diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac/mac_12/mac_12.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_12/mac_12.v
new file mode 100644
index 000000000..ccbade6c0
--- /dev/null
+++ b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_12/mac_12.v
@@ -0,0 +1,22 @@
+//-------------------------------------------------------
+//  Functionality: A 12-bit multiply-acculumate circuit
+//  Author:        Xifan Tang
+//-------------------------------------------------------
+
+module mac_12(a, b, c, out);
+parameter DATA_WIDTH = 12;  /* declare a parameter. default required */
+input [DATA_WIDTH - 1 : 0] a, b, c;
+output [DATA_WIDTH - 1 : 0] out;
+
+assign out = a * b + c;
+
+endmodule
+
+
+
+
+
+
+
+
+
diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac/mac_16/mac_16.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_16/mac_16.v
new file mode 100644
index 000000000..3fc2270e5
--- /dev/null
+++ b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_16/mac_16.v
@@ -0,0 +1,22 @@
+//-------------------------------------------------------
+//  Functionality: A 16-bit multiply-acculumate circuit
+//  Author:        Xifan Tang
+//-------------------------------------------------------
+
+module mac_16(a, b, c, out);
+parameter DATA_WIDTH = 16;  /* declare a parameter. default required */
+input [DATA_WIDTH - 1 : 0] a, b, c;
+output [DATA_WIDTH - 1 : 0] out;
+
+assign out = a * b + c;
+
+endmodule
+
+
+
+
+
+
+
+
+
diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac_2/mac_2.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_2/mac_2.v
similarity index 100%
rename from openfpga_flow/benchmarks/micro_benchmark/mac_2/mac_2.v
rename to openfpga_flow/benchmarks/micro_benchmark/mac/mac_2/mac_2.v
diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac/mac_32/mac_32.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_32/mac_32.v
new file mode 100644
index 000000000..e22fd596c
--- /dev/null
+++ b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_32/mac_32.v
@@ -0,0 +1,22 @@
+//-------------------------------------------------------
+//  Functionality: A 32-bit multiply-acculumate circuit
+//  Author:        Xifan Tang
+//-------------------------------------------------------
+
+module mac_32(a, b, c, out);
+parameter DATA_WIDTH = 32;  /* declare a parameter. default required */
+input [DATA_WIDTH - 1 : 0] a, b, c;
+output [DATA_WIDTH - 1 : 0] out;
+
+assign out = a * b + c;
+
+endmodule
+
+
+
+
+
+
+
+
+
diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac_4/mac_4.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_4/mac_4.v
similarity index 100%
rename from openfpga_flow/benchmarks/micro_benchmark/mac_4/mac_4.v
rename to openfpga_flow/benchmarks/micro_benchmark/mac/mac_4/mac_4.v
diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac_6/mac_6.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_6/mac_6.v
similarity index 100%
rename from openfpga_flow/benchmarks/micro_benchmark/mac_6/mac_6.v
rename to openfpga_flow/benchmarks/micro_benchmark/mac/mac_6/mac_6.v
diff --git a/openfpga_flow/benchmarks/micro_benchmark/mac_8/mac_8.v b/openfpga_flow/benchmarks/micro_benchmark/mac/mac_8/mac_8.v
similarity index 100%
rename from openfpga_flow/benchmarks/micro_benchmark/mac_8/mac_8.v
rename to openfpga_flow/benchmarks/micro_benchmark/mac/mac_8/mac_8.v