[stella] Latest version of my new game

[Robert "A." Colbert <colbertb@xxxxxxxxxxxx>]

Hi,
	Well, here is what I have so far.  I have been pretty happy with how this project has been going!  The latest version has the following features added:

			A gun that "rotates" via the joystick
			Background graphics
			Ability to shoot the gun with the fire button
			Ability to have up to 3 shots on screen at once

	This has been tested on PCAE and a real VCS with no problems, but on Stella, it wiggles a little bit upon startup (I think I didn't initialize something correctly), anyway, the wiggling goes away, and I will address that issue shortly.

	I have found an emulation problem with PCAE 2.0 but haven't zeroed in on it yet.  I believe it has to do with the timing of a 6502 instruction when it branches across a page boundry (you need to add 1 cycle), but I haven't found the culprit yet.  My kernel has at least 1 scan line that uses EVERY cycle in it, and if I add code before my kernel (moving the kernel to a higher address) then my screen jumps a scanline occasionally on a real VCS.  On PCAE, the screen is stable.  I will zero in on this problem and let the author of PCAE know about it asap.  At any rate, after a couple hours of pulling my hair out, I got the screen to stay stable on the real 2600 :)

				Take Care,
					Bob

Wanna write a game for the Atari 2600?
Check out http://www.novia.net/~rcolbert

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