From bf277f3d2f96761dc506e0cf1f349b068a24d406 Mon Sep 17 00:00:00 2001
From: "Andreas.Olofsson" <andreas@adapteva.com>
Date: Thu, 26 Mar 2020 12:18:59 -0400
Subject: [PATCH] Adding offset removal to script -Allows us to remove the
 pesky 0x80000000 from the RV infrastucture -They refuse to fix the boot
 sequence in spike for bare metal -This is the workaround

---
 scripts/hex2hex | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/scripts/hex2hex b/scripts/hex2hex
index 0ad0f6a..8776c5a 100755
--- a/scripts/hex2hex
+++ b/scripts/hex2hex
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #############################################################################
-# hex2hex <inputfile> <outputfile> <memory-width> [-emf] [-offset]
+# hex2hex <inputfile> <outputfile> <memory-width> <offset>
 #
 # Script uses objcopy to dump a Verilog comptatible hex file
 #
@@ -8,6 +8,8 @@
 #
 # Script also supports creating EMF transactions with one address per data
 #
+# Offset to remove from all hex addresses
+#
 #############################################################################
 import sys
 import re
@@ -15,8 +17,8 @@ import re
 hexin  = sys.argv[1]
 hexout = sys.argv[2]
 width  = int(int(sys.argv[3])/8) #needed for both
+offset = int(sys.argv[4],16)
 emf    = 0 # emf
-offset = 0 #TODO: specify as hex offset, only for emf
 
 ###################################################
 # Read file into list and strip off trail junk
@@ -27,7 +29,7 @@ list = [line.rstrip('  \n') for line in open(hexin)]
 fileout=open(hexout,"w")
 for line in list:
     if (~line.find('@')): #detects new memory section
-        address = offset + int(int(line.replace('@','',1),16)/8)
+        address = int((int(line.replace('@','',1),16)-offset)/8)
         if(emf):
             print ("Not Implemented")
         else: