X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2Fvic20.sgml;h=a99e87c708869942f5bf75528314daba780c2142;hb=refs%2Ftags%2FV2.13.0;hp=67c5b8e142dbe0910ca529d0512e5ed7ddc37299;hpb=9570fb4f630816f761af8066e5c2d1c8637d66cc;p=cc65 diff --git a/doc/vic20.sgml b/doc/vic20.sgml index 67c5b8e14..a99e87c70 100644 --- a/doc/vic20.sgml +++ b/doc/vic20.sgml @@ -41,9 +41,9 @@ config. Memory layout

-cc65 generated programs with the default setup run with the I/O area and the -kernal and BASIC ROM enabled (RAM at $A000 - $BFFF may be used -for the heap), which gives a usable memory range of $1000 - $1DFF. +cc65 generated programs with the default setup run with unexpanded memory +(RAM at $A000 - $BFFF may be used for the heap), +which gives a usable memory range of $1000 - $1DFF. All ROM entry points may be called directly without additional code. Special locations: @@ -73,12 +73,8 @@ common to all CBM platforms. VIC20 specific functions

-The functions listed below are special for the VIC20. See the for declaration and usage. +There are currently no special VIC20 functions. - -get_ostype - CBM specific functions

@@ -157,6 +153,12 @@ No extended memory drivers are currently available for the VIC20. Supports one standard joystick connected to the joysticks port of the VIC20. + + Driver for the Protovision 4-player adapter contributed by Groepaz. See + for prices and + building instructions. Up to three joysticks are supported. +

@@ -218,6 +220,14 @@ code: +Interrupts

+ +The runtime for the VIC20 uses routines marked as . + Bugs/Feedback