GBA
rust64
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GBA
rust64
What are some alternatives?
PSX - PlayStation Bare Metal Mips Assembly Programming
decaf-emu - Researching Wii U emulation.
SNES - SNES Assembly Programming
temu-vsb - TEMU ("Tandy Emulator") and VSB ("Virtual Sound Blaster"), two nifty MS-DOS TSR utilities originally developed by Andrew Zabolotny (Андрей Заболотный).
CLK - A latency-hating emulator of: the Acorn Electron and Archimedes, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, early PC compatibles, Sega Master System, Sinclair ZX80/81 and ZX Spectrum.
gb-test-roms - Collection of Game Boy test roms.
XTulator - XTulator is a portable, open source x86 PC emulator currently supporting the 8086 instruction set and 80186 extensions.
AArch64-Encoding - AArch64 Instructions, Opcodes and Binary Encoding
Ryujinx - Experimental Nintendo Switch Emulator written in C#
ruby - A PlayStation emulator written in C++