Acorn Electron (64K Master RAM Board)

MAME: 0284 - Released: 2025-12-30T16:33:58 - Machines: 49538 - rom: 367487 - disk: 1392

machine

• XML • JSON • RUN

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
electron64	acorn/electron.cpp		no	no	no	yes	Acorn Electron (64K Master RAM Board)	1987	Acorn Computers / Slogger	electron	electron

snap

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems
electron64	1135	29/12/2025 11:31:20	640	256	96	96	0	Format24bppRgb	305:MAME 0.196 (Mar 27 2018)

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	640	256	50.080128	16000000	1024	0	640	312	0	256	no

driver

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

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
basic.rom	16384	79434781	4a7393f3a45ea309f744441c16723e2ef447a281	mos	0	good	no
os_300.rom	16384	f80a0cea	165e42ff4164a842e56f08ebd420d5027af99fdd	mos	4000	good	no

chip

type	tag	name	clock
cpu	maincpu	MOS Technology 6502	2000000
audio	mono	Speaker
audio	ula	Acorn Electron ULA	16000000
audio	cassette	Cassette
audio	exp:plus3:fdc:0:35dd:flopsndout	Speaker
audio	exp:plus3:fdc:0:35dd:floppysound	Floppy sound	44100

softwarelist

tag	name	status	filter
cass_list	electron_cass	original
cass_list_bbc	bbc_cass	compatible	ELK
cart_list	electron_cart	original
flop_list	electron_flop	original
rom_list	electron_rom	original

device_ref

tag	name
:maincpu	m6502
:irqs	ipt_merge_any_hi
:screen	screen
:palette	palette
:mono	speaker
:ram	ram
:ula	electron_ula
:cassette	cassette_image
:exp	electron_expansion_slot
:exp:plus3	electron_plus3
:exp:plus3:fdc	wd1770
:exp:plus3:fdc:0	floppy_connector
:exp:plus3:fdc:0:35dd	floppy_35_dd
:exp:plus3:fdc:0:35dd:flopsndout	speaker
:exp:plus3:fdc:0:35dd:floppysound	flopsnd
:exp:plus3:fdc:1	floppy_connector
:exp:plus3:exp	electron_expansion_slot
:exp:plus3:exp:plus1	electron_plus1
:exp:plus3:exp:plus1:irqs	ipt_merge_any_hi
:exp:plus3:exp:plus1:centronics	centronics
:exp:plus3:exp:plus1:centronics:printer	centronics_printer
:exp:plus3:exp:plus1:centronics:printer:printer	printer_image
:exp:plus3:exp:plus1:cent_data_out	output_latch
:exp:plus3:exp:plus1:adc	adc0844
:exp:plus3:exp:plus1:analogue	bbc_analogue_slot
:exp:plus3:exp:plus1:analogue:acornjoy	bbc_acornjoy
:exp:plus3:exp:plus1:cart_sk1	electron_cartslot
:exp:plus3:exp:plus1:cart_sk2	electron_cartslot
:cass_list	software_list
:cass_list_bbc	software_list
:cart_list	software_list
:flop_list	software_list
:rom_list	software_list

sound

channels
2

feature

type	status	overall
graphics	imperfect

ramoption

name	default
64K	yes

device, instance

type	tag	interface	name	briefname
cassette	cassette	bbc_cass	cassette	cass
floppydisk	exp:plus3:fdc:0:35dd	floppy_3_5	floppydisk	flop
printout	exp:plus3:exp:plus1:centronics:printer:printer		printout	prin
cartridge	exp:plus3:exp:plus1:cart_sk1	electron_cart	cartridge1	cart1
cartridge	exp:plus3:exp:plus1:cart_sk2	electron_cart	cartridge2	cart2

device, extension

type	tag	interface	extension_names
cassette	cassette	bbc_cass	wav, flac, csw, uef
floppydisk	exp:plus3:fdc:0:35dd	floppy_3_5	mfi, dfi, mfm, td0, imd, 86f, d77, d88, 1dd, cqm, cqi, dsk, ssd, bbc, img, dsd, adf, ads, adm, adl
printout	exp:plus3:exp:plus1:centronics:printer:printer		prn
cartridge	exp:plus3:exp:plus1:cart_sk1	electron_cart	rom, bin
cartridge	exp:plus3:exp:plus1:cart_sk2	electron_cart	rom, bin

input

players	coins	service	tilt
2		no	no

control

type	player	buttons	reverse	minimum	maximum	sensitivity	keydelta
stick	1	1	yes	0	4095	100	50
keyboard	1	55	no
stick	2	1	yes	0	4095	100	50

port, analog

port_tag	analog_masks
:BRK
:LINE.0
:LINE.1
:LINE.10
:LINE.11
:LINE.12
:LINE.13
:LINE.2
:LINE.3
:LINE.4
:LINE.5
:LINE.6
:LINE.7
:LINE.8
:LINE.9
:MRB
:exp:plus3:exp:plus1:analogue:acornjoy:BUTTONS
:exp:plus3:exp:plus1:analogue:acornjoy:JOY0	4095
:exp:plus3:exp:plus1:analogue:acornjoy:JOY1	4095
:exp:plus3:exp:plus1:analogue:acornjoy:JOY2	4095
:exp:plus3:exp:plus1:analogue:acornjoy:JOY3	4095

slot, slotoption

slot_name	slotoption_name	slotoption_devname	slotoption_default
exp	voxbox	electron_voxbox	no
exp	romboxp	electron_romboxp	no
exp	m2105	electron_m2105	no
exp	ap1	electron_ap1	no
exp	ap6	electron_ap6	no
exp	fbjoy	electron_fbjoy	no
exp	elksd64	electron_elksd64	no
exp	elksd128	electron_elksd128	no
exp	plus1	electron_plus1	no
exp	fbprint	electron_fbprint	no
exp	mc68k	electron_mc68k	no
exp	plus2	electron_plus2	no
exp	sidewndr	electron_sidewndr	no
exp	pwrjoy	electron_pwrjoy	no
exp	mode7	electron_mode7	no
exp	plus3	electron_plus3	yes
exp	rombox	electron_rombox	no
exp:plus3:fdc:1	525qd	floppy_525_qd	no
exp:plus3:fdc:1	35dd	floppy_35_dd	no
exp:plus3:exp	voxbox	electron_voxbox	no
exp:plus3:exp	romboxp	electron_romboxp	no
exp:plus3:exp	m2105	electron_m2105	no
exp:plus3:exp	ap1	electron_ap1	no
exp:plus3:exp	ap6	electron_ap6	no
exp:plus3:exp	fbjoy	electron_fbjoy	no
exp:plus3:exp	elksd64	electron_elksd64	no
exp:plus3:exp	elksd128	electron_elksd128	no
exp:plus3:exp	plus1	electron_plus1	yes
exp:plus3:exp	fbprint	electron_fbprint	no
exp:plus3:exp	mc68k	electron_mc68k	no
exp:plus3:exp	plus2	electron_plus2	no
exp:plus3:exp	sidewndr	electron_sidewndr	no
exp:plus3:exp	pwrjoy	electron_pwrjoy	no
exp:plus3:exp	mode7	electron_mode7	no
exp:plus3:exp	plus3	electron_plus3	no
exp:plus3:exp	rombox	electron_rombox	no
exp:plus3:exp:plus1:centronics	nlq401	nlq401	no
exp:plus3:exp:plus1:centronics	smartboard	centronics_smartboard	no
exp:plus3:exp:plus1:centronics	chessmec	centronics_chessmec	no
exp:plus3:exp:plus1:centronics	samdac	centronics_samdac	no
exp:plus3:exp:plus1:centronics	covox_stereo	covox_stereo	no
exp:plus3:exp:plus1:centronics	adaptator	adaptator_multitap	no
exp:plus3:exp:plus1:centronics	digiblst	cpcdigiblst	no
exp:plus3:exp:plus1:centronics	lx800	lx800	no
exp:plus3:exp:plus1:centronics	jx80	epson_jx80	no
exp:plus3:exp:plus1:centronics	ap2000	ap2000	no
exp:plus3:exp:plus1:centronics	ex800	ex800	no
exp:plus3:exp:plus1:centronics	fx80	epson_fx80	no
exp:plus3:exp:plus1:centronics	rx80	epson_rx80	no
exp:plus3:exp:plus1:centronics	mz1p16	mz1p16	no
exp:plus3:exp:plus1:centronics	covox	covox	no
exp:plus3:exp:plus1:centronics	pl80	comx_pl80	no
exp:plus3:exp:plus1:centronics	lx810l	lx810l	no
exp:plus3:exp:plus1:centronics	p72	p72	no
exp:plus3:exp:plus1:centronics	printer	centronics_printer	yes
exp:plus3:exp:plus1:analogue	quinkey	bbc_quinkey_intf	no
exp:plus3:exp:plus1:analogue	voltmace3b	bbc_voltmace3b	no
exp:plus3:exp:plus1:analogue	micromike	micromike	no
exp:plus3:exp:plus1:analogue	bitstik2	bbc_bitstik2	no
exp:plus3:exp:plus1:analogue	bitstik1	bbc_bitstik1	no
exp:plus3:exp:plus1:analogue	acornjoy	bbc_acornjoy	yes
exp:plus3:exp:plus1:cart_sk1
exp:plus3:exp:plus1:cart_sk2

configuration

MRB Mode

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
MRB Mode	MRB	3

setting

name	value	default
Normal	0	no
Turbo	1	no
64K	2	yes

Acorn Electron (64K Master RAM Board) - mame (0284) machine

machine

snap

display

driver

rom

chip

softwarelist

device_ref

sound

feature

ramoption

device, instance

device, extension

input

control

port, analog

slot, slotoption

configuration

MRB Mode

setting