Path: utzoo!attcan!uunet!willett!ForthNet From: ForthNet@willett.UUCP (ForthNet articles from GEnie) Newsgroups: comp.lang.forth Subject: Third Party Support List Message-ID: <1227.UUL1.3#5129@willett.UUCP> Date: 27 Jun 90 02:30:09 GMT Organization: Latest link in the ForthNet chain. (Pgh, PA) Lines: 25 Category 18, Topic 59 Message 6 Mon Jun 25, 1990 D.RUFFER [Dennis] at 23:43 EDT Re: riddles@cm.deakin.OZ.AU (Glen Ridley) > I have just started using F83 on an XT and I am trying to get > FORTH to talk to an ADDA card. The address of the ADDA card is > $270 - $277. A memory dump of this area of memory seems to > indicate the dictionary Ah, that does not sound like a memory address on a PC to me. It should have at least 4 or 5 digits, and have something called a segment pointer to go along with it. However, it just might be an I/O address, and 8 locations might just be right. I can't remeber if F83 has a high level I/O instruction built in but it would be called something like INPUT and OUTPUT or P@ and P! or maybe even PC@ or PC!. On INTEL processors, I/O is handled on a seperate channel so you do not use memory instructions to access it. DUMP access memory so it can not be used. Let me know if you can't find anything in F83 to do it and I will dig out my archive of it and work some up for you. DaR ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu