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Add PCW checking

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for now, doesn't check InstrW because it fails on compressed instructions
This commit is contained in:
Noah Boorstin 2021-02-01 23:57:06 +00:00
parent 1a3963bed0
commit 71f5bb0ce8
1 changed files with 37 additions and 2 deletions
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37
wally-pipelined/testbench/testbench-busybear.sv
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@ -54,6 +54,15 @@ module testbench_busybear();
end
end
integer data_file_PCW, scan_file_PCW;
initial begin
data_file_PCW = $fopen("../busybear-testgen/parsedPC.txt", "r");
if (data_file_PCW == 0) begin
$display("file couldn't be opened");
$stop;
end
end
// read register trace file
integer data_file_rf, scan_file_rf;
initial begin
@ -155,6 +164,32 @@ module testbench_busybear();
end
logic [63:0] lastInstrF, lastPC, lastPC2;
string PCtextW, PCtext2W;
logic [31:0] InstrWExpected;
logic [63:0] PCWExpected;
always @(dut.ifu.PCW or dut.ieu.InstrValidW) begin
if(dut.ieu.InstrValidW && dut.ifu.PCW != 0) begin
if($feof(data_file_PCW)) begin
$display("no more PC data to read");
$stop;
end
scan_file_PCW = $fscanf(data_file_PCW, "%s\n", PCtextW);
if (PCtextW != "ret") begin
scan_file_PC = $fscanf(data_file_PCW, "%s\n", PCtext2W);
PCtextW = {PCtextW, " ", PCtext2W};
end
scan_file_PCW = $fscanf(data_file_PCW, "%x\n", InstrWExpected);
// then expected PC value
scan_file_PCW = $fscanf(data_file_PCW, "%x\n", PCWExpected);
if(dut.ifu.PCW != PCWExpected) begin
$display("%t ps, instr %0d: PCW does not equal PCW expected: %x, %x", $time, instrs, dut.ifu.PCW, PCWExpected);
end
//if(it.InstrW != InstrWExpected) begin
// $display("%t ps, instr %0d: InstrW does not equal InstrW expected: %x, %x", $time, instrs, it.InstrW, InstrWExpected);
//end
end
end
string PCtext, PCtext2;
integer instrs;
initial begin
@ -182,7 +217,7 @@ module testbench_busybear();
scan_file_PC = $fscanf(data_file_PC, "%x\n", InstrF);
if(InstrF[6:0] == 7'b1010011) begin // for now, NOP out any float instrs
InstrF = 32'b0010011;
$display("warning: NOPing out %s at PC=%0d", PCtext, instrs);
$display("warning: NOPing out %s at PC=%0x", PCtext, PCF);
end
// then expected PC value
scan_file_PC = $fscanf(data_file_PC, "%x\n", pcExpected);