_asm doesnt work in C code, how to enable it

Question

_asm  
{  
//----------------------------------  
    dword_type(DYN_LOADER_START_MAGIC)  
//----------------------------------  
_main_0:  
    pushad  // save the registers context in stack  
    call _main_1  
_main_1:      
    pop ebp  
    sub ebp,offset _main_1 // get base ebp  
...... //many many assembler code line  
}  

I want to write code injection tool for Windows executables
But this _asm doesn't work gives: 64 C:\\Users\\ACharyyev\\Desktop\\test\\pemaker5\\pemaker\\Copy of loader.cpp `_asm' undeclared (first use this function)
There is asm() function seems to be work but I have to convert all vars (eg eax to %eax) and put newlines and so on, but _asm {} should work. I couldnt find anything to enable assembler in Project Properties and Compiler properties. Any idea.
Now i use DevCpp on Windows as an IDLE for this project.

Answer 1

__asm可以工作，但你仍然需要使用AT＆T，因为这是Dev-C ++支持的。