From: "Charles Sandmann" Newsgroups: comp.os.msdos.djgpp Subject: Re: Physical memory location Date: Thu, 12 Nov 1998 19:43:04 Organization: Aspen Technology, Inc. Lines: 8 Message-ID: <364b3a48.sandmann@clio.rice.edu> References: <364AFCB0 DOT 59F6D0EB AT imec DOT be> NNTP-Posting-Host: dmcap2.aco.aspentech.com X-NewsEditor: ED-1.5.8 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com > No, not exactly. When running CWSDPMI, the linear (or logical) address > is the same as the physical. That's because only one page is used > (paging disabled). This is not true. CWSDPMI always enables paging, and the linear and physical addresses are almost never equal, except for the bottom 640K. As a matter of fact, even the ring 0 version which doesn't support virtual memory uses the page tables.