Re: NES - Apple Sprite card

[Yves McDonald <""yves.mcdonald\"@NO SPAM sympatico.ca>]

Roy,

You will find TMS9918A datasheet (in PDF format) at the following 
address, along with other 8-bit interface chips (ex: 8255):

http://sites.uol.com.br/lsturaro/datasheet.html

I have the databook from TI on that family of video controllers as well 
but I'm not sure where it is nor if I decided to throw it away when I 
moved.  I hope I didn't ;-).

Are there any  6502 code samples for that chip?  I'd like to try my card 
but I want to make sure I have a working program instead of developping 
software on hardware of unknown state.  I threw away Ciarcia's article 
on that chip a long time ago.  Dang :-(


Thanks,

Yves



> My manual on the 9918 is out on loan at the moment, but I thought the 
> lowest level was a pixel-mapped layer.
>
> Certainly, if you did a graphic image in BASIC on either the TI or the 
> Coleco, sprites were never used. The ADAM's BASIC had exactly the same 
> commands as AppleSoft, so that any graphics work done in AppleSoft (that 
> didn't use Peeks or Pokes of course) could be done on the ADAM.
>
> Many a time I typed in Apple programs from Family Computing on my ADAM 
> and had they look exactly the same as the picture of the Apple version. 
> Or, if machine lanugage was used, the same program with different data 
> statements.
>
> Roy