guzzi@uiucdcsb.CS.UIUC.EDU (10/16/85)
I think that MS-DOS has a 640k limit on the amount of memory
that it will address, which may explain why the diagnostics report
only 512k.
But, I am a bit confused. I know that the 8086 processor in the
pc6300 has 20 address bits == 1meg, but what about the video ram?
I have a pc6300 with 640k in it. The norton utilitites report the
following:
640k from hex paragraph 0000 to A000 (a hex paragraph is 16 bytes)
32k from hex paragraph B800 to C000
(some of this may be phantom memory)
I assumed that the extra 32k was the 32k of video ram. Hex paragraph
B800 is address 736k, which is right in the middle of your 1 meg of
memory. Is this 32k real memory? If not, then can you really address
all 1 meg of ram using either a ram disk or another operating system,
like XENIX?
--Mark Guzzi
University of Illinois at Urbana-Champaign
ARPA: guzzi@uicsrd.csrd.uiuc.edu
guzzi%uicsrd.csrd@uiuc.edu
guzzi%uicsrd@uiuc.arpa
CSNET: guzzi%uicsrd@uiuc
guzzi%uicsrd.csrd.uiuc.edu@csnet-relay
UUCP: {ihnp4,convex,pur-ee}!uiucdcs!guzzi
USENET: ...!{pur-ee,ihnp4}!uiucdcs!guzzi
BITNET: guzzi%uicsrd.csrd.uiuc.edu@WISCVM.BITN