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docs: Document CDFS architecture and handler ecosystem

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- Add comprehensive cdfs.md covering ISO 9660, UDF, handlers, and hardware.
- Update relevant section indexes (07_dos, 10_devices, 02_boot_sequence) and root README.
- Expand scsi.md to link to the new CDFS coverage.
This commit is contained in:
Ilia Sharin 2026-06-02 22:38:38 -04:00
parent 36b2ea8af3
commit b915524667
6 changed files with 897 additions and 5 deletions
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2
10_devices/README.md
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@ -9,7 +9,7 @@ Amiga devices are shared libraries with an exec I/O request interface. They prov
| File | Description |
|---|---|
| [trackdisk.md](trackdisk.md) | Floppy disk DMA: MFM encoding, track format, disk geometry, track caching, direct HW access, 16-command reference, antipatterns, FPGA/MiSTer impact, 6 FAQ |
| [scsi.md](scsi.md) | Hard disk/CD-ROM I/O: per-model interfaces, Gayle bandwidth limits, native vs vendor drivers, HD_SCSICMD, CD-ROM commands, TD64/NSD 64-bit |
| [scsi.md](scsi.md) | Hard disk/CD-ROM I/O: per-model interfaces, Gayle bandwidth limits, native vs vendor drivers, HD_SCSICMD, CD-ROM commands, TD64/NSD 64-bit. See also: [CD-ROM Filesystems](../07_dos/cdfs.md) |
| [serial.md](serial.md) | UART/RS-232: CIA registers, baud rate calculation, serial debugging (KPrintF) |
| [parallel.md](parallel.md) | Centronics parallel port: CIA-A Port B mapping, hardware pinout, direct register access |
| [timer.md](timer.md) | Virtualised timing service: named antipatterns, use-case cookbook (blocking delay, UI timeout, game frame sync, audio refill, benchmarking, system time), decision flowchart, FPGA/MiSTer impact, 1985 competitive landscape, modern analogies, FAQ |

11
10_devices/scsi.md
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@ -238,9 +238,13 @@ DoIO((struct IORequest *)diskReq);
| Driver | Type | Features |
|---|---|---|
| **AmiCDFS** | Commodore (stock) | Basic ISO 9660, slow |
| **CacheCDFS** | Third-party (popular) | ISO 9660 + Joliet + RockRidge, caching, fast |
| **AsimCDFS** | Third-party | Similar to CacheCDFS, commercial |
| **AmiCDFS** | Free (Aminet) | ISO 9660, Rock Ridge, HFS, circular cache |
| **CacheCDFS** | OS 3.5+ / IDE-fix | ISO 9660, Rock Ridge, Joliet, HFS, LRU cache — de facto standard |
| **AsimCDFS** | Commercial | ISO 9660, High Sierra, Rock Ridge, HFS, CD-DA ripping, CDTV/CD32 emulation |
| **AllegroCDFS** | Elbox-bundled | ISO 9660 L1–3, Rock Ridge, Joliet, UDF, fastest benchmarks |
| **ODFileSystem** | Open source | ISO 9660, Rock Ridge, Joliet, UDF, HFS, HFS+ — modern replacement |
See [CD-ROM Filesystems](../07_dos/cdfs.md) for the full deep-dive: format coverage matrix, handler architecture, mount configuration, and decision guide.
---
@ -285,3 +289,4 @@ DoIO((struct IORequest *)diskReq);
- See also: [Akiko — CD32](../01_hardware/aga_a1200_a4000/akiko_cd32.md) — CD32 CD-ROM controller (Akiko PIO, not SCSI)
- See also: [Gayle IDE & PCMCIA](../01_hardware/common/gayle_ide_pcmcia.md) — A600/A1200 IDE controller
- See also: [Gary — A3000](../01_hardware/ecs_a600_a3000/gary_system_controller.md) — A3000 SDMAC/WD33C93 SCSI integration
- See also: [CD-ROM Filesystems](../07_dos/cdfs.md) — CDFS handler deep-dive: ISO 9660, Rock Ridge, Joliet, UDF, handler comparison