Author Topic: How to: Design a microprocessor  (Read 43855 times)

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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #30 on: April 26, 2011, 03:41:02 pm »
Logisim doesn't really emulate the hardware well enough to give you a a reasonable way, so effectively no.
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

Offline yrinfish

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Re: How to: Design a microprocessor
« Reply #31 on: April 26, 2011, 04:16:06 pm »
ok, then ill connect the J and the K and put an inverter between them...

That's actually just as useful!!
I need help with Random (x86 Happy), pm me if you want to help :D
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[07:53:14] <+Frey> Y'know, when people descend from my heavens , they're never Chuck Norris
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[07:54:06] <+Frey> Some angels are really nice
[07:54:33] <+Frey> Some are into the whole "scare the locals" bit
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[07:55:38] * +david_ has nothing to do
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[07:59:27] <+OmnomIRC> (O)<yrinfish> lol
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[07:59:44] <+OmnomIRC> (O)<yrinfish> I hate PUSHES, THEY HAUNT ME
[08:00:06] <+Frey> Want an angel to come over and exorcise them?
[08:00:36] <+OmnomIRC> (O)<yrinfish> or, more specific: the fact that sometimes, happy outputs: pushes != pops
[08:00:47] <+OmnomIRC> (O)<yrinfish> I know why
[08:01:01] <+OmnomIRC> (O)<yrinfish> and I can solve it by adding a lookahead
[08:01:10] <+OmnomIRC> (O)<yrinfish> But I don't want to
[08:01:24] <+OmnomIRC> (O)<yrinfish> but continue your story
[08:01:35] <+OmnomIRC> (O)<yrinfish> lol
[08:03:13] <+Frey> Ok, so one day, I was walking to the school bus, and, long story short, got my life saved by an angel
[08:03:27] <+Frey> This one was a scary one
[08:03:42] <+Frey> Same height/age as me
[08:04:14] <+Frey> OMG She was the scariest person I had ever met
[08:04:28] <+Frey> She made the entire football team pee their pants
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[08:05:37] <+OmnomIRC> (O)<yrinfish> lool
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[08:10:04] <+Frey> She was in all my classes too, which was weird, especially as they were all advanced courses and she joined in the middle of the semester
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lol:

[11:30:53] <DThought> <OmnomIRC> (O)<yrinfish> 2 guests are looking at my topic
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Crisps:

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<OmnomIRC> (O)* Keoni29  Wonders if he wants some dip
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<OmnomIRC> (O)* yrinfish  kicks adobe
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<OmnomIRC> (O)* Qwerty.55  runs with him
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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #32 on: May 03, 2011, 03:06:29 am »
Okay, since this is due tomorrow today, I've been working on it. I'll post the rest of the tutorials when I get a life.

Here's a preview to make your head hurt:

∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

Offline TsukasaZX

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Re: How to: Design a microprocessor
« Reply #33 on: May 03, 2011, 03:18:38 am »
Seriously, people. Verilog.

What, exactly, is to be gained by having a gate-level schematic of a microprocessor? If that image is part of your tutorial, then you are far from keeping this tutorial simple. You are treading in a territory that electrical engineers have long forsaken and (I assume) have no intent of returning to.
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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #34 on: May 03, 2011, 03:21:14 am »
Well, one thing to be gained by me is a grade :P

I also just posted this because multiple people have made posts describing gate level schematics.

Also, the image isn't part of the tutorial. That's much worse than what the actual tutorial CPU will be.
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

Offline TsukasaZX

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Re: How to: Design a microprocessor
« Reply #35 on: May 03, 2011, 03:27:12 am »
Well, one thing to be gained by me is a grade :P

I also just posted this because multiple people have made posts describing gate level schematics.

Also, the image isn't part of the tutorial. That's much worse than what the actual tutorial CPU will be.

If your school project is to make an Electrical Engineering major have a cerebral infarction or an aneurysm-hemorrhage, then you get full credit plus some! X_x

I'm glad that image isn't part of the tutorial but still. Some things were never meant to be described on the gate level for reasons of sanity, time, space, and understanding.
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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #36 on: May 03, 2011, 03:29:34 am »
 :w00t:

w00t full credit
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

Offline TsukasaZX

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Re: How to: Design a microprocessor
« Reply #37 on: May 03, 2011, 03:34:45 am »
For the record, I'd just like to state that I'm not trying to flame or troll or insult anybody. Rather, as an EE Major, I am compelled to ... emphasize certain things. If y'all want to build simple microprocessors at the gate level, be my guest. I warned you twice or thrice about how masochistically insane it can be. As Qwerty's brain-buster image so demonstrates, this stuff gets complex fast. The amount of time you'll spend debugging something like that will grow exponentially to the point you may as well call it outright impossible.
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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #38 on: May 03, 2011, 03:36:10 am »
I've spent less than five minutes debugging that microcode instruction ROM and it works perfectly...

I *did* spend an hour wiring it up, though.
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

Offline TsukasaZX

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Re: How to: Design a microprocessor
« Reply #39 on: May 03, 2011, 03:39:15 am »
I've spent less than five minutes debugging that microcode instruction ROM and it works perfectly...

I *did* spend an hour wiring it up, though.

You're either really good or really lucky or both. Fact of the matter is, it's still a pain in the butt. I've spent more time debugging simpler circuits. Furthermore, what's the practical application of creating a simulated schematic like that, anyway?
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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #40 on: May 03, 2011, 03:40:37 am »
There's pretty much no practical application for it, except a general understanding of how computers work at their most basic level.
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

Offline TsukasaZX

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Re: How to: Design a microprocessor
« Reply #41 on: May 03, 2011, 03:47:52 am »
There's pretty much no practical application for it, except a general understanding of how computers work at their most basic level.

I guess that's a worthy reason but it's not exactly a marketable one unless you're going into microprocessor design for a career. Personally, if you want to just generally understand how computers work at their second-most basic level (most basic would be literally arrays of transistors), I'd suggest playing around with simpler sequential logic machines. Build a simple vending machine facsimile or a simple cruise control analogue. They're much, much less difficult in comparison and they teach the general concept of computers as state machines and how volatile memory works.
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Re: How to: Design a microprocessor
« Reply #42 on: May 03, 2011, 03:50:16 am »
I know, designing a vending machine was the *other* project we had to do...

I didn't use state machines to design any of the circuits in that diagram, though ;)
Way too much work to draw out the transition table for such a complex device.
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

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Re: How to: Design a microprocessor
« Reply #43 on: May 03, 2011, 03:55:27 am »
[...]
I didn't use state machines to design any of the circuits in that diagram, though ;)
Way too much work to draw out the transition table for such a complex device.

Eh wot? <translation: please clarify your post for I am confused>
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Offline AngelFish

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Re: How to: Design a microprocessor
« Reply #44 on: May 03, 2011, 04:00:21 am »
Er, I didn't use any of these
∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ