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 ######            ######            Issue #11
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       ########                    December 1995

Table of Contents

Features

6. Speed up RAMLink transfers with the Double-DMA Technique by Doug Cotton and Mark Fellows

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.

8. The Graphics Toolbox by Stephen Judd

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.

10. Design and Implementation of an Advanced Text Editor by Craig Bruce

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.

Columns

4. Hi Tech Trickery by George Taylor

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.

12. Hacking Graphics by Rick Mosdell

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.

Departments

1. The (cough,cough) Hacking Editor

2. Input/Output

3. Newsfront

5. Hacking the Mags

7. UseNuggets

9. Hack Surfing

11. Commodore Trivia

13. ? DS, DS$: rem The Error Channel

14. The Next Hack

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Last Updated: 1995-12-4