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Catalogue of Arcade Emulation Software - the Absolute Reference

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vicdual.c

0.33b4 [Mike Coates, Richard Davies, Nicola Salmoria, Zsolt Vasvari]

0.08 [Nicola Salmoria]


TODO:

- Analog sound missing in many games

- Missing color PROM for "Alpha Fighter / Head On"

- Colors are wrong in N-Sub. It uses a different resistor ladder. There appears to be a color fade effect missing as well. See the screen shot at: http://www.system16.com/hardware.php?id=685&page=1#1772

- A few of the games have an extra 18K pull-up resistor on the blue color gun, Carnival, for example. Colors inaccurate? Blue background?

- Does Digger run too fast compared to the real machine? The timing is implemented according to the schematics, but who knows...

- DIP switches need verifying in most of the games

- DIP switch locations need to be added to all the games


NOTES:

- Head On and Space Attack had both color and monochrome versions. There is a game configuration option to switch between them.

- There existed a vertical version of Head On as well


VIDEO HARDWARE NOTES:

- The VIC dual game board has one 32x8 palette PROM. The color code is taken from the three most significant bits of the character code, plus two additional palette bank bits.


WIP:

- 0.113u3: Zsolt Vasvari did a ground-up rewrite of the VIC Dual driver.

- 0.105u3: Aaron Giles fixed graphics corruption in the VIC Dual driver.

- 23rd January 2001: MASH added Alpha Fighter / Head On to the VIC Dual driver.

- 23rd August 2000: Juergen Buchmueller added preliminary analog sound emulation to Pulsar.

- 2nd May 2000: Zsolt Vasvari added the B&W version of Space Attack to the vicdual driver.

- 15th November 1999: Nicola Salmoria fixed the colors in Vicdual games.

- 21st September 1999: Zsolt Vasvari sent in a vicdual update which supports samples for Pulsar and Invinco.

- 3rd September 1999: Zsolt Vasvari sent in a nice update to the Vicdual driver, for example Depth Charge now has samples.

- 11th August 1999: Phil Stroffolino sent in a preliminary Samurai driver, which is missing sound and colors but otherwise playable.

- 0.33b6: Removed carnival.c driver.

- 0.33b5: Removed safari.c driver. New flag IPF_RESETCPU for input ports. When this flag is set, CPU #0 is reset when the key is pressed. This cleaned up the Vicdual driver [Nicola Salmoria].

- 0.33b4: Merged carnival.c and safari.c to vicdual.c driver. Marco Cassili did lots of clean up, consolidation, dipswitches additions and color fixes to the Carnival driver (which is now called vicdual.c, since Carnival is just one of the many games which run on that hardware).

- 0.33b3: Added safari.c driver.

- 0.08: Added carnival.c driver.