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TMS9900 CPU core creation attempt


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#26 speccery OFFLINE  

speccery

    Chopper Commander

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Posted Yesterday, 2:27 PM

Sweet! Will you post a video of operation when you get to that point?

 

 

Yes of course, that is a promise - if I get this working :)



#27 speccery OFFLINE  

speccery

    Chopper Commander

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  • 180 posts

Posted Yesterday, 2:30 PM

Update at: https://hackaday.io/...ynthesis-passed

 

I added STCR and LDCR instructions. These are messy. DIV and MPY are still missing. But those things are beside the point - I did an ad-hoc totally buggy integration of the CPU core to my TI-99/4A FPGA design - and it did pass synthesis! On the very first time! Wow! Now I only have to make it work (sigh).

 

FPGA synthesis statistics are included in the blog entry I linked to above.






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