Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/17/84; site cwruecmp.UUCP Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!decvax!cwruecmp!cmf From: cmf@cwruecmp.UUCP (Carl Fongheiser) Newsgroups: net.micro.pc Subject: Re: Digital Research GEM Message-ID: <1281@cwruecmp.UUCP> Date: Mon, 15-Jul-85 01:35:30 EDT Article-I.D.: cwruecmp.1281 Posted: Mon Jul 15 01:35:30 1985 Date-Received: Wed, 17-Jul-85 20:02:17 EDT References: <132@cybavax.UUCP> <10000009@unido.UUCP> Reply-To: cmf@cwruecmp.UUCP (Carl Fongheiser) Organization: CWRU Dept. Computer Eng., Cleveland, OH Lines: 28 You can get to GEM services through almost any language, provided two things: 1. You can get to assembly language (or otherwise execute INT instructions) 2. You can force excess memory to be deallocated through DOS. Some languages may do this for you. Many do not. GEM services are accessed by loading up some parameter arrays, loading the addresses of these arrays into registers, and executing an INT instruction (I don't remember the number offhand). The reason memory must be deallocated is that some GEM services do memory allocation, and by default, DOS allocates all available memory to an application when it is run. I hope this answers your questions. Carl Fongheiser ...!decvax!cwruecmp!cmf cmf%case@CSnet-relay.ARPA