C=Hacking

Issue 11 (December 4th, 1995)

Table of Contents

Features

Speed up RAMLink transfers with the Double-DMA Technique

RAMLink Designer Mark Fellows and Technical Editor Doug Cotton of CMD describe a way of using a Commodore REU to increase transfer rates of the CMD RAMLink to one-half the speed of the REU transfer rate.

Doug Cotton, Mark Fellows

The Graphics Toolbox

To add another tool to our toolbox, Stephen details a new algorithm for drawing ellipses. Some improvements to the circle routine in a previous column that will enable it to draw perfect circles of any radius is discussed, as well as details on using logarithms to perform division.

Stephen L. Judd

Design and Implementation of an Advanced Text Editor

Peer into the internal organization and implementation of an advanced text editor/word processor for the ACE environment. Relevant data structure, global variables, display maintenance, text "sloshing", and algorithms for many editing commands are detailed.

Craig S. Bruce

Columns

Hi Tech Trickery

Don't let anyone ever tell you the SID chip is only capable of 4 bit sample playback. George Taylor explains using the digi dithering technique to increase the SID's resolution.

George Taylor

Hacking Graphics

Dig into this overview on how to set up the VIC-II to display Doodle and KOALA format pictures. The two formats are detailed, and similar formats are referenced.

Rick Mosdell

Departments

The (cough,cough) Hacking Editor

Jim Brain

Input/Output

Newsfront

Hacking the Mags

UseNuggets

Hack Surfing

Commodore Trivia

Jim Brain

? DS, DS$: rem The Error Channel

The Next Hack

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