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busybear: only check pc when it actually changes

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This commit is contained in:
Noah Boorstin 2021-03-01 19:08:35 +00:00
parent 4833b36535
commit 965d48afe7
1 changed files with 69 additions and 65 deletions
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4
wally-pipelined/testbench/testbench-busybear.sv
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@ -335,8 +335,10 @@ module testbench_busybear();
end end
logic [31:0] InstrMask; logic [31:0] InstrMask;
logic forcedInstr; logic forcedInstr;
logic [63:0] lastPCF;
always @(dut.PCF or dut.hart.ifu.InstrF) begin always @(dut.PCF or dut.hart.ifu.InstrF) begin
if (~reset && dut.hart.ifu.InstrF !== {32{1'bx}}) begin if (~reset && dut.hart.ifu.InstrF !== {32{1'bx}}) begin
if (dut.PCF !== lastPCF) begin
lastCheckInstrF = CheckInstrF; lastCheckInstrF = CheckInstrF;
lastPC <= dut.PCF; lastPC <= dut.PCF;
lastPC2 <= lastPC; lastPC2 <= lastPC;
@ -412,6 +414,8 @@ module testbench_busybear();
end end
end end
end end
lastPCF = dut.PCF;
end
end end
// Track names of instructions // Track names of instructions