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  1. K

    India shows off new home-grown CPU – but at 100MHz, 32-bit and 180nm, it’s a bit of a clunker

    Floored to see any report from The Register. Didn't they shut down a while back? Something smells off about the editing. No mention of the word "Boffin" even once. That'd be like the Weekly World News without Ed Anger getting "Pig Bitin' Mad". Or when Joe Bob Briggs forgets to mention "Mush...
  2. K

    Researchers found the manual for the world's oldest surviving computer

    Relays have several speed advantages, mechanical movement not being one of them... These days we have extremely low resistance transmission gate multiplexers that can do all the cool old relay tricks without mechanical wait. What tricks you ask? Instant look- through carry, borrow, and...
  3. K

    Gateless Majority Logic

    https://www.sciencemag.org/news/2020/09/short-weird-life-and-potential-afterlife-quantum-radar "real entangled light pulses that experimenters can generate with a special crystal that converts a single higher frequency pulse to two entangled pulses at lower frequencies." "Physicists can...
  4. K

    After Ampere Launch Survey

    Titan X Pascal in my main desktop and a small pile of older mining cards. No hurt waiting a bit... That said, I may saunter down to Microcenter to heckle a few scalpers. I see nothing on thier pages about it. Perhaps I've misunderstood the nature of this launch.
  5. K

    Gateless Majority Logic

    Always troubleshooting someone else's board, never designing my own... I need some layout software with minimal learning curve that can handle 2 layers and SSOP16. The place I work for uses Altium. But its overkill, and the licence fee is rather extreme. Plus they don't want me hanging around...
  6. K

    Gateless Majority Logic

    The offical name for these sort of switches would be "Transmission Gate". Below are several common ways you might see them drawn in multiplexer spec sheets. Doesn't seem to be much of an agreed standard across brands. I was drawing them as-if relays. Overuse of that symbol ate too much space in...
  7. K

    Gateless Majority Logic

    The ALU above merits a barrel shifter. Since switches can all be thrown while the ALU churns, the only delay is propagation through two transmission gates. 250pS each... Note that only 6 devices are needed. Not requiring the braindead obvious 8 multiplexers, each sweeping through 8 steps of...
  8. K

    Gateless Majority Logic

    What it might look like if we chain 8 bits together for a full result... Replacing two earlier drawings in this same post that had errors. Trying here to make better sense of several earlier messes. Changed "Inhibit" to "Kill" cause "I" looked too much like "1". Changed "CarryIn" to "EQ"...
  9. K

    a coin-sized computer chip in her br...

    I smell bacon.
  10. K

    Tachyum Prodigy Native AI Supports TensorFlow and PyTorch

    The article opened with a bunch of gibberish about AI and integrated tensors, I wasn't familiar enough to immediately disbelive. But when they got to the CPU part, I know BS when I read it. Vaporware claims don't have to make sense, only fool investors. Crusoe's thing was dynamic recompilation...
  11. K

    Gateless Majority Logic

    Another way to sequence microcode without waiting for carry is to let cellular automata generate your count in pseudorandom sequence. Might lose use of one number like 0000 or FFFF that locks or kills all cells. Store microcode in funny sequence. All invisible and very fast...
  12. K

    Gateless Majority Logic

    The other new again old thing is a simple but very fast +1 for program or microcode counting. Konrad would recognize his differential carrys.
  13. K

    Gateless Majority Logic

    If we consider the borrow chain by itself, we have a magnitude comparitor! Two newly noted comparisons were possible in the drawing above as well. 10nS if we stretch this out to 16bits, assuming 74CBT. Unlike other comparators that simultaneously compare in several ways, Borrow gives one...
  14. K

    Gateless Majority Logic

    No innovations. Just cleaning up the drawing and documenting how it works. We are looking at the very last slice of sixteen. Delays include fifteen earlier slices not shown. Dude at work knows his 181, but couldn't make sense of my drawing. In particular, unable to determine poles or throws from...
  15. K

    Gateless Majority Logic

    Suppose C00 might be Broadcast in place of A+B's Carry Generate and Inhibit constants. One instance shared by all, not repeated per slice... Could turn A+B's Carry into PASS with four switches instead of 16 and eliminate any OE timing conflicts. Will add .25nS to worse case, though /OE might...
  16. K

    Gateless Majority Logic

    At least one way I've found to setup Zero switches in free parallel time with Result switches. But propagation through a chain here of 32 switches adds delay, even just .25nS per switch. 32 extra components only beating the prior best time to a final traditional Zero by 2.25nS. Another...
  17. K

    Gateless Majority Logic

    Trimming any legacy that might slow it down, 16nS! Logic operations use 2x 74CBT3345 (8 Pole Single Throw) to broadcast an initial carry to all truth tables, and output that carry unchanged. Detecting initial A=B or A<>B would be a Math operation, where Borrow becomes a weak but extremely fast...
  18. K

    Gateless Majority Logic

    I look back to my Truths ALU. Its not significantly faster or slower, just different. But I see in both a trend that requires a cascade of no less than three delays. A delay to figure the carry. A delay to figure the result. A delay to figure zero. Can't find a way to parallel these delays...
  19. K

    RISC-V Gaining Traction

    When it takes 145 pages just to describe the RISC V instruction set, I can't call that reduced... By way of comparison, it took only 60 pages to descrive ARMv7.
  20. K

    Gateless Majority Logic

    4Way truth tables make a simpler and faster ALU in one less step. But if functions need to be 74181 compatible for some reason, how might MUX quickly replicate dual mutators of B before XOR mixes P vs G to make a HalfResult of 16 logics? Aside from abusing a ROM+SRAM cheat-sheet solution. Let's...
  21. K

    Scientists able to turn ferromagnetism on/off in non-magnetic materials

    Manganese isn't magnetic either. Till you put Manganese Oxide in a crystal with Iron Oxide and Zinc Oxide. The soft ferrite used for the chokes on your MB and GPU is working the Manganese, not so much the Iron. Somehow it picks up a much needed clue from the Iron, but the iron is a hard lossy...
  22. K

    Gateless Majority Logic

    Damn 74181. What a struggle to understand it. Generate is the AOI on the left. This output is active when high. Propagate is the AOI on the right. This output is also active high. Look up a 74S64 AndOrInvert gate if you want to see an AOI's internal schematic. Do-nothing AND gate at far left...
  23. K

    Gateless Majority Logic

    Just noticed a strange coincidence regarding 74181 that maybe isn't coincidence. My table of half truths exactly replicates all 16 non-math functions of the 74181 in a completely different sequence. Not by thoughtful intent, only discovering it later. I havn't found an obvious way to translate...
  24. K

    Gateless Majority Logic

    I'm figuring worst case propagation delays of 74CBT logic. Compared to 74F181 + 74F182 + 74F21. Carry Look Through smokes Carry Look Ahead by more than 7nS. Carry ready in 10.25nS vs 18nS. Results should then be ready in 16.5nS vs 26.5nS. Zero known in 26.5nS vs ??? I've got Zero in the same...
  25. K

    Rare and hardest to crack Enigma code machine sells for $437,000

    If serious about obfuscating, Jerry might have tried Dvorak. Since 1932. Pat 1936. Likely they knew pre-war Allied pats. Did they at least get the clicky feel right? Mine feel only of mush. Trying for Manilla yellow backlight there. Wasn't thinking lamps. Wanting to remember my father's...
  26. K

    Gateless Majority Logic

    Just realized that X and Y are constants at each demultiplexed position! Each chain switch then corresponds to a Propagate, Generate, or Inhibit. My head stuck in Majority Logic maybe kept me from spotting this earlier. No reason inputs should drive outputs where amplified constants are free...
  27. K

    Gateless Majority Logic

    Lease Nazis have expended the limits of my patience for unlimited greed. So forget any practical builds any time soon. All going back to virtual and theoretical till I figure how much shop space I can afford somewhere else. Anyways, the wheels of invention keep turning no matter what trouble...
  28. K

    AMD Ships Out Ryzen 5 3600 CPUs in Ryzen 3 3200G Packaging

    Even if this batch of labels was truthful, doesn't mean the next will be. This precedent creates an environment for garaunteed future abuse.
  29. K

    New Integrated 3D-Circuit Architecture With Spiraling Memory

    "even more energy efficient by implementing a system of binarized neural networks. Instead of allowing parameters to be any number, they are restricted to either +1 or -1." Any binarized neural network sounds like a case of majority voting logic to me. IGZO is Indium Gallium Zinc Oxide...
  30. K

    Coreteks talks Traversal Coprocessors

    Interesting as it maybe was for 30 or 60 seconds before I could no longer stand that monotonous voice and string of irrelevant video clips padding time for extra monotony. I agree, just write a damn article about culling rays or whatever the completely lost point was. Even if he eventually gets...
  31. K

    KFConsole hits 4K 120FPS

    I'm up for some Korean Fried Chicken with a soy and ginger glaze...
  32. K

    Intel Launches Hybrid Processors: Uncompromised PC Experiences for Innovative Form-Factors

    If there was no bias in the benchmark, Snapdragon seems faster than I would have expected. Course, if recompiled for ARM, perceived benefits may just be removal of legacy bloat.
  33. K

    Intel Launches Hybrid Processors: Uncompromised PC Experiences for Innovative Form-Factors

    I was certainly wrong about how the current generation of Atom stuffs the pipes: https://www.anandtech.com/show/15009/intels-new-atom-microarchitecture-the-tremont-core/2 There is no dumbing down the scheduler for security or other reason to be found here. I've been drivelling about an obsolete...
  34. K

    Intel Launches Hybrid Processors: Uncompromised PC Experiences for Innovative Form-Factors

    Each Atom core has 4way threading. Atom stuffs the pipes in-order, round-robin. Which is secure because threads schedule in a dumb manner that doesn't reveal anything. For the same but opposite reason: Hyperthreaded, speculative, out-of-order, superscalar, smart cooperative scheduling reveals...
  35. K

    Intel Launches Hybrid Processors: Uncompromised PC Experiences for Innovative Form-Factors

    As simple in-order barrell SMT (as used in .LITTLE Atom) may be the more latent, yet more secure way to keep pipes full and throughput up. We still need a few power-inefficient out-of-order and superscaler cores for foreground tasks that are secured against sidechain by not supporting SMT. No...
  36. K

    Gateless Majority Logic

    Here's what I come up with to ADD in 1 Klack, no wait for 2nd half-adder. In 74CBT3253 form, that might be <7nS, compared to two stages <14nS. Uses driven logic low, yet one less pole than Konrad's with open low. Figured I could do something useful with that spare. NSUM volunteer'd. Nsum isn't...
  37. K

    Gateless Majority Logic

    So, I've had all the parts for a while now, thats not gonna fly as an excuse. I've also had the week off and done almost nothing useful with it but sleep. But I did clear a little space on top of the freezer to set everything out and motivate myself to start construction. During the time I was...
  38. K

    AMD RDNA 2 gets ray tracing

    If likely to generate more favor than complaint, they would have released already. Therefore I would say AMD's solution must still be unpresentable work in progress. Not to say they won't get there some day, but you can wish in one hand...
  39. K

    Carbon Nanotubule Transistors May Soon Give Waning Moore’s Law a Boost

    Traditional silicon is far from the only other dog in this fight. For carbon nano-tube transistors to matter, they will also have to beat advances in: Strained Silicon Transistors Silicon Carbide Transistors Silicon Germanium Transistors Gallium Arsenide Transistors Gallium Nitride Transistors...
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