#171 Incorrect aspect ratio in Blasteroids and NinjaWarriors

[Anonymous]

Aspect ratio is screwed in two games I noticed yet.

Blasteroids is half the width it should be (turning aspect
ratio flag off solves the problem for this game, on 4:3
NTSC TVs).

The Ninjawarriors is half the height it should be.

Other games like PunchOut! work just fine so I believe
this bug is game specific and not "screen ratio
calculation" related.

I reproduced this with 0.79.1b (first version I tried),
0.84.1b and 0.84.2b.

In case it matters, the same ROMs work just fine in the
windows version (MAME32 0.84 and earlier).

Please confirm if this is a general bug or if it's just my
config.

Keep up the excellent work! :)