SUZYBUSEN

[laoo]

Doc says:

SUZYBUSEN contains the bit that allows Suzy access to the bus. It does not affect the internal operation of the sprite engine until such time that the sprite engine needs the RAM bus. Then the engine will wait until it gets the bus before continuing its processing. It is suspected that in ordinary sprite engine use, this bit will be set once and then left on. This bit can be used to pause the sprite engine. The 'unsafe' condition of the internal registers is not directly affected by this bit.

It isn't supported yet.