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 (nobody)...and 176 guests Last 5 registered Oplandisks nothingstar N_loop yipe foxtrotromeo Browse members... |
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650 |
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fails to grok 6502 connectome |
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is this what it looks like inside Data´s mind? |
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the 6502 is only a bit over 3000 transistors, which blows my mind. they did C64, VIC-20, Apple II, NES, with just 3000 transistors? modern CPUs have tens of millions if you know a bit about CPU design it's fascinating being able to see it all at once. then that visualization slows it down so you can see it work all at once, too. you can see the clock flickering at the top and the data/address pins on the bottom left/right changing it up every 2 clock cycles. sort of like some motion you might get with a modular i think that's the PLA at the top, it's just a decoder -- static lookup table that essentially takes incoming signals and routes them into what i assume is the ALU, which is the more visually interesting thing just below. then the lower half of the chip is the registers, the little bit of data it's working with, both input and output. the prominent horizontal/vertical lines in this area are the selection lines turning on and off to select particular registers to read or write for a class many, many years ago, i had to design a small RISC CPU in a circuit simulator. this is much more satisfying, though, being able to see it all move at once. 6502 is like a single house compared to a whole city for a modern CPU; no way to see it like this, really. so data's brain wouldn't be as fun to look at, but i know what you mean, they did use this sort of imagery for scans of his "microcircuitry" or whatever |
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thanks for the link, was looking at it last night, lead me down a youtube rabbit hole, |
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doing in C was one my first programming lessons; dad walked me through it. |
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that is very cool. my dad is not that smart. sometimes i wish he would have taught me something. but he did let me use his toolshop, which was pretty neat computerwise i had a good friend. my first buddy. his father build his own little computer. it was actually just a calculator with a few digits. but my friend got me into computers, early. we both had a c64 when we were like 6 years old hes a programmer now. im not really what you would call a programmer :) |
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