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Acorn System 4


MAME: 0.278 - Released: 2025-06-28T23:16:39 - Machines: 48574 - rom: 362783 - disk: 1374 - Lists: 721 - Software: 139730 - rom: 236715 - disk: 11374

machine

 ?

namesourcefilesampleofisbiosisdeviceismechanicalrunnabledescriptionyearmanufacturercloneofromofMachineGenreId
acrnsys4acorn/acrnsys.cpp nononoyesAcorn System 41980Acorn Computersacrnsys3acrnsys3Computer / Home System

rom

namesizecrcsha1regionoffsetstatusoptionalmergebios
tosdos-s3.ic740969b1fbec44cb322dadcfba9c452797d6cc2096f0c92e8792cmaincpu0goodnotosdos-s3.ic7 

chip

typetagnameclock
cpumaincpuMOS Technology 65021000000
audiobus4:fdc:i8271:0:525qd:flopsndoutSpeaker 
audiobus4:fdc:i8271:0:525qd:floppysoundFloppy sound44100
audiobus4:fdc:i8271:1:525qd:flopsndoutSpeaker 
audiobus4:fdc:i8271:1:525qd:floppysoundFloppy sound44100

configuration

nametagmask
Address Selection (RAM)bus1:8k:LINKS7
Address Selection (ROM)bus1:8k:LINKS112
Address Selection (RAM)bus2:8k:LINKS7
Address Selection (ROM)bus2:8k:LINKS112

control

typeplayerbuttonswaysreverseminimummaximumsensitivitykeydeltaways2ways3reqbuttons
keyboard 62 no       

device

typetaginterfacefixed_imagemandatory
romimagebus1:8k:rom0acrnsys_rom  
romimagebus1:8k:rom1acrnsys_rom  
romimagebus2:8k:rom0acrnsys_rom  
romimagebus2:8k:rom1acrnsys_rom  
floppydiskbus4:fdc:i8271:0:525qdfloppy_5_25  
floppydiskbus4:fdc:i8271:1:525qdfloppy_5_25  

device_ref

name
m6502
ipt_merge_any_hi
ins8154
acrnsys_kbd
ay34592
acorn_bus
acorn_bus_slot
acorn_8k
generic_socket
generic_socket
acorn_bus_slot
acorn_8k
generic_socket
generic_socket
acorn_bus_slot
acorn_vdu40
screen
palette
hd6845s
saa5050
acorn_bus_slot
acorn_fdc
i8271
floppy_connector
floppy_525_qd
speaker
flopsnd
floppy_connector
floppy_525_qd
speaker
flopsnd
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
acorn_bus_slot
software_list
software_list

display

tagtyperotatewidthheightrefreshpixclockhtotalhbendhbstartvtotalvbendvbstartflipx
bus3:vdu40:screenraster048025050.2411581200000076813261231120270no

driver

statusemulationsavestaterequiresartworkunofficialnosoundhardwareincompletecocktail
goodgoodsupportednonoyesno 

input

playerscoinsservicetilt
1 nono

port

tag
:bus1:8k:LINKS
:bus2:8k: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

name
bus1
bus1:8k:rom0
bus1:8k:rom1
bus2
bus2:8k:rom0
bus2:8k:rom1
bus3
bus4
bus4:fdc:i8271:0
bus4:fdc:i8271:1
bus5
bus6
bus7
bus8
bus9
bus10
bus11
bus12
bus13

softwarelist

tagnamestatusfilter
flop_listacrnsys_floporiginal 
rom_listacrnsys_romoriginal 

sound

channels
2


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