[Coco] Mary's arcade game nearing release (Roger Taylor)

Bob Devries devries.bob at gmail.com
Sun Jan 6 23:15:29 EST 2008

Roger, I found that any games that did not automatically use 50Hz mode, 
could be changed by setting that bit in the $FF98 reg. Everything else 
seemed to work ok. Time will tell.

Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Roger Taylor" <operator at coco3.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Monday, January 07, 2008 2:01 PM
Subject: Re: [Coco] Mary's arcade game nearing release (Roger Taylor)

> At 08:47 PM 1/6/2008, you wrote:
>>Roger, when you create the 50Hz PAL version, don't forget to set the 50Hz 
>>bit in the GIME register $FF98 (bit 3), or the programme will scroll madly 
>>on my CM-8 monitor.
>>The above problem was a real hassle when OS9 level 2 came to Australia. It 
>>wasn't modified for 50Hz, and for those who had monitors or televisions 
>>which had no adjustment for that, it was a no-go. Then some idiot in Tandy 
>>came up with a patch to REL, but the patch didn't verify the module, so it 
>>became impossible to cobbler a new disk from it. Grrr.
> Ok this is going to require an extra two menu lines since I want to 
> finalize one version of the game.  How do you run other CoCo games for 
> DOS?
> I might just use 5) and 6) options in the main title screen to toggle 
> those modes.  Anything else required besides just setting the GIME bit?
> And if I'm right 50hz is slower, right?  :)
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