Denial

Hi, Thanks for further replies. I have now managed to get the bitmap mode working as per everyones input. So now the next job is to get it running in reasonable time as I run out of raster currently with 8 soft sprites on (although i am XOR ing so have to call sprite handler twice), and the ($xx),y ...

Hi, Thanks appreciated. So (and hopefully these aren't silly questions, but I just want to check) : - 1) If I have screen and character generator both start at $1000, then am I right that I would lose a handful of characters from the character set as that's the screen area (64 chars) so my first bit...

Hi, Sorry to have another question, but I have been trying the bitmap things suggested earlier, and I can set $9005 so $1000 to $1fff is the area for the character memory / bitmap data, but I can't work out in my head where to point to the actual screen memory so I can set a matrix of double height ...

Hi,

Thanks to everybody for taking the time to answer. I have a better idea of how it should work now.

D

Hi again, I'll ask one more question and if I can't understand then I will leave it, and apologise to all in advance for any inconvenience as it's clearly a very very skilled task. If the chars are double height, looking at the pixels in the graphics, they don't look double height? they look (to me)...

Thanks for your response Mike. I can't find anything relating to Robert Hurst's "Triple-S" Software Sprite Stack when I search in Google - do you knwo of a link or any links to the info? Also is there any reference about that goes into how the botmap screen would work - I have tried it mys...

Hi, Thanks for your quick response. Looking at the image I attached/jetpac itself, the graphics don't "seem" to be double height looking closely at it paused, so assuming they aren't using double height chars, then its even more voodoo? I admit I am not a very good programmer but I am inte...

Hi, I don't know if anyone can offer any feedback on this, but I was playing 8k jetpac for vic20, and I noticed that the "sprites" seem to be able to overlay each other (I will try attach a picture if it works on here). I looked at jetpac running in WinVice / xvic.exe and viewed memory and...

Hi,

Thanks to all for your responses - appreciated.

Regarding the ski game, thanks for that, I will have a look at the suggestd source.

D

Hello all, I was looking at the scrolling in the exccelent example here : - https://www.youtube.com/watch?v=CgCHzrjT3uE I don't know if this is too open a question for the forum, but is the scrolling achieved using tricks with $9001 / rasters, or is it using a 512 character map from $1000 and writin...