add a couple disks

pull/2/head
Zellyn Hunter 2021-06-25 22:33:11 -04:00
parent f09e8f47f1
commit 9c66e2c5e6
51 changed files with 1477 additions and 1221 deletions

9
.vscode/settings.json vendored Normal file
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@ -0,0 +1,9 @@
{
"filewatcher.commands": [
{
"match": "\\.go",
"cmd": "echo '${file} changed'",
"event": "onFileChange",
},
]
}

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@ -32,7 +32,7 @@ Discussion/support is in
[#apple2 on the retrocomputing Slack](https://retrocomputing.slack.com/messages/apple2/)
(invites [here](https://retrocomputing.herokuapp.com)).
### Goals
# Goals
Eventually, it aims to be a comprehensive disk image manipulation
tool, but for now only some parts work.
@ -59,7 +59,7 @@ Current disk operations supported:
| init | ✗ | ✗ | ✗ |
| defrag | ✗ | ✗ | ✗ |
### Installing/updating
# Installing/updating
Assuming you have Go installed, run `go get -u github.com/zellyn/diskii`
You can also download automatically-built binaries from the
@ -68,7 +68,7 @@ page](https://github.com/zellyn/diskii/releases/latest). If you
need binaries for a different architecture, please send a pull
request or open an issue.
### Short-term TODOs/roadmap/easy ways to contribute
# Short-term TODOs/roadmap/easy ways to contribute
My rough TODO list (apart from anything marked (✗) in the disk
operations matrix is listed below. Anything that an actual user needs
@ -86,7 +86,7 @@ will be likely to get priority.
- [ ] Add basic ProDOS structures
- [ ] Add ProDOS support
### Related tools
# Related tools
- http://a2ciderpress.com/ - the great grandaddy of them all. Windows only, unless you Wine
- http://retrocomputingaustralia.com/rca-downloads/ Michael Mulhern's MacOS package of CiderPress
@ -107,3 +107,52 @@ will be likely to get priority.
- https://github.com/slotek/apple2-disk-util - ruby
- https://github.com/slotek/dsk2nib - C
- https://github.com/robmcmullen/atrcopy - dos3.3, python
# Notes
## Disk formats
- `.do`
- `.po`
- `.dsk` - could be DO or PO.
DOS 3.2.1: the 13 sectors are physically skewed on disk.
DOS 3.3+: the 16 physical sectors are stored in ascending order on disk, not physically skewed at all. The
| Logical Sector | DOS 3.3 Physical Sector | ProDOS Physical Sector |
| --------------- | -------------- | ------------- |
| 0 | 0 | x |
| 1 | D | x |
| 2 | B | x |
| 3 | 9 | x |
| 4 | 7 | x |
| 5 | 5 | x |
| 6 | 3 | x |
| 7 | 1 | x |
| 8 | E | x |
| 9 | C | x |
| A | A | x |
| B | 8 | x |
| C | 6 | x |
| D | 4 | x |
| E | 2 | x |
| F | F | x |
### RWTS - DOS
Sector mapping:
http://www.textfiles.com/apple/ANATOMY/rwts.s.txt and search for INTRLEAV
Mapping from specified sector to physical sector (the reverse of what the comment says):
`00 0D 0B 09 07 05 03 01 0E 0C 0A 08 06 04 02 0F`
So if you write to "T0S1" with DOS RWTS, it ends up in physical sector 0D.
## Commandline examples for thinking about how it should work
diskii ls dos33.dsk
diskii --order=do ls dos33.dsk
diskii --order=do --system=nakedos ls nakedos.dsk

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@ -5,7 +5,7 @@ package applesoft
import (
"testing"
"github.com/zellyn/diskii/lib/basic"
"github.com/zellyn/diskii/basic"
)
// helloBinary is a simple basic program used for testing. Listing

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@ -5,7 +5,7 @@ package integer
import (
"testing"
"github.com/zellyn/diskii/lib/basic"
"github.com/zellyn/diskii/basic"
)
// helloBinary is a simple basic program used for testing. Listing

57
build Executable file
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@ -0,0 +1,57 @@
#!/usr/bin/env bash
set -euo pipefail
export ACME="$HOME/gh/acme/ACME_Lib"
ACME_BIN="$HOME/gh/acme/acme"
$ACME_BIN -o writetest.o -r writetest.lst writetest.asm
# cp data/disks/dos33mst.dsk writetest.dsk
# diskii put -f writetest.dsk writetest writetest.o
# Also run mame? (set MAMEDIR and MAMEBIN to your local variant)
[[ -z "${MAMEDIR-}" ]] && MAMEDIR="/Users/zellyn/Library/Application Support/Ample"
[[ -z "${MAMEBIN-}" ]] && MAMEBIN="/Applications/Ample.app/Contents/MacOS/mame64"
# Write audit.o into an OpenEmulator config?
[[ -z "${TMPLS-}" ]] && TMPLS=~/gh/OpenEmulator-OSX/modules/libemulation/res/templates
DSK=$(realpath ./audit.dsk)
case "${1-none}" in
"2ee")
# mame64 apple2ee -skip_gameinfo -nosamples -window -resolution 1120x840 -flop1 /Users/zellyn/gh/a2audit/audit/audit.dsk
(cd "$MAMEDIR"; "$MAMEBIN" apple2ee -window -flop1 "$DSK" -skip_gameinfo)
;;
"2e")
(cd "$MAMEDIR"; "$MAMEBIN" apple2e -window -flop1 "$DSK" -skip_gameinfo)
;;
"2p")
(cd "$MAMEDIR"; "$MAMEBIN" apple2p -window -flop1 "$DSK" -skip_gameinfo)
;;
"2")
(cd "$MAMEDIR"; "$MAMEBIN" apple2 -window -flop1 "$DSK" -skip_gameinfo)
;;
"2ee-d")
(cd "$MAMEDIR"; "$MAMEBIN" apple2ee -window -flop1 "$DSK" -skip_gameinfo -debug)
;;
"2e-d")
(cd "$MAMEDIR"; "$MAMEBIN" apple2e -window -flop1 "$DSK" -skip_gameinfo -debug)
;;
"2p-d")
(cd "$MAMEDIR"; "$MAMEBIN" apple2p -window -flop1 "$DSK" -skip_gameinfo -debug)
;;
"2-d")
(cd "$MAMEDIR"; "$MAMEBIN" apple2 -window -flop1 "$DSK" -skip_gameinfo -debug)
;;
"oe")
(head -c 24576 /dev/zero; cat audit.o; head -c 65536 /dev/zero) | head -c 65536 > $TMPLS/Apple\ II/Apple\ IIe-test.emulation/appleIIe.mainRam.bin
sed -e 's|<property name="pc" value="0x...."/>|<property name="pc" value="0x6000"/>|' $TMPLS/Apple\ II/Apple\ IIe.xml > $TMPLS/Apple\ II/Apple\ IIe-test.emulation/info.xml
;;
"none")
;;
*)
echo Options: 2ee, 2e, 2p, 2, 2ee-d, 2e-d, 2p-d, 2-d
esac
true # Signal success (since we had a bunch of conditionals that can return false status).

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@ -7,9 +7,9 @@ import (
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/basic"
"github.com/zellyn/diskii/lib/basic/applesoft"
"github.com/zellyn/diskii/lib/helpers"
"github.com/zellyn/diskii/basic"
"github.com/zellyn/diskii/basic/applesoft"
"github.com/zellyn/diskii/helpers"
)
// applesoftCmd represents the applesoft command

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@ -6,54 +6,34 @@ import (
"fmt"
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
"github.com/zellyn/diskii/disk"
"github.com/zellyn/diskii/types"
)
var shortnames bool // flag for whether to print short filenames
var debug bool
// catalogCmd represents the cat command, used to catalog a disk or
// directory.
var catalogCmd = &cobra.Command{
Use: "catalog",
Aliases: []string{"cat", "ls"},
Short: "print a list of files",
Long: `Catalog a disk or subdirectory.`,
Run: func(cmd *cobra.Command, args []string) {
if err := runCat(args); err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(-1)
}
},
type LsCmd struct {
ShortNames bool `kong:"short='s',help='Whether to print short filenames (only makes a difference on Super-Mon disks).'"`
Image *os.File `kong:"arg,required,help='Disk/device image to read.'"`
Directory string `kong:"arg,optional,help='Directory to list (ProDOS only).'"`
}
func init() {
RootCmd.AddCommand(catalogCmd)
catalogCmd.Flags().BoolVarP(&shortnames, "shortnames", "s", false, "whether to print short filenames (only makes a difference on Super-Mon disks)")
catalogCmd.Flags().BoolVarP(&debug, "debug", "d", false, "pring debug information")
}
// runCat performs the actual catalog logic.
func runCat(args []string) error {
if len(args) < 1 || len(args) > 2 {
return fmt.Errorf("cat expects a disk image filename, and an optional subdirectory")
}
op, err := disk.Open(args[0])
func (l *LsCmd) Run(globals *types.Globals) error {
op, order, err := disk.OpenImage(l.Image, globals)
if err != nil {
return err
}
if debug {
fmt.Printf("Got disk of type %q with underlying sector/block order %q.\n", op.Name(), op.Order())
if globals.Debug {
fmt.Fprintf(os.Stderr, "Opened disk with order %q, system %q\n", order, op.Name())
}
subdir := ""
if len(args) == 2 {
if l.Directory != "" {
if !op.HasSubdirs() {
return fmt.Errorf("Disks of type %q cannot have subdirectories", op.Name())
}
subdir = args[1]
}
fds, err := op.Catalog(subdir)
fds, err := op.Catalog(l.Directory)
if err != nil {
return err
}

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@ -2,14 +2,7 @@
package cmd
import (
"fmt"
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
)
/*
var missingok bool // flag for whether to consider deleting a nonexistent file okay
// deleteCmd represents the delete command, used to delete a file.
@ -62,3 +55,4 @@ func runDelete(args []string) error {
}
return nil
}
*/

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@ -2,14 +2,7 @@
package cmd
import (
"fmt"
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
)
/*
// dumpCmd represents the dump command, used to dump the raw contents
// of a file.
var dumpCmd = &cobra.Command{
@ -48,3 +41,4 @@ func runDump(args []string) error {
os.Stdout.Write(file.Data)
return nil
}
*/

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@ -7,7 +7,7 @@ import (
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
"github.com/zellyn/diskii/types"
)
var all bool // flag for whether to show all filetypes
@ -36,7 +36,7 @@ func runFiletypes(args []string) error {
if len(args) != 0 {
return fmt.Errorf("filetypes expects no arguments")
}
for _, typ := range disk.FiletypeNames(all) {
for _, typ := range types.FiletypeNames(all) {
fmt.Println(typ)
}
return nil

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@ -2,15 +2,7 @@
package cmd
import (
"fmt"
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
"github.com/zellyn/diskii/lib/supermon"
)
/*
// nakedosCmd represents the nakedos command
var nakedosCmd = &cobra.Command{
Use: "nakedos",
@ -123,3 +115,4 @@ func runMkhello(args []string) error {
}
return nil
}
*/

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@ -2,15 +2,7 @@
package cmd
import (
"fmt"
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
"github.com/zellyn/diskii/lib/helpers"
)
/*
var filetypeName string // flag for file type
var overwrite bool // flag for whether to overwrite
@ -81,3 +73,4 @@ func runPut(args []string) error {
}
return nil
}
*/

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@ -7,7 +7,6 @@ import (
"os"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var cfgFile string
@ -30,32 +29,3 @@ func Execute() {
os.Exit(-1)
}
}
func init() {
cobra.OnInitialize(initConfig)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags, which, if defined here,
// will be global for your application.
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.diskii.yaml)")
// Cobra also supports local flags, which will only run
// when this action is called directly.
// RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
if cfgFile != "" { // enable ability to specify config file via flag
viper.SetConfigFile(cfgFile)
}
viper.SetConfigName(".diskii") // name of config file (without extension)
viper.AddConfigPath("$HOME") // adding home directory as first search path
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
fmt.Println("Using config file:", viper.ConfigFileUsed())
}
}

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@ -7,8 +7,8 @@ import (
"os"
"github.com/spf13/cobra"
"github.com/zellyn/diskii/lib/disk"
"github.com/zellyn/diskii/lib/helpers"
"github.com/zellyn/diskii/disk"
"github.com/zellyn/diskii/helpers"
)
var sdAddress uint16 // flag for address to load at
@ -87,16 +87,16 @@ func runMkSd(args []string) error {
contents = append(contents, 0)
}
sd := disk.Empty()
diskbytes := make([]byte, disk.FloppyDiskBytes)
var track, sector byte
for i := 0; i < len(contents); i += 256 {
sector += 2
if sector >= sd.Sectors() {
sector = (sd.Sectors() + 1) - sector
if sector >= disk.FloppySectors {
sector = (disk.FloppySectors + 1) - sector
if sector == 0 {
track++
if track >= sd.Tracks() {
if track >= disk.FloppyTracks {
return fmt.Errorf("ran out of tracks")
}
}
@ -104,7 +104,7 @@ func runMkSd(args []string) error {
address := int(sdAddress) + i
loader = append(loader, byte(address>>8))
if err := sd.WritePhysicalSector(track, sector, contents[i:i+256]); err != nil {
if err := disk.WriteSector(diskbytes, track, sector, contents[i:i+256]); err != nil {
return err
}
}
@ -114,7 +114,7 @@ func runMkSd(args []string) error {
loader = append(loader, 0)
}
if err := sd.WritePhysicalSector(0, 0, loader); err != nil {
if err := disk.WriteSector(diskbytes, 0, 0, loader); err != nil {
return err
}
@ -122,7 +122,8 @@ func runMkSd(args []string) error {
if err != nil {
return err
}
_, err = sd.Write(f)
return fmt.Errorf("write not implemented")
//_, err = sd.Write(f)
if err != nil {
return err
}

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@ -10,14 +10,15 @@ import (
"io/ioutil"
)
// A ProDOS block.
type Block [256]byte
// Dev represents a .po disk image.
type Dev struct {
data []byte // The actual data in the file
blocks uint16 // Number of blocks
}
var _ BlockDevice = (*Dev)(nil)
// LoadDev loads a .po image from a file.
func LoadDev(filename string) (Dev, error) {
bb, err := ioutil.ReadFile(filename)

48
disk/disk.go Normal file
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@ -0,0 +1,48 @@
// Copyright © 2016 Zellyn Hunter <zellyn@gmail.com>
// Package disk contains routines for reading and writing various disk
// file formats.
package disk
// Various DOS33 disk characteristics.
const (
FloppyTracks = 35
FloppySectors = 16 // Sectors per track
// FloppyDiskBytes is the number of bytes on a DOS 3.3 disk.
FloppyDiskBytes = 143360 // 35 tracks * 16 sectors * 256 bytes
FloppyTrackBytes = 256 * FloppySectors // Bytes per track
)
// Dos33LogicalToPhysicalSectorMap maps logical sector numbers to physical ones.
// See [UtA2 9-42 - Read Routines].
var Dos33LogicalToPhysicalSectorMap = []int{
0x00, 0x0D, 0x0B, 0x09, 0x07, 0x05, 0x03, 0x01,
0x0E, 0x0C, 0x0A, 0x08, 0x06, 0x04, 0x02, 0x0F,
}
// Dos33PhysicalToLogicalSectorMap maps physical sector numbers to logical ones.
// See [UtA2 9-42 - Read Routines].
var Dos33PhysicalToLogicalSectorMap = []int{
0x00, 0x07, 0x0E, 0x06, 0x0D, 0x05, 0x0C, 0x04,
0x0B, 0x03, 0x0A, 0x02, 0x09, 0x01, 0x08, 0x0F,
}
// ProDOSLogicalToPhysicalSectorMap maps logical sector numbers to pysical ones.
// See [UtA2e 9-43 - Sectors vs. Blocks].
var ProDOSLogicalToPhysicalSectorMap = []int{
0x00, 0x02, 0x04, 0x06, 0x08, 0x0A, 0x0C, 0x0E,
0x01, 0x03, 0x05, 0x07, 0x09, 0x0B, 0x0D, 0x0F,
}
// ProDosPhysicalToLogicalSectorMap maps physical sector numbers to logical ones.
// See [UtA2e 9-43 - Sectors vs. Blocks].
var ProDosPhysicalToLogicalSectorMap = []int{
0x00, 0x08, 0x01, 0x09, 0x02, 0x0A, 0x03, 0x0B,
0x04, 0x0C, 0x05, 0x0D, 0x06, 0x0E, 0x07, 0x0F,
}
// TrackSector is a pair of track/sector bytes.
type TrackSector struct {
Track byte
Sector byte
}

135
disk/marshal.go Normal file
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@ -0,0 +1,135 @@
// Copyright © 2016 Zellyn Hunter <zellyn@gmail.com>
// marshal.go contains helpers for marshaling sector structs to/from
// disk and block structs to/from devices.
package disk
import "fmt"
// BlockDevice is the interface used to read and write devices by
// logical block number.
// SectorSource is the interface for types that can marshal to sectors.
type SectorSource interface {
// ToSector marshals the sector struct to exactly 256 bytes.
ToSector() ([]byte, error)
// GetTrack returns the track that a sector struct was loaded from.
GetTrack() byte
// GetSector returns the sector that a sector struct was loaded from.
GetSector() byte
}
// SectorSink is the interface for types that can unmarshal from sectors.
type SectorSink interface {
// FromSector unmarshals the sector struct from bytes. Input is
// expected to be exactly 256 bytes.
FromSector(data []byte) error
// SetTrack sets the track that a sector struct was loaded from.
SetTrack(track byte)
// SetSector sets the sector that a sector struct was loaded from.
SetSector(sector byte)
}
// UnmarshalLogicalSector reads a sector from a disk image, and unmarshals it
// into a SectorSink, setting its track and sector.
func UnmarshalLogicalSector(diskbytes []byte, ss SectorSink, track, sector byte) error {
bytes, err := ReadSector(diskbytes, track, sector)
if err != nil {
return err
}
if err := ss.FromSector(bytes); err != nil {
return err
}
ss.SetTrack(track)
ss.SetSector(sector)
return nil
}
// ReadSector just reads 256 bytes from the given track and sector.
func ReadSector(diskbytes []byte, track, sector byte) ([]byte, error) {
start := int(track)*FloppyTrackBytes + int(sector)*256
end := start + 256
if len(diskbytes) < end {
return nil, fmt.Errorf("cannot read track %d/sector %d (bytes %d-%d) from disk of length %d", track, sector, start, end, len(diskbytes))
}
bytes := make([]byte, 256)
copy(bytes, diskbytes[start:end])
return bytes, nil
}
// MarshalLogicalSector marshals a SectorSource to its track/sector on a disk
// image.
func MarshalLogicalSector(diskbytes []byte, ss SectorSource) error {
track := ss.GetTrack()
sector := ss.GetSector()
bytes, err := ss.ToSector()
if err != nil {
return err
}
return WriteSector(diskbytes, track, sector, bytes)
}
// WriteSector writes 256 bytes to the given track and sector.
func WriteSector(diskbytes []byte, track, sector byte, data []byte) error {
if len(data) != 256 {
return fmt.Errorf("call to writeSector with len(data)==%d; want 256", len(data))
}
start := int(track)*FloppyTrackBytes + int(sector)*256
end := start + 256
if len(diskbytes) < end {
return fmt.Errorf("cannot write track %d/sector %d (bytes %d-%d) to disk of length %d", track, sector, start, end, len(diskbytes))
}
copy(diskbytes[start:end], data)
return nil
}
// BlockSource is the interface for types that can marshal to blocks.
type BlockSource interface {
// ToBlock marshals the block struct to exactly 512 bytes.
ToBlock() (Block, error)
// GetBlock returns the index that a block struct was loaded from.
GetBlock() uint16
}
// BlockSink is the interface for types that can unmarshal from blocks.
type BlockSink interface {
// FromBlock unmarshals the block struct from a Block. Input is
// expected to be exactly 512 bytes.
FromBlock(block Block) error
// SetBlock sets the index that a block struct was loaded from.
SetBlock(index uint16)
}
// UnmarshalBlock reads a block from a block device, and unmarshals it into a
// BlockSink, setting its index.
func UnmarshalBlock(diskbytes []byte, bs BlockSink, index uint16) error {
start := int(index) * 512
end := start + 512
if len(diskbytes) < end {
return fmt.Errorf("device too small to read block %d", index)
}
var block Block
copy(block[:], diskbytes[start:end])
if err := bs.FromBlock(block); err != nil {
return err
}
bs.SetBlock(index)
return nil
}
// MarshalBlock marshals a BlockSource to its block on a block device.
func MarshalBlock(diskbytes []byte, bs BlockSource) error {
index := bs.GetBlock()
block, err := bs.ToBlock()
if err != nil {
return err
}
start := int(index) * 512
end := start + 512
if len(diskbytes) < end {
return fmt.Errorf("device too small to write block %d", index)
}
copy(diskbytes[start:end], block[:])
return nil
}

148
disk/open.go Normal file
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@ -0,0 +1,148 @@
package disk
import (
"fmt"
"io"
"os"
"path"
"strings"
"github.com/zellyn/diskii/types"
)
var diskOrdersByName map[string][]int = map[string][]int{
"do": Dos33LogicalToPhysicalSectorMap,
"po": ProDOSLogicalToPhysicalSectorMap,
"raw": {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF},
}
// OpenImage attempts to open an image on disk, using the provided ordering and system type.
func OpenImage(file *os.File, globals *types.Globals) (types.Operator, string, error) {
bb, err := io.ReadAll(file)
if err != nil {
return nil, "", err
}
if len(bb) == FloppyDiskBytes {
return openDoOrPo(bb, globals, strings.ToLower(path.Ext(file.Name())))
}
return nil, "", fmt.Errorf("OpenImage not implemented yet for non-disk-sized images")
}
func openDoOrPo(diskbytes []byte, globals *types.Globals, ext string) (types.Operator, string, error) {
var factories []types.OperatorFactory
for _, factory := range globals.DiskOperatorFactories {
if globals.System == "auto" || globals.System == factory.Name() {
factories = append(factories, factory)
}
}
if len(factories) == 0 {
return nil, "", fmt.Errorf("cannot find disk system with name %q", globals.System)
}
orders := []string{globals.Order}
switch globals.Order {
case "do", "po":
// nothing more
case "auto":
switch ext {
case ".po":
orders = []string{"po"}
case ".do":
orders = []string{"do"}
case ".dsk", "":
orders = []string{"do", "po"}
default:
return nil, "", fmt.Errorf("unknown disk image extension: %q", ext)
}
default:
return nil, "", fmt.Errorf("disk order %q invalid for %d-byte disk images", globals.Order, FloppyDiskBytes)
}
for _, order := range orders {
swizzled, err := Swizzle(diskbytes, diskOrdersByName[order])
if err != nil {
return nil, "", err
}
for _, factory := range factories {
if len(orders) == 1 && globals.System != "auto" {
if globals.Debug {
fmt.Fprintf(os.Stderr, "Attempting to open with order=%s, system=%s.\n", order, factory.Name())
}
op, err := factory.Operator(swizzled, globals.Debug)
if err != nil {
return nil, "", err
}
return op, order, nil
}
if globals.Debug {
fmt.Fprintf(os.Stderr, "Testing whether order=%s, system=%s seems to match.\n", order, factory.Name())
}
if factory.SeemsToMatch(swizzled, globals.Debug) {
op, err := factory.Operator(swizzled, globals.Debug)
if err == nil {
return op, order, nil
}
if globals.Debug {
fmt.Fprintf(os.Stderr, "Got error opening with order=%s, system=%s: %v\n", order, factory.Name(), err)
}
}
}
}
return nil, "", fmt.Errorf("openDoOrPo not implemented yet")
}
// Swizzle changes the sector ordering according to the order parameter. If
// order is nil, it leaves the order unchanged.
func Swizzle(diskimage []byte, order []int) ([]byte, error) {
if len(diskimage) != FloppyDiskBytes {
return nil, fmt.Errorf("swizzling only works on disk images of %d bytes; got %d", FloppyDiskBytes, len(diskimage))
}
if err := validateOrder(order); err != nil {
return nil, fmt.Errorf("called Swizzle with weird order: %w", err)
}
result := make([]byte, FloppyDiskBytes)
for track := 0; track < FloppyTracks; track++ {
for sector := 0; sector < FloppySectors; sector++ {
data, err := ReadSector(diskimage, byte(track), byte(sector))
if err != nil {
return nil, err
}
err = WriteSector(result, byte(track), byte(order[sector]), data)
if err != nil {
return nil, err
}
}
}
return result, nil
}
func UnSwizzle(diskimage []byte, order []int) ([]byte, error) {
if err := validateOrder(order); err != nil {
return nil, fmt.Errorf("called UnSwizzle with weird order: %w", err)
}
reverseOrder := make([]int, FloppySectors)
for index, mapping := range order {
reverseOrder[mapping] = index
}
return Swizzle(diskimage, reverseOrder)
}
// validateOrder validates that an order mapping is valid, and maps [0,15] onto
// [0,15] without repeats.
func validateOrder(order []int) error {
if len(order) != FloppySectors {
return fmt.Errorf("len=%d; want %d: %v", len(order), FloppySectors, order)
}
seen := make(map[int]bool)
for i, mapping := range order {
if mapping < 0 || mapping > 15 {
return fmt.Errorf("mapping %d:%d is not in [0,15]: %v", i, mapping, order)
}
if seen[mapping] {
return fmt.Errorf("mapping %d:%d is a repeat: %v", i, mapping, order)
}
seen[mapping] = true
}
return nil
}

View File

@ -7,10 +7,11 @@ package dos3
import (
"encoding/binary"
"fmt"
"io"
"os"
"strings"
"github.com/zellyn/diskii/lib/disk"
"github.com/zellyn/diskii/disk"
"github.com/zellyn/diskii/types"
)
const (
@ -356,11 +357,11 @@ func (fd *FileDesc) FilenameString() string {
return strings.TrimRight(string(slice), " ")
}
// descriptor returns a disk.Descriptor for a FileDesc, but with the
// descriptor returns a types.Descriptor for a FileDesc, but with the
// length set to -1, since we can't know it without reading the file
// contents.
func (fd FileDesc) descriptor() disk.Descriptor {
desc := disk.Descriptor{
func (fd FileDesc) descriptor() types.Descriptor {
desc := types.Descriptor{
Name: fd.FilenameString(),
Sectors: int(fd.SectorCount),
Length: -1,
@ -368,28 +369,28 @@ func (fd FileDesc) descriptor() disk.Descriptor {
}
switch fd.Filetype & 0x7f {
case FiletypeText: // Text file
desc.Type = disk.FiletypeASCIIText
desc.Type = types.FiletypeASCIIText
case FiletypeInteger: // INTEGER BASIC file
desc.Type = disk.FiletypeIntegerBASIC
desc.Type = types.FiletypeIntegerBASIC
case FiletypeApplesoft: // APPLESOFT BASIC file
desc.Type = disk.FiletypeApplesoftBASIC
desc.Type = types.FiletypeApplesoftBASIC
case FiletypeBinary: // BINARY file
desc.Type = disk.FiletypeBinary
desc.Type = types.FiletypeBinary
case FiletypeS: // S type file
desc.Type = disk.FiletypeS
desc.Type = types.FiletypeS
case FiletypeRelocatable: // RELOCATABLE object module file
desc.Type = disk.FiletypeRelocatable
desc.Type = types.FiletypeRelocatable
case FiletypeA: // A type file
desc.Type = disk.FiletypeNewA
desc.Type = types.FiletypeNewA
case FiletypeB: // B type file
desc.Type = disk.FiletypeNewB
desc.Type = types.FiletypeNewB
}
return desc
}
// Contents returns the on-disk contents of a file represented by a
// FileDesc.
func (fd *FileDesc) Contents(lsd disk.LogicalSectorDisk) ([]byte, error) {
func (fd *FileDesc) Contents(diskbytes []byte) ([]byte, error) {
tsls := []TrackSectorList{}
nextTrack := fd.TrackSectorListTrack
nextSector := fd.TrackSectorListSector
@ -401,7 +402,7 @@ func (fd *FileDesc) Contents(lsd disk.LogicalSectorDisk) ([]byte, error) {
}
seen[ts] = true
tsl := TrackSectorList{}
if err := disk.UnmarshalLogicalSector(lsd, &tsl, nextTrack, nextSector); err != nil {
if err := disk.UnmarshalLogicalSector(diskbytes, &tsl, nextTrack, nextSector); err != nil {
return nil, err
}
tsls = append(tsls, tsl)
@ -426,7 +427,7 @@ func (fd *FileDesc) Contents(lsd disk.LogicalSectorDisk) ([]byte, error) {
data = append(data, 0)
}
} else {
contents, err := lsd.ReadLogicalSector(ts.Track, ts.Sector)
contents, err := disk.ReadSector(diskbytes, ts.Track, ts.Sector)
if err != nil {
return nil, err
}
@ -490,15 +491,18 @@ func (tsl *TrackSectorList) FromSector(data []byte) error {
// readCatalogSectors reads the raw CatalogSector structs from a DOS
// 3.3 disk.
func readCatalogSectors(d disk.LogicalSectorDisk) ([]CatalogSector, error) {
func readCatalogSectors(diskbytes []byte, debug bool) ([]CatalogSector, error) {
v := &VTOC{}
err := disk.UnmarshalLogicalSector(d, v, VTOCTrack, VTOCSector)
err := disk.UnmarshalLogicalSector(diskbytes, v, VTOCTrack, VTOCSector)
if err != nil {
return nil, err
}
if err := v.Validate(); err != nil {
return nil, fmt.Errorf("Invalid VTOC sector: %v", err)
}
if debug {
fmt.Fprintf(os.Stderr, "Read VTOC sector: %#v\n", v)
}
nextTrack := v.CatalogTrack
nextSector := v.CatalogSector
@ -516,7 +520,7 @@ func readCatalogSectors(d disk.LogicalSectorDisk) ([]CatalogSector, error) {
return nil, fmt.Errorf("catalog sectors can't be in sector %d: disk only has %d sectors", nextSector, v.NumSectors)
}
cs := CatalogSector{}
err := disk.UnmarshalLogicalSector(d, &cs, nextTrack, nextSector)
err := disk.UnmarshalLogicalSector(diskbytes, &cs, nextTrack, nextSector)
if err != nil {
return nil, err
}
@ -528,8 +532,8 @@ func readCatalogSectors(d disk.LogicalSectorDisk) ([]CatalogSector, error) {
}
// ReadCatalog reads the catalog of a DOS 3.3 disk.
func ReadCatalog(d disk.LogicalSectorDisk) (files, deleted []FileDesc, err error) {
css, err := readCatalogSectors(d)
func ReadCatalog(diskbytes []byte, debug bool) (files, deleted []FileDesc, err error) {
css, err := readCatalogSectors(diskbytes, debug)
if err != nil {
return nil, nil, err
}
@ -549,13 +553,14 @@ func ReadCatalog(d disk.LogicalSectorDisk) (files, deleted []FileDesc, err error
return files, deleted, nil
}
// operator is a disk.Operator - an interface for performing
// operator is a types.Operator - an interface for performing
// high-level operations on files and directories.
type operator struct {
lsd disk.LogicalSectorDisk
data []byte
debug bool
}
var _ disk.Operator = operator{}
var _ types.Operator = operator{}
// operatorName is the keyword name for the operator that undestands
// dos3 disks.
@ -566,11 +571,6 @@ func (o operator) Name() string {
return operatorName
}
// Order returns the sector or block order of the underlying storage.
func (o operator) Order() string {
return o.lsd.Order()
}
// HasSubdirs returns true if the underlying operating system on the
// disk allows subdirectories.
func (o operator) HasSubdirs() bool {
@ -579,12 +579,12 @@ func (o operator) HasSubdirs() bool {
// Catalog returns a catalog of disk entries. subdir should be empty
// for operating systems that do not support subdirectories.
func (o operator) Catalog(subdir string) ([]disk.Descriptor, error) {
fds, _, err := ReadCatalog(o.lsd)
func (o operator) Catalog(subdir string) ([]types.Descriptor, error) {
fds, _, err := ReadCatalog(o.data, o.debug)
if err != nil {
return nil, err
}
descs := make([]disk.Descriptor, 0, len(fds))
descs := make([]types.Descriptor, 0, len(fds))
for _, fd := range fds {
descs = append(descs, fd.descriptor())
}
@ -594,7 +594,7 @@ func (o operator) Catalog(subdir string) ([]disk.Descriptor, error) {
// fileForFilename returns the FileDesc corresponding to the given
// filename, or an error.
func (o operator) fileForFilename(filename string) (FileDesc, error) {
fds, _, err := ReadCatalog(o.lsd)
fds, _, err := ReadCatalog(o.data, o.debug)
if err != nil {
return FileDesc{}, err
}
@ -607,18 +607,18 @@ func (o operator) fileForFilename(filename string) (FileDesc, error) {
}
// GetFile retrieves a file by name.
func (o operator) GetFile(filename string) (disk.FileInfo, error) {
func (o operator) GetFile(filename string) (types.FileInfo, error) {
fd, err := o.fileForFilename(filename)
if err != nil {
return disk.FileInfo{}, err
return types.FileInfo{}, err
}
desc := fd.descriptor()
data, err := fd.Contents(o.lsd)
data, err := fd.Contents(o.data)
if err != nil {
return disk.FileInfo{}, err
return types.FileInfo{}, err
}
fi := disk.FileInfo{
fi := types.FileInfo{
Descriptor: desc,
Data: data,
}
@ -659,7 +659,7 @@ func (o operator) GetFile(filename string) (disk.FileInfo, error) {
errType = "B"
}
return disk.FileInfo{}, fmt.Errorf("%s does not yet implement `GetFile` for filetype %s", operatorName, errType)
return types.FileInfo{}, fmt.Errorf("%s does not yet implement `GetFile` for filetype %s", operatorName, errType)
}
// Delete deletes a file by name. It returns true if the file was
@ -671,29 +671,31 @@ func (o operator) Delete(filename string) (bool, error) {
// PutFile writes a file by name. If the file exists and overwrite
// is false, it returns with an error. Otherwise it returns true if
// an existing file was overwritten.
func (o operator) PutFile(fileInfo disk.FileInfo, overwrite bool) (existed bool, err error) {
func (o operator) PutFile(fileInfo types.FileInfo, overwrite bool) (existed bool, err error) {
return false, fmt.Errorf("%s does not implement PutFile yet", operatorName)
}
// Write writes the underlying disk to the given writer.
func (o operator) Write(w io.Writer) (int, error) {
return o.lsd.Write(w)
// OperatorFactory is a types.OperatorFactory for DOS 3.3 disks.
type OperatorFactory struct {
}
// operatorFactory is the factory that returns dos3 operators given
// disk images.
func operatorFactory(sd disk.SectorDisk) (disk.Operator, error) {
lsd, err := disk.NewMappedDisk(sd, disk.Dos33LogicalToPhysicalSectorMap)
if err != nil {
return nil, err
}
_, _, err = ReadCatalog(lsd)
if err != nil {
return nil, fmt.Errorf("Cannot read catalog. Underlying error: %v", err)
}
return operator{lsd: lsd}, nil
// Name returns the name of the operator.
func (of OperatorFactory) Name() string {
return operatorName
}
func init() {
disk.RegisterDiskOperatorFactory(operatorName, operatorFactory)
// SeemsToMatch returns true if the []byte disk image seems to match the
// system of this operator.
func (of OperatorFactory) SeemsToMatch(diskbytes []byte, debug bool) bool {
// For now, just return true if we can run Catalog successfully.
_, _, err := ReadCatalog(diskbytes, debug)
if err != nil {
return false
}
return true
}
// Operator returns an Operator for the []byte disk image.
func (of OperatorFactory) Operator(diskbytes []byte, debug bool) (types.Operator, error) {
return operator{data: diskbytes, debug: debug}, nil
}

View File

@ -2,10 +2,9 @@ package dos3
import (
"crypto/rand"
"os"
"reflect"
"testing"
"github.com/zellyn/diskii/lib/disk"
)
// TestVTOCMarshalRoundtrip checks a simple roundtrip of VTOC data.
@ -76,15 +75,11 @@ func TestTrackSectorListMarshalRoundtrip(t *testing.T) {
// TestReadCatalog tests the reading of the catalog of a test disk.
func TestReadCatalog(t *testing.T) {
sd, err := disk.LoadDSK("testdata/dos33test.dsk")
diskbytes, err := os.ReadFile("testdata/dos33test.dsk")
if err != nil {
t.Fatal(err)
}
dsk, err := disk.NewMappedDisk(sd, disk.Dos33LogicalToPhysicalSectorMap)
if err != nil {
t.Fatal(err)
}
fds, deleted, err := ReadCatalog(dsk)
fds, deleted, err := ReadCatalog(diskbytes, false)
if err != nil {
t.Fatal(err)
}

10
go.mod Normal file
View File

@ -0,0 +1,10 @@
module github.com/zellyn/diskii
go 1.16
require (
github.com/alecthomas/kong v0.2.17 // indirect
github.com/kr/pretty v0.2.1
github.com/spf13/cobra v1.1.3
github.com/spf13/viper v1.8.1
)

673
go.sum Normal file
View File

@ -0,0 +1,673 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
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cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
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github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
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github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
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github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
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github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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github.com/hashicorp/consul/api v1.1.0/go.mod h1:VmuI/Lkw1nC05EYQWNKwWGbkg+FbDBtguAZLlVdkD9Q=
github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
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github.com/hashicorp/go-syslog v1.0.0/go.mod h1:qPfqrKkXGihmCqbJM2mZgkZGvKG1dFdvsLplgctolz4=
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github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
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github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
github.com/hashicorp/mdns v1.0.0/go.mod h1:tL+uN++7HEJ6SQLQ2/p+z2pH24WQKWjBPkE0mNTz8vQ=
github.com/hashicorp/memberlist v0.1.3/go.mod h1:ajVTdAv/9Im8oMAAj5G31PhhMCZJV2pPBoIllUwCN7I=
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