mrhidee/compiler

1import gradio as gr2 3class StackVM:4    def __init__(self):5        self.stack = []6        self.output = []7 8    def reset(self):9        self.stack = []10        self.output = []11 12    def run(self, bytecode):13        self.reset()14        instructions = bytecode.strip().split('\n')15        for line_num, line in enumerate(instructions, start=1):16            parts = line.strip().split()17            if not parts:18                continue19            instr = parts[0].upper()20            try:21                if instr == "PUSH":22                    if len(parts) != 2 or not parts[1].lstrip('-').isdigit():23                        self.output.append(f"Line {line_num}: Error - Invalid PUSH instruction")24                        return25                    self.stack.append(int(parts[1]))26                elif instr == "POP":27                    if not self.stack:28                        self.output.append(f"Line {line_num}: Error - Stack underflow on POP")29                        return30                    self.stack.pop()31                elif instr in ["ADD", "SUB", "MUL", "DIV"]:32                    if len(self.stack) < 2:33                        self.output.append(f"Line {line_num}: Error - Not enough values for {instr}")34                        return35                    b = self.stack.pop()36                    a = self.stack.pop()37                    if instr == "ADD":38                        self.stack.append(a + b)39                    elif instr == "SUB":40                        self.stack.append(a - b)41                    elif instr == "MUL":42                        self.stack.append(a * b)43                    elif instr == "DIV":44                        if b == 0:45                            self.output.append(f"Line {line_num}: Error - Division by zero")46                            return47                        self.stack.append(a // b)48                elif instr == "PRINT":49                    if not self.stack:50                        self.output.append(f"Line {line_num}: Error - Stack underflow on PRINT")51                        return52                    self.output.append(f"PRINT: {self.stack[-1]}")53                else:54                    self.output.append(f"Line {line_num}: Error - Unknown instruction '{instr}'")55                    return56            except Exception as e:57                self.output.append(f"Line {line_num}: Exception - {str(e)}")58                return59        self.output.append(f"Final Stack: {self.stack}")60        return "\n".join(self.output)61 62def run_vm(code):63    vm = StackVM()64    vm.run(code)65    return "\n".join(vm.output)66 67example_code = """PUSH 1068PUSH 2069ADD70PUSH 571MUL72PRINT"""73 74iface = gr.Interface(75    fn=run_vm,76    inputs=gr.Textbox(label="Enter Bytecode", lines=10, value=example_code),77    outputs=gr.Textbox(label="VM Output"),78    title="🧠 Stack-Based Virtual Machine",79    description="Type stack-based bytecode instructions like PUSH, POP, ADD, SUB, MUL, DIV, PRINT. Click Run to execute."80)81 82iface.launch()83