X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altoslib%2FAltosHexfile.java;h=90352927433f219e1a79c359554c84b2e40009d7;hp=68f42f14b4ade98f023bff8da197213f0c9dd3fe;hb=5b976a6651f4eb05d30afc08b9e1f27c7e52ae00;hpb=09e0c304b420a12fa1616005db946523c6e5bef1

diff --git a/altoslib/AltosHexfile.java b/altoslib/AltosHexfile.java
index 68f42f14..90352927 100644
--- a/altoslib/AltosHexfile.java
+++ b/altoslib/AltosHexfile.java
@@ -15,7 +15,7 @@
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 
-package org.altusmetrum.altoslib_1;
+package org.altusmetrum.altoslib_2;
 
 import java.io.*;
 import java.util.LinkedList;
@@ -230,17 +230,19 @@ public class AltosHexfile {
 		}
 
 		long	extended_addr = 0;
-		long	base = 0xffffffff;
-		long	bound = 0x00000000;
+		long	base = 0;
+		long	bound = 0;
+		boolean	set = false;
 		for (HexRecord record : record_list) {
 			switch (record.type) {
 			case 0:
 				long addr = extended_addr + record.address;
 				long r_bound = addr + record.data.length;
-				if (addr < base)
+				if (!set || addr < base)
 					base = addr;
-				if (r_bound > bound)
+				if (!set || r_bound > bound)
 					bound = r_bound;
+				set = true;
 				break;
 			case 1:
 				break;
@@ -259,7 +261,7 @@ public class AltosHexfile {
 			}
 		}
 
-		if (base >= bound)
+		if (!set || base >= bound)
 			throw new IOException("invalid hex file");
 
 		if (bound - base > 4 * 1024 * 1024)