From:	Fadi Rifai <fadi AT kammer DOT uni-hannover DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	phys. & linear addressing?
Date:	Fri, 06 Feb 1998 15:01:19 +0100
Organization:	RRZN - Newsserver
Lines:	31
Message-ID:	<34DB17AE.95661542@kammer.uni-hannover.de>
NNTP-Posting-Host:	pcm-1.iw.uni-hannover.de
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi!

I have allocated Memory space like these way:

 host_meminfo.size=2*_256Kbyte;
 if(__dpmi_allocate_memory(&host_meminfo)==-1){
 printf(" Allocating memory failed!\n",host_meminfo.size);
 exit(2);
 };

and I can access it as following:

 Host_Mem_Selector= __dpmi_allocate_ldt_descriptors (1);;
__dpmi_set_segment_base_address(Host_Mem_Selector,host_meminfo.address);

__dpmi_set_segment_limit(Host_Mem_Selector, host_meminfo.size);

 _farsetsel(Host_Mem_Selector);
  for(DWord =0; DWord < 0x20000 ; DWord+=4)
 {
    _farnspokel(DWord, 0xa0b0c0d0);
 }

  "host_meminfo.address" contents the linear address of memory base.
How can I get the physical address of the memory base?

Thank you in advance

Fadi

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