Re: 6502, 6510 tri-state

From: Pasi 'A1bert' Ojala <a1bert_at_iki.fi>
Date: Fri, 30 Nov 2018 16:47:56 +0200
Message-ID: <466c8588-55ca-b8ad-fad1-b70780140a27@iki.fi>
On 30.11.2018 16:11, silverdr@wfmh.org.pl wrote:
> Does this happen all the time, regardless of whether the VIC is "blanked" (bit 4 of SCROLY if memory serves)?
IIRC VIC always uses the second half of the cycles. Sprites are fetched 
even when the screen is blanked and steal cycles. And naturally the 
refresh cycles need to be done, but they don't steal cycles. (See BA.)

-Pasi
Received on 2018-11-30 16:02:28

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