From: Eli Zaretskii Newsgroups: comp.os.msdos.djgpp Subject: Re: DMA access Date: Fri, 28 Jan 2000 09:26:52 +0200 Organization: NetVision Israel Lines: 12 Message-ID: <389144BC.FE27999F@is.elta.co.il> References: <001701bf690e$754e7d40$c71b15c8 AT telecomco DOT net> NNTP-Posting-Host: ras1-p45.rvt.netvision.net.il Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: news.netvision.net.il 949044417 3991 62.0.172.47 (28 Jan 2000 07:26:57 GMT) X-Complaints-To: abuse AT netvision DOT net DOT il NNTP-Posting-Date: 28 Jan 2000 07:26:57 GMT X-Mailer: Mozilla 4.7 [en] (Win98; I) X-Accept-Language: en,ru,hebrew To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Julian Rolon wrote: > > I am very confused cause function is returning segments like 1FC2 and i need > to pass physical address to a chip, so what is the physical addres of a > segment like this?? Conventional memory is usually mapped 1:1, so the physical address is the same as the logical one. In your example, the physical address is 1FC2:0000. This should be explained well enough in the FAQ, so if you read it and something is still unclear, could you please point to the specific parts that confuse you?