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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*/
// Inputs
clk
);
input clk;
integer cyc; initial cyc=1;
reg [63:0] rf;
reg [63:0] rf2;
reg [63:0] biu;
reg okidoki;
always @* begin
rf[63:32] = biu[63:32] & {32{okidoki}};
rf[31:0] = {32{okidoki}};
rf2 = rf;
rf2[31:0] = ~{32{okidoki}};
end
reg [31:0] src1, src0, sr, mask;
wire [31:0] dualasr
= ((| src1[31:4])
? {{16{src0[31]}}, {16{src0[15]}}}
: ( ( sr & {2{mask[31:16]}})
| ( {{16{src0[31]}}, {16{src0[15]}}}
& {2{~mask[31:16]}})));
wire [31:0] sl_mask
= (32'hffffffff << src1[4:0]);
wire [31:0] sr_mask
= {sl_mask[0], sl_mask[1],
sl_mask[2], sl_mask[3], sl_mask[4],
sl_mask[5], sl_mask[6], sl_mask[7],
sl_mask[8], sl_mask[9],
sl_mask[10], sl_mask[11],
sl_mask[12], sl_mask[13], sl_mask[14],
sl_mask[15], sl_mask[16],
sl_mask[17], sl_mask[18], sl_mask[19],
sl_mask[20], sl_mask[21],
sl_mask[22], sl_mask[23], sl_mask[24],
sl_mask[25], sl_mask[26],
sl_mask[27], sl_mask[28], sl_mask[29],
sl_mask[30], sl_mask[31]};
always @ (posedge clk) begin
if (cyc!=0) begin
cyc <= cyc + 1;
`ifdef TEST_VERBOSE
$write("%x %x %x %x %x\n", rf, rf2, dualasr, sl_mask, sr_mask);
`endif
if (cyc==1) begin
biu <= 64'h12451282_abadee00;
okidoki <= 1'b0;
src1 <= 32'h00000001;
src0 <= 32'h9a4f1235;
sr <= 32'h0f19f567;
mask <= 32'h7af07ab4;
end
if (cyc==2) begin
biu <= 64'h12453382_abad8801;
okidoki <= 1'b1;
if (rf != 64'h0) $stop;
if (rf2 != 64'h00000000ffffffff) $stop;
src1 <= 32'h0010000f;
src0 <= 32'h028aa336;
sr <= 32'h42ad0377;
mask <= 32'h1ab3b906;
if (dualasr != 32'h8f1f7060) $stop;
if (sl_mask != 32'hfffffffe) $stop;
if (sr_mask != 32'h7fffffff) $stop;
end
if (cyc==3) begin
biu <= 64'h12422382_77ad8802;
okidoki <= 1'b1;
if (rf != 64'h12453382ffffffff) $stop;
if (rf2 != 64'h1245338200000000) $stop;
src1 <= 32'h0000000f;
src0 <= 32'h5c158f71;
sr <= 32'h7076c40a;
mask <= 32'h33eb3d44;
if (dualasr != 32'h0000ffff) $stop;
if (sl_mask != 32'hffff8000) $stop;
if (sr_mask != 32'h0001ffff) $stop;
end
if (cyc==4) begin
if (rf != 64'h12422382ffffffff) $stop;
if (rf2 != 64'h1242238200000000) $stop;
if (dualasr != 32'h3062cc1e) $stop;
if (sl_mask != 32'hffff8000) $stop;
if (sr_mask != 32'h0001ffff) $stop;
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
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