Since it is in HTML, it's got plenty of cross-references.&nbsp; I, myself,
read this document when I can't remember something about the SNES.&nbsp;
It is designed as a sort of compromise, intended to be read by both SNES
developers and emulator authors.

<P>It used to cover only graphics, but now also covers DMA, HDMA, Indirect
HDMA, joypad registers (including the old-style reading method, which is
not covered by Yoshi's doc), and Windowing.

<P>Note: Unless otherwise stated, all 16-bit number values in th