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Rotary DIP switches
#193940 - 06/22/09 10:53 AM
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Just wondering if these types of DIP switches are supported in MAME ? If not then what would be the best way to go about it.
I have four of these on the board that I am emulating.
Thanks..
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Re: Rotary DIP switches
[Re: palindrome]
#193943 - 06/22/09 12:37 PM
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> Just wondering if these types of DIP switches are supported in MAME ? If not then
> what would be the best way to go about it.
>
> I have four of these on the board that I am emulating.
>
> Thanks..
They usually behave like four DIP switches and make BCD codes.
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Re: Rotary DIP switches
[Re: Vas Crabb]
#194008 - 06/23/09 07:38 AM
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Do you mean 4 independent switches for each DIP package ?
That will give max binary value of 0x0F with all of the switches on per DIP but I only need to use a value from 0x0 to 0x9.
Thanks
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Re: Rotary DIP switches
[Re: palindrome]
#194037 - 06/23/09 01:46 PM
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> Do you mean 4 independent switches for each DIP package ?
>
> That will give max binary value of 0x0F with all of the switches on per DIP but I
> only need to use a value from 0x0 to 0x9.
>
> Thanks
Do you know what BCD is?
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| Kale |
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Il Sindaco
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Reged: 09/26/03
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Posts: 155
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Loc: Naples, Italy
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Re: Rotary DIP switches
[Re: palindrome]
#194061 - 06/23/09 05:24 PM
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Code:
PORT_START("name_of_the_bcd_dipsw_tag")
PORT_DIPNAME( 0x0f, default_val, whatever_the_dip_does ) //BCD DIP-SW
PORT_DIPSETTING( 0x00, "value_0" )
PORT_DIPSETTING( 0x01, "value_1" )
...
PORT_DIPSETTING( 0x09, "value_9" )
//A-F invalid / doesn't exist
In short, it's not necessary that you call all the dipsettings of a given input (there are various examples in the source that does that).
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Re: Rotary DIP switches
[Re: Kale]
#194135 - 06/24/09 05:00 AM
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Thanks Kale, that works well with my read handler.
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