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- Path: news.cac.psu.edu!usenet
- From: jbk4@email.psu.edu (The Prophet)
- Newsgroups: comp.sys.amiga.misc,comp.sys.amiga.hardware
- Subject: Re: 060 for the A2000
- Date: 11 Jan 1996 20:44:09 GMT
- Organization: Cybernetic_Expressions
- Message-ID: <4d3sqp$12fh@hearst.cac.psu.edu>
- References: <DKs0oD.MCA@gil.com.au> <wfblanDKurwt.DqI@netcom.com> <Pine.LNX.3.91.960109155459.20633B-100000@mail.inhb.co.nz>
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- In article <Pine.LNX.3.91.960109155459.20633B-100000@mail.inhb.co.nz> Ross Deeley <rossdee@inhb.co.nz> writes:
- >
- > How come GVP can have their cards add 32 bit 'extended' (= beyond the 24
- > bit address range) RAM without having to use fancy addmem commands in the
- > startup-sequence, or reboot surviving patches etc, but other
- > manufacturers can't seem to do this. (I know there is extra code in KS3.1
- > to do this, but I still only have KS2.04 in my 2000, and there is 4 megs
- > of 'extended'ram (From $01000000 to $013FFFFF) in addition to the 8 megs
- > autoconfig on my GVP combo card, and theres no addmems or anything in my
- > startup-sequence.
- >
- > Is it something to do with the fact that these boards try to use
- > addresses $80000000 and up, (Why when theres a bit less than 2 gigs space
- > from $01000000 to $7FFFFFFF, That should be enough for anybody using a
- > 680x0 processor.
-
- I thought that on some boards the memory limitation was due to the fact that
- the board only used a subset of the available address lines from the processor
- thus limiting its max memory.
-
- Jaeson K.
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- Jaeson Koszarsky Amiga 3000
- ---------------- -----------
- cyberprophet@psu.edu 68040/25Mhz
- jbk4@email.psu.edu 24Megs-ZIP
- OS3.1
-