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// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2004 by Wilson Snyder.
module t (/*AUTOARG*/
// Outputs
ign,
// Inputs
clk
);
input clk;
output [31:0] ign;
reg [31:0] right;
reg [31:0] left;
reg [63:0] qright;
reg [63:0] qleft;
reg [31:0] amt;
assign ign = {31'h0, clk} >>> 4'bx; // bug760
always @* begin
right = 32'h819b018a >> amt;
left = 32'h819b018a << amt;
qright = 64'hf784bf8f_12734089 >> amt;
qleft = 64'hf784bf8f_12734089 >> amt;
end
integer cyc; initial cyc=1;
always @ (posedge clk) begin
if (cyc!=0) begin
cyc <= cyc + 1;
`ifdef TEST_VERBOSE
$write("%d %x %x %x %x\n", cyc, left, right, qleft, qright);
`endif
if (cyc==1) begin
amt <= 32'd0;
if (5'b10110>>2 != 5'b00101) $stop;
if (5'b10110>>>2 != 5'b00101) $stop; // Note it cares about sign-ness
if (5'b10110<<2 != 5'b11000) $stop;
if (5'b10110<<<2 != 5'b11000) $stop;
if (5'sb10110>>2 != 5'sb00101) $stop;
if (5'sb10110>>>2 != 5'sb11101) $stop;
if (5'sb10110<<2 != 5'sb11000) $stop;
if (5'sb10110<<<2 != 5'sb11000) $stop;
// Allow >64 bit shifts if the shift amount is a constant
if ((64'sh458c2de282e30f8b >> 68'sh4) !== 64'sh0458c2de282e30f8) $stop;
end
if (cyc==2) begin
amt <= 32'd28;
if (left != 32'h819b018a) $stop;
if (right != 32'h819b018a) $stop;
if (qleft != 64'hf784bf8f_12734089) $stop;
if (qright != 64'hf784bf8f_12734089) $stop;
end
if (cyc==3) begin
amt <= 32'd31;
if (left != 32'ha0000000) $stop;
if (right != 32'h8) $stop;
if (qleft != 64'h0000000f784bf8f1) $stop;
if (qright != 64'h0000000f784bf8f1) $stop;
end
if (cyc==4) begin
amt <= 32'd32;
if (left != 32'h0) $stop;
if (right != 32'h1) $stop;
if (qleft != 64'h00000001ef097f1e) $stop;
if (qright != 64'h00000001ef097f1e) $stop;
end
if (cyc==5) begin
amt <= 32'd33;
if (left != 32'h0) $stop;
if (right != 32'h0) $stop;
if (qleft != 64'h00000000f784bf8f) $stop;
if (qright != 64'h00000000f784bf8f) $stop;
end
if (cyc==6) begin
amt <= 32'd64;
if (left != 32'h0) $stop;
if (right != 32'h0) $stop;
if (qleft != 64'h000000007bc25fc7) $stop;
if (qright != 64'h000000007bc25fc7) $stop;
end
if (cyc==7) begin
amt <= 32'd128;
if (left != 32'h0) $stop;
if (right != 32'h0) $stop;
if (qleft != 64'h0) $stop;
if (qright != 64'h0) $stop;
end
if (cyc==8) begin
if (left != 32'h0) $stop;
if (right != 32'h0) $stop;
if (qleft != 64'h0) $stop;
if (qright != 64'h0) $stop;
end
if (cyc==9) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
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