Subversion Repositories pid_controller

/*Booth Encoder

Author: Zhu Xu

Email: m99a1@yahoo.cn

*/

module booth_radix4(

input   [2:0]codes,

output  zero,

output  double,

output  negation

);

wire    A;

assign  A=codes[2];

wire    B;

assign  B=codes[1];

wire    C;

assign  C=codes[0];

wire    nB,nC,nA;

assign  nB=~B;

assign  nC=~C;

assign  nA=~A;

wire    BC;

assign  BC=B&C;

wire    nBnC;

assign  nBnC=nB&nC;

wire    nBanC;

assign  nBanC=nB|nC;

assign  double=(nBnC&A)|(BC&nA);

assign  negation=A&nBanC;

assign  zero=(A&BC)|(nA&nBnC);

endmodule