Catalogue of Arcade Emulation Software - the Absolute Reference

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Bosconian (new version)

0.36RC2 [?]

0.35b13 [Toninho]

0.27 [Martin Scragg]


- The IC test routine takes over 20 seconds.

- After I got four million points, the high score counter was not getting updated. The regular score counter kept going fine, but the high score never got updated again after the 3.999million and some points (see inp file and snapshots) bosco059gre, SiKrAiKeN This isn't an emulation bug, I'm certain. Galaga does something like this too. The high score display during the game does not flip back to 0 like your regular score, it just shows the highest reached score. Your actual score is still kept track of normally. I think the designers just didn't figure this would ever happen. rittwage


- If you let either an old or new version of Bosconian run through the attract mode, you will see the title scroll onto the screen over a gray background. Then that background will get wiped away to reveal the starfield beneath. But in 0.80 a vertical portion on the left side of that gray remains after the initial wipe and only gets erased as other objects come on screen. I believe the entire gray area is supposed to be wiped away all at once. The attached screenshot should show an example of some of the gray area remaining on the left side. (see snapshot). bosco080u1gre Prophet


- 0.112u2: Replaced 3x DAC with Discrete sound.

- 0.112u1: Replaced implementation of Namco 54xx sound chip with new MB8844 CPU core running the original embedded ROM code. Removed old sound core. Pole Position and Bosconian no longer require samples as a result [Nicola Salmora, Ernesto Corvi, Guru]. Added MB88xx (256000 Hz) CPU4 with 1k rom and replaced Namco 54XX and Samples with 3x DAC sound.

- 0.94u5: James Rowan corrected Galaga and Bosconian starfields.

- 0.94u2: Derrick Renaud added proper watchdogs to Bosconian, Galaga, Pole Position and Xevious.

- 0.90u3: Derrick Renaud added proper filters to the Namco52 sample player of Bosconian, Galaga, Pole Position and Xevious. Adjusted relative effect volumes per schematics.

- 0.90u2: Derrick Renaud updated the Namco 54xx noise sound and added the R/C values to Bosconian, Galaga, Pole Position and Xevious.

- 0.89u5: Jarek Burczynski improved the Namco 54xx Noise Generator (Type A and B emulated, type C algo still unknown). Removed bigbang and midbang.wav sample.

- 0.79u1: Nicola Salmoria fixed tile/sprite priority handling in Bosconian and made a better emulation of the 50XX custom chip (no more need for hacks). Bosconian now uses a different sound PROM, which seems more correct. Changed the 3x Z80 CPUs clock speeds to 3072000 Hz and replaced Custom sound with Namco 52XX (1536000 Hz) and Namco 54XX (1536000 Hz).

- 0.37b12: Changed VSync to 60.606060Hz.

- 0.37b2: Added clone Bosconian (older version).

- 0.36RC2: Added Bosconian (new version) (Namco 1981). Renamed (bosco) to (boscoo).

- 0.36b13: Renamed (boscomd) to (boscomdo) and (boscomd2) to (boscomd).

- 0.36b11: Vernon C. Brooks fixed Bosconian score handling.

- 0.36b4: Gamester fixed scores in Bosconian.

- 0.36b1: Nicola Salmoria fixed controls and graphics in Commando (Sega), which is now fully playable. This also fixes diagonal shots in Bosconian. Added proms (dots, video layout, video timing and timing).

- 0.35b13: Renamed (bosco) to (boscomd), (bosconm) to (bosco) and (bosco2) to (boscomd2).

- 10th July 1999: Nicola made a major improvement to Bosconian, Commando (Sega), Rally-X and the rest, adding a missing character PROM.

- 0.35b5: Zsolt Vasvari added clone Bosconian (Midway, set 2). Added sound1 prom.

- 26th February 1999: Zsolt Vasvari has added several clones (for Smash TV, Galaxian, Rampage, Satan's Hollow, Bosconian).

- 0.30: Martin Scragg added the background star field to Bosconian and fixed Bosconian crashing: This was the speech processor being used for a protection check.

- 0.29: Toninho added clone Bosconian (Namco).

- 0.28: Changed description of 'bosco' to Bosconian.

- 0.27: Martin Scragg added bosco (Midway 1981). The sounds are from the M-ulator V 0.14 by Martin Scragg.

LEVELS: 255 (endless)

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* Retrocade

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Romset: 51 kb / 20 files / 36.1 zip