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  • lowen's Avatar
    October 29th, 2020, 01:05 PM
    Networking as we know it? Hmm, packet-switched, in other words, instead of circuit-switched. Again, this is ARPAnet. Which was developed and...
    21 replies | 337 view(s)
  • lowen's Avatar
    October 29th, 2020, 09:32 AM
    Internet is much older than 8088..... :-) BBN would be insulted. EDIT: Of course, you'd need a 56K leased line, a CSU/DSU, and a synchronous serial...
    21 replies | 337 view(s)
  • lowen's Avatar
    October 29th, 2020, 05:29 AM
    lowen replied to a thread Z80 speed in Tandy/Radio Shack
    The FPGA Z80 core I've thought about trying out is Monte's Y80 core from his book "Microprocessor Design Using Verilog HDL" available on Amazon. If...
    16 replies | 343 view(s)
  • lowen's Avatar
    October 28th, 2020, 07:26 PM
    lowen replied to a thread Z80 speed in Tandy/Radio Shack
    The current production Zilog Z8S180 is the one I'm talking about; it's a superset of the HD64180.
    16 replies | 343 view(s)
  • lowen's Avatar
    October 28th, 2020, 07:06 PM
    lowen replied to a thread Z80 speed in Tandy/Radio Shack
    Your recollection is incorrect; Z180 implements all of the documented Z80 instructions. You're thinking Rabbit CPUs, which, IIRC, you have some...
    16 replies | 343 view(s)
  • lowen's Avatar
    October 28th, 2020, 07:03 PM
    lowen replied to a thread Over clocking a 4 in Tandy/Radio Shack
    Yes, many times. I know of several (David Dalager was one, but there were several, some documented in Computer News 80) who achieved 5+ MHz with...
    4 replies | 130 view(s)
  • lowen's Avatar
    October 28th, 2020, 06:39 PM
    lowen replied to a thread Prowam in Tandy/Radio Shack
    Totally agreed. Wish we had source. I honestly doubt Roy has any interest in TRS-80 stuff anymore, based on things I've heard and read.
    3 replies | 74 view(s)
  • lowen's Avatar
    October 28th, 2020, 06:28 PM
    lowen replied to a thread Prowam in Tandy/Radio Shack
    https://www.tim-mann.org/trs80/Wamed.zip contains the droids you're looking for.
    3 replies | 74 view(s)
  • lowen's Avatar
    October 28th, 2020, 05:06 AM
    lowen replied to a thread Stealth Ian in Tandy/Radio Shack
    Thanks for the good info, Hans. I was planning on using other tools to make the HD image, since I'm a little familiar with the F48 already. Hmm, an...
    8 replies | 242 view(s)
  • lowen's Avatar
    October 27th, 2020, 03:43 PM
    lowen replied to a thread Z80 speed in Tandy/Radio Shack
    Yeah, 20MHz Z80 in DIP, QFP, and PLCC are also current production. Plasmo has gotten the 20MHz Z80 overclocked quite a ways.
    16 replies | 343 view(s)
  • lowen's Avatar
    October 27th, 2020, 03:36 PM
    lowen replied to a thread Stealth Ian in Tandy/Radio Shack
    Hans, I bought one of the F48's Ian has on eBay, and I hope to be able to set aside time to work on the LS-DOS autoboot. There are two approaches...
    8 replies | 242 view(s)
  • lowen's Avatar
    October 27th, 2020, 03:32 PM
    lowen replied to a thread Z80 speed in Tandy/Radio Shack
    Speaking from the point of view of having a little bit of experience with the eZ80, this is indeed the greatest obstacle; there are ways of forcing...
    16 replies | 343 view(s)
  • Trash-Eighty's Avatar
    October 20th, 2020, 06:33 AM
    NGA / GA is commonly used for the two Model 4 mainboard variants: NGA: Non-Gate Array (early version) GA: Gate Array (later version) References:...
    3 replies | 175 view(s)
  • lowen's Avatar
    October 19th, 2020, 06:13 AM
    At one point I had an Alpha system built up in an ATX 4U rackmount case. I have two ATX-form-factor Alpha boards; I think one is a 164LX and the...
    58 replies | 1895 view(s)
  • lowen's Avatar
    October 17th, 2020, 05:49 PM
    Right; doinst.sh has been around for a long time. The pkgtool system is a good one; it's just not all that different from the other ones, other than...
    52 replies | 1571 view(s)
  • lowen's Avatar
    October 17th, 2020, 11:14 AM
    Virtually everything said about slackware tar.gz packages is also true about .rpm or .deb packages; in the specific case of .rpm, they're just cpio...
    52 replies | 1571 view(s)
  • lowen's Avatar
    October 17th, 2020, 04:41 AM
    I have done very similar to Chuck in my partitioning, but going a bit farther with it. I typically have a /, a /var, a /home, and a /opt. / is on...
    52 replies | 1571 view(s)
  • lowen's Avatar
    October 8th, 2020, 02:08 PM
    I think I have that; I'll check tomorrow at work and see.
    8 replies | 368 view(s)
  • fritzeflink's Avatar
    October 1st, 2020, 01:15 AM
    Hi Chuck, Thanks for you offer. :-) I'm not a programmer but use the catweasle MK1 for my TRS80 floppydisks and of course if I have bad...
    10 replies | 652 view(s)
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