X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2Fvic20.sgml;h=a99e87c708869942f5bf75528314daba780c2142;hb=ca5ada12bae21502cdd5947b1ed694c47a46e696;hp=7bea979d171465eb4f86538735fd125d2dc84f5d;hpb=56656eac69b1a2dbc4da1d8d02d107c3ce372e68;p=cc65

diff --git a/doc/vic20.sgml b/doc/vic20.sgml
index 7bea979d1..a99e87c70 100644
--- a/doc/vic20.sgml
+++ b/doc/vic20.sgml
@@ -41,9 +41,9 @@ config.
 
 <sect>Memory layout<p>
 
-cc65 generated programs with the default setup run with the I/O area and the
-kernal and BASIC ROM enabled (RAM at &dollar;A000 - &dollar;BFFF may be used
-for the heap), which gives a usable memory range of &dollar;1000 - &dollar;1DFF.
+cc65 generated programs with the default setup run with unexpanded memory
+(RAM at &dollar;A000 - &dollar;BFFF may be used for the heap),
+which gives a usable memory range of &dollar;1000 - &dollar;1DFF.
 All ROM entry points may be called directly without additional code.
 
 Special locations:
@@ -153,6 +153,12 @@ No extended memory drivers are currently available for the VIC20.
   <tag><tt/vic20-stdjoy.joy/</tag>
   Supports one standard joystick connected to the joysticks port of the VIC20.
 
+  <tag><tt/vic20-ptvjoy.joy/</tag>
+  Driver for the Protovision 4-player adapter contributed by Groepaz. See
+  <htmlurl url="http://www.protovision-online.de/hardw/hardwstart.htm"
+  name="http://www.protovision-online.de/hardw/hardwstart.htm"> for prices and
+  building instructions. Up to three joysticks are supported.
+
 </descrip><p>