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Flesh out readme, reorder shiny code
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Zellyn Hunter
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README.md
42
README.md
@ -1,4 +1,42 @@
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goapple2
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========
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# goapple2
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Apple ][+ emulator written in Go.
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## Status
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Basic functionality (keyboard input, text, low and hires graphics)
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works.
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Very basic (and fake) *read-only* disk access works, for `.dsk` images
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where no trickery is involved.
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This was one of my early Go-learning projects: the code organization
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is pretty horrible.
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## Shiny
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This is the main "supported" interface, hacked together during hack
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day at GopherCon2016. It's almost certainly doing things wrong
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Shiny-wise: pull requests welcome. Press backquote/tilde to exit.
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## Texty
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`texty/` contains a hackish version of the emulator that runs in a
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terminal. It interprets all videoscan outputs as text, regardless of
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any other settings. Press `~` to exit.
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## Where to find ROMs
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cd data/roms
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./getroms.sh
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## Contributing
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Pull requests welcome. If you have any questions, feel free to get in
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touch with me: username "zellyn" on gmail, twitter, facebook, github,
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golang slack.
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### Contributors
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- [zellyn](https://github.com/zellyn)
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- [frumious](https://github.com/frumious)
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BIN
data/roms/apple2-chars.rom
Normal file
BIN
data/roms/apple2-chars.rom
Normal file
Binary file not shown.
36
data/roms/getroms.sh
Executable file
36
data/roms/getroms.sh
Executable file
@ -0,0 +1,36 @@
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#!/usr/bin/env bash
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DIR1='http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Computers/Apple%20II/Apple%20II/ROM%20Images'
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DIR2='http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Computers/Apple%20II/Apple%20II%20plus/ROM%20Images'
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rm -f apple2.rom apple2+.rom
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D0_2="Apple%20Programmer's%20Aid%20%231%20ROM%20(D000)%20-%20341-0016%20-%202716.bin"
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E0_2='Apple%20II%20ROM%20Pages%20E0-E7%20-%20341-0001%20-%20Integer%20BASIC.bin'
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E8_2='Apple%20II%20ROM%20Pages%20E8-EF%20-%20341-0002%20-%20Integer%20BASIC.bin'
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F0_2='Apple%20II%20ROM%20Pages%20F0-F7%20-%20341-0003%20-%20Integer%20BASIC.bin'
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F8_2='Apple%20II%20ROM%20Pages%20F8-FF%20-%20341-0004%20-%20Original%20Monitor.bin'
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D0_2P='Apple%20II%20plus%20ROM%20Pages%20D0-D7%20-%20341-0011%20-%20Applesoft%20BASIC.bin'
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D8_2P='Apple%20II%20plus%20ROM%20Pages%20D8-DF%20-%20341-0012%20-%20Applesoft%20BASIC.bin'
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E0_2P='Apple%20II%20plus%20ROM%20Pages%20E0-E7%20-%20341-0013%20-%20Applesoft%20BASIC.bin'
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E8_2P='Apple%20II%20plus%20ROM%20Pages%20E8-EF%20-%20341-0014%20-%20Applesoft%20BASIC.bin'
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F0_2P='Apple%20II%20plus%20ROM%20Pages%20F0-F7%20-%20341-0015%20-%20Applesoft%20BASIC.bin'
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F8_2P='Apple%20II%20plus%20ROM%20Pages%20F8-FF%20-%20341-0020%20-%20Autostart%20Monitor.bin'
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curl $DIR2/$D0_2P > apple2+.rom
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curl $DIR2/$D8_2P >> apple2+.rom
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curl $DIR2/$E0_2P >> apple2+.rom
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curl $DIR2/$E8_2P >> apple2+.rom
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curl $DIR2/$F0_2P >> apple2+.rom
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curl $DIR2/$F8_2P >> apple2+.rom
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curl $DIR1/$D0_2 > apple2.rom
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curl $DIR2/$D8_2P >> apple2.rom
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curl $DIR1/$E0_2 >> apple2.rom
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curl $DIR1/$E8_2 >> apple2.rom
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curl $DIR1/$F0_2 >> apple2.rom
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curl $DIR1/$F8_2 >> apple2.rom
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curl http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Disk%20Drive%20Controllers/Apple%20Disk%20II%20Interface%20Card/ROM%20Images/Apple%20Disk%20II%2016%20Sector%20Interface%20Card%20ROM%20P5%20-%20341-0027.bin >> 'Apple Disk II 16 Sector Interface Card ROM P5 - 341-0027.bin'
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@ -16,7 +16,6 @@ import (
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"golang.org/x/mobile/event/key"
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"golang.org/x/mobile/event/lifecycle"
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"github.com/zellyn/go6502/cpu"
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"github.com/zellyn/goapple2"
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"github.com/zellyn/goapple2/cards"
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"github.com/zellyn/goapple2/util"
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@ -38,10 +37,10 @@ const (
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// Run the emulator
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func RunEmulator(s screen.Screen) {
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rom := util.ReadRomOrDie("../data/roms/apple2+.rom")
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// charRom = util.ReadFullCharacterRomOrDie("../data/roms/apple2char.rom")
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rom := util.ReadRomOrDie("../data/roms/apple2+.rom", 12288)
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charRom := util.ReadSmallCharacterRomOrDie("../data/roms/apple2-chars.rom")
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intBasicRom := util.ReadRomOrDie("../data/roms/apple2.rom")
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intBasicRom := util.ReadRomOrDie("../data/roms/apple2.rom", 12288)
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util.ReadRomOrDie("../data/roms/Apple Disk II 16 Sector Interface Card ROM P5 - 341-0027.bin", 256)
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eventChan := make(chan (interface{}))
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w, err := s.NewWindow(&screen.NewWindowOptions{Width: SCREEN_WIDTH, Height: SCREEN_HEIGHT})
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@ -129,9 +128,8 @@ func RunEmulator(s screen.Screen) {
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a2.AddPCAction(
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0xBDAF, goapple2.PCAction{Type: goapple2.ActionDumpMem, String: "0xBDAF-goa2.bin", Delay: 68})
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*/
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_ = cpu.FLAG_Z
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// go typeProgram(a2)
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go typeProgram(a2)
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go func() {
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for {
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@ -307,6 +305,8 @@ var KeyToApple = map[Key]byte{
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func shinyToAppleKeyboard(e key.Event) (byte, error) {
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if b, ok := KeyToApple[Key{e.Code, e.Modifiers}]; ok {
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return b, nil
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} else {
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fmt.Printf("Key for %v not found\n", e)
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}
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/*
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switch k.Mod {
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@ -346,8 +346,10 @@ func ProcessEvents(a2 *goapple2.Apple2, w screen.Window, eventChan chan interfac
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return true
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}
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if e.Direction == key.DirPress || e.Direction == key.DirNone {
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if b, err := shinyToAppleKeyboard(e); err != nil {
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if b, err := shinyToAppleKeyboard(e); err == nil {
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a2.Keypress(b)
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} else {
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fmt.Printf("Unable to convert event %v (%d, %d): %v\n", e, int(e.Code), int(e.Modifiers), err)
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}
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}
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}
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@ -410,7 +412,6 @@ func (s ShinyPlotter) OncePerFrame() {
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}
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func typeProgram(a2 *goapple2.Apple2) {
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return
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lines := []string{
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"10 GR",
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"20 POKE -16302,0",
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@ -5,16 +5,19 @@ import (
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"io/ioutil"
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)
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func ReadRomOrDie(filename string) []byte {
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func ReadRomOrDie(filename string, size int) []byte {
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bytes, err := ioutil.ReadFile(filename)
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if err != nil {
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panic("Cannot read ROM file: " + filename)
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}
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if len(bytes) != size {
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panic(fmt.Sprintf("Want length of %d for ROM %q; want %d", size, filename, len(bytes)))
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}
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return bytes
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}
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func ReadSmallCharacterRomOrDie(filename string) [2048]byte {
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bytes := ReadRomOrDie(filename)
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bytes := ReadRomOrDie(filename, 512)
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if len(bytes) != 512 {
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panic(fmt.Sprintf("Got %d bytes (not 512) from file '%s'", len(bytes), filename))
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}
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@ -29,7 +32,7 @@ func ReadSmallCharacterRomOrDie(filename string) [2048]byte {
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}
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func ReadFullCharacterRomOrDie(filename string) [2048]byte {
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bytes := ReadRomOrDie(filename)
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bytes := ReadRomOrDie(filename, 2048)
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if len(bytes) != 2048 {
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panic(fmt.Sprintf("Got %d bytes (not 2048) from file '%s'", len(bytes), filename))
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}
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