On Wed, Jan 11, 2006 at 01:53:25PM +0000, Steve Harris wrote: > I agree about ARM assembly, I have written some (not DSP related) many > years ago and it was quite straightforward.
Another ex Acorn user ??? > Does this ARM chip have real fixedpoint hardware, or do you have to do bit > manipulations to get the numbers? It doesn't have anything specific fixed point. It's all integer, and you, as the programmer, have to imagine a binary point somewhere in your data and keep track of it. What helps enormously on the ARM is that all arithmetic instructions can include a (no overhead) shift on one of the operands. There are some other unique things, such as the 16 conditions on *all* instructions. -- FA
