[TUHS] Dhrystone Benchmark (was: Unix on Zilog Z8000?)

[Oliver Lehmann]

By the way.... I found some dhry-c output I ran on WEGA

#83 cc -O -DHZ=60  -DREG=register -c dhry_1.c
#84 cc -O -DREG=register -c dhry_2.c
#85 cc -o dhry dhry_1.o dhry_2.o
#86 echo 30000 | ./dhry | awk '/Lang/ || /^Micro/ {print} \
/per Sec/ {mips=$4/1757;print;printf("Dhrystone MIPS:%38.04f\n",mips)}'
Dhrystone Benchmark, Version 2.1 (Language: C)
Microseconds for one run through Dhrystone: 1652.8
Dhrystones per Second:                       605.0
Dhrystone MIPS:                                0.3443
#87 echo 30000 | ./dhry | awk '/Lang/ || /^Micro/ {print} \
/per Sec/ {mips=$4/1757;print;printf("Dhrystone MIPS:%38.04f\n",mips)}'
Dhrystone Benchmark, Version 2.1 (Language: C)
Microseconds for one run through Dhrystone: 1652.2
Dhrystones per Second:                       605.2
Dhrystone MIPS:                                0.3445
Oliver Lehmann <lehmann at ans-netz.de> wrote:

> Hi,
>
> let me just reply to this single message :)
>
>> Details with Docs, Schematics and Sourcecode at: http://www.pofo.de/P8000/
>
> Wow - my page gets quoted on TUHS-ML :)
>
> The 16 Bit board runs WEGA (renamed copy of ZEUS). The board is a  
> copy of the 16 Bit Board from Zilogs System 8000. Some parts where  
> added because the subsystem design is different (serial ports,  
> harddisk, floppy disks instead of tape,...).
> WEGA only runs on a Z8001 (no Z8002) and the OS was able to execute  
> (and compile) segmented (full memory access) and unsegmented (only  
> 64K access iirc) binaries.
>
> The OS of the P8000 is as I said a copy of ZEUS. The name ZEUS was  
> "replaced" with WEGA in the executables (hex editor).
> Some parts of the system where reverse engineered and altered. I had  
> contact to a kernel developer after the system collapsed who told me  
> some stories ;)
> While the userland ist nearly a 100% copy of ZEUS, main parts of the  
> kernel (dev) where changed to handle the different system layout.
>
> I own a complete and running P8000 as well as a S8000 which could  
> run if I would have
> a) a copy of the Zilog ZEUS Installation Tape (+ system diagnostic tape)
> b) a working tape drive (non-standard tape not compatible to something else)
> c) a SA1100 harddisk, or c) a SMD Controller + SMD disks.
> d) time
>
> After I designed, built and programmed a harddisk subsystem emulator  
> for the P8000, I also planed to emulate the whole disk subsystem of  
> the S8000. Additionally I planned to use a partial backup of a ZEUS  
> installation I have + WEGA to generate a running ZEUS-a-like but  
> then I became a father and time was gone ;)
>
> So right now my S8000 sits in my basement togehter with some circuit  
> ideas and logical analysation results and waits for more time ;)
>
> Some links...
>
> Kernel Sources of WEGA I could get my hands on, or are disassembled  
> and "make-it-C-code-again"ed by me
> https://github.com/OlliL/P8000/tree/master/WEGA/src/uts
> Beside that there is also other stuff like C compiler sources and so  
> on - just navigate around :)
>
> Zilog S8000 pics
> http://pics.pofo.de/index.php?/category/129
>
> EAW P8000 pics
> http://pics.pofo.de/index.php?/category/21
>
> Some S8000 sources (mostly firmware, rebuilt with having access to  
> the P8000 firmware)
> https://github.com/OlliL/S8000
>
> Any questions are welcome....
>
> Best regards,
> Oliver