Acorn System 3 (6809 CPU) - mame (0284) machine

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
acrnsys3_6809	acorn/acrnsys.cpp		no	no	no	yes	Acorn System 3 (6809 CPU)	1980	Acorn Computers	acrnsys3	acrnsys3

snap

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems
acrnsys3_6809	869	29/12/2025 11:31:15	480	475	96	96	0	Format24bppRgb	305:MAME 0.196 (Mar 28 2018)

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
bus4:vdu40:screen	raster	0	480	250	50.241158	12000000	768	132	612	311	20	270	no

driver

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

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
acorn6809.ic4	2048	5fa5b632	b14a884bf82a7a8c23bc03c2e112728dd1a74896	maincpu	800	good	no
acorn6809.ic11	256	7908317d	e0f1e5bd3a8598d3b62bc432dd1f3892ed7e66d8	proms	0	good	no

chip

type	tag	name	clock
cpu	maincpu	Motorola MC6809	4000000
audio	bus5:cass:mono	Speaker
audio	bus5:cass:cassette	Cassette
audio	bus6:fdc:i8271:0:525qd:flopsndout	Speaker
audio	bus6:fdc:i8271:0:525qd:floppysound	Floppy sound	44100
audio	bus6:fdc:i8271:1:525qd:flopsndout	Speaker
audio	bus6:fdc:i8271:1:525qd:floppysound	Floppy sound	44100

softwarelist

tag	name	status	filter
flop_list	acrnsys_flop	original

device_ref

tag	name
:maincpu	mc6809
:irqs	ipt_merge_any_hi
:via6522	mos6522
:centronics	centronics
:centronics:printer	centronics_printer
:centronics:printer:printer	printer_image
:cent_data_out	output_latch
:kbd	acrnsys_kbd
:kbd:ay34592	ay34592
:bus	acorn_bus
:bus1	acorn_bus_slot
:bus1:8k	acorn_8k
:bus1:8k:rom0	generic_socket
:bus1:8k:rom1	generic_socket
:bus2	acorn_bus_slot
:bus2:8k	acorn_8k
:bus2:8k:rom0	generic_socket
:bus2:8k:rom1	generic_socket
:bus3	acorn_bus_slot
:bus3:8k	acorn_8k
:bus3:8k:rom0	generic_socket
:bus3:8k:rom1	generic_socket
:bus4	acorn_bus_slot
:bus4:vdu40	acorn_vdu40
:bus4:vdu40:screen	screen
:bus4:vdu40:palette	palette
:bus4:vdu40:mc6845	hd6845s
:bus4:vdu40:saa5050	saa5050
:bus5	acorn_bus_slot
:bus5:cass	acorn_cass
:bus5:cass:mono	speaker
:bus5:cass:cassette	cassette_image
:bus5:cass:cass_c	timer
:bus5:cass:cass_p	timer
:bus6	acorn_bus_slot
:bus6:fdc	acorn_fdc
:bus6:fdc:i8271	i8271
:bus6:fdc:i8271:0	floppy_connector
:bus6:fdc:i8271:0:525qd	floppy_525_qd
:bus6:fdc:i8271:0:525qd:flopsndout	speaker
:bus6:fdc:i8271:0:525qd:floppysound	flopsnd
:bus6:fdc:i8271:1	floppy_connector
:bus6:fdc:i8271:1:525qd	floppy_525_qd
:bus6:fdc:i8271:1:525qd:flopsndout	speaker
:bus6:fdc:i8271:1:525qd:floppysound	flopsnd
:bus7	acorn_bus_slot
:flop_list	software_list

sound

channels
3

device, instance

type	tag	interface	name	briefname
printout	centronics:printer:printer		printout	prin
romimage	bus1:8k:rom0	acrnsys_rom	romimage1	rom1
romimage	bus1:8k:rom1	acrnsys_rom	romimage2	rom2
romimage	bus2:8k:rom0	acrnsys_rom	romimage3	rom3
romimage	bus2:8k:rom1	acrnsys_rom	romimage4	rom4
romimage	bus3:8k:rom0	acrnsys_rom	romimage5	rom5
romimage	bus3:8k:rom1	acrnsys_rom	romimage6	rom6
cassette	bus5:cass:cassette		cassette	cass
floppydisk	bus6:fdc:i8271:0:525qd	floppy_5_25	floppydisk1	flop1
floppydisk	bus6:fdc:i8271:1:525qd	floppy_5_25	floppydisk2	flop2

device, extension

type	tag	interface	extension_names
printout	centronics:printer:printer		prn
romimage	bus1:8k:rom0	acrnsys_rom	bin, rom
romimage	bus1:8k:rom1	acrnsys_rom	bin, rom
romimage	bus2:8k:rom0	acrnsys_rom	bin, rom
romimage	bus2:8k:rom1	acrnsys_rom	bin, rom
romimage	bus3:8k:rom0	acrnsys_rom	bin, rom
romimage	bus3:8k:rom1	acrnsys_rom	bin, rom
cassette	bus5:cass:cassette		wav, flac
floppydisk	bus6:fdc:i8271:0:525qd	floppy_5_25	mfi, dfi, mfm, td0, imd, 86f, d77, d88, 1dd, cqm, cqi, dsk, ssd, bbc, img
floppydisk	bus6:fdc:i8271:1:525qd	floppy_5_25	mfi, dfi, mfm, td0, imd, 86f, d77, d88, 1dd, cqm, cqi, dsk, ssd, bbc, img

input

players	coins	service	tilt
1		no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3
keyboard		62		no

port, analog

port_tag	analog_masks
:bus1:8k:LINKS
:bus2:8k:LINKS
:bus3:8k:LINKS
:kbd:SPECIAL
:kbd:X0
:kbd:X1
:kbd:X10
:kbd:X11
:kbd:X12
:kbd:X2
:kbd:X3
:kbd:X4
:kbd:X5
:kbd:X6
:kbd:X7
:kbd:X8
:kbd:X9

slot, slotoption

slot_name	slotoption_name	slotoption_devname	slotoption_default
centronics	nlq401	nlq401	no
centronics	smartboard	centronics_smartboard	no
centronics	chessmec	centronics_chessmec	no
centronics	samdac	centronics_samdac	no
centronics	covox_stereo	covox_stereo	no
centronics	adaptator	adaptator_multitap	no
centronics	digiblst	cpcdigiblst	no
centronics	lx800	lx800	no
centronics	jx80	epson_jx80	no
centronics	ap2000	ap2000	no
centronics	ex800	ex800	no
centronics	fx80	epson_fx80	no
centronics	rx80	epson_rx80	no
centronics	mz1p16	mz1p16	no
centronics	covox	covox	no
centronics	pl80	comx_pl80	no
centronics	lx810l	lx810l	no
centronics	p72	p72	no
centronics	printer	centronics_printer	yes
bus1	vib	acorn_vib	no
bus1	vdu80	acorn_vdu80	no
bus1	vdu40	acorn_vdu40	no
bus1	fdc	acorn_fdc	no
bus1	econet	acorn_econet	no
bus1	cass	acorn_cass	no
bus1	8k	acorn_8k	yes
bus1	32k	acorn_32k	no
bus1:8k:rom0
bus1:8k:rom1
bus2	vib	acorn_vib	no
bus2	vdu80	acorn_vdu80	no
bus2	vdu40	acorn_vdu40	no
bus2	fdc	acorn_fdc	no
bus2	econet	acorn_econet	no
bus2	cass	acorn_cass	no
bus2	8k	acorn_8k	yes
bus2	32k	acorn_32k	no
bus2:8k:rom0
bus2:8k:rom1
bus3	vib	acorn_vib	no
bus3	vdu80	acorn_vdu80	no
bus3	vdu40	acorn_vdu40	no
bus3	fdc	acorn_fdc	no
bus3	econet	acorn_econet	no
bus3	cass	acorn_cass	no
bus3	8k	acorn_8k	yes
bus3	32k	acorn_32k	no
bus3:8k:rom0
bus3:8k:rom1
bus4	vib	acorn_vib	no
bus4	vdu80	acorn_vdu80	no
bus4	vdu40	acorn_vdu40	yes
bus4	fdc	acorn_fdc	no
bus4	econet	acorn_econet	no
bus4	cass	acorn_cass	no
bus4	8k	acorn_8k	no
bus4	32k	acorn_32k	no
bus5	vib	acorn_vib	no
bus5	vdu80	acorn_vdu80	no
bus5	vdu40	acorn_vdu40	no
bus5	fdc	acorn_fdc	no
bus5	econet	acorn_econet	no
bus5	cass	acorn_cass	yes
bus5	8k	acorn_8k	no
bus5	32k	acorn_32k	no
bus6	vib	acorn_vib	no
bus6	vdu80	acorn_vdu80	no
bus6	vdu40	acorn_vdu40	no
bus6	fdc	acorn_fdc	yes
bus6	econet	acorn_econet	no
bus6	cass	acorn_cass	no
bus6	8k	acorn_8k	no
bus6	32k	acorn_32k	no
bus6:fdc:i8271:0	525qd	floppy_525_qd	yes
bus6:fdc:i8271:0	525sd	floppy_525_sd	no
bus6:fdc:i8271:0	525sssd	floppy_525_sssd	no
bus6:fdc:i8271:1	525qd	floppy_525_qd	yes
bus6:fdc:i8271:1	525sd	floppy_525_sd	no
bus6:fdc:i8271:1	525sssd	floppy_525_sssd	no
bus7	vib	acorn_vib	no
bus7	vdu80	acorn_vdu80	no
bus7	vdu40	acorn_vdu40	no
bus7	fdc	acorn_fdc	no
bus7	econet	acorn_econet	no
bus7	cass	acorn_cass	no
bus7	8k	acorn_8k	no
bus7	32k	acorn_32k	no

configuration

Address Selection (RAM)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (RAM)	bus1:8k:LINKS	7

setting

name	value	default
&0000-&1FFF	0	yes
&2000-&3FFF	1	no
&4000-&5FFF	2	no
&6000-&7FFF	3	no
&8000-&9FFF	4	no
&A000-&BFFF	5	no
&C000-&DFFF	6	no
&E000-&FFFF	7	no

Address Selection (ROM)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (ROM)	bus1:8k:LINKS	112

setting

name	value	default
&0000-&1FFF	0	no
&2000-&3FFF	16	no
&4000-&5FFF	32	no
&6000-&7FFF	48	no
&8000-&9FFF	64	no
&A000-&BFFF	80	yes
&C000-&DFFF	96	no
&E000-&FFFF	112	no

Address Selection (RAM)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (RAM)	bus2:8k:LINKS	7

setting

name	value	default
&0000-&1FFF	0	no
&2000-&3FFF	1	yes
&4000-&5FFF	2	no
&6000-&7FFF	3	no
&8000-&9FFF	4	no
&A000-&BFFF	5	no
&C000-&DFFF	6	no
&E000-&FFFF	7	no

Address Selection (ROM)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (ROM)	bus2:8k:LINKS	112

setting

name	value	default
&0000-&1FFF	0	no
&2000-&3FFF	16	no
&4000-&5FFF	32	no
&6000-&7FFF	48	no
&8000-&9FFF	64	no
&A000-&BFFF	80	yes
&C000-&DFFF	96	no
&E000-&FFFF	112	no

Address Selection (RAM)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (RAM)	bus3:8k:LINKS	7

setting

name	value	default
&0000-&1FFF	0	no
&2000-&3FFF	1	no
&4000-&5FFF	2	no
&6000-&7FFF	3	no
&8000-&9FFF	4	no
&A000-&BFFF	5	no
&C000-&DFFF	6	yes
&E000-&FFFF	7	no

Address Selection (ROM)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (ROM)	bus3:8k:LINKS	112

setting

name	value	default
&0000-&1FFF	0	no
&2000-&3FFF	16	no
&4000-&5FFF	32	no
&6000-&7FFF	48	no
&8000-&9FFF	64	no
&A000-&BFFF	80	yes
&C000-&DFFF	96	no
&E000-&FFFF	112	no