X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f NNTP-Posting-Date: Tue, 26 Feb 2008 03:41:21 -0600 Date: Tue, 26 Feb 2008 01:41:19 -0800 From: Jim Michaels User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 Newsgroups: comp.os.msdos.djgpp Subject: Re: 64-bit int? segment-offset pointers? and biosdisk.c References: <4a-dnX9djZFzTSLanZ2dnUVZ_rmjnZ2d AT comcast DOT com> In-Reply-To: <4a-dnX9djZFzTSLanZ2dnUVZ_rmjnZ2d@comcast.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Lines: 33 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 24.20.110.103 X-Trace: sv3-eqv1HI2SXSLsctN9G0YocANPtnGkY2hsXXdb6lRJ7AHJqRzGm2/4Gb/ehCpUDZA4DvRlS2K3X8fv4Lu!oKtUwiMW/KZ089iA1CF3Ga9SEMDvTEpHbPF8+PEJp3xMXX44K/SqWT821k96MkGNSbG41+Sq+raN!evVtxnorMmjNCIEdK32SvRE6ziGY4Q== X-Complaints-To: abuse AT comcast DOT net X-DMCA-Complaints-To: dmca AT comcast DOT net X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.37 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Jim Michaels wrote: > does gcc handle a 64-bit int in 2.03? if so, what type is it called? > > I was hoping to see if I could rewrite the existing biosdisk library > with the new int13h extensions (as of 1995). > http://www.phoenix.com/NR/rdonlyres/9BEDED98-6B3F-4DAC-BBB7-FA89FA5C30F0/0/specsedd11.pdf > > contains a reference to these, which refer to LBA methods of accessing > the disk as well as chs, but using subfunctions 41-4e, and there is an > eject media check function in int 15h. similar documents exist. > > biosdisk.c contains code that is now out of date for modern sized disks. > > I found out that 64-bit int type is long long. as for the replacement for biosdisk.c, I am running into troubles. it seems everything revolves around the Disk Packet, which is a structure of size 16 bytes. the problem is, the go32 libraries seem (?) to only allow allocation and use of 1 block of dos memory at a time. I need 2: 1 for the Disk Packet, and 1 for the disk buffer the Disk Packet points to... so what do I do now? it compiles now, but that's about it. testing reveals it doesn't work. However, I do know that the interrupts themselves do work. it's my code. -- Jim Michaels for email, edit the address