bin2bcd.v
module bin2bcd(input [7:0] A, output [9:0] BCD); wire [3:0] c1,c2,c3,c4,c5,c6,c7; wire [3:0] d1,d2,d3,d4,d5,d6,d7; assign d1 = {1'b0,A[7:5]}; assign d2 = {c1[2:0],A[4]}; assign d3 = {c2[2:0],A[3]}; assign d4 = {c3[2:0],A[2]}; assign d5 = {c4[2:0],A[1]}; assign d6 = {1'b0,c1[3],c2[3],c3[3]}; assign d7 = {c6[2:0],c4[3]}; add3 m1(d1,c1); add3 m2(d2,c2); add3 m3(d3,c3); add3 m4(d4,c4); add3 m5(d5,c5); add3 m6(d6,c6); add3 m7(d7,c7); assign BCD[3:0] = {c5[2:0],A[0]}; assign BCD[7:4] = {c7[2:0],c5[3]}; assign BCD[9:8] = {c6[3],c7[3]}; endmodule
add3.v
module add3(in,out); input [3:0] in; output [3:0] out; reg [3:0] out; always @ (in) case (in) 4'b0000: out <= 4'b0000; 4'b0001: out <= 4'b0001; 4'b0010: out <= 4'b0010; 4'b0011: out <= 4'b0011; 4'b0100: out <= 4'b0100; 4'b0101: out <= 4'b1000; 4'b0110: out <= 4'b1001; 4'b0111: out <= 4'b1010; 4'b1000: out <= 4'b1011; 4'b1001: out <= 4'b1100; default: out <= 4'b0000; endcase endmodule
fit.summary
Fitter Status : Successful - Mon Oct 17 21:14:36 2011 Quartus II Version : 9.0 Build 235 06/17/2009 SP 2 SJ Web Edition Revision Name : bin2bcd Top-level Entity Name : bin2bcd Family : Cyclone II Device : EP2C35F672C6 Timing Models : Final Total logic elements : 33 / 33,216 ( < 1 % ) Total combinational functions : 33 / 33,216 ( < 1 % ) Dedicated logic registers : 0 / 33,216 ( 0 % ) Total registers : 0 Total pins : 18 / 475 ( 4 % ) Total virtual pins : 0 Total memory bits : 0 / 483,840 ( 0 % ) Embedded Multiplier 9-bit elements : 0 / 70 ( 0 % ) Total PLLs : 0 / 4 ( 0 % )
tan.summary
-------------------------------------------------------------------------------------- Timing Analyzer Summary -------------------------------------------------------------------------------------- Type : Worst-case tpd Slack : N/A Required Time : None Actual Time : 15.007 ns From : A[5] To : BCD[1] From Clock : -- To Clock : -- Failed Paths : 0 Type : Total number of failed paths Slack : Required Time : Actual Time : From : To : From Clock : To Clock : Failed Paths : 0 --------------------------------------------------------------------------------------
Maintained by John Loomis, last updated Mon Oct 17 21:21:44 2011