> > ROM with Kickstart 2.04 is both A500+ and A3000. Kickstart > > 2.05 came out on A600 and was only used on that one. > In fact, I've got an A600 with the 2.05 kickstart. > But I've also seen some A500+ with the old 1.3 kickstart... Hi, Dan. The A500+ you saw must have been modified by its owner. AmigaOS 1.3 and lower simply don't handle (=doesn't know about) ECS video modes. Usually this mod was installed with a tiny board and a switch, to select one between two Kickstart ROMs. I have seen an A600 modified that way (2.05/1.3), and an old A500 (1.3/1.2). It was mainly done to run older games, written in spite of Commodore's recommendations about library function calls (direct jump into ROM code instead of looking up ExecBase and branching). Many projects exist about that, including one that allowed usage of _three_ (yeah!) different chips. Something strange is puzzling me, anyway: why are there on the list two ROM chips for the 2.04? Might one of the two belong to late CDTV machines? I heard of some (very few) 2.0x CDTVs that were built before that machine was dropped. Let's go on. A1000 ROMs should be really small, because they just contain a loader to read a 256K Kickstart from "DF0:". All ROM chips after those and before 3.0 should be 512K. 3.0 and later are 1MB. Since "official" Kickstart size upto and including 1.3 should be no more than 256K (to enable usage on the A1000), the rest is where all extra routines on the 1.3 CDTV (CD controller handling, ISO9660 f/s) were placed. A500 is either 1.2 or 1.3. A500+ is 2.04. Some early A3000 are 1.3 (Commodore softkicked them when 2.0 wasn't 2.04 yet). A2000/A (Braunschweig project?) should be mainly 1.2 unless modified. A2000/B (Los Gatos project?) are 1.2 and (more likely) 1.3. A2000/C (Los Gatos? w/ECS) are 2.04 or 2.05 (don't know; 2.05 would run but there's no need of it because it was designed for A600's IDE and PCMCIA). Plain 2.0 should be A3000 only, unless another error or ignorance on my side. Don't know anything on the A1500, because it wasn't ever sold in Italy: does someone have a tech dossier on his/her personal Web pages, possibly with an image? yo, RDO - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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