Re: Hires screen clear

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From	mmphosis <mmphosis@macgui.com>
Newsgroups	comp.sys.apple2
Subject	Re: Hires screen clear
Date	Thu, 22 Oct 2015 06:29:52 +0000 (UTC)
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And, I've heard that Applesoft BASIC is slow! ;)

REM GENERATE CODE $0300 (768)
REM   FOR FAST, BIG, TOP TO BOTTOM
REM   HIRES SCREEN CLEAR ROUTINE
REM   SIZE: $BE (190)
REM   INPUT: PAGE $E6 (230)

REM CLEAR HIRES SCREEN $15E8 (5608)
REM   SIZE: $5A09 (23049) HGR
REM   SPEED: 4 CYCLES PER HIRES BYTE. UNROLLED ALL THE WAY!
REM   INPUTS:
REM     EVEN BYTE $1539 (5609)
REM     ODD BYTE $153B (5611)

HGR : CALL 768: REM GENERATE CODE FOR HGR
POKE5609,0:POKE5611,0:CALL5608:REM BLACK
POKE5609,85:POKE5611,42:CALL5608:REM VOILET
POKE5609,42:POKE5611,85:CALL5608:REM GREEN
POKE5609,213:POKE5611,170:CALL5608:REM BLUE
POKE5609,170:POKE5611,213:CALL5608:REM ORANGE
POKE5609,127:POKE5611,127:CALL5608:REM WHITE
HGR2 : CALL 768 : REM GENERATE CODE FOR HGR2

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Hires screen clear John Brooks <jbrooks@blueshiftinc.com> - 2015-10-20 22:53 -0700
  Re: Hires screen clear mwillegal <mike@willegal.net> - 2015-10-21 08:59 -0700
  Re: Hires screen clear fadden <thefadden@gmail.com> - 2015-10-21 09:45 -0700
    Re: Hires screen clear qkumba <peter.ferrie@gmail.com> - 2015-10-21 11:11 -0700
      Re: Hires screen clear qkumba <peter.ferrie@gmail.com> - 2015-10-21 11:29 -0700
        Re: Hires screen clear qkumba <peter.ferrie@gmail.com> - 2015-10-21 11:54 -0700
          Re: Hires screen clear qkumba <peter.ferrie@gmail.com> - 2015-10-21 15:32 -0700
          Re: Hires screen clear qkumba <peter.ferrie@gmail.com> - 2015-10-21 17:53 -0700
    Re: Hires screen clear John Brooks <jbrooks@blueshiftinc.com> - 2015-10-21 21:46 -0700
      Re: Hires screen clear fadden <thefadden@gmail.com> - 2015-10-21 22:11 -0700
        Re: Hires screen clear John Brooks <jbrooks@blueshiftinc.com> - 2015-10-21 23:29 -0700
      Re: Hires screen clear qkumba <peter.ferrie@gmail.com> - 2015-10-21 22:17 -0700
  Re: Hires screen clear Antoine Vignau <antoine.vignau@laposte.net> - 2015-10-21 18:06 -0700
  Re: Hires screen clear mmphosis <mmphosis@macgui.com> - 2015-10-22 03:54 +0000
    Re: Hires screen clear John Brooks <jbrooks@blueshiftinc.com> - 2015-10-21 22:59 -0700
      Re: Hires screen clear mmphosis <mmphosis@macgui.com> - 2015-10-22 06:29 +0000
  Re: Hires screen clear John Brooks <jbrooks@blueshiftinc.com> - 2015-10-23 18:26 -0700

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