ATTRACT.XEX, BY ATRACT. MIT LICENCE: ITS SOURCE.
A RAINBOW THAT WRITES 0 TO LOCATION 77 ON EVERY SCAN LINE, SO IT NEVER SLEEPS. THE SITE DREW THIS PICTURE BY RUNNING IT, AS THE GALLERY WILL DRAW EVERY PROGRAM'S.
LOCATION 77 ($4D). MAKING STUFF FOR THE 8-BIT ATARI, WITH OPEN TOOLS. OPENING SOON AT ATRACT.ORG.
READY
ATTRACT.XEX, BY ATRACT. MIT LICENCE: ITS SOURCE.
A RAINBOW THAT WRITES 0 TO LOCATION 77 ON EVERY SCAN LINE, SO IT NEVER SLEEPS. THE SITE DREW THIS PICTURE BY RUNNING IT, AS THE GALLERY WILL DRAW EVERY PROGRAM'S.
ON AN 8-BIT ATARI, MEMORY LOCATION 77 IS CALLED ATRACT. THE OPERATING SYSTEM ADDS ONE TO IT EVERY FOUR SECONDS OR SO, AND ANY KEY PRESS PUTS IT BACK TO 0. WHEN IT PASSES 127, NOBODY HAS TOUCHED THE MACHINE FOR ABOUT NINE MINUTES, SO THE OS STARTS SHIFTING THE SCREEN'S COLOURS TO SAVE THE TV FROM BURN-IN. THAT IS ATTRACT MODE, AND THIS SITE IS NAMED AFTER THE BYTE THAT STARTS IT.
IT ALSO SPELLS WHAT YOU DO HERE: ASSEMBLE, TRACE, REVERSE, ANNOTATE, COMMENT, TINKER.
THIS PAGE IS THE SCREEN: ITS COLOURS ARE COLOUR REGISTERS, AND THE COUNTER ABOVE IS THE SAME RULE. POKE 77,128 SHOWS IT NOW. TURN IT ON STARTS A REAL ATARI IN YOUR BROWSER, WITH A FREE OPERATING SYSTEM AND BASIC, AND FROM THEN ON THE PAGE FOLLOWS THE MACHINE'S OWN MEMORY.
DIR D1: EACH ENTRY'S SIZE IN 125-BYTE SECTORS. FOLLOW IT WITH THE ATOM FEED.