eater: Add ALU

while doing so,
add always_out port for regs

1 files changed, 17 insertions, 0 deletions

diff --git a/eater_cpu/eater_alu.sv b/eater_cpu/eater_alu.sv
new file mode 100644
index 0000000..b0fa9ae
--- /dev/null
+++ b/eater_cpu/eater_alu.sv
@@ -0,0 +1,17 @@
+// represents the Ben Eater 8bit computer - ALU
+
+`timescale 1us/1us
+
+module eater_alu (
+    input clk_in,
+    input en_output_in,
+
+    input [7:0] A_in,
+    input [7:0] B_in,
+
+    output [7:0] bus_out
+);
+
+assign bus_out = en_output_in ? 0 : 8'bz;
+    
+endmodule