>>>>> "Andre" == Andre Fachat <firstname.lastname@example.org> writes: Andre> I am wondering, having found no hard facts for my petindex: I took a good look at my 8032-SK's motherboard today, and it might answer a few of your questions. Andre> The 4032 machines (with the upgradable-to-8032 board? are there Andre> 4032 without CRTC My board has a CRTC (HD46505, presumably a renamed version of the 68/ 6545) and four "jumpers" like this: 40 40 80 7 6 5 * * * | | | | | * * * 80 8*------------* suggesting that resoldering these and changing the ROMs will give you a 4032 with 2k of video memory. Andre> What about the 8032? The reengineered schematics suggest it Andre> being 2k, mirrored 2 times ($8000 and $8800). My 8032-SK has 2k @ $8000 and open address space at @8800-8fff. Andre> Another thing: the PET is supposed to be able to blank it's Andre> screen with PIA1 CA2 (also used as IEEE EOI line). I assume Andre> that this only works for non-CRTC machines, is this correct? Well, nothing appears to happen on my 8032-SK. -- ___ . + . . . Per Olofsson ._|___|_, . . . . . + . . o o-o + . + MagerValp@Goth.Org . . + + + . - . . . o + . . . " + + . http://www.cling.gu.se/~cl3polof/
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