If 32-bit computing has been proven good enough for most purposes, I say 64-bit computing is the perfect bit-ness that can cater to most human computing needs for the next millenia up to Pluto (and beyond).
But how about 128-bit computing?
Is it really necessary?
What would happen to the GPRs? What would be their names? WAX, WDX? Will they be phased out in favor of SSE registers?
What would happen to the x86 architecture? Will IBM becomes king again?
Should be backward compatible or not?
What could be the costs in general?
What kind of floating point maths would that be?
Is it smart to invest in AVX2 if people are already talking about 128-bit CPUs?
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i would take the 16bit, 32bit, 64bit as chunk block of bits to process in one time, apart from the idea of memory addressing,
i don't know exactly how intel processor in nanometer sized object did all those magics,
but does having more memories equal good and solid solution for future? 128gb ddr4, 1tb ddr4, etc?
or the bottle neck is in the part, accepting input, sudden input, and processing those inputs?
assume you got a program with 10 million lines,
you change a few input parameters, and now you need to re-run from line 1 to 10 million lines to get the intended result,
this seem like a problem to me, at this moment,
the way we program, writing codes, sending commands, seems like a problem to me too,
I'd prefer some sort of programmable CPU or neural network CPU, or a CPU with a massive amount of cores, but each having its own RAM. I mean it wouldn't be like these we have, they'd be separated for their own tasks and only merged together once (cleaner design in my opinion) with a memory map or something. This way pointers can stay small, so each CPU will have high performance. 128-bit would use 16 bytes per pointer, that's an entire cache line.
However this CPU would have complex instructions optimized for particular situations not stupid RISC-like, well it's still a dream ofc, since the thread isn't serious
I guess we'll see some more weird stuff since CPUs are almost at their limit now (10nm currently, so only 2 generations more max before quantum limit, we'll need a redesign of the hardware, totally).
That's cool, first time I hear of it, "multi computer chip" sounds like what I've been saying.
Though I don't expect them to be programmable, probably that isn't feasible at all in terms of technical problems/physics while still retaining performance (just a dream of mine ofc).
(when I say programmable I don't mean a sequence of instructions, I mean like "programming" your own instructions with meta-instructions; this would be really cool for special purpose applications, it may take a performance hit when the app starts as it has to flush and the CPU "optimize" the instructions being programmed, but then it should be super fast ofc, that's my dream anyway, even if unrealistic )
Hmm I always thought FPGAs can be programmed with a lot of time/overhead in advance, I'm thinking something more like actual CPU "meta-instructions" programming itself for each application. (I mean yeah it will take a hit but even 1 second is a stretch, if that, and that's nothing)
(it would be separated for each application since it's supposed to be like the greenarrays chips with each being a separated "computer")
Joined: 24 Aug 2004
Location: The total perspective vortex
FPGAs use internal RAM to hold the programming for the logic gates. And the RAM can be changed at will, thus the logic connections can be changed at will. The overhead comes from deciding what are the proper binary bits to put into the RAM. You can buy IP for 6502, 8051, Z80 etc., or if you are keen you can DIY anything you fancy.
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