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COMMODORE AMIGA 500 EMULATION SPECS

This document specifies the specific requirements for Commodore Amiga 500 emulation in the WII-64 CHASSIS environment. Amiga emulation differs from consoles because it requires a licensed operating system (Kickstart) and specific floppy configurations.

1. KICKSTART ROMS (SYSTEM CORE)

The Amiga will not boot without a BIOS file called Kickstart. Wii emulators (such as UAE4Wii) require these files to be precisely named in the /roms/amiga/bios/ folder.

Version Purpose Recommended filename
Kickstart 1.3 Amiga 500 (Highest compatibility with games) kick13.rom
Kickstart 2.04 Amiga 500+ / 600 (Newer ECS Games) kick20.rom
Kickstart 3.1 Amiga 1200 / AGA (Advanced Games and Workbench) kick31.rom

2. FILE FORMS AND DISK MANAGEMENT

Amiga games were originally on floppy disks. Emulation uses the following formats:

  • ADF (Amiga Disk File): Standard disk image. Many games require multiple disks (Disk 1, Disk 2...), requiring the use of the emulator's "Disk Swapping" function.
  • WHDLoad (LHA/HDF): Optimal way for SSD user. The games are already installed on the virtual hard disk. This eliminates floppy disk changes and speeds up loading times significantly.
  • IPF: Original copy-protected disk images (often requires a separate library).

3. CONTROLLER MODELING (INPUT MAPPING)

Since the Amiga is a computer, controlling it with the Wii Remote requires careful configuration:

  • Joystick: Wii Remote (horizontal) or Classic Controller simulates an Amiga 1-button game controller.
  • Mouse: The Wii Remote's pointer (IR sensor) simulates an Amiga mouse. This is essential in strategy and adventure games.
  • Keyboard: Wii virtual keyboard or USB keyboard (Wii supports most standard USB keyboards directly from the back port).

4. TECHNICAL OPTIMIZATION (WII SPECIFIC)

  • Video Mode: The Amiga used a 50 Hz (PAL) or 60 Hz (NTSC) signal. For best picture quality, Wii's 240p (Double Strike) mode is used on CRT TVs, matching the original Amiga experience.
  • CPU Speed: The A500 used a Motorola 68000 (7.09 MHz) processor. Wii's PowerPC can easily emulate this, but you should keep the "Cycle Exact" setting on for compatibility with older games.

5. DIRECTORY PATH ON SSD DISK

/roms/amiga/
├── bios/          <-- Kickstart-tiedostot
├── games_adf/     <-- Levykekuvat (esim. Cannon Fodder Disk 1.adf)
├── games_whd/     <-- Kiintolevyasennukset (LHA/HDF)
└── config/        <-- UAE-konfiguraatiotiedostot (.uae)