KickC Compiler for the OSI C1P (6502)

A beginner-friendly C development environment for the OSI C1P and compatible 6502-based systems.

This project adapts the excellent KickC optimizing C compiler to make C programming on the OSI platform easier and more accessible. The focus is on providing a ready-to-use development environment that works immediately without requiring complex configuration.

Project Status: This project is not planned for active maintenance, but contributions and improvements are welcome.

Features

• Optimizing C compiler for the 6502 CPU family
• OSI C1P-specific support
• Preserves Zero Page usage
• Support for 32 and 64 column displays
• OSI color support
• RAM positioning options
• RAM usage control
• Integrated graphical compiler interface
• Emulator launches from the IDE
• Assembly code inspection
• Automatic generation of LOD and PRG files
• Four example programs included

Compared to many other 6502 C compilers, KickC generates compact and efficient assembly code while remaining easy to use.

Based On

This project is based on the KickC optimizing C compiler for the 6502 processor family.
Gitlab link: https://gitlab.com/camelot/kickc
The original KickC project has not been maintained for several years.
This project contains just an OSI adaptation.

Project Layout

The project includes modifications to existing files:

• conio.c
• stdlib.c

New OSI-specific files include:

• conio-c1p.c
• c1p.h
• c1p-keyboard.h
• mos6850.h

Installation

Required Folder Location
Currently, the complete working environment must be placed in the following directory:

D:\OSI_kickc\

This location is currently required by the supplied tools.

Starting the IDE

Run:
D:\OSI_kickc\KickC_jfe.exe

This launches the JFE graphical editor and compiler interface.

Opening a Project

Inside the IDE:
 File
|
+-- Last Opened Workspace

Open the supplied workspace examples to begin working.

Using the IDE

The toolbar provides several useful commands.

Compile
Compiles the current project.

W_Osi
Starts the compiled program directly in the emulator.

Convert
Generates:

• .LOD
• .PRG

files.

ASM
Displays the generated assembly output from the compiler.

Included Examples

The repository contains four example programs that demonstrate how to write software for the OSI C1P using this compiler.
These are recommended as a starting point for new users.

OS/65D

The compiler should also work with OS/65D after selecting the appropriate project settings.
This functionality has not yet been fully tested, so feedback from users is appreciated.

Goals

The primary goal of this project is to make programming the OSI C1P in C as easy as possible.

The development environment is intended to work "out of the box" so that beginners can begin writing programs immediately instead of spending time configuring tools.
Future community contributions may include:

• OS/65D support
• Additional libraries
• New hardware drivers
• Example programs
• Documentation improvements
• Bug fixes

Contributing

Contributions are welcome.
Although this project is not expected to receive continuous active development, improvements from the community are encouraged.
Examples of useful contributions include:

• New example programs
• Additional OSI libraries
• Documentation improvements
• Bug fixes
• Support for additional OSI hardware
• OS/65D enhancements
• Performance improvements

Reporting Issues

If you discover:

• incorrect documentation
• broken examples
• compatibility problems

please post a notification

License

Jfe Jens file editor Copyright (c) 2010

KickC Compiler MIT License

Copyright (c) 2017 Jesper Gravgaard

Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE. If you are the copyright holder, choosing an open-source license such as MIT or BSD will make community contributions easier.

Acknowledgements

Special thanks to the original KickC project for providing an excellent optimizing compiler for the 6502 processor family.
This repository extends its features specifically at the OSI C1P platform and its users.

Snake

 Download
kickC compiler & editor

OSI colors