From: ham AT slip DOT net (Hamilton Feltman) Newsgroups: comp.os.msdos.djgpp Subject: Is there an interrupt on vertical sync? Date: Sun, 02 Feb 1997 06:19:49 GMT Organization: TopNotch Designs Lines: 8 Message-ID: <32f52f30.14440371@news.slip.net> Reply-To: ham AT slip DOT net NNTP-Posting-Host: sf-pm5-13-77.dialup.slip.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Hi , I've been( programming in VGA )using allegro's Vsync to wait for the blit() function, but isn't there a way to generate an Interrupt when that vertical sync occurs? That way, I won't be wasting cycles constantly polling with vsync( If that's whats happening .) Would such an interrupt be present on most x86 hardware or vga cards? Regards Hamilton