chips
8-bit chip and system emulators in standalone C headers
...Individual chip emulators communicate through virtual pin bit masks that model hardware inputs and outputs. This approach allows complete systems to be assembled by connecting emulated components much like physical chips on a breadboard. The code uses a portable subset of C99 compatible with GCC, Clang, and Microsoft C compilers. The repository contains chip cores, complete system implementations, user-interface components, code generation tools, and utility code. Separate projects provide tests, examples, WebAssembly demonstrations, schematics, manuals, and research material. ...