Open Transport Tycoon DS Released

Here it is, the very first sneak peak at my Nintendo DS port. While it looks pretty much the same as the last screenshots I posted, a lot has changed internally and it is running much smoother now. Through the elimination of the wasteful _chatmessage_backup (a 440KB global variabl ) it is now possible to load bigger maps, up to 128x256.

Other notable changes are:
- based on r11844
- maps up to 256x128 running (but saving only works for 64x64 right now)
- saving and loading works
- in openttd.cfg you can define a path where your data resides
- loading time greatly reduced from 45 seconds to 15 seconds
- rewritten the blitter to free 96KB of main RAM

Some serious bugs still remain:
- pathfinder crashes
- open road station gui, then click on road depot icon -> crash
- station gui crashes / not displayed correctly

To get it running you probably need to DLDI patch it. I have a R4DS card which takes care of patching by itself. Please report any bugs / hardware issues here.

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