Add links and update to reference slot 3

README.md

@@ -3,7 +3,7 @@
 High quality audio player for streaming audio over Ethernet, for the Apple II.
 
 Requires:
-*  Uthernet II (currently assumed to be in slot 1)
+*  Uthernet II (currently assumed to be in slot 3)
 *  Enhanced //e or (untested) //gs.  
     * The player should run on 6502 but about 10% _faster_ on a 6502 than 65c02 (and with lower audio quality, until
     the encoder understands this).  See "future work" below.
@@ -39,6 +39,10 @@ where:
 
 TODO: document flags
 
+## Playback
+
+Download the (bootable) Apple II player disk image [here](player/player.dsk)
+
 ## Serving
 
 This runs a HTTP server listening on port 1977 to which the player connects, then unidirectionally streams it the data.
@@ -47,6 +51,13 @@ This runs a HTTP server listening on port 1977 to which the player connects, the
 $ ./play_audio.py <filename.a2s>
 ```
 
+A sample audio file can be downloaded [here](examples/adventure.a2s.bz2) ("Adventure" by [Alexander Nakarada](http://www.serpentsoundstudios.com), licensed under [CC BY Attribution 4.0](https://creativecommons.org/licenses/by/4.0/)).  It first needs to be uncompressed, e.g.
+
+```
+% bunzip2 adventure.a2s.bz2
+% ./play_audio adventure.a2s
+```
+
 # Details
 
 ## Theory of operation

player/player.s

@@ -42,11 +42,11 @@ FADDR:    .byte   10,0,0,1                   ; 10.0.0.1       FOREIGN IP
 FPORT:    .byte   $07,$b9                    ; 1977           FOREIGN PORT
 MAC:      .byte   $00,$08,$DC,$01,$02,$03    ; W5100 MAC ADDRESS
 
-; SLOT 1 I/O ADDRESSES FOR THE W5100
+; SLOT 3 I/O ADDRESSES FOR THE W5100
 ; Change this to support the Uthernet II in another slot
 ;
 ; TODO: make slot I/O addresses customizable at runtime - would probably require somehow
-;   compiling a list of all of the binary offsets at which we reference $C09x and patching
+;   compiling a list of all of the binary offsets at which we reference $C0bx and patching
 ;   them in memory or on-disk.
 WMODE = $C0b4
 WADRH = $C0b5