CompuServe Thread

#WB1.2

11 messages in this thread
#46278From: John G. AtaDec 30, 1986 5:02 PM
I was under the impression that a random trashing of the track buffer would immediately cause a guru or equivalent. Is it that easy to randomly trash the the disk buffer. After all, it is considered to be encoded already, are all patterns legal? Hopfully, there is some identifying characteristic that would cause an immediate crash.
#46385From: Mike HobartDec 31, 1986 12:58 AM
Regarding the query back up this thread, you can also get further hardware details on the Amiga by getting a set of Schematics from Cardinal Software at 14840 Build America Dr. [no kidding], Woodbridge, VA 22191. They cost $24.95 for a four sheet set plus leaflet.
#46402From: Todd WeissDec 31, 1986 4:01 AM
Jeez!!!!!!!!!!!!!!!!! Why go to Cardinal when you can get them from Commodore for $15.00?????????????????? Jeez, what's this world coming to?
#46433From: Don Curtis/SYSOPDec 31, 1986 1:00 PM
Todd, The Cardinal schematics are reportedly more complete and better documented. I say reportedly 'cuz I haven't seen either but am going on what I have seen here. Don
#46448From: Todd WeissDec 31, 1986 2:17 PM
Don, Thanks for the info. The way I hear it, Cardinal translated the boards into a CAD package. I don't know about how well they documented them and I admit, C-A's package is far from perfect (they tell you so), but it is "from the horse's mouth". If anyone has or has seen the Cardinal package, please leave a message letting us know what is documented and how well. Happy New Year. Todd
#46452From: Don Curtis/SYSOPDec 31, 1986 2:52 PM
Todd, Someone left a message a while ago where they said that Cardnial actually took an Amiga apart and traced every line on it and then put the whole package into a CAD program and verified the result with the Amiga schematic package and used that to label the lines. Happy New Year! Don
#46461From: Todd WeissDec 31, 1986 4:15 PM
Don, Yeah, that sounds right, but why would that be better than the doc from Amiga, since the entire schematic seems to be included, as well as doc on expansion? Todd
#46515From: Don Curtis/SYSOPDec 31, 1986 10:06 PM
Todd, Again, let me stress, I have seen neither doc, so am not speaking from experience, but my understanding is that the Cardinal stuff is better laid out (easier to read) and had more complete..or thorough documentation. Perhaps someone who has seen one or the other can jump in and let us know if in fact the Cardinal schematics are better than those supplied by amiga. Don
#46536From: Todd WeissJan 1, 1987 1:56 AM
Don, Well, I do have the Commodore Docs and I must admit that they are anything from being easy to read! Others, please jump in at this point and let me know what's in Cardinal's docs. I can't believe that they could be better than C-A's, since I've never seen a disassembly of something that more closely relayed the author's intention than the source did. Anyway, enough is enough. I'll jump off this thread now unless someone has some insight on the situation. 'nuff said … Todd
#46552From: Larry Phillips/ICUGJan 1, 1987 3:41 AM
Todd, I have the Cardinal schematics, and have noticed at least one innaccuracy, though others have said things that make me think that I have a slightly earlier version. I have heard others say that there are more innaccuracies. All in all though, they doo look pretty darn close, and are quite large, sort of blueprint size. Great for us middle-aged types whose eyes are not what they used to be. I haven't sent off for the CBM stuff yet (except for an earlier package with expansion docs only), but will do soon. Regards, Larry.
#46779From: Todd WeissJan 2, 1987 4:31 AM
Todd Thanks for the info Larry. If all Cardinal does is provide a schematic, then I don't think there's anyway possible that they can be better or more useful than Commodore's docs. Commodore offers a fair amount of insight into future enhancements and design priorities that are probably not present in Cardinal's spec's. Please let me know if Cardinal provides anything else with their package besides a bare-bones schematic.