概述-代码生成解决语义gap 高级语言支持的概念 目标机支持的概念 bits bytes words ype value expreSsion Registers Variable procedure Stack address Function parameters Routine(sub routine概述-代码生成解决语义gap 高级语言支持的概念 Type value expression Variable procedure Function parameters 目标机支持的概念 bits bytes words Registers Stack address Routine(sub routine)