On Wed, 21 Jun 2000, Maarten ter Huurne wrote:
> - low level: the VRAM IC is accessed by CPU and VDP at the same time.
In the ADVRAM this never happens, because the dynamic rams
used in the msx are replaced by static ram, much faster. Since the
rate the VDP request data to vram is the same, and the memory is faster,
there are lots of "windows" where the cpu can read the data from vram.
That's why vdp commands can run in parallel with cpu reads/writes.
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