From cb0be9e2039569ee7d18657e8f675d1f8369b407 Mon Sep 17 00:00:00 2001 From: Flavian Kaufmann Date: Tue, 21 May 2024 13:50:28 +0200 Subject: restructured project --- src/memory_interface.v | 84 -------------------------------------------------- 1 file changed, 84 deletions(-) delete mode 100644 src/memory_interface.v (limited to 'src/memory_interface.v') diff --git a/src/memory_interface.v b/src/memory_interface.v deleted file mode 100644 index 0bc547b..0000000 --- a/src/memory_interface.v +++ /dev/null @@ -1,84 +0,0 @@ -module memory_interface ( - input clk, - input rstn, - - input we, - input [31:0] addr, - input [31:0] wd, - - output reg [31:0] rd, - - input [31:0] io_in, - output [31:0] io_out -); - -`include "include/consts.vh" - -reg ram_we; -reg io_we; -wire [31:0] ram_rd, rom_rd; -reg [31:0] rel_addr; - -ram #(.N(32), .SIZE(1024)) ram( - .clk(clk), - .rstn(rstn), - .we(ram_we), - .addr(rel_addr), - .data_read(ram_rd), - .data_write(wd) -); - -rom #(.N(32), .SIZE(1024)) rom( - .clk(clk), - .addr(rel_addr), - .data_read(rom_rd) -); - -io io( - .clk(clk), - .rstn(rstn), - .we(io_we), - .addr(rel_addr), - .rd(io_rd), - .wd(wd), - .io_in(io_in), - .io_out(io_out) -); - - -// 0000 0000 Reserved -// 0000 FFFF -// -// 0001 0000 ROM -// 000F FFFF -// -// 0010 0000 RAM -// FF0F FFFF -// -// FF10 0000 Reserved -// FFFF FFFF - - -always @ (*) begin - rd = 0; - rel_addr = 0; - ram_we = 0; - io_we = 0; - if ( addr >= ROM_BEGIN && addr <= ROM_END) begin - rd = rom_rd; - rel_addr = addr - ROM_BEGIN; - end else if (addr >= RAM_BEGIN && addr <= RAM_END) begin - ram_we = we; - rd = ram_rd; - rel_addr = addr - RAM_BEGIN; - end else if (addr >= IO_BEGIN && addr <= IO_END) begin - io_we = we; - rd = io_rd; - rel_addr = addr - IO_BEGIN; - end else begin - rd = 0; - rel_addr = 0; - end -end - -endmodule -- cgit v1.2.3