Files
TSConf_MiST/rtl/sound/jt12/jt12_opram.v
2020-05-11 23:17:53 +08:00

80 lines
2.0 KiB
Verilog

`timescale 1ns / 1ps
/* This file is part of JT12.
JT12 program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
JT12 program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with JT12. If not, see <http://www.gnu.org/licenses/>.
Based on Sauraen VHDL version of OPN/OPN2, which is based on die shots.
Author: Jose Tejada Gomez. Twitter: @topapate
Version: 1.0
Date: 27-1-2017
*/
module jt12_opram
(
input [4:0] wr_addr,
input [4:0] rd_addr,
input clk,
input [43:0] data,
output reg [43:0] q
);
reg [43:0] ram[31:0];
initial
begin
ram[0] = { ~7'd0, 37'd0 };
ram[1] = { ~7'd0, 37'd0 };
ram[2] = { ~7'd0, 37'd0 };
ram[3] = { ~7'd0, 37'd0 };
ram[4] = { ~7'd0, 37'd0 };
ram[5] = { ~7'd0, 37'd0 };
ram[6] = { ~7'd0, 37'd0 };
ram[7] = { ~7'd0, 37'd0 };
ram[8] = { ~7'd0, 37'd0 };
ram[9] = { ~7'd0, 37'd0 };
ram[10] = { ~7'd0, 37'd0 };
ram[11] = { ~7'd0, 37'd0 };
ram[12] = { ~7'd0, 37'd0 };
ram[13] = { ~7'd0, 37'd0 };
ram[14] = { ~7'd0, 37'd0 };
ram[15] = { ~7'd0, 37'd0 };
ram[16] = { ~7'd0, 37'd0 };
ram[17] = { ~7'd0, 37'd0 };
ram[18] = { ~7'd0, 37'd0 };
ram[19] = { ~7'd0, 37'd0 };
ram[20] = { ~7'd0, 37'd0 };
ram[21] = { ~7'd0, 37'd0 };
ram[22] = { ~7'd0, 37'd0 };
ram[23] = { ~7'd0, 37'd0 };
ram[24] = { ~7'd0, 37'd0 };
ram[25] = { ~7'd0, 37'd0 };
ram[26] = { ~7'd0, 37'd0 };
ram[27] = { ~7'd0, 37'd0 };
ram[28] = { ~7'd0, 37'd0 };
ram[29] = { ~7'd0, 37'd0 };
ram[30] = { ~7'd0, 37'd0 };
ram[31] = { ~7'd0, 37'd0 };
end
always @ (posedge clk) begin
q <= ram[rd_addr];
ram[wr_addr] <= data;
end
endmodule