2019-09-03 03:53:37 -05:00
|
|
|
/*
|
|
|
|
|
Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 74].
|
|
|
|
|
*/
|
|
|
|
|
module top(data, addr);
|
2020-01-01 11:05:46 -06:00
|
|
|
output [3:0] data; // Note: this prompts a Yosys warning, but
|
|
|
|
|
// vendor doc does not contain 'reg'
|
2019-09-03 03:53:37 -05:00
|
|
|
input [4:0] addr;
|
|
|
|
|
always @(addr) begin
|
|
|
|
|
case (addr)
|
|
|
|
|
0 : data = 'h4;
|
|
|
|
|
1 : data = 'h9;
|
|
|
|
|
2 : data = 'h1;
|
|
|
|
|
15 : data = 'h8;
|
|
|
|
|
16 : data = 'h1;
|
|
|
|
|
17 : data = 'h0;
|
|
|
|
|
default : data = 'h0;
|
|
|
|
|
endcase
|
|
|
|
|
end
|
|
|
|
|
endmodule
|
