Re: A92: Hardware Graylevels & Interrupts
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Re: A92: Hardware Graylevels & Interrupts
How can I decrease the updates of the screen? (with the timer?)
I wasn't able to use the HeapFree Function with the 92+ yet.(problems with
compilation) The same program runs perfectly on Fargo II.
I need the Function to build a (two) Virtual Screen, which is bigger than
the normal screen size to provide up & down scrolling in the game.
Has any body figured out the interrupt adress of the viewscreen port?
TImeless Software
Klaus Lukaschek
lukas1@xpoint.at
-----Ursprüngliche Nachricht-----
Von: Hmlacage@aol.com <Hmlacage@aol.com>
An: assembly-92@lists.ticalc.org <assembly-92@lists.ticalc.org>
Datum: Sonntag, 09. August 1998 19:40
Betreff: Re : A92: Hardware Graylevels & Interrupts
>
>Dans un courrier daté du 09/08/98 13:03:26 , vous avez écrit :
>
>> the
>> really good and interesting guide from Mathieu (tutorial.zip)
>
>Please, download 92guide.zip which is the last version...
>
>> There it says that I can use 2 Virtual Screens to bypass that problem.
>> My question is now: Can I use that on my Grayscale-Game, too ?
>> If so, how?
>
>First, thank you...
>
>Then, on your grayscale graphics problem, i think that it is not realistic
to
>hope to build two grayscale screens set...
>A better solution which would be however time consuming ( as a developping
>time ) would be to write a build in grayscale system so that the switching
>between palnes is not made by the interrupts but by your program and the
>calculus on your pictures is made between two updates of the planes...
Rather
>difficult also... I cannot imagine how to do otherwise.
>However, are you sure that the flickereing comes from this problem ? There
are
>many other causes to this ( i don' t know them.. I just know that sometimes
it
>solves the problem... )
>
>Sorry, Mathieu, <hmlacage@aol.com<
>
>