Clarify that only read-only accesses to the seed CSR are forbidden #1540
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The Zicsr spec already says that CSRs narrower than XLEN are zero-extended.
This is a property of the Zicsr extension, not a property of Zkr.
Write-only accesses are legal (though not useful).
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FYI @mjosaarinen |
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Write-only accesses are legal (though not useful).
See riscv-software-src/riscv-isa-sim#1728