From 6e9c009250dafcae09120f8b394132635eed39cd Mon Sep 17 00:00:00 2001
From: Olof Kindgren <olof.kindgren@gmail.com>
Date: Mon, 12 Dec 2016 08:38:42 +0100
Subject: [PATCH] Make boot ROM contents configurable through top-level
 parameter

---
 processor/docs/example/computer.v | 7 +++++--
 processor/docs/example/rom.v      | 7 +++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/processor/docs/example/computer.v b/processor/docs/example/computer.v
index b63f31d..f2302ed 100644
--- a/processor/docs/example/computer.v
+++ b/processor/docs/example/computer.v
@@ -1,6 +1,9 @@
 `timescale 1ns / 1ps
 
-module computer(
+module computer #(
+	parameter bootrom_file = "example.hex"
+)
+(
 `ifdef VERILATOR
 	input clk,
 	input reset
@@ -123,7 +126,7 @@ module computer(
 		.wb_dat_o()
 	);
 
-	rom rom(
+	rom #(.bootrom_file(bootrom_file)) rom(
 		.A(xadr[11:3]),
 		.Q(romQ),
 		.STB(STB)
diff --git a/processor/docs/example/rom.v b/processor/docs/example/rom.v
index 1686fde..6b8f594 100644
--- a/processor/docs/example/rom.v
+++ b/processor/docs/example/rom.v
@@ -1,6 +1,9 @@
 `timescale 1ns / 1ps
 
-module rom(
+module rom #(
+	parameter bootrom_file = ""
+)
+(
 	input	[11:3]	A,	// Address
 	output	[63:0]	Q,	// Data output
 	input	STB		// True if ROM is being accessed.
@@ -10,7 +13,7 @@ module rom(
 	assign Q = STB ? results : 0;
 
 	initial begin
-		$readmemh("example.hex", contents);
+		$readmemh(bootrom_file, contents);
 	end
 endmodule