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哈佛建筑映射到HLL

[英]Harvard Architecture maps to HLL

原文 2014-02-03 18:38:04 4 1 c++/ cpu-architecture/ high-level/ von-neumann/ harvard-architecture

This is a question I have been searching for a while but I have not got a proper answer yet :( 这是我一直在寻找一段时间的问题，但我还没有得到正确答案:(

How does the Harvard Architecture map to C/C++ languages (High Level Languages)? 哈佛建筑如何映射到C / C ++语言（高级语言）？
How are they related or how does the architecture help HLLs? 它们如何相关或架构如何帮助HLL？

1 个解决方案

The only way Harvard vs Princeton architecture is really relevant to C++ is in the rule 5.2.10p8 concerning mixing function pointers and object pointers: 哈佛与普林斯顿架构与C ++真正相关的唯一方法是在规则5.2.10p8中关于混合函数指针和对象指针：

Converting a function pointer to an object pointer type or vice versa is conditionally-supported. 有条件地支持将函数指针转换为对象指针类型（反之亦然）。 The meaning of such a conversion is implementation-defined, except that if an implementation supports conversions in both directions, converting a prvalue of one type to the other type and back, possibly with different cv-qualification , shall yield the original pointer value. 这种转换的含义是实现定义的，除非实现支持两个方向的转换，将一种类型的prvalue转换为另一种类型并返回，可能具有不同的cv-qualification ，将产生原始指针值。

That rule allows C++ to be used on machines which have separate address spaces for code and data. 该规则允许C ++在具有代码和数据的单独地址空间的机器上使用。