********** Topic 2 Thu Aug 21, 1986 DEB [*deb!*] at 16:33 EDT SUB: SFD Handling Tips & Tricks The SFD 1001, a 1 MEG IEEE drive, can be used on both the 64 and the 128 with appropriate interfaces. Please share what you've learned about living happily ever after with yours here...! ********** ---------- Category 11, Topic 2 Message 1 Wed Aug 20, 1986 M.RUANO [Mike] (Forwarded) Anyone have info on the address that the SFD uses to store BLOCKS FREE?? Mike ---------- Category 11, Topic 2 Message 2 Thu Aug 21, 1986 GRAFIX.M [Mike Hooper] (Forwarded) After hours of plain old fashioned 'hunt-and-peek' I found it. Just INITIALIZE the drive PRINT#15,"m-r"chr$(157)chr$(67)chr$(3) get#15,b1$,dy$,b2$ BA=asc(b1$+chr$(0))+asc(d2$+chr$(0))*245 BA is BLOCKS AVAILABLE! ---------- Category 11, Topic 2 Message 5 Tue Sep 09, 1986 SALEWIT at 22:06 PDT I have no tips or tricks YET, but believe it or not, I'm STILL looking for that memory location! I've talked to many people. Nobody knows where or how to even go about finding it. The only luck I've had was a phone call to the tech at Progresive Peripherals in Colorado, and she says that the only written indication of disk RAM for the SFD is located in a file on DELPHI. Anybody that belongs to DELPHI, PLEASE,PLEASE,PLEASE HELP ME OUT! I'll pay access time if thats what it takes to get my eyes on this top secret file. Impatiently Sam Lewit ---------- Category 11, Topic 2 Message 8 Wed Sep 10, 1986 DEB [*deb!*] at 16:35 EDT Sam.... As you might imagine, I know every nook and cranny where we hide information over on Delphi....and there is *nothing* there ANYWHERE like this!!! Fiddlesticks, maybe we should get PP&S in here for a day to answer some questions? ** ---------- Category 11, Topic 2 Message 9 Wed Sep 10, 1986 GBARRETT [VISION100] at 22:23 CDT Anybody ever checked any of the Butterfield files on the SFD? I haven't looked here, but I believe he had one on QuandryLink...a text file with locations, etc...and I THOUGHT I had it...but I'm packing to move and things are kinda disorganized right now! Will look there tonight...and report back. -GaryB ---------- Category 11, Topic 2 Message 10 Thu Sep 11, 1986 SALEWIT at 21:22 PDT Well fiddlesticks indeed! Gee, I wonder what happened to that file then? Thanks so much for those that have looked for me. I DO appreciate it! I'll have to call PS&P again to see what the heck is going on. I shudder the thought of having to call Skyles. I told you this Mike, but others might be humored by it too. This is an excerp from Skyles' 'manual' on the SFD changing the device number. He has a little chart explaining which jumpers to cut for each device #. But he failed to show the jumpers for devices 12 to 15 (which an SFD is capable of), but instead has a little note that says, and I quote: "The jumpers to cut for 12 to 15 are left as an exercise for the reader" What the heck is that? I don't want to take a tutorial on jumper cutting! An exercise. HA! The only way I take that is that HE (Bob Skyles) did not know himself! What a joke. Anyway, I'll get back to you all on what PS&P has to say about this mysterious and only file on the SFD. Thanks again! ---------- Category 11, Topic 2 Message 11 Fri Sep 12, 1986 DEB [*deb!*] at 01:29 EDT The other set of traces to cut for the higher device numbers include the one right NEXT to the two he did tell you about. On a 1541 there was a pair of half moon thingies, on an SFD, there is a trio. But that is a humourous way to tell your folks how to ruin their drives, I'll admit...! ** ---------- Category 11, Topic 2 Message 12 Sun Dec 21, 1986 JIM.MAC [* SysOp *] at 13:43 EST One thing I do that might save SFD owners some headaches, especially if they are using them on a BBS is check each disk's integrity after it has been formatted. I run a program that writes to every sector and if an error, (bad sector), is encountered it locks it out. This is done by writing to the BAM. Of course if you validated the disk you have to run the program again. Once the program has been run all write operations to the disk will bypass the bad sector(s). it. If I get enough requests I will polish this program up so is menu driven and upload it. -Jim ---------- Category 11, Topic 2 Message 13 Sun Dec 21, 1986 MICHAEL.M [-:SysOp:-] at 21:43 EST In conjunction with Jim's idea, the use of a good-quality disk *does* make a difference on a finicky SFD. Maxells have never let me down. ---------- Category 11, Topic 2 Message 14 Mon Dec 22, 1986 DEB [*SysOp*] at 03:08 EST ...and I use a High Density Diskette on my SFD for the BBS. We're talking 96 TPI, $35-40 per box. It only takes one trashed disk, and you'll KNOW the $4.00 per diskette is WORTH it! <> *deb!* ---------- Category 11, Topic 2 Message 15 Mon Dec 22, 1986 KEVIN-S. [KeS] at 01:40 PST Gosh, deb, and I only paid $1.00 apiece for 96 tpi Dysans this weekend! (For an AT user) Guess it is all in that keen shopping eye! . KeS ---------- Category 11, Topic 2 Message 16 Mon Dec 22, 1986 DEB [*SysOp*] at 04:51 EST Well, smirk away, Kevin...As you know, tho, AT style disks are NOT normal diskies... <> If you go out in search of 96 TPI disks, do NOT get the disks for the AT IBM computer!! Get what is called 'HD' 96 TPI. The AT style disks are not called 'HD', but 'Quad Density'. They have a stronger something technical sounding sZ{gnal required to format/read/write on them...and your SFD won't even begin to format! <> Thanks for the reminder about posting *this* info Kevin! <1 dollar, indeed!> *deb!* ---------- Category 11, Topic 2 Message 17 Mon Dec 22, 1986 KEVIN-S. [KeS] at 18:26 PST Oh, sorry, deb! Yes, but they had BOTH types available! Take your pick, mix and match boxes of ten... of course, I don't HAVE an SFD, so what am I smirking about!? KeS ---------- Category 11, Topic 2 Message 18 Mon Dec 22, 1986 DEB [*SysOp*] at 22:26 EST So, can ya get me any more of those disks at THAT price...? <> ---------- Category 11, Topic 2 Message 19 Mon Dec 22, 1986 GARYW at 22:29 CST Deb: I am going to bring you some disks. Ihave been using these on my Radio Shack TRS-80 model 3 which used Quad drives and I have never had any problems. Speaking of disks, don't you still owe me $14.00??? ---------- Category 11, Topic 2 Message 21 Tue Dec 23, 1986 JIM.MAC [* SysOp *] at 00:43 EST The SFD's are indeed finicky about what disks you put in them. As Deb mentioned, if you are running a BBS as both she and I are with SFD's get yourself 'HD' disks. The $$ might hurt you at first, but does not compare to the headache you will have in time if you use 'cheapies'. ---------- Category 11, Topic 2 Message 22 Tue Dec 23, 1986 GRAFIX.M [Mike Hooper] at 08:04 EST Jim- *I'd* LOVE that little utility! I've got an SFD that is a bit flakey at times and it won't deal with *some* tracks at all. I use the SFD as a drive for LIBRARY text files and never have users writing to it. That utility would sure help when setting up a new disk for the system (till I can find someone to FIX the little bugger!) \\GFX// ---------- Category 11, Topic 2 Message 23 Wed Dec 24, 1986 JIM.MAC [* SysOp *] at 01:21 EST GFX- I will polish up the program that reads checks each sector and locks out any bad ones it encounters. It is very handy. It is also fast when you consider that it has to read and write to 154 sectors. ---------- Category 11, Topic 2 Message 24 Sun Dec 28, 1986 S.LEWIS at 22:08 MST Gee, I'm surprised nobody ever mentioned getting a "format speed error" on his/her SFD... what a common thing around here (and one, I might add, that has brought me a buck or two). Another common problem is the guy that goes in to change device numbers with a razor knife and hacks through a few too many traces. Drive will sit there and flash 4 or 5 times, stop, then repeat the flashing forever. Sound familiar? Steve ---------- Category 11, Topic 2 Message 25 Mon Dec 29, 1986 DEB [*SysOp*] at 17:50 EST Steve...hahaha, I knew someone that cut too many traces on *2* SFD's, and he had no idea what to do with them...decided they would cost too much to repair. So...what *do* you do with an SFD on which your scalpel has slipped?! ---------- Category 11, Topic 2 Message 26 Mon Dec 29, 1986 GARYW at 19:41 CST YOu bring it with you to CEs and I will fix it for FREE. ---------- Category 11, Topic 2 Message 27 Mon Dec 29, 1986 DEB [*SysOp*] at 21:36 EST Nonono, Gary, twasn't *mine*...*I* know how to cut traces *right* <> ---------- Category 11, Topic 2 Message 28 Mon Dec 29, 1986 S.LEWIS at 21:44 MST So how much would this guy like to sell em for? Leave me a *private* message, eh? For that matter... if *anybody* has an SFD or the GOOD OLD Quicksilver for the 64 that they'd like to part with, please leave me a line or two along with a price. If I'm not interested I can probably put you in touch with somebody who is. 8050's, 8250's, 9060's, and 9090 inquiries also welcome! By the way, anybody experience any 22 errors on their 9060 yet??? Steve ---------- Category 11, Topic 2 Message 29 Tue Dec 30, 1986 GRAFIX.M [Mike Hooper] at 18:22 EST Steve- I haven't got the DOS manual handy, and don't recall what a 22 error is, but I've had the drive scramble the directory and BAM twice now. First time I attributed it to my learning the ins and outs of the D9090. It was no great loss, since I had current backups of the few files I had on it. The second time was a disaster! Close to 6 Meg on it and many items not backed up. I've looked at it with a sector editor and all the files are there, but several blocks of directory are duplicated and the track/ sector path is scrambled in a few places. A couple of links are now recursive! ::ACK:: I've about given up on it (sigh). \\GFX// ---------- Category 11, Topic 2 Message 30 Wed Dec 31, 1986 S.LEWIS at 03:01 MST You didn't "collect" or validate it, did you? A nasy no-no for 9060 and 9090 drives! For the fun of it, before I reformat mine over the weekend I intend to do a collect on it and see how much damage it does *this time* (I did it to a different drive a couple of years back and the directory became as scrambled as all he**). If you want to part with it, please let me know. ---------- Category 11, Topic 2 Message 31 Thu Jan 01, 1987 GRAFIX.M [Mike Hooper] at 16:35 EST Yep, validating did it both times (you'd think I'd learn from the FIRST time)! OK. So validating a 9060 & 9090 is a no-no....so what do you do with an open file? \\GFX// ---------- Category 11, Topic 2 Message 32 Thu Jan 01, 1987 DEB [*SysOp*] at 17:53 EST CLOSE it! ---------- Category 11, Topic 2 Message 33 Fri Jan 02, 1987 S.LEWIS at 00:45 MST Don't validate it!!! Rename it to something that will stay out of your way... like "SPLAT X" where X is a number or letter. You can then check on the demon's progress with a selective directory of SPLAT*... Not a good solution, but one that will keep everything in order. Steve ---------- Category 11, Topic 2 Message 34 Fri Jan 02, 1987 DEB [*SysOp*] at 03:22 EST Isn't there a quick trick to opening a SPLAT file and closing it back up? <> *deb!* ---------- Category 11, Topic 2 Message 35 Sun Jan 04, 1987 S.LEWIS at 19:10 MST I don't think so (or that information has never dribbled down to me thru local info, national net tricks or Butterfield magazine articles. There IS, however, a way to access the information in a splat file... OPEN8,8,8,"filename,p,m" Substitute the proper file type for the p and use M instead of R. I've never actually tried that to the end of a file, but as I recall you have to manually tell it when to stop as the pointers in the last block of the actual file are pointed at the expected next block or some such thing, and you'll keep on reading whatever that expected next block links to... I should try that tonight before I reformat the ol' 9090... Steve ---------- Category 11, Topic 2 Message 36 Thu Jan 08, 1987 GRAFIX.M [Mike Hooper] at 15:47 EST Are there any other "suprizes" waiting for me if I use any other of the common DOS commands with the 9090? \\GFX// ---------- Category 11, Topic 2 Message 37 Sun Jan 11, 1987 S.LEWIS at 23:25 MST Don't try putting a 128 autoboot sector on it! You'll wipe out an important pointer! Steve Topic 3 Sun May 18, 1986 P.L.MADDEN (Forwarded) SUB: SFD-1001 Fast Backup Is there such a thing as a fast Backup program for a SDF-1001, a One Meg Drive for the C64? 5 message(s) total ********** ---------- Category 11, Topic 3 Message 1 Mon May 19, 1986 DEB [*deb!*] (Forwarded) Well, its not a 60 second special from Mike Henry, but there are programs that back them up...and as soon as I get it uploaded, Bill Brier recently made public the hints for speeding up the SFD. heck, maybe we _should_ call Mike Henry and ask him!! *deb!* ---------- Category 11, Topic 3 Message 2 Sat May 24, 1986 P.L.MADDEN (Forwarded) Sounds good deb! Let me know when and where the info on speeding the SFD is when you get it up here... --Perry-- ---------- Category 11, Topic 3 Message 3 Sun May 25, 1986 KARE (Forwarded) Perry, the info on speeding up the SFD is posted in the database catagory Information Exchange, file #967. Enjoy!! -kare- ---------- Category 11, Topic 3 Message 5 Sun Jun 08, 1986 HAUTZENROEDE (Forwarded) There is a fast filecopier for the SFD-1001. DI-SECTOR v3.0b supports the SFD and will copy all files. HAUTZENROEDER ---------- Topic 5 Tue Jul 22, 1986 GRAFIX.M [Mike Hooper] (Forwarded) SUB: New SFD-1001 Alignment disk due soon Cardinal Software is releasing a new utility to align your SFD! 17 message(s) total ********** ---------- Category 11, Topic 5 Message 1 Tue Jul 22, 1986 GRAFIX.M [Mike Hooper] (Forwarded) The SFD Physical Exam will also include 8250 on the same disk and docs for both. They claim it will be as easy to use as the 1541 Physical Exam! Price will be $39.95 and will be released in late Aug. or Sept. ---------- Category 11, Topic 5 Message 2 Wed Jul 23, 1986 DEB [*deb!*] (Forwarded) HOORAY! Thanks for the good news, Mike! ((already 1 SFD that won't format a disk....)) ---------- Category 11, Topic 5 Message 3 Mon Sep 01, 1986 B.DOHERTY [Bob] at 00:20 EDT Tonight I tried to format a disk on my SFD 1001 and no matter how I Attempted to do it I got a Error 75,FORMAT SPEED,1,00,0 Could this be a simple alignment problem or something more serious? Also, how much should I expect to pay to have the SFD aligned? Thanks, Bob ---------- Category 11, Topic 5 Message 4 Mon Sep 01, 1986 SURVIVOR [S. Gutknecht] at 15:58 EDT If the problem is simply the speed... it is usualy easy to alter that yourself... ask DEB if she can help... ---------- Category 11, Topic 5 Message 5 Mon Sep 01, 1986 DEB [*deb!*] at 17:43 EDT DEB doesn't do hardware, remember...?! Bob, I have *2* drives that will not format. Yup, its due to alignment. Remember them 1541's that would go out of alignment and then format a disk just fine, except that the disk could not be read by any other drive??? I believe that this speed check is a way of preventing this from happening. NOW...how to align it? I dunno. Does the disk drive self-check kit do this? Yea, I know its got a name, just forgot it!! Mike said they were about to release an SFD version. *deb!* ---------- Category 11, Topic 5 Message 6 Mon Sep 01, 1986 GRAFIX.M [Mike Hooper] at 19:11 EDT In talking with Cardinal, they tell me the utility will have lots of photographs, and utilities to make the job easier. It also includes a speed check and instructions on how to adjust it. I'll give 'em a call Tuesday and see if they have a release date yet. --GFX ---------- Category 11, Topic 5 Message 7 Mon Sep 01, 1986 B.DOHERTY [Bob] at 19:36 EDT Yes Deb the SFD performance test results in the same error message plus A system failing message. Well, if its got to be aligned, its got to be aligned! I've located a place locally with same day service. What more could I ask for? ---------- Category 11, Topic 5 Message 8 Mon Sep 01, 1986 GRAFIX.M [Mike Hooper] at 21:29 EDT Gee, how much do they charge and do they do mail order?? ---------- Category 11, Topic 5 Message 9 Tue Sep 02, 1986 DEB [*deb!*] at 02:46 EDT Wow, with 2 drives out to lunch, I'm dying for a solution, too!!! They are reading and writing PERFECTLY tho...!! ** ---------- Category 11, Topic 5 Message 10 Tue Sep 02, 1986 B.DOHERTY [Bob] at 02:47 EDT Naw Gary, ITis just a little hole in the wall... I doubt very much UPS could find them! (grin). ---------- Category 11, Topic 5 Message 11 Wed Sep 03, 1986 GRAFIX.M [Mike Hooper] at 13:26 EDT I talked with Cardinal Software, RE: the status of the SFD alignment disk. They say, "....manual is at the printers and they will have it ready to go in 2-3 weeks." They also said you can place orders with them. Phone and address is in this TOPic. --GFX ---------- Category 11, Topic 5 Message 12 Wed Sep 03, 1986 DEB [*deb!*] at 17:57 EDT Mike.... Wanna bet that the address/phone is in this topic...??? Also, did anyone mention price? Now...the real dumb question of the hour. Does this 'Physical Exam' work with more than 1 drive? How does it work? Do I have to take the drive apart or mess with something I don't know anything about?? Remember, I couldn't tell a resistor from a capacitor, and I'm kinda surprised that I can spell them!! ** ---------- Category 11, Topic 5 Message 13 Sat Sep 06, 1986 J.MACCRAW [Apprentice] at 10:05 CDT As I've said, I'm a Color64 BBS SysOp, running it on three SFDs and a '41 (300/1200- 24 hrs). Over the course of almost a year, I've picked up a bit of 1001 "lore", and it's hard to sp separate the fact from myth...but there does seem to be a ghost or two in the machine. (And it seems that the older ones- like that big batch that Protecto moved- are the worst). At any rate, a goodly number of them fall prey to that loony format speed error. I'm no techie, and I can't tell you exactly what the problem is. What happened with me is that I found a local shop run by one guy who is a PET wizard. Once he alligns the beasts, and gets the speed set PROPERLY, they work fine with no problems. I think the best advice I could give you is to look around your area for a shop that works on PET stuff (assuming that there is no one advertising that they work on SFDS) the similarity is such that - if the tech is any good, he/she should have no real probs. HOWEVER- the guy that works on mine is highly reccomended, and if you can't fine anyone locally in your area and decide to ship- I would use this guy. His place is called ECS, is in Minneapolis, and is highly respected by local '41 owners for his work I on that drive. I can post the phone # and address, but LD information in area code 612 will get it for you just as quickly. ECS. BTW- anybody else actually TRIED that SFD speedup from Transactor that I've been hearing about? Does it really work? peace. jm ---------- Category 11, Topic 5 Message 14 Fri Oct 17, 1986 GRAFIX.M [Mike Hooper] at 17:02 EDT Cardinal informs me they are SHIPPING! The SFD-1001 & 8250 Physical Exam is $39.95 and can be ordered from: Cardinal Software 14840 Build America Woodbridge, WV 22191 703-491-6494 They have told me they will ship detailed info on it and I'll post as soon as it gets here. \\GFX// ---------- Category 11, Topic 5 Message 15 Sun Dec 21, 1986 JIM.MAC [* SysOp *] at 13:34 EST Jumping in on the format/speed issue this is what I have found... Running SFD's 24 hours a day on a BBS gives the drive the time to get mighty hot! Once the drives reach a certain temperature they will not format. If you dig out the error code you find that it is as mentioned a speed problem. I just turn the drive(s) off and let them cool down and in time they once again will oblige when you issue a format command. ---------- Category 11, Topic 5 Message 16 Tue Dec 23, 1986 GRAFIX.M [Mike Hooper] at 08:06 EST hummm....mine did just that, and after the cooling off period, she would format fine.....for a while. Now she won't EVER format, tho it will read and write to my original disks just fine. \\GFX// ---------- Category 11, Topic 5 Message 17 Tue Dec 23, 1986 DEB [*SysOp*] at 11:15 EST Mike...it needs to be aligned. The SFD's alignment is VERY VERY critical and instead of formatting when its off, like the 1541 did, it just refuses to format. Considering the high density involved, I'd say that was a good idea!! *deb!* Category 11, Topic 7 Message 1 Tue Feb 04, 1986 B.DOHERTY (Forwarded)SUB: IEEE Quicksilver for the SFD Well, Skyles has announced a new interface for the 128 (IEEE) called the QuickSilver-128. I really would like to hear from ANY user who is familiar with it. Especially in regards to its performance With the SFD-1001. ---------- Category 11, Topic 7 Message 2 Tue Feb 04, 1986 DEB [*Sysop* DEB] (Forwarded) It has not been shipped yet, Bob. I will be speaking with Bob Skyles next weekend in San Francisco and hope to be able to find out just exactly this same thing!!! *deb!* ---------- Category 11, Topic 7 Message 3 Thu Feb 13, 1986 B.DOHERTY [Bob] (Forwarded) Well Deb!, How did we make out? Did you have a chance to talk with Robert Skyles about the new QuickSilver-128? ---------- Category 11, Topic 7 Message 4 Fri Feb 14, 1986 DEB [*Sysop* DEB] (Forwarded) The QuickSilver-128 is being shipped....! Right now, its certainly the most transparent IEEE for the 128....the E-link from Progressive Peripherals will not be nearly as transparent... ** ---------- Category 11, Topic 7 Message 5 Fri Apr 25, 1986 MIKEM [Pax Regal] (Forwarded) Welp, here I am again using a term that cant change duplex easily And, again I am responding to an old string here, but thats the story of my life I run a Color/Graphix BBS , and have had the unfortunate pleasure of dealing with Skyles . Hooked up to my BBS are three 1541's and an SFD-1001. Naturally with a setup such as this, a tre ansparent intertface is a MUST. Well, Upon I waited months for Skyles new IEEE-Flash to come out for the C-64, and when it did I almost screamed. The thing had such a terrible time reading sequential files it ridiculous. That, coupled with the fact that it isnt compatible with Skyles' 1541-Flash, prompted me to send IEEE back for a refund. I had other problems too numerous to mention, , , but that was the gist of it. I had borrowed the 128 version to try my luck with it hooked to the board, and still no better. I have heard many reasons for Skyles to do away with the old Quicksilver, but for the life of me cannot understand why one would discard an excellent product and replace it with with IEEE-Flash. I am now using E-LINK from Progressive Periph. and it is EXTREMELY transparent, both the 64 and the 128 have no problems at all. I can actually sleep nights now, knowing the BBS wont decide to crash on me. (The folks at Progree ssive have an excellent attitude about helping support....Thanx Jim!> Next time ill log on with a half duplex so i can read what I write...sheesh. Mike ---------- Category 11, Topic 7 Message 6 Sat Apr 26, 1986 DEB [*deb!*] (Forwarded) Mike .... I understand there have been several revisions to the Quicksilver interface, and even the last one did not properly work under 64 mode on the 128. I am, however, surprised to find that the E Link from Progressive is this transparent! As a side note, Mike, if you forget to boot up your program at half duplex, you CAN get GEnie to go into full duplex! After you enter the HHH and get the U#= prompt: Press CTRL R and then enter your ID and password! *deb!* ---------- Category 11, Topic 7 Message 7 Wed Apr 30, 1986 MIKEM [Pax Regal] (Forwarded) Ahhh! Thanx fror the CNTRL-R, deb! ! From what I understand is that there is no longer a Quicksilver, per se. They are now using an IEEE-Flash, sans Bryce Nesbitt's genius. E-Link is marvelous, as is Progressive Peripherals service department. (All of this drivvel is my own personal opinion. Your mileage may vary) -Mike ---------- Category 11, Topic 7 Message 8 Thu Dec 04, 1986 FRANKIE.HLWD at 23:08 EST I have been using the 128 quicksilver for about 2 months now an I find it great!! I also connected a switch to go to and from the Rom chip that was required to replace when inserting the interface mainly because some programs require the original ROM chip that comes with the computer!! ---------- Category 11, Topic 7 Message 9 Sat Dec 06, 1986 DEB [*deb!*] at 04:41 EST My SFD's and (2) QuickSilvers are still living happily ever after here at my desk...and I'm pleased as can be, even after this long. 64-mode does NOT give you the complete transparency that 128 mode does, but it works most of the time... *deb!* ----------- Topic 22 Sun Aug 31, 1986 SALEWIT at 20:49 PDT SUB: SFD-1001 Memory location I am looking for the memory location for the SFD-1001 to read the current track and sector. Can't seem to find any info on this. Can anybody help?? 14 message(s) total ********** ---------- Category 11, Topic 22 Message 1 Mon Sep 01, 1986 SALEWIT at 13:15 PDT OK, if nobody knows the answer, then how bout some ideas on WHERE or HOW I can get this info. Help! I'm desperate! ---------- Category 11, Topic 22 Message 2 Mon Sep 01, 1986 DEB [*deb!*] at 17:49 EDT Sam.... Are you trying to locate the code to EXECUTE a read from a specific block or are you trying to find out how to tell from a MEMORY READ where the drive is located at at the moment?? ....and what are you doing with it? Perhaps there is another way to approach the problem? *deb!* ---------- Category 11, Topic 22 Message 3 Mon Sep 01, 1986 SALEWIT at 16:15 PDT Yes Deb, I need to do a MEMORY READ (m-r) to find out what track and sector the disk is on. I'm currently running a BBS that has file descriptions in it, with the NUMBER OF ACCESSES in the file. Well until recently all I had were 1541's, and I did a m-r to find the T & S, then did a u1 to increment and u2 to write it back. Very fast, and eliminates the need to read in the seq description them n write it back with the new access number. I'm kinda convinced that this is the only way ta go right now. It'S been working so well with the 1541's, that I'd hate to devise a new system of course unless it's better! Thanks a bunch! P.S. Meanwhile, that line of code in my BBS is STILL doing it with the SFD, and lord p only knows WHAT it's doing, so that's why I'm so eager to find this answer as quick as possible. ---------- Category 11, Topic 22 Message 4 Mon Sep 01, 1986 GRAFIX.M [Mike Hooper] at 19:22 EDT There is a book available from THE TRANSACTOR (also at many local bookstores) called "The Complete Commodore Inner Space Anthology". Not only does it contain a heap of memory location descriptions on the entire line of CBM computers, it also has a list of important memory locations for the 8250 (which uses the same DOS as the SFD). After my trials in finding the Blocks Free loactions, I ran across the book and sure enough, there it was in black & white! TRANSACTOR 277 Linwood Ave Buffalo, NY 14209-9990 416-878-8438 (dunno if this is for orders tho) Price $14.95 US dollars --GFX ---------- Category 11, Topic 22 Message 5 Mon Sep 01, 1986 SALEWIT at 20:19 PDT GFX- Do you happen to have that book? I don't mean to sound cheap, but I doubt I'll ever need anything else again after finding this location. Thanks! ---------- Category 11, Topic 22 Message 6 Mon Sep 01, 1986 MIKEM [Pax Regal] at 20:47 PDT Sam: I have the Transactor manual Mike spoke about also. It does not contain any more information than does the SEQ file I upped to your board. Like Mike said, its actually half of a 8250, and the info in the book duplicates that of the file you have. However, thsi manual does have complete memory maps of the 4040, 1541, and *8050* disk drives. I'm not at all familiar with the 8050, but if its similar to the 8250, then this map should have what you need. -Mike ---------- Category 11, Topic 22 Message 7 Tue Sep 02, 1986 GRAFIX.M [Mike Hooper] at 00:38 EDT Hummm....version I saw had 8250 loacations too. Maybe there is a revised edition? Anyway, no, I don't have the book. I browsed at a local software store. I'd love to be able to find a truly complete refrence for DOS 2.7 and DOS 3.0. But sadly, these are still farily rare. ---------- Category 11, Topic 22 Message 8 Tue Sep 02, 1986 DEB [*deb!*] at 02:50 EDT the 8050 does _not_ use DOS 2.7, tho, which is what the SFD uses. The double-sided SFD and 8250 would require additional coding and overhead...especially for the T & S pointers.... *deb!* ---------- Category 11, Topic 22 Message 13 Thu Sep 04, 1986 SALEWIT at 02:10 PDT OK, so if nobody could help me with this one, how about the start of RAM in these tings? Anyone know where that might be? Looks like I( 'll have to make a disk monitor, and just poke around till I find two numbers than t match the heAd position I'm at. hanks (Darned delete....how do you fix that anyway?!?!)