Clean up Assembly files (#1003)

a/Assembler NASM FreeBSD.asm

@@ -1,31 +1,26 @@
 section	.text
-    global _start			;must be declared for linker (ld)
+    global _start		
 
 _syscall:		
-	int	0x80		;system call
+	int	0x80	
 	ret
 
-_start:				;tell linker entry point
+_start:			
 
-	push	dword len	;message length
-	push	dword msg	;message to write
-	push	dword 1		;file descriptor (stdout)
-	mov	eax,0x4		;system call number (sys_write)
-	call	_syscall	;call kernel
+	push	dword len
+	push	dword msg
+	push	dword 1
+	mov	eax,0x4
+	call	_syscall	
 
-				;the alternate way to call kernel:
-				;push	eax
-				;call	7:0
 
-	add	esp,12		;clean stack (3 arguments * 4)
+	add	esp,12	
 
-	push	dword 0		;exit code
-	mov	eax,0x1		;system call number (sys_exit)
-	call	_syscall	;call kernel
+	push	dword 0	
+	mov	eax,0x1	
+	call	_syscall	
 
-				;we do not return from sys_exit,
-				;there's no need to clean stack
 section	.data
 
-msg	db	"Hello World",0xa	;our string
-len	equ	$ - msg			;length of our string
+msg	db	"Hello World",0xa
+len	equ	$ - msg