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zaccaria.cpp: Protection device has been located (nw)

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AJR 2017-08-05 23:32:20 -04:00
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src/mame/drivers/zaccaria.cpp
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@ -25,10 +25,10 @@ TODO:
Notes:
- There is a protection device which I haven't located on the schematics. It
sits on bits 4-7 of the data bus, and is read from locations where only bits
0-3 are connected to regular devices (6400-6407 has 4-bit RAM, while 6c00-6c07
has a 4-bit input port).
- There is a protection device on the memory board which is unidentified on the
schematics but appears to be a PAL16. It sits on bits 4-7 of the data bus, and
is read from locations where only bits 0-3 are connected to regular devices
(6400-6407 has 4-bit RAM, while 6c00-6c07 has a 4-bit input port).
- The 6802 driving the TMS5220 has a push button connected to the NMI line. On
Zaccaria pinballs, when pressed, this causes the speech 6802 and the slave