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✨ add support for Zalrsc ISA extension #1181
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Labels
enhancement
New feature or request
HW
Hardware-related
risc-v compliance
Modification to comply with official RISC-V specs.
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This PR (re)adds support for the
Zalrsc
ISA extension that compormises two new instructions:lr.w
load word and register reservationsc.w
store word conditionally if reservation still validThe RISC-V
A
extension is now fully supported if both subextstion are enabled:Zaamo
- atomic read-modify-write operationsZalrsc
- atomic reservation-set operations