Merge remote-tracking branch 'origin' into da65-synclines

[cc65] / doc / vic20.sgml

diff --git a/doc/vic20.sgml b/doc/vic20.sgml
index 5fba59a13c288a5824e7be0d7b4ffbc31c3dafdc..79c2fb8986b833fa50af7a7d0774dc9cafedc656 100644 (file)
--- a/doc/vic20.sgml
+++ b/doc/vic20.sgml
@@ -2,11 +2,11 @@
 
 <article>
 
-<title>Commodore VIC20 (aka VC20) specific information for cc65
+<title>Commodore VIC20 (aka VC20 aka VIC1001) specific information for cc65
 <author>
 <url url="mailto:uz@cc65.org" name="Ullrich von Bassewitz">,<newline>
 <url url="mailto:polluks@sdf.lonestar.org" name="Stefan A. Haubenthal">
-<date>2014-04-12
+<date>2018-04-20
 
 <abstract>
 An overview over the VIC20 runtime system as it is implemented for the cc65 C
@@ -99,6 +99,8 @@ declaration and usage.
 <item>cbm_k_basin
 <item>cbm_k_bsout
 <item>cbm_k_clrch
+<item>cbm_k_tksa
+<item>cbm_k_second
 <item>cbm_load
 <item>cbm_open
 <item>cbm_opendir
@@ -147,7 +149,19 @@ No graphics drivers are currently available for the VIC20.
 
 <sect1>Extended memory drivers<p>
 
-No extended memory drivers are currently available for the VIC20.
+<descrip>
+
+  <tag><tt/vic20-rama.emd (vic20_rama_emd)/</tag>
+  A driver for any RAM at $A000-$BFFF. Supports 32 256 byte pages.
+  Written and contributed by Marco van den Heuvel.
+
+  <tag><tt/vic20-georam.emd (vic20_georam_emd)/</tag>
+  A driver for the Berkeley Softworks GeoRam cartridge connected by means of
+  the MasC=erade c64 cartridge adapter. The driver will determine the
+  available RAM from the connected cartridge. It supports 64KB
+  up to 2048KB of RAM.
+
+</descrip><p>
 
 
 <sect1>Joystick drivers<p>
@@ -161,8 +175,9 @@ The default drivers, <tt/joy_stddrv (joy_static_stddrv)/, point to <tt/vic20-std
 
   <tag><tt/vic20-ptvjoy.joy (vic20_ptvjoy_joy)/</tag>
   Driver for the Protovision 4-player adapter contributed by Groepaz. See
-  <url url="http://www.protovision-online.de/hardw/hardwstart.htm"> for prices and
-  building instructions. Up to three joysticks are supported.
+  <url url="https://www.protovision.games/hardw/4_player.php"
+  name="the Protovision shop"> for prices and building instructions. Up to three
+  joysticks are supported.
 
 </descrip><p>
 
@@ -181,13 +196,14 @@ No VIC1011 drivers are currently available for the VIC20.
 <sect>Limitations<p>
 
 
+<sect1>Escape code<p>
 
-<sect>Other hints<p>
+The CTRL key cannot be used to type most control characters,
+entering an Esc is not possible.
 
 
-<sect1>Escape code<p>
 
-For an Esc, press CTRL and the <tt/[/ key.
+<sect>Other hints<p>
 
 
 <sect1>Passing arguments to the program<p>
@@ -218,8 +234,7 @@ The program return code (low byte) is passed back to BASIC by use of the
 
 <sect1>Using extended memory<p>
 
-The extended memory at $A000 may be added to the heap by using the following
-code:
+BLK5 memory may be added to the heap by using the following code:
 
 <tscreen><verb>
     /* Check for the existence of RAM */