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- Path: sparky!uunet!spool.mu.edu!olivea!charnel!rat!usc!cs.utexas.edu!swrinde!ringer!news
- From: dan@ennex1.eng.utsa.edu (Daniel Shelton)
- Newsgroups: comp.sys.next.misc
- Subject: Re: NeXT DSP memory
- Message-ID: <1992Nov24.030453.22572@ringer.cs.utsa.edu>
- Date: 24 Nov 92 03:04:53 GMT
- References: <1es4glINNctc@agate.berkeley.edu>
- Sender: news@ringer.cs.utsa.edu
- Reply-To: dan@ennex1.eng.utsa.edu (Daniel Shelton)
- Organization: Univ of Texas at San Antonio
- Lines: 80
- Nntp-Posting-Host: bigh.eng.utsa.edu
-
- In article <1es4glINNctc@agate.berkeley.edu> izumi@pinoko.berkeley.edu
- (Izumi Ohzawa) writes:
- > In article <1992Nov23.225548.16414@ringer.cs.utsa.edu> dan@ennex1.eng.utsa.edu (Daniel Shelton)
- > writes:
- > >In article <1992Nov23.172959.3855@pencom.com> ph@pencom.com (Patrick
- > >Hester) writes:
- > >> Does anyone know about adding DSP memory to a (non-turbo) 68040 cube?
- > >> I've checked the FAQ but no mention of DSP memory.
- > >> I'd like to pump up the DSP so I can have lots of sy
- nthesis going on at
- > >> the same time.
- > >> So if anyone knows how much memory can be added, what kind, where to
- > >> get it, prices or any other clues, please let me know. Also if you
- > >> happen to have an idea how extra memory will change the limits...
- > >
- > > You can add another 32K of memory, they will say 96K, but the DSP
- > >memory is 24 bits wide so it is only 32K, to the DSP via a SIMM module
- > >from NeXT for $195. Call them at 1-800-848-NeXT for details. Part
- > >#N7013.
- >
- > It will NOT ADD 32kwords of memory -- N7013 will REPLACE the existing
- > 8kwords of DSP RAM with 32kwords on a SIMM. So you end up with the
- > total of 32kwords (96kbytes) after installation of N7013, not
- > 40kwords = 8 (existing) + 32 (N7013). I suppose the 8k on the CPU
- > board is disabled.
- >
- >
- > Also, current 3.0 MusicKit from CCRMA will NOT use the expanded DSP RAM
- > automatically. It is hardcoded for 8kwords (It has always been for
- > previous releases). Therefore, installing N7013 will not automatically
- > increase synthesis capacity of a NeXT. I believe you must obtain the
- > MusicKit sources and change the hardcoded DSP RAM size (8k) and re-make
- > the kit. Doc mentions that auto-detection of DSP RAM size is an item
- > on the to-do list for future, but not yet supported.
- >
- > It is pretty simple to determine whether a NeXT has 8k or 32k of DSP
- > RAM at run time, but you need to run a DSP program to do this.
- > See DSPMemorySize.tar.Z on the archives.
- >
- > --
- > Izumi Ohzawa [ $BBg_78^=;(J ]
- > USMail: University of California, 360 Minor Hall, Berkeley, CA 94720
- > Telephone: (510) 642-6440 Fax: (510) 642-3323
- > Internet: izumi@pinoko.berkeley.edu (NeXT Mail OK)
-
- Thank you for the correction.
-
- Danmory can be added, what kind, where to
- > >> get it, prices or any other clues, please let me know. Also if you
- > >> happen to have an idea how extra memory will change the limits...
- > >
- > > You can add another 32K of memory, they will say 96K, but the DSP
- > >memory is 24 bits wide so it is only 32K, to the DSP via a SIMM module
- > >from NeXT for $195. Call them at 1-800-848-NeXT for details. Part
- > >#N7013.
- >
- > It will NOT ADD 32kwords of memory -- N7013 will REPLACE the existing
- > 8kwords of DSP RAM with 32kwords on a SIMM. So you end up with the
- > total of 32kwords (96kbytes) after installation of N7013, not
- > 40kwords = 8 (existing) + 32 (N7013). I suppose the 8k on the CPU
- > board is disabled.
- >
- >
- > Also, current 3.0 MusicKit from CCRMA will NOT use the expanded DSP RAM
- > automatically. It is hardcoded for 8kwords (It has always been for
- > previous releases). Therefore, installing N7013 will not automatically
- > increase synthesis capacity of a NeXT. I believe you must obtain the
- > MusicKit sources and change the hardcoded DSP RAM size (8k) and re-make
- > the kit. Doc mentions that auto-detection of DSP RAM size is an item
- > on the to-do list for future, but not yet supported.
- >
- > It is pretty simple to determine whether a NeXT has 8k or 32k of DSP
- > RAM at run time, but you need to run a DSP program to do this.
- > See DSPMemorySize.tar.Z on the archives.
- >
- > --
- > Izumi Ohzawa [ $BBg_78^=;(J ]
- > USMail: University of California, 360 Minor Hall, Berkeley, CA 94720
- > Telephone: (510) 642-6440 Fax: (510) 642-3323
- > Internet: i
-