>>For what it's worth, the menu system should boot to whatever "game 0" is--
>>for example Star Trek. Unless you press and hold P1 start and P2 start at
>>the same time, you wouldn't see the menu. I thought about putting a little
>>serial NOVRAM out in memory to store the "current" boot game, but that
>>actually complicates things a bit. (Weak pulldowns will insure that image
>>0 always starts at boot time, since it's actually the game's ROM from
>>0x0000-0x7ff that's executing at powerup time... The menu code lives up in
>>0xF000 and is only called by the NMI vector.)
>
>Place the bank selection into the PIC processor used to re-map the keyboard.
>If you use a PIC with built in EEPROM, it can remember the setting itself
>and set the banking on power up.
Hmmmm. That's a thought. Do you know of any PICs other than the 16C8x
family that have onboard EEPROM for data storage? (I might want more than
the 13 I/O lines there... Haven't really looked it over that closely yet.)
-Clay
Clayton N. Cowgill Engineering Manager
_______________________________________________________________________
/\ Diamond Multimedia Systems, Inc. clay@supra.com
\/ Communications Division http://www.supra.com/
Received on Wed May 7 15:11:48 1997
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