QuartusII 12.1 BarrelShifter comparison

SHFTER.v

module SHFTER(clk,GPIO1,GPIO2,GPIO3);
  input clk;
	input [63:0] GPIO1;
	input [63:0] GPIO2;
	output [63:0] GPIO3;
	
	wire [63:0] indata;
	wire [63:0] val;
	wire [63:0] sftout;

	reg [63:0] source;
	reg [63:0] value;
	reg [63:0] result;

	
	assign indata=GPIO1;
	assign val=   GPIO2;

	assign GPIO3=result;

/* BEGIN combinational */
//	assign GPIO3=outdata;
//	  sll64 SLL(indata,val,outdata);
//	  sll32 SLL(indata,val,outdata);
//	  sll16 SLL(indata,val,outdata);
//	  sll8 SLL(indata,val,outdata);
//	  sll4 SLL(indata,val,outdata);
/* END combinational */

	sllp #(63) SLL(source,value,sftout);

//	  sll64lt SLL(source,value,sftout);
//	  sll48lt SLL(source,value,sftout);
//	  sll32lt SLL(source,value,sftout);
//	  sll24lt SLL(source,value,sftout);
//	  sll16lt SLL(source,value,sftout);
//	  sll8lt SLL(source,value,sftout);
//	  sll4lt SLL(source,value,sftout);

//	  sll64 SLL(source,value,sftout);
//	  sll48 SLL(source,value,sftout);
//	  sll32 SLL(source,value,sftout);
//	  sll24 SLL(source,value,sftout);
//	  sll16 SLL(source,value,sftout);
//	  sll8 SLL(source,value,sftout);
//	  sll4 SLL(source,value,sftout);

  always @(posedge clk) begin
    source<=indata;
    value<=val;
    result<=sftout;
  end


//	sll64(indata,val,outdata);
//	sll32(indata,val,outdata);
//	sll16(indata,val,outdata);
//	sll8(indata,val,outdata);
//	sll4(indata,val,outdata);
	
endmodule

sll16.v

module sll16(indata,val,outdata);

  input [15:0] indata;
	input [15:0] val;
	output [15:0] outdata;
	
	function [15:0] shifterL;
		input [15:0] in;
		input [15:0] sv;
		begin
			case (sv)
				16'b0000:	shifterL=in[15:0];
				16'b0001:	shifterL={in[15:1],1'b0};
				16'b0010:	shifterL={in[15:2],2'b00};
				16'b0011:	shifterL={in[15:3],3'b000};
				16'b0100:	shifterL={in[15:4],4'b0000};
				16'b0101:	shifterL={in[15:5],5'b00000};
				16'b0110:	shifterL={in[15:6],6'b000000};
				16'b0111:	shifterL={in[15:7],7'b0000000};
				16'b1000:	shifterL={in[15:8],8'b00000000};
				16'b1001:	shifterL={in[15:9],9'b000000000};
				16'b1010:	shifterL={in[15:10],10'b0000000000};
				16'b1011:	shifterL={in[15:11],11'b00000000000};
				16'b1100:	shifterL={in[15:12],12'b000000000000};
				16'b1101:	shifterL={in[15:13],13'b0000000000000};
				16'b1110:	shifterL={in[15:14],14'b00000000000000};
				16'b1111:	shifterL={in[15:15],15'b000000000000000};
				default :	shifterL=16'b0000000000000000;
			endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll16lt.v

module sll16lt(indata,val,outdata);

  input [15:0] indata;
	input [15:0] val;
	output [15:0] outdata;
		
	assign outdata=indata<<val;
endmodule

sll24.v

module sll24(indata,val,outdata);

  input [23:0] indata;
	input [23:0] val;
	output [23:0] outdata;
	
	function [23:0] shifterL;
		input [23:0] in;
		input [23:0] sv;
		begin
			case (sv)
				24'b000000:	shifterL=in[23:0];
				24'b000001:	shifterL={in[23:1],1'b0};
				24'b000010:	shifterL={in[23:2],2'b00};
				24'b000011:	shifterL={in[23:3],3'b000};
				24'b000100:	shifterL={in[23:4],4'b0000};
				24'b000101:	shifterL={in[23:5],5'b00000};
				24'b000110:	shifterL={in[23:6],6'b000000};
				24'b000111:	shifterL={in[23:7],7'b0000000};
				24'b001000:	shifterL={in[23:8],8'b00000000};
				24'b001001:	shifterL={in[23:9],9'b000000000};
				24'b001010:	shifterL={in[23:10],10'b0000000000};
				24'b001011:	shifterL={in[23:11],11'b00000000000};
				24'b001100:	shifterL={in[23:12],12'b000000000000};
				24'b001101:	shifterL={in[23:13],13'b0000000000000};
				24'b001110:	shifterL={in[23:14],14'b00000000000000};
				24'b001111:	shifterL={in[23:15],15'b000000000000000};
				24'b010000:	shifterL={in[23:16],16'b0000000000000000};
				24'b010001:	shifterL={in[23:17],17'b00000000000000000};
				24'b010010:	shifterL={in[23:18],18'b000000000000000000};
				24'b010011:	shifterL={in[23:19],19'b0000000000000000000};
				24'b010100:	shifterL={in[23:20],20'b00000000000000000000};
				24'b010101:	shifterL={in[23:21],21'b000000000000000000000};
				24'b010110:	shifterL={in[23:22],22'b0000000000000000000000};
				24'b010111:	shifterL={in[23:23],23'b00000000000000000000000};
				default  :	shifterL=           23'b000000000000000000000000000000000000000000000000;
				endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll24lt.v

module sll24lt(indata,val,outdata);

  input [23:0] indata;
	input [23:0] val;
	output [23:0] outdata;
		
	assign outdata=indata<<val;
endmodule

sll32.v

module sll32(indata,val,outdata);

  input [31:0] indata;
	input [31:0] val;
	output [31:0] outdata;
	
	function [31:0] shifterL;
		input [31:0] in;
		input [31:0] sv;
		begin
			case (sv)
				32'b00000:	shifterL=in[31:0];
				32'b00001:	shifterL={in[31:1],1'b0};
				32'b00010:	shifterL={in[31:2],2'b00};
				32'b00011:	shifterL={in[31:3],3'b000};
				32'b00100:	shifterL={in[31:4],4'b0000};
				32'b00101:	shifterL={in[31:5],5'b00000};
				32'b00110:	shifterL={in[31:6],6'b000000};
				32'b00111:	shifterL={in[31:7],7'b0000000};
				32'b01000:	shifterL={in[31:8],8'b00000000};
				32'b01001:	shifterL={in[31:9],9'b000000000};
				32'b01010:	shifterL={in[31:10],10'b0000000000};
				32'b01011:	shifterL={in[31:11],11'b00000000000};
				32'b01100:	shifterL={in[31:12],12'b000000000000};
				32'b01101:	shifterL={in[31:13],13'b0000000000000};
				32'b01110:	shifterL={in[31:14],14'b00000000000000};
				32'b01111:	shifterL={in[31:15],15'b000000000000000};
				32'b10000:	shifterL={in[31:16],16'b0000000000000000};
				32'b10001:	shifterL={in[31:17],17'b00000000000000000};
				32'b10010:	shifterL={in[31:18],18'b000000000000000000};
				32'b10011:	shifterL={in[31:19],19'b0000000000000000000};
				32'b10100:	shifterL={in[31:20],20'b00000000000000000000};
				32'b10101:	shifterL={in[31:21],21'b000000000000000000000};
				32'b10110:	shifterL={in[31:22],22'b0000000000000000000000};
				32'b10111:	shifterL={in[31:23],23'b00000000000000000000000};
				32'b11000:	shifterL={in[31:24],24'b000000000000000000000000};
				32'b11001:	shifterL={in[31:25],25'b0000000000000000000000000};
				32'b11010:	shifterL={in[31:26],26'b00000000000000000000000000};
				32'b11011:	shifterL={in[31:27],27'b000000000000000000000000000};
				32'b11100:	shifterL={in[31:28],28'b0000000000000000000000000000};
				32'b11101:	shifterL={in[31:29],29'b00000000000000000000000000000};
				32'b11110:	shifterL={in[31:30],30'b000000000000000000000000000000};
				32'b11111:	shifterL={in[31:31],31'b0000000000000000000000000000000};
				default  :	shifterL=32'b00000000000000000000000000000000;
				endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll32lt.v

module sll32lt(indata,val,outdata);

  input [31:0] indata;
	input [31:0] val;
	output [31:0] outdata;
		
	assign outdata=indata<<val;
endmodule
	

sll4.v

module sll4(indata,val,outdata);

  input [3:0] indata;
	input [3:0] val;
	output [3:0] outdata;
	
	function [3:0] shifterL;
		input [3:0] in;
		input [3:0] sv;
		begin
			case (sv)
				4'b000:	shifterL=in[3:0];
				4'b001:	shifterL={in[3:1],1'b0};
				4'b010:	shifterL={in[3:2],2'b00};
				4'b011:	shifterL={in[3:3],3'b000};
				default:	shifterL=4'b0000;
			endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll48.v

module sll48(indata,val,outdata);

  input [47:0] indata;
	input [47:0] val;
	output [47:0] outdata;
	
	function [47:0] shifterL;
		input [47:0] in;
		input [47:0] sv;
		begin
			case (sv)
				48'b000000:	shifterL=in[47:0];
				48'b000001:	shifterL={in[47:1],1'b0};
				48'b000010:	shifterL={in[47:2],2'b00};
				48'b000011:	shifterL={in[47:3],3'b000};
				48'b000100:	shifterL={in[47:4],4'b0000};
				48'b000101:	shifterL={in[47:5],5'b00000};
				48'b000110:	shifterL={in[47:6],6'b000000};
				48'b000111:	shifterL={in[47:7],7'b0000000};
				48'b001000:	shifterL={in[47:8],8'b00000000};
				48'b001001:	shifterL={in[47:9],9'b000000000};
				48'b001010:	shifterL={in[47:10],10'b0000000000};
				48'b001011:	shifterL={in[47:11],11'b00000000000};
				48'b001100:	shifterL={in[47:12],12'b000000000000};
				48'b001101:	shifterL={in[47:13],13'b0000000000000};
				48'b001110:	shifterL={in[47:14],14'b00000000000000};
				48'b001111:	shifterL={in[47:15],15'b000000000000000};
				48'b010000:	shifterL={in[47:16],16'b0000000000000000};
				48'b010001:	shifterL={in[47:17],17'b00000000000000000};
				48'b010010:	shifterL={in[47:18],18'b000000000000000000};
				48'b010011:	shifterL={in[47:19],19'b0000000000000000000};
				48'b010100:	shifterL={in[47:20],20'b00000000000000000000};
				48'b010101:	shifterL={in[47:21],21'b000000000000000000000};
				48'b010110:	shifterL={in[47:22],22'b0000000000000000000000};
				48'b010111:	shifterL={in[47:23],23'b00000000000000000000000};
				48'b011000:	shifterL={in[47:24],24'b000000000000000000000000};
				48'b011001:	shifterL={in[47:25],25'b0000000000000000000000000};
				48'b011010:	shifterL={in[47:26],26'b00000000000000000000000000};
				48'b011011:	shifterL={in[47:27],27'b000000000000000000000000000};
				48'b011100:	shifterL={in[47:28],28'b0000000000000000000000000000};
				48'b011101:	shifterL={in[47:29],29'b00000000000000000000000000000};
				48'b011110:	shifterL={in[47:30],30'b000000000000000000000000000000};
				48'b011111:	shifterL={in[47:31],31'b0000000000000000000000000000000};
				48'b100000:	shifterL={in[47:32],32'b00000000000000000000000000000000};
				48'b100001:	shifterL={in[47:33],33'b000000000000000000000000000000000};
				48'b100010:	shifterL={in[47:34],34'b0000000000000000000000000000000000};
				48'b100011:	shifterL={in[47:35],35'b00000000000000000000000000000000000};
				48'b100100:	shifterL={in[47:36],36'b000000000000000000000000000000000000};
				48'b100101:	shifterL={in[47:37],37'b0000000000000000000000000000000000000};
				48'b100110:	shifterL={in[47:38],38'b00000000000000000000000000000000000000};
				48'b100111:	shifterL={in[47:39],39'b000000000000000000000000000000000000000};
				48'b101000:	shifterL={in[47:40],40'b0000000000000000000000000000000000000000};
				48'b101001:	shifterL={in[47:41],41'b00000000000000000000000000000000000000000};
				48'b101010:	shifterL={in[47:42],42'b000000000000000000000000000000000000000000};
				48'b101011:	shifterL={in[47:43],43'b0000000000000000000000000000000000000000000};
				48'b101100:	shifterL={in[47:44],44'b00000000000000000000000000000000000000000000};
				48'b101101:	shifterL={in[47:45],45'b000000000000000000000000000000000000000000000};
				48'b101110:	shifterL={in[47:46],46'b0000000000000000000000000000000000000000000000};
				48'b101111:	shifterL={in[47:47],47'b00000000000000000000000000000000000000000000000};
				default  :	shifterL=           48'b000000000000000000000000000000000000000000000000;
				endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll48lt.v

module sll48lt(indata,val,outdata);

  input [47:0] indata;
	input [47:0] val;
	output [47:0] outdata;
		
	assign outdata=indata<<val;
endmodule

sll4lt.v

module sll4lt(indata,val,outdata);

  input [3:0] indata;
	input [3:0] val;
	output [3:0] outdata;
		
	assign outdata=indata<<val;
endmodule

sll64.v

module sll64(indata,val,outdata);

  input [63:0] indata;
	input [63:0] val;
	output [63:0] outdata;
	
	function [63:0] shifterL;
		input [63:0] in;
		input [63:0] sv;
		begin
			case (sv)
				64'b000000:	shifterL=in[63:0];
				64'b000001:	shifterL={in[63:1],1'b0};
				64'b000010:	shifterL={in[63:2],2'b00};
				64'b000011:	shifterL={in[63:3],3'b000};
				64'b000100:	shifterL={in[63:4],4'b0000};
				64'b000101:	shifterL={in[63:5],5'b00000};
				64'b000110:	shifterL={in[63:6],6'b000000};
				64'b000111:	shifterL={in[63:7],7'b0000000};
				64'b001000:	shifterL={in[63:8],8'b00000000};
				64'b001001:	shifterL={in[63:9],9'b000000000};
				64'b001010:	shifterL={in[63:10],10'b0000000000};
				64'b001011:	shifterL={in[63:11],11'b00000000000};
				64'b001100:	shifterL={in[63:12],12'b000000000000};
				64'b001101:	shifterL={in[63:13],13'b0000000000000};
				64'b001110:	shifterL={in[63:14],14'b00000000000000};
				64'b001111:	shifterL={in[63:15],15'b000000000000000};
				64'b010000:	shifterL={in[63:16],16'b0000000000000000};
				64'b010001:	shifterL={in[63:17],17'b00000000000000000};
				64'b010010:	shifterL={in[63:18],18'b000000000000000000};
				64'b010011:	shifterL={in[63:19],19'b0000000000000000000};
				64'b010100:	shifterL={in[63:20],20'b00000000000000000000};
				64'b010101:	shifterL={in[63:21],21'b000000000000000000000};
				64'b010110:	shifterL={in[63:22],22'b0000000000000000000000};
				64'b010111:	shifterL={in[63:23],23'b00000000000000000000000};
				64'b011000:	shifterL={in[63:24],24'b000000000000000000000000};
				64'b011001:	shifterL={in[63:25],25'b0000000000000000000000000};
				64'b011010:	shifterL={in[63:26],26'b00000000000000000000000000};
				64'b011011:	shifterL={in[63:27],27'b000000000000000000000000000};
				64'b011100:	shifterL={in[63:28],28'b0000000000000000000000000000};
				64'b011101:	shifterL={in[63:29],29'b00000000000000000000000000000};
				64'b011110:	shifterL={in[63:30],30'b000000000000000000000000000000};
				64'b011111:	shifterL={in[63:31],31'b0000000000000000000000000000000};
				64'b100000:	shifterL={in[63:32],32'b00000000000000000000000000000000};
				64'b100001:	shifterL={in[63:33],33'b000000000000000000000000000000000};
				64'b100010:	shifterL={in[63:34],34'b0000000000000000000000000000000000};
				64'b100011:	shifterL={in[63:35],35'b00000000000000000000000000000000000};
				64'b100100:	shifterL={in[63:36],36'b000000000000000000000000000000000000};
				64'b100101:	shifterL={in[63:37],37'b0000000000000000000000000000000000000};
				64'b100110:	shifterL={in[63:38],38'b00000000000000000000000000000000000000};
				64'b100111:	shifterL={in[63:39],39'b000000000000000000000000000000000000000};
				64'b101000:	shifterL={in[63:40],40'b0000000000000000000000000000000000000000};
				64'b101001:	shifterL={in[63:41],41'b00000000000000000000000000000000000000000};
				64'b101010:	shifterL={in[63:42],42'b000000000000000000000000000000000000000000};
				64'b101011:	shifterL={in[63:43],43'b0000000000000000000000000000000000000000000};
				64'b101100:	shifterL={in[63:44],44'b00000000000000000000000000000000000000000000};
				64'b101101:	shifterL={in[63:45],45'b000000000000000000000000000000000000000000000};
				64'b101110:	shifterL={in[63:46],46'b0000000000000000000000000000000000000000000000};
				64'b101111:	shifterL={in[63:47],47'b00000000000000000000000000000000000000000000000};
				64'b110000:	shifterL={in[63:48],48'b000000000000000000000000000000000000000000000000};
				64'b110001:	shifterL={in[63:49],49'b0000000000000000000000000000000000000000000000000};
				64'b110010:	shifterL={in[63:50],50'b00000000000000000000000000000000000000000000000000};
				64'b110011:	shifterL={in[63:51],51'b000000000000000000000000000000000000000000000000000};
				64'b110100:	shifterL={in[63:52],52'b0000000000000000000000000000000000000000000000000000};
				64'b110101:	shifterL={in[63:53],53'b00000000000000000000000000000000000000000000000000000};
				64'b110110:	shifterL={in[63:54],54'b000000000000000000000000000000000000000000000000000000};
				64'b110111:	shifterL={in[63:55],55'b0000000000000000000000000000000000000000000000000000000};
				64'b111000:	shifterL={in[63:56],56'b00000000000000000000000000000000000000000000000000000000};
				64'b111001:	shifterL={in[63:57],57'b000000000000000000000000000000000000000000000000000000000};
				64'b111010:	shifterL={in[63:58],58'b0000000000000000000000000000000000000000000000000000000000};
				64'b111011:	shifterL={in[63:59],59'b00000000000000000000000000000000000000000000000000000000000};
				64'b111100:	shifterL={in[63:60],60'b000000000000000000000000000000000000000000000000000000000000};
				64'b111101:	shifterL={in[63:61],61'b0000000000000000000000000000000000000000000000000000000000000};
				64'b111110:	shifterL={in[63:62],62'b00000000000000000000000000000000000000000000000000000000000000};
				64'b111111:	shifterL={in[63:63],63'b0000000000000000000000000000000000000000000000000000000000000000};
				default  :	shifterL=           64'b0000000000000000000000000000000000000000000000000000000000000000;
				endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll64lt.v

module sll64lt(indata,val,outdata);

  input [63:0] indata;
	input [63:0] val;
	output [63:0] outdata;
		
	assign outdata=indata<<val;
endmodule
	

sll8.v

module sll8(indata,val,outdata);

  input [7:0] indata;
	input [7:0] val;
	output [7:0] outdata;
	
	function [7:0] shifterL;
		input [7:0] in;
		input [7:0] sv;
		begin
			case (sv)
				8'b000:	shifterL=in[7:0];
				8'b001:	shifterL={in[7:1],1'b0};
				8'b010:	shifterL={in[7:2],2'b00};
				8'b011:	shifterL={in[7:3],3'b000};
				8'b100:	shifterL={in[7:4],4'b0000};
				8'b101:	shifterL={in[7:5],5'b00000};
				8'b110:	shifterL={in[7:6],6'b000000};
				8'b111:	shifterL={in[7],7'b0000000};
				default:	shifterL=8'b00000000;
			endcase
		end
	endfunction
	
	assign outdata=shifterL(indata,val);
endmodule
	

sll8lt.v

module sll8lt(indata,val,outdata);

  input [7:0] indata;
	input [7:0] val;
	output [7:0] outdata;
		
	assign outdata=indata<<val;
endmodule

sllp.v

module sllp(indata,val,outdata);

  parameter sllp_MAXSHIFT=63; // default [63:0]

	input [sllp_MAXSHIFT:0] indata;
	input [sllp_MAXSHIFT:0] val;
	output [sllp_MAXSHIFT:0] outdata;
		
	assign outdata=indata<<val;
endmodule