GUI: Chipset
This panel controls the emulation of the Amiga's custom chipset (OCS, ECS, AGA).
Note: The layout differs between Amiberry v5.x and newer versions (v6.x/v7.x).
Selects the chipset generation to emulate:
- OCS: Original Chip Set (A500, A1000, A2000)
- ECS: Enhanced Chip Set (A500+, A600, A3000)
- AGA: Advanced Graphics Architecture (A1200, A4000, CD32)
Enables cycle-accurate emulation of the custom chips.
- Access: Emulates chip access times accurately.
- Full: Emulates internal chip logic more precisely.
- Impact: Significantly increases CPU usage. Essential for some demos and copy-protected games, but often unnecessary for WHDLoad titles.
- Enabled (Default): Offloads drawing operations to a separate thread for a significant performance boost.
- Disabled: May fix tearing/glitches in specific demos or non-standard display modes.
Determines how sprite-to-sprite or sprite-to-playfield collisions are detected.
- Sprites and Sprites vs Playfield: The default and standard behavior.
- None: Disables collision detection (performance boost, but breaks games relying on collisions).
- Full: Pixel-perfect collision (very slow, rarely needed).
- Keyboard connected: Tells the emulated Amiga that a physical keyboard is attached (leave enabled).
- Subpixel Display emulation: Enhances scrolling smoothness in rare cases but is CPU intensive.
- Immediate Blitter: Faster blitter operations (skips wait states). Incompatible with "Wait for Blitter".
- Wait for Blitter: Fixes graphics corruption in software that doesn't properly wait for blitter operations (common on fast CPUs).
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Blitter Options:
- Wait for blitter: Most compatible.
- Immediate: Faster but less accurate.
- Fast Copper: A hack to speed up Copper list processing. Improves performance on very slow devices (e.g., RPi 3) but causes glitches in many titles.