c语言arm汇编的相关内容

C语言与ARM汇编混编

 __asm__ __volatile__内嵌汇编用法简述 在阅读C/C++原码时经常会遇到内联汇编的情况，下面简要介绍下__asm__ __volatile__内嵌汇编用法。带有C/C++表达式的内联汇编格式为： __asm__　__volatile__("Instructi...

C语言和ARM汇编语言的相互调用

1.汇编程序访问C语言全局变量全局变量只能通过地址间接调用，为了访问C语言中全局变量，首先要通过extern伪指令引入全局变量，然后将其地址装入寄存器中。对于unsigned char类型，使用LDRB/STRB访问；对于unsigned short类型，使用LDRH/STRH访问；对于un...

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更新时间 2024-05-02 12:13:31

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