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[rtl] CPU: optimizations and cleanup #462

Merged
merged 6 commits into from Dec 21, 2022
Merged

[rtl] CPU: optimizations and cleanup #462

merged 6 commits into from Dec 21, 2022

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stnolting
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@stnolting stnolting commented Dec 20, 2022 •
edited

  • remove reset to don't care ('-')
  • connect FIFO reset
  • optimization in branch detection logic (improved area and timing)
  • optimization in CSR access check logic (improved area and timing)
  • minor code edits and cleanups
  • closed further illegal instruction encoding hole (CSR access instruction with funct3 = 100)

@stnolting stnolting added enhancement New feature or request HW hardware-related coding-style Related to the HW/SW coding style labels Dec 20, 2022
@stnolting stnolting self-assigned this Dec 20, 2022
@stnolting stnolting added optimization Make things faster, smaller and more efficient and removed enhancement New feature or request labels Dec 20, 2022
@stnolting
[rtl] CPU control: cleanups, fixes and optimization
4e4c44c 
* connect reset of IPB FIFO
* optimize branch condition logic
* remove reset-to-don't-care
* optimize CSR access check logic
* close further illegal instruction encoding hole
* minor code cleanups
@stnolting
[docs] CSR list: minor edits
f59303c
@stnolting
[CHANGELOG] add v1.7.8.11
c8c2747
@stnolting stnolting marked this pull request as ready for review December 21, 2022 05:41
@stnolting stnolting merged commit aec195f into main Dec 21, 2022
@stnolting stnolting deleted the cpu_rtl_updates branch December 21, 2022 11:35
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coding-style Related to the HW/SW coding style HW hardware-related optimization Make things faster, smaller and more efficient
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