AmigaOS 3 and 4, emulation, drivers, and ports.
Exploration ·
A red and white ball bouncing across a purple grid sold a computer. Take it apart with live tools — the copper and the beam, colour cycling, sprites and blitter objects, the cookie-cut blit, the fight for chip RAM, and Paula's boom — and see how a 7 MHz machine made it look effortless.
Article ·
Figures, spacecraft and retro machines I have made as 3-D models with Meshy.ai and prepared for printing — mostly people as Lemmings, Amiga history and 1980s TV. This page grows as I add models.
Tool ·
Play and edit Amiga ProTracker MOD files with a replayer that follows ProTracker 2.3D tick by tick — every effect and E-command, the period table with finetunes, PAL/NTSC clocks, the A500/A1200 output and LED filters, stereo separation — with a scrolling pattern view, per-channel scopes, mute and solo, keyboard pattern editing, a sample editor with WAV import, and .MOD and WAV export.
Tool ·
One toolkit for retro disk and tape images — Amiga ADF, C64 D64/D71/D81/T64/TAP, Atari ATR and ST/MSA, Amstrad CPC and Spectrum +3 DSK, ZX TAP/TZX, BBC SSD/DSD, Apple II DOS 3.3 and ProDOS, MSX and PC FAT — auto-detected; browse, view files as hex, text in the machine's own character set, listed BASIC or pictures; add, delete and rename; create blank disks, convert, and open them in the emulators.
Tool ·
Convert a modern picture for an Amiga (OCS/ECS, EHB, HAM6, HAM8, AGA, sliced palettes with a copper list), Atari ST (incl. Spectrum 512), C64 (hires, Koala, FLI), ZX Spectrum, NES, Game Boy, CGA/EGA/VGA, Atari 8-bit or MSX — with the machine's real constraints, a live before/after view, dithering, and native files to download.
Tool ·
See who owns every colour clock of an Amiga scanline — refresh, disk, audio, sprites, bitplanes, copper, blitter and the 68000 — and how screen depth, resolution, overscan and blitter-nasty steal chip-RAM time, with per-frame and per-second budgets for PAL and NTSC.
Tool ·
Open Amiga archives in the browser — LHA/LZH (-lh0- to -lh7-), LZX, DMS disk images (every packing mode, including obfuscated ones) and Zip — list them with sizes, dates, protection bits and comments, check CRCs, extract files or everything as a ZIP, and send a DMS disk or an ADF inside an archive to the ADF explorer.
Tool ·
Work out Amiga blitter set-ups: minterms from a truth table, Venn diagram or Boolean expression (and LF back to the shortest expression), cookie-cut, masked, XOR, clear, rectangle and area-fill blits stepped word by word with shifts, masks and modulos, line mode with octants and the Bresenham registers, the DMA cost, and the register set-up as C or assembler.
Tool ·
Draw Amiga hardware sprites (3 colours, or 15 as an attached pair) and blitter objects of any depth, animate them frame by frame, import a PNG onto the palette, and export the data words with SPRxPOS/SPRxCTL, or the BOB's planes, mask and cookie-cut blitter set-up, as assembler or C.
Tool ·
Read Amiga .guide hypertext in the browser — nodes, links, bold, italic and pens, @wordwrap and @smartwrap, macros — with the Contents, Index, Help, Retrace and Browse buttons, straight from a file, an ADF disk image, or an LHA, LZX, DMS or Zip archive.
Tool ·
Open, draw and save Amiga Workbench icons — classic planar .info images in the 1.3 or 2.0+ colours, NewIcons hidden in the tooltypes, and OS 3.5 ColorIcons — with the icon type, default tool, tooltypes, stack and drawer window, PNG import and a byte-level file layout.
Tool ·
Paste 68000 assembly and see the clock cycles and bus reads/writes of every instruction from Motorola's timing tables, the total for a block or loop, and how much of an Amiga or Atari ST frame it takes.
Tool ·
An Amiga in your browser — vAmiga compiled to WebAssembly, booting the free AROS Kickstart or your own ROM. Boot your own ADF disks on an A500 or an A1200.
Tool ·
Pin-outs for over 100 connectors, each with its source — modern ones (USB-C with CC resistor values, RJ45 and PoE, RS-232, SWD/JTAG, VGA, HDMI, TRRS, Qwiic, OBD-II) and retro computer ports: Amiga Zorro and CPU slots, floppy, video, serial and keyboard; Atari 8-bit SIO, PBI and cartridge; Atari ST ACSI, MIDI and cartridge; C64 expansion, user and IEC ports; the Apple II slot, ZX Spectrum, MSX, BBC Micro, NES/SNES/Mega Drive pads, SCART, ISA, IDE and floppy.
Tool ·
Identify an Amiga Kickstart or Atari TOS ROM image — version, model, header fields, checksum (and fix it), CRC32, SHA-1 and MD5 — merge split hi/lo EPROM dumps, undo byte swapping, and decrypt Amiga Forever ROMs with their rom.key. Nothing is uploaded.
Tool ·
Assemble Motorola 68000 code in the browser and export S-records (S19/S28/S37), Intel HEX, raw binary, a C array, an Amiga hunk executable or an Atari ST .PRG; disassemble hex, binaries, S-records or Intel HEX with a byte-exact reassembly check; inspect and convert S-record files.
Tool ·
Explore Amiga .adf and .adz floppy images in the browser — bootblock, root block, block map, directory tree with dates, protection bits and comments — extract files or the whole disk as a ZIP, verify checksums, and create new OFS or FFS disks with your own files.
Article ·
How I connected a Mac to emulated and real Amigas over a serial link, built a source-level debugger and 129 MCP tools on top of it, and let Claude Code write, deploy, and debug Amiga software.
Tool ·
Every OCS, ECS and AGA custom chip register at $DFF000, searchable; bit-field decoders for DMACON, INTENA, BPLCON0–4, ADKCON, POTGO and more; a display-window and data-fetch calculator; a blitter minterm calculator; and a copper list assembler and disassembler.
Tool ·
Write 68000 assembly, build it with the real vasm assembler and vlink linker compiled to WebAssembly, and boot it on an emulated Amiga 500 (vAmiga) with the free AROS Kickstart, or your own ROM. Includes examples, a listing, a hunk view, downloadable ADFs, and the vAmiga debugger.
Tool ·
Inspect Amiga executables — hunk header, CODE/DATA/BSS hunks with CHIP and FAST flags, relocations, symbols, LINE debug info, and overlays — disassemble 68000 code with labels, turn hex into 68000 instructions, and look up any 68000 instruction's flags and cycle timings.
Tool ·
Every AmigaOS library, device, resource and BOOPSI class function from the 3.2 NDK — its LVO, registers, C prototype, and the Kickstart version that added it — with a decoder that names the jsr -nnn(a6) calls in a disassembly and generators for LVO includes, FD files and SAS/C pragmas.
Tool ·
Write an Amiga copper list and watch it run against the PAL or NTSC beam — raster bars, split palettes, per-pixel colour changes, animated with expressions — and run real blits with shifts, masks, minterms, and area fill on bitmaps you draw.
Tool ·
Design colour gradients and shaded raster bars, see them quantised to Amiga OCS/ECS, AGA, Atari ST or STE colour depth with optional dithering, and export a copper list with the line-255 wrap handled, a UCopList in C, an HBL colour table, a palette ramp, or a sine table.
Tool ·
Build FS-UAE and WinUAE / Amiberry configurations for any Amiga from the A1000 to the CD32 — CPU, chipset, memory, Kickstart, floppies, hard drives, RTG and input — with checks for combinations that will not boot, and identify Kickstart ROM files by CRC and header.
Tool ·
View Amiga IFF pictures — ILBM with HAM6, HAM8, EHB, hires and interlace, masks and pixel aspect — play 8SVX samples, browse the chunk tree of any IFF file, export PNG, and convert your own images to ILBM.
Tool ·
Compose ProTracker MOD music in the browser — pattern editor with the ProTracker keyboard, on-screen piano and MIDI, sample editor with WAV/8SVX import, recording and chip waveforms — plus Paula period/note/rate conversion, Paula periods and sample rates on PAL or NTSC, see the complete ProTracker period table with finetunes and DMA timing, and inspect and play MOD files.
Tool ·
Draw and edit 8-pixel-wide bitmap fonts for the Amiga, C64, Atari 8-bit and ST, or any microcontroller — transform glyphs, preview text on classic screens, rearrange into C64 screen-code or Atari order, and export raw ROM images, .64c, .fnt, PSF, PNG sheets, C or assembler tables, or an Amiga TextFont.
Tool ·
PAL and NTSC raster maths for the Amiga, Atari ST, Atari 8-bit, and C64 — cycles per line and frame, frame rates, µs per scanline, unit conversions, a per-frame cycle budget, and the cycles DMA steals.
Project ·
My friends from the Amiga community, reimagined as Lemmings — designed with Meshy AI from photos, printed in PLA on Bambu printers, and finished with felt-tip pens and UV resin. Plus a few guesses at what Lemmings would be up to now.
Project ·
Original games, demos, and test programs for classic AmigaOS and AmigaOS 4.1, built and debugged with Amiga DevBench.
Project ·
A cross-development environment that connects a modern machine to an emulated or real Amiga over serial — live debugging, memory inspection, remote execution, and MCP tools so Claude Code can build and drive Amiga software.
Project update ·
How a conversation with Bill Borsari became a walk-through history of the Amiga at the Vintage Computer Festival. It was built almost entirely at my home, some 2,500 people came through, and we finished the day with the Amies.
Project ·
A walk-through history of the Amiga, built for its 40th anniversary at the Vintage Computer Festival at the Computer History Museum, with the Amies awards in the evening.
