> From: Sam WILLIAMS wrote:
> I am attempting to test the viability of using C vs assembler for PIC
programming.

We (Byte Craft) have done quite a few internal studies of C vs Assembly.
For
compilers that we have released in the last 2 or 3 years for any non
trivial
application C won both in size and execution speed.

There are some clear advantages to using C
  Local memory allocation is a clear win. This is primarily an accounting
  problem that is easily done by compiler/linkers and is implemented using
  exact algorithms.

  Compilers can code around silicon bugs and anomalies in a transparent
  way. Most silicon companies document sequences that have potential
  problems in some applications. C compilers treat these sequences as
  part of the constraints of code generation.

  Compilers can generate code sequences that are extremely difficult
  to maintain in assembler. For example, on the PIC's using the lsb of the
  PC to implement an unconditional skip the generated code sequence is
  address dependent..

  Memory management tracking in Call and GOTO optimization.

Walter Banks