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x_s3e_dpram.v
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52 lines (43 loc) · 776 Bytes
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`timescale 1ns/1ns
`include "global_config.h"
`include "stddef.h"
`include "nettype.h"
module x_s3e_dpram(clka,wea,addra,dina,douta,
clkb,web,addrb,dinb,doutb);
input clka,clkb;
input wea,web;
input[11:0] addra,addrb;
input[31:0] dina,dinb;
output reg[31:0] douta,doutb;
reg[31:0] mem[0:4095];
always@(posedge clka)
begin
if((web == `ENABLE) && (addra == addrb))
begin
douta <= #1 dinb;
end
else
begin
douta <= #1 mem[addra];
end
if(wea == `ENABLE)
begin
mem[addra] <= #1 dina;
end
end
always@(posedge clkb)
begin
if((wea == `ENABLE) && (addrb == addra))
begin
doutb <= #1 dina;
end
else
begin
doutb <= #1 mem[addrb];
end
if(web == `ENABLE)
begin
mem[addrb] <= #1 dinb;
end
end
endmodule