Projects · Tools & libraries
Von Neumann Machine Simulator
A teaching simulator for a simple Von Neumann machine, with a native GUI showing the CPU, registers, memory and console while programs step through.
; opcode << 8 | operand 0x0105 LOAD 5 0x0303 ADD 3 0x0A00 OUTPUT 0xFF00 HALT
A two-person Rust project that makes the fetch–decode–execute cycle visible. Programs are 16-bit words (opcode in the high byte, operand in the low byte), and the GUI shows the accumulator, program counter, MAR and MBR changing as each instruction runs.
- Views for the CPU, registers, memory, console and the instruction set.
- The instruction set is data, loaded and saved as JSON, so exercises can change it.
- A debug mode for stepping through execution.
- Arithmetic saturates instead of overflowing, and division by zero halts the machine with an error in the console, the way a student would expect.
