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Fixed bug #47 discovered by Lee Moore.

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ECALL and EBREAK do not commit their results.
This commit is contained in:
Ross Thompson 2023-02-02 08:52:06 -06:00
parent d62a72a76f
commit 230888db8b
1 changed files with 1 additions and 1 deletions
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pipelined/src/hazard/hazard.sv
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@ -68,7 +68,7 @@ module hazard (
assign FlushDCause = TrapM | RetM | CSRWriteFenceM | BPPredWrongE; assign FlushDCause = TrapM | RetM | CSRWriteFenceM | BPPredWrongE;
assign FlushECause = TrapM | RetM | CSRWriteFenceM |(BPPredWrongE & ~(DivBusyE | FDivBusyE)); assign FlushECause = TrapM | RetM | CSRWriteFenceM |(BPPredWrongE & ~(DivBusyE | FDivBusyE));
assign FlushMCause = TrapM | RetM | CSRWriteFenceM; assign FlushMCause = TrapM | RetM | CSRWriteFenceM;
assign FlushWCause = TrapM & ~(BreakpointFaultM | EcallFaultM); assign FlushWCause = TrapM;
// Stall causes // Stall causes
// Most data depenency stalls are identified in the decode stage // Most data depenency stalls are identified in the decode stage