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fix timing of delayed interrupt

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This commit is contained in:
Skylar Litz 2021-11-11 09:35:51 -08:00
parent e90d0eee72
commit 99a15e7897
1 changed files with 14 additions and 10 deletions
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24
wally-pipelined/testbench/testbench-linux.sv
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@ -470,8 +470,12 @@ module testbench();
if(CheckMIPFutureE) CheckMIPFutureE <= 0; if(CheckMIPFutureE) CheckMIPFutureE <= 0;
CheckMIPFutureM <= CheckMIPFutureE; CheckMIPFutureM <= CheckMIPFutureE;
if(CheckMIPFutureM) begin if(CheckMIPFutureM) begin
if((ExpectedPCM != MepcExpected) & ((MepcExpected - ExpectedPCM) * (MepcExpected - ExpectedPCM) <= 16)) begin $display("%tns: ExpectedPCM %x",$time,ExpectedPCM);
RequestDelayedMIP = 1; $display("%tns: ExpectedPCE %x",$time,ExpectedPCE);
$display("%tns: ExpectedPCW %x",$time,ExpectedPCW);
if((ExpectedPCE != MepcExpected) & ((MepcExpected - ExpectedPCE) * (MepcExpected - ExpectedPCE) <= 16)) begin
// if((ExpectedPCM != MepcExpected) & ((MepcExpected - ExpectedPCM) * (MepcExpected - ExpectedPCM) <= 16)) begin
RequestDelayedMIP <= 1;
$display("%tns: Requesting Delayed MIP. Current MEPC value is %x",$time,MepcExpected); $display("%tns: Requesting Delayed MIP. Current MEPC value is %x",$time,MepcExpected);
end else begin // update MIP immediately end else begin // update MIP immediately
$display("%tns: Updating MIP to %x",$time,NextMIPexpected); $display("%tns: Updating MIP to %x",$time,NextMIPexpected);
@ -488,14 +492,14 @@ module testbench();
$display("%tn: ExpectedCSRArrayM[NumCSRM] %x",$time,ExpectedCSRArrayM[NumCSRM]); $display("%tn: ExpectedCSRArrayM[NumCSRM] %x",$time,ExpectedCSRArrayM[NumCSRM]);
$display("%tn: ExpectedCSRArrayValueM[NumCSRM] %x",$time,ExpectedCSRArrayValueM[NumCSRM]); $display("%tn: ExpectedCSRArrayValueM[NumCSRM] %x",$time,ExpectedCSRArrayValueM[NumCSRM]);
if((ExpectedPCM != MepcExpected) & ((MepcExpected - ExpectedPCM) * (MepcExpected - ExpectedPCM) <= 16)) begin // if((ExpectedPCM != MepcExpected) & ((MepcExpected - ExpectedPCM) * (MepcExpected - ExpectedPCM) <= 16)) begin
RequestDelayedMIP = 1; // RequestDelayedMIP = 1;
$display("%tns: Requesting Delayed MIP. Current MEPC value is %x",$time,MepcExpected); // $display("%tns: Requesting Delayed MIP. Current MEPC value is %x",$time,MepcExpected);
end else begin // end else begin
$display("%tns: Updating MIP to %x",$time,NextMIPexpected); // $display("%tns: Updating MIP to %x",$time,NextMIPexpected);
MIPexpected = NextMIPexpected; // MIPexpected = NextMIPexpected;
force dut.hart.priv.csr.genblk1.csri.MIP_REGW = MIPexpected; // force dut.hart.priv.csr.genblk1.csri.MIP_REGW = MIPexpected;
end // end
end end
if(RequestDelayedMIP) begin if(RequestDelayedMIP) begin
$display("%tns: Executing Delayed MIP. Current MEPC value is %x",$time,dut.hart.priv.csr.genblk1.csrm.MEPC_REGW); $display("%tns: Executing Delayed MIP. Current MEPC value is %x",$time,dut.hart.priv.csr.genblk1.csrm.MEPC_REGW);