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yosys/tests/xilinx_ug901/ram_simple_dual_one_clock.v
2019-10-17 17:08:38 +02:00

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Verilog

// Simple Dual-Port Block RAM with One Clock
// File: simple_dual_one_clock.v
module simple_dual_one_clock (clk,ena,enb,wea,addra,addrb,dia,dob);
input clk,ena,enb,wea;
input [9:0] addra,addrb;
input [15:0] dia;
output [15:0] dob;
reg [15:0] ram [1023:0];
reg [15:0] doa,dob;
always @(posedge clk) begin
if (ena) begin
if (wea)
ram[addra] <= dia;
end
end
always @(posedge clk) begin
if (enb)
dob <= ram[addrb];
end
endmodule