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Remove INSTALL.md, s/GPLv3/MIT/, remove broken sdl

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INSTALL.md
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brew install sdl sdl_image sdl_mixer sdl_ttf
go get github.com/zellyn/Go-SDL/sdl --with-x11-driver
go get github.com/zellyn/Go-SDL/sdl/audio

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LICENSE.txt
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Version 3, 29 June 2007
Copyright (c) 2016 Zellyn James Hunter
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along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

4
README.md
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@ -2,6 +2,10 @@
Apple ][+ emulator written in Go. Apple ][+ emulator written in Go.
## Install
`go get -u github.com/zellyn/goapple2/{texty,shiny}`
## Status ## Status
Basic functionality (keyboard input, text, low and hires graphics) Basic functionality (keyboard input, text, low and hires graphics)

1
sdl/run.sh
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@ -1 +0,0 @@
SDL_VIDEODRIVER=x11 go run sdl.go $@

397
sdl/sdl.go
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@ -1,397 +0,0 @@
// Simplest possible Apple II that will possibly boot, in SDL. ~ (tilde) to quit.
package main
import (
"flag"
"fmt"
"log"
"os"
"runtime"
"runtime/pprof"
"unsafe"
"github.com/zellyn/Go-SDL/sdl"
"github.com/zellyn/go6502/cpu"
"github.com/zellyn/goapple2"
"github.com/zellyn/goapple2/cards"
"github.com/zellyn/goapple2/disk"
"github.com/zellyn/goapple2/util"
"github.com/zellyn/goapple2/videoscan"
)
var (
cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
steplimit = flag.Uint64("steplimit", 0, "limit on number of steps to take")
)
const (
BORDER_H = 20
BORDER_W = 20
SCREEN_WIDTH = 560 + 2*BORDER_W
SCREEN_HEIGHT = 384 + 2*BORDER_H
SCREEN_BPP = 32
)
func plot(x, y uint, color uint32, screen *sdl.Surface) {
x = x + BORDER_W
y = y + BORDER_H
pixels := uintptr(screen.Pixels)
offset := uintptr(y*uint(screen.Pitch) + x*(SCREEN_BPP/8))
addr := pixels + offset
*(*uint32)(unsafe.Pointer(addr)) = color
}
func Init() (screen *sdl.Surface, err error) {
// Intialise the SDL subsystems
if ok := sdl.Init(sdl.INIT_EVERYTHING); ok != 0 {
return nil, fmt.Errorf("%s", sdl.GetError())
}
// Set up the screen
screen = sdl.SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, sdl.SWSURFACE)
// If couldn't get the screen, return false
if screen == nil {
return nil, fmt.Errorf("%s", sdl.GetError())
}
// Set the window caption (window title)
sdl.WM_SetCaption("Apple ][", "")
// Everything went fine
return screen, nil
}
const (
M_NONE = iota
M_SHIFT_OR_NONE
M_SHIFT
M_CTRL
M_ANY
)
type Key struct {
sym uint32
mod uint32
}
var KeyToApple = map[Key]byte{
Key{sdl.K_a, M_SHIFT_OR_NONE}: 'A',
Key{sdl.K_b, M_SHIFT_OR_NONE}: 'B',
Key{sdl.K_c, M_SHIFT_OR_NONE}: 'C',
Key{sdl.K_d, M_SHIFT_OR_NONE}: 'D',
Key{sdl.K_e, M_SHIFT_OR_NONE}: 'E',
Key{sdl.K_f, M_SHIFT_OR_NONE}: 'F',
Key{sdl.K_g, M_SHIFT_OR_NONE}: 'G',
Key{sdl.K_h, M_SHIFT_OR_NONE}: 'H',
Key{sdl.K_i, M_SHIFT_OR_NONE}: 'I',
Key{sdl.K_j, M_SHIFT_OR_NONE}: 'J',
Key{sdl.K_k, M_SHIFT_OR_NONE}: 'K',
Key{sdl.K_l, M_SHIFT_OR_NONE}: 'L',
Key{sdl.K_m, M_SHIFT_OR_NONE}: 'M',
Key{sdl.K_n, M_SHIFT_OR_NONE}: 'N',
Key{sdl.K_o, M_SHIFT_OR_NONE}: 'O',
Key{sdl.K_p, M_SHIFT_OR_NONE}: 'P',
Key{sdl.K_q, M_SHIFT_OR_NONE}: 'Q',
Key{sdl.K_r, M_SHIFT_OR_NONE}: 'R',
Key{sdl.K_s, M_SHIFT_OR_NONE}: 'S',
Key{sdl.K_t, M_SHIFT_OR_NONE}: 'T',
Key{sdl.K_u, M_SHIFT_OR_NONE}: 'U',
Key{sdl.K_v, M_SHIFT_OR_NONE}: 'V',
Key{sdl.K_w, M_SHIFT_OR_NONE}: 'W',
Key{sdl.K_x, M_SHIFT_OR_NONE}: 'X',
Key{sdl.K_y, M_SHIFT_OR_NONE}: 'Y',
Key{sdl.K_z, M_SHIFT_OR_NONE}: 'Z',
Key{sdl.K_a, M_CTRL}: 1,
Key{sdl.K_b, M_CTRL}: 2,
Key{sdl.K_c, M_CTRL}: 3,
Key{sdl.K_d, M_CTRL}: 4,
Key{sdl.K_e, M_CTRL}: 5,
Key{sdl.K_f, M_CTRL}: 6,
Key{sdl.K_g, M_CTRL}: 7,
Key{sdl.K_h, M_CTRL}: 8,
Key{sdl.K_i, M_CTRL}: 9,
Key{sdl.K_j, M_CTRL}: 10,
Key{sdl.K_k, M_CTRL}: 11,
Key{sdl.K_l, M_CTRL}: 12,
Key{sdl.K_m, M_CTRL}: 13,
Key{sdl.K_n, M_CTRL}: 14,
Key{sdl.K_o, M_CTRL}: 15,
Key{sdl.K_p, M_CTRL}: 16,
Key{sdl.K_q, M_CTRL}: 17,
Key{sdl.K_r, M_CTRL}: 18,
Key{sdl.K_s, M_CTRL}: 19,
Key{sdl.K_t, M_CTRL}: 20,
Key{sdl.K_u, M_CTRL}: 21,
Key{sdl.K_v, M_CTRL}: 22,
Key{sdl.K_w, M_CTRL}: 23,
Key{sdl.K_x, M_CTRL}: 24,
Key{sdl.K_y, M_CTRL}: 25,
Key{sdl.K_z, M_CTRL}: 26,
Key{sdl.K_0, M_NONE}: '0',
Key{sdl.K_1, M_NONE}: '1',
Key{sdl.K_2, M_NONE}: '2',
Key{sdl.K_3, M_NONE}: '3',
Key{sdl.K_4, M_NONE}: '4',
Key{sdl.K_5, M_NONE}: '5',
Key{sdl.K_6, M_NONE}: '6',
Key{sdl.K_7, M_NONE}: '7',
Key{sdl.K_8, M_NONE}: '8',
Key{sdl.K_9, M_NONE}: '9',
Key{sdl.K_1, M_SHIFT}: '!',
Key{sdl.K_2, M_SHIFT}: '@',
Key{sdl.K_3, M_SHIFT}: '#',
Key{sdl.K_4, M_SHIFT}: '$',
Key{sdl.K_5, M_SHIFT}: '%',
Key{sdl.K_6, M_SHIFT}: '^',
Key{sdl.K_7, M_SHIFT}: '&',
Key{sdl.K_8, M_SHIFT}: '*',
Key{sdl.K_9, M_SHIFT}: '(',
Key{sdl.K_0, M_SHIFT}: ')',
Key{sdl.K_MINUS, M_NONE}: '-',
Key{sdl.K_MINUS, M_SHIFT}: '_',
Key{sdl.K_EQUALS, M_NONE}: '=',
Key{sdl.K_EQUALS, M_SHIFT}: '+',
Key{sdl.K_LEFTBRACKET, M_NONE}: '[',
Key{sdl.K_RIGHTBRACKET, M_NONE}: ']',
Key{sdl.K_SEMICOLON, M_NONE}: ';',
Key{sdl.K_SEMICOLON, M_SHIFT}: ':',
Key{sdl.K_QUOTE, M_NONE}: '\'',
Key{sdl.K_QUOTE, M_SHIFT}: '"',
Key{sdl.K_COMMA, M_NONE}: ',',
Key{sdl.K_COMMA, M_SHIFT}: '<',
Key{sdl.K_PERIOD, M_NONE}: '.',
Key{sdl.K_PERIOD, M_SHIFT}: '>',
Key{sdl.K_SLASH, M_NONE}: '/',
Key{sdl.K_SLASH, M_SHIFT}: '?',
Key{sdl.K_BACKSLASH, M_NONE}: '\\',
Key{sdl.K_SPACE, M_SHIFT_OR_NONE}: ' ',
Key{sdl.K_RETURN, M_ANY}: 13,
Key{sdl.K_BACKSPACE, M_ANY}: 8,
Key{sdl.K_LEFT, M_ANY}: 8,
Key{sdl.K_RIGHT, M_ANY}: 21,
}
func sdlToAppleKeyboard(k sdl.Keysym) (key byte, err error) {
if b, ok := KeyToApple[Key{k.Sym, M_ANY}]; ok {
return b, nil
}
switch k.Mod {
case sdl.KMOD_NONE:
if b, ok := KeyToApple[Key{k.Sym, M_NONE}]; ok {
return b, nil
}
if b, ok := KeyToApple[Key{k.Sym, M_SHIFT_OR_NONE}]; ok {
return b, nil
}
case sdl.KMOD_LSHIFT, sdl.KMOD_RSHIFT, sdl.KMOD_LSHIFT | sdl.KMOD_RSHIFT:
if b, ok := KeyToApple[Key{k.Sym, M_SHIFT}]; ok {
return b, nil
}
if b, ok := KeyToApple[Key{k.Sym, M_SHIFT_OR_NONE}]; ok {
return b, nil
}
case sdl.KMOD_LCTRL, sdl.KMOD_RCTRL, sdl.KMOD_LCTRL | sdl.KMOD_RCTRL:
if b, ok := KeyToApple[Key{k.Sym, M_CTRL}]; ok {
return b, nil
}
}
return 0, fmt.Errorf("hi")
}
func ProcessEvents(events <-chan interface{}, a2 *goapple2.Apple2) (done bool) {
select {
case _event := <-events:
switch e := _event.(type) {
case sdl.QuitEvent:
return true
case sdl.KeyboardEvent:
if e.Type == sdl.KEYDOWN {
if e.Keysym.Sym == sdl.K_F1 {
return true
}
if e.Keysym.Mod == sdl.KMOD_LCTRL && e.Keysym.Sym == sdl.K_LEFTBRACKET {
return true
}
if key, err := sdlToAppleKeyboard(e.Keysym); err == nil {
a2.Keypress(key)
}
}
}
default:
// Nothing to do here
}
return false
}
type SdlPlotter struct {
screen *sdl.Surface
oncePerFrame func()
}
func (s SdlPlotter) Plot(pd videoscan.PlotData) {
y := uint(pd.Row)
x := uint(pd.Column) * 14
data := pd.Data
for i := uint(0); i < 14; i++ {
color1 := uint32(0)
color2 := uint32(0)
if data&1 > 0 {
color1 = 0x00ff00
color2 = 0x008800
}
plot(x+i, y*2+0, color1, s.screen)
plot(x+i, y*2+1, color2, s.screen)
data >>= 1
}
}
func (s SdlPlotter) OncePerFrame() {
s.screen.Unlock()
s.screen.Flip()
s.screen.Lock()
s.oncePerFrame()
}
func typeProgram(a2 *goapple2.Apple2) {
return
lines := []string{
"10 GR",
"20 POKE -16302,0",
"30 FOR Y=0 TO 47",
"40 FOR X=0 TO 39",
"50 COLOR=INT(RND(1)*16)",
"60 PLOT X,Y",
"70 NEXT",
"80 NEXT",
"RUN",
}
lines = []string{
"10 HGR2",
"20 FOR I = 0 to 7",
"30 HCOLOR=7-I",
"40 HPLOT I*10, 0 TO 191 + I*10, 191",
"50 NEXT",
"RUN",
}
for _, line := range lines {
for _, ch := range line {
a2.Keypress(byte(ch))
}
a2.Keypress(13)
}
}
// Run the emulator
func RunEmulator() {
rom := util.ReadRomOrDie("../data/roms/apple2+.rom")
// charRom = util.ReadFullCharacterRomOrDie("../data/roms/apple2char.rom")
charRom := util.ReadSmallCharacterRomOrDie("../data/roms/apple2-chars.rom")
screen, err := Init()
if err != nil {
panic(err)
}
var a2 *goapple2.Apple2
oncePerFrame := func() {
a2.Done = a2.Done || ProcessEvents(sdl.Events, a2)
runtime.Gosched()
}
plotter := SdlPlotter{screen, oncePerFrame}
a2 = goapple2.NewApple2(plotter, rom, charRom)
intBasicRom := util.ReadRomOrDie("../data/roms/apple2.rom")
firmwareCard, err := cards.NewFirmwareCard(intBasicRom, "Intbasic Firmware Card", 0, a2)
if err != nil {
panic(err)
}
if err := a2.AddCard(firmwareCard); err != nil {
log.Fatal(err)
}
diskCardRom := util.ReadRomOrDie("../data/roms/Apple Disk II 16 Sector Interface Card ROM P5 - 341-0027.bin")
diskCard, err := cards.NewDiskCard(diskCardRom, 6, a2)
if err != nil {
panic(err)
}
if err := a2.AddCard(diskCard); err != nil {
log.Fatal(err)
}
// disk1, err := disk.DiskFromFile("../data/disks/spedtest.dsk", 0)
// disk1, err := disk.DiskFromFile("../data/disks/dung_beetles.dsk", 0)
disk1, err := disk.DiskFromFile("../data/disks/chivalry.dsk", 0)
if err != nil {
log.Fatal(err)
}
diskCard.LoadDisk(disk1, 0)
steps := *steplimit
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
/*
a2.AddPCAction(
0xB940, goapple2.PCAction{Type: goapple2.ActionDumpMem, String: "0xB940-goa2.bin",
Mask: cpu.FLAG_Z, Masked: cpu.FLAG_Z, Delay: 68})
a2.AddPCAction(0xB7B5, goapple2.PCAction{Type: goapple2.ActionHere, String: "ENTER.RWTS"})
a2.AddPCAction(0xB7BE, goapple2.PCAction{Type: goapple2.ActionHere, String: "ENTER.RWTS - Success"})
a2.AddPCAction(0xB7C1, goapple2.PCAction{Type: goapple2.ActionHere, String: "ENTER.RWTS - Fail"})
a2.AddPCAction(0xBD00, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS"})
a2.AddPCAction(0xBDAF, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS Command"})
// a2.AddPCAction(0xBE35, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS READ.SECTOR call"})
// a2.AddPCAction(0xBE38, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS READ.SECTOR success"})
a2.AddPCAction(0xBE46, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS Success"})
a2.AddPCAction(0xBE48, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS Error"})
a2.AddPCAction(0xBDAF, goapple2.PCAction{Type: goapple2.ActionDiskStatus})
a2.AddPCAction(0xBDAF, goapple2.PCAction{Type: goapple2.ActionTrace, String: "on",
Delay: 70})
a2.AddPCAction(
0xBE48, goapple2.PCAction{Type: goapple2.ActionSetLimit, String: "1"})
a2.AddPCAction(
0xBDAF, goapple2.PCAction{Type: goapple2.ActionDumpMem, String: "0xBDAF-goa2.bin", Delay: 68})
*/
_ = cpu.FLAG_Z
// go typeProgram(a2)
for !a2.Done {
err := a2.Step()
if err != nil {
fmt.Println(err)
break
}
// runtime.Gosched() // So the keyboard-reading goroutines can run
if steps > 0 {
steps--
if steps == 0 {
a2.Quit()
}
}
}
a2.Quit()
sdl.Quit()
}
func main() {
flag.Parse()
RunEmulator()
}