Simple Virtual Machine Simulator in Python and C++

This simple virtual machine simulator is a Python script that demonstrates the basic functioning of a virtual machine by interpreting an assembly-like language and executing a sequence of instructions. This project provides a hands-on exploration of how virtual machines work, how they manage memory, registers, and control flow, and how instructions are processed.

The available instructions include:

• START: Initializes the VM's registers and stack.
• PUSH value: Pushes a value onto the stack.
• POP: Pops a value from the stack.
• ADD: Pops values from the stack, adds them, and pushes the result back onto the stack.
• HLT: Halts the VM, resetting its registers and stack.
• JMP value: Jumps to a specified instruction index.
• SUM: Updates the compare register based on the accumulator.
• CMP value: Compares the value in the compare register with the specified value.

How to run

from stack-based-vm import VM
# new
vm = VM()

# add instructions
vm.instructions.append("START")
vm.instructions.append("PUSH 1")
vm.instructions.append("HLT")

# run 
vm.run() # hit <Enter> to proceed