func main() {
var file *os.File
var err error
if file, err = os.Open("assets/nestest.nes"); err != nil {
log.Fatal(err)
return
}
var rom *nes.ROM
rom, err = nes.ReadROM(file)
if err != nil {
log.Fatal(err)
return
}
var machine = nes.NewMachine()
machine.Insert(rom)
machine.CPU.Debug = true
machine.CPU.Reset()
machine.CPU.PC = 0xc000
for i := 0; i < 9000; i++ {
machine.CPU.Step()
}
}
func run(filename string) {
var file *os.File
var err error
if file, err = os.Open(filename); err != nil {
log.Fatal(err)
return
}
var rom *nes.ROM
rom, err = nes.ReadROM(file)
if err != nil {
log.Fatal(err)
return
}
var machine = nes.NewMachine()
machine.Insert(rom)
machine.CPU.Debug = false
machine.CPU.Reset()
// First step until the tests start.
for machine.CPU.Memory.Read(0x6000) != 0x80 {
machine.CPU.Step()
}
machine.CPU.Cycle = func() {
for i := 0; i < 3; i++ {
machine.PPU.Step()
}
}
parts := strings.Split(filename, string(filepath.Separator))
fmt.Printf("Running %s tests...\n", parts[len(parts)-1])
// Next step until the tests are finished.
for machine.CPU.Memory.Read(0x6000) > 0x7f {
machine.CPU.Step()
if machine.CPU.Memory.Read(0x6000) == 0x81 {
panic("Need to press reset, but isn't implemented")
}
}
var output = ""
for i := 0; machine.CPU.Memory.Read(cpu.Address(0x6004+i)) != 0x00; i++ {
char := machine.CPU.Memory.Read(cpu.Address(0x6004 + i))
output += fmt.Sprintf("%c", char)
}
if strings.Contains(output, "Passed") {
fmt.Printf("Results: OK\n")
} else {
fmt.Printf("Results: FAIL\n")
fmt.Printf("====\n%s====\n", output)
}
}
func main() {
path := os.Args[1]
var file *os.File
var err error
if file, err = os.Open(path); err != nil {
log.Fatal(err)
return
}
var rom *nes.ROM
rom, err = nes.ReadROM(file)
if err != nil {
log.Fatal(err)
return
}
machine := nes.NewMachine()
machine.Insert(rom)
machine.CPU.Debug = false
machine.CPU.Reset()
machine.CPU.Cycle = func() {
for i := 0; i < 3; i++ {
machine.PPU.Step()
}
}
screen := video.NewVideo()
screen.Init(640, 600)
go func() {
for {
machine.CPU.Step()
frame := new(video.Frame)
frame.Data = machine.PPU.Display
frame.Width = 256
frame.Height = 240
screen.Frames <- frame
}
}()
screen.Loop()
}