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79 lines
1.7 KiB
Systemverilog
79 lines
1.7 KiB
Systemverilog
// DESCRIPTION: Verilator: Verilog Test module
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//
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// This file ONLY is placed into the Public Domain, for any use,
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// without warranty, 2021 by Wilson Snyder.
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// SPDX-License-Identifier: CC0-1.0
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`define stop $stop
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`define checkh(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got='h%x exp='h%x\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0)
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interface intf ();
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integer index;
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endinterface
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module t
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(
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clk
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);
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input clk;
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intf ifa1_intf[2:1]();
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intf ifa2_intf[2:1]();
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intf ifb1_intf[1:2]();
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intf ifb2_intf[1:2]();
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int cyc;
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sub sub
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(
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.clk,
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.cyc,
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.alh(ifa1_intf),
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.ahl(ifa2_intf),
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.blh(ifb1_intf),
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.bhl(ifb2_intf)
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);
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always @(posedge clk) begin
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cyc <= cyc + 1;
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if (cyc == 1) begin
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ifa1_intf[1].index = 'h101;
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ifa1_intf[2].index = 'h102;
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ifa2_intf[1].index = 'h201;
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ifa2_intf[2].index = 'h202;
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ifb1_intf[1].index = 'h301;
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ifb1_intf[2].index = 'h302;
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ifb2_intf[1].index = 'h401;
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ifb2_intf[2].index = 'h402;
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end
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end
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endmodule
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module sub
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(
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input logic clk,
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input int cyc,
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intf alh[1:2],
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intf ahl[2:1],
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intf blh[1:2],
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intf bhl[2:1]
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);
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always @(posedge clk) begin
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if (cyc == 5) begin
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`checkh(alh[1].index, 'h102);
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`checkh(alh[2].index, 'h101);
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`checkh(ahl[1].index, 'h201);
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`checkh(ahl[2].index, 'h202);
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`checkh(blh[1].index, 'h301);
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`checkh(blh[2].index, 'h302);
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`checkh(bhl[1].index, 'h402);
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`checkh(bhl[2].index, 'h401);
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$write("*-* All Finished *-*\n");
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$finish;
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end
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end
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endmodule
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