Written and Maintained by Gregory Nacu
 

NEWS, EDITORIALS, REFERENCE

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December 5, 2017Software

The Big 5 Oh

November 24, 2017Software

BASIC Wedge Programs

November 22, 2017Hardware

3D Printed Components

November 15, 2017Technical Deep Dive

Anatomy of a Koala Viewer

October 31, 2017Programming Theory

Passing Inline Arguments

October 23, 2017Technical Deep Dive

How the C64 Keyboard Works

October 18, 2017Programming Theory

A C64 OS App's Start Of Life

September 26, 2017Hardware

New C64c Cases Available

September 18, 2017Programming Theory

Organizing a Big Module

September 11, 2017Programming Theory

Toolkit Introduction

August 15, 2017Programming Theory

Organizing Module Layout

August 4, 2017Programming Reference

6502 / 6510 Instruction Set

August 4, 2017Programming Reference

Commodore 64 PETSCII Codes

August 3, 2017Programming Reference

Commodore 64 Screen Codes

August 1, 2017Programming Theory

Base Conversion in 6502 (2/2)

July 21, 2017Hardware

Commodore Logo Mark Patch

July 5, 2017Programming Theory

Object Orientation in 6502

June 30, 2017Programming Theory

Base Conversion in 6502 (1/2)

June 20, 2017Software

Huge Site Update

June 5, 2017Software

Recursive File Copier in BASIC

May 29, 2017Technical Deep Dive

Implementing Factorial in 6502

May 16, 2017Editorial

Review: FREEZE64 Fanzine

May 9, 2017Programming Theory

Pointers in Practice, Menus

May 1, 2017Programming Theory

Loading Sequential Files

April 27, 2017Programming Theory

HomeBase Applications

April 21, 2017Programming Theory

Application Loading

April 6, 2017Programming Theory

Memory Manager Development

March 27, 2017Software

Petscii Art Animation

March 27, 2017Programming Theory

Making Course Corrections, Timers

March 21, 2017Software

PETSCII Art Renderer

March 6, 2017Programming Theory

Code Module Exports Table

March 1, 2017Technical Deep Dive

Recursion and C64 OS's Menu UI (3/3)

February 22, 2017Technical Deep Dive

C-Style Structures in 6502 (2/3)

February 14, 2017Technical Deep Dive

What is a pointer? (1/3)

February 6, 2017Programming Theory

Memory Managed Loader

January 31, 2017Software

Available By RSS

January 30, 2017Programming Theory

The Event Model

January 9, 2017Programming Theory

Organizing a big project

December 20, 2016Software

A Modern Character Set

December 5, 2016Editorial

World of Commodore '16

December 2, 2016Software

Example of an Image Service

December 1, 2016Software

Thoughts About Graphics

November 28, 2016Software

Introducing Ultralight Blogging Platform

November 22, 2016Hardware

Portta S-Video to VGA Review

November 17, 2016Programming Theory

A Hybrid Memory Manager

November 10, 2016Programming Theory

A Few Thoughts About Memory Management

November 7, 2016Hardware

A Workstation Stand

October 20, 2016Technical Deep Dive

Why PETSCII anyway?

October 19, 2016Technical Deep Dive

Introducing the Kernal rom

October 19, 2016Hardware

New C64 Cases

Featured Posts

C64OS.com has grown to be more than just a blog about one developer's progress, it is becoming a resource to surround and support a type of C64 user that wants to benefit from the Commodore community and get the most out of modern hardware expansions for their beloved platform.

After writing many posts on the C64 OS weblog, the unfortunate reality is that some of my best work gets lost in the stream of news and developments. Be sure not to miss these full–length editorial reviews:

May 16, 2017Editorial

Review: FREEZE64 Fanzine

December 5, 2016Editorial

World of Commodore '16

Programming Reference

August 4, 2017Programming Reference

6502 / 6510 Instruction Set

August 4, 2017Programming Reference

Commodore 64 PETSCII Codes

August 3, 2017Programming Reference

Commodore 64 Screen Codes

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Recent Posts

December 5, 2017Software

The Big 5 Oh

November 24, 2017Software

BASIC Wedge Programs

November 22, 2017Hardware

3D Printed Components

November 15, 2017Technical Deep Dive

Anatomy of a Koala Viewer

October 31, 2017Programming Theory

Passing Inline Arguments

October 23, 2017Technical Deep Dive

How the C64 Keyboard Works

October 18, 2017Programming Theory

A C64 OS App's Start Of Life

September 26, 2017Hardware

New C64c Cases Available

September 18, 2017Programming Theory

Organizing a Big Module

September 11, 2017Programming Theory

Toolkit Introduction

August 15, 2017Programming Theory

Organizing Module Layout

August 4, 2017Programming Reference

6502 / 6510 Instruction Set

August 4, 2017Programming Reference

Commodore 64 PETSCII Codes

August 3, 2017Programming Reference

Commodore 64 Screen Codes

August 1, 2017Programming Theory

Base Conversion in 6502 (2/2)

July 21, 2017Hardware

Commodore Logo Mark Patch

July 5, 2017Programming Theory

Object Orientation in 6502

June 30, 2017Programming Theory

Base Conversion in 6502 (1/2)

June 20, 2017Software

Huge Site Update

June 5, 2017Software

Recursive File Copier in BASIC

May 29, 2017Technical Deep Dive

Implementing Factorial in 6502

May 16, 2017Editorial

Review: FREEZE64 Fanzine

May 9, 2017Programming Theory

Pointers in Practice, Menus

May 1, 2017Programming Theory

Loading Sequential Files

April 27, 2017Programming Theory

HomeBase Applications

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