debugger.py

import time


class Debugger:
    def __init__(self, cpu, program):
        self.cpu = cpu
        self.program = program
        self.running = True

    def show_state(self):
        print("\n=== STATE ===")
        print("PC:", self.cpu.pc)
        print("REG:", self.cpu.reg)

        if self.cpu.pc < len(self.program):
            print("NEXT:", self.program[self.cpu.pc])

    def run(self):
        print("\n🧠 INTERACTIVE DEBUGGER")
        print("commands: step | run | rewind | regs | exit\n")

        while self.running:
            cmd = input("(dbg) ").strip().lower()

            if cmd == "step":
                self.cpu.step(self.program)
                self.show_state()

            elif cmd == "run":
                while not self.cpu.is_done(self.program):
                    self.cpu.step(self.program)
                    time.sleep(0.2)
                self.show_state()

            elif cmd == "rewind":
                ok = self.cpu.rewind()
                print("rewind" if ok else "no history")

            elif cmd == "regs":
                print(self.cpu.reg)

            elif cmd == "exit":
                self.running = False

            else:
                print("unknown command")