HISTORY
FAST SEARCH
Type:
 
Parents and clones:
Romset:

ZX Spectrum 128 - MAME machine

33597
spec128
ZX Spectrum 128
0
1
Game
current
11
0
  Back to search
  Share this page using this link:
SHARE THIS PAGE

GAME SYSTEM CHD BIOS DEVICE PARENT CLONE MECHANICAL SCREENLESS

Main data
Romset and name:
spec128 ZX Spectrum 128
Manufacturer:
Sinclair Research Ltd
Year:
Genre:
Computer
Category:
Computer / Home System
Serie:
-
Driver source:
Language:
-
Similar games:
Input / Controls
Players:
Only one supported
Input:
Keyboard
Buttons / keys:
Coins:
0
Cabinet:
-
Free-play:
Not supported
Rankings
Avarage user rating:
AntoPISA BestGame:
-
MASH All-Time:
-
Video
Display:
352x296@50.021084 Hz, CRT 25kHz
Orientation:
Horizontal
Scrolling:
Unknown
Colors:
-
CPU:
Zilog Z80
Audio
Sound:
Audio chips:
AY-3-8912A PSG, Cassette, Cassette Sound, Filtered 1-bit DAC, Speaker
Romset
First release:
Mess 0.37b1 released on apr-15 2000
Last release:
Mame 0.205 released on dec-26 2018
Clone of:
-
Clones:
Bios:
Not required
Use rom of:
-
Use sample of:
-
Previous romset:
None
New romset:
None
Files
Dump:
GOOD
Required files:
Status
OVERALL:
GOOD
Emulation:
Good
Graphic:
Good
Color:
Good
Sound:
Good
Cocktail:
-
Protection:
Good
Save state:
Unsupported
Additional infos
  • History
  • Info
  • Score
  • PCB
  • Commands
  • Init
  • Driver
  • XML
  • A 32-year-old Computer

    ZX Spectrum 128 © 1986 Sinclair Research, Limited.

    New features included 128 KB RAM, three-channel audio via the AY-3-8912 chip, MIDI compatibility, an RS-232 serial port, an RGB monitor port, 32 KB of ROM including an improved BASIC editor, and an external keypad.

    TECHNICAL
    The appearance of the ZX Spectrum 128 was similar to the ZX Spectrum+, with the exception of a large external heatsink for the internal 7805 voltage regulator added to the right hand end of the case, replacing the internal heatsink in previous versions.

    The Z80 processor used in the Spectrum has a 16-bit address bus, which means only 64 KB of memory can be directly addressed. To facilitate the extra 80 KB of RAM the designers used bank switching so that the new memory would be available as eight pages of 16 KB at the top of the address space. The same technique was also used to page between the new 16 KB editor ROM and the original 16 KB BASIC ROM at the bottom of the address space.

    The new sound chip and MIDI out abilities were exposed to the BASIC programming language with the command PLAY and a new command SPECTRUM was added to switch the machine into 48K mode, keeping the current BASIC program intact (although there is no way to switch back to 128K mode). To enable BASIC programmers to access the additional memory, a RAM disk was created where files could be stored in the additional 80 KB of RAM. The new commands took the place of two existing user-defined-character spaces causing compatibility problems with some BASIC programs.

    The ZX Spectrum 128 had no internal speaker like its predecessors. The sound was produced from the television speaker instead

    TRIVIA
    Code-named 'Derby'. Sinclair developed the ZX Spectrum 128 in conjunction with their Spanish distributor Investrónica. Investrónica had helped adapt the ZX Spectrum+ to the Spanish market after the Spanish government introduced a special tax on all computers with 64 KB RAM or less, and a law which obliged all computers sold in Spain to support the Spanish alphabet and show messages in Spanish.

    The machine was simultaneously presented for the first time and launched in September 1985 at the SIMO '85 trade show in Spain, with a price of 44,250 pesetas. Because of the large number of unsold Spectrum+ models, Sinclair decided not to start selling in the UK until January 1986 at a price of £179.95.

    CONTRIBUTE
    Edit this entry: https://www.arcade-history.com/?&page=detail&id=83040&o=2
    Informations provided by © Alexis Bousiges
    Informations provided by Contribute to the translation
  • Informations provided by
    Informations provided by / © Copyright of Fujix
  • Informations provided by
  • Informations provided by
  • Informations provided by Fabricio Coroquer, revisited from the work of
  • Informations provided by Contribute
  • Informations provided by
  • Informations provided by
Cheats:
Ports:
Devices refs:
Media options:
RAM options:
Software lists:

If you notice any inaccuracy or error, please report

Data updated on december 25 2018


Short name suggestion
The short name is the name of the game without brackets or other symbols, bios or sets informations.
Name:
E-mail:
(optional)
Image removal
You're proposing to remove this image from the web site.
Please indicate below the reason for the request and will be evaluated
as soon as possible.

Reason:
E-mail:
(optional)
Resource reporting
You can report links for further information, images, video or other url about this game.
Carefully fill out the fields below in such a way as to minimize the time required for the integration of this information in the page.
Link:
Resource type:
Title:
Notes:
E-mail:
(optional)
Game initialization (gameinit)
These data are used to solve any problems starting the game in Mame.
The specified text will be sent to the site ProgettoSnaps by AntoPISA and integrated with the existing one.
Updates are scheduled on a monthly basis so except in special cases you may not immediately see the changes.
Romset:
spec128
Title:
ZX Spectrum 128
Text:
E-mail:
(optional)
Share page
Report this game to a friend, with optional additional message.
Game:
ZX Spectrum 128
Recipient:
Message:
From:
Create e new list
You can create a new private list, visible only to you, that will allow you to group, view or do other operations on your favorite games.
Title:
Notes:
 

You can create a list using an existing file. In this case, please indicate below.

Import from:
Trascina qui un file
XXXXXXXX
Format:
Export to a file
You can export this list of games on a file so that it can be used by external programs

Title:
Format:
Emulator:
Version:
 
This option will add all the linked rom (i.e. parents games in clones games) and all bioses or devices to obtain a working set (no missing files)
Other options
 

 

 

 

 

 

NOTE: You will be prompted to download the file. If this don't occurs, check the popup blocker options of your browser and add this site to the exception list