HP 9831A - 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
hp9831	hp/hp9825.cpp		no	no	no	yes	HP 9831A	1977	Hewlett-Packard

snap

HP 9831A png snap

HP 9831A jpg snap thumbnail

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems
hp9831	670	29/12/2025 11:31:24	640	16	96	96	0	Format24bppRgb	305:MAME 0.251.0 (Dec 25 2022)

driver

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

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
9831sys.bin	24576	2f92e685	413aa65677ab0d6b5979af6c9da12c1368abcc82	cpu	0	good	no

chip

type	tag	name	clock
cpu	cpu	Hewlett-Packard HP-09825-67907	6000000
audio	mono	Speaker
audio	beeper	Beep	1400

softwarelist

tag	name	status	filter
optrom_list	hp9831_rom	original

device_ref

tag	name
:cpu	09825_67907
:io_sys	hp98x5_io_sys
:cursor_timer	timer
:kb_timer	timer
:tape	hp9825_tape
:tape:drive	hp_dc100_tape
:tape:short_tmr	ttl74123
:tape:long_tmr	ttl74123
:prt_timer	timer
:mono	speaker
:beeper	beep
:beep_timer	timer
:slot0	hp98x5_io_slot
:slot1	hp98x5_io_slot
:slot2	hp98x5_io_slot
:drawer0	hp9825_optrom
:drawer0:rombank	address_map_bank
:drawer1	hp9825_optrom
:drawer1:rombank	address_map_bank
:drawer2	hp9825_optrom
:drawer2:rombank	address_map_bank
:drawer3	hp9825_optrom
:drawer3:rombank	address_map_bank
:ram	ram
:optrom_list	software_list

sound

channels
1

ramoption

name	default
16K
24K
32K
8K	yes

device, instance

type	tag	interface	fixed_image	mandatory	name	briefname
microtape	tape:drive				microtape	utap
romimage	drawer0	hp9825_rom			romimage1	rom1
romimage	drawer1	hp9825_rom			romimage2	rom2
romimage	drawer2	hp9825_rom			romimage3	rom3
romimage	drawer3	hp9825_rom			romimage4	rom4

device, extension

type	tag	interface	fixed_image	mandatory	extension_names
microtape	tape:drive				hti
romimage	drawer0	hp9825_rom			bin
romimage	drawer1	hp9825_rom			bin
romimage	drawer2	hp9825_rom			bin
romimage	drawer3	hp9825_rom			bin

input

players	coins	service	tilt
1		no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3
keyboard		105		no

port, analog

port_tag	analog_masks
:KEY0
:KEY1
:KEY2
:KEY3
:KEY_SHIFT

slot, slotoption

slot_name	slotoption_name	slotoption_devname	slotoption_default
slot0	98046	hp98046	no
slot0	98035_rtc	hp98035	no
slot0	98034_hpib	hp98034	no
slot0	98036	hp98036	no
slot0	98032_gpio	hp98032	no
slot1	98046	hp98046	no
slot1	98035_rtc	hp98035	no
slot1	98034_hpib	hp98034	no
slot1	98036	hp98036	no
slot1	98032_gpio	hp98032	no
slot2	98046	hp98046	no
slot2	98035_rtc	hp98035	no
slot2	98034_hpib	hp98034	no
slot2	98036	hp98036	no
slot2	98032_gpio	hp98032	no