Amiga Knowledge Base — Gap Analysis & Improvement Proposal

Date: 2026-04-25 Updated: 2026-04-30 (expansion.library & autoconfig.md hardening) Scope: All 17 sections, ~90 articles, /doc/amiga/

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Quality Assessment Methodology

Articles were scored against AGENTS.md "Deep" criteria: - Mermaid architecture / data-flow diagrams - Named antipatterns with broken/fixed code pairs - Pitfalls sections with bad/good code - FAQ for commonly asked questions - FPGA/Emulation impact section - Use-Case Cookbook (copy-paste patterns) - Decision Flowchart (when to use vs alternatives) - Cross-platform comparison / Modern Analogies

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Tier 1 — Critical Gaps (No Article Exists) — ALL COMPLETE ✅

#	New Article	Why Needed	Status
1	Datatypes System	The single most common AmigaOS API used by nearly every application for image/sound/text loading (ILBM, GIF, JPEG, WAV, 8SVX, etc.). NewDTObject() / LoadDTObject() / GetDTAttrs(). Zero coverage — major oversight.	✅ DONE — 11_libraries/datatypes.md (839 lines)
2	AmigaGuide — Hypertext Help System	The standard help file format for every Amiga application. AmigaGuide files (.guide) with embedded links, images, and XREF support are used universally. No article exists.	✅ DONE — 11_libraries/amigaguide.md (760 lines)
3	commodities.library — Hotkey/I/O Hooks	The background input-filtering system (Exchange, hotkey brokers, screen blankers, mouse gesture tools). Used by FKey, ClickToFront, MultiCX, MagicMenu. No coverage.	✅ DONE — 09_intuition/commodities.md (769 lines)
4	translator.library — Speech Translation	The text-to-speech phonetic translator (translator.library + narrator.device). Phoneme-based synthesis, not data format conversion.	✅ DONE — 11_libraries/translator.md (536 lines)
5	VBCC Compiler	vbcc is the second most popular Amiga cross-compiler after GCC bebbo. Mentioned in register_conventions.md and compiler_stubs.md but has no dedicated article unlike SAS/C and StormC.	✅ DONE — 13_toolchain/vbcc.md (703 lines)

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Tier 2 — Major Upgrades (Shallow → Deep)

#	File	Was	Now	Status
6	00_overview/hardware_models.md	47 lines	591 lines	✅ DONE — Per-model deep-dive, custom chip inventory per model, memory maps, real-world context
7	08_graphics/bitmap.md	118 lines	598 lines	✅ DONE — Mermaid architecture, AllocBitMap() lifecycle, interleaved layout, modulo alignment pitfalls, RastPort→BitMap relationship, cookbook
8	12_networking/bsdsocket.md	134 lines	1057 lines	✅ DONE — Event-loop cookbook, WaitSelect() deep dive, non-blocking async I/O, multi-socket patterns, DNS resolution, performance tables
9	10_devices/audio.md	279	945	✅ DONE — 5 named antipatterns, 5 pitfalls, DMA slot budget, initialization boilerplate + use-case cookbook (SFX, MOD loop, disk streaming, voice-over), decision flowchart (audio.device vs direct HW), best practices, when-NOT-to-use, 1985 cross-platform comparison, MOD file format deep-dive (structure, cultural impact, 100:1 compression), 14-bit Paula calibrated hack FAQ (Christian Buchner, AmigaAmp, mpega.library, 040/060 MP3 playback), FPGA/MiSTer impact
10	10_devices/timer.md	529	854	✅ DONE — 8 named antipatterns with broken/fixed code pairs (Re-Arm Without Wait, Abandoned Abort, Microsecond VBlank, Naked ReadEClock, Hard-Coded Hertz, Spin Loop, Leaky Shutdown, Delay() Dependency), Use-Case Cookbook (6 patterns: blocking delay, UI timeout, game frame sync, audio refill, benchmarking, system time), decision flowchart, best practices, when-to-use/when-not-to-use, FPGA/MiSTer impact (E-clock/VBlank accuracy, non-standard refresh rates), 1985 competitive landscape (C64/MS-DOS/Atari ST/Mac vs Amiga virtualisation), modern analogies (setTimeout, requestAnimationFrame, clock_nanosleep, rdtsc), 7 FAQ items
11	01_hardware/aga_a1200_a4000/cpu_030_040.md	139	425	✅ DONE — Commodore + third-party accelerator catalog (Blizzard, CyberStorm, WarpEngine, GVP, Apollo), quantified benchmarks (MIPS/Dhrystones/MB/s per CPU), 4 named antipatterns (Ghost Cache, Missing Library, Calibrated Loop, Speeding on Chip Bus), 3 pitfalls (CIA cache coherency, alignment, Chip RAM speed invariant), 7 best practices, when-to-use table, FPGA/MiSTer impact (TG68K vs Apollo 68080), 68K evolution timeline 1979-1994, modern analogies (non-cache-coherent DMA, x86 MTRR/PAT, ARM Cortex-A8 superscalar), FAQ
12	08_graphics/views.md	109	445	✅ DONE — Mermaid 3-stage pipeline, ViewPort chaining (split screens), ColorMap/LoadRGB4, 3 named antipatterns (Ghost Screen, Half-Screen Haunt, Color Clash), 4 pitfalls, When-to-Use decision flowchart (Views vs Direct Copper), 7 best practices, 1985 cross-platform comparison, modern GPU analogies (command buffers, vkQueuePresentKHR)
13	08_graphics/display_modes.md	217	646	✅ DONE — ModeID selection flowchart (Mermaid + fallback code), CRT vs flat-panel table (scandoublers, pixel aspect ratio, overscan), interlace vs progressive tradeoffs (CRT vs LCD experience, DBLPAL as flicker-free alternative), 5 named antipatterns (Hardcoded Mode, Depth Ostrich, LACE Without Thought, ModeID Bit-Whacker, FMODE Faith-Healer), 3 pitfalls (DMA starvation, overscan assumptions, PAL/NTSC assumptions), 8 best practices, when-to-use/when-NOT table, FPGA/MiSTer impact (pixel clock accuracy, FMODE bus timing, interlace field ID), 1985 competitive landscape, modern analogies (EDID, GDDR5/HBM2, Retina @2x, texture compression, CGDisplayCopyAllDisplayModes), 6 FAQ items
14	07_dos/filesystem.md	304	1244	✅ DONE — Comprehensive capabilities matrix (max disk/file size, directory limits, nesting, floppy/HDD, crash resilience); detailed third-party filesystem deep-dive (PFS3 atomic commits, SFS journaling, FFS2 64-bit — each with named pros/cons lists); crash resilience comparison (validation vs atomic commits vs journaling with quantified validation times); fragmentation & defragmentation deep-dive (bitmap allocation scatter, quantified media impact table, visual fragmented vs contiguous diagrams, defrag tool catalog — ReOrg/DiskSafe/Quarterback/SFSdefrag — with 5-step ReOrg algorithm, CF/SSD no-defrag rationale, 6 best practices); partition IDs, signatures & on-disk data layout (two-layer identification — RDB DosType vs on-disk boot block, complete DosType reference tables with hex values for OFS/FFS/PFS3/SFS, PFS3's unique split-signature design with WARNING box, summary of what bytes you see at partition block 0 in a hex editor, ASCII box diagrams showing where each filesystem places its metadata — OFS/FFS root at midpoint, PFS3 metadata zone at beginning, SFS master directory block at block 2, quick-comparison table); full RDB partitioning deep-dive (RigidDiskBlock structure, PartitionBlock linked list, filesystem headers in RDB, partition flags, limits); Kickstart boot process (4-phase Strap enumeration, BootPri selection, filesystem loading from RDB, Early Startup Menu, 4-phase Mermaid flowchart); multi-boot/dual-boot configurations (5 scenarios); expanded When-to-Use table (filesystem selection + partition layout strategy with 7 common goals); filesystem selection decision flowchart; unified comparison matrix spanning OFS/FFS/FAT16/HFS/UFS/PFS3/SFS/FFS2; 5 named antipatterns; 4 pitfalls; 6-item fragmentation best practices; FPGA/MiSTer impact; 1985-1994 landscape + modern analogies; FAQ (12 items)

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Tier 3 — Quality Boosts (Adequate → Exceptional)

#	File	Was	Now	Status
15	08_graphics/sprites.md	306	582	✅ Complete — DMA timing, CLXCON/CLXDAT collision, V39 ExtSprite API, decision flowchart, 5 named antipatterns, multiplexing techniques, real-world use cases, FPGA notes, competitive landscape
16	08_graphics/text_fonts.md	215	708	✅ Complete — Expanded with ColorTextFont layout, Compugraphic outlines, font scaling/aspect ratio, draw mode effects, 3 cookbooks (centered title, multi-font label, word wrap), 4 antipatterns, 4 pitfalls, historical comparison, modern analogies, 6 FAQ
17	09_intuition/screens.md	582	992	✅ Complete — Added screen type decision guide (Mermaid), 5 named antipatterns (Orphan Screen, Hardcoded Mode, Stale Pointer, Forced Close, Layer Lock Trap), 3 cookbooks (screen flipping, borderless fullscreen, PAL/NTSC safe), historical comparison, modern analogies, use cases, 7 FAQ
18	09_intuition/windows.md	370	778	✅ Complete — Added 5 named antipatterns (Border Collision, Unresponsive Close, Leaked Message, Refresh Loop, Phantom Window), window type decision guide with Mermaid, 3 cookbooks (resizable, borderless overlay, multi-window shared port), historical comparison, modern analogies, use cases, 7 FAQ
19	09_intuition/menus.md	378	695	✅ Complete — Added render chain sequence diagram, 5 named antipatterns (Multi-Select Ghost, Stale Menu, Cleanup Reversal, Shortcut Collision, Phantom VisualInfo), complete lifecycle cookbook, historical comparison, modern analogies, use cases, 6 FAQ
20	09_intuition/gadgets.md	403	804	✅ Complete — Added 5 named antipatterns (Invisible Gadget, Message Mangler, Orphaned Chain, Hot-Swap Hazard, Silent Button), GadTools→BOOPSI migration guide with comparison table, form cookbook, historical timeline, modern analogies, use cases, 6 FAQ
21	11_libraries/iffparse.md	271	1031	✅ DONE — Nesting & chunk hierarchy diagrams, ILBM/EHB pitfalls, PBM read patterns, cross-reference to Datatypes
22	13_toolchain/gcc_amiga.md	82	606	✅ Complete — Full build pipeline, Docker setup, platform-specific builds (Linux/macOS/Windows), CPU targets, libnix/ixemul startup, flags, antipatterns, FAQ
23	11_libraries/layers.md	224	739	✅ Complete — Expanded with ClipRect engine deep-dive, API reference with LVOs, backfill hook cookbook, refresh type decision guide, 4 named antipatterns, 4 pitfalls, ClipBlit vs ScrollRaster optimization, historical comparison table, modern analogies, 7 FAQ
24	10_devices/console.md	244	470	✅ Complete — Decision guide, TUI/progress bar cookbooks, escape sequence table, antipatterns, pitfalls, 6 FAQ
25	10_devices/trackdisk.md	178	428	✅ Complete — Sector-level format diagram, MFM encoding, 16-command reference, antipatterns, FPGA/MiSTer impact, 6 FAQ

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Tier 4 — Modernization & Advanced Techniques (New Articles)

#	New Article	Why Needed	Status
26	Custom Trackloaders & DRM	80% of classic games bypassed DOS. Reversing them requires understanding raw MFM sync words, bootblocks, and copy protection (e.g. Rob Northen Copylock).	✅ DONE — 05_reversing/custom_loaders_and_drm.md (500 lines)
27	RTG (Retargetable Graphics)	Modern Amigas use RTG (Picasso96/CyberGraphX) for 16/24-bit chunky graphics. Application-level rendering is undocumented in our 08_graphics folder.	✅ DONE — 08_graphics/rtg_programming.md (645 lines)
28	AHI Audio Interface	Hardware-agnostic 16-bit multi-channel audio mixing is standard for modern Amiga apps, decoupling audio from the 8-bit 4-channel Paula chip limits.	✅ DONE — 11_libraries/ahi_programming.md (737 lines)
29	Demoscene Techniques	Exploits like Sprite Multiplexing and Copper Chunks defined the platform's capabilities. Crucial for understanding high-performance hardware banging.	✅ DONE — 17_demoscene/ section (5 sub-articles + README)
30	Modern Cross-Compilation	Setting up m68k-amigaos-gcc, vbcc, and vasm via CMake on modern macOS/Linux to build native .hunk binaries.	✅ DONE — 13_toolchain/cross_compilation_guide.md (603 lines)

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Per-Article Status

Status	Meaning
✅ Deep	Meets AGENTS.md criteria: Mermaid, antipatterns, pitfalls, cookbook, FPGA impact, historical context, modern analogies, FAQ
✅ Adequate	Functional reference with struct tables and API docs; lacks antipatterns / cookbooks / modern context
⚠️ Thin	Skeleton coverage only; needs significant expansion
❌ Pending	In Tier 3 scan — targeted for upgrade

00 — Overview

Article	Lines	Status	Notes
hardware_models.md	591	✅ Deep	Per-model deep-dive, custom chip inventory, memory maps, real-world context
history.md	114	✅ Adequate	Platform history timeline
os_versions.md	148	✅ Adequate	OS version comparison table

01 — Hardware

Article	Folder	Lines	Status	Notes
cpu_030_040.md	aga	424	✅ Deep	Tier 2 upgrade: accelerator catalog, benchmarks, 4 antipatterns, 68K timeline
akiko_cd32.md	aga	386	✅ Deep	Akiko C2P engine, CD32 hardware architecture, CD-ROM DMA
aga_copper.md	aga	371	✅ Adequate	AGA copper changes: 8-bit X position, $DFFxxx jump
aga_blitter.md	aga	167	✅ Adequate	AGA 32-bit blitter: 4× throughput, FMODE register
aga_palette.md	aga	134	✅ Adequate	AGA 24-bit palette: LOCT/SHCT banks
chipset_aga.md	aga	126	✅ Adequate	AGA chipset architecture overview
aga_sprites.md	aga	180	✅ Adequate	AGA sprite enhancements: 32/64px width, FMODE SPR_FMODE, BPLCON4 ESPRM/OSPRM color bank, DMA format changes, alignment
aga_display_modes.md	aga	122	✅ Adequate	AGA display modes: DBLPAL, Multiscan, HAM8
aga_registers_delta.md	aga	97	✅ Adequate	OCS→AGA register differences table
memory_types.md	common	423	✅ Deep	Chip/Fast/Slow RAM, DMA constraints, $C00000 alias
gayle_ide_pcmcia.md	common	220	✅ Adequate	Gayle gate array: IDE and PCMCIA controller
cia_chips.md	common	218	✅ Adequate	8520 CIA: timers, I/O ports, TOD clock
address_space.md	common	175	✅ Adequate	24-bit memory map: Chip, Fast, ROM, I/O, Zorro II
m68k_cpu.md	common	141	✅ Adequate	68000 architecture baseline: registers, exceptions
zorro_bus.md	common	110	✅ Adequate	Zorro II/III expansion bus: electrical specs, bandwidth, Buster, PCI bridges; links to autoconfig.md for protocol details
autoconfig.md	common	662	✅ Deep	AutoConfig protocol: CFGIN/CFGOUT chain, ExpansionRom encoding, nibble-pair map, size codes, shut-up mechanism, Z2/Z3 differences, antipatterns, FPGA notes, boot sequence positioning
dma_architecture.md	common	581	✅ Deep	Scanline slot allocation, even/odd interleaving, DMA channel priority, bitplane DMA budget (DDFSTRT/DDFSTOP/BPLxMOD), bus arbitration (Agnus as bus master, DTACK, wait states), Blitter-Nasty/BLTPRI, per-model bus table (A1000→CD32), Buster/Ramsey/SDMAC/Gayle glue chips, AGA FMODE bandwidth equation, alignment requirements, FPGA implementation notes (Minimig state machine, SDRAM timing, common bugs), bandwidth calculation cookbook with 4 worked examples, best practices, FAQ
video_timing.md	common	736	✅ Deep	Crystal-to-CPU clock tree (PAL/NTSC), scanline anatomy, frame structure, interlace LOF/SHF, beam counters (VPOSR/VHPOSR), BEAMCON0 programmable sync, 23-pin video connector pinout, analog/digital RGB output, video slot (A2000/A3000/A4000), genlock/XCLK/PIXELSW overlay, Video Toaster, scandoublers/flicker fixers (historical + modern Indivision/RGB2HDMI/OSSC), sync→async CPU evolution, per-frame time budgets, best practices, FAQ
bus_architecture.md	common	872	✅ Deep	Bus hierarchy (dual-domain), 68000 bus cycle anatomy (S-states, DTACK, wait states), Gary/Fat Gary/Gayle/Buster/Ramsey bus glue, bus arbitration algorithms (3-layer: Agnus priority, 68000 handshake, Buster round-robin), custom register access ($DFF000 word-only, CLR.W hazard, volatile, timing), CIA register access (byte-lane, E-clock sync, ICR read-clear), accelerator bus bridge (arbitration, clock domain crossing, penalty ratios), cache coherency with DMA (CachePreDMA/CachePostDMA, 68030/040/060), cross-domain transfer techniques (MOVEM/MOVE16/Blitter relative benchmarks, C2P pipeline, ping-pong audio), per-model address maps (A500/A2000/A3000/A4000/A600/A1200/CD32 with expansion windows), PCI bridge windowing (Mediator/G-REX/Prometheus), best practices & antipatterns
cdtv_hardware.md	ocs	283	✅ Adequate	CDTV-specific: CD-ROM controller, front panel, boot ROM
custom_registers.md	ocs	183	✅ Adequate	OCS custom chip register map
blitter.md	ocs	154	✅ Adequate	Blitter engine basics: channels, minterms, line draw
sprites.md	ocs	136	✅ Adequate	Hardware sprite DMA: 8 sprites × 4 colors — note: separate from 08_graphics/sprites.md (Tier 3 #15)
paula_audio.md	ocs	135	✅ Adequate	Paula audio: 4-channel DMA, period/volume registers
copper.md	ocs	128	✅ Adequate	Copper coprocessor basics: instruction format, WAIT/MOVE
paula_serial.md	ocs	123	✅ Adequate	Paula UART and floppy disk controller
chipset_ocs.md	ocs	107	✅ Adequate	OCS chipset architecture: Agnus/Denise/Paula
chipset_ecs.md	ecs	119	✅ Adequate	ECS chipset changes: Super Agnus, 2 MB Chip RAM
ecs_registers_delta.md	ecs	114	✅ Adequate	OCS→ECS register differences table
ecs_sprites.md	ecs	98	✅ Adequate	ECS sprite enhancements: border sprites (BRDSPRT), independent resolution (SPRES), color bank, half-ECS trap
productivity_modes.md	ecs	97	✅ Adequate	ECS productivity/VGA: 640×480×4, 31 kHz scan
chip_ram_expansion.md	ecs	77	✅ Adequate	A600 trapdoor Chip RAM expansion
gary_system_controller.md	ecs	576	✅ Deep	Gary & Fat Gary: address decoding, bus arbitration, interrupt controller, SCSI/SDMAC integration, AutoConfig controller, chip variants (5719/5391/5393), runtime detection (4 methods), Gary vs Gayle vs Ramsey/Budgie decision guide, 3 named antipatterns, 3 pitfalls, FPGA timing requirements, historical context (TTL→ASIC), modern Northbridge analogy

02 — Boot Sequence

Article	Lines	Status	Notes
cold_boot.md	500	✅ Deep	Power-on to Kickstart handoff: reset vector, ROM shadow
dos_boot.md	451	✅ Deep	Strap module, boot block execution, Startup-Sequence parsing
kickstart_rom.md	446	✅ Deep	ROM binary structure, module inventory, extraction tools
kickstart_init.md	406	✅ Deep	ExecBase creation, resident module scan, 4-phase init
early_startup.md	253	✅ Deep	Early Startup Control menu, recovery scenarios

03 — Executable Loader & HUNK Format

Article	Lines	Status	Notes
exe_crunchers.md	617	✅ Deep	PowerPacker/Imploder/Shrinkler, decrunch stubs — exemplary article
hunk_format.md	583	✅ Deep	Complete HUNK binary specification, all 22 hunk type codes, debug format tags, bit masking
hunk_relocation.md	326	✅ Adequate	Relocation mechanics with visual before/after diagrams
overlay_system.md	311	✅ Adequate	HUNK_OVERLAY tree architecture, runtime manager
exe_load_pipeline.md	276	✅ Adequate	LoadSeg → relocation → segment chain → CreateProc
object_file_format.md	167	✅ Adequate	HUNK_UNIT, multi-section, linker archives
hunk_ext_deep_dive.md	164	✅ Adequate	HUNK_EXT exports/imports/commons
hunk_debug_info.md	163	✅ Adequate	HUNK_SYMBOL, HUNK_DEBUG, stabs format

04 — Linking & Library Integration

Article	Lines	Status	Notes
library_structure.md	432	✅ Deep	JMP table, MakeLibrary, complete library creation walkthrough
shared_libraries_runtime.md	430	✅ Deep	OpenLibrary resolution, ramlib, version negotiation
register_conventions.md	315	✅ Adequate	Register ABI: integer, FPU, varargs, __saveds
startup_code.md	209	✅ Adequate	Entry contract, CLI vs WB, WBStartup message
inline_stubs.md	198	✅ Adequate	Inline stubs: pragma, inline asm, __reg
lvo_table.md	194	✅ Adequate	JMP table layout, complete exec LVO table
compiler_stubs.md	188	✅ Adequate	SAS/C, GCC, VBCC call pattern comparison
fd_files.md	172	✅ Adequate	FD/SFD format, LVO calculation
link_libraries.md	172	✅ Adequate	Static linking: amiga.lib, libnix, startup glue
setfunction.md	158	✅ Adequate	Runtime function patching, chaining, removal

05 — Reverse Engineering

Article	Lines	Status	Notes
patching_techniques.md	228	✅ Adequate	Surgical binary patching: hex search, ADF patching
methodology.md	217	✅ Deep	Step-by-step RE workflow: static → dynamic → reconstruction
ida_setup.md	190	✅ Adequate	IDA Pro config for 68k/Amiga: loaders, plugins
compiler_fingerprints.md	183	✅ Adequate	Compiler identification by code patterns
static/api_call_identification.md	532	✅ Deep	API call pattern recognition — complete with Mermaid, decision guide, antipatterns, cookbook
static/m68k_codegen_patterns.md	399	✅ Deep	68k code generation idiom catalog — complete with StormC/Aztec, Mermaid flowchart, cookbook
static/library_jmp_table.md	381	✅ Deep	Library LVO table identification techniques — complete with third-party reconstruction, Python scripts
static/struct_recovery.md	278	✅ Deep	Struct layout reconstruction from disassembly — complete with IDA Python batch annotator
dynamic/live_memory_probing.md	263	✅ Deep	Runtime memory inspection techniques — complete with Mermaid, safe probing rules, cookbook
dynamic/setfunction_patching.md	323	✅ Deep	Dynamic SetFunction interception — complete with before/after Mermaid, trampoline patterns, cookbook
case_studies/ramdrive_device.md	129	✅ Deep	Real-world RE walkthrough: RAMDrive reverse engineering
static/hunk_reconstruction.md	247	✅ Deep	HUNK binary reconstruction from memory — complete with antipatterns, Python extraction scripts
static/string_xref_analysis.md	258	✅ Deep	String cross-reference analysis — complete with Mermaid, library mapping cookbook, Pascal string handling
dynamic/serial_debug.md	178	✅ Deep	Serial debug output techniques — complete with Mermaid, baud rate pitfalls, host-side capture
dynamic/enforcer_mungwall.md	215	✅ Deep	Enforcer/MungWall runtime error detection — complete with decision guide, antipatterns, cross-platform comparison
static/asm68k_binaries.md	924	⚠️ Adequate	Hand-written assembly RE: demos, games, bootblocks, hardware-banging code — substantial research content added
static/ansi_c_reversing.md	603	⚠️ Adequate	ANSI C RE: struct recovery, control flow reconstruction, library anchoring — BPTR + SAS/C convention details added
static/cpp_vtables_reversing.md	745	⚠️ Adequate	C++ OOP RE: vtables, inheritance hierarchies, RTTI, name mangling — GCC vtable layout + C++ ABI details added
static/other_languages.md	679	⚠️ Adequate	Non-C languages: AMOS, Blitz Basic, Amiga E, Modula-2, FORTH, ARexx — JForth corrected + BlitzLib table + E object layout added

Per-Compiler RE	Lines	Status	Notes
static/compilers/README.md	102	✅ Adequate	Compiler identification flowchart and comparison matrix
static/compilers/sasc.md	1006	✅ Adequate	SAS/C 5.x/6.x: LINK A5 + 9-reg save, all 4 calling conventions, register vs stack allocation, call-site patterns, IDA Python detection
static/compilers/gcc.md	742	✅ Adequate	GCC 2.95.x: .text hunk, A6 frame pointer, __CTOR_LIST__, tail-call optimization, libnix startup, register allocation/stack variable identification
static/compilers/vbcc.md	327	✅ Adequate	VBCC: No frame pointer, per-function saves, __reg(), cross-module optimization, __MERGED hunks
static/compilers/stormc.md	321	✅ Adequate	StormC / StormC++: SAS/C-compatible C, unique C++ ABI, vtable layout differences, PowerPC support
static/compilers/aztec_c.md	125	✅ Adequate	Manx Aztec C: D3-D7 save only (5 regs), D2 scratch, pre-1990 era
static/compilers/lattice_c.md	153	✅ Adequate	Lattice C 3.x/4.x: SAS/C predecessor, evolutionary markers, simpler optimizer
static/compilers/dice_c.md	135	✅ Adequate	DICE C: No frame pointer, _mainCRTStartup, fast compile speed, Matt Dillon's compiler
static/code_vs_data_disambiguation.md	698	✅ Adequate	Code vs data disambiguation: IDA/Ghidra workflows, Amiga failure modes, detection scripts

06 — Exec Kernel (exec.library)

Article	Lines	Status	Notes
multitasking.md	1156	✅ Deep	Scheduler, context switching, IPC, memory safety
interrupts.md	404	✅ Adequate	Interrupt levels 1–6, INTENA/INTREQ, CIA interrupts
io_requests.md	399	✅ Adequate	IORequest, DoIO, SendIO, AbortIO, device protocol
tasks_processes.md	379	✅ Deep	Task/Process structs, state machine, creation
memory_management.md	376	✅ Deep	AllocMem, FreeMem, MemHeader, memory types, pools
signals.md	348	✅ Deep	AllocSignal, SetSignal, Wait, signal bit allocation
message_ports.md	336	✅ Adequate	MsgPort, PutMsg, GetMsg, WaitPort
lists_nodes.md	335	✅ Adequate	MinList/List/Node traversal, Insert/Remove operations
exceptions_traps.md	320	✅ Adequate	M68k exception vectors, Trap handlers, Guru codes
library_system.md	311	✅ Adequate	Library node, OpenLibrary lifecycle
resident_modules.md	301	✅ Adequate	RomTag, RTF_AUTOINIT, FindResident
semaphores.md	292	✅ Adequate	SignalSemaphore, shared/exclusive locking
library_vectors.md	253	✅ Adequate	JMP table, LVO offsets, MakeFunctions, SetFunction
exec_base.md	250	✅ Adequate	ExecBase at $4, system lists, hardware abstraction

07 — DOS (dos.library)

Article	Lines	Status	Notes
filesystem.md	1246	✅ Deep	Tier 2 upgrade: OFS/FFS/PFS3/SFS/FFS2 deep-dive, RDB, Kickstart, multi-boot, fragmentation, partition IDs & on-disk layout, ADF reader, 5 antipatterns, 12 FAQ
locks_examine.md	382	✅ Adequate	Lock semantics, ExNext/ExAll, named antipatterns
file_io.md	285	✅ Adequate	Open/Close/Read/Write/Seek, buffered I/O, FileInfoBlock
cli_shell.md	949	✅ Deep	CLI/Shell: architecture Mermaid, BCPL→C history, pipes (sequential temp files), I/O redirection operators, 7-pattern script cookbook (Safe Copy, Hardware Detection, Backup, Multi-Volume, File Loop, Wait-for-Volume, Toggle), ReadArgs API deep dive with template qualifiers, resident commands, shell environment (startup files, local/global vars, aliases, prompt customization), CON: window options & ANSI escape sequences, 24-item built-in commands table, 12 best practices, 4 named antipatterns (Naked WARN, Phantom PORT, Dot-Eater, Infinite Pipe), 4 pitfalls, historical context (BCPL/TRIPOS), modern analogies, 7 FAQ
packet_system.md	93	✅ Adequate	DosPacket wire format, ACTION_* codes, handler protocol
process_management.md	89	✅ Adequate	CreateNewProc, SystemTagList, Execute
error_handling.md	89	✅ Adequate	IoErr, Fault, PrintFault, complete error code table
dos_base.md	77	✅ Adequate	DosLibrary structure, RootNode, BCPL heritage
pattern_matching.md	77	✅ Adequate	ParsePattern, MatchPattern, wildcard syntax
environment.md	67	✅ Adequate	GetVar/SetVar, local/global/persistent env

08 — Graphics (graphics.library)

Article	Lines	Status	Notes
pixel_conversion.md	1482	✅ Deep	Chunky↔Planar: naive, Kalms, Copper Chunky, Akiko, GPU swizzle — exemplary
blitter_programming.md	980	✅ Deep	Blitter deep dive: minterms, cookie-cut, line draw, fill mode
animation.md	804	✅ Deep	GEL system: BOBs, VSprites, AnimObs, collision, double buffering
display_modes.md	645	✅ Deep	Tier 2 upgrade: ModeID flowchart, CRT vs flat-panel, 5 antipatterns, FPGA impact
bitmap.md	598	✅ Deep	Tier 2 upgrade: AllocBitMap lifecycle, interleaved layout, cookbook
views.md	469	✅ Deep	Tier 2 upgrade: 3-stage Mermaid pipeline, 3 antipatterns, GPU analogies
ham_ehb_modes.md	442	✅ Adequate	HAM6/HAM8 encoding, EHB half-brite, FPGA decoder logic
rastport.md	403	✅ Adequate	RastPort drawing context, layer clipping, text pipeline
copper_programming.md	319	✅ Deep	Copper deep dive: copper list construction, gradient, raster effects
sprites.md	582	✅ Deep	Tier 3 #15 upgrade: DMA timing, CLXCON/CLXDAT collision, V39 ExtSprite API, decision flowchart, 5 named antipatterns, multiplexing techniques, real-world use cases, FPGA notes, competitive landscape
gfx_base.md	237	✅ Adequate	GfxBase, chipset detection, display pipeline overview
text_fonts.md	708	✅ Deep	ColorFont layout, Compugraphic outlines, font scaling/aspect, 3 cookbooks, 4 antipatterns, 4 pitfalls, historical + modern analogies
copper.md	124	✅ Adequate	Copper coprocessor basics, instruction format, UCopList
blitter.md	109	✅ Adequate	Blitter DMA engine basics, minterms, BltBitMap

09 — Intuition

Article	Lines	Status	Notes
idcmp.md	1060	✅ Deep	Event architecture, shared ports, antipatterns, cookbook — exemplary
input_events.md	850	✅ Deep	Handler chain, QoS/priority, Commodities, latency analysis
commodities.md	769	✅ Deep	Tier 1 creation: Exchange, hotkeys, CxObjects, brokers
screens.md	992	✅ Deep	Decision guide, 5 antipatterns, 3 cookbooks (flipping, borderless, PAL/NTSC), historical + modern analogies, use cases, 7 FAQ
boopsi.md	505	✅ Adequate	OOP dispatcher, ICA interconnection, custom class tutorial
gadgets.md	804	✅ Deep	5 antipatterns, GadTools→BOOPSI migration, form cookbook, timeline, modern analogies, use cases, 6 FAQ
menus.md	695	✅ Deep	Render chain diagram, 5 antipatterns, lifecycle cookbook, historical + modern analogies, use cases, 6 FAQ
windows.md	778	✅ Deep	5 named antipatterns, window type decision guide, 3 cookbooks (resizable, borderless, shared port), historical + modern analogies, use cases, 7 FAQ
requesters.md	370	✅ Adequate	EasyRequest, ASL file/font/screenmode dialogs
intuition_base.md	267	✅ Adequate	IntuitionBase, ViewLord, LockIBase

MUI Framework (in frameworks/mui/):

Article	Lines	Status	Notes
README.md	1160	✅ Deep	Comprehensive MUI overview and documentation index
02-architecture.md	529	✅ Deep	MUI architecture: BOOPSI classes, OOP design
05-layout-system.md	478	✅ Deep	MUI layout: HGroup, VGroup, weight system
12-reference-snippets.md	428	✅ Deep	MUI reference code collection
06-widgets-overview.md	374	✅ Adequate	Widget catalog and usage
09-custom-classes.md	292	✅ Adequate	MUI custom class development
11-advanced-patterns.md	282	✅ Adequate	Advanced MUI patterns
10-events-and-notifications.md	278	✅ Adequate	MUI event system
03-getting-started.md	273	✅ Adequate	MUI quick-start guide
04-core-concepts.md	235	✅ Adequate	Core MUI concepts
07-windows-and-applications.md	213	✅ Adequate	Window and application management
08-menus.md	211	✅ Adequate	MUI menu system
01-introduction.md	133	✅ Adequate	MUI introduction

10 — Devices

Article	Lines	Status	Notes
audio.md	945	✅ Deep	Tier 2 upgrade: 5 antipatterns, MOD deep-dive, 14-bit Paula, cookbook, FPGA impact
timer.md	853	✅ Deep	Tier 2 upgrade: 8 antipatterns, 6-pattern cookbook, decision flowchart, FPGA impact
scsi.md	287	✅ Adequate	Per-model HDD interfaces, Gayle bandwidth, TD64/NSD
console.md	470	✅ Deep	Decision guide, TUI/progress bar cookbooks, antipatterns, pitfalls, 6 FAQ
input.md	216	✅ Adequate	Input handler chain, Commodities Exchange
keyboard.md	179	✅ Adequate	CIA-A handshake, raw key codes, reset sequence, FPGA notes
trackdisk.md	428	✅ Deep	MFM encoding, 16-command reference, antipatterns, FPGA/MiSTer impact, 6 FAQ
parallel.md	149	✅ Adequate	Centronics parallel port: CIA-A Port B
serial.md	130	✅ Adequate	UART/RS-232: CIA registers, baud rate, serial debugging
gameport.md	130	✅ Adequate	Joystick/mouse: quadrature decoding, controller types

11 — Libraries

Article	Lines	Status	Notes
iffparse.md	1031	✅ Deep	Tier 3 upgrade: nesting diagrams, ILBM/EHB pitfalls, PBM patterns
datatypes.md	839	✅ Deep	Tier 1 creation: NewDTObject/LoadDTObject/GetDTAttrs
amigaguide.md	760	✅ Deep	Tier 1 creation: .guide format, @commands, ARexx integration
diskfont.md	619	✅ Deep	Bitmap font deep dive: .font format, glyph layout, color fonts
translator.md	536	✅ Deep	Tier 1 creation: phonetic translation, narrator.device
mathffp.md	468	✅ Adequate	Motorola FFP and IEEE 754 floating point formats
locale.md	265	✅ Adequate	.cd/.ct catalog system, locale-aware formatting
layers.md	739	✅ Deep	ClipRect engine, LVO API reference, backfill hooks, refresh decision guide, 4 antipatterns, ClipBlit vs ScrollRaster, historical + modern analogies
expansion.md	781	✅ Deep	Zorro II/III, expansion.library API, ConfigDev/ExpansionRom structs, DiagArea boot ROM execution, manufacturer IDs, FPGA/Emulator implementation guide, firmware complexity tiers, SCSI boot use-case walkthrough (Phase 1-4)
utility.md	203	✅ Adequate	TagItem lists, callback hooks, date/time utilities
workbench.md	194	✅ Adequate	WBStartup, AppWindow, AppIcon, AppMenuItem
icon.md	188	✅ Adequate	.info format, DiskObject, ToolTypes, true-color icons
rexxsyslib.md	176	✅ Adequate	ARexx hosting, command parsing, return codes
arexx_integration.md	1128	✅ Adequate	Complete ARexx integration guide: dispatch tables, 6 antipatterns, use-case cookbook, event loop integration
keymap.md	162	✅ Adequate	Raw-to-ASCII, KeyMap structure, dead keys

12 — Networking

Article	Lines	Status	Notes
bsdsocket.md	1057	✅ Deep	Tier 2 upgrade: WaitSelect cookbook, multi-socket patterns, performance tables
tcp_ip_stacks.md	426	✅ Adequate	Stack architecture: Amiga vs Unix, SANA-II integration, PPP/SLIP
protocols.md	245	✅ Adequate	DNS, TCP client/server, UDP, DHCP sequence
sana2.md	201	✅ Adequate	SANA-II driver spec: buffer hooks, send/receive patterns

13 — Toolchain

Article	Lines	Status	Notes
vasm_vlink.md	842	✅ Deep	Bonus upgrade: modular architecture, Devpac/PhxAss compat, linker scripts, 5 examples
vbcc.md	703	✅ Deep	Tier 1 creation: __reg() storage class, vlink integration, cross-compilation
fd_files.md	203	✅ Adequate	FD/SFD file format and LVO generation
debugging.md	191	✅ Adequate	Enforcer/MuForce, SnoopDOS, FS-UAE GDB remote, kprintf
sasc.md	156	✅ Adequate	SAS/C 6.x: pragma format, __saveds/__asm, compiler flags
stormc.md	106	✅ Adequate	StormC native IDE: C/C++, debugger, PowerPC support
gcc_amiga.md	606	✅ Deep	Platform-specific builds, Docker, flags, antipatterns, FAQ
makefiles.md	97	✅ Adequate	GCC cross-compilation make patterns, vasm/vlink, mixed C+asm
ndk.md	84	✅ Adequate	NDK versions (3.1/3.9/3.2): contents, cross-compiler integration
pragmas.md	83	✅ Adequate	SAS/C pragmas, GCC inline asm, proto headers, fd2pragma

14 — References

Article	Lines	Status	Notes
dos_lvo_table.md	169	✅ Adequate	Reference table — no narrative depth expected
custom_chip_registers.md	160	✅ Adequate	Reference table — no narrative depth expected
exec_lvo_table.md	142	✅ Adequate	Reference table — no narrative depth expected
error_codes.md	93	✅ Adequate	Error code reference table — no narrative depth expected

15 — FPU / MMU / Cache

Article	Lines	Status	Notes
fpu_architecture.md	1057	✅ Deep	Architecture deep-dive: 68881/68882 internals, 80-bit extended precision, CORDIC, Quake benchmark, AI quantization
mmu_management.md	630	✅ Deep	MMU architecture: page tables, translation pipeline, MuLib, Enforcer, VMM
cache_management.md	362	✅ Deep	CacheClearU/E, CACR, DMA coherency, CopyBack vs WriteThrough, cycle costs
68040_68060_libraries.md	327	✅ Deep	Line-F trap handlers, RomTag structure, AttnFlags detection

16 — Driver Development

Article	Lines	Status	Notes
rtg_driver.md	1020	✅ Deep	Picasso96/RTG: SetFunction patching, BoardInfo hooks, VRAM/CRTC
sana2_driver.md	220	✅ Adequate	SANA-II network device driver specification
ahi_driver.md	185	✅ Adequate	AHI retargetable audio driver interface
device_driver_basics.md	174	✅ Adequate	IORequest lifecycle, BeginIO/AbortIO, unit management

---

Summary Statistics

Status	Count
✅ Deep	73
✅ Adequate	112
⚠️ Thin	0
❌ Pending	0
Total	185

MUI framework adds 13 additional articles (4 Deep, 9 Adequate) tracked separately above. Progress: ALL TIERS COMPLETE ✅ — 30/30 items done. 73 Deep + 112 Adequate = 185 articles.

---

Recommended Execution Order

Priority	Item	Type	Effort	Status
1	Datatypes System (#1)	New Article	Large	✅ DONE
2	AmigaGuide (#2)	New Article	Medium	✅ DONE
3	commodities.library (#3)	New Article	Medium	✅ DONE
4	hardware_models.md upgrade (#6)	Upgrade	Medium	✅ DONE
5	bitmap.md upgrade (#7)	Upgrade	Medium	✅ DONE
6	bsdsocket.md upgrade (#8)	Upgrade	Medium	✅ DONE
7	VBCC Compiler (#5)	New Article	Medium	✅ DONE
8	audio.md upgrade (#9)	Upgrade	Medium	✅ DONE
9	timer.md upgrade (#10)	Upgrade	Medium	✅ DONE
10	translator.library (#4)	New Article	Medium	✅ DONE

Bonus Completed (Not in Original Scan)

Item	Description
13_toolchain/vasm_vlink.md	Upgraded from 114→842 lines: modular architecture, Devpac/PhxAss compatibility, optimization system, linker scripts, C↔asm interop, 5 worked examples, assembler comparison matrix, GitHub mirrors
11_libraries/iffparse.md	Upgraded from 271→1031 lines (in original Tier 3 #21)

What Remains

Tier 2 — ALL COMPLETE

#	File	Current
9	10_devices/audio.md	✅ DONE (945 lines)
10	10_devices/timer.md	✅ DONE (853 lines)
11	01_hardware/aga_a1200_a4000/cpu_030_040.md	✅ DONE (424 lines)
12	08_graphics/views.md	✅ DONE (469 lines)
13	08_graphics/display_modes.md	✅ DONE (645 lines)
14	07_dos/filesystem.md	✅ DONE (1246 lines)

Tier 3 — ALL COMPLETE ✅

All 11 items (including bonus iffparse.md) upgraded to Deep quality.

Tier 4 — ALL COMPLETE ✅

All 5 items created: Custom Loaders & DRM, RTG Programming, AHI Audio, Demoscene Techniques (5 sub-articles), Cross-Compilation Guide.

#	File	Current
26	05_reversing/custom_loaders_and_drm.md	500 lines — ✅ Deep
27	08_graphics/rtg_programming.md	645 lines — ✅ Deep
28	11_libraries/ahi_programming.md	737 lines — ✅ Deep
29	17_demoscene/ (section)	6 files — README(137) + copper_effects(792) + sprite_techniques(580) + pixel_tricks(667) + 3d_rendering(874) + timing_optimization(739)
30	13_toolchain/cross_compilation_guide.md	603 lines

Progress: 30 of 30 items complete (100%). ALL TIERS COMPLETE ✅