Mahjong Touryuumon

The WonderSwan needed a riichi mahjong game so here is Mahjong Touryuumon to fill that void.

Debugging#

To enter Swan OS set a breakpoint at 4011:0100 and modify the WORD value at DS:07C4 to 0x04.

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Determine if the Swan OS can be activated without the use of a debugger, ie. search ROM for writes to 0x07C4 with the value 0x04 and go on from there...

Swan OS#

Function

Name	Address
select_init	4177:000A

Press Start to enter the System Menu.

Press X1 or X3 to cycle through the sound effects.

Press A to play a sound effect or B to stop playing a sound effect.

Press A + B + Start to restart.

System Menu#

Press X1 or X3 to nagivate the menu.

Press Start or A to select a menu item.

BG#

Press Start to retun to the System Menu.

BG3#

Press Start to retun to the System Menu.

BG4#

Press Start to retun to the System Menu.

References#