[tremor] Memory optimizations

[timmy brolin]

> The ipod has two arm7tdmi cores running at up to > 90MHz, so this should be
> no problem. My problem is with memory bandwidth - the 32MB main memory is
> connected to the CPUs on a very slow bus. But we have 96kB fast SRAM.
> Unoptimized ivorbisfile_example runs at about 50-80% speed depending on bitrate.

There is no cache? If there is... Turn it on and it will most likely solve the problem for you.

/Timmy

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