From: richardson AT evansville DOT edu (Tony Richardson) Newsgroups: comp.os.msdos.djgpp Subject: Chaining Prot Mode Int From C Date: 28 Feb 2003 11:19:20 -0800 Organization: http://groups.google.com/ Lines: 15 Message-ID: <2f64dfca.0302281119.61aacade@posting.google.com> NNTP-Posting-Host: 192.195.225.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Trace: posting.google.com 1046459961 338 127.0.0.1 (28 Feb 2003 19:19:21 GMT) X-Complaints-To: groups-abuse AT google DOT com NNTP-Posting-Date: 28 Feb 2003 19:19:21 GMT To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com I want to chain to a protected mode ISR from my own ISR which is written in C, but I don't want to use _go32_dpmi_chain_protected_mode_interrupt_vector() (I want to run the default ISR every other time my ISR runs.) Is it possible to do this from C or do I need to do it from assembly? I know that I can get the selector and offset of the original ISR using _go32_dpmi_get_protected_mode_interrupt_vector(), but I can't seem to find a go32 or dpmi function that let's me call the routine. Thanks, Tony Richardson