X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: Rod Pemberton Newsgroups: comp.os.msdos.djgpp Subject: Re: Need to hook INT 21h from a DJGPP TSR Date: Fri, 7 Oct 2005 00:04:20 +0000 (UTC) Organization: cyberjustice.org Lines: 31 Message-ID: References: <200510062313 DOT j96NDPXb004112 AT envy DOT delorie DOT com> NNTP-Posting-Host: 66.28.207.11 Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Trace: sadr.dfn.de 1128643460 24322 66.28.207.11 (7 Oct 2005 00:04:20 GMT) X-Complaints-To: usenet AT sadr DOT dfn DOT de NNTP-Posting-Date: Fri, 7 Oct 2005 00:04:20 +0000 (UTC) X-User-Real-E-Mail: nobody AT no DOT where DOT com User-Agent: http://www.cyberjustice.org To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Sigh, yes, I am very familiar. C. Sandman's kit was my first exposure to TSR Programming under DOS. That's also why I know about the problems I listed. That, and (ancient) conversations with you, C. Sandman, M. Necasek, M. Devore, and just about every other DOS and DPMI "expert" who was willing to reply. I spent months trying to get that kit to do something very similar to what he wanted with no luck. I have a directory full of about 21 TSRs with numerous amounts of unworking code. I eventually learned many of the problems stemmed from the limited _go_32 functions and there incompatibility with the _dpmi functions. So I switched to straight _dpmi calls which worked better, and still had the problems I mentioned. And, over the past five years, I've gotten much better DOS and w/DPMI but I don't think any of those problems will be easy for him to fix especially if he doesn't know assembly. I eventually found it was much easier to learn Intel assembly than to get PM TSR's to work. I wish him luck, because from my experiences, he will need it. Sincerely, Rod Pemberton -- Posted via: http://www.cyberjustice.org