Jammy vs SF2000-UAE

Jammy is a free C# Amiga emulator for Windows and Linux that aims to run Workbench, games, and demos. It lists support for A1000, A500, A500+, A600, A1200, A2000, A3000, A4000, and CD32 models, with OCS, ECS, and AGA emulation. It emulates components including the Copper, Blitter, CIA, sprites, playfields, and audio. Supported floppy image formats for reading include ADF, zipped ADF, ADZ, DMS, and RP9; ATA hard disks support reading and writing. Development tools include a debugger, disassembler, automated code analysis, and SQLite storage for disassemblies. JavaScript and Lua APIs can run code on breakpoints, and a web API supports custom user interfaces. The releases page lists Windows Alpha and Linux Alpha release 0.0.30. The project reports DMA timing problems, incomplete cycle accuracy, poor emulation of CPUs above 7 MHz, and software that does not yet work. CD32 CD-ROM and NVRAM do not work, the IPF floppy reader is broken, and there is no ARM build. Linux lacks debugging interfaces, and its scripting, web, and database APIs need more work.

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.