NES Programming Tutorial : Init Code

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lidnariq
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Re: NES Programming Tutorial : Init Code

Post by lidnariq »

rainwarrior wrote:...or maybe this is just a semantics thing, because the "unreliable" vblank flag is probably caused by resetting during vblank?
Exactly. It's neither set nor cleared by externally applying the /RESET signal.
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rainwarrior
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Re: NES Programming Tutorial : Init Code

Post by rainwarrior »

lidnariq wrote:
rainwarrior wrote:...or maybe this is just a semantics thing, because the "unreliable" vblank flag is probably caused by resetting during vblank?
Exactly. It's neither set nor cleared by externally applying the /RESET signal.
The wiki seems to suggest that it's set (or unreliable?) at power on as well.

NES users are used to having to reset a few times to get their game to work anyway, though. :P Sometimes it might be the software's fault.
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