v0.9.3

[v0.9.3] - 2025-08-19

Bytecode Virtual Machine System

• Implemented a complete bytecode virtual machine architecture, including instruction set design, compiler frontend, and execution engine
• Added new bytecode instruction set: LoadConst, LoadLocal, StoreLocal, Add, Sub, Call, Return, and other core instructions
• A compiler that translates AST to bytecode, supporting bytecode compilation for expressions, statements, and functions
• Building a stack-based virtual machine execution engine to provide an efficient bytecode execution environment

Command-line options

• Add --cn-vm option: Execute the program using the bytecode virtual machine
• Add --cn-vm-debug option: Enable virtual machine debug mode, display detailed execution trace

Performance Optimization

• Bytecode virtual machine has higher execution efficiency compared to tree traversal interpreter
• Optimized function call mechanism, supports correct execution of recursive functions
• Improved string concatenation operations, supporting automatic conversion between strings and other types
• Complete call stack management, correctly handling parameter passing and return values

Technical Implementation

• Designed a complete bytecode instruction set, covering stack operations, arithmetic operations, comparison operations, control flow, etc
• Implemented the compiler core structure, including constant pool management and local variable table
• Built the stack-based virtual machine architecture, supporting instruction dispatch and execution
• Added call frame management, properly handling function calls and recursion

[v0.9.3] - 2025-08-19

字节码虚拟机系统

• 实现了完整的字节码虚拟机架构，包含指令集设计、编译器前端和执行引擎
• 新增字节码指令集：LoadConst、LoadLocal、StoreLocal、Add、Sub、Call、Return等核心指令
• 实现AST到字节码的编译器，支持表达式、语句、函数的字节码编译
• 构建栈式虚拟机执行引擎，提供高效的字节码执行环境

命令行选项

• 添加 --cn-vm 选项：使用字节码虚拟机执行程序
• 添加 --cn-vm-debug 选项：启用虚拟机调试模式，显示详细的执行跟踪

性能优化

• 字节码虚拟机相比树遍历解释器具有更高的执行效率
• 优化了函数调用机制，支持递归函数的正确执行
• 改进了字符串拼接操作，支持字符串与其他类型的自动转换
• 完整的调用栈管理，正确处理参数传递和返回值

技术实现

• 设计了完整的字节码指令集，涵盖栈操作、算术运算、比较操作、控制流等
• 实现了编译器核心结构，包括常量池管理和局部变量表
• 构建了栈式虚拟机架构，支持指令分发和执行
• 添加了调用帧管理，正确处理函数调用和递归

Full Changelog: CodeNothingCommunity/CodeNothing@v0.9.2...v0.9.3