 No.00487
RansAckeR Tester
Mar 31, 2008, 19:01
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According to the manual the current cocktail DIP is actually the DIP for Table/Upright Controls only and DSW1:8 should be the screen flipping switch. Which is the one currently marked as vblank? PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_VBLANK ) |
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No.00494
RansAckeR Tester
Apr 1, 2008, 07:21
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About the zoar service mode: /* Service mode doesn't work because of missing ROMs */ PORT_SERVICE( 0x20, IP_ACTIVE_LOW ) The manual doesn't say anything about a service mode/switch. The manual indicates the 0x20 dip switch is simply unused. Is there proof of a service mode? |
 No.04021
Smitdogg Senior Tester
Mar 22, 2009, 06:32
edited on: Mar 22, 2009, 06:34
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About service mode, every Zoar pcb I've seen is "missing" that rom. Guru says it's probably a rom used to test things on the boards before they shipped from the factory but wasn't shipped on the boards. |
 No.04035
Robbbert Senior Tester
Mar 23, 2009, 06:08
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Sounds like it might be a btanb.. |
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No.04053
Smitdogg Senior Tester
Mar 24, 2009, 17:07
edited on: Mar 24, 2009, 17:08
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Yeah the bit about the missing rom could be separated into a btanb. I'll separate them when I get a chance. |
 No.05509
stephh Developer
Jan 13, 2010, 21:51
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The initial bug about the "Upright" setting of the "Cabinet" Dip Switch has nothing to do with protection (as Luigi supposed), nor it is a BTANB (according to Robbbert). I've submitted a fix which updates the 'zoar_video_control_w' handler in a similar way to the 'bnj_video_control_w' and 'disco_video_control_w' handlers, and changed the Dip Switches as in the other games (even if I can't use IPT_VBLANK as players would have almost no time to enter their initials). FYI, here is why the value read within the debugger never change when you toggle the "Cabinet" Dip Switch : static ADDRESS_MAP_START( zoar_map, ADDRESS_SPACE_PROGRAM, 8 ) ... AM_RANGE(0x9800, 0x9800) AM_READ(zoar_dsw1_read) ... ADDRESS_MAP_END static INPUT_PORTS_START( zoar ) ... PORT_START("DSW1") ... PORT_DIPNAME( 0x80, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:8") PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) PORT_DIPSETTING( 0x80, DEF_STR( Cocktail ) ) ... INPUT_PORTS_END static READ8_HANDLER( zoar_dsw1_read ) { return (!video_screen_get_vblank(space->machine->primary_screen) << 7) | (input_port_read(space->machine, "DSW1") & 0x7f); } You can easily notice that bit 7 of DSW1 was ALWAYS discarded. Dip Switches still require to be check against the M6502 code (for this game as well as the other games in this driver), but this another story ... So I consider this bug as fixed, and I let moderators move things about the SERVICE_MODE stuff to a documentation bug ... |