Extra Bases
An old baseball game.
Technical
CPU
- maincpu Z80 (@ 1 Mhz)
Chipset
- Astrocade (@ 1 Mhz)
Display
- Orientation Yoko
- Resolution 255 x 240
- Frequency 60.054442 Hz
Controlers
- Number of players 2
- Number of buttons 1
- Kind of controler trackball
If you liked Extra Bases
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Extra Bases and M.A.M.E.
0.31 [Alex Judd]
Artwork available
WIP:
- 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' to 'Unused' dipswitches.
- 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
Romset: 16 kb / 4 files / 11.8 zip
Artwork available
WIP:
- 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' to 'Unused' dipswitches.
- 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
Romset: 16 kb / 4 files / 11.8 zip