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See the CPU execution, Pipeline stages and Caches in action. This emulator animates the high level CPU and Cache state-machine. You can track the state (fetch, decode, execute, memory access, write back and ) of a given instruction... Try it here:

Piyush Itankar

10,539 subscribers

110,499 görüntüleme • 1 yıl önce •via X (Twitter)

Bilim & Teknoloji

Anya Rossi• Live Now

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Matt Figdore profil fotoğrafı

Matt Figdore2 yıl önce

This is the biggest productivity cheat code right now. Kiss reading documents goodbye. You can get an instant summary of any document with this tool.

William Selby profil fotoğrafı

William Selby1 yıl önce

So cool!

Forestman profil fotoğrafı

Forestman1 yıl önce

Impressive, very nice. Great learning tool

Oron Port profil fotoğrafı

Oron Port1 yıl önce

@splinedrive you might be interested

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Most C Programmers don't have a clue as to how the CPU works. Here is a lecture from my course on the C Language that introduces how to visualise the CPU as a C (or general software) Programmer.... More Details are at: Being able to model the behaviour of CPU provides a solid base to reason about your code. The summary is - - The CPU is a state machine which maintains it's states in registers. - It has busses to memory for requesting data/instruction read/writes. - Interrupts to attend to events. I discuss this and more in my course on the C Language.

Most C Programmers don't have a clue as to how the CPU works. Here is a lecture from my course on the C Language that introduces how to visualise the CPU as a C (or general software) Programmer.... More Details are at: Being able to model the behaviour of CPU provides a solid base to reason about your code. The summary is - - The CPU is a state machine which maintains it's states in registers. - It has busses to memory for requesting data/instruction read/writes. - Interrupts to attend to events. I discuss this and more in my course on the C Language.

Piyush Itankar

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Every year I use ZERO "Run plays" for the CPU in #NBA2K26 and a lot of people ask why. People think it causes the CPU to never run plays, but as you can see if you can balance the individual player tendencies correctly the result is a smooth authentic CPU offensive experience.

Every year I use ZERO "Run plays" for the CPU in #NBA2K26 and a lot of people ask why. People think it causes the CPU to never run plays, but as you can see if you can balance the individual player tendencies correctly the result is a smooth authentic CPU offensive experience.

Shady 🧊

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A year ago I made a video about the RIDL CPU vulnerability. In case you haven't seen it, here it is uploaded to Twitter directly! The most interesting part of this has been learning about the prior research that later lead to the discovery of these modern side-channel vulnerabilities. I also spend more time explaining "speculative execution" and how these CPU cache timings can be used as a side-channel. If you haven't seen it yet, give it another chance :)

A year ago I made a video about the RIDL CPU vulnerability. In case you haven't seen it, here it is uploaded to Twitter directly! The most interesting part of this has been learning about the prior research that later lead to the discovery of these modern side-channel vulnerabilities. I also spend more time explaining "speculative execution" and how these CPU cache timings can be used as a side-channel. If you haven't seen it yet, give it another chance :)

LiveOverflow 🔴

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The computer in Minecraft, got bigger! Ryan Boulds recreated real a CPU using redstone logic gates, adders, registers, memory. The build includes over a million blocks and can run arithmetic, comparisons, and even custom programs. He designed machine language to control it.

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If you have an Intel CPU with AMD GPU and play at 1080p or are massively CPU bound in game... I HIGHLY recommend trying re size bar off in options.4 file and smart access memory "off" in the AMD adrenaline software "tuning" tab.

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MurkTweaks

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Fading out audio is one of the most CPU-intensive tasks you can possibly do! When numbers get really small, the number of CPU operations can explode 100-fold. In this LaurieWired video, we'll explore the IEEE 754 standard, the fight between Intel and DEC, and more!

Fading out audio is one of the most CPU-intensive tasks you can possibly do! When numbers get really small, the number of CPU operations can explode 100-fold. In this LaurieWired video, we'll explore the IEEE 754 standard, the fight between Intel and DEC, and more!

LaurieWired

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CPU Cores, Cachelines, and False Sharing Have you ever heard of "False Sharing"? A performance issue arising when independent variables end up in the same cache line and are being updated by respective threads in parallel. Each CPU core update causes a forceful flushing of the cache line for other cores - even though the variables aren't shared! Check the kernel documentation on this topic, too. There is an excellent video showing this in more detail and a fantastic blog article from Netflix Engineering showing how this impacted production - an excellent case study.

CPU Cores, Cachelines, and False Sharing Have you ever heard of "False Sharing"? A performance issue arising when independent variables end up in the same cache line and are being updated by respective threads in parallel. Each CPU core update causes a forceful flushing of the cache line for other cores - even though the variables aren't shared! Check the kernel documentation on this topic, too. There is an excellent video showing this in more detail and a fantastic blog article from Netflix Engineering showing how this impacted production - an excellent case study.

Vivek Galatage

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So a #Madden26 modder named snowmonkey changed the CPU vs CPU camera to be from the head coaches point of view and I love it lol. If you turn off the commentary its like you're in the stadium!

So a #Madden26 modder named snowmonkey changed the CPU vs CPU camera to be from the head coaches point of view and I love it lol. If you turn off the commentary its like you're in the stadium!

Shady 🧊

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Florida offers freedom and opportunity. If you come here to escape the high tax, high regulatory states don’t try and turn this state into the state you fled from. Don’t New York Our Florida! Leave your leftist ideology and big spending ideas at the border.

Florida offers freedom and opportunity. If you come here to escape the high tax, high regulatory states don’t try and turn this state into the state you fled from. Don’t New York Our Florida! Leave your leftist ideology and big spending ideas at the border.

Blaise Ingoglia

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Here is a random performance test of WWE 2K18 running on the Switch 2 in Docked Mode. Full match between Bray Wyatt and Seth Rollins (CPU vs CPU) in the RAW arena. Essentially, the game runs exactly how it should have on the original Switch if it had been properly optimized and tested.

Here is a random performance test of WWE 2K18 running on the Switch 2 in Docked Mode. Full match between Bray Wyatt and Seth Rollins (CPU vs CPU) in the RAW arena. Essentially, the game runs exactly how it should have on the original Switch if it had been properly optimized and tested.

𝕾𝖙𝖆𝖙𝖚𝖘™

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Why did so many languages copy async/await from C#? Anders Hejlsberg(Anders Hejlsberg) - creator of TypeScript, C# & Turbo Pascal - on what they got right with the design: #1 - async/await was designed to solve a common problem in the event-loop model: "A lot of languages are built around cooperative multitasking in the sense that they have an event loop that sits and dispatches events. Then you handle the event and then you yield back to the event handler loop. And it all runs in a single thread cooperatively. The problem with that is if you then want to do some long running work: how do I stop in the middle of this piece of long running work and yield back to the event loop cooperatively? And then when my result is ready, I can come back and continue executing here." #2 - state machines are the solution, but hard to build: "Well, in order to do that in an inverted architecture like that, you have to build a state machine. State machines are notoriously hard for people to implement because you've got to move all of your state off of the stack into objects. And then you have this big case statement that envelopes your entire logic. It's a nightmare to figure out. But, the transformation from serially executing code into a state machine, its continuation-passing-style translation is actually one that you can do in a machine-based fashion." #3 - compilers are good at writing state machines: "You can have the compiler write the state machine if you introduce syntax that allows you to indicate where you want to yield. And that's what await is. Await is basically saying, I want to yield here, and I want to yield this promise, and then when the promise completes, I want you to come back here and continue executing. Then the compiler writes a state machine around it and it actually turns it into this big switch statement and moves all of the state that survives across the await into something that's heap allocated. So it can be brought back. And doing all of that work is something that compilers are great at. And so that was sort of the idea that we have this new style of programming where we're using promises or the equivalent of promises and the ability to yield and then we have callbacks. But trying to write your program in that style, that's also what JavaScript suffered from a lot. It's like all this callback style stuff. With Async and Await, you get the illusion that you're just writing normal sequential code and then the compiler does the painful transformation for you. That turns out to be really useful."

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Nvidia announces the new RTX Spark, a new platform powered by the NX1 CPU, and shows off Spark laptops running 007 First Light and Forza 6. The CPU has 20 ARM based cores and a Blackwell RTX GPU with 6144 CUDA Cores. This is the same core count as a 5070, but with 128GB of unified LPDDR5X RAM memory sitting in the same package as the CPU and GPU. The entire Nvidia software stack is available, particularly CUDA, vital for AI. Nvidia's new laptops will likely be ideal for running local LLMs be cause the unified memory means you can load models up to 120-180B parameters (quantized). These laptops are expected to ship later this year and could become strong competitors to high-end MacBooks and even Mac Studios for local AI workloads, thanks to CUDA support and unified memory. Price is unannounced.

Grummz

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Deeply saddened at the state of Britain. Try and laugh where you can.

Deeply saddened at the state of Britain. Try and laugh where you can.

MinistryofWit

76,559 görüntüleme • 1 yıl önce

For the last few weeks, I've been writing a multi-CPU single-board computer like explorer. I'm calling it CROSSWOZ (Hat tip to Woz and the WOZMON). Seven vintage CPU cores (6502, 65C02, Z80, 8080, 8085, 6809, 1802) share a 64K memory bus and the same WOZMON-style monitor. I can swap CPUs in place. It's got a mini-assembler per CPU, JMON-style debug, and animated paper-tape I/O. I'm pretty pleased with how it's turning out.

For the last few weeks, I've been writing a multi-CPU single-board computer like explorer. I'm calling it CROSSWOZ (Hat tip to Woz and the WOZMON). Seven vintage CPU cores (6502, 65C02, Z80, 8080, 8085, 6809, 1802) share a 64K memory bus and the same WOZMON-style monitor. I can swap CPUs in place. It's got a mini-assembler per CPU, JMON-style debug, and animated paper-tape I/O. I'm pretty pleased with how it's turning out.

mrdoornbos

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KianV Stealth Linux RISC-V SoC. First bring-up with a 5-stage pipeline CPU and GShare branch prediction. Running at 25 MHz for now during bring-up, but already timing clean at 50 MHz. Ported my old SoC parts like SDRAM controller and UART to the new pipeline core. Caches are still primitive, memory is single-beat and one clock domain only. Tons of potential left. Fun summer ahead.

KianV Stealth Linux RISC-V SoC. First bring-up with a 5-stage pipeline CPU and GShare branch prediction. Running at 25 MHz for now during bring-up, but already timing clean at 50 MHz. Ported my old SoC parts like SDRAM controller and UART to the new pipeline core. Caches are still primitive, memory is single-beat and one clock domain only. Tons of potential left. Fun summer ahead.

logic destroyer

39,786 görüntüleme • 1 ay önce

Dude, I haven’t touched my CPU since February. Getting back into it is crazy, but I just brought it back to life—synthesized and simulated. Can’t wait to hack on it again at the end of the month. It’s insanely fast and will be a Linux CPU. I’m super hyped. SystemVerilog forever.

Dude, I haven’t touched my CPU since February. Getting back into it is crazy, but I just brought it back to life—synthesized and simulated. Can’t wait to hack on it again at the end of the month. It’s insanely fast and will be a Linux CPU. I’m super hyped. SystemVerilog forever.

logic destroyer

50,026 görüntüleme • 7 ay önce

Built a lightweight mobile SDK that lets our QA agent know exactly what's happening under the hood. It tracks: - CPU/memory performance - Network requests & failures - Screen transitions - Tap gestures - Full distributed traces Give an agent this level of context and it stops guessing why a new feature isn't working. It just reads the trace and fixes the code.

Built a lightweight mobile SDK that lets our QA agent know exactly what's happening under the hood. It tracks: - CPU/memory performance - Network requests & failures - Screen transitions - Tap gestures - Full distributed traces Give an agent this level of context and it stops guessing why a new feature isn't working. It just reads the trace and fixes the code.

Landseer Enga

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"This is where the state championships belong." Illinois State football is back in the FCS playoffs, but will open on the road despite being a higher seed because of IL high school state title games hosted at Hancock. I asked Brock Spack about it and here is his full answer.

"This is where the state championships belong." Illinois State football is back in the FCS playoffs, but will open on the road despite being a higher seed because of IL high school state title games hosted at Hancock. I asked Brock Spack about it and here is his full answer.

Patrick Cunningham

162,402 görüntüleme • 1 yıl önce

suddenly memory cache, engine and the whole game can handle this level of skin, but it couldn’t one year ago when you released soul fighter samira 💀 greed works wonders i guess

suddenly memory cache, engine and the whole game can handle this level of skin, but it couldn’t one year ago when you released soul fighter samira 💀 greed works wonders i guess

𝗯𝗮𝗲𝗽𝗵𝗶𝗻𝗲

895,168 görüntüleme • 1 yıl önce

🚨 UTAH GOV. COX ON CHARLIE KIRK: "I want to be very clear: this is a POLITICAL ASSASSlNATION" "And I just want to remind you, we still have the death penalty here in the state of Utah." Execute this piece of trash. And do it publicly.

Sensitive content

🚨 UTAH GOV. COX ON CHARLIE KIRK: "I want to be very clear: this is a POLITICAL ASSASSlNATION" "And I just want to remind you, we still have the death penalty here in the state of Utah." Execute this piece of trash. And do it publicly.

Nick Sortor

8,364,004 görüntüleme • 10 ay önce