terry@helios.ucsc.edu (Terry Ricketts) (01/17/91)
I have heard references made about the amount of memory space that the bridgeboard uses from the Amiga's pool. I have an A2286 bridgeboard & was wondering what the limits on memory expansion are due to the presence of that board. Thanks. | Terry Ricketts | Internet: terry@helios.ucsc.edu | Senior Electronics Engineer | loel@helios.ucsc.edu | Lick Observatory Electronics Lab | Phone: 408-459-2110 | University of Calif, Santa Cruz |
drysdale@cbmvax.commodore.com (Scott Drysdale) (01/17/91)
In article <11152@darkstar.ucsc.edu> terry@helios.ucsc.edu (Terry Ricketts) writes: > > I have heard references made about the amount of memory space that the >bridgeboard uses from the Amiga's pool. I have an A2286 bridgeboard & was >wondering what the limits on memory expansion are due to the presence of >that board. Thanks. the bilgeboard takes up 2 meg of autoconfig space (2088 and 2286). >| Terry Ricketts | Internet: terry@helios.ucsc.edu --Scotty -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Scott Drysdale Software Engineer Commodore Amiga Inc. UUCP {allegra|burdvax|rutgers|ihnp4}!cbmvax!drysdale PHONE - yes. "Have you hugged your hog today?" =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
peck@ral.rpi.edu (Joseph Peck) (01/17/91)
In article <759@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >In article <758@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >>In article <11152@darkstar.ucsc.edu> terry@helios.ucsc.edu (Terry Ricketts) writes: >>> >>> I have heard references made about the amount of memory space that the >>>bridgeboard uses from the Amiga's pool. I have an A2286 bridgeboard & was >>>wondering what the limits on memory expansion are due to the presence of >>>that board. Thanks. > >In another posting Scott Drysdale wrote: > >> the bilgeboard takes up 2 meg of autoconfig space (2088 and 2286). > >Sorry, my program tells only 512 KB for both. Boy, I may not be batting 1000 so far, but one of my friends with the 2088 claims that his manual states that the 2088 takes up a 2 meg chunk of autoconfig space. (boy, what an awkward sentence! :) However, you should take this with a grain of salt considering my attempt to explain where the memory of the A2630 resides :) > >-- >Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... >Commodore Frankfurt, Germany \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk Joe Peck peck@ral.rpi.edu
daveh@cbmvax.commodore.com (Dave Haynie) (01/18/91)
In article <11152@darkstar.ucsc.edu> terry@helios.ucsc.edu (Terry Ricketts) writes: > I have heard references made about the amount of memory space that the >bridgeboard uses from the Amiga's pool. I have an A2286 bridgeboard & was >wondering what the limits on memory expansion are due to the presence of >that board. Thanks. According to my system here, a BridgeBoard uses 512K of memory space. This would limit your memory expansion to 7 Megs, though more likely 6 Megs or 4 Megs, depending on what you have in the way of memory expansion boards. > >| Terry Ricketts | Internet: terry@helios.ucsc.edu -- Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests" {uunet|pyramid|rutgers}!cbmvax!daveh PLINK: hazy BIX: hazy "Don't worry, 'bout a thing. 'Cause every little thing, gonna be alright" -Bob Marley
drysdale@cbmvax.commodore.com (Scott Drysdale) (01/18/91)
In article <759@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >In article <758@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >>In article <11152@darkstar.ucsc.edu> terry@helios.ucsc.edu (Terry Ricketts) writes: >>> >>> I have heard references made about the amount of memory space that the >>>bridgeboard uses from the Amiga's pool. I have an A2286 bridgeboard & was >>>wondering what the limits on memory expansion are due to the presence of >>>that board. Thanks. >> >>When I remember correctly, it takes 256 KB from the address space. > >I looked up the output of FindConfigDev() and it told me 512 KB. > > >In another posting Scott Drysdale wrote: > >> the bilgeboard takes up 2 meg of autoconfig space (2088 and 2286). > >Sorry, my program tells only 512 KB for both. argh. what was i thinking? >Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... --Scotty -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Scott Drysdale Software Engineer Commodore Amiga Inc. UUCP {allegra|burdvax|rutgers|ihnp4}!cbmvax!drysdale PHONE - yes. "Have you hugged your hog today?" =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
drysdale@cbmvax.commodore.com (Scott Drysdale) (01/18/91)
In article <17742@cbmvax.commodore.com> drysdale@cbmvax.commodore.com (Scott Drysdale) writes: >In article <759@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >>In article <758@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >>>In article <11152@darkstar.ucsc.edu> terry@helios.ucsc.edu (Terry Ricketts) writes: >>>> >>>> I have heard references made about the amount of memory space that the >>>>bridgeboard uses from the Amiga's pool. I have an A2286 bridgeboard & was >>>>wondering what the limits on memory expansion are due to the presence of >>>>that board. Thanks. >>> >>>When I remember correctly, it takes 256 KB from the address space. >> >>I looked up the output of FindConfigDev() and it told me 512 KB. >> >> >>In another posting Scott Drysdale wrote: >> >>> the bilgeboard takes up 2 meg of autoconfig space (2088 and 2286). >> >>Sorry, my program tells only 512 KB for both. > >argh. what was i thinking? aha! i was thinking of the addresses that the bridgeboard can reside at. the bridgeboard can only live on 2 meg address boundaries. > >>Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... > > --Scotty -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Scott Drysdale Software Engineer Commodore Amiga Inc. UUCP {allegra|burdvax|rutgers|ihnp4}!cbmvax!drysdale PHONE - yes. "Have you hugged your hog today?" =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
peterk@cbmger.UUCP (Peter Kittel GERMANY) (01/18/91)
In article <9!4^$+&@rpi.edu> peck@ral.rpi.edu (Joseph Peck) writes: > >Boy, I may not be batting 1000 so far, but one of my friends with >the 2088 claims that his manual states that the 2088 takes up a ^^^^^^^^^^^^^ >2 meg chunk of autoconfig space. (boy, what an awkward sentence! :) Could you please give us precise information where this is? I just paged through my manual and couldn't find this info. You know, I have to deal with those manuals (only German version), and always like to fix any known bug. -- Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... Commodore Frankfurt, Germany \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk
peterk@cbmger.UUCP (Peter Kittel GERMANY) (01/18/91)
In article <17745@cbmvax.commodore.com> drysdale@cbmvax.commodore.com (Scott Drysdale) writes: >>> >>>Sorry, my program tells only 512 KB for both. >> >>argh. what was i thinking? > >aha! i was thinking of the addresses that the bridgeboard can reside at. the >bridgeboard can only live on 2 meg address boundaries. Hmm, is this at all allowed in the autoconfig mechanism? I always thought that autoconfig memory space is managed in 64 KB chunks. Is then a board allowed to say "No, I don't like the address that the system gave me, I WANT a 2 meg boundary!" ??? -- Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... Commodore Frankfurt, Germany \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk
drysdale@cbmvax.commodore.com (Scott Drysdale) (01/19/91)
In article <765@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >In article <17745@cbmvax.commodore.com> drysdale@cbmvax.commodore.com (Scott Drysdale) writes: >>>> >>>>Sorry, my program tells only 512 KB for both. >>> >>>argh. what was i thinking? >> >>aha! i was thinking of the addresses that the bridgeboard can reside at. the >>bridgeboard can only live on 2 meg address boundaries. > >Hmm, is this at all allowed in the autoconfig mechanism? I always >thought that autoconfig memory space is managed in 64 KB chunks. >Is then a board allowed to say "No, I don't like the address that >the system gave me, I WANT a 2 meg boundary!" ??? yes - the autoconfig protocol works in 64k chunks, so any board could locate itself on a 64K boundary no matter what it's size (i think). but the bridgeboard was designed for some reason only to go to 2 meg boundaries. i don't know why. >Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... --Scotty -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Scott Drysdale Software Engineer Commodore Amiga Inc. UUCP {allegra|burdvax|rutgers|ihnp4}!cbmvax!drysdale PHONE - yes. "Have you hugged your hog today?" =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
daveh@cbmvax.commodore.com (Dave Haynie) (01/23/91)
In article <765@cbmger.UUCP> peterk@cbmger.UUCP (Peter Kittel GERMANY) writes: >In article <17745@cbmvax.commodore.com> drysdale@cbmvax.commodore.com (Scott Drysdale) writes: >>>>Sorry, my program tells only 512 KB for both. >>aha! i was thinking of the addresses that the bridgeboard can reside at. the >>bridgeboard can only live on 2 meg address boundaries. >Hmm, is this at all allowed in the autoconfig mechanism? No. >I always thought that autoconfig memory space is managed in 64 KB chunks. >Is then a board allowed to say "No, I don't like the address that >the system gave me, I WANT a 2 meg boundary!" ??? In general, boards are required to live at their natural boundaries. This is the case for all Zorro III boards, as well as anything other than 4 or 8 meg Zorro II boards. A 4 Meg Zorro II board must be able to live at 2 or 4 meg boundaries, and an 8 Meg Zorro II board must be able to live at 8 meg boundaries or at $00200000. >-- >Best regards, Dr. Peter Kittel // E-Mail to \\ Only my personal opinions... >Commodore Frankfurt, Germany \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk -- Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests" {uunet|pyramid|rutgers}!cbmvax!daveh PLINK: hazy BIX: hazy "What works for me might work for you" -Jimmy Buffett