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restored intPending logic to be sticky for PLIC

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This commit is contained in:
David Harris 2022-07-16 17:43:31 -07:00
parent a4cd157f00
commit 6e1d4ec4ed
1 changed files with 2 additions and 2 deletions
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pipelined/src/uncore/plic_apb.sv
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@ -172,8 +172,8 @@ module plic_apb (
end
// pending interrupt requests
//assign nextIntPending = (intPending | requests) & ~intInProgress; //
assign nextIntPending = requests; // DH: RT made this change May 2022, but it seems to be a bug to not consider intInProgress; see May 23, 2022 slack discussion
assign nextIntPending = (intPending | requests) & ~intInProgress; // dh changed back 7/9/22 see if Buildroot still boots. Confirmed to boot successfully.
//assign nextIntPending = requests; // DH: RT made this change May 2022, but it seems to be a bug to not consider intInProgress; see May 23, 2022 slack discussion
flopr #(`N) intPendingFlop(PCLK,~PRESETn,nextIntPending,intPending);
// context-dependent signals