eater: Add logic to switch between manual and automatic flags

1 files changed, 8 insertions, 3 deletions

diff --git a/eater_cpu/eater_computer.sv b/eater_cpu/eater_computer.sv
index b93f289..7c8eb17 100644
--- a/eater_cpu/eater_computer.sv
+++ b/eater_cpu/eater_computer.sv
@@ -7,6 +7,8 @@
 module eater_computer(
   // clock input
   input wire clk_in,
+  // Whether to automatically run (vs manual control)
+  input wire auto_run_in,
   // current content of the bus
   output wire [7:0] debug_bus
 );
@@ -40,7 +42,11 @@ wire [7:0]
 // PC is only 4 bit.
 wire [3:0] PC_in, PC_out;
 
-CpuControlFlags flags;
+CpuControlFlags manual_flags;
+wire CpuControlFlags automatic_flags;
+wire CpuControlFlags flags;
+
+assign flags = auto_run_in ? automatic_flags : manual_flags;
 
 /* verilator public_off */
 
@@ -161,8 +167,7 @@ eater_register OUT (
 eater_decoder decoder (
   .clk_i(clk_in),
   .instruction_i(INS_out),
-  .enable_control_i(0),
-  .flags_o()
+  .flags_o(automatic_flags)
 );
 
 endmodule