diff --git a/a/assembler_nasm_linux.asm b/a/assembler_nasm_linux.asm
index 213bb983..c038b4f9 100644
--- a/a/assembler_nasm_linux.asm
+++ b/a/assembler_nasm_linux.asm
@@ -3,16 +3,18 @@ section	.text
 
 _start:					;tell linker entry point
 
-	mov	edx,len	;message length
-	mov	ecx,msg	;message to write
-	mov	ebx,1	;file descriptor (stdout)
-	mov	eax,4	;system call number (sys_write)
-	int	0x80	;call kernel
+	xor	ebx,ebx 	;ebx=0
+	mov	ecx,msg		;address of message to write
+	lea	edx,[ebx+len]	;message length
+	lea	eax,[ebx+4]	;system call number (sys_write)
+	inc	ebx		;file descriptor (stdout)
+	int	0x80		;call kernel
 
-	mov	eax,1	;system call number (sys_exit)
-	int	0x80	;call kernel
+	xor	eax, eax	;set eax=0
+	inc	eax		;system call number (sys_exit)
+	int	0x80		;call kernel
 
-section	.data
+section	.rodata
 
 msg	db	'Hello, world!',0xa	;our string
 len	equ	$ - msg			;length of our string