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Added in David's testbench check for traps without a trap handler. Generates an error message and stops simulation.

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Rose Thompson 2025-05-04 12:21:23 -05:00
parent 29f86bb5cb
commit bb0c663707
1 changed files with 6 additions and 4 deletions
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10
testbench/testbench.sv
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@ -716,13 +716,15 @@ module testbench;
always @(posedge clk) begin
// if (reset) PrevPCZero <= 0;
// else if (dut.core.InstrValidM) PrevPCZero <= (functionName.PCM == 0 & dut.core.ifu.InstrM == 0);
TestComplete <= ((InstrM == 32'h6f) & dut.core.InstrValidM ) |
((dut.core.lsu.IEUAdrM == ProgramAddrLabelArray["tohost"] & dut.core.lsu.IEUAdrM != 0) & InstrMName == "SW"); // |
// (functionName.PCM == 0 & dut.core.ifu.InstrM == 0 & dut.core.InstrValidM & PrevPCZero));
// if (functionName.PCM == 0 & dut.core.ifu.InstrM == 0 & dut.core.InstrValidM & PrevPCZero)
// $error("Program fetched illegal instruction 0x00000000 from address 0x00000000 twice in a row. Usually due to fault with no fault handler.");
if (reset) PrevPCZero <= 0;
else if (dut.core.InstrValidM) PrevPCZero <= (dut.core.PCM == 0 & dut.core.ifu.InstrM == 0);
if (dut.core.PCM == 0 & dut.core.ifu.InstrM == 0 & dut.core.InstrValidM & PrevPCZero) begin
$error("Program fetched illegal instruction 0x00000000 from address 0x00000000 twice in a row. Usually due to fault with no fault handler.");
$fatal(1);
end
end
DCacheFlushFSM #(P) DCacheFlushFSM(.clk, .start(DCacheFlushStart), .done(DCacheFlushDone));