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About Calibus

  • Rank
    Star Raider

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  • Location
    Akron Ohio
  • Interests
    Retrocomputing! Reading! Motorcycling! Overzealous use of the "!" key!
  • Currently Playing
    World of Warcraft

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  1. FRE() is a reserved function name in Model 100 BASIC. Z = FRE(0) Returns the amount of memory available (free) for numeric memory in bytes Z = FRE(' ') Returns the amount of string space available (free) memory in bytes (From page 14 of this document: http://www.classiccmp.org/cini/pdf/Tandy/Model 100 Quick Reference.pdf ) As a rule with these old dialects of BASIC - you can't create a variable that includes a reserved word. You can use var names longer than 2 chars, but generally, only the first 2 chars were significant. Thus 10 ABCXYZ = 99 20 PRINT ABLLLL RUN 99
  2. I re-installed the Incognito in my 800 motherboard - and it WORKS! i think I might have had a bent pin on the small cable that fits in the socket where the 7442 is removed from. And yes - I had the orientation correct before - but I might have had one of those very delicate pins bent under - so it looked like it was in the socket, but it wasn't. I powered it up - and it dumped me into Sparta DOS - so it looks like it's alive! thanks for everyones suggestions and especially thanks to FJC for his above and beyond support via PMs Jim
  3. Looks like the same rev CPU card I have. Mine is wired identically.
  4. I assume you mean something is being shorted while the Incognito is plugged - since when I revert - it seems fine. Granted, I've only done limited testing with this 800 - but it seems to work fine with a BASIC cart and Star Raiders when I reverted it.
  5. With an incognito - do you normally get the memory test (?) sound effect on power up? I definitely don't hear anything. When I put the OS ROM back in and 48K of RAM - I definitely heard it on startup before either going into Memo Pad or BASIC or whatever else I tested it with. I will definitely try a cart when I have a chance - with the Incognito plugged in. I didn't have the keyboard plugged in - but I can try that also.
  6. I bought an Atari 800 a couple years ago - and found out about this great thing called the Incognito - which sadly wasn't being sold any more and was super expensive on ebay. So - during this past summer when I saw the post on FB that Lotharek was doing a new run - I fell over myself throwing money at him. I was cheap on the postage - no tracking - but it made its way to me eventually. In the meantime I watched FJC's installation videos - so I was all set when mine arrived. Last weekend, I finally cleared enough space on my bench to open up the 800 and started installing it. I got to the part in the video where he does the quick power up check. So - I hooked mine up - powered it up - and got this on my monitor I powered it off quick and double checked my connections. Everything seemed OK to me - so I took a bunch of pictures and showed them to FJC to see if a second pair of eyes would reveal my goof. He spotted I have swapped the connections from P5 Pins 3 & 4 - the ones to the resistors. So - when I got home that day - I wired them up correctly - and tried again. Same thing - blue screen with squiqqlies. It was at this point that I studied his example connections on the CPU card - and saw that it looked quite different than mine. I was confident that I followed the instructions though - and connected the wires to the right pins on the chip I identified as the Antic via a part number lookup on google. So - some more back and forth PMs and we realized I had a different rev CPU board than he did. Maybe mine is normal for NTSC machines? On both my CPU cards (I also have a parts 800 that arrived smashed from ebay) pin 1 of the large 40 pin chips is towards the card edge connector. My CPU cards are oriented in the same layout as in the 800 service manual I downloaded. I reverted my 800 temporarily back to an OS card and 48K - and it booted up fine into notepad. So I at least didn't kill the machine. I emailed Lotharek and he assured me that every Incognito is tested prior to being shipped. So - I've pestered Jonathan enough these past three days - and I thought I might see if anyone else has any ideas what might be wrong. Hopefully I didn't kill the Incognito with my wire swap accident. Mine did come with a populated JTAG header - so if there is something I can do via that - it's an option. I did originally plug the CPU and Incognito cards in the motherboard correctly - I double checked the video to see what the orientation was prior to applying power. I also had the P4 cable connected properly - the 74LS42 replacement. I have both jumper wires on the motherboard correct - I double checked against the video. (Ref from the memory card slot to the personality module slot & RNMI to Reset) Any ideas? Does anyone else have it working with this style of CPU card? I also have a TL866 if I needed to reprogram something. Help? Jim
  7. Pretty rusty here, but if I recall, by default 4 pages of memory are allocated in ECB. Try "PCLEAR 0" and then check memory. Sounds like this is a 16K unit.
  8. Order ID 19804 Ordered on August 8th - received shipping notice yesterday morning.
  9. If Ed Snider has any available, he'll sell you one - or he'll let you know when he does have some. https://thezippsterzone.com/
  10. I'm guessing you are referring to the Color Computer or "CoCo"? Normally, the older monochrome Z-80 based computer is referred to as a Model 1... Color Computers on wikipedia Yep - definitely sounds like a CoCo to me - since the Z-80 machines didn't have cartridge slots. Both of those games were for the 3rd version of the CoCo - or the CoCo 3 only.
  11. The SD card based drive to get is a CocoSDC. Looks like Ed is showing a couple available on his website here: https://thezippsterzone.com/buy/ More good stuff can be found here: Cloud 9
  12. Wooohoo - I'm in Barberton, hopefully that 1x is mine.
  13. Actually, there were three items rattling around inside the case when I opened it. #1 - the mystery angled piece #2 - the sliced piece of rubber bumper #3 - a lock washer from one of the two screws holding the heat sink. One of the heat sink screws was merely loose - but still had the nut and washer, the other screw had lost its nut - but since it butts against the bottom of the case, it didn't go anywhere. I looked everywhere and couldn't find the missing nut. Definitely didn't lodge itself in the floppy drive mechanicals.
  14. Hi, I won what appeared to be a pristine drive from a seller on ebay, and prior to trying it - I shook it and heard something rattling inside. I opened it up, and found this small angled piece of metal. In this picture, it is laying next to one of the rubber bumpers that lines up with the floppy disk frame. The bumper appears to be sliced, I'm guessing due to being dropped, which may have resulted in this piece of metal becoming loose. Any ideas where it goes? I have another 1050 drive of unknown condition and I'm not seeing this part inside it - but I may be just overlooking it... Jim
  15. Yep, Lotharek actually emailed me this picture yesterday - I wondered where it came from. Even w/out translating from Polish - this picture is all I needed. It would be nice if future runs of the board had pin 1 indicated though... Jim
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