VRAM range

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tryphon
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Joined: Sat Aug 17, 2013 9:38 pm
Location: France

VRAM range

Post by tryphon » Fri Mar 20, 2015 9:32 pm

When usiing Regen debugger, I can set breakpoints on VRAM access in adresses 00000 to 2FFFF.

2FFFF ? What is there after 0xFFFF ?

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MintyTheCat
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Joined: Sat Mar 05, 2011 11:11 pm
Location: Berlin, Germany

Re: VRAM range

Post by MintyTheCat » Sat Mar 21, 2015 10:24 pm

tryphon wrote:When usiing Regen debugger, I can set breakpoints on VRAM access in adresses 00000 to 2FFFF.

2FFFF ? What is there after 0xFFFF ?
Hi,

the MD's VRAM has 64KB:

0..FFFF which is 0..65534 or 64KB.
I think it mirrors but I would have to look at the memory-map to check. Have a look in the Sega2F document.

Cheers,

Minty.
UMDK Fanboy

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