We are here to learn about GCC inline assembly. What this inline stands for? We can instruct the compiler to insert the code of a function into the code of its callers, to the point where actually the call is to
具体参加原文:https://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html#s1 概要 在讨论GCC内联汇编之前,我们先来搞搞清楚,到底什么是内联汇编? 先看在C语言中,我们可以指定编译器将一个函数代码直接复制到调用其代码的地方执行。这种函数调用方式和默认压栈调用方式不同,我们称这种函数为内联函数。内...
内联汇编称为 inline assembly,GCC 支持在 C 代码中直接嵌入汇编代码,所以称为 GCC inline assembly。 内联汇编按格式分为两大类:基本内联汇编和扩展内联汇编。基本内联汇编没有操作数,而扩展内联汇编可以有一个或多个操作数。当在 C 函数里混合使用 C 和汇编语言时,首选扩展汇编;当汇编语言出现在模块顶级时(也...
GCC-Inline-Assembly-HOWTOwww.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html 后,好像稍微理解了一点,在此记下笔记。 内联汇编是一种在系统级编程中常见的代码类型,它将汇编代码以内联形式嵌入到c/rust等底层高级语言中,以此完成普通高级语言代码所无法完成的目标。 内联汇编的最主要应用场景就是针对...
The above describes how to get information out of a fragment of inline assembly code. So what about the reverse, getting information in? An example function that does that looks like:static __attribute__((used)) int var2; void func2(int parm) { /* Register input - volatile because has...
http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html#>>GCC内联汇编的语法1.源和目标的顺序INTEL:Op-code dst srcAT&T:Op-code src dst2.寄存器命名寄存器有前缀%... kongchung 0 9 gcc内嵌汇编 2012-05-01 19:27 − 最近在看“程序员的自我修养”,看到了gcc内嵌汇编,静态链接那章...
http://mirror.lzu.edu.cn/tldp/HOWTO/Assembly-HOWTO/ [6] Linux 中 x86 的内联汇编 http://www.ibm.com/developerworks/cn/linux/sdk/assemble/inline/index.html [7] Linux Assembly Language Programming http://mirror.lzu.edu.cn/doc/incoming/ebooks/linux-unix/Linux_EN_Original_Books ...
How to Use Inline Assembly Language in C Code https://dmalcolm.fedorapeople.org/gcc/2015-08-31/rst-experiment/how-to-use-inline-assembly-language-in-c-code.html https://www.codeproject.com/Articles/15971/Using-Inline-Assembly-in-C-C ...
In my case, I do not use any assembler files, but there of course is inline assembly in different files (both nxp provided library, but also my own code has a few lines of assembly). I guess that results in the exact same problem, where my c++ code...
另外GCC对硬件平台的支持，可以所无所不在，它不仅支持X86处理器架构, 还支持ARM, Motorola 68000, ...