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Flagged Mystic Marathon as having wrong colors and documented what is known regarding his as a TODO in the source. (nw)

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This commit is contained in:
Scott Stone 2016-01-14 09:41:11 -05:00
parent 7f02a9e47b
commit 297230a909
1 changed files with 16 additions and 2 deletions
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18
src/mame/drivers/williams.cpp
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@ -486,6 +486,20 @@
0 0 1 x x x x x x x x x x x x x 2000-3FFF CS PIA IC4
1 1 1 x x x x x x x x x x x x x E000-FFFF 8K ROM
TODO:
Mystic Marathon colors are very likely incorrectly derived from schematics.
The video DAC is in the lower right corner of the schematic on page 11 of the Mystic Marathon Drawing Set,
or page 19 of the Turkey Shoot Service Manual (both are identical as far can be seen). Both schematics
are available at http://arcarc.xmission.com/PDF_Arcade_Williams/
It's a RAM-based palette with 4 bit red, green, blue and brightness/intensity components. It looks like the
brightness component (from IC76, the uppermost of the four 2148 SRAMs) should be combined with the color
components in a more complicated way than simply multiplying them like MAME does.
Reference video: https://www.youtube.com/watch?v=R5OeC6Wc_yI
***************************************************************************/
#include "emu.h"
@ -3099,8 +3113,8 @@ GAME( 1985, alienaru, alienar, williams_muxed, alienar, williams_state, alie
GAME( 1987, lottofun, 0, lottofun, lottofun, williams_state, lottofun, ROT0, "H.A.R. Management", "Lotto Fun", MACHINE_SUPPORTS_SAVE )
/* 2nd Generation Williams hardware with tilemaps */
GAME( 1983, mysticm, 0, mysticm, mysticm, williams2_state, mysticm, ROT0, "Williams", "Mystic Marathon", MACHINE_SUPPORTS_SAVE )
GAME( 1983, mysticmp, mysticm, mysticm, mysticm, williams2_state, mysticm, ROT0, "Williams", "Mystic Marathon (prototype)", MACHINE_SUPPORTS_SAVE ) // newest roms are 'proto 6' ?
GAME( 1983, mysticm, 0, mysticm, mysticm, williams2_state, mysticm, ROT0, "Williams", "Mystic Marathon", MACHINE_WRONG_COLORS | MACHINE_SUPPORTS_SAVE)
GAME( 1983, mysticmp, mysticm, mysticm, mysticm, williams2_state, mysticm, ROT0, "Williams", "Mystic Marathon (prototype)", MACHINE_WRONG_COLORS | MACHINE_SUPPORTS_SAVE ) // newest roms are 'proto 6' ?
GAME( 1984, tshoot, 0, tshoot, tshoot, williams2_state, tshoot, ROT0, "Williams", "Turkey Shoot", MACHINE_SUPPORTS_SAVE )
GAME( 1984, inferno, 0, williams2, inferno, williams2_state, inferno, ROT0, "Williams", "Inferno (Williams)", MACHINE_SUPPORTS_SAVE )
GAME( 1986, joust2, 0, joust2, joust2, joust2_state, joust2, ROT270, "Williams", "Joust 2 - Survival of the Fittest (revision 2)", MACHINE_SUPPORTS_SAVE )