BBC Master ET - mame (0280) machine

MAME: 0280 - Released: 2025-08-29T22:26:57 - Lists: 731 - Software: 139884 - rom: 235974 - disk: 11384

machine

• XML • JSON • AO

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
bbcmet	acorn/bbcm.cpp		no	no	no	yes	BBC Master ET	1986	Acorn Computers	bbcm	bbcm

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	640	512	25.040064	16000000	1024	0	640	624	0	512	no

driver

status	emulation	savestate	requiresartwork	unofficial	nosoundhardware	incomplete	cocktail
imperfect	good	unsupported	no	no	no	no

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
mos400.ic24	65536	81729034	d4bc2c7f5e66b5298786138f395908e70c772971	rom	20000	good	no
mos400.cmos	50	fff41cc5	3607568758f90b3bd6c7dc9533e2aa24f9806ff3	rtc	e	baddump	no

chip

type	tag	name	clock
cpu	maincpu	GTE G65SC12	2000000
audio	mono	Speaker
audio	sn	SN76489A	4000000

device_ref

name
g65sc12
ipt_merge_any_hi
ram
screen
palette
saa5050
hd6845s
ls259
mos6522
bbcm_kbd
speaker
sn76489a
mc146818
mc6854
econet
econet_slot
electron_cartslot
electron_cartslot
bbc_romslot16

sound

channels
1

feature

type	status	overall
graphics	imperfect

ramoption

name	default
128K	yes

device, instance

type	tag	interface	fixed_image	mandatory	name	briefname
cartridge	cartslot1	bbcm_cart			cartridge1	cart1
cartridge	cartslot2	bbcm_cart			cartridge2	cart2
romimage	romslot8	bbc_rom			romimage	rom

device, extension

type	tag	interface	fixed_image	mandatory	extension_names
cartridge	cartslot1	bbcm_cart			rom, bin
cartridge	cartslot2	bbcm_cart			rom, bin
romimage	romslot8	bbc_rom			rom, bin

input

players	coins	service	tilt
1		no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3	reqbuttons
keyboard		92		no

port, analog

port_tag	analog_masks
:BBCCONFIG
:kbd:BREAK
:kbd:COL0
:kbd:COL1
:kbd:COL10
:kbd:COL11
:kbd:COL12
:kbd:COL13
:kbd:COL14
:kbd:COL15
:kbd:COL2
:kbd:COL3
:kbd:COL4
:kbd:COL5
:kbd:COL6
:kbd:COL7
:kbd:COL8
:kbd:COL9

slot, slotoption

slot_name	slotoption_name	slotoption_devname	slotoption_default
econet	e01s	econet_e01s	no
econet	e01	econet_e01	no
cartslot1
cartslot2
romslot8	ram	bbc_ram	no

configuration

Monitor

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Monitor	BBCCONFIG	3	BBCCONFIG	8	eq	0

setting

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Colour	0	yes
B&W	1	no
Green	2	no
Amber	3	no

Econet

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Econet	BBCCONFIG	4

setting

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	4	no

VideoNuLA

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
VideoNuLA	BBCCONFIG	8

setting

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	8	no