spring和jump区别,JUMP和CALL之间的区别

How is a JUMP and CALL instruction different? How does it relate to the higher level concepts such as a GOTO or a procedure call? (Am I correct in the comparison?)

This is what I think:

JUMP or GOTO is a transfer of the control to another location and the control does not automatically return to the point from where it is called.

On the other hand, a CALL or procedure/function call returns to the point from where it is called. Due to this difference in their nature, languages typically make use of a stack and a stack frame is pushed to "remember" the location to come back for each procedure called. This behaviour applies to recursive procedures too. In case of tail recursion, there is however no need to "push" a stack frame for each call.

Your answers and comments will be much appreciated.

解决方案

You're mostly right, if you are talking about CALL/JMP in x86 assembly or something similar. The main difference is:

JMP performs a jump to a location, without doing anything else

CALL pushes the current instruction pointer on the stack (rather: one after the current instruction), and then JMPs to the location. With a RET you can get back to where you were.

Usually, CALL is just a convenience function implemented using JMP. You could do something like

movl $afterJmp, -(%esp)

jmp location

afterJmp:

instead of a CALL.

spring和jump区别,JUMP和CALL之间的区别相关推荐

Spring Boot集成测试中@ContextConfiguration和@SpringApplicationConfiguration之间的区别
即使同时使用@ContextConfiguration和@SpringApplicationConfiguration批注以及SpringJUnit4ClassRunner来指定如何加载Spring应 ...
Spring MVC中@RequestParam和@PathVariable批注之间的区别？
Spring MVC框架是在Java世界中开发Web应用程序最流行的框架之一,它还提供了一些有用的注释,可以从传入的请求中提取数据并将请求映射到控制器,例如@ RequestMapping,@ Req ...
apt apt-get 区别_apt 和 aptget 之间的区别
每个 Linux 用户都知道强大的 apt 和 apt-get 命令,并且很有可能使用它来管理系统中的软件包.但是,大多数人不了解 apt 和 apt-get 之间的区别,并且经常在使用一个或另一个时 ...
python3各版本区别-Python各版本之间的区别
Python各版本之间的区别发布时间:2020-06-17 14:22:08 来源:亿速云阅读:148 作者:鸽子 Python发展至今有哪些版本和各版本的区别是: 一.系统区别: 1.Downl ...
ui和ux的区别_UX和UI之间的区别
ui和ux的区别 Here you will learn about UX vs UI i.e. difference between UX and UI. 在这里,您将了解UX vs UI,即UX和 ...
python版本之间的区别_Python各版本之间的区别
Python各版本之间的区别发布时间:2020-06-17 14:22:08 来源:亿速云阅读:161 作者:鸽子 Python发展至今有哪些版本和各版本的区别是: 一.系统区别: 1.Downl ...
台式计算机和笔记本计算机区别,电脑与电脑之间的区别还能这么大，你都知道多少呢？...
电脑与电脑之间的区别还能这么大,你都知道多少呢? 2020-12-11 10:59:01 0点赞 0收藏 0评论控制方面,平板电脑通常是触摸屏类型,换句话说,我们也可以认为2是需要通过手指输入平板电 ...
cookies和缓存的区别_Cookies和缓存之间的区别
cookies和缓存的区别 Here you will learn about difference between cookies and cache i.e. cookies vs cache. ...
spring和jump区别_jump和leap之间的区别
jump,leap,skip,spring这几个词的一般含义是"跳": 1.jump 是个通用词,不问是从高处跳到低处,或从一点跳到另一点,都可使用 I can jump off ...
Spring中Model、ModelMap及ModelAndView之间的区别
1. Model(org.springframework.ui.Model) Model是一个接口,包含addAttribute方法,其实现类是ExtendedModelMap. ExtendedMo ...

spring和jump区别,JUMP和CALL之间的区别

spring和jump区别,JUMP和CALL之间的区别相关推荐

最新文章

热门文章