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Corr.: 4 Months --> 4 Weeks (Re: For WebGPU I first had SIMD in mind)

From Mild Shock <janburse@fastmail.fm>
Newsgroups sci.logic, comp.lang.prolog, sci.physics
Subject Corr.: 4 Months --> 4 Weeks (Re: For WebGPU I first had SIMD in mind)
Date 2026-07-30 20:05 +0200
Message-ID <114g3po$m2d8$3@solani.org> (permalink)
References (5 earlier) <114dfer$ko2q$3@solani.org> <114dgj9$kora$3@solani.org> <114dp6a$kf2n$4@solani.org> <114g24j$m15d$3@solani.org> <114g2vs$m1rd$4@solani.org>

Cross-posted to 3 groups.

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Hi,

There is a typo here:

Subject: I wrote Hack VM for π-WAM from scratch
[4 Months total JavaScript, Python and Java]

It should say:

Subject: I wrote Hack VM for π-WAM from scratch
[4 Weeks total JavaScript, Python and Java]

Sorry!

Bye

Mild Shock schrieb:
> Hi,
> 
> The op-codes are all uniform, have the
> same sub fields. Already Z-80 CPU differs here.
> Another difference to a Z-80 CPU is that
> 
> their instruction stream was 8-bit, instructions
> can 1, 2, 3 or 4 byte long. On the other
> hand in my Hack VM all instructions are
> 
> one 32-bit chunk. The porting of a first
> prototype that I already had, to WebGPU / WGSL
> only took like 1-2 hours. The execution
> 
> of Hack VM is very simple, version 1.0,
> for a single shader:
> 
> fn run() {
>      var pc : i32 = 0;
>      var accu : i32 = 0;
>      while (pc < i32(arrayLength(&code))) {
>          var instr : i32 = code[pc];
>          pc += 1;
>          var value : i32 = run_get(instr);
>          accu = run_fun(instr, accu, value);
>          run_set(instr, accu);
>          pc += run_jump(instr, accu);
>      }
> }
> 
> https://github.com/Jean-Luc-Picard-2021/gigabudget/blob/b8946e891be774c40522267ab17062d32b023e7a/course/example63/boot.mjs#L176-L187 
> 
> 
> I first though this will be perfect for
> SIMD. Until I learnt that modern GPUs have
> anyway MIMD. Hell Yeah, thats much better!
> 
> Bye
> 
> Mild Shock schrieb:
>> Hi,
>>
>>  > Just downloading some other person's code
>>
>> I didn't do that, I wrote Hack VM for pi-WAM
>> from scratch, over the last 4 weeks. I came
>> back from holidays on end of June 2026, and now
>>
>> we have end of July 2026. But its only possible
>> because the instruction set is very smal, like
>> ca. 8 functions and ca. 8 modes and ca. 8 conditions,
>>
>> so its ca. 8 x 8 x 8 = 512 opcodes, each has an
>> A parameter and a D parameter simultaneously.
>> It has currently the following CPU backends:
>>
>>   - Now supports interleaved synchronous emulation.
>>   - Now supports warp parallelism via Java platform threads.
>>   - Now supports warp parallelism via Python system threads.
>>   - Now supports warp parallelism via JavaScript worker threads.
>>   - Note: For Python free threads are not yet fully tested.
>>   - Note: For JavaScript web workers are not yet fully tested.
>>
>> https://www.dogelog.ch/typtab/doclet/book/14_install/05_notes22/110_224.html 
>>
>>
>> But frankly I came to encounter Hack not from
>> the usual university curriculum web resources,
>> but indirectly through a post about a Prolog
>>
>> emulation of Hack, using constrained horn clauses (CHC):
>>
>> Verifying Nand2Tetris Assembly
>> https://www.philipzucker.com/nand2tetris-chc/
>>
>> The binary encoding is currently that the functions,
>> modes and conditions eat up a nibble (4-bit), in
>> total 12-bit, which I use then 10-bit for A parameter
>>
>> and 10-bit for D parameter. I used AI freemium, Codex
>> by ChatGPT from within IntelliJ to do some fragment
>> code translations automatically from Java to JavaScript
>>
>> or from JavaScript to Python.
>>
>> Have Fun!
>>
>> Bye

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Thread

The Wuhan Virus that destroyed Python [ggml Manifesto] Mild Shock <janburse@fastmail.fm> - 2026-07-22 21:01 +0200
  Deadlock Exorcism: Switch from Push to Pull [A pi-calculus Specification of Prolog] (Re: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-23 00:25 +0200
    Why do you even need a mpmc queue? [Thunder Kittens] (Re: Deadlock Exorcism: Switch from Push to Pull) Mild Shock <janburse@fastmail.fm> - 2026-07-23 08:45 +0200
      Trivial balancing example for (int i=0; i<global_id; i++) (Re: Why do you even need a mpmc queue? [Thunder Kittens]) Mild Shock <janburse@fastmail.fm> - 2026-07-23 08:55 +0200
        The Pixel Phone AI Experiment Song (Enqueue/dequeue need not be fast and can spinn ["fairness" questions]) Mild Shock <janburse@fastmail.fm> - 2026-07-23 09:19 +0200
          Enqueue/dequeue need not be fast and can spinn ["fairness" questions] (Re: The Pixel Phone AI Experiment Song (Enqueue/dequeue need not be fast and can spinn ["fairness" questions]) Mild Shock <janburse@fastmail.fm> - 2026-07-23 09:23 +0200
      And, where did I talk about rockets? [Hint its about xAI's Grok] (Re: Why do you even need a mpmc queue? [Thunder Kittens]) Mild Shock <janburse@fastmail.fm> - 2026-07-25 01:25 +0200
        Why forget something, that was never on my mind (Re: And, where did I talk about rockets? [Hint its about xAI's Grok]) Mild Shock <janburse@fastmail.fm> - 2026-07-25 09:49 +0200
      Example Mandel Brot rendering [Faster with MIMD] (Was: Why do you even need a mpmc queue? [Thunder Kittens]) Mild Shock <janburse@fastmail.fm> - 2026-07-25 09:56 +0200
  Potential Python Recovery: Free Threading [3.13 release] (Re: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-23 10:21 +0200
  The things XILINX braught to the AMD table (Re: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-23 18:48 +0200
    NVIDIA evacuated its Chinese market [Tau Scaling] (Re: The things XILINX braught to the AMD table) Mild Shock <janburse@fastmail.fm> - 2026-07-23 19:13 +0200
      Micro penis mother sung arias (Re: NVIDIA evacuated its Chinese market [Tau Scaling]) Mild Shock <janburse@fastmail.fm> - 2026-07-24 14:40 +0200
        Micro penis brain is in constant hiatus (Re: Micro penis mother sung arias) Mild Shock <janburse@fastmail.fm> - 2026-07-24 15:27 +0200
          Ignoramus or Ignorabimus: I don't care [(Re: Micro penis brain is in constant hiatus (Re: Micro penis mother sung arias) Mild Shock <janburse@fastmail.fm> - 2026-07-24 15:35 +0200
            You are a moron, brainless putin payed (Re: Ignoramus or Ignorabimus: I don't care) Mild Shock <janburse@fastmail.fm> - 2026-07-24 18:01 +0200
              Yeah keep reading my posts, uninspired fool (Re: You are a moron, brainless putin payed) Mild Shock <janburse@fastmail.fm> - 2026-07-24 19:47 +0200
            Out of the blue accusation span 15 days [Empirical USENET study] (Re: Ignoramus or Ignorabimus: I don't care) Mild Shock <janburse@fastmail.fm> - 2026-07-24 20:27 +0200
            A brain desease of 20 days [Rossy Boy] (Re: Ignoramus or Ignorabimus: I don't care) Mild Shock <janburse@fastmail.fm> - 2026-07-29 18:41 +0200
              I didn't use a Ryzen Halo, whats wrong with you? (Re: A brain desease of 20 days [Rossy Boy]) Mild Shock <janburse@fastmail.fm> - 2026-07-29 23:25 +0200
      Re: NVIDIA evacuated its Chinese market [Tau Scaling] (Re: The things XILINX braught to the AMD table) Mild Shock <janburse@fastmail.fm> - 2026-07-28 14:17 +0200
      ASML stocks are plunging, bye bye dutchies (Re: NVIDIA evacuated its Chinese market [Tau Scaling]) Mild Shock <janburse@fastmail.fm> - 2026-07-28 14:18 +0200
  Little Data Center on Your Palm [AI Laptops for 500 USD] (Re: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-24 17:59 +0200
    2008: 4 Blades + Tesla S1070 versus 2026: 1 AI Laptop (Re: Little Data Center on Your Palm [AI Laptops for 500 USD]) Mild Shock <janburse@fastmail.fm> - 2026-07-24 18:15 +0200
  Hurry the blue bus doesnt stop indefinitely (Re: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-24 20:37 +0200
    Not SIMD, a MIMD design for NVIDIA Volta (Re: Hurry the blue bus doesnt stop indefinitely) Mild Shock <janburse@fastmail.fm> - 2026-07-24 20:58 +0200
      Could take 3-4 months find machine / browser (Re: Not SIMD, a MIMD design for NVIDIA Volta) Mild Shock <janburse@fastmail.fm> - 2026-07-24 21:16 +0200
      The Koan of pi-WAM queues [FORTRAN-S] (Re: Not SIMD, a MIMD design for NVIDIA Volta) Mild Shock <janburse@fastmail.fm> - 2026-07-26 19:54 +0200
        The turbo capping of AI Laptops (Was: The Koan of pi-WAM queues [FORTRAN-S]) Mild Shock <janburse@fastmail.fm> - 2026-07-26 20:00 +0200
        Re: The Koan of pi-WAM queues [FORTRAN-S] (Re: Not SIMD, a MIMD design for NVIDIA Volta) Mild Shock <janburse@fastmail.fm> - 2026-07-27 09:16 +0200
        Why forget Bulgarians, never on my mind (Re: The Koan of pi-WAM queues [FORTRAN-S]) Mild Shock <janburse@fastmail.fm> - 2026-07-27 09:16 +0200
          miniTriton CUDA is an alternative to torch variants (Re: Why forget Bulgarians, never on my mind) Mild Shock <janburse@fastmail.fm> - 2026-07-27 09:52 +0200
            Andrej Karpathy original gangster of Budget Laptop (Re: miniTriton CUDA is an alternative to torch variants) Mild Shock <janburse@fastmail.fm> - 2026-07-27 09:54 +0200
          The evolution of hardware and GPT-2 training (Re: Why forget Bulgarians, never on my mind) Mild Shock <janburse@fastmail.fm> - 2026-07-27 10:57 +0200
            How speed up π-WAM with vector operations (Re: The evolution of hardware and GPT-2 training) Mild Shock <janburse@fastmail.fm> - 2026-07-27 11:10 +0200
              AI accelerator extend from GPU to CPU [Zero Copying] (Re: How speed up π-WAM with vector operations) Mild Shock <janburse@fastmail.fm> - 2026-07-27 13:21 +0200
                The invention of vector and matrix registers [NVIDIA Volta] (Re: AI accelerator extend from GPU to CPU [Zero Copying]) Mild Shock <janburse@fastmail.fm> - 2026-07-27 13:22 +0200
                Re: The invention of vector and matrix registers [NVIDIA Volta] (Re: AI accelerator extend from GPU to CPU [Zero Copying]) Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-27 07:34 -0700
                Maybe they should have named it NVIDIA Einstein [Rossy Boy Toe Sucking] (Was: The invention of vector and matrix registers [NVIDIA Volta]) Mild Shock <janburse@fastmail.fm> - 2026-07-27 17:12 +0200
                Re: The invention of vector and matrix registers [NVIDIA Volta] (Re: AI accelerator extend from GPU to CPU [Zero Copying]) R Kym Horsell <kym@sdf.com> - 2026-07-27 15:43 +0000
                Re: The invention of vector and matrix registers [NVIDIA Volta] (Re: AI accelerator extend from GPU to CPU [Zero Copying]) R Kym Horsell <kymhorsell@gmail.com> - 2026-07-27 15:46 +0000
                π-WAM is not adding decimals, it is removing decimals (Was: The invention of vector and matrix registers [NVIDIA Volta]) Mild Shock <janburse@fastmail.fm> - 2026-07-27 18:34 +0200
                In Budget Laptops the TOPS come with low energy footprint (Re: π-WAM is not adding decimals, it is removing decimals) Mild Shock <janburse@fastmail.fm> - 2026-07-27 18:45 +0200
    Potato Computer owner impressed by Ukraine Tech [Rossy Boys Brother?] (Was: Hurry the blue bus doesnt stop indefinitely) Mild Shock <janburse@fastmail.fm> - 2026-07-27 16:56 +0200
      Rossy Boy is neither Einstein nor Zweistein (Was: Potato Computer owner impressed by Ukraine Tech) Mild Shock <janburse@fastmail.fm> - 2026-07-27 18:25 +0200
        You are still chewing on SIMD. LoL (Re: Rossy Boy is neither Einstein nor Zweistein) Mild Shock <janburse@fastmail.fm> - 2026-07-29 17:12 +0200
          Hurry Rossy Boy, the blue bus is waiting (Re: You are still chewing on SIMD. LoL) Mild Shock <janburse@fastmail.fm> - 2026-07-29 17:53 +0200
            Look how they advertized CUDA and logical threads (Re: Hurry Rossy Boy, the blue bus is waiting) Mild Shock <janburse@fastmail.fm> - 2026-07-29 17:55 +0200
              Forget any arithmetization of product FSA (Re: Look how they advertized CUDA and logical threads) Mild Shock <janburse@fastmail.fm> - 2026-07-29 17:58 +0200
          Rossy Boys tears could cool a data center [pi-WAM Interleaved Synchronized Emulator] (Re: You are still chewing on SIMD. LoL) Mild Shock <janburse@fastmail.fm> - 2026-07-29 20:06 +0200
            I don't use Rust, you are crazy [Jump off a bridge, idiot] (Re: Rossy Boys tears could cool a data center [pi-WAM Interleaved Synchronized Emulator]) Mild Shock <janburse@fastmail.fm> - 2026-07-29 20:25 +0200
              Hack ecosystem ignorance paired with paranoia [Nand to Tetris] (Re: I don't use Rust, you are crazy) Mild Shock <janburse@fastmail.fm> - 2026-07-29 22:52 +0200
                A funny Q16.16 experiment with Hack (Re: Hack ecosystem ignorance paired with paranoia [Nand to Tetris]) Mild Shock <janburse@fastmail.fm> - 2026-07-29 23:11 +0200
                Summer Challenge: libSQL = Prolog+Modes [VDBE versus π-WAM] (Was: A funny Q16.16 experiment with Hack) Mild Shock <janburse@fastmail.fm> - 2026-07-30 11:25 +0200
                I wrote Hack VM for π-WAM from scratch [4 Months total JavaScript, Python and Java] (Re: Hack ecosystem ignorance paired with paranoia) Mild Shock <janburse@fastmail.fm> - 2026-07-30 19:37 +0200
                For WebGPU I first had SIMD in mind (Re: I wrote Hack VM for π-WAM from scratch) Mild Shock <janburse@fastmail.fm> - 2026-07-30 19:51 +0200
                Corr.: 4 Months --> 4 Weeks (Re: For WebGPU I first had SIMD in mind) Mild Shock <janburse@fastmail.fm> - 2026-07-30 20:05 +0200
                MIPS is a big Huffman mess [But Hack could do it] (Re: I wrote Hack VM for π-WAM from scratch) Mild Shock <janburse@fastmail.fm> - 2026-07-30 22:32 +0200
                Not declarative with PHI (Φ) nodes (Was: MIPS is a big Huffman mess [But Hack could do it]) Mild Shock <janburse@fastmail.fm> - 2026-07-30 22:38 +0200
                Not declarative with PHI (Φ) nodes (Re: MIPS is a big Huffman mess [But Hack could do it]) Mild Shock <janburse@fastmail.fm> - 2026-07-30 22:39 +0200
  Got it. Or are you too stupid? [New Usenet Mantra] (Was: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-27 18:59 +0200
  Lamas in a cradle and Lamas on the edge [Red Pyjama] (Re: The Wuhan Virus that destroyed Python [ggml Manifesto]) Mild Shock <janburse@fastmail.fm> - 2026-07-29 13:03 +0200
    AI Accelerators and ISO Prolog multi-threading (Re: Lamas in a cradle and Lamas on the edge [Red Pyjama]) Mild Shock <janburse@fastmail.fm> - 2026-07-29 17:02 +0200
      Actor/Erlang is dead, no Thread and Mailbox conflation [golang channels] (Re: AI Accelerators and ISO Prolog multi-threading) (Re: Lamas in a cradle and Lamas on the edge [Red Pyjama]) Mild Shock <janburse@fastmail.fm> - 2026-07-29 17:04 +0200

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