Commit graph

14 commits

Author SHA1 Message Date
Ilia Sharin
aa72007e48 Added ATA/ATAPI article - dramatic story as always 2026-06-02 23:48:29 -04:00
Ilia Sharin
b915524667 docs: Document CDFS architecture and handler ecosystem
- 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.
2026-06-02 22:38:38 -04:00
Ilia Sharin
27cad8128d docs: expand final 3 Tier 3 articles + update all README indexes
Articles expanded:
- gadgets.md: 403→804 lines — 5 antipatterns, GadTools→BOOPSI migration,
  form cookbook, historical timeline, modern analogies, 6 FAQ
- screens.md: 582→992 lines — decision guide, 5 antipatterns, screen
  flipping/borderless/PAL-NTSC cookbooks, historical comparison, 7 FAQ
- custom_loaders_and_drm.md: 152→500 lines — bootblock structure,
  6 DRM systems, 5 antipatterns, trackloader cookbook, cracking scene
  history, modern analogies, 7 FAQ

README indexes updated in 6 sections to reflect expanded content.
2026-05-12 23:02:22 -04:00
Ilia Sharin
9f5d9de1ed docs: expand 7 Tier 3 articles to Deep quality
- gcc_amiga.md: 101→606 lines — pipeline, Docker, platform builds, flags, antipatterns, FAQ
- trackdisk.md: 178→428 lines — MFM encoding, 16-command reference, antipatterns, FPGA impact
- console.md: 244→470 lines — decision guide, TUI/progress cookbooks, antipatterns, pitfalls
- layers.md: 224→739 lines — ClipRect engine, LVO API, backfill hooks, 4 antipatterns, optimization
- text_fonts.md: 215→708 lines — ColorFont, Compugraphic outlines, 3 cookbooks, 4 antipatterns
- windows.md: 370→778 lines — 5 antipatterns, decision guide, 3 cookbooks, modern analogies
- menus.md: 378→695 lines — render chain diagram, 5 antipatterns, lifecycle cookbook, 6 FAQ
2026-05-12 22:04:16 -04:00
Ilia Sharin
9b0dfbcf32 Timer content improved 2026-04-26 23:06:26 -04:00
Ilia Sharin
d977480a69 Audio article expanded 2026-04-26 17:14:39 -04:00
Ilia Sharin
8133b3a6cb More content added 2026-04-26 14:46:18 -04:00
Ilia Sharin
a5b49d073f Peripherals and models description improved and expanded 2026-04-25 14:51:45 -04:00
Ilia Sharin
c4522ef2ed Add memory types article, expand blitter cookbook, update cross-references
New articles:
- 01_hardware/common/memory_types.md: comprehensive Chip/Fast/Slow RAM reference
  with DMA accessibility matrix, per-model configurations (A500-A4000),
  accelerator memory expansion (classic + modern), adaptive software behavior,
  pitfalls with impact analysis, FPGA/emulation notes
- AGENTS.md: documentation standards and methodology guidelines

Blitter programming (08_graphics/blitter_programming.md):
- Rewrote minterm truth table with narrative explanation and worked  example
- Added 7 advanced use cases with assembly/C code: shifted BOB, hardware scroll,
  area fill polygon, interleaved bitplane BOBs, double-buffered game loop,
  GUI window drag, tile map renderer
- Added Good/Bad Patterns section with 5 named antipatterns
- Added Practical Limitations table (10 constraints with workarounds)
- Expanded Common Minterms table with Description and Real-World Use Case columns

Cross-reference updates:
- Root README: added memory types to coverage, quick start, section index
- 01_hardware/README: updated common/ folder description
- address_space.md: linked to memory_types.md and chip_ram_expansion.md
- memory_management.md (exec): linked to hardware memory types reference
- bitmap.md, sprites.md, animation.md, audio.md: linked to memory_types.md
  explaining DMA Chip RAM requirement for each subsystem
- chip_ram_expansion.md: linked to comprehensive memory types article
2026-04-25 14:12:46 -04:00
Ilia Sharin
f61c26b542 Expand documentation suite: 30+ articles enriched with diagrams, code examples, and hardware details
Graphics: text_fonts (bitmap layout, styles), sprites (DMA, multiplexing), gfx_base (chipset detection), rastport (draw modes, clipping), ham_ehb (mermaid fixes), display_modes (HAM palettes)

Devices: scsi (per-model interfaces, Gayle limits, CD-ROM, native vs vendor drivers), console (ANSI sequences, CON:/RAW:), parallel (CIA registers, pinout), timer (resource exhaustion), gameport (quadrature, XOR state)

Libraries: workbench (WBStartup, AppWindow/Icon/MenuItem), rexxsyslib (ARexx port hosting, command parsing), diskfont (font directory, colour fonts), keymap (rawkey codes, dead keys), locale (catalogue system, date formatting), layers (ClipRect, refresh types), utility (TagItem chains), icon (DiskObject, ToolTypes), iffparse (IFF structure, ByteRun1), expansion (Zorro AutoConfig)

Networking: tcp_ip_stacks (major rewrite - Amiga vs Unix architecture, SANA-II pipeline, PPP/SLIP dial-up, Ethernet cards, MiSTer), bsdsocket (pure API ref), sana2 (buffer hooks, driver requirements), protocols (all code examples). Deduplicated overlap between the three files.

Toolchain: debugging (Enforcer patterns, SnoopDOS, GDB remote, kprintf checklist), sasc (pragma encoding, __saveds idioms), stormc (NEW - StormC IDE, C++, PowerPC)

References: error_codes (DOS, Exec, trackdisk, Intuition error tables)
Driver development: rtg_driver (Native driver analysis, P96 tuning)

All 22 README indexes updated. Root README synced with stormc.md entry.
2026-04-23 21:37:26 -04:00
Ilia Sharin
0ded078134 Phase 1 continued: serial, input devices + README indexes
10_devices:
- serial.md: expanded with DB-25 pinout, custom chip UART registers,
  baud rate calculation table, open/configure/read/write patterns,
  serial debugging (KPrintF/Sushi)
- input.md: expanded with handler chain architecture diagram,
  InputEvent struct, event classes table, qualifier bits, custom
  handler with key remapping, event consumption/blocking,
  synthetic event injection, Commodities Exchange

Updated indexes:
- 07_dos/README.md — enriched descriptions for all files
- 10_devices/README.md — enriched descriptions for all files
2026-04-23 20:28:03 -04:00
Ilia Sharin
da9e7d3b63 Phase 1: enrich 07_dos and 10_devices (highest FPGA priority)
07_dos:
- file_io.md: 108→240+ lines — buffered I/O (FRead/FWrite/SetVBuf),
  access mode comparison, FileHandle struct with offsets, standard
  handles, Printf %ld warning, FileInfoBlock, practical patterns
  (copy file, get size, load to RAM), error code table
- filesystem.md: 91→270+ lines — full disk geometry (ADF/HDF),
  all 8 DOS\x filesystem IDs, root block byte-level layout, file
  header layout with reverse-order pointer quirk, OFS vs FFS data
  blocks with efficiency numbers, bitmap blocks, extension blocks,
  checksum algorithm, Python ADF reader
- locks_examine.md: 113→270+ lines — lock semantics diagram, FileLock
  struct with handler discovery, ExAll bulk scan, practical patterns
  (atomic write, path resolution, volume info), 4 antipatterns
  (leaked locks, exclusive too long, unchecked IoErr, DupLock),
  pattern matching

10_devices:
- audio.md: 73→240+ lines — hardware architecture diagram, channel
  registers with offsets, period/frequency table, priority allocation,
  double-buffering, audio interrupts, AM/PM modulation, direct HW
- timer.md: 80→230+ lines — CIA timer hardware, all 5 units with
  decision flowchart, non-blocking delays, signal-based waiting,
  time arithmetic, ReadEClock, periodic game loop pattern, pitfalls
- trackdisk.md: 82→210+ lines — MFM encoding, track format, disk
  geometry, read/write/motor, change notification, track caching,
  direct hardware access, FPGA timing implications
- keyboard.md: 58→220+ lines — CIA-A serial handshake protocol with
  sequence diagram, bit rotation quirk, complete key code map,
  key matrix bitmap, reset sequence, FPGA notes
2026-04-23 20:23:50 -04:00
Ilia Sharin
fca930d0db docs(amiga): make cross-references clickable markdown links
Convert bare .md path references in 29 files to proper [name](relative/path)
markdown links for GitHub navigation.
2026-04-23 12:24:21 -04:00
Ilia Sharin
21751c0025 docs(amiga): complete AmigaOS 3.1/3.2 developer reference — 172 files across 17 sections
Comprehensive technical documentation covering:
- Hardware: OCS/ECS/AGA custom chip registers, Copper & Blitter deep dives
- Boot sequence: cold boot through startup-sequence
- Binary format: HUNK executable spec, relocation, debug info
- Linking & ABI: .fd files, LVO tables, register calling conventions
- Exec kernel: tasks, interrupts, memory, signals, semaphores
- AmigaDOS: file I/O, FFS/OFS layout, CLI/Shell scripting
- Graphics: planar bitmaps, Copper programming, HAM/EHB modes
- Intuition: screens, windows, IDCMP, BOOPSI
- Devices: trackdisk, SCSI, serial, timer, audio, keyboard
- Libraries: utility, expansion, IFFParse, locale, ARexx
- Networking: bsdsocket API, SANA-II, TCP/IP stack comparison
- Toolchain: GCC, vasm/vlink, SAS/C, NDK, debugging
- Reverse engineering: IDA/Ghidra setup, compiler fingerprints, case studies
- CPU & MMU: 68040/060 emulation libs, PMMU, cache management
- Driver development: SANA-II, Picasso96/RTG, AHI audio

All files include breadcrumb navigation. No local paths or proprietary content.
2026-04-23 12:17:35 -04:00