Build Your Own Arcade Controls Forum

Main => Software Forum => Topic started by: FunkyBoss on January 30, 2005, 11:06:26 am

Title: z26 GUI corruption
Post by: FunkyBoss on January 30, 2005, 11:06:26 am

I'm seeing an issue with the z26 emulator where certain games display a series of black lines across the left side of the screen.  Some of the games are Mrs. Pac-Man, Pooyan and Raft Rider.  I tried these in Stella as well and I only see the corruption in Pooyan.  The other 2 games play fine without the black lines.

Is anyone else seeing this too?  Is there some setting I can change to correct it?  I am using an ATI Radeon 9600 video card and have tried all of z26's video modes, and all that work with my monito exibit the same behavior.  The one I have been using on my cabinet is -v7 which is 640x480.

Thanks!

Title: Re: z26 GUI corruption
Post by: jcrouse on January 30, 2005, 01:47:05 pm

Are you using a z26.cli file? Have you tried different video settings and/or the default refresh rate flag in it?

John

Title: Re: z26 GUI corruption
Post by: ryckster on January 30, 2005, 02:05:56 pm

I am no expert, but I think the black lines are normal. The atari had no video buffer so everything had to be drawn realtime on the screen. Programmers used a few clock cycles of this drawing time to make calculations, which resulted in the black lines you see in many a2600 games.

Title: Re: z26 GUI corruption
Post by: DaemonCollector on January 30, 2005, 10:00:52 pm

Yup, many games will have black lines along the edge of the screen, very normal in a lot of 2600 games :)