The vic II txt writeup shows all data access? Hans. fre. 7. feb. 2020, 10:16 skrev tokafondo <tokafondo_at_gmail.com>: > I've been studying the things the VIC-II does when sharing the data bus > with > the CPU. I'm talking about fetching data for text, graphics, color and > sprites. And then, refreshing the DRAM. > > But... what if I turn the VIC-II "off"? What does it do when I want no > graphics at all? Just refreshing DRAM? does it stop accessing the bus and > reading all the memory locations it needs or does it just do it every time, > no matter if it's displaying something? > > I'm asking this, because I'm having the idea of this GPU cartridge for the > Commodore 64, where the VIC-II is not used at all, so the CPU has all the > cycles it can use during its turn of the clock cycle available for it, with > no badlines or color ram or sprites interfering that make the VIC-II stop > it. > > Thanks for answers. > > > > -- > Sent from: http://cbm-hackers.2304266.n4.nabble.com/ > >Received on 2020-05-30 00:52:36
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