xtheadbb: clarify rotate-right instructions

XUANTIE-RV / thead-extension-spec

XuanTie vendor extension Instruction Set spec

Apache License 2.0

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Closed ptomsich closed 1 year ago

ptomsich commented 1 year ago

Bring the description and operational pseudocode for the rotate-right instructions in-line with other RISC-V specifications:

replaced the 'cyclical shift' terminology with 'rotate'
clarifies that this is a rotate right in the description
updates the operational pseudocode to SAIL
corrects the th.srriw operational pseudocode to include the final sign-extension (and removes the initial zero-extension)

Signed-off-by: Philipp Tomsich philipp.tomsich@vrull.eu

CLAassistant commented 1 year ago

All committers have signed the CLA.

ptomsich commented 1 year ago

@Cooper-Qu Could you take a look and merge?