module test ( a,b,d); input [4:0] a; input [20:0] b; output d; always @(a or b) begin if (a == 5'b00000) begin d = b[2:0] ; end else if (a == 5'b00001) begin d = b[5:3] ; end else if (a == 5'b00010) begin d = b[8:6] ; end else if (a == 5'b00011) begin d = b[11:9] ; end else if (a == 5'b00100) begin d = b[14:12] ; end else if (a == 5'b00101) begin d = b[17:15] ; end else if (a == 5'b00110) begin d = b[20:18] ; end else if (a == 5'b00111) begin d = b[2:0] ; end else if (a == 5'b01000) begin d = b[5:3] ; end else if (a == 5'b01001) begin d = b[8:6] ; end else if (a == 5'b01010) begin d = b[11:9] ; end else if (a == 5'b01011) begin d = b[14:12] ; end else if (a == 5'b01100) begin d = b[17:15] ; end else if (a == 5'b01101) begin d = b[20:18] ; end else if (a == 5'b01110) begin d = b[2:0] ; end else if (a == 5'b01111) begin d = b[5:3] ; end else if (a == 5'b10000) begin d = b[8:6] ; end else if (a == 5'b10001) begin d = b[11:9] ; end else if (a == 5'b10010) begin d = b[14:12] ; end else if (a == 5'b10011) begin d = b[17:15] ; end else if (a == 5'b10100) begin d = b[20:18] ; end else if (a == 5'b10101) begin d = b[2:0] ; end else if (a == 5'b10110) begin d = b[5:3] ; end else if (a == 5'b10111) begin d = b[8:6] ; end else if (a == 5'b11000) begin d = b[11:9] ; end else if (a == 5'b11001) begin d = b[14:12] ; end else if (a == 5'b11010) begin d = b[17:15] ; end else if (a == 5'b11011) begin d = b[20:18] ; end else if (a == 5'b11111) begin d = 3'b0; end else begin d = {3{1'b0}} ; end end endmodule [ [ ['module', 'test', '(', [['a'], ['b'], ['d']], ')', ';'], [ ['input', '[', '4', ':', '0', ']', 'a', ';'], ['input', '[', '20', ':', '0', ']', 'b', ';'], ['output', 'd', ';'], [ 'always', ['@', '(', [['a'], ['b']], ')'], [ 'begin', [ [ 'if', ['(', ['a'], '==', "5 'b 00000", ')'], [ 'begin', [[[['d'], '=', ['b', ['[', '2', '0', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00001", ')'], [ 'begin', [[[['d'], '=', ['b', ['[', '5', '3', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00010", ')'], [ 'begin', [[[['d'], '=', ['b', ['[', '8', '6', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00011", ')'], [ 'begin', [[[['d'], '=', ['b', ['[', '11', '9', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00100", ')'], [ 'begin', [[[['d'], '=', ['b', ['[', '14', '12', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00101", ')'], [ 'begin', [[[['d'], '=', ['b', ['[', '17', '15', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00110", ')'], [ 'begin', [ [ [['d'], '=', ['b', ['[', '20', '18', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 00111", ')'], [ 'begin', [ [ [['d'], '=', ['b', ['[', '2', '0', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01000", ')'], [ 'begin', [ [ [['d'], '=', ['b', ['[', '5', '3', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01001", ')'], [ 'begin', [ [ [['d'], '=', ['b', ['[', '8', '6', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01010", ')'], [ 'begin', [ [ [ ['d'], '=', ['b', ['[', '11', '9', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01011", ')'], [ 'begin', [ [ [ ['d'], '=', ['b', ['[', '14', '12', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01100", ')'], [ 'begin', [ [ [ ['d'], '=', ['b', ['[', '17', '15', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01101", ')'], [ 'begin', [ [ [ ['d'], '=', ['b', ['[', '20', '18', ']']]], ';']], 'end'], 'else', [ 'if', ['(', ['a'], '==', "5 'b 01110", ')'], [ 'begin', [ [ [ ['d'], '=', ['b', ['[', '2', '0', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 01111", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', ['[', '5', '3', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10000", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', ['[', '8', '6', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10001", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '11', '9', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10010", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '14', '12', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10011", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '17', '15', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10100", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '20', '18', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10101", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '2', '0', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10110", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '5', '3', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 10111", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '8', '6', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 11000", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '11', '9', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b 11001", ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '14', '12', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b " '11010', ')'], [ 'begin', [ [ [ ['d'], '=', [ 'b', [ '[', '17', '15', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b " '11011', ')'], [ 'begin', [ [ [ [ 'd'], '=', [ 'b', [ '[', '20', '18', ']']]], ';']], 'end'], 'else', [ 'if', [ '(', ['a'], '==', "5 'b " '11111', ')'], [ 'begin', [ [ [ [ 'd'], '=', '3 ' "'b " '0'], ';']], 'end'], 'else', [ 'begin', [ [ [ [ 'd'], '=', [ '{', '3', [ '{', '1 ' "'b " '0', '}'], '}']], ';']], 'end']]]]]]]]]]]]]]]]]]]]]]]]]]]]]]], 'end']]], 'endmodule']]