Short newbie question: is this the correct way to fill an area with a static value?

[pushead]

Hi,

Another newbie question:

I need to fill a large rectangular area with some static value. So, this is more or less the same as clearing the screenbuffer, but instead of filling with 0's I need to fill with a static value.

What I have done (and actually looks like working?) is based on the code snippet from Photon of Scoopex "Clearing the screen buffer" (
http://coppershade.org/articles/Code...Dream_in_Code/), but I've done a few changes to this code:

1) I've changed the word in BLTCON0 from $0100 to $01F0. This is because I want what's in source A to copied to destination D.

2) I've set my wanted static data word in BLTADAT

This seems to work very nice, but is this the "correct" (or smartest) way to fill an area with some static data? I've not enabled the source A channel, but if I understand the HW reference manual the blitter will repeat the value that is set in BLTADAT when it's not enabled?

[DanScott]

Yes, this looks like the way I'd do it. Have the word you want to fill memory with in BLTADAT, and set D=A minterms, with channel A disabled.

[pushead]

Originally Posted by DanScott

Yes, this looks like the way I'd do it. Have the word you want to fill memory with in BLTADAT, and set D=A minterms, with channel A disabled.

OK! Good to hear! Thanks!