Amiga CD32

Overview

The Amiga CD32 is a 32-bit console built on Amiga 1200/AGA hardware with an integrated CD-ROM drive and gamepad-focused controls. Despite its limited library it remains notable as one of the earliest CD-based consoles. REG-Linux treats this platform as amigacd32 so compatible themes can show the dedicated visual set.

Technical specifications

• CPU: Motorola 68EC020 at 14.3 MHz
• RAM: 2 MB Chip RAM and optional 1 MB Fast RAM (jumper-selectable)
• Display: AGA chipset with 256 colors at 320×256 and HAM support
• Sound: Paula audio plus CD-quality Redbook playback

Supported ROM extensions

bin, cue, iso, chd

Quick reference

• ROM folder: /userdata/roms/amigacd32
• Accepted formats: .bin, .cue, .iso, .chd
• Emulators: amiberry, libretro: puae / puae2021 / uae4arm
• System group: amigacd32

BIOS

MD5 checksum	Share file path	Description	Notes
5f8924d013dd57a89cf349f4cdedc6b1	bios/kick40060.CD32	Kickstart v3.1 rev 40.060	CD32 ROM
bb72565701b1b6faece07d68ea5da639	bios/kick40060.CD32.ext	Extended CD32 ROM rev 40.060	CDTV extension
5f8924d013dd57a89cf349f4cdedc6b1	bios/amiga-os-310-cd32.rom	Alternate CD32 Kickstart	CD32 ROM
bb72565701b1b6faece07d68ea5da639	bios/amiga-ext-310-cd32.rom	Alternate CDTV extension	CDTV overlay

REG-Linux requires the above files to match the MD5 sums; mismatched or missing files cause boot failures.

ROMs

Store CD32 discs in /userdata/roms/amigacd32. The platform accepts standard disc dumps; convert to CHD if you want to save space without losing compatibility.

Emulators

amiberry

Amiberry is optimized for SBCs and shares the same REG-Linux hooks (amigacd32.videomode, amigacd32.padtokeyboard, etc.).

Amiberry configuration table

ES setting name REG-Linux.conf_key	Description => ES option key_value
LINE MODE amigacd32.amiberry_linemode	Controls scanline rendering. => SINGLE none, DOUBLE double, SCANLINES scanlines.
VIDEO RESOLUTION amigacd32.amiberry_resolution	Defines internal rendering resolution. => Low lores, High hires, Super high superhires.
SCALING METHOD amigacd32.amiberry_scalingmethod	Controls pixel filtering. => Automatic automatic, Pixelated pixelated, Smooth smooth.
REMOVE INTERLACE ARTIFACTS amigacd32.amiberry_flickerfixer	Reduces flicker on static screens. => ON True, OFF False.
AUTO HEIGHT amigacd32.amiberry_auto_height	Auto-adjusts the screen height. => ON True, OFF False.

RetroArch

RetroArch provides uniform features (shaders, overlays, rewind, etc.) across all libretro cores. Enter the Quick Menu ([HOTKEY] + south button) to change global and per-core settings.

libretro: puae

ES setting name REG-Linux.conf_key	Description => ES option key_value
AMIGA MODEL global.puae_model	Force an Amiga model. => Autodetect automatic, CD32 CD32, CDTV CDTV, etc.
CPU COMPATIBILITY global.cpu_compatibility	Improve compatibility. => Normal normal, More compatible compatible, Cycle-exact exact.
CPU MULTIPLIER global.cpu_multiplier	Increase CPU speed (double per step).
VIDEO STANDARD global.video_standard	Toggle PAL/NTSC.
VIDEO RESOLUTION global.video_resolution	Select resolution.
ZOOM MODE global.zoom_mode	Crop/expand the viewport.
FRAMESKIP global.gfx_framerate	Skip frames for smoother play.
CD BOOT HELP amigacd32.puae_cd_startup_delayed_insert	Delay CD insert to avoid boot failures. => Off disabled, On enabled.
CD TURBO SPEED amigacd32.puae_cd_speed	Reduce CD load times (may cause glitches). => Off 100, On 0.
CD PAD OPTIONS amigacd32.puae_cd32pad_options	Treat the blue button as Up. => Off disabled, On jump.

puae2021 exposes the same keys but is faster and slightly less accurate. uae4arm follows the same conventions but has fewer documented options.

Controls

Default CD32 button mapping uses a REG-Linux Retropad:

RetroArch and FS-UAE allow per-game remapping as needed.

Troubleshooting

• Verify CD32 BIOS files and MD5 checksums; mismatches prevent booting.
• Store discs in /userdata/roms/amigacd32 and ensure you launch them with a supported emulator/core.
• For emulator-level issues consult the amiberry or RetroArch documentation.