mirror of https://github.com/zellyn/diskii.git
159 lines
6.1 KiB
Markdown
159 lines
6.1 KiB
Markdown
diskii
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======
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**Note:** diskii is not stable yet! I don't expect to remove
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functionality, but I'm still experimenting with the command syntax and
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organization, so don't get too comfy with it.
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diskii-the-tool is a commandline tool for working with Apple II disk
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images. Given that
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[AppleCommander](http://applecommander.sourceforge.net/) already does
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everything, it's not terribly necessary. It is, however, mine. Minor
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benefits (right now) are binaries you can copy around (no Java
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needed), support for Super-Mon symbol tables on NakedOS disks, and
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creation of
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"[Standard Delivery](https://github.com/peterferrie/standard-delivery)"
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disk images.
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diskii-the-library is probably more useful: a library of
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disk-image-manipulation code that can be used by other Go programs.
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diskii's major disadvantage is that it mostly doesn't exist yet.
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[](https://travis-ci.org/zellyn/diskii)
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[](https://goreportcard.com/report/github.com/zellyn/diskii)
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[](https://godoc.org/github.com/zellyn/diskii/lib)
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It rhymes with “whiskey”.
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Discussion/support is in
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[#apple2 on the retrocomputing Slack](https://retrocomputing.slack.com/messages/apple2/)
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(invites [here](https://retrocomputing.herokuapp.com)).
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# Goals
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Eventually, it aims to be a comprehensive disk image manipulation
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tool, but for now only some parts work.
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The library code aims (a) to support the commandline tool operations,
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and (b) to replace the "read and write disk images" code of the
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[goapple2 emulator](https://github.com/zellyn/goapple2).
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Current disk operations supported:
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| Feature | DOS 3.3 | ProDOS | NakedOS/Super-Mon |
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| ---------------- | -------- | ------ | ------------------ |
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| basic structures | ✓ | ✓ | ✓ |
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| ls | ✓ | ✓ | ✓ |
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| dump | ✓ | ✗ | ✓ |
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| put | ✗ | ✗ | ✓ |
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| dumptext | ✗ | ✗ | ✗ |
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| delete | ✗ | ✗ | ✗ |
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| rename | ✗ | ✗ | ✗ |
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| put | ✗ | ✗ | ✗ |
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| puttext | ✗ | ✗ | ✗ |
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| extract (all) | ✗ | ✗ | ✗ |
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| lock/unlock | ✗ | ✗ | ✗ |
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| init | ✗ | ✗ | ✗ |
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| defrag | ✗ | ✗ | ✗ |
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# Installing/updating
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Assuming you have Go installed, run `go get -u github.com/zellyn/diskii`
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You can also download automatically-built binaries from the
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[latest release
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page](https://github.com/zellyn/diskii/releases/latest). If you
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need binaries for a different architecture, please send a pull
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request or open an issue.
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# Short-term TODOs/roadmap/easy ways to contribute
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My rough TODO list (apart from anything marked (✗) in the disk
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operations matrix is listed below. Anything that an actual user needs
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will be likely to get priority.
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- [x] Build per-platform binaries for Linux, MacOS, Windows.
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- [x] Implement `GetFile` for DOS 3.3
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- [ ] Add and implement the `-l` flag for `ls`
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- [x] Add `Delete` to the `disk.Operator` interface
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- [x] Implement it for Super-Mon
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- [ ] Implement it for DOS 3.3
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- [ ] Make 13-sector DOS disks work
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- [ ] Read/write nybble formats
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- [ ] Read/write gzipped files
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- [ ] Add basic ProDOS structures
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- [ ] Add ProDOS support
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# Related tools
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- http://a2ciderpress.com/ - the great grandaddy of them all. Windows only, unless you Wine
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- http://retrocomputingaustralia.com/rca-downloads/ Michael Mulhern's MacOS package of CiderPress
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- http://applecommander.sourceforge.net/ - the commandline, cross-platform alternative to CiderPress
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- http://brutaldeluxe.fr/products/crossdevtools/cadius/index.html - Brutal Deluxe's commandline tools
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- https://github.com/paleotronic/dskalyzer - cross-platform disk analysis tool (also written in Go!) from the folks who brought you [Octalyzer](http://octalyzer.com/).
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- https://github.com/cybernesto/dsktool.rb
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- https://github.com/cmosher01/Apple-II-Disk-Tools
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- https://github.com/madsen/perl-libA2
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- https://github.com/markdavidlong/AppleSAWS
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- https://github.com/dmolony/DiskBrowser
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- https://github.com/deater/dos33fsprogs
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- https://github.com/jtauber/a2disk
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- https://github.com/datajerk/c2d
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- https://github.com/thecompu/Driv3rs - A Python Script to work with Apple III SOS DSK files
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- http://www.callapple.org/software/an-a-p-p-l-e-review-shink-fit-x-for-mac-os-x
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- https://github.com/dmolony/DiskBrowser - graphical (Java) disk browser that knows how to interpret and display many file formats
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- https://github.com/slotek/apple2-disk-util - ruby
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- https://github.com/slotek/dsk2nib - C
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- https://github.com/robmcmullen/atrcopy - dos3.3, python
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# Notes
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## Disk formats
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- `.do`
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- `.po`
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- `.dsk` - could be DO or PO.
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DOS 3.2.1: the 13 sectors are physically skewed on disk.
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DOS 3.3+: the 16 physical sectors are stored in ascending order on disk, not physically skewed at all. The
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| Logical Sector | DOS 3.3 Physical Sector | ProDOS Physical Sector |
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| --------------- | -------------- | ------------- |
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| 0 | 0 | x |
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| 1 | D | x |
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| 2 | B | x |
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| 3 | 9 | x |
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| 4 | 7 | x |
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| 5 | 5 | x |
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| 6 | 3 | x |
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| 7 | 1 | x |
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| 8 | E | x |
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| 9 | C | x |
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| A | A | x |
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| B | 8 | x |
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| C | 6 | x |
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| D | 4 | x |
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| E | 2 | x |
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| F | F | x |
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### RWTS - DOS
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Sector mapping:
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http://www.textfiles.com/apple/ANATOMY/rwts.s.txt and search for INTRLEAV
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Mapping from specified sector to physical sector (the reverse of what the comment says):
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`00 0D 0B 09 07 05 03 01 0E 0C 0A 08 06 04 02 0F`
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So if you write to "T0S1" with DOS RWTS, it ends up in physical sector 0D.
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## Commandline examples for thinking about how it should work
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diskii ls dos33.dsk
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diskii --order=do ls dos33.dsk
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diskii --order=do --system=nakedos ls nakedos.dsk
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