This file contains an overview of the Supervision runtime system as it comes with the cc65 C compiler. It describes the memory layout, Supervision specific header files, available drivers, and any pitfalls specific to that platform.
Please note that Supervision specific functions are just mentioned here, they are described in detail in the separate function reference. Even functions marked as "platform dependent" may be available on more than one platform. Please see the function reference for more information.
The standard binary output format generated by the linker for the Supervision target is a 2×16 kbyte machine language program. It is of course possible to change this behaviour by using one of the different linker configs.
cc65 generated programs with the default setup run with the I/O area enabled, which gives a usable memory range of $8000 - $FFF9. More ROM may need additional bankswitching code.
No conio support is currently available for the Supervision.
The C runtime stack is located at $1FFF and growing downwards.
The C heap is located at the end of the program and grows towards the C runtime stack.
Programs containing Supervision specific code may use the
supervision.h header file.
The following pseudo variables declared in the
supervision.inc include file do
allow access to hardware located in the address space.
IO defines allow access to the IO chip.
No graphics drivers are currently available for the Supervision.
No extended memory drivers are currently available for the Supervision.
A joystick driver for the standard two buttons joypad is available.
No mouse drivers are currently available for the Supervision.
No communication port drivers are currently available for the Supervision.
The existing library for the Supervision doesn't implement C file
I/O. There are even no hacks for the
To be more concrete, this limitation means that you cannot use any of the following functions (and a few others):
This software is provided 'as-is', without any expressed or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: