtrlU {
+		eb.Clear()
+	} else if event.Key == termbox.KeyBackspace || event.Key == termbox.KeyBackspace2 {
+		eb.Backspace()
+	} else {
+		eb.Buffer = append(eb.Buffer, event)
+	}
+	eb.UpdateTime = time.Now()
+}
+
+func (eb *EventBuffer) Backspace() {
+	eb.checkExpiration()
+	if len(eb.Buffer) >= 1 {
+		eb.Buffer = eb.Buffer[:len(eb.Buffer)-1]
+	}
+	eb.UpdateTime = time.Now()
+}
+
+func (eb *EventBuffer) MoveCursorBack() {
+	if eb.CursorPos > 0 {
+		eb.CursorPos--
+	}
+}
+
+func (eb *EventBuffer) MoveCursorForward() {
+	if eb.CursorPos < len(eb.Buffer) {
+		eb.CursorPos++
+	}
+}
+
+func (eb *EventBuffer) SetCursorToStart() {
+	eb.CursorPos = 0
+}
+
+func (eb *EventBuffer) SetCursorToEnd() {
+	eb.CursorPos = len(eb.Buffer)
+}
+
+func (eb *EventBuffer) Clear() {
+	eb.Buffer = nil
+	eb.UpdateTime = time.Now()
+}
+
+func (eb *EventBuffer) Events() []termbox.Event {
+	eb.checkExpiration()
+	return eb.Buffer
+}
+
+func (eb *EventBuffer) String() string {
+	eb.checkExpiration()
+	var ret string
+	for _, v := range eb.Buffer {
+		if v.Ch != 0 {
+			ret = ret + string(v.Ch)
+		} else {
+			switch v.Key {
+			case termbox.KeySpace:
+				ret = ret + " "
+			case termbox.KeyArrowUp:
+				ret = ret + string(ChUpKeyValue)
+			case termbox.KeyArrowRight:
+				ret = ret + string(ChRightKeyValue)
+			case termbox.KeyArrowDown:
+				ret = ret + string(ChDownKeyValue)
+			case termbox.KeyArrowLeft:
+				ret = ret + string(ChLeftKeyValue)
+			case termbox.KeyEnter:
+				ret = ret + string(ChEnterKeyValue)
+			}
+		}
+	}
+	return ret
+}
+
+func (eb *EventBuffer) SetToString(s string) {
+	eb.Clear()
+	for _, v := range s {
+		if v == '\n' {
+			eb.Add(termbox.Event{Ch: 0, Key: termbox.KeyEnter})
+		} else {
+			eb.Add(termbox.Event{Ch: v})
+		}
+	}
+}
+
+func (eb *EventBuffer) MatchesString(s string) bool {
+	eb.checkExpiration()
+	if len(s) != len(eb.Buffer) {
+		return false
+	}
+	return s == eb.String()
+}
+
+func (eb *EventBuffer) MatchesEvents(events []termbox.Event) bool {
+	eb.checkExpiration()
+	if len(events) != len(eb.Buffer) {
+		return false
+	}
+	for k := range events {
+		if events[k].Ch != eb.Buffer[k].Ch || events[k].Key != eb.Buffer[k].Key {
+			return false
+		}
+	}
+	return true
+}
+
+func (eb *EventBuffer) StartsWithKey(key termbox.Key) bool {
+	eb.checkExpiration()
+	if len(eb.Buffer) > 0 {
+		return eb.Buffer[0].Key == key
+	}
+	return false
+}
+
+func (eb *EventBuffer) Size() int {
+	eb.checkExpiration()
+	return len(eb.Buffer)
+}
+
+func (eb *EventBuffer) IsNumber() bool {
+	_, err := strconv.Atoi(eb.String())
+	return err == nil
+}
+
+func (eb *EventBuffer) Number() (int, error) {
+	return strconv.Atoi(eb.String())
+}
+
+func (eb *EventBuffer) OptNumber(def int) int {
+	ret, err := strconv.Atoi(eb.String())
+	if err != nil {
+		return def
+	}
+	return ret
+}
diff --git a/2019/day25/input b/2019/day25/input
new file mode 100644
index 0000000..a39706c
--- /dev/null
+++ b/2019/day25/input
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diff --git a/2019/day25/main.go b/2019/day25/main.go
new file mode 100644
index 0000000..8f2ce52
--- /dev/null
+++ b/2019/day25/main.go
@@ -0,0 +1,96 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	intcode "git.bullercodeworks.com/brian/adventofcode/2019/intcode-processor"
+	h "git.bullercodeworks.com/brian/adventofcode/helpers"
+	termboxScreen "github.com/br0xen/termbox-screen"
+)
+
+const (
+	MODE_RUN = iota
+	MODE_EXIT
+)
+
+var UI *termboxScreen.Manager
+
+func main() {
+	var err error
+	filename := h.GetArgNumber(1)
+	var prog []int
+	if filename != "" {
+		prog = intcode.ReadIntCodeFile("input")
+	} else {
+		prog = LoadMyInput()
+	}
+	p := intcode.NewProgram(prog)
+
+	UI = termboxScreen.NewManager()
+	if err = UI.AddAndInitializeScreen(NewScreen(p)); err != nil {
+		UI.Close()
+		fmt.Println(err.Error())
+		os.Exit(1)
+	}
+	UI.SetRefreshRate(time.Second / 10)
+	if err := UI.Loop(); err != nil {
+		fmt.Println("Error:", err.Error())
+		os.Exit(1)
+	}
+}
+
+/*
+func part1(prog []int) {
+	p := intcode.NewProgram(prog)
+	go func() {
+		for p.State == intcode.RET_OK {
+			printAllOutput(p)
+			for !p.NeedsInput() {
+				time.Sleep(time.Millisecond)
+			}
+			var err error
+			var inp string
+			err = errors.New("Need Input")
+			for err != nil {
+				fmt.Print("> ")
+				reader := bufio.NewReader(os.Stdin)
+				inp, err = reader.ReadString('\n')
+				if inp == "\n" {
+					err = errors.New("Need Input")
+				}
+			}
+			fmt.Print("Sending input: ")
+			for k := range inp {
+				for !p.NeedsInput() {
+					time.Sleep(1)
+				}
+				fmt.Print(string(inp[k]))
+				p.Input(int(inp[k]))
+			}
+			fmt.Println()
+		}
+	}()
+	fmt.Println("BEGIN")
+	p.Run()
+	fmt.Println("END")
+}
+
+func printAllOutput(p *intcode.Program) {
+	for {
+		if p.NeedsInput() {
+			return
+		}
+		if p.NeedsOutput() {
+			out := p.Output()
+			fmt.Print(string(out))
+		}
+		time.Sleep(1)
+	}
+}
+*/
+
+func LoadMyInput() []int {
+	return []int{109, 4795, 21102, 3124, 1, 1, 21102, 1, 13, 0, 1105, 1, 1424, 21102, 166, 1, 1, 21102, 24, 1, 0, 1106, 0, 1234, 21101, 31, 0, 0, 1105, 1, 1984, 1106, 0, 13, 6, 4, 3, 2, 52, 51, 21, 4, 28, 56, 55, 3, 19, -9, -10, 47, 89, 88, 90, 90, 6, 77, 73, 85, 71, 1, 76, 68, 63, 65, 22, -27, 70, 76, 81, 87, 5, 105, 105, 107, 108, 95, 4, 97, 92, 109, 109, 5, 110, 105, 110, 108, 95, 4, 115, 96, 109, 109, 13, -3, 59, 101, 85, 92, 97, 13, 84, 80, 92, 78, 34, -15, 26, -16, 46, 88, 72, 79, 84, 0, 72, 76, -3, 85, 74, 79, 75, -8, 64, 68, 75, 57, 65, 70, 64, 66, 72, 8, -41, 32, -22, 56, 77, 82, -4, 60, 76, 62, 70, -2, 74, -11, 55, 52, 68, 67, 73, 56, 60, 52, -20, 44, 56, 66, -24, 48, 58, 42, 49, 54, -16, -53, 10, 0, 56, 99, 96, 95, 82, 94, 83, 45, -9, 23, -13, 61, 85, 88, 74, 71, 82, 73, 79, 73, 89, 67, 65, -4, 62, 73, 70, 69, 56, 68, 57, 2, -35, 24, -14, 64, 85, 90, 4, 70, 67, 79, 7, 83, -2, 68, 75, -5, 78, 65, 57, 75, -10, 76, 53, 76, 0, -37, 31, -21, 57, 78, 83, -3, 64, 74, 72, 0, 76, -9, 73, 58, 57, -13, 70, 57, 49, 67, -18, 54, 64, 48, 55, -23, 48, 44, 56, 42, -14, -51, 14, -4, 74, 95, 100, 14, 97, 77, 86, 79, 9, 92, 79, 75, 5, 27, -17, 61, 82, 87, 1, 68, 78, 76, 4, 80, -5, 66, 58, 78, 60, -10, 73, 60, 52, 70, -15, 57, 67, 51, 58, -6, -43, 14, -4, 74, 95, 100, 14, 81, 94, 90, 90, 9, 92, 79, 75, 5, 60, -50, 23, 42, 38, -32, 38, 39, 30, 42, 47, -38, 30, 36, 28, 25, 41, 38, 34, 31, 18, 23, 29, 19, 33, -52, 20, 29, -55, 27, 27, 27, 8, 15, -61, 22, 16, -64, 24, 13, 18, -54, -69, -70, -14, 7, 12, -74, -8, -11, 1, -71, 5, -80, -4, -3, 3, -15, -84, -85, -109, 29, -19, 59, 80, 85, -1, 82, 62, 71, 64, -6, 77, 64, 60, -10, 62, 66, 57, 59, 63, 57, 67, 51, -19, 56, 58, 57, 57, -10, -47, 44, -34, 39, 58, 54, -16, 60, 61, 57, 64, 48, 56, -23, 52, 40, 60, 38, -28, 44, 53, -31, 55, 32, 55, -35, 48, 42, 41, -39, 32, 38, 42, -42, -44, 12, 33, 38, -48, 28, 19, 25, 32, -52, -76, -77, 59, -49, 13, 55, -30, 42, 51, -33, 49, 50, 32, 31, 31, 39, 36, 48, -42, 24, 35, 32, 34, 29, 21, 35, 19, 25, 37, -53, 14, 10, 26, 18, -57, -59, -3, 18, 23, -63, 1, 17, 3, -67, 1, -4, 14, -2, 6, -73, -8, 14, -76, -12, -78, -40, 2, 4, -13, -82, -106, -107, 35, -25, 53, 74, 79, 0, 74, 60, -10, 65, 53, 72, 64, 52, 56, 52, 50, -19, 53, 57, 62, 56, -24, 58, 54, 38, 39, 40, -29, -31, 2, 56, 35, -34, -58, -59, 138, -128, -74, -108, -33, -31, -26, -44, -101, -114, -33, -37, -51, -39, -35, -47, -54, -122, -37, -45, -52, -59, -58, -128, -46, -65, -42, -49, -133, -132, -102, -60, -68, -56, -55, -139, -141, -106, -61, -65, -72, -78, -64, -148, -70, -72, -151, -68, -81, -81, -72, -156, -74, -86, -86, -80, -161, -97, -81, -95, -165, -94, -98, -103, -83, -97, -102, -90, -173, -90, -103, -111, -99, -178, -95, -108, -112, -182, -115, -115, -101, -117, -120, -104, -120, -122, -191, -106, -128, -118, -110, -127, -196, -196, -199, -135, -123, -134, -203, -115, -126, -121, -207, -143, -127, -141, -211, -143, -139, -145, -148, -132, -148, -150, -219, -154, -156, -155, -148, -224, -141, -147, -227, -144, -157, -161, -231, -165, -161, -165, -168, -161, -157, -159, -166, -162, -157, -228, -265, 138, -128, -74, -108, -33, -31, -26, -44, -101, -114, -33, -37, -51, -39, -35, -47, -54, -122, -37, -45, -52, -59, -58, -128, -46, -65, -42, -49, -133, -132, -102, -60, -68, -56, -55, -139, -141, -106, -61, -65, -72, -78, -64, -148, -70, -72, -151, -68, -81, -81, -72, -156, -74, -86, -86, -80, -161, -97, -81, -95, -165, -90, -94, -97, -97, -86, -102, -90, -173, -90, -103, -111, -99, -178, -95, -108, -112, -182, -115, -115, -101, -117, -120, -104, -120, -122, -191, -106, -128, -118, -110, -127, -196, -196, -199, -135, -123, -134, -203, -115, -126, -121, -207, -143, -127, -141, -211, -143, -139, -145, -148, -132, -148, -150, -219, -154, -156, -155, -148, -224, -141, -147, -227, -144, -157, -161, -231, -165, -161, -165, -168, -161, -157, -159, -166, -162, -157, -228, -265, 263, -253, -199, -233, -158, -156, -151, -169, -226, -239, -158, -162, -176, -164, -160, -172, -179, -247, -162, -170, -177, -184, -183, -253, -171, -190, -167, -174, -258, -257, -227, -183, -197, -187, -175, -182, -193, -184, -268, -202, -191, -194, -192, -197, -205, -191, -207, -276, -278, -222, -201, -196, -282, -206, -219, -196, -286, -207, -206, -210, -223, -222, -223, -225, -280, -293, -296, -232, -220, -231, -300, -212, -223, -218, -304, -236, -228, -223, -239, -227, -310, -227, -240, -244, -314, -248, -237, -250, -243, -239, -247, -237, -308, -345, -273, -260, -248, -243, -263, -329, -252, -252, -248, -260, -267, -266, -253, -337, -249, -260, -255, -259, -342, -260, -267, -280, -270, -271, -348, -281, -268, -272, -279, -285, -342, -355, -280, -278, -279, -284, -277, -361, -282, -278, -274, -275, -290, -298, -300, -369, -300, -292, -290, -373, -309, -375, -299, -298, -301, -310, -302, -297, -370, -383, -302, -316, -321, -311, -315, -299, -321, -308, -392, -306, -322, -330, -312, -397, -326, -334, -317, -401, -330, -338, -324, -325, -337, -329, -339, -341, -398, -411, -347, -335, -346, -415, -334, -352, -350, -346, -341, -338, -422, -334, -345, -340, -344, -427, -345, -357, -357, -351, -432, -365, -361, -353, -367, -370, -354, -363, -351, -427, -464, -441, -397, -373, -434, -447, -376, -380, -374, -375, -373, -452, -454, -398, -377, -372, -458, -376, -388, -382, -377, -387, -396, -465, -400, -398, -468, -404, -404, -395, -403, -473, -390, -396, -476, -406, -409, -395, -480, -408, -404, -483, -418, -396, -486, -403, -399, -409, -417, -413, -421, -493, 37, -5, 73, 71, -8, 75, 62, 58, -12, 62, 55, 74, 64, 48, 50, -19, 45, 63, -22, 61, 48, 44, -26, 50, 37, 44, 48, -31, 33, 40, 48, 41, 43, 30, 37, -25, -38, -63, 0, 0, 109, 7, 21102, 0, 1, -2, 22208, -2, -5, -1, 1205, -1, 1169, 22202, -2, -4, 1, 22201, 1, -6, 1, 21201, -2, 0, 2, 21102, 1162, 1, 0, 2106, 0, -3, 21201, -2, 1, -2, 1105, 1, 1136, 109, -7, 2105, 1, 0, 109, 6, 1201, -5, 0, 1182, 20102, 1, 0, -2, 21101, 0, 0, -3, 21201, -5, 1, -5, 22208, -3, -2, -1, 1205, -1, 1229, 2201, -5, -3, 1205, 20102, 1, 0, 1, 21202, -3, 1, 2, 22102, 1, -2, 3, 21101, 0, 1222, 0, 2105, 1, -4, 21201, -3, 1, -3, 1106, 0, 1192, 109, -6, 2105, 1, 0, 109, 2, 22101, 0, -1, 1, 21101, 0, 1256, 2, 21101, 1251, 0, 0, 1106, 0, 1174, 109, -2, 2105, 1, 0, 109, 5, 22201, -4, -3, -1, 22201, -2, -1, -1, 204, -1, 109, -5, 2106, 0, 0, 109, 3, 2101, 0, -2, 1280, 1006, 0, 1303, 104, 45, 104, 32, 1201, -1, 66, 1291, 21002, 0, 1, 1, 21101, 0, 1301, 0, 1106, 0, 1234, 104, 10, 109, -3, 2105, 1, 0, 0, 0, 109, 2, 1201, -1, 0, 1309, 1101, 0, 0, 1308, 21101, 4601, 0, 1, 21102, 1, 13, 2, 21102, 4, 1, 3, 21101, 0, 1353, 4, 21101, 1343, 0, 0, 1106, 0, 1130, 21001, 1308, 0, -1, 109, -2, 2105, 1, 0, 70, 109, 3, 2101, 0, -2, 1360, 20008, 0, 1309, -1, 1206, -1, 1419, 1005, 1308, 1398, 1101, 0, 1, 1308, 21008, 1309, -1, -1, 1206, -1, 1387, 21102, 106, 1, 1, 1106, 0, 1391, 21102, 92, 1, 1, 21102, 1, 1398, 0, 1105, 1, 1234, 104, 45, 104, 32, 1201, -2, 1, 1408, 20101, 0, 0, 1, 21102, 1, 1417, 0, 1105, 1, 1234, 104, 10, 109, -3, 2106, 0, 0, 109, 3, 2102, 1, -2, 1128, 21102, 34, 1, 1, 21101, 1441, 0, 0, 1105, 1, 1234, 1001, 1128, 0, 1447, 20101, 0, 0, 1, 21102, 1, 1456, 0, 1106, 0, 1234, 21101, 41, 0, 1, 21102, 1, 1467, 0, 1105, 1, 1234, 1001, 1128, 1, 1473, 20102, 1, 0, 1, 21101, 1482, 0, 0, 1106, 0, 1234, 21102, 1, 46, 1, 21101, 1493, 0, 0, 1105, 1, 1234, 21001, 1128, 3, 1, 21102, 4, 1, 2, 21102, 1, 1, 3, 21102, 1273, 1, 4, 21101, 0, 1516, 0, 1105, 1, 1130, 21002, 1128, 1, 1, 21102, 1, 1527, 0, 1105, 1, 1310, 1001, 1128, 2, 1532, 21001, 0, 0, -1, 1206, -1, 1545, 21102, 1545, 1, 0, 2105, 1, -1, 109, -3, 2105, 1, 0, 109, 0, 99, 109, 2, 1101, 0, 0, 1550, 21102, 4601, 1, 1, 21102, 1, 13, 2, 21102, 1, 4, 3, 21102, 1664, 1, 4, 21102, 1, 1582, 0, 1105, 1, 1130, 2, 2486, 1352, 1551, 1101, 0, 0, 1552, 21001, 1550, 0, 1, 21101, 0, 33, 2, 21102, 1, 1702, 3, 21102, 1, 1609, 0, 1105, 1, 2722, 21007, 1552, 0, -1, 1205, -1, 1630, 20107, 0, 1552, -1, 1205, -1, 1637, 21101, 0, 1630, 0, 1106, 0, 1752, 21101, 0, 548, 1, 1105, 1, 1641, 21102, 687, 1, 1, 21102, 1648, 1, 0, 1106, 0, 1234, 21102, 1, 4457, 1, 21102, 1, 1659, 0, 1106, 0, 1424, 109, -2, 2106, 0, 0, 109, 4, 21202, -2, -1, -2, 1201, -3, 0, 1675, 21008, 0, -1, -1, 1206, -1, 1697, 1201, -3, 2, 1687, 20101, -27, 0, -3, 22201, -3, -2, -3, 2001, 1550, -3, 1550, 109, -4, 2106, 0, 0, 109, 5, 21008, 1552, 0, -1, 1206, -1, 1747, 1201, -3, 1901, 1716, 21001, 0, 0, -2, 1205, -4, 1736, 20207, -2, 1551, -1, 1205, -1, 1747, 1102, -1, 1, 1552, 1106, 0, 1747, 22007, 1551, -2, -1, 1205, -1, 1747, 1101, 0, 1, 1552, 109, -5, 2106, 0, 0, 109, 1, 21102, 826, 1, 1, 21101, 1765, 0, 0, 1105, 1, 1234, 20102, 1, 1550, 1, 21101, 1776, 0, 0, 1105, 1, 2863, 21101, 1090, 0, 1, 21102, 1, 1787, 0, 1106, 0, 1234, 99, 1105, 1, 1787, 109, -1, 2106, 0, 0, 109, 1, 21102, 1, 512, 1, 21101, 1809, 0, 0, 1106, 0, 1234, 99, 1105, 1, 1809, 109, -1, 2106, 0, 0, 109, 1, 1102, 1, 1, 1129, 109, -1, 2105, 1, 0, 109, 1, 21102, 1, 377, 1, 21102, 1, 1842, 0, 1105, 1, 1234, 1106, 0, 1831, 109, -1, 2105, 1, 0, 109, 1, 21101, 0, 407, 1, 21101, 0, 1863, 0, 1106, 0, 1234, 99, 1106, 0, 1863, 109, -1, 2106, 0, 0, 109, 1, 21102, 1, 452, 1, 21101, 0, 1885, 0, 1106, 0, 1234, 99, 1105, 1, 1885, 109, -1, 2105, 1, 0, 1941, 1947, 1953, 1958, 1965, 1972, 1978, 3584, 4102, 4099, 3470, 4223, 3883, 4100, 3983, 4146, 4026, 3610, 3464, 3599, 3502, 3738, 3509, 4167, 3991, 3449, 3751, 3564, 3734, 4060, 3697, 3805, 4201, 4057, 3543, 3545, 3992, 3674, 4039, 3751, 2281, 2468, 2418, 2450, 2487, 2125, 2505, 5, 95, 108, 104, 104, 23, 5, 96, 91, 108, 108, 1, 4, 101, 105, 112, 3, 6, 104, 104, 106, 107, 94, -1, 6, 109, 104, 109, 107, 94, -1, 5, 111, 91, 100, 93, 23, 5, 114, 95, 108, 108, 1, 109, 3, 21102, 1, 1993, 0, 1106, 0, 2634, 1006, 1129, 2010, 21101, 0, 316, 1, 21101, 2007, 0, 0, 1105, 1, 1234, 1106, 0, 2076, 21101, 0, 0, -1, 1201, -1, 1894, 2020, 20102, 1, 0, 1, 21102, 0, 1, 2, 21101, 0, 0, 3, 21102, 2037, 1, 0, 1106, 0, 2525, 1206, 1, 2054, 1201, -1, 1934, 2050, 21102, 1, 2051, 0, 105, 1, 0, 1106, 0, 2076, 21201, -1, 1, -1, 21207, -1, 7, -2, 1205, -2, 2014, 21102, 177, 1, 1, 21101, 0, 2076, 0, 1105, 1, 1234, 109, -3, 2105, 1, 0, 109, 3, 2001, 1128, -2, 2089, 20102, 1, 0, -1, 1205, -1, 2108, 21102, 1, 201, 1, 21102, 2105, 1, 0, 1106, 0, 1234, 1105, 1, 2119, 22102, 1, -1, 1, 21102, 2119, 1, 0, 1106, 0, 1424, 109, -3, 2106, 0, 0, 0, 109, 1, 1101, 0, 0, 2124, 21102, 4601, 1, 1, 21101, 13, 0, 2, 21102, 1, 4, 3, 21101, 2173, 0, 4, 21101, 2154, 0, 0, 1106, 0, 1130, 1005, 2124, 2168, 21102, 1, 226, 1, 21102, 2168, 1, 0, 1106, 0, 1234, 109, -1, 2106, 0, 0, 109, 3, 1005, 2124, 2275, 1201, -2, 0, 2183, 20008, 0, 1128, -1, 1206, -1, 2275, 1201, -2, 1, 2194, 21001, 0, 0, -1, 21201, -1, 0, 1, 21102, 5, 1, 2, 21102, 1, 1, 3, 21102, 1, 2216, 0, 1105, 1, 2525, 1206, 1, 2275, 21101, 258, 0, 1, 21101, 0, 2230, 0, 1105, 1, 1234, 21201, -1, 0, 1, 21101, 0, 2241, 0, 1105, 1, 1234, 104, 46, 104, 10, 1102, 1, 1, 2124, 1201, -2, 0, 2256, 1102, -1, 1, 0, 1201, -2, 3, 2262, 21002, 0, 1, -1, 1206, -1, 2275, 21101, 2275, 0, 0, 2105, 1, -1, 109, -3, 2106, 0, 0, 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76, 69, 70, 0, 66, 80, 66, 61, 72, 11, 98, 99, 95, 102, 86, 94, 15, 90, 78, 98, 76, 19, 84, 85, 76, 88, 93, 8, 76, 82, 74, 71, 87, 84, 80, 77, 64, 69, 75, 65, 79, 7, 105, 96, 102, 106, 100, 98, 102, 7, 91, 103, 108, 98, 89, 89, 101, 7, 90, 102, 107, 91, 99, 98, 84, 13, 92, 96, 87, 89, 93, 87, 97, 81, 11, 86, 88, 87, 87, 4, 111, 92, 104, 93, 5, 104, 105, 110, 107, 92}
+}
diff --git a/2019/day25/map.txt b/2019/day25/map.txt
new file mode 100644
index 0000000..c4ba499
--- /dev/null
+++ b/2019/day25/map.txt
@@ -0,0 +1,122 @@
+          9 5-6
+          | | |
+          8-4 7
+            |
+          1 |
+          | |
+          0-3
+          | |
+          2 |
+            |
+        C-B-A
+          | |
+          D E
+          |
+          F
+          |
+        H-G
+        |
+        I
+        |
+        *
+
+0: Hull Breach            ()
+1: Hallway                (giant electromagnet -> prevents movement)
+2: Science Lab            (astronaut ice cream)
+3: Passages               (mouse)
+4: Arcade                 (spool of cat6)
+5: Engineering            (hypercube)
+6: Crew Quarters          (sand)
+7: Navigation             (antenna)
+8: Observatory            ()
+9: Stables                (infinite loop -> Locks up game)
+A: Warp Drive Maintenance (mutex)
+B: Gift Wrapping Center   (boulder)
+C: Sick Bay               ()
+D: Holodeck               (escape pod -> Launched into Space -> Exit)
+E: Kitchen                ()
+F: Hot Chocolate Fountain (photons -> Eaten by a Grue)
+G: Corridor               (molten lava)
+H: Storage                ()
+I: Security Checkpoint    ()
+*: GOAL!
+
+# All Items:
+astronaut ice cream
+mouse
+spool of cat6
+hypercube
+sand
+antenna
+mutex
+boulder
+
+# Entry Attempts:
+* 1: Too Light
+  astronaut ice cream
+  mouse
+  mutex
+  boulder
+
+* 2: Too Heavy
+  astronaut ice cream
+  mouse
+  spool of cat6
+  hypercube
+  sand
+  antenna
+  mutex
+  boulder
+
+* 3: Too Heavy 
+  astronaut ice cream
+  mouse
+  spool of cat6
+  hypercube
+  sand
+  antenna
+
+* 4: Too Heavy
+  astronaut ice cream
+  mouse
+  spool of cat6
+  hypercube
+  sand
+
+* 5: Too Light
+  astronaut ice cream
+  mouse
+  spool of cat6
+  hypercube
+
+* 6: Too Heavy
+  astronaut ice cream
+  mouse
+  spool of cat6
+  sand
+
+* 7: Too Light
+  astronaut ice cream
+  mouse
+  spool of cat6
+  hypercube
+
+* 8: Too Heavy
+  astronaut ice cream
+  mouse
+  spool of cat6
+  hypercube
+  antenna
+
+* 9: Too Heavy
+  mutex
+  mouse
+  spool of cat6
+  hypercube
+  antenna
+
+* 10: Too Heavy
+  astronaut ice cream
+  mouse
+  spool of cat6
+  antenna
diff --git a/2019/day25/saveslot-quick.sav b/2019/day25/saveslot-quick.sav
new file mode 100644
index 0000000..2e77dec
--- /dev/null
+++ b/2019/day25/saveslot-quick.sav
@@ -0,0 +1 @@
+{"Title":"Day 25: 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sand","take antenna","take boulder","take mutex","south","north","drop astronaut ice cream","drop mouse","drop spool of cat6","drop hypercube"],"Proposals":null,"Buffer":"","Cursor":0,"Complete":false},"TheLog":["","","== Hull Breach ==","You got in through a hole in the floor here. To keep your ship from also freezing, the hole has been sealed.","","Doors here lead:","- north","- east","- south","","Command?","south","","","","== Science Lab ==","You see evidence here of prototype polymer design work.","","Doors here lead:","- north","","Items here:","- astronaut ice cream","","Command?","take astronaut ice cream","","You take the astronaut ice cream.","","Command?","north","","","","== Hull Breach ==","You got in through a hole in the floor here. To keep your ship from also freezing, the hole has been sealed.","","Doors here lead:","- north","- east","- south","","Command?","east","","","","== Passages ==","They're a little twisty and starting to look all alike.","","Doors here lead:","- north","- south","- west","","Items here:","- mouse","","Command?","take mouse","","You take the mouse.","","Command?","north","","","","== Arcade ==","None of the cabinets seem to have power.","","Doors here lead:","- north","- south","- west","","Items here:","- spool of cat6","","Command?","take spool of cat6","","You take the spool of cat6.","","Command?","north","","","","== Engineering ==","You see a whiteboard with plans for Springdroid v2.","","Doors here lead:","- east","- south","","Items here:","- hypercube","","Command?","take hypercube","","You take the hypercube.","","Command?","east","","","","== Crew Quarters ==","The beds are all too small for you.","","Doors here lead:","- south","- west","","Items here:","- sand","","Command?","take sand","","You take the sand.","","Command?","south","","","","== Navigation ==","Status: Stranded. Please supply measurements from fifty stars to recalibrate.","","Doors here lead:","- north","","Items here:","- antenna","","Command?","take antenna","","You take the antenna.","","Command?","north","","","","== Crew Quarters ==","The beds are all too small for you.","","Doors here lead:","- south","- west","","Command?","west","","","","== Engineering ==","You see a whiteboard with plans for Springdroid v2.","","Doors here lead:","- east","- south","","Command?","south","","","","== Arcade ==","None of the cabinets seem to have power.","","Doors here lead:","- north","- south","- west","","Command?","south","","","","== Passages ==","They're a little twisty and starting to look all alike.","","Doors here lead:","- north","- south","- west","","Command?","south","","","","== Warp Drive Maintenance ==","It appears to be working normally.","","Doors here lead:","- north","- south","- west","","Items here:","- mutex","","Command?","take mutex","","You take the mutex.","","Command?","west","","","","== Gift Wrapping Center ==","How else do you wrap presents on the go?","","Doors here lead:","- east","- south","- west","","Items here:","- boulder","","Command?","take boulder","","You take the boulder.","","Command?","south","","","","== Holodeck ==","Someone seems to have left it on the Giant Grid setting.","","Doors here lead:","- north","- south","","Items here:","- escape pod","","Command?","south","","","","== Hot Chocolate Fountain ==","Somehow, it's still working.","","Doors here lead:","- north","- south","","Items here:","- photons","","Command?","south","","","","== Corridor ==","The metal walls and the metal floor are slightly different colors. Or are they?","","Doors here lead:","- north","- west","","Items here:","- molten lava","","Command?","west","","","","== Storage ==","The boxes just contain more boxes.  Recursively.","","Doors here lead:","- east","- south","","Command?","south","","","","== Security Checkpoint ==","In the next room, a pressure-sensitive floor will verify your identity.","","Doors here lead:","- north","- south","","Command?","drop boulder","","You drop the boulder.","","Command?","drop mutex","","You drop the mutex.","","Command?","drop antenna","","You drop the antenna.","","Command?","drop sand","","You drop the sand.","","Command?","","Quick Loaded","Unrecognized command.","","Command?","south","","","","== Pressure-Sensitive Floor ==","Analyzing...","","Doors here lead:","- north","","A loud, robotic voice says \"Alert! Droids on this ship are heavier than the detected value!\" and you are ejected back to the checkpoint.","","","","== Security Checkpoint ==","In the next room, a pressure-sensitive floor will verify your identity.","","Doors here lead:","- north","- south","","Items here:","- mutex","- boulder","- antenna","- sand","","Command?",""],"LogStartIdx":0,"LogDisplayLines":19,"StatusText":"Receiving '\n'","StatusSpinner":8,"Inventory":["astronaut ice cream","mouse","spool of cat6","hypercube"]}
diff --git a/2019/day25/screen.go b/2019/day25/screen.go
new file mode 100644
index 0000000..0d347f6
--- /dev/null
+++ b/2019/day25/screen.go
@@ -0,0 +1,404 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	intcode "git.bullercodeworks.com/brian/adventofcode/2019/intcode-processor"
+	termboxScreen "github.com/br0xen/termbox-screen"
+	termboxUtil "github.com/br0xen/termbox-util"
+	"github.com/nsf/termbox-go"
+)
+
+const (
+	ModeWaiting = iota
+	ModeInput
+)
+
+const (
+	Bg = termbox.ColorBlack
+	Fg = termbox.ColorGreen
+)
+
+var spinner []rune
+
+type Screen struct {
+	Title   string
+	Program *intcode.Program
+	LastPI  int
+	Mode    int
+	Events  *EventBuffer
+	Cli     *CliProc
+
+	TheLog          []string
+	LogStartIdx     int
+	LogDisplayLines int
+
+	StatusText    string
+	StatusSpinner int
+
+	Inventory []string
+
+	id int
+}
+
+func NewScreen(p *intcode.Program) *Screen {
+	s := Screen{
+		Title:         "Day 25: Cryostasis",
+		Program:       p,
+		Mode:          ModeWaiting,
+		Events:        NewEventBuffer(),
+		Cli:           NewCLI(),
+		StatusSpinner: 0,
+	}
+	spinner = []rune{'▁', '▂', '▃', '▄', '▅', '▆', '▇', '█', '▇', '▆', '▅', '▄', '▃', '▁'}
+
+	// Process to update screen from program
+	go func() {
+		for {
+			if p.WaitingForInput || p.State == intcode.RET_DONE {
+				if !s.Cli.Complete {
+					s.Mode = ModeInput
+				} else {
+					s.Mode = ModeWaiting
+					inp := s.Cli.GetBuffer()
+					s.Cli.ClearBuffer()
+					if s.IsEngineCommand(inp) {
+						if err := s.ProcessCommand(inp); err != nil {
+							s.Logln("Engine Error: " + err.Error())
+						}
+						continue
+					}
+					for k := range inp {
+						for !p.WaitingForInput {
+							time.Sleep(1)
+						}
+						s.StatusText = "Transmitting " + inp[0:k]
+						s.Log(string(inp[k]))
+						s.Program.Input(int(inp[k]))
+					}
+					s.StatusText = "Please Wait..."
+					s.Program.Input(int('\n'))
+					s.Logln("")
+					if strings.HasPrefix(inp, "take ") {
+						s.Cli.RemoveSuggestion(inp)
+						invAdd := strings.TrimPrefix(inp, "take ")
+						s.Inventory = append(s.Inventory, invAdd)
+					} else if strings.HasPrefix(inp, "drop ") {
+						invRem := strings.TrimPrefix(inp, "drop ")
+						for i := range s.Inventory {
+							if s.Inventory[i] == invRem {
+								s.Inventory = append(s.Inventory[:i], s.Inventory[i+1:]...)
+								break
+							}
+						}
+					}
+				}
+			}
+			if p.WaitingForOutput {
+				v := s.Program.Output()
+				s.StatusText = "Receiving '" + string(v) + "'"
+				if v == '\n' {
+					s.Logln("")
+				} else {
+					s.Log(string(v))
+				}
+			}
+		}
+	}()
+
+	// And actually run the program
+	s.Logln("Welcome to the Day25 Cryostasis Engine!")
+	s.Logln("Type '/start' to start")
+	s.Logln("Type '/load <save>' to load a save")
+	go func() {
+		ret := p.Run()
+		if ret == intcode.RET_DONE {
+			s.Logln("Program is done")
+		} else if ret == intcode.RET_ERR {
+			s.Logln("Program errored")
+		}
+		s.Logln("Type '/quit' to quit")
+	}()
+	return &s
+}
+
+func (s *Screen) Id() int { return s.id }
+
+func (s *Screen) Initialize(bundle termboxScreen.Bundle) error {
+	s.Events.Clear()
+	s.TheLog = nil
+	return nil
+}
+
+func (s *Screen) HandleNoneEvent(event termbox.Event) int {
+	// Update the display
+	return s.Id()
+}
+
+func (s *Screen) HandleKeyEvent(event termbox.Event) int {
+	switch event.Key {
+	case termbox.KeyF5:
+		if err := s.SaveState("quick"); err != nil {
+			s.Logln("Engine Error: " + err.Error())
+		} else {
+			s.Logln("Quick Saved")
+		}
+	case termbox.KeyF7:
+		if err := s.LoadState("quick"); err != nil {
+			s.Logln("Engine Error: " + err.Error())
+		} else {
+			s.Logln("Quick Loaded")
+		}
+	case termbox.KeyPgup, termbox.KeyCtrlB:
+		// Page down the log
+		wrkLog := s.GetWrappedLog()
+		if s.LogStartIdx < len(wrkLog)-s.LogDisplayLines {
+			s.LogStartIdx = s.LogStartIdx + s.LogDisplayLines
+		}
+		if s.LogStartIdx > len(wrkLog)-s.LogDisplayLines {
+			s.LogStartIdx = len(wrkLog) - s.LogDisplayLines
+		}
+
+	case termbox.KeyPgdn, termbox.KeyCtrlF:
+		// Page up the log
+		if s.LogStartIdx > 0 {
+			s.LogStartIdx = s.LogStartIdx - s.LogDisplayLines
+		}
+		if s.LogStartIdx < 0 {
+			s.LogStartIdx = 0
+		}
+	default:
+		if s.Mode == ModeInput {
+			err := s.Cli.handleEvent(event)
+			if err != nil {
+				s.Log(err.Error())
+			}
+		}
+	}
+	return s.Id()
+}
+
+// ╭╼╾╮
+// │┼━│
+// ├┴┬┤
+// ╰──╯
+func (s *Screen) DrawScreen() {
+	s.DrawHeader()
+	s.DrawLog()
+	s.DrawInventory()
+	s.DrawTerminal()
+}
+
+func (s *Screen) DrawLog() {
+	w, h := termbox.Size()
+	y := 1
+	logW := w - 2
+	h = h - 4
+	s.LogDisplayLines = h - 1
+
+	wrkLog := s.GetWrappedLog()
+	currStart := len(wrkLog) - s.LogDisplayLines - s.LogStartIdx
+	if currStart < 0 {
+		currStart = 0
+	}
+	statusStart := (len(wrkLog) - s.LogDisplayLines - currStart)
+	if statusStart < 0 {
+		statusStart = 0
+	}
+	logStatus := fmt.Sprintf("%d/%d (%d:%d)", statusStart, len(wrkLog), s.LogStartIdx, currStart)
+	_, nY := termboxUtil.DrawStringAtPoint("╭"+logStatus+strings.Repeat("─", (logW-1-(len(logStatus))))+"╮", 1, y, Fg, Bg)
+
+	for len(wrkLog) < s.LogDisplayLines {
+		wrkLog = append([]string{"~"}, wrkLog...)
+	}
+	for k := currStart; k < len(wrkLog) && k < currStart+s.LogDisplayLines; k++ {
+		nY = nY + 1
+		v := "~"
+		if k >= 0 {
+			v = wrkLog[k]
+		}
+		if len(v) > logW-4 {
+			v = v[:logW-4]
+		} else if len(v) < logW-4 {
+			v = termboxUtil.AlignTextWithFill(v, logW-4, termboxUtil.AlignLeft, ' ')
+		}
+		_, nY = termboxUtil.DrawStringAtPoint(v, 2, nY, Fg, Bg)
+		termbox.SetCell(1, nY, '│', Fg, Bg)
+		termbox.SetCell((w - 1), nY, '│', Fg, Bg)
+	}
+
+	termboxUtil.DrawStringAtPoint("├"+strings.Repeat("─", (logW-1))+"┤", 1, nY+1, Fg, Bg)
+}
+
+func (s *Screen) DrawInventory() {
+	w, _ := termbox.Size()
+	title := "Inventory"
+	longest := len(title)
+	for k := range s.Inventory {
+		if len(s.Inventory[k]) > longest {
+			longest = len(s.Inventory[k])
+		}
+	}
+	title = "┬" + title + strings.Repeat("─", longest-len(title)) + "╮"
+	termboxUtil.DrawStringAtPoint(title, w-(longest+2), 1, Fg, Bg)
+	for k := range s.Inventory {
+		termboxUtil.DrawStringAtPoint(s.Inventory[k], w-(longest+1), 2+k, Fg, Bg)
+		termbox.SetCell((w - longest - 2), 2+k, '│', Fg, Bg)
+		termbox.SetCell((w - 1), 2+k, '│', Fg, Bg)
+	}
+
+	termboxUtil.DrawStringAtPoint("╰"+strings.Repeat("─", len(title)-6)+"┤", w-(longest+2), 2+len(s.Inventory), Fg, Bg)
+}
+
+func (s *Screen) DrawTerminal() {
+	w, h := termbox.Size()
+	termbox.SetCell(1, h-2, '│', Fg, Bg)
+	termbox.SetCell((w - 1), h-2, '│', Fg, Bg)
+	if s.Mode == ModeInput && !s.Cli.Complete {
+		s.Cli.Draw(2, h-3, Fg, Bg)
+	} else {
+		s.DrawStatusLine()
+	}
+	termboxUtil.DrawStringAtPoint("╰"+strings.Repeat("─", (w-3))+"╯", 1, h-1, Fg, Bg)
+}
+
+func (s *Screen) DrawStatusLine() {
+	_, h := termbox.Size()
+	if s.Program.Ptr != s.LastPI {
+		s.StatusSpinner = (s.StatusSpinner + 1) % len(spinner)
+		s.LastPI = s.Program.Ptr
+	}
+	status := string(spinner[s.StatusSpinner]) + " " + strconv.Itoa(s.LastPI)
+	for len(status) < 10 {
+		status = status + " "
+	}
+	termboxUtil.DrawStringAtPoint(status+" - "+s.StatusText, 2, h-2, Fg, Bg)
+}
+
+func (s *Screen) DrawHeader() {
+	width, _ := termbox.Size()
+	spaces := strings.Repeat(" ", ((width-len(s.Title))/2)+1)
+	termboxUtil.DrawStringAtPoint(fmt.Sprintf("%s%s%s", spaces, s.Title, spaces), 0, 0, Bg, Fg)
+}
+
+func (s *Screen) ResizeScreen() {
+	s.Initialize(nil)
+}
+
+func (s *Screen) GetWrappedLog() []string {
+	w, _ := termbox.Size()
+	var wrkLog []string
+	for _, v := range s.TheLog {
+		var line string
+		pts := strings.Fields(v)
+		for k := range pts {
+			if len(line) == 0 {
+				line = pts[k]
+			} else {
+				if len(line+" "+pts[k]) < w-4 {
+					line = line + " " + pts[k]
+				} else {
+					wrkLog = append(wrkLog, line)
+					line = pts[k]
+				}
+			}
+		}
+		wrkLog = append(wrkLog, line)
+	}
+	return wrkLog
+}
+
+func (s *Screen) Logln(msg string) {
+	s.TheLog = append(s.TheLog, msg)
+}
+func (s *Screen) Log(msg string) {
+	last := s.TheLog[len(s.TheLog)-1]
+	last = last + msg
+	s.TheLog[len(s.TheLog)-1] = last
+	if last == "Command?" {
+		s.ParseLogForCommands()
+	}
+}
+
+func (s *Screen) ParseLogForCommands() {
+	// First fine the _previous_ 'Command?'
+	s.Cli.ClearSuggestions()
+	for k := len(s.TheLog) - 1; k >= 0; k-- {
+		if strings.HasPrefix(s.TheLog[k], "== ") {
+			// Room start
+			break
+		}
+		if strings.HasPrefix(s.TheLog[k], "- ") {
+			val := strings.TrimPrefix(s.TheLog[k], "- ")
+			switch val {
+			case "north", "east", "south", "west":
+				s.Cli.AddSuggestion(val)
+			default:
+				var have bool
+				for _, v := range s.Inventory {
+					if v == val {
+						have = true
+						break
+					}
+				}
+				if !have {
+					s.Cli.AddSuggestion("take " + val)
+				}
+			}
+		}
+	}
+	for _, v := range s.Inventory {
+		s.Cli.AddSuggestions([]string{"drop " + v})
+	}
+}
+
+func (s *Screen) IsEngineCommand(inp string) bool {
+	return inp == "/quit" || strings.HasPrefix(inp, "/save") || strings.HasPrefix(inp, "/load")
+}
+func (s *Screen) ProcessCommand(inp string) error {
+	if inp == "/quit" {
+		s.id = -1
+	} else if strings.HasPrefix(inp, "/save ") {
+		pts := strings.Split(inp, " ")
+		if len(pts) == 2 {
+			return s.SaveState(pts[1])
+		}
+		return errors.New("No filename given")
+	} else if strings.HasPrefix(inp, "/load ") {
+		pts := strings.Split(inp, " ")
+		if len(pts) == 2 {
+			return s.LoadState(pts[1])
+		}
+		return errors.New("No filename given")
+	}
+	return nil
+}
+
+func (s *Screen) SaveState(slot string) error {
+	// Save the engine state first
+	f, err := os.OpenFile("saveslot-"+slot+".sav", os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	enc := json.NewEncoder(f)
+	enc.Encode(s)
+	return nil
+}
+
+func (s *Screen) LoadState(slot string) error {
+	hold, err := ioutil.ReadFile("saveslot-" + slot + ".sav")
+	if err != nil {
+		return err
+	}
+	json.NewDecoder(bytes.NewBuffer(hold)).Decode(&s)
+	return nil
+}
diff --git a/2019/day25/util.go b/2019/day25/util.go
new file mode 100644
index 0000000..c8856f3
--- /dev/null
+++ b/2019/day25/util.go
@@ -0,0 +1,33 @@
+package main
+
+import (
+	"strings"
+
+	termboxUtil "github.com/br0xen/termbox-util"
+	"github.com/nsf/termbox-go"
+)
+
+// Some characters for display
+const (
+	ChUpKeyValue    = '↑'
+	ChRightKeyValue = '→'
+	ChDownKeyValue  = '↓'
+	ChLeftKeyValue  = '←'
+	ChEnterKeyValue = '⏎'
+	ChCursor        = '┇'
+)
+
+func DrawString(v string, x, y int, fg, bg termbox.Attribute) (int, int) {
+	termboxUtil.DrawStringAtPoint(v, x, y, fg, bg)
+	return (x + len(v)), (y + 1)
+}
+
+func FilterStrings(h []string, n string) []string {
+	var ret []string
+	for _, v := range h {
+		if strings.HasPrefix(v, n) {
+			ret = append(ret, v)
+		}
+	}
+	return ret
+}
diff --git a/2019/intcode-processor/opt_proc.go b/2019/intcode-processor/opt_proc.go
new file mode 100644
index 0000000..8888496
--- /dev/null
+++ b/2019/intcode-processor/opt_proc.go
@@ -0,0 +1,118 @@
+package intcodeprocessor
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+)
+
+type OptProc struct {
+	OriginalCode []int
+	Code         []int
+	Ptr          int
+	RelBase      int
+
+	State int
+	Error error
+
+	Pause            bool
+	Bail             bool
+	WaitingForInput  bool
+	WaitingForOutput bool
+
+	Debug       bool
+	DebugToFile bool
+}
+
+func NewOptProc(prog []int) *OptProc {
+	p := new(OptProc)
+	p.State = RET_OK
+	p.OriginalCode = make([]int, len(prog))
+	max := math.MaxInt16
+	if 2*len(prog) > max {
+		max = 2 * len(prog)
+	}
+	p.Code = make([]int, max)
+	copy(p.OriginalCode, prog)
+	return p
+}
+
+func (p *OptProc) Run(in <-chan int, out chan<- int) int {
+	p.Ptr = 0
+	p.RelBase = 0
+	copy(p.Code, p.OriginalCode)
+
+	for p.State == RET_OK {
+		ins := fmt.Sprintf("%05d", p.Code[p.Ptr])
+		opcode, _ := strconv.Atoi(ins[3:])
+		arg := func(i int) int {
+			switch ins[3-i] {
+			case '1': // Immediate mode
+				return p.Ptr + i
+			case '2': // Relative mode
+				return p.RelBase + p.Code[p.Ptr+i]
+			default: // 1, position mode
+				return p.Code[p.Ptr+i]
+			}
+		}
+		switch opcode {
+		case OP_ADD:
+			p.Code[arg(3)] = p.Code[arg(1)] + p.Code[arg(2)]
+			p.Ptr = p.Ptr + 4
+		case OP_MLT:
+			p.Code[arg(3)] = p.Code[arg(1)] * p.Code[arg(2)]
+			p.Ptr += 4
+		case OP_INP:
+			p.WaitingForInput = true
+			v := <-in
+			p.WaitingForInput = false
+			p.Code[arg(1)] = v
+			p.Ptr += 2
+
+		case OP_OUT:
+			p.WaitingForOutput = true
+			out <- p.Code[arg(1)]
+			p.WaitingForOutput = false
+			p.Ptr += 2
+
+		case OP_JIT:
+			if p.Code[arg(1)] != 0 {
+				p.Ptr = p.Code[arg(2)]
+			} else {
+				p.Ptr += 3
+			}
+		case OP_JIF:
+			if p.Code[arg(1)] == 0 {
+				p.Ptr = p.Code[arg(2)]
+			} else {
+				p.Ptr += 3
+			}
+		case OP_ILT:
+			if p.Code[arg(1)] < p.Code[arg(2)] {
+				p.Code[arg(3)] = 1
+			} else {
+				p.Code[arg(3)] = 0
+			}
+			p.Ptr += 4
+		case OP_IEQ:
+			if p.Code[arg(1)] == p.Code[arg(2)] {
+				p.Code[arg(3)] = 1
+			} else {
+				p.Code[arg(3)] = 0
+			}
+			p.Ptr += 4
+		case OP_RBS:
+			p.RelBase += p.Code[arg(1)]
+			p.Ptr += 2
+		case OP_EXT:
+			p.State = RET_DONE
+		default:
+			p.State = RET_ERR
+		}
+	}
+	return p.State
+}
+
+func (p *OptProc) IsStopped() bool {
+	return p.State != RET_OK
+}
diff --git a/2019/intcode-processor/processor.go b/2019/intcode-processor/processor.go
index dd3520b..74f9192 100644
--- a/2019/intcode-processor/processor.go
+++ b/2019/intcode-processor/processor.go
@@ -1,12 +1,15 @@
 package intcodeprocessor
 
 import (
+	"bytes"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"io/ioutil"
 	"math"
 	"os"
 	"strings"
+	"time"
 
 	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
 )
@@ -37,21 +40,23 @@ const (
 )
 
 type Program struct {
-	originalCode []int
-	code         []int
-	ptr          int
-	relBase      int
+	OriginalCode []int
+	Code         []int
+	Ptr          int
+	RelBase      int
 
-	state int
-	error error
+	State int
+	Error error
 
-	bail             bool
-	waitingForInput  bool
-	input            chan int
-	waitingForOutput bool
-	output           chan int
+	Pause            bool
+	Bail             bool
+	WaitingForInput  bool
+	InputChan        chan int
+	WaitingForOutput bool
+	OutputChan       chan int
 
-	debug bool
+	Debug       bool
+	DebugToFile bool
 }
 
 func ReadIntCodeFile(fn string) []int {
@@ -70,157 +75,180 @@ func ReadIntCodeFile(fn string) []int {
 
 func NewProgram(prog []int) *Program {
 	p := new(Program)
-	p.originalCode = make([]int, len(prog))
-	p.code = make([]int, len(prog))
-	copy(p.originalCode, prog)
+	p.OriginalCode = make([]int, len(prog))
+	p.Code = make([]int, len(prog))
+	copy(p.OriginalCode, prog)
 	p.Reset()
 	return p
 }
 
-func (p *Program) EnableDebug() {
-	p.debug = true
+func (p *Program) SaveState(slot string) error {
+	f, err := os.OpenFile("saveslot-"+slot+".sav", os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	enc := json.NewEncoder(f)
+	enc.Encode(p)
+	return nil
 }
 
-func (p *Program) DisableDebug() {
-	p.debug = false
+func (p *Program) LoadState(slot string) error {
+	hold, err := ioutil.ReadFile("saveslot-" + slot + ".sav")
+	if err != nil {
+		return err
+	}
+	json.NewDecoder(bytes.NewBuffer(hold)).Decode(&p)
+	return nil
+}
+
+func (p *Program) Pointer() int {
+	return p.Ptr
 }
 
 func (p *Program) DebugLog(l string) {
-	if p.debug {
+	if p.Debug {
 		fmt.Print(l)
 	}
 }
 
+func (p *Program) OutputToFile(l string) {
+	f, err := os.OpenFile("debug-log", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	defer f.Close()
+	_, err = fmt.Fprintln(f, l)
+}
+
 func (p *Program) Reset() {
-	copy(p.code, p.originalCode)
-	p.ptr = 0
-	p.state = RET_OK
-	p.error = nil
-	p.waitingForInput = false
-	p.waitingForOutput = false
-	p.input = make(chan int)
-	p.output = make(chan int)
-	p.relBase = 0
-}
-
-func (p *Program) GetCode() []int {
-	return p.code
-}
-
-func (p *Program) State() int {
-	return p.state
-}
-
-func (p *Program) Error() error {
-	return p.error
+	copy(p.Code, p.OriginalCode)
+	p.Ptr = 0
+	p.State = RET_OK
+	p.Error = nil
+	p.Pause = false
+	p.WaitingForInput = false
+	p.WaitingForOutput = false
+	p.InputChan = make(chan int)
+	p.OutputChan = make(chan int)
+	p.RelBase = 0
 }
 
 func (p *Program) ForceQuit() {
-	p.bail = true
-	close(p.input)
-	close(p.output)
+	p.Bail = true
+	close(p.InputChan)
+	close(p.OutputChan)
 }
 
 func (p *Program) Run() int {
 	for {
-		p.state = p.Step()
-		if p.state != RET_OK {
-			return p.state
+		p.State = p.Step()
+		if p.State != RET_OK {
+			return p.State
 		}
 	}
 }
 
 func (p *Program) Step() int {
-	if p.bail {
-		p.error = errors.New("Force Quit")
+	for p.Pause {
+		time.Sleep(1)
+	}
+	if p.Bail {
+		p.Error = errors.New("Force Quit")
 		return RET_ERR
 	}
-	if len(p.code) < p.ptr {
-		p.error = errors.New("Pointer Exception")
+	if len(p.Code) < p.Ptr {
+		p.Error = errors.New("Pointer Exception")
 		return RET_ERR
 	}
 	p.DebugLog(p.String() + "\n")
 	intcode := p.readNext()
-	p.ptr++
+	p.Ptr++
 	switch p.opCode(intcode) {
 	case OP_ADD:
 		v1, v2, v3 := p.readNextThree()
-		p.DebugLog(fmt.Sprintf("ADD %d (%d, %d, %d)\n", intcode, v1, v2, v3))
-		p.ptr = p.ptr + 3
+		debug := fmt.Sprintf("ADD %d (%d, %d, %d)\n", intcode, v1, v2, v3)
+		p.DebugLog(debug)
+		if p.DebugToFile {
+			p.OutputToFile(fmt.Sprintf("%d: %s", p.Ptr, debug))
+		}
+		p.Ptr = p.Ptr + 3
 		p.opAdd(intcode, v1, v2, v3)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_MLT:
 		v1, v2, v3 := p.readNextThree()
 		p.DebugLog(fmt.Sprintf("MLT %d (%d, %d, %d)\n", intcode, v1, v2, v3))
-		p.ptr = p.ptr + 3
+		p.Ptr = p.Ptr + 3
 		p.opMult(intcode, v1, v2, v3)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_INP:
 		v1 := p.readNext()
 		p.DebugLog(fmt.Sprintf("INP %d (%d)\n", intcode, v1))
-		p.ptr++
+		p.Ptr++
 		p.opInp(intcode, v1)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_OUT:
 		v1 := p.readNext()
-		p.ptr++
+		p.Ptr++
 		p.DebugLog(fmt.Sprintf("OUT %d (%d)\n", intcode, v1))
 		p.opOut(intcode, v1)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_JIT:
 		v1, v2 := p.readNextTwo()
 		p.DebugLog(fmt.Sprintf("JIT %d (%d, %d)\n", intcode, v1, v2))
-		p.ptr = p.ptr + 2
+		p.Ptr = p.Ptr + 2
 		p.opJumpIfTrue(intcode, v1, v2)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_JIF:
 		v1, v2 := p.readNextTwo()
 		p.DebugLog(fmt.Sprintf("JIF %d (%d, %d)\n", intcode, v1, v2))
-		p.ptr = p.ptr + 2
+		p.Ptr = p.Ptr + 2
 		p.opJumpIfFalse(intcode, v1, v2)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_ILT:
 		v1, v2, dest := p.readNextThree()
 		p.DebugLog(fmt.Sprintf("ILT %d (%d, %d, %d)\n", intcode, v1, v2, dest))
-		p.ptr = p.ptr + 3
+		p.Ptr = p.Ptr + 3
 		p.opIfLessThan(intcode, v1, v2, dest)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_IEQ:
 		v1, v2, dest := p.readNextThree()
-		p.DebugLog(fmt.Sprintf("IEQ %d (%d, %d, %d)\n", intcode, v1, v2, dest))
-		p.ptr = p.ptr + 3
+		debug := fmt.Sprintf("IEQ %d (%d, %d, %d)\n", intcode, v1, v2, dest)
+		p.DebugLog(debug)
+		p.Ptr = p.Ptr + 3
 		p.opIfEqual(intcode, v1, v2, dest)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
 	case OP_RBS:
 		v1 := p.readNext()
 		p.DebugLog(fmt.Sprintf("RBS %d (%d)\n", intcode, v1))
-		p.ptr = p.ptr + 1
+		p.Ptr = p.Ptr + 1
 		p.opModRelBase(intcode, v1)
-		if p.error != nil {
+		if p.Error != nil {
 			return RET_ERR
 		}
 		return RET_OK
@@ -229,31 +257,31 @@ func (p *Program) Step() int {
 		p.DebugLog(fmt.Sprintf("EXT %d\n", intcode))
 		return RET_DONE
 	}
-	p.error = errors.New(fmt.Sprintf("Invalid OpCode (%d)", intcode))
+	p.Error = errors.New(fmt.Sprintf("Invalid OpCode (%d)", intcode))
 	p.DebugLog(p.String())
 	return RET_ERR
 }
 
 func (p *Program) GetCurrentOpCode() int {
-	return p.code[p.ptr]
+	return p.Code[p.Ptr]
 }
 
 func (p *Program) GetProgramValueAt(idx int) int {
 	p.ensureLength(idx)
-	return p.code[idx]
+	return p.Code[idx]
 }
 
 func (p *Program) SetProgramValueAt(idx, val int) {
 	p.ensureLength(idx)
-	p.code[idx] = val
+	p.Code[idx] = val
 }
 
 func (p *Program) NeedsInput() bool {
-	return p.waitingForInput
+	return p.WaitingForInput
 }
 
 func (p *Program) NeedsOutput() bool {
-	return p.waitingForOutput
+	return p.WaitingForOutput
 }
 
 func (p *Program) opCode(intcode int) int {
@@ -266,33 +294,33 @@ func (p *Program) paramMode(intcode, pNum int) int {
 }
 
 func (p *Program) ensureLength(idx int) {
-	for len(p.code) < idx+1 {
-		p.code = append(p.code, 0)
+	for len(p.Code) < idx+1 {
+		p.Code = append(p.Code, 0)
 	}
 }
 
 func (p *Program) readNext() int {
-	p.ensureLength(p.ptr)
-	return p.code[p.ptr]
+	p.ensureLength(p.Ptr)
+	return p.Code[p.Ptr]
 }
 
 func (p *Program) readNextTwo() (int, int) {
-	p.ensureLength(p.ptr + 1)
-	return p.code[p.ptr], p.code[p.ptr+1]
+	p.ensureLength(p.Ptr + 1)
+	return p.Code[p.Ptr], p.Code[p.Ptr+1]
 }
 
 func (p *Program) readNextThree() (int, int, int) {
-	p.ensureLength(p.ptr + 2)
-	return p.code[p.ptr], p.code[p.ptr+1], p.code[p.ptr+2]
+	p.ensureLength(p.Ptr + 2)
+	return p.Code[p.Ptr], p.Code[p.Ptr+1], p.Code[p.Ptr+2]
 }
 
 func (p *Program) get(mode, v int) int {
 	if mode == MODE_POS {
 		p.ensureLength(v)
-		return p.code[v]
+		return p.Code[v]
 	} else if mode == MODE_REL {
-		p.ensureLength(p.relBase + v)
-		return p.code[p.relBase+v]
+		p.ensureLength(p.RelBase + v)
+		return p.Code[p.RelBase+v]
 	}
 	return v
 }
@@ -300,21 +328,21 @@ func (p *Program) get(mode, v int) int {
 func (p *Program) set(mode, idx, v int) {
 	if mode == MODE_POS {
 		p.ensureLength(idx)
-		p.code[idx] = v
+		p.Code[idx] = v
 	} else if mode == MODE_REL {
-		p.ensureLength(p.relBase + idx)
-		p.code[p.relBase+idx] = v
+		p.ensureLength(p.RelBase + idx)
+		p.Code[p.RelBase+idx] = v
 	}
 }
 
 func (p *Program) Input(v int) {
-	p.input <- v
-	//p.waitingForInput = false
+	p.InputChan <- v
+	//p.WaitingForInput = false
 }
 
 func (p *Program) Output() int {
-	v := <-p.output
-	p.waitingForOutput = false
+	v := <-p.OutputChan
+	p.WaitingForOutput = false
 	return v
 }
 
@@ -330,29 +358,29 @@ func (p *Program) opMult(intcode, a1, a2, dest int) {
 
 func (p *Program) opInp(intcode, dest int) {
 	destmd := p.paramMode(intcode, 0)
-	p.waitingForInput = true
-	p.set(destmd, dest, <-p.input)
-	p.waitingForInput = false
+	p.WaitingForInput = true
+	p.set(destmd, dest, <-p.InputChan)
+	p.WaitingForInput = false
 }
 
 func (p *Program) opOut(intcode, val int) {
 	valmd := p.paramMode(intcode, 0)
 	ret := p.get(valmd, val)
-	p.waitingForOutput = true
-	p.output <- ret
+	p.WaitingForOutput = true
+	p.OutputChan <- ret
 }
 
 func (p *Program) opJumpIfTrue(intcode, v1, v2 int) {
 	v1md, v2md := p.paramMode(intcode, 0), p.paramMode(intcode, 1)
 	if p.get(v1md, v1) != 0 {
-		p.ptr = p.get(v2md, v2)
+		p.Ptr = p.get(v2md, v2)
 	}
 }
 
 func (p *Program) opJumpIfFalse(intcode, v1, v2 int) {
 	v1md, v2md := p.paramMode(intcode, 0), p.paramMode(intcode, 1)
 	if p.get(v1md, v1) == 0 {
-		p.ptr = p.get(v2md, v2)
+		p.Ptr = p.get(v2md, v2)
 	}
 }
 
@@ -376,17 +404,17 @@ func (p *Program) opIfEqual(intcode, v1, v2, dest int) {
 
 func (p *Program) opModRelBase(intcode, v1 int) {
 	v1md := p.paramMode(intcode, 0)
-	p.relBase = p.relBase + p.get(v1md, v1)
+	p.RelBase = p.RelBase + p.get(v1md, v1)
 }
 
 func (p Program) String() string {
 	var ret string
-	ret = ret + fmt.Sprintf("(PTR: %d, RBS: %d)\n", p.ptr, p.relBase)
-	for k := range p.code {
-		if k == p.ptr {
-			ret = fmt.Sprintf("%s [%d]", ret, p.code[k])
+	ret = ret + fmt.Sprintf("(PTR: %d, RBS: %d)\n", p.Ptr, p.RelBase)
+	for k := range p.Code {
+		if k == p.Ptr {
+			ret = fmt.Sprintf("%s [%d]", ret, p.Code[k])
 		} else {
-			ret = fmt.Sprintf("%s %d", ret, p.code[k])
+			ret = fmt.Sprintf("%s %d", ret, p.Code[k])
 		}
 	}
 	return ret