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// DESCRIPTION: Verilator: Verilog Test module
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc=0;
reg [63:0] crc;
reg [63:0] sum;
// Take CRC data and apply to testblock inputs
wire [9:0] in = crc[9:0];
/*AUTOWIRE*/
Test test (/*AUTOINST*/
// Inputs
.clk (clk),
.in (in[9:0]));
// Aggregate outputs into a single result vector
wire [63:0] result = {64'h0};
// Test loop
always @ (posedge clk) begin
`ifdef TEST_VERBOSE
$write("[%0t] cyc==%0d crc=%x result=%x\n",$time, cyc, crc, result);
`endif
cyc <= cyc + 1;
crc <= {crc[62:0], crc[63]^crc[2]^crc[0]};
sum <= result ^ {sum[62:0],sum[63]^sum[2]^sum[0]};
if (cyc==0) begin
// Setup
crc <= 64'h5aef0c8d_d70a4497;
end
else if (cyc<10) begin
sum <= 64'h0;
end
else if (cyc<90) begin
end
else if (cyc==99) begin
$write("[%0t] cyc==%0d crc=%x sum=%x\n",$time, cyc, crc, sum);
if (crc !== 64'hc77bb9b3784ea091) $stop;
// What checksum will we end up with (above print should match)
`define EXPECTED_SUM 64'h0
if (sum !== `EXPECTED_SUM) $stop;
$write("*-* All Finished *-*\n");
$finish;
end
end
endmodule
module Test (/*AUTOARG*/
// Inputs
clk, in
);
input clk;
input [9:0] in;
reg a [9:0];
integer ai;
always @* begin
for (ai=0;ai<10;ai=ai+1) begin
a[ai]=in[ai];
end
end
reg [1:0] b [9:0];
integer j;
generate
genvar i;
for (i=0; i<2; i=i+1) begin
always @(posedge clk) begin
for (j=0; j<10; j=j+1) begin
if (a[j])
b[i][j] <= 1'b0;
else
b[i][j] <= 1'b1;
end
end
end
endgenerate
endmodule
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