代码语言：assembly

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代码描述：nasm汇编语言编写一个写入文件的代码

代码标签： 写入 文件

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

section	.text
   global _start         ;must be declared for using gcc
	
_start:                  ;tell linker entry point
   ;create the file
   mov  eax, 8
   mov  ebx, file_name
   mov  ecx, 0777        ;read, write and execute by all
   int  0x80             ;call kernel
	
   mov [fd_out], eax
    
   ; write into the file
   mov	edx,len          ;number of bytes
   mov	ecx, msg         ;message to write
   mov	ebx, [fd_out]    ;file descriptor 
   mov	eax,4            ;system call number (sys_write)
   int	0x80             ;call kernel
	
   ; close the file
   mov eax, 6
   mov ebx, [fd_out]
    
   ; write the message indicating end of file write
   mov eax, 4
   mov ebx, 1
   mov ecx, msg_done
   mov edx, len_done
   int  0x80
    
   ;open the file for reading
   mov eax, 5
   m.........完整代码请登录后点击上方下载按钮下载查看

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