Put Ethernet buffers in separate source file.

Having the Ethernet buffers in a separate source file simplifies to override their location by the user of the library.

ip65/Makefile

@@ -25,6 +25,7 @@ IP65OBJS=\
 	download_c.o \
 	error.o \
 	eth.o \
+	eth_buffer.o \
 	eth_c.o \
 	http.o \
 	http_c.o \

ip65/eth.s

@@ -13,21 +13,19 @@
 .exportzp eth_type
 .exportzp eth_data
 
-.export eth_outp
+.import eth_outp
 .export eth_outp_len
-.export eth_inp
+.import eth_inp
 .export eth_inp_len
 
 .import cfg_mac
 
 
 .bss
 
-; input and output buffers
+; input and output buffer lengths
 eth_inp_len:    .res    2       ; input packet length
-eth_inp:        .res 1518       ; space for input packet
 eth_outp_len:   .res    2       ; output packet length
-eth_outp:       .res 1518       ; space for output packet
 
 ; ethernet packet offsets
 eth_dest =  0                   ; offset of destination address in ethernet packet

ip65/eth_buffer.s

@@ -0,0 +1,32 @@
+; Ethernet packet buffers
+
+.export eth_outp
+.export eth_inp
+
+
+.bss
+
+; input and output buffers
+eth_inp:        .res 1518       ; space for input packet
+eth_outp:       .res 1518       ; space for output packet
+
+
+
+; -- LICENSE FOR eth_buffers.s --
+; The contents of this file are subject to the Mozilla Public License
+; Version 1.1 (the "License"); you may not use this file except in
+; compliance with the License. You may obtain a copy of the License at
+; http://www.mozilla.org/MPL/
+;
+; Software distributed under the License is distributed on an "AS IS"
+; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+; License for the specific language governing rights and limitations
+; under the License.
+;
+; The Original Code is ip65.
+;
+; The Initial Developer of the Original Code is Per Olofsson,
+; [email protected].
+; Portions created by the Initial Developer are Copyright (C) 2009
+; Per Olofsson. All Rights Reserved.
+; -- LICENSE END --