[sdiy] Pointers in C

[Olivier Gillet]

> I'm currently using a shift/mask approach and it's taking up valuable clock cycles.

Have you checked the generated code? There are many places in the
Shruthi-1 code where I do things like:

uint8_t result = (a_16_bits_word >> 8) & 0xff;

And gcc is always smart enough to compile this into a direct byte /
register transfer ; not the shift and mask. Even better, when
a_16_bits_word is the result of a complex sequence of operations, gcc
removes dead code that has no influence on the MSByte.

Olivier