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authorRuben Undheim <ruben.undheim@gmail.com>2019-10-18 19:56:51 +0000
committerRuben Undheim <ruben.undheim@gmail.com>2019-10-18 19:56:51 +0000
commit1f6bb85359149a016811e7e7fef980c3d45211e7 (patch)
tree749672f9a104cbfb25bb02acad6cb731724b9d56 /tests/sat/counters-repeat.v
parentff5734b20220e6fb4a3913cf5279ed94bb5156ea (diff)
New upstream version 0.9
Diffstat (limited to 'tests/sat/counters-repeat.v')
-rw-r--r--tests/sat/counters-repeat.v38
1 files changed, 38 insertions, 0 deletions
diff --git a/tests/sat/counters-repeat.v b/tests/sat/counters-repeat.v
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+// coverage for repeat loops outside of constant functions
+
+module counter1(clk, rst, ping);
+ input clk, rst;
+ output ping;
+ reg [31:0] count;
+
+ always @(posedge clk) begin
+ if (rst)
+ count <= 0;
+ else
+ count <= count + 1;
+ end
+
+ assign ping = &count;
+endmodule
+
+module counter2(clk, rst, ping);
+ input clk, rst;
+ output ping;
+ reg [31:0] count;
+
+ integer i;
+ reg carry;
+
+ always @(posedge clk) begin
+ carry = 1;
+ i = 0;
+ repeat (32) begin
+ count[i] <= !rst & (count[i] ^ carry);
+ carry = count[i] & carry;
+ i = i+1;
+ end
+ end
+
+ assign ping = &count;
+endmodule
+