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- Path: sparky!uunet!sun-barr!apple!apple!netcomsv!mork!btaber
- From: btaber@netcom.com (Brian Taber)
- Newsgroups: comp.os.os2.programmer
- Subject: Re: IOPL or Accessing hardware ports
- Keywords: IOPL Ring 2
- Message-ID: <1chm64p.btaber@netcom.com>
- Date: 24 Jul 92 04:52:08 GMT
- References: <4012@news.duke.edu> <v!gmbba.feustel@netcom.com>
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- Lines: 17
-
- feustel@netcom.com (David Feustel) writes:
-
- >I gave up on trying to solve this problem and went back to writing
- >code to run in the dos box where i/o isn't restricted.
-
- There is an example program (code) in "Advanced Programmer's Guide to OS/2"
- by Thuyen Nguyen and Robert Moskal which shows how to program ports.
- The program writes to the timer and speaker ports to play the speaker
- at notes of increasing frequency (not using DosBeep). I've tried it
- and it seems to work well under 2.0.
-
- I am wondering if anyone has successfully reprogrammed the VGA in a
- fullscreen OS/2 session.
- Anyone?
-
- Brian Taber
- btaber@netcom.com
-