How do you get a sprite to fade onto the screen without useing fade command to fade out the entire screen?

SPCOLOR can change the transparency of a sprite I think it would be SPCOLOR ID,RGB(A,255,255,255) inside some sort of loop where ID is the sprite's ID and A is the transparency. 255 is just because you don't want to alter the color of the original (unless you do)

The -80 is the amount of time you want it to take

Thanks!