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  • Philcogrump's Avatar
    April 17th, 2018, 04:09 AM
    Have you checked the latest mc6800.js in Github? I reorganized how the code is structured and especially the function calls between mc6800.js and...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 17th, 2018, 04:05 AM
    I don't know if https://github.com/jonbstanley/Tek405xEmulator is a good place for these images, but you could make a fork from this master branch,...
    93 replies | 3325 view(s)
  • GanjaTron's Avatar
    April 17th, 2018, 02:29 AM
    I wouldn't rule out yet another bad RAM, which is why I've ordered the diagnostix module rebuild from Jos. I've had those weird SYSTEM ERRORs come up...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 16th, 2018, 06:24 PM
    Thanks for attaching the files, I'll look through them. I was thinking we could keep the mc6800.js the same for both emulators and only the 4052...
    93 replies | 3325 view(s)
  • GanjaTron's Avatar
    April 16th, 2018, 09:57 AM
    Thanks Jos! Just sent you an email. I should have no problem getting the parts apart from the programmed GAL; my old Data I/O predates those by a...
    13 replies | 456 view(s)
  • GanjaTron's Avatar
    April 16th, 2018, 01:51 AM
    Hi Monty. thanks for editing, I take it you got those from my goggle drive -- I forgot I'd already uploaded them there. ;) Thanks also for...
    93 replies | 3325 view(s)
  • GanjaTron's Avatar
    April 15th, 2018, 02:39 PM
    Thanks for the info, Monty. I don't recall seeing CALL "EXEC" in my 4052's docs, so it appears to be indeed missing. Even then, the 4052's secret...
    93 replies | 3325 view(s)
  • GanjaTron's Avatar
    April 15th, 2018, 05:58 AM
    P.S. If you guys know a way to list a SECRET file, let me know... ;)
    93 replies | 3325 view(s)
  • GanjaTron's Avatar
    April 15th, 2018, 05:52 AM
    Hi Dave, Jon, Monty, first off, congrats on this impressive effort! I've yet to try the emulator (having the real thing at hand), but I'm already...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 14th, 2018, 08:47 AM
    Nice, I did some further refinements and uploaded a new version with better look and feel. A few other to do's I have in mind: 1. There is a...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 12th, 2018, 07:08 PM
    Just posted several improvements tonight. Added the 4 status indicators for power, busy, break, and io. Implemented DRBUSY so display erase can...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 10th, 2018, 06:03 PM
    Yes, there is a blinking F about 1.5 lines above the first line of text on a full screen condition. I'll let you tweak with the emulator window size.
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 9th, 2018, 05:46 PM
    I just synced the master branch with the latest updates from Monty. I also added support for the COPY command to download a screenshot, there's also...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 9th, 2018, 04:16 AM
    Great info, I'll work through these and figure out how to implement in the CPU emulation of the floating point instructions.
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 9th, 2018, 04:14 AM
    Cool. I'll check your pull request and sync the master branch sometime this week. For the ERASE time, yes I'm not surprised about needing to...
    93 replies | 3325 view(s)
  • GanjaTron's Avatar
    April 7th, 2018, 05:26 AM
    Hi Jos, this is indeed good news! Fantastic job! Count me in for a PCB! I finally put my 4052 together again last night, so next time something...
    13 replies | 456 view(s)
  • Philcogrump's Avatar
    April 7th, 2018, 04:57 AM
    I just posted recent changes to the code for the display improvements you sent me outside of Github. Could you check it out and merge with yours, and...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 7th, 2018, 04:55 AM
    I just posted the changes to my master branch for the DVST emulation for cursor blinking and improved the erase (page) behavior. I haven't gotten to...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 5th, 2018, 07:37 PM
    That's very useful information. I'm not familiar with the 405x floating point format. So it used 8 memory bytes for one number, with the upper bits...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 5th, 2018, 07:31 PM
    I've been messing around with TekDisplay.js some more. I did get your blink code to work, but don't like how the cursor pixels are sometimes left...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 3rd, 2018, 06:38 PM
    Did you show him the list of 4052 specific instructions I posted earlier? I realize it has been several decades since this was last developed, but...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    April 3rd, 2018, 06:35 PM
    I got the blinking cursor working by adding this line to execute_start() in TEKTRONIX4051.js: cursor_blink_interval = setInterval( display.blink,...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    March 28th, 2018, 05:58 PM
    To summarize the new 4052/54 extended instructions that have been added to mc6800.js and my best guess on what they do based on the mnemonics of...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    March 28th, 2018, 05:42 PM
    That's an interesting finding. The mc6800 emulation executes a chunk of instructions once every 60 seconds, so the number of instructions executed...
    93 replies | 3325 view(s)
  • Philcogrump's Avatar
    March 28th, 2018, 05:34 PM
    I finally figured out why I broke GPIB. Looks like my jsTEKTRONIX4051.html somehow left out a good chunk of the file read character conversion stuff...
    93 replies | 3325 view(s)
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