446 lines
12 KiB
Go
446 lines
12 KiB
Go
// Simplest possible Apple II that will possibly boot, in exp/shiny. ~ (tilde) to quit.
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package main
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import (
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"flag"
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"fmt"
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"image"
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"image/color"
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"log"
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"os"
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"runtime"
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"runtime/pprof"
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"golang.org/x/exp/shiny/driver"
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"golang.org/x/exp/shiny/screen"
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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/goapple2"
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"github.com/zellyn/goapple2/cards"
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"github.com/zellyn/goapple2/util"
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"github.com/zellyn/goapple2/videoscan"
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)
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var (
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cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
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steplimit = flag.Uint64("steplimit", 0, "limit on number of steps to take")
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)
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const (
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BORDER_H = 20
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BORDER_W = 20
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SCREEN_WIDTH = 560 + 2*BORDER_W
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SCREEN_HEIGHT = 384 + 2*BORDER_H
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SCREEN_BPP = 32
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)
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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", 12288)
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charRom := util.ReadSmallCharacterRomOrDie("../data/roms/apple2-chars.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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if err != nil {
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log.Fatal(err)
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}
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defer w.Release()
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winSize := image.Point{SCREEN_WIDTH, SCREEN_HEIGHT}
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b, err := s.NewBuffer(winSize)
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if err != nil {
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log.Fatal(err)
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}
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defer b.Release()
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var a2 *goapple2.Apple2
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oncePerFrame := func() {
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a2.Done = a2.Done || ProcessEvents(a2, w, eventChan)
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runtime.Gosched()
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}
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plotter := ShinyPlotter{w, b, oncePerFrame}
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a2 = goapple2.NewApple2(plotter, rom, charRom)
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firmwareCard, err := cards.NewFirmwareCard(intBasicRom, "Intbasic Firmware Card", 0, a2)
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if err != nil {
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panic(err)
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}
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if err := a2.AddCard(firmwareCard); err != nil {
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log.Fatal(err)
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}
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/*
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diskCardRom := util.ReadRomOrDie("../data/roms/Apple Disk II 16 Sector Interface Card ROM P5 - 341-0027.bin")
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diskCard, err := cards.NewDiskCard(diskCardRom, 6, a2)
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if err != nil {
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panic(err)
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}
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if err := a2.AddCard(diskCard); err != nil {
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log.Fatal(err)
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}
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*/
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// disk1, err := disk.DiskFromFile("../data/disks/spedtest.dsk", 0)
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// disk1, err := disk.DiskFromFile("../data/disks/dung_beetles.dsk", 0)
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// disk1, err := disk.DiskFromFile("../data/disks/chivalry.dsk", 0)
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// disk1, err := disk.DiskFromFile("../data/disks/wavynavy.dsk", 0)
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// if err != nil {
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// log.Fatal(err)
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// }
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// diskCard.LoadDisk(disk1, 0)
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steps := *steplimit
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if *cpuprofile != "" {
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f, err := os.Create(*cpuprofile)
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if err != nil {
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log.Fatal(err)
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}
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pprof.StartCPUProfile(f)
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defer pprof.StopCPUProfile()
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}
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/*
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a2.AddPCAction(
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0xB940, goapple2.PCAction{Type: goapple2.ActionDumpMem, String: "0xB940-goa2.bin",
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Mask: cpu.FLAG_Z, Masked: cpu.FLAG_Z, Delay: 68})
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a2.AddPCAction(0xB7B5, goapple2.PCAction{Type: goapple2.ActionHere, String: "ENTER.RWTS"})
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a2.AddPCAction(0xB7BE, goapple2.PCAction{Type: goapple2.ActionHere, String: "ENTER.RWTS - Success"})
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a2.AddPCAction(0xB7C1, goapple2.PCAction{Type: goapple2.ActionHere, String: "ENTER.RWTS - Fail"})
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a2.AddPCAction(0xBD00, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS"})
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a2.AddPCAction(0xBDAF, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS Command"})
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// a2.AddPCAction(0xBE35, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS READ.SECTOR call"})
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// a2.AddPCAction(0xBE38, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS READ.SECTOR success"})
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a2.AddPCAction(0xBE46, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS Success"})
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a2.AddPCAction(0xBE48, goapple2.PCAction{Type: goapple2.ActionHere, String: "RWTS Error"})
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a2.AddPCAction(0xBDAF, goapple2.PCAction{Type: goapple2.ActionDiskStatus})
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a2.AddPCAction(0xBDAF, goapple2.PCAction{Type: goapple2.ActionTrace, String: "on",
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Delay: 70})
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a2.AddPCAction(
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0xBE48, goapple2.PCAction{Type: goapple2.ActionSetLimit, String: "1"})
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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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go typeProgram(a2)
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go func() {
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for {
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eventChan <- w.NextEvent()
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}
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}()
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for !a2.Done {
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err := a2.Step()
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if err != nil {
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fmt.Println(err)
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break
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}
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// runtime.Gosched() // So the keyboard-reading goroutines can run
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if steps > 0 {
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steps--
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if steps == 0 {
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a2.Quit()
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}
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}
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}
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a2.Quit()
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}
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func plot(x, y int, c color.RGBA, b screen.Buffer) {
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rgba := b.RGBA()
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rgba.SetRGBA(x+BORDER_W, y+BORDER_H, c)
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/*
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x = x + BORDER_W
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y = y + BORDER_H
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pixels := uintptr(screen.Pixels)
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offset := uintptr(y*uint(screen.Pitch) + x*(SCREEN_BPP/8))
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addr := pixels + offset
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*(*uint32)(unsafe.Pointer(addr)) = color
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*/
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}
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type Key struct {
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code key.Code
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mod key.Modifiers
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}
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var KeyToApple = map[Key]byte{
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Key{key.CodeA, 0}: 'A',
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Key{key.CodeB, 0}: 'B',
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Key{key.CodeC, 0}: 'C',
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Key{key.CodeD, 0}: 'D',
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Key{key.CodeE, 0}: 'E',
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Key{key.CodeF, 0}: 'F',
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Key{key.CodeG, 0}: 'G',
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Key{key.CodeH, 0}: 'H',
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Key{key.CodeI, 0}: 'I',
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Key{key.CodeJ, 0}: 'J',
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Key{key.CodeK, 0}: 'K',
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Key{key.CodeL, 0}: 'L',
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Key{key.CodeM, 0}: 'M',
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Key{key.CodeN, 0}: 'N',
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Key{key.CodeO, 0}: 'O',
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Key{key.CodeP, 0}: 'P',
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Key{key.CodeQ, 0}: 'Q',
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Key{key.CodeR, 0}: 'R',
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Key{key.CodeS, 0}: 'S',
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Key{key.CodeT, 0}: 'T',
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Key{key.CodeU, 0}: 'U',
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Key{key.CodeV, 0}: 'V',
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Key{key.CodeW, 0}: 'W',
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Key{key.CodeX, 0}: 'X',
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Key{key.CodeY, 0}: 'Y',
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Key{key.CodeZ, 0}: 'Z',
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Key{key.CodeA, key.ModShift}: 'A',
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Key{key.CodeB, key.ModShift}: 'B',
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Key{key.CodeC, key.ModShift}: 'C',
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Key{key.CodeD, key.ModShift}: 'D',
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Key{key.CodeE, key.ModShift}: 'E',
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Key{key.CodeF, key.ModShift}: 'F',
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Key{key.CodeG, key.ModShift}: 'G',
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Key{key.CodeH, key.ModShift}: 'H',
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Key{key.CodeI, key.ModShift}: 'I',
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Key{key.CodeJ, key.ModShift}: 'J',
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Key{key.CodeK, key.ModShift}: 'K',
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Key{key.CodeL, key.ModShift}: 'L',
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Key{key.CodeM, key.ModShift}: 'M',
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Key{key.CodeN, key.ModShift}: 'N',
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Key{key.CodeO, key.ModShift}: 'O',
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Key{key.CodeP, key.ModShift}: 'P',
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Key{key.CodeQ, key.ModShift}: 'Q',
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Key{key.CodeR, key.ModShift}: 'R',
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Key{key.CodeS, key.ModShift}: 'S',
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Key{key.CodeT, key.ModShift}: 'T',
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Key{key.CodeU, key.ModShift}: 'U',
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Key{key.CodeV, key.ModShift}: 'V',
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Key{key.CodeW, key.ModShift}: 'W',
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Key{key.CodeX, key.ModShift}: 'X',
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Key{key.CodeY, key.ModShift}: 'Y',
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Key{key.CodeZ, key.ModShift}: 'Z',
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Key{key.CodeA, key.ModControl}: 1,
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Key{key.CodeB, key.ModControl}: 2,
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Key{key.CodeC, key.ModControl}: 3,
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Key{key.CodeD, key.ModControl}: 4,
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Key{key.CodeE, key.ModControl}: 5,
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Key{key.CodeF, key.ModControl}: 6,
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Key{key.CodeG, key.ModControl}: 7,
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Key{key.CodeH, key.ModControl}: 8,
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Key{key.CodeI, key.ModControl}: 9,
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Key{key.CodeJ, key.ModControl}: 10,
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Key{key.CodeK, key.ModControl}: 11,
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Key{key.CodeL, key.ModControl}: 12,
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Key{key.CodeM, key.ModControl}: 13,
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Key{key.CodeN, key.ModControl}: 14,
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Key{key.CodeO, key.ModControl}: 15,
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Key{key.CodeP, key.ModControl}: 16,
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Key{key.CodeQ, key.ModControl}: 17,
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Key{key.CodeR, key.ModControl}: 18,
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Key{key.CodeS, key.ModControl}: 19,
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Key{key.CodeT, key.ModControl}: 20,
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Key{key.CodeU, key.ModControl}: 21,
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Key{key.CodeV, key.ModControl}: 22,
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Key{key.CodeW, key.ModControl}: 23,
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Key{key.CodeX, key.ModControl}: 24,
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Key{key.CodeY, key.ModControl}: 25,
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Key{key.CodeZ, key.ModControl}: 26,
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Key{key.Code0, 0}: '0',
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Key{key.Code1, 0}: '1',
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Key{key.Code2, 0}: '2',
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Key{key.Code3, 0}: '3',
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Key{key.Code4, 0}: '4',
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Key{key.Code5, 0}: '5',
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Key{key.Code6, 0}: '6',
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Key{key.Code7, 0}: '7',
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Key{key.Code8, 0}: '8',
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Key{key.Code9, 0}: '9',
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Key{key.Code1, key.ModShift}: '!',
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Key{key.Code2, key.ModShift}: '@',
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Key{key.Code3, key.ModShift}: '#',
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Key{key.Code4, key.ModShift}: '$',
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Key{key.Code5, key.ModShift}: '%',
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Key{key.Code6, key.ModShift}: '^',
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Key{key.Code7, key.ModShift}: '&',
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Key{key.Code8, key.ModShift}: '*',
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Key{key.Code9, key.ModShift}: '(',
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Key{key.Code0, key.ModShift}: ')',
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Key{key.CodeHyphenMinus, 0}: '-',
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Key{key.CodeHyphenMinus, key.ModShift}: '_',
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Key{key.CodeEqualSign, 0}: '=',
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Key{key.CodeEqualSign, key.ModShift}: '+',
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Key{key.CodeLeftSquareBracket, 0}: '[',
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Key{key.CodeRightSquareBracket, 0}: ']',
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Key{key.CodeSemicolon, 0}: ';',
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Key{key.CodeSemicolon, key.ModShift}: ':',
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Key{key.CodeApostrophe, 0}: '\'',
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Key{key.CodeApostrophe, key.ModShift}: '"',
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Key{key.CodeComma, 0}: ',',
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Key{key.CodeComma, key.ModShift}: '<',
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Key{key.CodeFullStop, key.ModShift}: '>',
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Key{key.CodeSlash, 0}: '/',
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Key{key.CodeSlash, key.ModShift}: '?',
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Key{key.CodeBackslash, 0}: '\\',
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Key{key.CodeSpacebar, 0}: ' ',
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Key{key.CodeReturnEnter, 0}: 13,
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Key{key.CodeDeleteBackspace, 0}: 8,
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Key{key.CodeLeftArrow, 0}: 8,
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Key{key.CodeRightArrow, 0}: 21,
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}
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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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case sdl.KMOD_NONE:
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if b, ok := KeyToApple[Key{e.Code, 0}]; ok {
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return b, nil
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}
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if b, ok := KeyToApple[Key{e.Code, M_SHIFT_OR_NONE}]; ok {
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return b, nil
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}
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case sdl.KMOD_LSHIFT, sdl.KMOD_RSHIFT, sdl.KMOD_LSHIFT | sdl.KMOD_RSHIFT:
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if b, ok := KeyToApple[Key{e.Code, M_SHIFT}]; ok {
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return b, nil
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}
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if b, ok := KeyToApple[Key{e.Code, M_SHIFT_OR_NONE}]; ok {
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return b, nil
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}
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case sdl.KMOD_LCTRL, sdl.KMOD_RCTRL, sdl.KMOD_LCTRL | sdl.KMOD_RCTRL:
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if b, ok := KeyToApple[Key{e.Code, M_CTRL}]; ok {
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return b, nil
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}
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}
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*/
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return 0, fmt.Errorf("hi")
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}
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func ProcessEvents(a2 *goapple2.Apple2, w screen.Window, eventChan chan interface{}) (done bool) {
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select {
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case ev := <-eventChan:
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switch e := ev.(type) {
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case lifecycle.Event:
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if e.To == lifecycle.StageDead {
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return true
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}
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case key.Event:
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if e.Code == key.CodeGraveAccent {
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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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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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default:
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}
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/*
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select {
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case _event := <-events:
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switch e := _event.(type) {
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case sdl.QuitEvent:
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return true
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case sdl.KeyboardEvent:
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if e.Type == sdl.KEYDOWN {
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if e.Keysym.Sym == sdl.K_F1 {
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return true
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}
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if e.Keysym.Mod == sdl.KMOD_LCTRL && e.Keysym.Sym == sdl.K_LEFTBRACKET {
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return true
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}
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if key, err := sdlToAppleKeyboard(e.Keysym); err == nil {
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a2.Keypress(key)
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}
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}
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}
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default:
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// Nothing to do here
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}
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*/
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return false
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}
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type ShinyPlotter struct {
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window screen.Window
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buffer screen.Buffer
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oncePerFrame func()
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}
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func (s ShinyPlotter) Plot(pd videoscan.PlotData) {
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y := int(pd.Row)
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x := int(pd.Column) * 14
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data := pd.Data
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for i := 0; i < 14; i++ {
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color1 := color.RGBA{0, 0, 0, 0xff}
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color2 := color.RGBA{0, 0, 0, 0xff}
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if data&1 > 0 {
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color1 = color.RGBA{0x00, 0xff, 0x00, 0xff}
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color2 = color.RGBA{0x00, 0x88, 0x00, 0xff}
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}
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plot(x+i, y*2+0, color1, s.buffer)
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plot(x+i, y*2+1, color2, s.buffer)
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data >>= 1
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}
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}
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func (s ShinyPlotter) OncePerFrame() {
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s.window.Upload(image.Point{0, 0}, s.buffer, s.buffer.Bounds())
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s.window.Publish()
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s.oncePerFrame()
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}
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func typeProgram(a2 *goapple2.Apple2) {
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lines := []string{
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"10 GR",
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"20 POKE -16302,0",
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"30 FOR Y=0 TO 47",
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"40 FOR X=0 TO 39",
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"50 COLOR=INT(RND(1)*16)",
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"60 PLOT X,Y",
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"70 NEXT",
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"80 NEXT",
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"RUN",
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}
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lines = []string{
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"10 HGR2",
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"20 FOR I = 0 to 7",
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"30 HCOLOR=7-I",
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"40 HPLOT I*10, 0 TO 191 + I*10, 191",
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"50 NEXT",
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"RUN",
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}
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for _, line := range lines {
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for _, ch := range line {
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a2.Keypress(byte(ch))
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}
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a2.Keypress(13)
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}
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}
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func main() {
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flag.Parse()
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driver.Main(RunEmulator)
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}
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