From deebf92127386873cb34d46f414d31c7a69adcfe Mon Sep 17 00:00:00 2001
From: dianshi <dianshi@main.lv>
Date: Thu, 13 Jan 2022 21:41:49 +0000
Subject: Added datamem with 8bytes of memory

---
 datamem/v0.1/data_memory.v | 49 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 datamem/v0.1/data_memory.v

(limited to 'datamem/v0.1/data_memory.v')

diff --git a/datamem/v0.1/data_memory.v b/datamem/v0.1/data_memory.v
new file mode 100644
index 0000000..bf29390
--- /dev/null
+++ b/datamem/v0.1/data_memory.v
@@ -0,0 +1,49 @@
+`include "parameters.h"
+
+module data_memory(
+    input clk,
+    input [15:0]mem_access_addr, //address input
+    input [15:0]mem_write_data,  //data to be written
+    input mem_write_en,   
+    input mem_read,
+    output [15:0] mem_read_data  //read data
+);
+
+//amount of memory
+reg [`col-1:0]memory[`row_d-1:0];
+integer f;
+wire [2:0]ram_addr=mem_access_addr[2:0];
+
+//load data to memory
+initial begin 
+    $readmemb("test.data",memory);
+    f = $fopen(`filename);
+    $monitor(f,"time=%d\n",$time,
+        "\tmemory[0] = %b\n", memory[0],   
+        "\tmemory[1] = %b\n", memory[1],
+        "\tmemory[2] = %b\n", memory[2],
+        "\tmemory[3] = %b\n", memory[3],
+        "\tmemory[4] = %b\n", memory[4],
+        "\tmemory[5] = %b\n", memory[5],
+        "\tmemory[6] = %b\n", memory[6],
+        "\tmemory[7] = %b\n", memory[7]
+    );
+    `simulation_time;
+    $fclose(f);
+end
+
+//if memory write is enable write to memory
+always @(posedge clk) begin
+    if (mem_write_en)
+        memory[ram_addr] <= mem_write_data;
+end
+
+
+
+
+//if memory read is enabled then read memory otherwise output zeros
+assign mem_read_data = (mem_read==1'b1) ? memory[ram_addr]: 16'd0;
+
+
+endmodule
+
-- 
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