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Forums > C64 Coding > c128 test help needed to improve c128 emulation
2022-01-06 13:20
blacky

Registered: Sep 2007
Posts: 41
c128 test help needed to improve c128 emulation

Hiya all,

I am in the process of improving the MMU emulation in the x128 of the VICE project in collaboration with the author of the Z64K emulator and I need more test results from real c128 hardware.

People who are able and willing to test, please take the mmuswap-??.prg files from

https://sourceforge.net/p/vice-emu/code/HEAD/tree/testprogs/c12..

When running the tests please make sure you do a hard reset / power cycles between tests.

When reporting the results I only need the test nr and the border color.

Thanks in advance to any-1 able and willing to test.
 
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2022-01-10 19:14
hedning

Registered: Mar 2009
Posts: 4606
My tested PAL C128DCR (HB1 005865) has a MOS 8722R2 4786 22.

And I am sure we love to help. :) This is interesting and fun.
2022-01-10 19:48
Hypnosis

Registered: Mar 2015
Posts: 36
8722R2
4487 22
2022-01-10 20:06
Trurl

Registered: Mar 2002
Posts: 59
Do you still take more results at a later time? I have three c128s here but cannot check right now.
2022-01-10 20:07
chatGPZ

Registered: Dec 2001
Posts: 11136
The more data the better :)
2022-01-10 20:21
zenda

Registered: Nov 2006
Posts: 22
Results from my PAL C128 flat (HB51 42784)

8722R2
4385


00 green
01 green
02 green
03 green
04 black
05 green
06 blue
07 green
08 brown
09 green
10 green
11 green
12 green
13 green
14 blue
15 white
16 blue
17 cyan
18 white
19 green
20 white
21 white


...wondering if I even need to put back the top metal shield?
2022-01-13 03:14
blacky

Registered: Sep 2007
Posts: 41
Thank you all for the test results, we were able to learn a lot more from the results and have improved the emulation of x128 and Z64K.

The last part of this mmu testing adventure will be some z80 related tests, don't worry, you won't have to start cp/m or something, the test programs will switch to the z80, run the test and change the border color to indicate the result.

I will start making these tests on the weekend, since working life got in the way for now.
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