Power Of 2 by JAC!

Power Of 2 by JAC! [web]

screenshot added by JAC! on 2010-10-16 18:57:07

platform :	Atari XL/XE Atari XL/XE
type :	32b 32b
release date :	october 2010

popularity : 56%

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alltime top: #14201

JAC! [code]

added on the 2010-10-16 18:57:07 by JAC!

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As some may already have notice, I love to port things to my Atafri. This one is obviously inspired by sierp2 of course. Thanks to Ruelle, I really love this kind of mathematical beauty.

Note: Atari's executable format leaves you with 26 bytes of code for this ;-)

Code:


*	= $2000

start
	lda #8		;Graphics 8 hires mode
	jsr $ef9c	;Illegal entry point in REV C OS, returns with C=1
loop 	ldy #0		;Current line
 	lda (88),y
 	ror		;Rotate into carry bit
 	eor (88),y
 	ldy #40		;Next line
 	sta (88),y
 	inc 88
 	bne loop
 	inc 89
 	dec $53		;RMARGIN is initialized to 39 by the OS
 	bne loop
 			;There will be BRK, so the system will stop

added on the 2010-10-16 19:26:56 by JAC!

nice

rulez added on the 2010-10-16 23:42:46 by insane