--- /dev/null
+.387
+ PUBLIC MXROWADDRESS
+MX_TEXT SEGMENT PARA PUBLIC USE16 'CODE'
+ ASSUME CS:MX_TEXT, DS:DGROUP, SS:DGROUP
+MXROWADDRESS:
+ push bp
+ mov bp,sp
+ sub sp,0
+ mov dx,3d4H
+ mov al,13H
+ mov ah,byte ptr 6[bp]
+ out dx,ax
+ xor ax,ax
+ mov sp,bp
+ pop bp
+ retf 2
+MX_TEXT ENDS
+ END