Re: C code .vs. Assembly code for Microcontrollers/DSPs ?

Eyal Ben-Avraham wrote:
> This code efficiency gap also exists for C compilers on
> Workstations/PC's, the main difference is in 2 issues:
>
> 1. The average application size on microcontrollers or DSPs is small.
> So it can easily be written manually.
>
> 2. Reducing the application size on embedded microcontrollersor/DSP's
> can cause reduction in product price and improved performance.
> since these products are sold in large quantities, any manual effort
> to improve the application coding is worthwhile.


Cost is everything in mass produced embedded systems. Ultimately a
really tight microcontroller design is as likely to be designed bottom
up as top down in order to meet a functional spec. at the
price. Compilers can decide the code translation but not the
component/resource mix and a winning product may utilise standard
components in unorthodox ways that a compiler designer wouldn't
imagine in his worst nightmares.


------------
Andrew.
--

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