T•Rex aka First Attempt at 6507

[chavert]

[Secamline]

I see you're usign a PAL system, should I make a version compatible with PAL and SECAM?

[chavert]

ok, for pal version .please

[Secamline]

I've added a PAL version, I'd say it's better to play with the difficulty set on A with this one since the game's slower.

[+SpiceWare]

I've added a PAL version, I'd say it's better to play with the difficulty set on A with this one since the game's slower.

 

 

Instead of PAL make it PAL60, then the game speed will be the same. PAL60 = PAL color values with NTSC timing. For testing in Stella just hit CONTROL-F a few times until you see PAL60:

 

That's a temporary change, to make it permanent do this:

• hit TAB
• click on GAME PROPERTIES
• click on DISPLAY
• click on FORMAT
• select PAL60
• click OK
• click on EXIT MENU
• press CONTROL-R to reload game

 

 

For permanent that's just for that specific build of the ROM, if you make a change you'll have to do it again.

[Secamline]

But games won't run at 60 fps on a regular European VCS, right?

[+SpiceWare]

they will - for the 2600 the game code controls frame rate, not the console.

 

http://atariage.com/forums/topic/193459-pal60-roms

[Secamline]

So if I just replace the colours with their PAL counterparts, and keep the number of scanlines at 262, a real PAL hardware will display the game in full screen, at 50 fps? (I'd like to try it by myself but I don't own a harmony cart)

[chavert]

I've added a PAL version, I'd say it's better to play with the difficulty set on A with this one since the game's slower.

 

thanks

[+nanochess]

So if I just replace the colours with their PAL counterparts, and keep the number of scanlines at 262, a real PAL hardware will display the game in full screen, at 50 fps? (I'd like to try it by myself but I don't own a harmony cart)

No, it will be PAL60 and will look right.

 

For PAL50 your kernel needs to be adapted to 312 lines, typically making longer the delay after active screen.

[+SpiceWare]

So if I just replace the colours with their PAL counterparts, and keep the number of scanlines at 262, a real PAL hardware will display the game in full screen, at 50 fps? (I'd like to try it by myself but I don't own a harmony cart)

 

 

Yep, though it'll be full screen at 60 fps. Apparently PAL TVs are just fine with that. On the flip side, NTSC TVs are not normally fine with 50 fps - though I use a C= 1084S which can handle both NTSC and PAL frame rates without any problem. I would often boot my Amiga 2000HD in PAL mode for the increase in screen resolution.

 

In 2006 for my first homebrew, Medieval Mayhem, I went the 312 scanline route for PAL. I even had separate speed tables for 50 fps so the game would play the same, but a few years later there were some reviews commenting about "wasted space" on the screen, so I built a PAL60 version. All of my later homebrews have been PAL60.

[Secamline]

Okay! So I changed the file again, this time the game has the correct PAL color values and it runs at 60 fps, so if I got it right, it should be displayed in fullscreen on a european CRT TV.