Xref: utzoo comp.sys.amiga:50472 comp.sys.amiga.hardware:344 Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!snorkelwacker!tut.cis.ohio-state.edu!pt.cs.cmu.edu!rochester!kodak!elmgate!jeh From: jeh@elmgate.UUCP (Ed Hanway) Newsgroups: comp.sys.amiga,comp.sys.amiga.hardware Subject: Re: A2630 questions (for Dave Haynie this time) [REPOST] Summary: Can A2630 memory be Addmem'd? Keywords: A2630 Message-ID: <1209@elmgate.UUCP> Date: 22 Feb 90 21:21:45 GMT References: <1251@crash.cts.com> <9442@cbmvax.commodore.com> <1277@bmers58.UUCP> <1287@bmers58.UUCP> <9696@cbmvax.commodore.com> <-1773786386@convex.convex.com> <9731@cbmvax.commodore.com> Sender: jeh@elmgate.UUCP Reply-To: jeh@elmgate.UUCP (Ed Hanway) Followup-To: comp.sys.amiga.hardware Organization: Eastman Kodak Company, Rochester, NY Lines: 32 Dave Haynie writes: >There aren't alot of these systems running around >with gobs of memory, but they do exist, and of course they had to put that >memory somewhere. At the time, there was no great master plan through the >90's of where things go, so it has been pretty much up to the individual >32 bit card where memory goes. If it's possible for such memory to act as >if it were a valid autoconfig device, I think it belongs in autoconfig >space, at least up to the limits of memory. That's what we did on the >A2620 and A2630. Once that space is out, autoconfig is impossible; there's >no support in Zorro II for more than 24 bit addressing, in software or >hardware. But some folks still want the memory. My guess at the time was >"how about starting at the next 16 meg chunk and working your way up". But >I see things like these extra memory cards, such as an A2630 daughterboard, >very system-specific. You're not going to add 10 daughterboards, or 5, or >even 2 to an A2630 -- you'll add one at most. So the location of the >memory is not a serious problem, and hardwiring it to link it in with AddMem >is the best solution for this kind of thing. I have a fully populated 8 meg card and a 4 meg A2630. Is there anything I can do to the A2630 to turn its autoconfig memory into addmem memory? As it is now, the A2630 autoconfigs first, then half of the RAM card autoconfigs, then I run out of autoconfig space. Obviously the RAM card can't be remapped to a 32-bit address, but are there any possibilities for the A2630? I can live with addmem, and I can live with a solution that I'll have to undo down the road when I slap a 64 meg daghterboard on the A2630 :-), but I cringe whenever I think of that wasted 4 megs just sitting there dropping in value every day. Ed Hanway Eastman Kodak Company ...!rochester!kodak!elmgate!jeh #include jeh@elmgate.UUCP jeh@elmgate.sisd.kodak.com