diff options
author | RobertoFresca <robbie@mamedev.org> | 2017-10-08 16:05:32 -0300 |
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committer | RobertoFresca <robbie@mamedev.org> | 2017-10-08 16:05:32 -0300 |
commit | a2a19de794d0dd186da185ef77b62a98b8980838 (patch) | |
tree | 0c72e0b29db9c1ed19ec75d53e40be5dcc6e0607 /src/mame/drivers/notechan.cpp | |
parent | 362beba7ab5bffd3ef9a1bf47740a66535e69205 (diff) |
Note Chance: Rearranged the test panel lamps to be D7-->D0.
Also arranged the notes to talk about ports and lines instead
of lamps. Added technical notes about the 4-bit counter found
in port FFh. [Roberto Fresca]
Diffstat (limited to 'src/mame/drivers/notechan.cpp')
-rw-r--r-- | src/mame/drivers/notechan.cpp | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/mame/drivers/notechan.cpp b/src/mame/drivers/notechan.cpp index d7c37fcecad..b702d1b8dd3 100644 --- a/src/mame/drivers/notechan.cpp +++ b/src/mame/drivers/notechan.cpp @@ -315,15 +315,18 @@ static INPUT_PORTS_START( notechan ) Port FAh: - (1) Pulsed under reset, activates lamp 21 and triggers sample #20 (boing). Maybe it's - the 'start' button. + (1) Pulsed under reset, activates port FAh-D5 (lamp 21) and triggers sample #20 (boing + or FX sound, depending of the OKI bank). Maybe it's the 'start' button. (2) Pulsing and keep pressed under reset, triggers the sample #01 (cling) and starts - a sequence of lamps (24-25-26). Then triggers sample #04 (voice). After a little - while also triggers sample #05 (voice). - - (3) Pulsing this input lites lamp 17 and triggers sample #01 (cling). Maybe it's - the 'coin-in' button. + a sequence of 4-lines output through port FFh D3-D2-D1-D0 (lamps 27-26-25-24) + that seems a 4-bits countdown (maybe related to the 7segment LED that counts the + credits). Then triggers sample #04 (voice or effect depending of the OKI bank). + After a little while also triggers sample #05 (voice). + Maybe it's some kind of hardware testing mode... + + (3) Pulsing this input activates port FAh-D1 (lamp 17) and triggers sample #01 (cling). + Maybe it's the 'coin-in' button. */ PORT_START("DSW") |