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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

695
LICENSE.txt
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@ -1,674 +1,21 @@
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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>.
MIT License
Copyright (c) 2016 Zellyn James Hunter
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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