+Ksarul Posted September 6, 2018 Share Posted September 6, 2018 You might want to experiment with DSKU as well. It was tuned for the Myarc controllers--and I believe it has the option to format both 16 and 18 sectors per track. 1 Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 23, 2020 Author Share Posted October 23, 2020 Resurrecting this thread because the question relates to the DDCC-1. I was poking around tonight and found a few subprograms in the DSR, including DIR. Guess what happens when I type CALL DIR(1) !! I cannot find that documented, so I wonder if that is in the original DSR or if it is part of the 80-track ROMs? Quote Link to comment Share on other sites More sharing options...
Shift838 Posted October 24, 2020 Share Posted October 24, 2020 1 hour ago, OLD CS1 said: Resurrecting this thread because the question relates to the DDCC-1. I was poking around tonight and found a few subprograms in the DSR, including DIR. Guess what happens when I type CALL DIR(1) !! I cannot find that documented, so I wonder if that is in the original DSR or if it is part of the 80-track ROMs? I do think it's part of the 80 track upgrade. I pulled out my original DDCC-1 manual and there is no mention of it. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted October 24, 2020 Share Posted October 24, 2020 (edited) I mentioned that several times ("favorite controller", search the forum for CALL DIR). Edit: Try it in MAME. Edited October 24, 2020 by mizapf Quote Link to comment Share on other sites More sharing options...
+mizapf Posted October 24, 2020 Share Posted October 24, 2020 The DDCC-1 offers CALL FILES, CALL LLR, CALL ILR, CALL LR, and CALL DIR by its original DSR. I'm not sure how I learned about them; I got a HFDC before, and maybe I correctly assumed that they would offer the same subprograms. The HFDC manual describes all of them ("Additional commands supported by HFDC"). 1 Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 24, 2020 Author Share Posted October 24, 2020 5 hours ago, mizapf said: I mentioned that several times ("favorite controller", search the forum for CALL DIR). Edit: Try it in MAME. Like sands through the hour glass 2 hours ago, mizapf said: The DDCC-1 offers CALL FILES, CALL LLR, CALL ILR, CALL LR, and CALL DIR by its original DSR. I'm not sure how I learned about them; I got a HFDC before, and maybe I correctly assumed that they would offer the same subprograms. The HFDC manual describes all of them ("Additional commands supported by HFDC"). Ah, I had not made the connection between the HFDC and the DDCC-1, other than the Geneve docs say the former can handle 1.44MB floppies. I am going to pull up the docs so I can see what those others do. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted October 24, 2020 Share Posted October 24, 2020 The others implement CALL INIT, LOAD, and LINK. You don't need an Editor/Assembler cartridge. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 24, 2020 Author Share Posted October 24, 2020 Reading the HFDC docs, I really wish the WHT SCSI implemented DSK emulation like in its docs. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted October 24, 2020 Share Posted October 24, 2020 People may think about Myarc whatever they like, but the DDCC-1 is running rock-solidly here for 25 years now. 1 Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 24, 2020 Author Share Posted October 24, 2020 The CALL DIR statement is enough to make it killer for me. Now, if it allowed me to catalog my SCSI drive like the HFDC does, it would be complete. That said, the one thing my BwG has over it is the clock. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted October 24, 2020 Share Posted October 24, 2020 I first thought that you can provide a string to CALL DIR in the DDCC-1 (because it did not complain), but in fact it ignores invalid arguments and takes the last drive number that you used. So when you do a CALL DIR(2), all subsequent CALL DIR("DSK2"), CALL DIR("DSK1"), CALL DIR("WHAT.EVER"), CALL DIR() lists drive 2. CALL DIR of the HFDC can correctly parse a given path. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 24, 2020 Author Share Posted October 24, 2020 Possible. I have only tried with an actual number and "SCS2" and "SCS2.GAMES". The latter two return INCORRECT STATEMENT. It also appears that any error, like a disk not in the drive, returns that error. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 24, 2020 Author Share Posted October 24, 2020 Yeah, the only request to which the DIR subprogram seems to respond is a number. Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted October 24, 2020 Share Posted October 24, 2020 3 hours ago, OLD CS1 said: Possible. I have only tried with an actual number and "SCS2" and "SCS2.GAMES". The latter two return INCORRECT STATEMENT. It also appears that any error, like a disk not in the drive, returns that error. I might be misunderstanding what you are attempting, that said the CALL DIR() is specific to the card it is called from, i.e., you cannot catalog a SCSI drive using the HFDC's call DIR subprogram. The SCSI DSR does not incorporate a CALL DIR into its programming. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 24, 2020 Author Share Posted October 24, 2020 It was a wish. It makes sense to me that you cannot have two DSRs running at the same time. At least, that is how I see how this would work. The HFDC manual is interesting, especially the PAB extension for loading into CPU RAM rather than VDP RAM. I doubt that was ported to the DDCC-1, especially since the documentation is just add-on to the TI controller docs. Quote Link to comment Share on other sites More sharing options...
+FALCOR4 Posted October 25, 2020 Share Posted October 25, 2020 Would this be of interest? I haven't tried it yet; would like to hear if someone has. I don't remember if my original Myarc DDCC-2 will read a disk that has already been formatted with 18 sectors per track or only 16 sector tracks. MYARC FDC Format routine 18 sec-track DSDD.txt 1 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted January 10, 2021 Share Posted January 10, 2021 Hi, as I had a lot of confusion today with my "slider" style DIP switch, here´s my result: BTW, any idea what the version written on the EPROM could mean ? I cannot interpret that one letter. Should I do an update ? thanks Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted January 10, 2021 Share Posted January 10, 2021 9 hours ago, Schmitzi said: BTW, any idea what the version written on the EPROM could mean @atrax27407 may know the answer as he has quite an extensive library of EPROMs. I do not recognize the checksum offhand; so long as it is the most recent 40-track eprom, you should have both 16- and 18-sector/track support. One upgrade you may want to consider is the 80-track EPROM, which allows you to also use double sides/double density/80 track disks for up to a maximum of 2880 sectors. 1 Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted January 10, 2021 Share Posted January 10, 2021 There are two EPROMs that I have. Both are designated as "V15". There are two variants - regular and the 80-trk version. There is a later version -"V18" - developed by Michael Becker but I haven't seen it and don't have a copy. 1 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted January 11, 2021 Share Posted January 11, 2021 I think it´s "F.03E", because I found an older pic from the Dude ?️♂️ And this looks similar: @atrax27407 Is this the chip where I need that adapter (TMS2532/2732) to read it out ? Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted January 11, 2021 Share Posted January 11, 2021 No adapter needed, as it looks like the chip is a standard 2764. You should be able to read it out using the EPROM burner of your personal choice (or in system using the Australian DSR reader that @atrax27407 put up a few years ago. . .). 1 Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted January 11, 2021 Share Posted January 11, 2021 I should have looked more closely at my notes. The Myarc controller is, as KSARUL said, 2764 EPROMs. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.