On Oct 24, 2011, at 12:55 AM, Electron wrote:

> As you can see coding in assembly is actually easier on the PIC32 =20
> than on
> the PIC24 or dsPIC30/33 or even more on the PIC.


Thanks for the pointer.

> I don't like the asm syntax and it
> doesn't even look that good vs ARM or other RISC architectures, but =20
> then
> benchmarks seem to be all in favour of MIPS.

I've been reading up on ARM and MIPS architectures recently, and I =20
noticed the same thing.  MIPS doesn't LOOK like it would turn out to =20
be more efficient than ARM.  Is there analysis somewhere explaining =20
why it is anyway?  Maybe it's those "immediate operand" instructions.

I had to do a web search for how to do multi-precision arithmetic on =20
MIPS.
There's no carry flag, so it's sorta gross.  I'm still not sure I =20
actually believe it works all the time :-(  I never thought the PIC16 =20
weirdness where there was a carry flag but no "add with carry" =20
instruction would look good...

BTW, I thought the new 16bit PICs had lower power consumption.  A =20
random PIC24H datasheet says <50mA when running 40mips...

BillW

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