From 08dd2eac7475572d63cf048f87e0f4e3eb347718 Mon Sep 17 00:00:00 2001
From: Kunlin Han <hi@iwktd.com>
Date: Wed, 17 Apr 2024 23:26:09 -0700
Subject: [PATCH] Add getenvval for rom. Related to issue #723.

---
 src/generic/mem/rom1p1r.sv | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/generic/mem/rom1p1r.sv b/src/generic/mem/rom1p1r.sv
index 7350eac9c..7a53c529e 100644
--- a/src/generic/mem/rom1p1r.sv
+++ b/src/generic/mem/rom1p1r.sv
@@ -48,7 +48,11 @@ module rom1p1r #(parameter ADDR_WIDTH = 8, DATA_WIDTH = 32, PRELOAD_ENABLED = 0)
 
   initial begin
     if (PRELOAD_ENABLED) begin
+`ifdef VERILATOR
+      $readmemh({getenvval("WALLY"), "/fpga/src/boot.mem"}, ROM, 0);
+`else
       $readmemh("$WALLY/fpga/src/boot.mem", ROM, 0);
+`endif
     end
   end