snes memmap which one to use?

Discussion of hardware and software development for Super NES and Super Famicom.

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Anes
Posts: 605
Joined: Tue Dec 21, 2004 8:35 pm
Location: Mendoza, Argentina

snes memmap which one to use?

Post by Anes » Sat Aug 01, 2020 10:12 am

Hi everyone!!
I have been lost and here i am again looking for answers.
I see the page and fourm has changed or updated.

Anyway right to the point:

The Data "Bus B" 8 bit a way as saying "yes i have an output unit". Do i have to care about thie bus or stick with LOROM/HIROM , etc MEM map?
Which mem map do i have to trust?
ANes

lidnariq
Posts: 9507
Joined: Sun Apr 13, 2008 11:12 am
Location: Seattle

Re: snes memmap which one to use?

Post by lidnariq » Sat Aug 01, 2020 10:40 am

The "B" bus is for parts that want to be able to DMA to/from things that are only on the "A" bus, like cart ROM. As far as I know, this is unused by all existing carts with the exception of the prototype CDROM.

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