统计结果
C = A + B
输入位宽1 |
输入位宽2 |
输出位宽 |
逻辑深度 |
cell count |
1024 |
1024 |
1024 |
32 |
11440 |
512 |
512 |
512 |
29 |
5444 |
256 |
256 |
256 |
27 |
2591 |
128 |
128 |
128 |
26 |
1217 |
64 |
64 |
64 |
21 |
600 |
32 |
32 |
32 |
24 |
265 |
16 |
16 |
16 |
19 |
22 |
8 |
8 |
8 |
10 |
9 |
4 |
4 |
4 |
5 |
12 |
备注
4bit + 4bit的dc映射,cell cout = 12
/ // Created by: Synopsys DC Expert(TM) in wire load mode // Version : L-2016.03-SP1 // Date : Wed Nov 17 10:39:36 2021 / module test ( clk, rst_n, in_data1, in_data2, out_data ); input [3:0] in_data1; input [3:0] in_data2; output [3:0] out_data; input clk, rst_n; wire n1, n2, n3, n4, n5, n6, n9, n10; OAI2BB1X1 U13 ( .A0N(in_data1[1]), .A1N(in_data2[1]), .B0(n6), .Y(n3) ); OAI211XL U14 ( .A0(in_data1[1]), .A1(in_data2[1]), .B0(in_data1[0]), .C0( in_data2[0]), .Y(n6) ); XOR2X1 U15 ( .A(n9), .B(n10), .Y(out_data[1]) ); NAND2X2 U16 ( .A(in_data1[0]), .B(in_data2[0]), .Y(n9) ); XNOR2X1 U17 ( .A(in_data2[1]), .B(in_data1[1]), .Y(n10) ); XOR2X1 U18 ( .A(in_data2[0]), .B(in_data1[0]), .Y(out_data[0]) ); XOR2X1 U19 ( .A(n3), .B(n5), .Y(out_data[2]) ); XOR2X1 U20 ( .A(in_data2[2]), .B(in_data1[2]), .Y(n5) ); XOR2X1 U21 ( .A(n1), .B(n2), .Y(out_data[3]) ); XOR2X1 U22 ( .A(in_data2[3]), .B(in_data1[3]), .Y(n2) ); AOI2BB1X2 U23 ( .A0N(n3), .A1N(in_data1[2]), .B0(n4), .Y(n1) ); AOI21X1 U24 ( .A0(in_data1[2]), .A1(n3), .B0(in_data2[2]), .Y(n4) ); endmodule
8bit + 8bit的dc映射,cell cout = 9:
module test_DW01_add_0 ( A, B, SUM ); input [7:0] A; input [7:0] B; output [7:0] SUM; wire n1; wire [7:2] carry; XOR3XL U1_7 ( .A(A[7]), .B(B[7]), .C(carry[7]), .Y(SUM[7]) ); ADDFX1 U1_6 ( .A(A[6]), .B(B[6]), .CI(carry[6]), .CO(carry[7]), .S(SUM[6]) ); ADDFX1 U1_5 ( .A(A[5]), .B(B[5]), .CI(carry[5]), .CO(carry[6]), .S(SUM[5]) ); ADDFX1 U1_4 ( .A(A[4]), .B(B[4]), .CI(carry[4]), .CO(carry[5]), .S(SUM[4]) ); ADDFX1 U1_3 ( .A(A[3]), .B(B[3]), .CI(carry[3]), .CO(carry[4]), .S(SUM[3]) ); ADDFX1 U1_2 ( .A(A[2]), .B(B[2]), .CI(carry[2]), .CO(carry[3]), .S(SUM[2]) ); ADDFX1 U1_1 ( .A(A[1]), .B(B[1]), .CI(n1), .CO(carry[2]), .S(SUM[1]) ); AND2X2 U1 ( .A(B[0]), .B(A[0]), .Y(n1) ); XOR2X1 U2 ( .A(B[0]), .B(A[0]), .Y(SUM[0]) ); endmodule module test ( clk, rst_n, in_data1, in_data2, out_data ); input [7:0] in_data1; input [7:0] in_data2; output [7:0] out_data; input clk, rst_n; test_DW01_add_0 add_13 ( .A(in_data1), .B(in_data2), .SUM(out_data) ); endmodule