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🧹 [rtl] CPU frontend cleanup #299

Merged
merged 10 commits into from
Apr 11, 2022
Merged

🧹 [rtl] CPU frontend cleanup #299

merged 10 commits into from
Apr 11, 2022

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stnolting
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@stnolting stnolting commented Apr 11, 2022 •
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This a rather large cleanup and optimization PR:

  • remove instruction fetch from CPU's bus unit (this is now a load/store unit processing only data memory accesses)
  • cleanup instruction fetch interface; there were a lot of redundancies in the bus unit's instruction fetch logic
  • optimize CPU front end logic (instruction fetch) reducing area costs

neorv32_cpu

@stnolting stnolting added the HW hardware-related label Apr 11, 2022
@stnolting stnolting self-assigned this Apr 11, 2022
@stnolting stnolting changed the title [rtl] 🧹 CPU frontend cleanup 🧹 [rtl] CPU frontend cleanup Apr 11, 2022
@stnolting stnolting marked this pull request as ready for review April 11, 2022 04:57
@stnolting stnolting merged commit e16ec73 into main Apr 11, 2022
@stnolting stnolting deleted the frontend_cleanup branch April 11, 2022 18:24
@stnolting stnolting added the optimization Make things faster, smaller and more efficient label Apr 13, 2022
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