// Pinouts for 8 segment LED displays
//Pin   
//29	LED_CR3	NumLED_L
//35	LED_CR3	NumLED_L
//36	LED_CR3	NumLED_L
//38	LED_CR3	NumLED_L
//39	LED_CR3	NumLED_L
//40	LED_CR3	NumLED_L
//44	LED_CR3	NumLED_L
//37	LED_CR3	DecPtLED_L

//45	LED_CR4	NumLED_R        e
//46	LED_CR4	NumLED_R        d
//47	LED_CR4	NumLED_R        c
//48	LED_CR4	NumLED_R        b
//49	LED_CR4	NumLED_R        a
//50	LED_CR4	NumLED_R        f
//51	LED_CR4	NumLED_R        g
//41	LED_CR4	DecPtLED_R

//  the layout of 7 segment display:
//
//       ---a---
//       |     |
//       f     b
//       |     |
//       ---g---
//       |     |
//       e     c
//       |     |
//       ---d---

//   NOTE: the out is 8 bit [7:0] output with this layout
//         { dec_pt, g, f, a, b, c, d, e }
//         and all signals are "asserted low"


//  NOTE: this module takes two inputs:
//    in - a four-bit value to be displayed
//    in_dot - one bit that controls the decimal point

module bin2LED (in, in_dot, out);

input [3:0] in;
input in_dot;
output [7:0] out;

reg [6:0] out_tmp;

always@(in)
	case (in)
		4'b0000 : out_tmp <= 7'b1000000;
		4'b0001 : out_tmp <= 7'b1110011;
		4'b0010 : out_tmp <= 7'b0100100;
		4'b0011 : out_tmp <= 7'b0100001;
		4'b0100 : out_tmp <= 7'b0010011;
		4'b0101 : out_tmp <= 7'b0001001;
		4'b0110 : out_tmp <= 7'b0001000;
		4'b0111 : out_tmp <= 7'b1100011;
		
		4'b1000 : out_tmp <= 7'b0000000;
		4'b1001 : out_tmp <= 7'b0000001;
		4'b1010 : out_tmp <= 7'b0000010;
		4'b1011 : out_tmp <= 7'b0011000;
		4'b1100 : out_tmp <= 7'b1001100;
		4'b1101 : out_tmp <= 7'b0110000;
		4'b1110 : out_tmp <= 7'b0001100;
		4'b1111 : out_tmp <= 7'b0001110;

		default : out_tmp <= 7'b0;
	endcase
	
	
assign out = { ~in_dot, out_tmp };

endmodule