[模拟新闻]Luca's MAME Drivers (2008/02/02) MAME WIP 更新

XANADU

This is a Japanese puzzle game called Puzzlet (2000) by (I think) Yunizu Corporation.
The gameplay is an original combination of Tetris and Gals Panic, in that you must fit together some shapes on the screen (from the former game), to uncover an erotic image (like in the latter game).
The game suffers from several issues as things stand, and is not playable. However, here are some preliminary screenshots:
About the hardware: while the video chip is an Imagetek 14300, as used in the metro.c driver, the CPU is not a 68000, but an H8/3007. This is a variant of the Hitachi CPU used by the subsino.c games that I worked on a few months back.
Again, to get it to boot I had to add a dozen unemulated instructions, and add support for the different internal registers of the 3007. I also started to implement the slightly different timers of this model.
Despite that, the game does not write to the OKI sound chip (must be the timers), it does not clear the tilemaps properly (hence the corrupt layers), plus it does not populate the tiles table of the 14300 correctly (tile 0 is not transparent).
The images above were in fact taken using a few hacks in the video emulation, and some disabled layers.
Thanks to Guru.