Ryuuha (Japan 871027)

Game Information

manufacturer	Central Denshi
year	1987
clone of	iemoto
other clones	iemotom ryuuha
genre	N/A
downloads	33

Screenshots

Download Details

split set	ryuuha.zip 49.21k
parent set	iemoto.zip 388.22k ↗
standalone set	ryuuha.7z 366.50k

Game Details

Medal game (video) published 38 years ago:

Ryuuha (c) 1987 Central Denshi.

Medal mahjong game.

- TECHNICAL -

Main CPU : Zilog Z80 (@ 5 Mhz)
Sound Chips : General Instrument AY8910 (@ 1.25 Mhz), DAC (@ 1.25 Mhz)

Screen orientation : Horizontal
Video resolution : 512 x 224 pixels
Screen refresh : 60.00 Hz
Palette Colors : 65536

Player : 2

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=3565&o=2

Driver Details

source	nichibutsu/nbmj8688.cpp
status	good
emulation	good
savestate	supported

Screen Details

display	screen
type	raster
orientation	horizontal
width	512px
height	224px
refresh	60mhz

Input Details

player	1
type	mahjong
buttons	26
directions	N/A

player	2
type	mahjong
buttons	26
directions	N/A

Chipset Details

name	Zilog Z80
clock	4.77mhz

name	Speaker
clock	N/A

name	AY-3-8910A PSG
clock	1.19mhz

name	8-Bit R-2R DAC
clock	N/A

ROM Details

name	size	crc
1.4ga	32.00k	2f995640
2.3ga	32.00k	0787d707
3.3i	64.00k	32d71ff9
4.2i	64.00k	06f8e505
5.1i	64.00k	261eb61a
iemoto31.1a	256.00k	ba005a3a
iemoto32.2a	256.00k	fa9a74ae
iemoto33.3a	256.00k	efb13b61
iemoto44.4a	256.00k	9acc54fa
6.5a	64.00k	48710ae3
7.6a	64.00k	9eae7c9e