X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: RayeR Newsgroups: comp.os.msdos.djgpp Subject: Re: PM interrupt handling - how to call old old ISR with slower rate than my new ISR Date: Sun, 04 Nov 2007 17:10:10 -0800 Organization: http://groups.google.com Lines: 10 Message-ID: <1194225010.566475.269000@y42g2000hsy.googlegroups.com> References: <1193997973 DOT 429569 DOT 16180 AT y42g2000hsy DOT googlegroups DOT com> <1194008972 DOT 850005 DOT 77660 AT k79g2000hse DOT googlegroups DOT com> <1194134888 DOT 880555 DOT 98470 AT o3g2000hsb DOT googlegroups DOT com> <472DBE4B DOT 29513 DOT 65ADC026 AT gerritvn DOT gpvno DOT co DOT za> NNTP-Posting-Host: 89.176.103.156 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Trace: posting.google.com 1194225010 12660 127.0.0.1 (5 Nov 2007 01:10:10 GMT) X-Complaints-To: groups-abuse AT google DOT com NNTP-Posting-Date: Mon, 5 Nov 2007 01:10:10 +0000 (UTC) In-Reply-To: <472DBE4B.29513.65ADC026@gerritvn.gpvno.co.za> User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.1.6) Gecko/20070802 SeaMonkey/1.1.4,gzip(gfe),gzip(gfe) Complaints-To: groups-abuse AT google DOT com Injection-Info: y42g2000hsy.googlegroups.com; posting-host=89.176.103.156; posting-account=ps2QrAMAAAA6_jCuRt2JEIpn5Otqf_w0 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: djgpp AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk > If the objective is to have a fast protected-mode interrupt handler, it won't do > to just hook INT1C since a mode switch will be required every time the timer > interrupts. Yes I want fast PM ISR so the idea is to call old RM ISR only once per n-ticks. So I could hook INT08 in PM to prevent call RM ISR. In your example do you mean r.x.ax = TIMER; should be INT1C?