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hardwaretech
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Re: We're closing the gap with Arm and x86, claims SiFive: New RISC-V CPU core for PCs... Posted on 25-Oct-2021 12:24:53
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Joined: 5-May-2010 Posts: 60
From: blaine minnesota usa | | |
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Samurai_Crow
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Re: We're closing the gap with Arm and x86, claims SiFive: New RISC-V CPU core for PCs... Posted on 25-Oct-2021 16:13:34
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Elite Member |
Joined: 18-Jan-2003 Posts: 2320
From: Minnesota, USA | | |
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| @hardwaretech
Haiku is being ported to RISC-V also. That's where I'm in the process of jumping ship to. I'm not putting all of my eggs in one basket though. I have high hopes for WebAssembly outside the browser to make architectures and operating systems into faceless plumbing for getting things done instead of a self-contained ecosystem of software base.
Google's account of RISC being faster than CISC is often exaggerated. The larger instructions of RISC machines often have poor code density, reducing the efficiency of the code caches. This makes newer CISC machines much faster than their RISC counterparts. The x64 and 680x0 series CISC processors have excellent code density.
It's just a pity that the Apollo 68080 isn't suited for ASIC production yet because it's stuck at 100 MHz on an FPGA. I've got my design issues with certain aspects of its design, to be sure, but it seems to be the best way to get Amiga's software base back in action. PPC was a mistake mainly because of the drivers for the graphics cards and other peripherals having to be reinvented every time an operating system comes on the scene. Haiku is getting around this by using Linux device drivers for graphics and BSD drivers for some other subsystems. |
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NutsAboutAmiga
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Re: We're closing the gap with Arm and x86, claims SiFive: New RISC-V CPU core for PCs... Posted on 25-Oct-2021 17:10:37
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Elite Member |
Joined: 9-Jun-2004 Posts: 12795
From: Norway | | |
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| @Samurai_Crow
Quote:
Google's account of RISC being faster than CISC is often exaggerated. |
Lots of old articles, people keep think of Intel as CISC CPU, but its more like hybrid, And from Pentium6 they intruded micro code into Intel, (it’s like RISC instructions).
https://en.wikipedia.org/wiki/P6_(microarchitecture)
Code is converted into micro code, its similar to what compiler does, or JIT, but in hardware.
https://en.wikipedia.org/wiki/Die_shrink
Intel doing pretty well at shrink die size at least until 45nm in 2007, after that have struggled. markets highly combative between AMD and Intel, not sure you say the same about PowerPC ( Apple + IBM + Freescale (Motorola) = AIM alliance, cooperation not competition).
Last edited by NutsAboutAmiga on 25-Oct-2021 at 07:54 PM. Last edited by NutsAboutAmiga on 25-Oct-2021 at 05:20 PM. Last edited by NutsAboutAmiga on 25-Oct-2021 at 05:18 PM. Last edited by NutsAboutAmiga on 25-Oct-2021 at 05:16 PM. Last edited by NutsAboutAmiga on 25-Oct-2021 at 05:11 PM.
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bennymee
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Re: We're closing the gap with Arm and x86, claims SiFive: New RISC-V CPU core for PCs... Posted on 4-Dec-2021 17:56:22
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