C++嵌入Assembler(汇编)汇编内出错?
.important { color:red; }

我在C++中插入了汇编代码,但汇编代码老报错,不知什么原因。求各位大神帮助!

代码:

#include <iostream>
using namespace std; 
int main(int argc,char *argv[]) {
 volatile int a[3] = {0,0,0};
 for (int i = 0;i < 3;i ++)
  cout << a[i] << ends;
 cout << endl;
 asm ("inc [esp + 2]");//Assembler:inc [esp + 2]   (++ a[1];)
 for (int i = 0;i < 3;i ++)
  cout << a[i] << ends;
 cout << endl;
 return 0;
}

报错信息:

(File(C:\Users\ADMINI~1\AppData\Local\Temp\ccR9LmJd.s)) Assembler messages:
(Line(42)) (File(C:\Users\ADMINI~1\AppData\Local\Temp\ccR9LmJd.s)) Error: invalid char '[' beginning operand 1 `[esp+2]'

之后我想是不是这个汇编器不支持Intel,就把那一行汇编改成了AT&T格式的:

asm ("inc [esp + 2]");//Assembler:inc [esp + 2]   (++ a[1];)

| |

\/

asm ("inc 2(%esp)");//Assembler:inc 2(%esp)   (++ a[1];)

但还是报错了:

(File(C:\Users\ADMINI~1\AppData\Local\Temp\ccEzueAV.s)) Assembler messages:
(Line(42)) (File(C:\Users\ADMINI~1\AppData\Local\Temp\ccEzueAV.s)) Error: no instruction mnemonic suffix given and no register operands; can't size instruction

本人对AT&T不熟悉,麻烦大家看看哪错了,致以感谢!

caozhy
贵阳老马马善福专业维修游泳池堵漏防水工程 之前问题解决的话,请采纳,采纳后回答新问题
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C++嵌入Assembler(汇编)汇编内出错?

<style> .important { color:red; } </style> <!--blog--> <h4><b>我在C++中插入了汇编代码,但汇编代码老报错,不知什么原因。求各位大神帮助!</b></h4> 代码: ```C++ #include <iostream> using namespace std; int main(int argc,char *argv[]) { volatile int a[3] = {0,0,0}; for (int i = 0;i < 3;i ++) cout << a[i] << ends; cout << endl; asm ("inc [esp + 2]");//Assembler:inc [esp + 2] (++ a[1];) for (int i = 0;i < 3;i ++) cout << a[i] << ends; cout << endl; return 0; } ``` 报错信息: ```Message (File(C:\Users\ADMINI~1\AppData\Local\Temp\ccR9LmJd.s)) Assembler messages: (Line(42)) (File(C:\Users\ADMINI~1\AppData\Local\Temp\ccR9LmJd.s)) Error: invalid char '[' beginning operand 1 `[esp+2]' ``` 之后我想是不是这个汇编器不支持<c class="important">Intel</c>,就把那一行汇编改成了<c class="important">AT&T</c>格式的: ``` asm ("inc [esp + 2]");//Assembler:inc [esp + 2] (++ a[1];) ``` | | \/ ``` asm ("inc 2(%esp)");//Assembler:inc 2(%esp) (++ a[1];) ``` 但还是报错了: ``` (File(C:\Users\ADMINI~1\AppData\Local\Temp\ccEzueAV.s)) Assembler messages: (Line(42)) (File(C:\Users\ADMINI~1\AppData\Local\Temp\ccEzueAV.s)) Error: no instruction mnemonic suffix given and no register operands; can't size instruction ``` </h6><b><c style="color:green">本人对<cc class="important">AT&T</cc>不熟悉,麻烦大家看看哪错了,致以感谢!</c></b></h6>

vs2017学习汇编,配置出错,我的计算机64位,能否给出详细步骤,具体点,谢谢大佬

------ 已启动生成: 项目: Project2, 配置: Debug x64 ------ 1>Assembling hello.asm... 1>hello.asm(1): error A2008: syntax error : cs 1>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\BuildCustomizations\masm.targets(50,5): error MSB3721: 命令“ml64.exe /c /nologo /Zi /Fo"x64\Debug\hello.obj" /W3 /errorReport:prompt /Tahello.asm”已退出,返回代码为 1。 1>已完成生成项目“Project2.vcxproj”的操作 - 失败。 ========== 生成: 成功 0 个,失败 1 个,最新 0 个,跳过 0 个 ==========

求解,gcc内联汇编标号编译报错

``` unsigned long strcpy0(char* dst,const char* src) { __asm__ __volatile__ ( ".intel_syntax noprefix\n" "POS2:\n" "lodsb\n" "stosb\n" "test al,al\n" "jnz POS2\n" : : :"rax","bl" ); } ``` 上面代码使用gcc编译的时候报错,请问该怎么解决: gcc -masm=intel -O3 -c -o test.o test.c test.c: Assembler messages: test.c:7: Error: symbol `POS2' is already defined test.c:7: Error: symbol `POS2' is already defined test.c:7: Error: symbol `POS2' is already defined

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