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
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To: djgpp AT delorie DOT com
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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