chris36

I picked Dual CF only because it was OP's primary choice. I don't have a strong preference here.

Well I could put my empty TI-99/4A case up for sale at $2000 in order to top it. But what would I win?

Looks like it was possibly shared in the past. I wonder if anyone might still have the "dbt.zip" file sitting in your archives.

http://ftp.whtech.com/Cartridges/FinalGROM99/

Yeah I was afraid of that. There must be a reason why not many of these side mount models were made.

That site is also archived at archive.org with downloads.

To close this out, for my part, I got a straight through cable and the Gotek works as described up thread. Didn't need to open the PEB or mess with the internal drive.

PM received.

Linux user. I did a dd if=/dev/zero of=/dev/sdc which wrote all zeros to the disk before using the DOS dsk2cf.exe to write a volume. I think it was a CF7+. Maybe a precursor to the NanoPEB?

US, but thanks for the offer.

The one I have connects directly to the side port (no ribbon cable). The red power LED comes on showing it has power. However, it has, what I thought was an optional, power input for use with speech module. I don't recall having a 5 volt power supply to use with it, but it's worth a shot I guess. When I wrote the original post, I had just PC formatted the CF disk. Since then, I have downloaded the DOS utilities and the sample VOL1.DSK file that goes with it. Still didn't work. Also tried some disk images found here and no joy. Addendum: The CF card is the original 32MB card that came with the device. So compatibility shouldn't be an issue.

So reading through a search I've found some disk images. It appears the CF card did not have any hidden code on it. I've also read that my side mount version was known for static zaps. So I'm going with it being bad. Would anyone want it (repairable?)? I'd probably end up putting it on a shelf somewhere, because I don't want to toss it in the landfill, where it will be tossed into the landfill by my heirs.

I dusted off my old side port CF7. I must have reused the CF card for something. Connecting without a CF7 and doing SIZE in Extended Basic shows that 32K memory is not available. Putting a formatted CF card in the CF7 causes the TI-99/4A to freeze on start up (long tone, no welcome screen). So either my CF7 is bad, or there was some startup code on the original CF card. Anyone know if the latter is true? If you have one, can you report on what happens without the CF card? Do you get an operational 32K without CF card? Thanks.

DisplayMaster.pdf DMASTER.DSK TI Sort.pdf TISORT-S.DSK

Artoons.pdf disk1.DSK disk2.DSK disk3.DSK PUBINDE.DSK PublicationIndex.pdf MISSNGLINK.DSK The Missing Link.pdf ORG!.DSK The Organizer.pdf

404 even after refresh.

Some more Asgard Disks. Probably repeats, but maybe some new ones. Can someone with WHTECH access upload these? Castle Darkholm.pdf DARKHOLM.DSK Classic Checkers.pdf CLSSCCHKRS.DSK Page Pro Borders.pdf PPBORDERS.DSK PPBORDERS1.DSK HF2d1.DSK HF2d2.DSK PagePro Headline Fonts.pdf PageProPics Animals 1.pdf VOL1:ANI#1.DSK PageProPics_Holidays 1.pdf PPP-HOL#1.DSK PageProPics_computer.pdf PPP-COMPUT.DSK PageProPics_People 1.pdf PPP-PEOP#1.DSK PageProPics_PublishTools 1.pdf PPP-PPACK.DSK PageProPics_PublishTools.pdf PPP-PUBPK2.DSK NauticalA.DSK NauticalB.DSK PageProPics_Nautical.pdf PageProPics_PublishTools.pdf PUBPAK3-A.DSK PUBPAK3-B.DSK PrEditor.DSK PREditor.pdf RATSNAKE.DSK Rattlesnake Bend.pdf

Almost a year late in discovering this. Just ordered from physical from @arcadeshopper. Glad there are still copies left. Thanks @pixelpedant for helping me find something fun to do while hiding indoors from the hot summer.

Attached is my interpretation of the 32K Expansion memory checker given in http://ftp.whtech.com/user groups/Kankakee/K3-1988-05.pdf You will need the drawing on page 6 of that PDF to interpret the results. As the PDF states, this is meant to be run from BASIC (not Extended BASIC) with the MiniMemory cartridge. The PDF gives information on how to disable the 32K Memory if no MiniMemory is available and you are loading with Extended BASIC. My 32K expansion card passed, so I don't have it tested for showing a bad result. It does show all bad on the second pass with the 32K expansion removed (PEB turned off, in my case). Interestingly, the first pass shows ok with no 32K expansion, zero in, zero read. I suppose that check is for "stuck bits" situation that is mentioned in the PDF. memtest.bas

You might be punishing the wrong villain. According to this, it was written by someone else. https://en.wikipedia.org/wiki/Pyramid_of_Doom

If it's one or the other, that implies I would need to recable the PEB. Something I was trying to avoid.

Just to be clear, did you mean "external cable and internal"? i.e. one drive can be on each?

Apologies for necroing this thread. But it's the first result of a search for 32K memory test. So do each of the individual 4116 chips represent a single bit of a byte? And each row of 8, together, form a byte? If so, then line 240 IN=2^I ("eye") not ("one"), in the xBasic version, seems to make sense. I ("eye") goes from 0 to 7. So 2^I (eye) would step through a byte setting each bit on ON. This in turn would step through each chip and set it ON via the LOAD/PEEK statements. The improved BASIC program has the same typo, or bad copy, but at line 420. I would assume it is 2^I ("eye") for the same reason, but as a "second pass". "first pass" seems to just write all zero/OFF bits to the chip 8 times. Thoughts? Am I off base in my assumption of how the memory works?

I have a PEB with PHP 1240 Disk Memory System controller and a full height floppy drive installed in the PEB. I have a gotek drive SFR1M44-U100LQD that I want to use as DSK2 outside the PEB. The 1240 instructions address a single drive install (internal) and multiple drive installs (external), but doesn't talk about an internal + external configuration. Is it as simple as changing the drive id jumper on the gotek and connecting to the connector on the back side of the controller? Do resister packs need to be messed with on the internal floppy? Or does the internal floppy need to be connected to the same cable as the gotek? Thanks for any hints or tips anyone can provide.

I extracted the section of the disk file that appears to be assembly. It's attached as ringdest_assembly.bin. I used the disassembler, xda99, found at https://github.com/endlos99/xdt99. The resulting file, ringdest_disassembly.txt, is also attached. There are multiple subroutines in there. From the xBasic code, RINGDEST_xBasic_ASSEMBLY.txt, there are two LINK statements for subroutines "A" and "B". The LOAD statement at line 210 sets up the Routine Name Table. Routine "A" is always at address >a200. Routine "B" can change locations, depending on the values in variables X and Y. I think this is about where I'm dropping out on this topic. ringdest_assembly.bin ringdest_disassembly.txt RINGDEST_xBasic_ASSEMBLY.txt