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Extra Bases

  1. Game infos
  2. Sound
  3. Driver
  4. Inputs
  5. Controls
  6. Display
  7. Configurations
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Serie
  12. Categories
  13. MAMEinfo
  14. History
Download ebases.zip (16 KB)
Snapshot

Game infos

Description Extra Bases
Name ebases
Manufacturer Dave Nutting Associates / Midway
Year 1980
Runnable yes
System arcade /
Number of players 2P sim
Added to MAME .031
Romset size 16 KB
Romset file 4 files
Romset zip 11 B
Language English
Evaluation 30 to 40 (Amendable)
Genre Sports

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt yes
Input players 2
Input buttons
Input coins 2

Controls infos

type ways minimum maximum sensitivity keydelta reverse
trackball 0 255 50 10 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 352 240 60.054442 7159090 455 0 352 262 0 240

Configuration

name tag mask
Monitor
Name B/W
Value 0
Default yes
Name Color
Value 1
Default no

FAKE
1

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade m761a 4096 34422147 6483ca1359b675b0dd739605db2a1dbd4b7fb8cb maincpu 0 good no
arcade m761b 4096 4f28dfd6 52e571e671fa61b0f9ab397a5947094c24f6c388 maincpu 1000 good no
arcade m761c 4096 bff6c97e e41fb9db919039c8a48b4caebf80821a066d7ccf maincpu 2000 good no
arcade m761d 4096 5173781a e60c3f4b075f8b811ff6a8637c4aa0b089847a82 maincpu 3000 good no

Chips list

name tag type clock
Astrocade astrocade1 audio 1789772
Speaker mono audio
Z80 maincpu cpu 1789772

Serie

Serie : Tornado Baseball
  1. Tornado Baseball / Ball Park (1976)
  2. Double Play (1977)
  3. Extra Inning / Ball Park II (1978)
  4. Extra Bases (1980)

Categories

MAMEinfo

0.31 [Alex Judd]


Artwork available


WIP:

- 0.149: hap added Extra Bases color overlay (same as Space Zap). Note: Cocktail cabinets had a B/W monitor with color overlay (same one as Space Zap!), upright cabinets at factory default had a B/W monitor too, with a baseball stadium background [gregf]. Added 'Monitor' dipswitch.

- 11th May 2013: Mr. Do - gregf showed us a picture of an Extra Bases cocktail, which used the same screen overlay as Space Zap, so that has been added in.

- 0.145u4: hap fixed trackball in Extra Bases.

- 23rd October 2009: Mr. Do - Kiltron did a nice cleanup job on Extra Bases, which was on loan from Vintage Arcade. Backdrop to come at a later date (hopefully).

- 0.115u2: Changed visible area to 352x240.

- 0.115u1: Changed Z80 CPU and Astrocade clock speeds to 1789772 Hz, VSync to 60.054442 Hz and palettesize to 512 colors. Added 'Cabinet' dipswitch. Changed 'Unknown' dipswitches to 'Unused'.

- 0.37b6: Added 'Monitor' dipswitch.

- 0.37b1: Changed visible area to 320x204.

- 29th March 2000: Nicola Salmoria added better emulation of Astrocade hardware palette registers, affecting Extra Bases, Seawolf 2 and Robby Roto.

- 0.36b10: Changed 4-way Joystick to Trackball and 3 players.

- 0.35RC2: Changed visible area to 320x192.

- 17th November 1999: Zsolt Vasvari fixed Extra Bases, which is now playable.

- 0.34b4: Emulation of the Astrocade sound chip (Extra Bases, Gorf, Robby Roto, Space Zap and Wizard of Wor) [Frank Palazzolo]. Added 1x Astrocade sound.

- 0.31: Alex Judd added 'Extra Bases' (Midway 1980). Not playable.

- 4th April 1998: Dumped Extra Bases.


LEVELS: 1 (endless)


PLAY INSTRUCTIONS:

- Press PITCH button to start pitch

- Rollerball controls pitch and moves outfielders

- Press BAT button to swing bat

- Hold button down to advance runners


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History


Arcade Video game published 39 years ago:

Extra Bases [Upright model] (c) 1980 Midway.

An old baseball game.

- TECHNICAL -

Bally Midway Astrocade hardware.
[Game No. 761]

Main CPU : Zilog Z80 (@ 1.789773 Mhz)
Sound Chips : Astrocade (@ 1.789773 Mhz)

Screen orientation : Horizontal
Video resolution : 320 x 204 pixels
Screen refresh : 60.00 Hz
Palette colors : 256

Players : 2
Control : trackball
Buttons : 1

- TRIVIA -

Released in April 1980.

Also released as "Extra Bases [Cocktail Table model]".

- SERIES -

1. Tornado Baseball (1976)
2. Extra Inning (1978)
3. Extra Bases (1980)

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=781&o=2