X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f X-Received: by 10.224.36.66 with SMTP id s2mr31920075qad.6.1368942870191; Sat, 18 May 2013 22:54:30 -0700 (PDT) X-Received: by 10.50.112.39 with SMTP id in7mr253657igb.17.1368942870065; Sat, 18 May 2013 22:54:30 -0700 (PDT) Newsgroups: comp.os.msdos.djgpp Date: Sat, 18 May 2013 22:54:29 -0700 (PDT) In-Reply-To: <1137560452.398133.301490@g14g2000cwa.googlegroups.com> Complaints-To: groups-abuse AT google DOT com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=71.59.228.22; posting-account=05hOMwoAAAB6R8xtiQKzEljSMzgOhVF1 NNTP-Posting-Host: 71.59.228.22 References: <1137560452 DOT 398133 DOT 301490 AT g14g2000cwa DOT googlegroups DOT com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <0ed77a97-aec8-4fde-8124-707ca9cffad1@googlegroups.com> Subject: Re: Adding 64-bit file support to DJGPP From: Jim Michaels Injection-Date: Sun, 19 May 2013 05:54:30 +0000 Content-Type: text/plain; charset=ISO-8859-1 Bytes: 2361 Lines: 22 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 On Tuesday, January 17, 2006 9:00:52 PM UTC-8, 0483218 DOT DOT DOT AT t-online DOT de wrote: > Hi! > > I would like to know how difficult it would be to add support for > 64-bit file operations to DJGPP. I suppose that DJGPP currently only > handles 32-bit file operations internally; is this assumption correct? > If yes, it would be necessary to extend the internal file handling > routines of DJGPP to 64 bit before any attempt to add support for new > APIs could be made. > > Is anyone currently working on this, or has been working on this > before? If yes, I would be interested in his assessment. If not, what > would be a good starting point? > > Regards, > > Udo opengem is the closest we've got to something usable in DOS for a GUI. - there are int13h function calls for basic disk i/o. note that this is deprecated in favor of UEFI. - there are extended int 13h function calls for LBA-based disk i.o if you don't like old severly-limited CHS. see the phoenix extended 13h disk bios calls pdf. note that this is deprecated in favor of UEFI. - there are int 21h functions which is what DJGPP is based on for 8.3 file I/O. note that MBR+BIOS calls is deprecated in favor of UEFI.