EMU8086 - Microprocessor Emulator
EMU8086 is extremely helpful for those who just begin to study assembly language. It compiles the source code and executes it on emulator step by step.
Visual interface is very easy to work with. You can watch registers, flags and memory while your program executes.
Arithmetic & Logical Unit (ALU) shows the internal work of the central processor unit (CPU).
Emulator runs programs on a Virtual PC, this completely blocks your program from accessing real hardware, such as hard-drives and memory, since your assembly code runs on a virtual machine, this makes debugging much easier.