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// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2006 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
module t (/*AUTOARG*/
// Inputs
clk
);
// verilator lint_off MULTIDRIVEN
wire [31:0] outb0c0;
wire [31:0] outb0c1;
wire [31:0] outb1c0;
wire [31:0] outb1c1;
reg [7:0] lclmem [7:0];
ma ma0 (.outb0c0(outb0c0), .outb0c1(outb0c1),
.outb1c0(outb1c0), .outb1c1(outb1c1)
);
global_mod #(32'hf00d) global_cell ();
global_mod #(32'hf22d) global_cell2 ();
input clk;
integer cyc=1;
always @ (posedge clk) begin
cyc <= cyc + 1;
`ifdef TEST_VERBOSE
$write("[%0t] cyc%0d: %0x %0x %0x %0x\n", $time, cyc, outb0c0, outb0c1, outb1c0, outb1c1);
`endif
if (cyc==2) begin
if (global_cell.globali != 32'hf00d) $stop;
if (global_cell2.globali != 32'hf22d) $stop;
if ($root.t.global_cell.globali != 32'hf00d) $stop;
if ($root.t.global_cell2.globali != 32'hf22d) $stop;
if (outb0c0 != 32'h00) $stop;
if (outb0c1 != 32'h01) $stop;
if (outb1c0 != 32'h10) $stop;
if (outb1c1 != 32'h11) $stop;
end
if (cyc==3) begin
// Can we scope down and read and write vars?
ma0.mb0.mc0.out <= ma0.mb0.mc0.out + 32'h100;
ma0.mb0.mc1.out <= ma0.mb0.mc1.out + 32'h100;
ma0.mb1.mc0.out <= ma0.mb1.mc0.out + 32'h100;
ma0.mb1.mc1.out <= ma0.mb1.mc1.out + 32'h100;
end
if (cyc==4) begin
// Can we do dotted's inside array sels?
ma0.rmtmem[ma0.mb0.mc0.out[2:0]] = 8'h12;
lclmem[ma0.mb0.mc0.out[2:0]] = 8'h24;
if (outb0c0 != 32'h100) $stop;
if (outb0c1 != 32'h101) $stop;
if (outb1c0 != 32'h110) $stop;
if (outb1c1 != 32'h111) $stop;
end
if (cyc==5) begin
if (ma0.rmtmem[ma0.mb0.mc0.out[2:0]] != 8'h12) $stop;
if (lclmem[ma0.mb0.mc0.out[2:0]] != 8'h24) $stop;
if (outb0c0 != 32'h1100) $stop;
if (outb0c1 != 32'h2101) $stop;
if (outb1c0 != 32'h2110) $stop;
if (outb1c1 != 32'h3111) $stop;
end
if (cyc==6) begin
if (outb0c0 != 32'h31100) $stop;
if (outb0c1 != 32'h02101) $stop;
if (outb1c0 != 32'h42110) $stop;
if (outb1c1 != 32'h03111) $stop;
end
if (cyc==9) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
endmodule
`ifdef USE_INLINE_MID
`define INLINE_MODULE /*verilator inline_module*/
`define INLINE_MID_MODULE /*verilator no_inline_module*/
`else
`ifdef USE_INLINE
`define INLINE_MODULE /*verilator inline_module*/
`define INLINE_MID_MODULE /*verilator inline_module*/
`else
`define INLINE_MODULE /*verilator public_module*/
`define INLINE_MID_MODULE /*verilator public_module*/
`endif
`endif
module global_mod;
`INLINE_MODULE
parameter INITVAL = 0;
integer globali;
initial globali = INITVAL;
endmodule
module ma (
output wire [31:0] outb0c0,
output wire [31:0] outb0c1,
output wire [31:0] outb1c0,
output wire [31:0] outb1c1
);
`INLINE_MODULE
reg [7:0] rmtmem [7:0];
mb #(0) mb0 (.outc0(outb0c0), .outc1(outb0c1));
mb #(1) mb1 (.outc0(outb1c0), .outc1(outb1c1));
endmodule
module mb (
output wire [31:0] outc0,
output wire [31:0] outc1
);
`INLINE_MID_MODULE
parameter P2 = 0;
mc #(P2,0) mc0 (.out(outc0));
mc #(P2,1) mc1 (.out(outc1));
global_mod #(32'hf33d) global_cell2 ();
wire reach_up_clk = t.clk;
always @(reach_up_clk) begin
if (P2==0) begin // Only for mb0
if (outc0 !== t.ma0.mb0.mc0.out) $stop; // Top module name and lower instances
if (outc0 !== ma0.mb0.mc0.out) $stop; // Upper module name and lower instances
if (outc0 !== ma .mb0.mc0.out) $stop; // Upper module name and lower instances
if (outc0 !== mb.mc0.out) $stop; // This module name and lower instances
if (outc0 !== mb0.mc0.out) $stop; // Upper instance name and lower instances
if (outc0 !== mc0.out) $stop; // Lower instances
if (outc1 !== t.ma0.mb0.mc1.out) $stop; // Top module name and lower instances
if (outc1 !== ma0.mb0.mc1.out) $stop; // Upper module name and lower instances
if (outc1 !== ma .mb0.mc1.out) $stop; // Upper module name and lower instances
if (outc1 !== mb.mc1.out) $stop; // This module name and lower instances
if (outc1 !== mb0.mc1.out) $stop; // Upper instance name and lower instances
if (outc1 !== mc1.out) $stop; // Lower instances
end
end
endmodule
module mc (output reg [31:0] out);
`INLINE_MODULE
parameter P2 = 0;
parameter P3 = 0;
initial begin
out = {24'h0,P2[3:0],P3[3:0]};
//$write("%m P2=%0x p3=%0x out=%x\n",P2, P3, out);
end
// Can we look from the top module name down?
wire [31:0] reach_up_cyc = t.cyc;
always @ (posedge t.clk) begin
//$write("[%0t] %m: Got reachup, cyc=%0d\n", $time, reach_up_cyc);
if (reach_up_cyc==2) begin
if (global_cell.globali != 32'hf00d) $stop;
if (global_cell2.globali != 32'hf33d) $stop;
end
if (reach_up_cyc==4) begin
out[15:12] <= {P2[3:0]+P3[3:0]+4'd1};
end
if (reach_up_cyc==5) begin
// Can we set another instance?
if (P3==1) begin // Without this, there are two possible correct answers...
mc0.out[19:16] <= {mc0.out[19:16]+P2[3:0]+P3[3:0]+4'd2};
$display("%m Set %x->%x %x %x %x %x",mc0.out, {mc0.out[19:16]+P2[3:0]+P3[3:0]+4'd2}, mc0.out[19:16],P2[3:0],P3[3:0],4'd2);
end
end
end
endmodule
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