Copperline vs SF2000-UAE

Copperline is a free, open-source Amiga emulator for games, demos, and development, available on Linux, macOS, Windows, and in browsers. It models OCS, ECS, and AGA machines with 68000 through 68060 CPUs, plus expansion boards, hard disks, and CD drives. Its Debug workspace puts registers, disassembly, and memory beside the Amiga display, and supports reverse stepping from snapshots. Development features include scripted inputs and captures, repeatable test sessions, headless runs, a JSON-RPC control protocol, and debugging Amiga source code from Visual Studio Code. Rollback netplay supports two players on desktop or in browsers, up to four desktop players with the four-player adapter, and up to eight spectators. A libretro core supports RetroArch, including A500, A1200, and CD32 software, WHDLoad, playlists, save states, four local controller ports, and RetroArch netplay. Copperline includes the AROS Kickstart replacement, though some software needs an original Kickstart ROM. It does not support high-density Amiga floppy images or sector-based PC/CrossDOS images.

SF2000-UAE is free GPL-2.0 software that emulates an Amiga 500 with an OCS chipset and 68000 CPU on Data Frog SF2000 and GB300 handhelds running multicore firmware. Based on uae4all-psp, it uses ADF disk images and is distributed through GitHub Releases with separate handheld builds. Installation requires placing the emulator core, a Kickstart ROM, and ADF game files in specified SD-card folders; Kickstart is not included. The README recommends Kickstart 1.3, and release notes state that versions 1.3 and 2.0 work while 3.0 does not. AGA games cannot run because the emulator targets OCS. Controls map the D-pad to joystick directions, A and B to fire, L and R to disk changes, SELECT to the virtual keyboard, and START to the menu. Holding L and R for three seconds enables mouse mode. Save states are available, though interlace-mode saves cannot be loaded. Display controls provide vertical correction from -20 to +20 pixels and stretch from 0 to 40 pixels.