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xsecret
Joined: 01 Feb 2004
Posts: 1847
Location: France
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 Posted: Mon Feb 22, 2021 6:09 pm Post subject: |
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| lavrentii wrote: | Really an amazing work, it is always e pleasure to watch the development of such masterful work!
You speak about the user having the option to access CPU registers etc. So will the be a possibility to run custom assembly code on the tested CPU? |
Absolutely.
The tool chain is quite easy :
1/ compile code (I use the wonderful sbasm)
2/ convert the binary to a Xilinx compliant .MEM file (I use srec_cat)
3/ Inject the .MEM file inside the FPGA .bit file (with Xilinx's data2mem.exe)
4/ Upload the bit file to the UCA's Flash (or directly to the FPGA) with the UCA Analyzer Tool.
I have a simple .bat to do these steps from command line.
Technically, it's also possible to alter directly the memory (right now, I added an option to read memory content on the fly)
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Universal Chip Analyzer (UCA) : https://x86.fr/uca / http://www.cpu-world.com/forum/viewtopic.php?t=34349 |
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lavrentii
Joined: 14 Feb 2021
Posts: 799
Location: Bulgaria
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| Posted: Tue Feb 23, 2021 5:39 am Post subject: |
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Sound great!
It would be nice if you provide a detailed instruction with an example for people inexperienced with FPGAs. Not now of course - in the future. Keep up the good work! |
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xsecret
Joined: 01 Feb 2004
Posts: 1847
Location: France
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xsecret
Joined: 01 Feb 2004
Posts: 1847
Location: France
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| Posted: Fri Apr 02, 2021 6:16 am Post subject: Final Universal Chip Analyzer disclosed! |
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After 2 months working on the final hardware, changing dozen of PCBs and soldering like crazy, I'm happy to disclose the final "production" UCA! I finally redesigned the base FPGA board to add some future-proof feature like an ARM-based MCU (much more powerful than the original AVR), an USB-C connector, 512 Mb Flash, and more!
Everything is described here : https://x86.fr/final-universal-chip-analyzer-disclosed/ 
I'm now looking for a last "final" betatester. As assembling all boards by hand takes hours, I can only choose one (besides John). If you're interested and follow these conditions:
1. Having time to spend (testing a lot of CPU and reporting issues is long)
2. Having a quite big collection of different chips from the 70s to mid-90 (486s) era, especially with rare IC
3. Living in the EU (Much faster to send new prototypes if needed)
please let me know!
_________________
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Universal Chip Analyzer (UCA) : https://x86.fr/uca / http://www.cpu-world.com/forum/viewtopic.php?t=34349 |
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Fri Apr 02, 2021 7:52 am Post subject: |
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Wow  |
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cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
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| Posted: Fri Apr 02, 2021 8:26 am Post subject: |
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| That's great news! |
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xsecret
Joined: 01 Feb 2004
Posts: 1847
Location: France
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| Posted: Fri Jun 18, 2021 1:21 pm Post subject: Experimental Pentium Overdrive testing with the UCA |
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When I designed the Universal Chip Analyzer, the goal was to be able to test everything from the 4004 to the 486 DX4-100 (and CPUs sharing the same pinout like AMD/Cyrix 5×86).
Any Pentium-class CPU was out of scope due to physical limitation. Even if the UCA architecture can probably handle them from an electrical point of view, the size of adapters is just too small for the 200+ pins Socket needed for a Socket 4 or 5.
Even the Socket 3 used by Pentium Overdrive on the PCB can’t fit between the two connectors. So P5 support on the UCA looked really impossible.
Really? Wait a minute… 
Story continues here: https://x86.fr/experimental-pentium-overdrive-testing-with-the-uca/
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Universal Chip Analyzer (UCA) : https://x86.fr/uca / http://www.cpu-world.com/forum/viewtopic.php?t=34349 |
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Vegeta
Joined: 13 Apr 2013
Posts: 7049
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| Posted: Fri Jun 18, 2021 1:23 pm Post subject: |
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Very cool!
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Fri Jun 18, 2021 5:59 pm Post subject: |
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Very nice!
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My graphics card database can be found at http://www.gpuzoo.com.
I can resist anything except temptation.
Debs |
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xiaoyanxu
Joined: 23 Apr 2011
Posts: 1029
Location: China
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| Posted: Fri Jun 18, 2021 9:15 pm Post subject: |
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Neon
Joined: 04 Feb 2008
Posts: 1512
Location: Dallas, Texas, USA
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| Posted: Fri Jun 18, 2021 10:26 pm Post subject: |
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It will mostly be used to determine function status, instruction set support, and cpuid. So it will be useful for these, too.  |
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xsecret
Joined: 01 Feb 2004
Posts: 1847
Location: France
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xsecret
Joined: 01 Feb 2004
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cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
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| Posted: Tue Jan 25, 2022 2:28 pm Post subject: |
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| That's great news, can't wait to use it. |
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xsecret
Joined: 01 Feb 2004
Posts: 1847
Location: France
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| Posted: Wed Jan 26, 2022 12:08 pm Post subject: All PGA 386s benchmarked with the UCA |
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All PGA 386s benchmarked with the UCA
The C&T Super386 being the last of the PGA 386-compatible CPUs ever released to be supported by the Universal Chip Analyzer, it was time to publish some benchmarks! The current integrated benchmark uses a lot of standard x86 operations (mov, add, conditional and unconditional jumps, …) and integer math instructions (add, sub, div, mult). Keep in mind that the UCA can achieve a 0-wait-states-everywhere communication with the CPU, nullifying any added latencies from chipset, RAM, or whatever. The results below are 100% linked to the raw CPU power without any limitation from the subsystem.
More: https://x86.fr/all-pga-386s-benchmarked-with-the-uca/
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