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authorEddie Hung <eddie@fpgeh.com>2019-08-20 11:57:52 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-20 11:57:52 -0700
commitd9fe4cccbf3cc03fa57b177fd13c6e900a2134f7 (patch)
treeaceb37b755f6b112e754bbdd50f0a4a6a6ee111d /tests/opt/opt_share_diff_port_widths.v
parent297a9802122817e143b1e4b87fd0d4e357606a72 (diff)
parent3f4886e7a3ff14578b9c6d614efd360478e5886e (diff)
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Merge remote-tracking branch 'origin/master' into eddie/synth_xilinx
Diffstat (limited to 'tests/opt/opt_share_diff_port_widths.v')
-rw-r--r--tests/opt/opt_share_diff_port_widths.v21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/opt/opt_share_diff_port_widths.v b/tests/opt/opt_share_diff_port_widths.v
new file mode 100644
index 000000000..1a37c80a6
--- /dev/null
+++ b/tests/opt/opt_share_diff_port_widths.v
@@ -0,0 +1,21 @@
+module opt_share_test(
+ input [15:0] a,
+ input [15:0] b,
+ input [15:0] c,
+ input [1:0] sel,
+ output reg [15:0] res
+ );
+
+ wire [15:0] add0_res = a+b;
+ wire [15:0] add1_res = a+c;
+
+ always @* begin
+ case(sel)
+ 0: res = add0_res[10:0];
+ 1: res = add1_res[10:0];
+ 2: res = a - b;
+ default: res = 32'bx;
+ endcase
+ end
+
+endmodule