Written for the C64 magazine Commodore Zone by Jason under the alias of "Ferris", the Hex Files (known originally as "Coder At Work" until Kenz renamed it for the X-Files special issue) is a beginners' course in Commodore 64 machine code and later graphics handling.

The original articles were molded around Turbo Assembler but his version has been re-written with cross assembly and C64Asm in particular. These articles were designed to be read one at a time and digested, it's suggested that they're followed in the same way on the web with the mini challenges at the end of each piece attempted before moving on.

HEX FILES - PART 1 [by Jason / added 18 Jan 2004]
A slow introduction to some basic concepts and machine code commands.

HEX FILES - PART 2 [by Jason / added 18 Jan 2004]
Introducing the concept of loops, labels and using the assembler.

HEX FILES - PART 3 [by Jason / added 23 Jan 2004]
Some expansion on loops, a very simple scroll routine and introducing the raster.

HEX FILES - PART 4 [by Jason / added 28 Jan 2004]
The first part of the dissection of a simple sprites and scroll demo with music.

HEX FILES - PART 5 [by Jason / added 28 Jan 2004]
The second part of the dissection of a simple sprites and scroll demo with music.

HEX FILES - PART 6 [by Jason / added 28 Nov 2004]
A quick introduction to raster interrupts and some of their uses.

HEX FILES - PART 7 [by Jason / added 28 Nov 2004]
A more detailed breakdown of some of the VIC-II registers and what can be done with them.

HEX FILES - PART 8 [by Jason / added 11 Mar 2006]
Bitmapped images, the Vidcom file format and how to display a picture.

HEX FILES - PART 9 [by Jason / added 01 Jul 2007]
And now for something completely different, as Hex Files starts to look at game code.