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# PUAE 2021 - RetroBIOS

Type | libretro
Classification | frozen_snapshot
Source | https://github.com/libretro/libretro-uae/tree/2.6.1
Upstream | https://github.com/GnoStiC/PUAE
Version | 2.6.1
Profiled | 2026-03-24
Cores | puae2021
Systems | commodore-amiga, commodore-amiga-cd32, commodore-cdtv

Platform details

rom_sizes: - ROM_SIZE_128: 131072 - ROM_SIZE_256: 262144 - ROM_SIZE_512: 524288 aros_fallback: True naming_conventions: - standard: kick{rev}.{model} - amiga_forever: amiga-os-{version}.rom - tosec: Kickstart v{version} rev {rev} ({year})(Commodore)({model}).rom scan_prefixes: kick, amiga-os, KS ROM source_ref: libretro/libretro-core.c:2617-2656

Model kickstart map

A500:

    - **kickstart:** kick34005.A500
    - **ext:** None

A500OG:

    - **kickstart:** kick34005.A500
    - **ext:** None

A500PLUS:

    - **kickstart:** kick37175.A500
    - **ext:** None

A600:

    - **kickstart:** kick40063.A600
    - **ext:** None

A1200:

    - **kickstart:** kick40068.A1200
    - **ext:** None

A1200OG:

    - **kickstart:** kick40068.A1200
    - **ext:** None

A2000:

    - **kickstart:** kick40063.A600
    - **ext:** None

A2000OG:

    - **kickstart:** kick34005.A500
    - **ext:** None

A4030:

    - **kickstart:** kick40068.A4000
    - **ext:** None

A4040:

    - **kickstart:** kick40068.A4000
    - **ext:** None

CDTV:

    - **kickstart:** kick34005.A500
    - **ext:** kick34005.CDTV

CD32:

    - **kickstart:** kick40060.CD32
    - **ext:** kick40060.CD32.ext

CD32FR:

    - **kickstart:** kick40060.CD32
    - **ext:** kick40060.CD32.ext

WHDLoad kickstarts

- kick33180.A500
- kick34005.A500
- kick40063.A600
- kick40068.A1200

Technical notes

Frozen snapshot of PUAE at WinUAE 2.6.1 era. Less accurate than current PUAE (5.x), intended for weaker devices. BIOS handling is identical to the current version.

PUAE is a port of UAE (Unix Amiga Emulator) to libretro, continuing E-UAE. Emulates A500, 500+, 600, 1200, 2000, 4000, CD32, and CDTV. Kickstart ROMs are loaded from the RetroArch system directory.

AROS (open-source Kickstart replacement) is available as a built-in fallback when no Kickstart ROM is found. Compatibility is limited compared to real ROMs.

The core scans the system directory for files starting with "kick", "amiga-os", or "KS ROM". Each filename is matched against a table of known naming conventions: standard (kick.A), Amiga Forever (amiga-os-.rom), and TOSEC (Kickstart v.rom). The first valid match is used.

Default kickstart per model (automatic selection): A500, A500OG, A2000OG, CDTV -> kick34005.A500 (KS 1.3) A500+ -> kick37175.A500 (KS 2.04) A600 -> kick40063.A600 (KS 3.1) A1200, A1200OG -> kick40068.A1200 (KS 3.1) A2000 -> kick40063.A600 (KS 3.1) A4030, A4040 -> kick40068.A4000 (KS 3.1) CD32, CD32FR -> kick40060.CD32 (KS 3.1) CDTV (ext) -> kick34005.CDTV CD32 (ext) -> kick40060.CD32.ext

Extended ROM handling: CD32 and CDTV require an extended ROM in addition to the main kickstart. If the main ROM filesize is <= 512 KB, the extended ROM is loaded separately. Combined ROMs (main + ext in one file) skip the extended ROM search.

WHDLoad support copies kick33180.A500, kick34005.A500, kick40063.A600, kick40068.A1200 into saves/WHDLoad/Devs/Kickstarts/ for use by WHDLoad slave files. Also copies rom.key (Amiga Forever decryption) and WHDLoad.key (license) from the system directory.

ROM search order (libretro-core.c retro_config_kickstart): 1. Exact filename in system directory 2. Amiga Forever naming (amiga-os-*.rom) 3. TOSEC modified naming (with [!] suffix) 4. TOSEC naming (without [!] suffix)

capsimg.so/capsimg.dll is an optional shared library for IPF floppy image support (SPS/CAPS format). Not a BIOS file, loaded dynamically at runtime.

Source: libretro/libretro-core.h:140-245, libretro/libretro-core.c:5534-5700, libretro/libretro-core.c:5786-5945

17 files | 5 required, 12 optional | 13 in repo, 4 missing | 9 with HLE fallback

`kick31034.A1000` -optional, HLE available, missing from repo

- System: commodore-amiga
- Size: 256.0 KB
- Aliases: `amiga-os-110-ntsc.rom`, `Kickstart v1.1 rev 31.34 (1985)(Commodore)(A1000)(NTSC).rom`
- Source: `libretro/libretro-core.h:170-174`
- Kickstart 1.1 rev 31.34 (1985) NTSC. A1000 only.

`kick32034.A1000` -optional, HLE available, missing from repo

- System: commodore-amiga
- Size: 256.0 KB
- Aliases: `amiga-os-110-pal.rom`, `Kickstart v1.1 rev 32.34 (1986)(Commodore)(A1000)(PAL).rom`
- Source: `libretro/libretro-core.h:176-179`
- Kickstart 1.1 rev 32.34 (1986) PAL. A1000 only.

`kick33180.A500` -optional, HLE available

- System: commodore-amiga
- Size: 256.0 KB
- Aliases: `amiga-os-120.rom`, `Kickstart v1.2 rev 33.180 (1986)(Commodore)(A500-A2000)[!].rom`, `Kickstart v1.2 rev 33.180 (1986)(Commodore)(A500-A1000-A2000).rom`
- Source: `libretro/libretro-core.h:182-185`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- Kickstart 1.2 rev 33.180 (1986). A500/A2000. Also used by WHDLoad.

`kick34005.A500` -required

- System: commodore-amiga
- Size: 256.0 KB
- Aliases: `amiga-os-130.rom`, `Kickstart v1.3 rev 34.5 (1987)(Commodore)(A500-A1000-A2000-CDTV)[!].rom`, `Kickstart v1.3 rev 34.5 (1987)(Commodore)(A500-A1000-A2000-CDTV).rom`
- Source: `libretro/libretro-core.h:187-190`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- Kickstart 1.3 rev 34.5 (1987). Default for A500/A2000OG/CDTV models. Also used by WHDLoad.

`kick37175.A500` -optional, HLE available

- System: commodore-amiga
- Size: 256.0 KB
- Aliases: `amiga-os-204.rom`, `Kickstart v2.04 rev 37.175 (1991)(Commodore)(A500+)[!].rom`, `Kickstart v2.04 rev 37.175 (1991)(Commodore)(A500+).rom`
- Source: `libretro/libretro-core.h:192-195`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- Kickstart 2.04 rev 37.175 (1991). Default for A500+ model.

`kick37350.A600` -optional, HLE available

- System: commodore-amiga
- Size: 256.0 KB
- Aliases: `amiga-os-205-a600.rom`, `Kickstart v2.05 rev 37.350 (1992)(Commodore)(A600HD)[!].rom`
- Source: `libretro/libretro-core.h:198-201`
- Platforms: batocera, lakka, retroarch, retropie
- Kickstart 2.05 rev 37.350 (1992). A600HD.

`kick40063.A600` -optional, HLE available

- System: commodore-amiga
- Size: 512.0 KB
- Aliases: `amiga-os-310-a600.rom`, `Kickstart v3.1 rev 40.63 (1993)(Commodore)(A500-A600-A2000)[!].rom`, `Kickstart v3.1 rev 40.63 (1993)(Commodore)(A500-A600-A2000).rom`
- Source: `libretro/libretro-core.h:203-206`
- Platforms: batocera, lakka, recalbox, retroarch, retrodeck, retropie
- Kickstart 3.1 rev 40.63 (1993). Default for A600/A2000 models. Also used by WHDLoad.

`kick39106.A1200` -optional, HLE available

- System: commodore-amiga
- Size: 512.0 KB
- Aliases: `amiga-os-300-a1200.rom`, `Kickstart v3.0 rev 39.106 (1992)(Commodore)(A1200)[!].rom`
- Source: `libretro/libretro-core.h:209-212`
- Platforms: batocera, lakka, recalbox, retroarch, retropie
- Kickstart 3.0 rev 39.106 (1992). A1200.

`kick40068.A1200` -required

- System: commodore-amiga
- Size: 512.0 KB
- Aliases: `amiga-os-310-a1200.rom`, `Kickstart v3.1 rev 40.68 (1993)(Commodore)(A1200)[!].rom`, `Kickstart v3.1 rev 40.68 (1993)(Commodore)(A1200).rom`
- Source: `libretro/libretro-core.h:214-217`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- Kickstart 3.1 rev 40.68 (1993). Default for A1200/A1200OG models. Also used by WHDLoad.

`kick39106.A4000` -optional, HLE available

- System: commodore-amiga
- Size: 512.0 KB
- Aliases: `amiga-os-300-a4000.rom`, `Kickstart v3.0 rev 39.106 (1992)(Commodore)(A4000)[!].rom`
- Source: `libretro/libretro-core.h:220-223`
- Platforms: lakka, retroarch, retropie
- Kickstart 3.0 rev 39.106 (1992). A4000.

`kick40068.A4000` -optional, HLE available

- System: commodore-amiga
- Size: 512.0 KB
- Aliases: `amiga-os-310-a4000.rom`, `Kickstart v3.1 rev 40.68 (1993)(Commodore)(A4000).rom`
- Source: `libretro/libretro-core.h:225-228`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- Kickstart 3.1 rev 40.68 (1993). Default for A4030/A4040 models.

`kick34005.CDTV` -required

- System: commodore-cdtv
- Size: 256.0 KB
- Aliases: `amiga-os-130-cdtv-ext.rom`, `CDTV Extended-ROM v1.0 (1991)(Commodore)(CDTV)[!].rom`, `CDTV Extended-ROM v1.0 (1992)(Commodore)(CDTV).rom`
- Source: `libretro/libretro-core.h:231-234`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- CDTV Extended ROM v1.0 (1991). Required as extended ROM for CDTV model. Main kickstart is kick34005.A500.

`kick40060.CD32` -required

- System: commodore-amiga-cd32
- Size: 512.0 KB
- Aliases: `amiga-os-310-cd32.rom`, `Kickstart v3.1 rev 40.60 (1993)(Commodore)(CD32).rom`
- Source: `libretro/libretro-core.h:236-239`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- CD32 Kickstart 3.1 rev 40.60 (1993). Main ROM for CD32 and CD32FR models.

`kick40060.CD32.ext` -required

- System: commodore-amiga-cd32
- Size: 512.0 KB
- Aliases: `amiga-os-310-cd32-ext.rom`, `CD32 Extended-ROM rev 40.60 (1993)(Commodore)(CD32).rom`
- Source: `libretro/libretro-core.h:241-244`
- Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- CD32 Extended ROM rev 40.60 (1993). Required when main ROM is <= 512 KB (not combined).

`rom.key` -optional, missing from repo

- System: commodore-amiga
- Source: `libretro/libretro-core.c:5887-5898`
- Amiga Forever ROM decryption key. Copied to saves/WHDLoad/Devs/Kickstarts/ for WHDLoad.

`WHDLoad.key` -optional, missing from repo

- System: commodore-amiga
- Source: `libretro/libretro-core.c:5903-5916`
- WHDLoad license key. Copied to saves/WHDLoad/L/ for registered WHDLoad use.

`WHDLoad.prefs` -optional

- System: commodore-amiga
- Source: `libretro/libretro-core.c:5920-5943`
- WHDLoad preferences. Copied to saves/WHDLoad/S/ when present.

Generated on 2026-03-25T14:56:43Z