[Libre-soc-dev] daily kan-ban update 30nov2021

[Tobias Platen]

today: LoadStore1 fixes and cleanup, also looking at recent changes
tomorrow: test pi_st timing and behavior in case of an exception

On Tue, 2021-11-30 at 17:41 +0000, lkcl wrote:
> yesterday:
> 
> * helped andrey with pinmux testing, identify data 
>    structures for IO
> * sorted out core hazard vectors when regfile ports
>    are not "merged" (3R2W instead of 1R1W regfiles)
> * updated new FOSDEM VLSI devroom
> 
> today:
> 
> * got test_core.py working again (last used: 20
>    months ago)
> * issued back-to-back instructions and found 3 bugs
>    immediately.
> 
> core.py now stands a reasonable chance of working as an in-order
> superscalar engine for most ALU operations.  Branch, LDST, TRAP, SPR
> and MMU are all currently set to "full stall" and must complete
> before any other instruction is permitted.
> 
> tomorrow:
> 
> * random instruction issue generation, to see if it copes.
> * increasing the number of Function Units
>   (Reservation Stations) to see if that works
> 
> l.
> 
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