Date: Fri, 18 Sep 1992 09:47:48 +0100 From: "Neil J Long, Dept of Materials" To: DJGPP AT SUN DOT SOE DOT CLARKSON DOT EDU Cc: long AT vax DOT ox DOT ac DOT uk Subject: accessing PC memory at D000:0000 directly HI Could someone point me at a specific doc or just send me a couple of lines of example code so that I can read/write to a data acquisition card which is dual ported to the D000 segment. It is exactly like writing directly to video memory except that I cannot see how GO32 deals with this area of memory. For standard PC C compilers I set a (char far) pointer to 0xd000000. thanks Neil Long