Written in 100% assembly, GEM runs on MSX2 and above, but is optimized for MSX turboR.
GEM emulates the classic Gameboy with remarkable accuracy and speed.
tniNES is an open source program, licensed under the GPL (v3+), to edit and otherwise manipulate NES ROM-images in iNES-format (.NES files), used by emulators like iNES, NESticle and fwNES. tniNES is written in QuickBASIC, with MS-DOS in mind.
Inspired by Sean Young's SCROM, ROMLOAD started as a fairly simple tool to load and execute a ROM in a Konami Sound Cartridge like Snatcher and SD-Snatcher.