A codegolf challenge captured my attention, Emulate an Intel 8086 CPU.

Here is the result:

Test Program

ild.c is the core that fulfill the "fetch and decode" step. It has been extracted from a personal project that will be soon available.

cpu.c offers a basic CPU initialization.

cpu_exec.c emulates an instruction previously disassembled by ild.

Please note that the video memory is not properly emulated; features such as segments and interrupts are not supported.

The program is licensed under GPL v.3.