From d1415daa69fefdbbe18fcaeb00edd330af8511eb Mon Sep 17 00:00:00 2001
From: jonnosan <jonnosan@93682198-c243-4bdb-bd91-e943c89aac3b>
Date: Sun, 15 Nov 2009 10:04:24 +0000
Subject: [PATCH] fixed bug with sending wrong seq number when ACKing inbound
 data just after sending data out

git-svn-id: http://svn.code.sf.net/p/netboot65/code@221 93682198-c243-4bdb-bd91-e943c89aac3b
---
 client/ip65/tcp.s | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/client/ip65/tcp.s b/client/ip65/tcp.s
index ec2103d..49d8b71 100644
--- a/client/ip65/tcp.s
+++ b/client/ip65/tcp.s
@@ -1026,7 +1026,9 @@ tcp_process:
 	sta tcp_remote_ip,x
   lda tcp_connect_ack_number,x
   sta tcp_ack_number,x
-  lda tcp_connect_sequence_number,x
+;if we have just sent a packet out, we may not yet have updated tcp_connect_sequence_number yet
+;so use current value of tcp_connect_expected_ack_number as outbound sequence number instead
+  lda tcp_connect_expected_ack_number,x   
   sta tcp_sequence_number,x
 	dex
 	bpl :-