added tests/memories

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/memories/simple_sram_byte_en.v b/tests/memories/simple_sram_byte_en.v
new file mode 100644
index 00000000..dee1d228
--- /dev/null
+++ b/tests/memories/simple_sram_byte_en.v
@@ -0,0 +1,26 @@
+// expect-wr-ports 1
+// expect-rd-ports 1
+
+module generic_sram_byte_en #(
+	parameter DATA_WIDTH    = 32,
+	parameter ADDRESS_WIDTH = 4
+) (
+	input                           i_clk,
+	input      [DATA_WIDTH-1:0]     i_write_data,
+	input                           i_write_enable,
+	input      [ADDRESS_WIDTH-1:0]  i_address,
+	input      [DATA_WIDTH/8-1:0]   i_byte_enable,
+	output reg [DATA_WIDTH-1:0]     o_read_data
+);
+
+reg [DATA_WIDTH-1:0] mem [0:2**ADDRESS_WIDTH-1];
+integer i;
+
+always @(posedge i_clk) begin
+	for (i=0;i<DATA_WIDTH/8;i=i+1)
+		if (i_write_enable && i_byte_enable[i])
+			mem[i_address][i*8 +: 8] <= i_write_data[i*8 +: 8];
+	o_read_data <= mem[i_address];
+end
+
+endmodule