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Improved avoidance of initial timer interrupt in MMIOPlatform; removed spurios MSTATUS TV report on CSRRS/C with rs1==0

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rsnikhil
2020-03-11 22:42:18 -04:00
parent a19eb97f34
commit f02e9af515
19 changed files with 10931 additions and 10950 deletions
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5
src_Core/RISCY_OOO/procs/RV64G_OOO/RenameStage.bsv
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@@ -531,7 +531,10 @@ module mkRenameStage#(RenameInput inIfc)(RenameStage);
&&& ((dInst.iType == Csr)
&& ((csr == CSRfflags) || (csr == CSRfrm) || (csr == CSRfcsr))))
begin
will_dirty_fpu_state = True;
Bool is_CSRR_W = (dInst.execFunc == tagged Alu Csrw);
Bool rs1_is_0 = ((arch_regs.src2 == tagged Valid (tagged Gpr 0))
|| (dInst.imm == tagged Valid 0));
will_dirty_fpu_state = (is_CSRR_W || (! rs1_is_0));
end
RobInstState rob_inst_state = to_exec ? NotDone : Executed;