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Split CRG functionality for U and S-modes #491

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merged 13 commits into from
Jan 15, 2025
Merged

Split CRG functionality for U and S-modes #491

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129a484
Split sstatus.CRG into CRGS/CRGU
tariqkurd-repo Dec 17, 2024
a819544
rename CRGS/CRGU to SCRG/UCRG and add note about status.SUM
tariqkurd-repo Dec 18, 2024
f4e728e
delete sstatus.SCRG, make PTE.CW mandatory
tariqkurd-repo Jan 10, 2025
4fdcd70
two minor clarifications
tariqkurd-repo Jan 10, 2025
adc0255
simplify mstatus note
tariqkurd-repo Jan 10, 2025
732c2a8
remove pointless note
tariqkurd-repo Jan 10, 2025
1bbb4b9
Update src/cheri-pte-ext.adoc
tariqkurd-repo Jan 10, 2025
4c30952
Update src/cheri-pte-ext.adoc
tariqkurd-repo Jan 13, 2025
7b96caa
clean up PTE table footnotes
tariqkurd-repo Jan 13, 2025
b5ae984
replace Mode with PTE.U
tariqkurd-repo Jan 13, 2025
a16ab1d
fix jamie's comment
tariqkurd-repo Jan 14, 2025
12bacce
Update src/cheri-pte-ext.adoc
tariqkurd-repo Jan 14, 2025
42d50a7
fix notes
tariqkurd-repo Jan 15, 2025
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3 changes: 1 addition & 2 deletions src/cheri-pte-ext.adoc
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Expand Up @@ -204,8 +204,7 @@ When V=1 <<vsstatusreg_pte,vsstatus>>.UCRG is in effect.

<<mstatusreg_pte,mstatus>>.UCRG also exists. Reading or writing it is equivalent to reading or writing <<sstatusreg_pte,sstatus>>.UCRG.

NOTE: There is no current software use for <<mstatusreg_pte,mstatus>>.UCRG.
It is _only_ included not to break the rule that <<sstatusreg_pte,sstatus>> is required to be a subset of <<mstatusreg_pte,mstatus>>.
NOTE: <<sstatusreg_pte,sstatus>> is required to be a subset of <<mstatusreg_pte,mstatus>>, therefore UCRG is included in both.
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