Re: Lunar Lander on Asteroids. :-)

Ok Clay,

You're the man ...

Now, how does Lunar Lander look with your Asteroids color mod attached?
Blue mountains, red thrust, white stars, green space ships, they are all
magically delicious ... :-)

Clay Cowgill wrote:

> Hee. Hee-hee-hee. :-)
>
> Working!
>
> After fighting with MAME a bit I got all my patches working.
>
> (I think MAME's vector display is a flash-tube-- seems like stuff stays
> on the screen even if the DMAGO isn't being strobed :-) For some
> inexplicable reason MAME also shifts the screen "down" in the Asteroids
> driver (so running LL code on MAME's Asteroids driver results in the
> bottom 1/5th of the screen getting chopped off-- real hardware doesn't
> do that. Beats me.)
>
> So, I now have Lunar Lander running on an Asteroids board with only
> software mods (and a close relative of my CPU Get Well Kit board).
> Button mappings seem OK (Rotate, abort, coins, start, test, etc.).
> LL's self test code is expecting "real" Lunar Lander hardware and dies
> when run on an Asteroids board normally-- I fixed that though and was
> able to verify Dave's test screens (diagonal line, cross hatch, ">",
> intensity, etc.) with the test button strobe.
>
> Apparently when the ROMs are working correctly you see that 8 9 10 11 12
> message in self test (I also get 14 15 21 22 23 24 25 and a bunch of
> others because of the patches apparently). The factory test docs I have
> say something to the effect the you will see the sequence of numbers
> instead of "ROMS OK" if the foreign language ROM is NOT installed.
> (They must have stored the more verbose test mode strings in the third
> Vector ROM.)
>
> Anyone an expert on LL software versions? Seems that one version allows
> the lander to rotate 360 degrees, where the other allows only 180? Or
> did I select a different level or something that allows you 360 degree
> control?
>
> I still need to patch up the sound code, but it all looks OK so far.
> Played a few games with only rotational control and the Abort button.
> That's kinda fun when it doesn't cost quarters to experiment. ;-)
> Without sound patches I've rewritten about 2% of the LL code to run on
> Asteroids. Not too bad...
>
> On to Asteroids Deluxe!
>
> -Clay
Received on Thu Feb 18 14:30:25 1999