mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-09-07 03:43:19 +02:00
Stephen Williams
cea237b407
By adding ivtest to the iverilog source tree, it is easier to keep the regression test synchronized with the source that is being tested. This should be especially helpful for PRs that add a new feature, and have a matching ivtest PR with the regression test for that feature.
90 lines
2.0 KiB
Verilog
90 lines
2.0 KiB
Verilog
module test();
|
|
|
|
wire a;
|
|
|
|
tri0 b;
|
|
tri1 c;
|
|
|
|
tri1 d;
|
|
tri0 e;
|
|
|
|
wire f;
|
|
wire g;
|
|
|
|
wire h;
|
|
wire i;
|
|
|
|
tri1 j;
|
|
tri0 k;
|
|
|
|
wire l;
|
|
|
|
tri0 m;
|
|
tri1 n;
|
|
|
|
assign d = 1'b0;
|
|
assign e = 1'b1;
|
|
|
|
assign f = 1'b0;
|
|
assign f = 1'b1;
|
|
|
|
assign g = 1'b1;
|
|
assign g = 1'b0;
|
|
|
|
assign (strong1,strong0) h = 1'b0;
|
|
assign ( weak1, weak0) h = 1'b1;
|
|
|
|
assign ( weak1, weak0) i = 1'b0;
|
|
assign (strong1,strong0) i = 1'b1;
|
|
|
|
assign (pull1,pull0) j = 1'b0;
|
|
assign (pull1,pull0) k = 1'b1;
|
|
|
|
wire [1:0] A = {1'b1, a};
|
|
wire [1:0] B = {1'b1, b};
|
|
wire [1:0] C = {1'b1, c};
|
|
wire [1:0] D = {1'b1, d};
|
|
wire [1:0] E = {1'b1, e};
|
|
wire [1:0] F = {1'b1, f};
|
|
wire [1:0] G = {1'b1, g};
|
|
wire [1:0] H = {1'b1, h};
|
|
wire [1:0] I = {1'b1, i};
|
|
wire [1:0] J = {1'b1, j};
|
|
wire [1:0] K = {1'b1, k};
|
|
wire [1:0] L = {1'b1, l};
|
|
wire [1:0] M = {1'b1, m};
|
|
wire [1:0] N = {1'b1, n};
|
|
|
|
reg failed;
|
|
|
|
initial begin
|
|
failed = 0; #1;
|
|
|
|
$display("A = %b, expect 1z", A); if (A !== 2'b1z) failed = 1;
|
|
$display("B = %b, expect 10", B); if (B !== 2'b10) failed = 1;
|
|
$display("C = %b, expect 11", C); if (C !== 2'b11) failed = 1;
|
|
$display("D = %b, expect 10", D); if (D !== 2'b10) failed = 1;
|
|
$display("E = %b, expect 11", E); if (E !== 2'b11) failed = 1;
|
|
$display("F = %b, expect 1x", F); if (F !== 2'b1x) failed = 1;
|
|
$display("G = %b, expect 1x", G); if (G !== 2'b1x) failed = 1;
|
|
$display("H = %b, expect 10", H); if (H !== 2'b10) failed = 1;
|
|
$display("I = %b, expect 11", I); if (I !== 2'b11) failed = 1;
|
|
$display("J = %b, expect 1x", J); if (J !== 2'b1x) failed = 1;
|
|
$display("K = %b, expect 1x", K); if (K !== 2'b1x) failed = 1;
|
|
force l = 1'b0; #1;
|
|
$display("L = %b, expect 10", L); if (L !== 2'b10) failed = 1;
|
|
force l = 1'b1; #1;
|
|
$display("L = %b, expect 11", L); if (L !== 2'b11) failed = 1;
|
|
force m = 1'b1; #1;
|
|
$display("M = %b, expect 11", M); if (M !== 2'b11) failed = 1;
|
|
force n = 1'b0; #1;
|
|
$display("N = %b, expect 10", N); if (N !== 2'b10) failed = 1;
|
|
|
|
if (failed)
|
|
$display("FAILED");
|
|
else
|
|
$display("PASSED");
|
|
end
|
|
|
|
endmodule
|