Question: Timing Changes about beebfpga

[hoglet67]

There is a build script for the MMB file in git:
https://github.com/hoglet67/BeebFpga/blob/master/test/build.sh

This needs mmb_utils on your path:
https://sweh.spuddy.org/Beeb/mmb_utils.html

Here's an actual BEEB.MMB file in case you struggle to build it:
https://www.dropbox.com/s/nh0cw9dtb9adan1/TEST_BEEB_MMB.zip?dl=0

There are some notes here:
https://github.com/hoglet67/BeebFpga/blob/master/test/NOTES.txt

[hoglet67]

That set of changes was pretty hairy!!

Sorry, the comment is very confusing. The sub-cycle timing is the same on the Beeb and the Master, it's just I was using the Master at the time as the demos that were failing were Master only. There is a whole thread on these changes, see this post for the sub-cycle timing one:

https://stardot.org.uk/forums/viewtopic.php?p=359176#p359176

The test case that was failing is known as the "upside doom" test case, and can be found in this post:

https://stardot.org.uk/forums/viewtopic.php?f=3&t=22008&p=312652#p312652

Do you have access to a real Master?

It would definitely be worth you running through each of the demos / test cases. Somewhere I have an MMB image that contains all of them.

[sharpie7]

Hi David

It would be really helpful if you can find the test cases. I don't think common games are going to really test this level of detail.

I have a real BBC B, but not a Master.

Thanks for the clarification on the timing. I will take a look at the threads.