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From: | Shawn Hargreaves <Shawn AT talula DOT demon DOT co DOT uk> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Help: What causes screen flash problem in Allegro 2.0? |
Date: | Tue, 7 Jan 1997 20:21:50 +0000 |
Organization: | None |
Lines: | 16 |
Distribution: | world |
Message-ID: | <QVeXC0AeBr0yEwDh@talula.demon.co.uk> |
References: | <32ccb401 DOT 3331475 AT news DOT diac DOT com> <5aqpf4$704 AT nntp DOT novia DOT net> |
<32D10D3E DOT 52DB AT novia DOT net> | |
NNTP-Posting-Host: | talula.demon.co.uk |
MIME-Version: | 1.0 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Dead_and_gone writes: >to add these two lines to your code to make it wait till the end of the >verical retrace- > >while (!(inportb(0x3DA)&0x08)); >while ((inportb(0x3DA)&0x08)); Not true. Allegro waits for the retrace automatically when you call scroll_screen(), or at least it should. If adding those two lines fixes the problem, there's a problem with Allegro, so please let me know what happens! /* * Shawn Hargreaves - shawn AT talula DOT demon DOT co DOT uk - http://www.talula.demon.co.uk/ * Ghoti: 'gh' as in 'enough', 'o' as in 'women', and 'ti' as in 'nation'. */
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