print CRLF instead of just CR

messages.asm

@@ -84,19 +84,29 @@ int 0x10
 	mov dx, 0x00	; COM1
 	int 0x14
 
-	cmp al, 0x0D 	; enter
-	je .nl
+	cmp al, 0x0D 	; enter (carriage return)
+	je .nl_lf
 
 	jmp nonewline	; all other characters
 
 .nl_reset_state:
 	mov byte[is_from_virtual_kbd], 0x0	; reset state variable
+	jmp .nl
+
+;; BIOS keyboard routines read <enter> as CR which is usually not recognized
+;; as actually beginning a new line, so anytime a CR is sent a LF is sent with
+;; it
+.nl_lf:
+	mov al, 0x0A	; line feed
+	mov ah, 0x01	; transmit char
+	int 0x14
 .nl:
 	call newline
 	jmp .loop
 
 .virtual_kbd_loop_init:
 	mov byte[is_from_virtual_kbd], 0x1	; update state variable
+;; same as regular .loop except nothing is sent to serial
 .virtual_kbd_loop:
 	;; read a character, ASCII in al
 	mov ah, 0x00