Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!apple!bbn!rochester!pt.cs.cmu.edu!andrew.cmu.edu!mp1u+ From: mp1u+@andrew.cmu.edu (Michael Portuesi) Newsgroups: comp.sys.amiga Subject: Re: Limit on ROM size Message-ID: Date: 24 Mar 89 16:28:27 GMT References: <1981NU140487@NDSUVM1> <3650@sugar.hackercorp.com> <11039@well.UUCP>, <904@atanasoff.cs.iastate.edu> Organization: Mathematics, Carnegie Mellon, Pittsburgh, PA Lines: 30 In-Reply-To: <904@atanasoff.cs.iastate.edu> jwright@atanasoff.cs.iastate.edu (Jim Wright) writes: > In article <11039@well.UUCP> ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab) writes: > > | Nice, but there's no room in the ROM for it. > | > | Leo L. Schwab -- The Guy in The Cape INET: well!ewhac@ucbvax.Berkeley.EDU > > This is something I've been wondering about. Is the Amiga (other than > the 1000) inherently limited to 256K ROMs? At the price of losing some > compatibility with 1000's, how easy is it to install larger ROMs? Could > a 512K, 1M, etc. sized be easily used or is the hardware limited to > addressing only 256K? The 500 and the 2000 can definitely support 512K of ROM, though I don't think the software designers want to do that just yet. As for A1000's, I asked this question a long time ago, and I think the answer is that the A1000 can also support 512K of ROM space, though it is not straightforward (you have to cut a trace or change a PAL or something like that). Could someone from Commodore please correct me if I am wrong, or add a few more details? -- Michael Portuesi / Information Technology Center / Carnegie Mellon University INET: mp1u+@andrew.cmu.edu / BITNET: mp1u+@andrew UUCP: ...harvard!andrew.cmu.edu!mp1u+ "You just don't get off a spaceship and run." --Avon