mirror of
https://github.com/romychs/Ocean-240.2-Emulator.git
synced 2026-04-21 11:03:21 +03:00
Additional floppy drive C 720k
This commit is contained in:
parent
e28b052cbf
commit
ed43a19a10
@ -15,6 +15,8 @@ type OkEmuConfig struct {
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LogLevel string `yaml:"logLevel"`
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MonitorFile string `yaml:"monitorFile"`
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CPMFile string `yaml:"cpmFile"`
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FloppyB string `yaml:"floppyB"`
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FloppyC string `yaml:"floppyC"`
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}
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var config *OkEmuConfig
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BIN
floppy.okd
BIN
floppy.okd
Binary file not shown.
31
main.go
31
main.go
@ -7,6 +7,7 @@ import (
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"okemu/config"
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"okemu/logger"
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"okemu/okean240"
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"sync/atomic"
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"time"
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"fyne.io/fyne/v2"
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@ -23,10 +24,11 @@ var BuildTime = "2026-03-01"
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//go:embed hex/format.hex
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var serialBytes []byte
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//go:embed bin/TET.COM
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//go:embed bin/FORMAT.COM
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var ramBytes []byte
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var needReset = false
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var fullSpeed atomic.Bool
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func main() {
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@ -107,9 +109,12 @@ func mainWindow(computer *okean240.ComputerType) (*fyne.Window, *canvas.Raster,
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widget.NewButton("RUN", func() {
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computer.SetRamBytes(ramBytes)
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}),
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//widget.NewButton("DUMP", func() {
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// computer.Dump(0x399, 15000)
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//}),
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widget.NewButton("DUMP", func() {
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computer.Dump(0x100, 15000)
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}),
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widget.NewCheck("Full speed", func(b bool) {
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fullSpeed.Store(b)
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}),
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widget.NewSeparator(),
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widget.NewButton("Reset", func() {
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needReset = true
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@ -152,31 +157,31 @@ func screen(computer *okean240.ComputerType, raster *canvas.Raster, label *widge
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}
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}
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const ticksPerTicker uint64 = 3
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const ticksPerTact uint64 = 3
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func emulator(computer *okean240.ComputerType) {
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ticker := time.NewTicker(66 * time.Nanosecond)
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var ticks uint64 = 0
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var nextClock uint64 = ticks + ticksPerTicker
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var nextClock = ticks + ticksPerTact
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//var ticksCPU = 3
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for range ticker.C {
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//for {
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//time.Sleep(133 * time.Nanosecond)
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ticks++
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if ticks%10 == 0 {
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// 1.5 MHz
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computer.TimerClk()
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}
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if ticks >= nextClock {
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nextClock = ticks + computer.Do()*ticksPerTicker
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if fullSpeed.Load() {
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computer.Do()
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} else {
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if ticks >= nextClock {
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nextClock = ticks + computer.Do()*ticksPerTact
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}
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}
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//computer.Do()
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if needReset {
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computer.Reset()
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needReset = false
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}
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//if ticks > ticksCPU {
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//ticksCPU = ticks + computer.Do()*2
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//}
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}
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}
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@ -2,20 +2,25 @@ package okean240
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import (
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_ "embed"
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"encoding/binary"
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"image/color"
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"okemu/config"
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"okemu/okean240/fdc"
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"okemu/okean240/pic"
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"okemu/okean240/pit"
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"okemu/okean240/usart"
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"okemu/z80/js"
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"os"
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//"okemu/z80"
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"okemu/z80/c99"
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//"okemu/z80/js"
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"fyne.io/fyne/v2"
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log "github.com/sirupsen/logrus"
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)
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type ComputerType struct {
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cpu *js.Z80
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cpu *c99.Z80
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memory Memory
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ioPorts [256]byte
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cycles uint64
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@ -73,7 +78,7 @@ func New(cfg *config.OkEmuConfig) *ComputerType {
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c.memory = Memory{}
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c.memory.Init(cfg.MonitorFile, cfg.CPMFile)
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c.cpu = js.New(&c)
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c.cpu = c99.New(&c)
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c.cycles = 0
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c.dd17EnableOut = false
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@ -90,7 +95,7 @@ func New(cfg *config.OkEmuConfig) *ComputerType {
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c.pit = pit.New()
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c.usart = usart.New()
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c.pic = pic.New()
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c.fdc = fdc.New()
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c.fdc = fdc.New(cfg)
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return &c
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}
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@ -110,14 +115,11 @@ func (c *ComputerType) Reset() {
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}
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func (c *ComputerType) Do() uint64 {
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//s := c.cpu.GetState()
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//if s.PC == 0xe0db {
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// log.Debugf("breakpoint")
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//}
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ticks := c.cpu.RunInstruction()
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c.cycles += ticks
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//if c.cpu.PC == 0xFF26 {
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// log.Debugf("%4X: H:%X L:%X A:%X B: %X C: %X D: %X E: %X", c.cpu.PC, c.cpu.H, c.cpu.L, c.cpu.A, c.cpu.B, c.cpu.C, c.cpu.D, c.cpu.E)
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//pc := c.cpu.GetState().PC
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//if pc >= 0xfea3 && pc <= 0xff25 {
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// c.cpu.DebugOutput()
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//}
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return ticks
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}
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@ -245,25 +247,28 @@ func (c *ComputerType) SetRamBytes(bytes []byte) {
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//c.cpu.PC = 0x100
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}
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//func (c *ComputerType) Dump(start uint16, length uint16) {
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// file, err := os.Create("dump.dat")
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// if err != nil {
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// log.Error(err)
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// return
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// }
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// defer func(file *os.File) {
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// err := file.Close()
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// if err != nil {
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// log.Error(err)
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// }
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// }(file)
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//
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// var buffer []byte
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// for addr := 0; addr < 65535; addr++ {
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// buffer = append(buffer, c.memory.MemRead(uint16(addr)))
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// }
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// err = binary.Write(file, binary.LittleEndian, buffer)
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// if err != nil {
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// log.Error("Save memory dump failed:", err)
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// }
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//}
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func (c *ComputerType) Dump(start uint16, length uint16) {
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file, err := os.Create("dump.dat")
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if err != nil {
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log.Error(err)
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return
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}
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defer func(file *os.File) {
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err := file.Close()
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if err != nil {
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log.Error(err)
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}
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}(file)
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var buffer []byte
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for addr := start; addr < start+length; addr++ {
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buffer = append(buffer, c.memory.MemRead(addr))
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}
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_, err = file.Write(buffer)
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err = binary.Write(file, binary.LittleEndian, buffer)
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if err != nil {
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log.Error("Save memory dump failed:", err)
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} else {
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log.Debug("Memory dump saved successfully")
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}
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}
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@ -8,7 +8,9 @@ package fdc
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*/
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import (
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"bytes"
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"encoding/binary"
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"okemu/config"
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"os"
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"slices"
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"strconv"
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@ -18,6 +20,7 @@ import (
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// Floppy parameters
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const (
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TotalDrives = 2
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FloppySizeK = 720
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SectorSize = 512
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SideCount = 2
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@ -69,14 +72,16 @@ type FloppyDriveController struct {
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sectorNo byte
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trackNo byte
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drq byte
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// FloppyStorage
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sectors [SizeInSectors]SectorType
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// FloppyStorage B and C
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sectors [TotalDrives][SizeInSectors]SectorType
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data byte
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status byte
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lastCmd byte
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//curSector *SectorType
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bytePtr uint16
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trackBuffer []byte
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floppyBFile string
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floppyCFile string
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}
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type FloppyDriveControllerInterface interface {
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@ -95,8 +100,12 @@ type FloppyDriveControllerInterface interface {
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Sector() byte
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}
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func getSectorNo(side byte, track byte, sector byte) uint16 {
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return uint16(side)*SectorsPerSide + uint16(track)*SectorPerTrack + uint16(sector) - 1
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}
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func (f *FloppyDriveController) GetSectorNo() uint16 {
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return uint16(f.sideNo)*SectorsPerSide + uint16(f.trackNo)*SectorPerTrack + uint16(f.sectorNo) - 1
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return getSectorNo(f.sideNo, f.trackNo, f.sectorNo)
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}
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func (f *FloppyDriveController) SetFloppy(val byte) {
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@ -104,14 +113,14 @@ func (f *FloppyDriveController) SetFloppy(val byte) {
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f.sideNo = val >> 5 & 0x01
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f.ddEn = val >> 4 & 0x01
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f.init = val >> 3 & 0x01
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f.drive = val >> 2 & 0x01
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f.drive = (^val) >> 2 & 0x01
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f.mot1 = val >> 1 & 0x01
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f.mot0 = val & 0x01
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}
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func (f *FloppyDriveController) GetFloppy() byte {
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// RD: 7-MOTST, 6-SSEL, 5,4-x , 3-DRSEL, 2-MOT1, 1-MOT0, 0-INT
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floppy := f.intRq | (f.mot0 << 1) | (f.mot1 << 2) | (f.drive << 3) | (f.sideNo << 6) | (f.motSt << 7)
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floppy := f.intRq | (f.mot0 << 1) | (f.mot1 << 2) | ((^f.drive & 1) << 3) | (f.sideNo << 6) | (f.motSt << 7)
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return floppy
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}
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@ -119,34 +128,34 @@ func (f *FloppyDriveController) SetCmd(value byte) {
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f.lastCmd = value >> 4
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switch f.lastCmd {
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case CmdRestore:
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log.Debug("CMD Restore (seek trackNo 0)")
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log.Trace("CMD Restore (seek trackNo 0)")
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f.trackNo = 0
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f.status = StatusTR0 | StatusHeadLoaded // TR0 & Head loaded
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case CmdSeek:
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log.Debugf("CMD Seek %x", value&0xf)
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log.Tracef("CMD Seek %x", value&0xf)
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f.status = StatusHeadLoaded
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f.trackNo = f.data
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case CmdStep:
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log.Debugf("CMD Step %x", value&0xf)
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log.Tracef("CMD Step %x", value&0xf)
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f.status = StatusHeadLoaded
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f.trackNo = f.data
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case CmdStepIn:
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log.Debugf("CMD StepIn (Next track) %x", value&0xf)
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log.Tracef("CMD StepIn (Next track) %x", value&0xf)
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f.status = StatusHeadLoaded
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if f.trackNo < TracksCount {
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f.trackNo++
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}
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case CmdStepOut:
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log.Debugf("CMD StepOut (Previous track) %x", value&0xf)
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log.Tracef("CMD StepOut (Previous track) %x", value&0xf)
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f.status = StatusHeadLoaded
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if f.trackNo > 0 {
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f.trackNo--
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}
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case CmdReadSector:
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sectorNo := f.GetSectorNo()
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log.Debugf("CMD Read single sectorNo: %d", sectorNo)
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log.Tracef("CMD Read single sectorNo: %d", sectorNo)
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if sectorNo < SizeInSectors {
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f.trackBuffer = slices.Clone(f.sectors[sectorNo])
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f.trackBuffer = slices.Clone(f.sectors[f.drive][sectorNo])
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f.drq = 1
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f.status = 0x00
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} else {
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@ -157,14 +166,14 @@ func (f *FloppyDriveController) SetCmd(value byte) {
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sectorNo := f.GetSectorNo()
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f.trackBuffer = []byte{}
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for c := 0; c < SectorPerTrack; c++ {
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f.trackBuffer = slices.Concat(f.trackBuffer, f.sectors[sectorNo])
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f.trackBuffer = slices.Concat(f.trackBuffer, f.sectors[f.drive][sectorNo])
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sectorNo++
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}
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f.drq = 1
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f.status = 0x0
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case CmdWriteSector:
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sectorNo := f.GetSectorNo()
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log.Debugf("CMD Write Sector %d", sectorNo)
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log.Tracef("CMD Write Sector %d", sectorNo)
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if sectorNo < SizeInSectors {
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f.bytePtr = 0
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f.drq = 1
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@ -175,12 +184,12 @@ func (f *FloppyDriveController) SetCmd(value byte) {
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f.status = StatusRNF
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}
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case CmdWriteTrack:
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log.Debugf("CMD Write Track %x", f.trackNo)
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log.Tracef("CMD Write Track %x", f.trackNo)
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f.status = 0x00
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f.trackBuffer = []byte{}
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f.drq = 1
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default:
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log.Debugf("Unknown CMD: %x VAL: %x", f.lastCmd, value&0xf)
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log.Errorf("Unknown CMD: %x VAL: %x", f.lastCmd, value&0xf)
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}
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}
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@ -189,7 +198,7 @@ func (f *FloppyDriveController) Status() byte {
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}
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func (f *FloppyDriveController) SetTrackNo(value byte) {
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//log.Debugf("FDC Track: %d", value)
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//log.Tracef("FDC Track: %d", value)
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if value > TracksCount {
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f.status |= 0x10 /// RNF
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log.Error("Track not found!")
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@ -199,17 +208,17 @@ func (f *FloppyDriveController) SetTrackNo(value byte) {
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}
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func (f *FloppyDriveController) SetSectorNo(value byte) {
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//log.Debugf("FDC Sector: %d", value)
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//log.Tracef("FDC Sector: %d", value)
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if value > SectorPerTrack {
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f.status |= 0x10
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log.Error("Record not found!")
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log.Errorf("Record not found %d!", value)
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} else {
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f.sectorNo = value
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}
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}
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func (f *FloppyDriveController) SetData(value byte) {
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//log.Debugf("FCD Data: %d", value)
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//log.Tracef("FCD Data: %d", value)
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if f.lastCmd == CmdWriteTrack {
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if len(f.trackBuffer) < TrackBufferSize {
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f.trackBuffer = append(f.trackBuffer, value)
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@ -217,6 +226,7 @@ func (f *FloppyDriveController) SetData(value byte) {
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f.status = 0x00
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} else {
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//f.dump()
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f.writeTrack()
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f.drq = 0
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f.status = 0x00
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f.lastCmd = CmdNoCommand
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@ -232,13 +242,44 @@ func (f *FloppyDriveController) SetData(value byte) {
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}
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if len(f.trackBuffer) == SectorSize {
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f.drq = 0
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f.sectors[f.GetSectorNo()] = slices.Clone(f.trackBuffer)
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f.sectors[f.drive][f.GetSectorNo()] = slices.Clone(f.trackBuffer)
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f.lastCmd = CmdNoCommand
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}
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}
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f.data = value
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}
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const SectorInfoSize = 626
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const SectorInfoOffset = 0x0092
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const TrackNoOffset = 0x0010
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const SideNoOffset = 0x0011
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const SectorNoOffset = 0x0012
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const SectorLengthOffset = 0x0013
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const SectorDataOffset = 0x003b
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var SectorLengths = []int{128, 256, 512, 1024}
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func (f *FloppyDriveController) writeTrack() {
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// skip header
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ptr := SectorInfoOffset
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// repeat for every sector on track
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for sec := 0; sec < SectorPerTrack; sec++ {
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// get info from header
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trackNo := f.trackBuffer[ptr+TrackNoOffset]
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sideNo := f.trackBuffer[ptr+SideNoOffset]
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sectorNo := f.trackBuffer[ptr+SectorNoOffset]
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sectorLength := SectorLengths[f.trackBuffer[ptr+SectorLengthOffset]&0x03]
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// get sector data
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sectorData := f.trackBuffer[ptr+SectorDataOffset : ptr+SectorDataOffset+sectorLength]
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absSector := getSectorNo(sideNo, trackNo, sectorNo)
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log.Debugf("Write Drive: %d; side:%d; T: %d S: %d Len: %d Data: [%X..%X]; Abs sector: %d", f.drive, sideNo, trackNo, sectorNo, len(sectorData), sectorData[0], sectorData[len(sectorData)-1], absSector)
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// write data to sector buffer
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f.sectors[f.drive][absSector] = slices.Clone(sectorData)
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// shift pointer to next sector info block
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ptr += SectorInfoSize
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}
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}
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func (f *FloppyDriveController) Data() byte {
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switch f.lastCmd {
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case CmdReadSector, CmdReadSectorMulti:
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@ -263,90 +304,48 @@ func (f *FloppyDriveController) Drq() byte {
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}
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func (f *FloppyDriveController) LoadFloppy() {
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log.Debug("Load Floppy content.")
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file, err := os.Open("floppy.okd")
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if err != nil {
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log.Error(err)
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return
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}
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defer func(file *os.File) {
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err := file.Close()
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if err != nil {
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log.Error(err)
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}
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}(file)
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for sector := 0; sector < SizeInSectors; sector++ {
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var n int
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n, err = file.Read(f.sectors[sector])
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if n != SectorSize {
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log.Error("Load floppy error, sector size: %d <> %d", n, SectorSize)
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}
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// err = binary.Read(file, binary.LittleEndian, f.sectors[sector])
|
||||
if err != nil {
|
||||
log.Error("Load floppy content failed:", err)
|
||||
break
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
log.Debug("Load Floppy B")
|
||||
loadFloppy(&f.sectors[0], f.floppyBFile)
|
||||
log.Debug("Load Floppy C")
|
||||
loadFloppy(&f.sectors[1], f.floppyCFile)
|
||||
}
|
||||
|
||||
func (f *FloppyDriveController) SaveFloppy() {
|
||||
log.Debug("Save Floppy content.")
|
||||
file, err := os.Create("floppy.okd")
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
return
|
||||
}
|
||||
defer func(file *os.File) {
|
||||
err := file.Close()
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
}
|
||||
}(file)
|
||||
|
||||
// Write the struct to the file in little-endian byte order
|
||||
for sector := 0; sector < SizeInSectors; sector++ {
|
||||
var n int
|
||||
n, err = file.Write(f.sectors[sector])
|
||||
if n != SectorSize {
|
||||
log.Errorf("Save floppy error, sector %d size: %d <> %d", sector, n, SectorSize)
|
||||
}
|
||||
if err != nil {
|
||||
log.Error("Save floppy content failed:", err)
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
log.Debug("Save Floppy B")
|
||||
saveFloppy(&f.sectors[0], f.floppyBFile)
|
||||
log.Debug("Save Floppy C")
|
||||
saveFloppy(&f.sectors[1], f.floppyCFile)
|
||||
}
|
||||
|
||||
func New() *FloppyDriveController {
|
||||
sec := [SizeInSectors]SectorType{}
|
||||
for i := 0; i < SizeInSectors; i++ {
|
||||
sec[i] = make([]byte, SectorSize)
|
||||
for s := 0; s < SectorSize; s++ {
|
||||
sec[i][s] = 0xE5
|
||||
func New(conf *config.OkEmuConfig) *FloppyDriveController {
|
||||
sec := [2][SizeInSectors]SectorType{}
|
||||
// for each drive
|
||||
for d := 0; d < TotalDrives; d++ {
|
||||
// for each sector
|
||||
for i := 0; i < SizeInSectors; i++ {
|
||||
sec[d][i] = bytes.Repeat([]byte{0xe5}, SectorSize)
|
||||
}
|
||||
}
|
||||
return &FloppyDriveController{
|
||||
sideNo: 0,
|
||||
ddEn: 0,
|
||||
init: 0,
|
||||
drive: 0,
|
||||
mot1: 0,
|
||||
mot0: 0,
|
||||
intRq: 0,
|
||||
motSt: 0,
|
||||
drq: 0,
|
||||
lastCmd: 0xff,
|
||||
sectors: sec,
|
||||
bytePtr: 0xffff,
|
||||
sideNo: 0,
|
||||
ddEn: 0,
|
||||
init: 0,
|
||||
drive: 0,
|
||||
mot1: 0,
|
||||
mot0: 0,
|
||||
intRq: 0,
|
||||
motSt: 0,
|
||||
drq: 0,
|
||||
lastCmd: 0xff,
|
||||
sectors: sec,
|
||||
bytePtr: 0xffff,
|
||||
floppyBFile: conf.FloppyB,
|
||||
floppyCFile: conf.FloppyC,
|
||||
}
|
||||
}
|
||||
|
||||
func (f *FloppyDriveController) dump() {
|
||||
log.Debug("Dump Buffer content.")
|
||||
log.Trace("Dump Buffer content.")
|
||||
file, err := os.Create("track-" + strconv.Itoa(int(f.trackNo)) + ".dat")
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
@ -375,3 +374,58 @@ func (f *FloppyDriveController) Sector() byte {
|
||||
}
|
||||
|
||||
//
|
||||
|
||||
func loadFloppy(sectors *[SizeInSectors]SectorType, fileName string) {
|
||||
log.Debugf("Load Floppy content from file %s.", fileName)
|
||||
file, err := os.Open(fileName)
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
return
|
||||
}
|
||||
|
||||
defer func(file *os.File) {
|
||||
err := file.Close()
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
}
|
||||
}(file)
|
||||
|
||||
for sector := 0; sector < SizeInSectors; sector++ {
|
||||
var n int
|
||||
n, err = file.Read(sectors[sector])
|
||||
if n != SectorSize {
|
||||
log.Error("Load floppy error, sector size: %d <> %d", n, SectorSize)
|
||||
}
|
||||
if err != nil {
|
||||
log.Error("Load floppy content failed:", err)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func saveFloppy(sectors *[SizeInSectors]SectorType, fileName string) {
|
||||
log.Debugf("Save Floppy to file %s.", fileName)
|
||||
file, err := os.Create(fileName)
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
return
|
||||
}
|
||||
defer func(file *os.File) {
|
||||
err := file.Close()
|
||||
if err != nil {
|
||||
log.Error(err)
|
||||
}
|
||||
}(file)
|
||||
|
||||
for sector := 0; sector < SizeInSectors; sector++ {
|
||||
var n int
|
||||
n, err = file.Write(sectors[sector])
|
||||
if n != SectorSize {
|
||||
log.Errorf("Save floppy error, sector %d size: %d <> %d", sector, n, SectorSize)
|
||||
}
|
||||
if err != nil {
|
||||
log.Error("Save floppy content failed:", err)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -2,3 +2,5 @@ logFile: "okemu.log"
|
||||
logLevel: "info"
|
||||
monitorFile: "rom/MON_r8_9c6c6546.bin"
|
||||
cpmFile: "rom/CPM_r8_bc0695e4.bin"
|
||||
floppyB: "floppy/floppyB.okd"
|
||||
floppyC: "floppy/floppyC.okd"
|
||||
@ -155,7 +155,7 @@ func (z *Z80) updateXY(result byte) {
|
||||
z.xf = result&0x08 != 0
|
||||
}
|
||||
|
||||
func (z *Z80) debugOutput() {
|
||||
func (z *Z80) DebugOutput() {
|
||||
log.Debugf("PC: %04X, AF: %04X, BC: %04X, DE: %04X, HL: %04X, SP: %04X, IX: %04X, IY: %04X, I: %02X, R: %02X",
|
||||
z.pc, (uint16(z.a)<<8)|uint16(z.get_f()), z.get_bc(), z.get_de(), z.get_hl(), z.sp,
|
||||
z.ix, z.iy, z.i, z.r)
|
||||
@ -163,3 +163,7 @@ func (z *Z80) debugOutput() {
|
||||
log.Debugf("\t(%02X %02X %02X %02X), cyc: %d\n", z.rb(z.pc), z.rb(z.pc+1),
|
||||
z.rb(z.pc+2), z.rb(z.pc+3), z.cyc)
|
||||
}
|
||||
|
||||
func (z *Z80) Reset() {
|
||||
|
||||
}
|
||||
|
||||
@ -22,6 +22,8 @@ type CPUInterface interface {
|
||||
GetState() *Z80CPU
|
||||
// SetState Set current CPU state
|
||||
SetState(state *Z80CPU)
|
||||
// DebugOutput out current CPU state
|
||||
DebugOutput()
|
||||
}
|
||||
|
||||
// FlagsType - Processor flags
|
||||
|
||||
Loading…
Reference in New Issue
Block a user