Acorn 80x25 VDU Interface - 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
acorn_vdu80	devices/bus/acorn/system/vdu80.cpp		no	yes	no	no	Acorn 80x25 VDU Interface

snap

Acorn 80x25 VDU Interface png snap

Acorn 80x25 VDU Interface jpg snap thumbnail

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems
acorn_vdu80	56467	29/12/2025 11:31:15	640	480	71.9836	71.9836	0	Format24bppRgb	770:ICC Profile, 305:MAME 0.200 (July 25 2018)

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
:screen	raster	0	480	250	50.080128	12000000	768	132	612	312	20	270	no

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
80chvdu.ic13	2048	a943f01b	04c326a745ba6a78185ebc2adeecb53a166a6ab3	chargen	0	good	no

device_ref

tag	name
:_tmp:screen	screen
:_tmp:gfxdecode	gfxdecode
:_tmp:palette	palette
:_tmp:mc6845	hd6845s

configuration

Address Selection (RAM/CRTC)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Address Selection (RAM/CRTC)	:LINKS	1

setting

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
A: &1000-&17FF/&1840-&1841	0	yes
B: &F000-&F7FF/&E840-&E841	1	no

LK2: Display Inversion

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
LK2: Display Inversion	:LINKS	2

setting

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	2	no