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Catalogue of Arcade Emulation Software - the Absolute Reference

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X-Arcade

X-Arcade

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sangho.c

0.106u6 [David Haywood]


TODO:

- Each board contains a custom FGPA on a sub-board with a warning "WARNING ! NO TOUCH..." printed on the PCB

- A battery is connected to the underside of the sub-board and if the battery dies the PCB is no-longer functional.

- It is possible that important game code is stored within the battery.

- The ROMs for "Puzzle Star" don't appear to have code at 0 and all boards found so far have been dead.

- The Sexy Boom board was working, but it may only be a matter of time before that board dies too.

- It is thought that these games are based on MSX hardware as some of the Puzzle Star roms appear to be a hacked MSX Bios. If we're lucky then the FGPA may only contain. Sang Ho's MSX simulation, rather than any specific game code.

- The FGPA is labeled 'Custom 3'.

- There is another covered chip on the PCB labeled 'Custom 2' at U17. It is unknown what this chip is.

- Custom 1 is underneath the sub-board and is a UM3567 which is a YM2413 compatible chip.

- the custom chip with the warning appears to control banking etc.


NOTES:

- It is important that this is finished before all the PCBs are dead incase we need anything additional from the boards which can only be retrived while they are in working condition. At this stage it looks unlikely that we will need anything as the battery backed chip appears to control ports+banking.


WIP:

- 0.111u5: Nathan Woods updated the Yamaha V9938 MSX2 video driver to use the new BITMAP_ADDR* macros instead of using the line[] array.

- 0.106u7: Improvements to the Sang Ho driver, making them somewhat playable [David Haywood, Tomasz Slanina].