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Subject: Aw: Re: Aw: Aw: Re: Aw: Re: Re: [stella] Fortitude I Quadraside From: cybergoth@xxxxxxxx Date: Wed, 9 Jul 2003 15:10:15 +0200 (CEST) |
Hi there!
> >(I think something like that does the starfield in Star Fire...)
> YOU THINK ?????
> Who programed that game ? LOL
> --Happy_Dude
Ah, Ok. I was just too lazy to look it up for sure :-)
Here' the common part that every 2LK iteration of the Star Fire
kernel does at the beginning:
;---------------------------------------------------------
NextLine
STA WSYNC ; Wait for horizontal sync
STA HMOVE ; Horizontal Movement
; Reset stack to RESBL
TXA
LDX #$1F
TXS
TAX
; Draw starfield
LDY vline
CPY yposBackup+2
PHP
CPY yposBackup+1
PHP
CPY yposBackup
PHP
LDA crosshair,Y
STA PF2
;---------------------------------------------------------
That is some ~35 cycles out of the 2*76 available, which already completely handle both missiles, the ball and the PF ;-)
Greetings,
Manuel
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