[cc65] const

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From: Christian Krüger (christian.krueger_at_pace.de)
Date: 2003-01-13 10:45:01 

Hi (the last question for today ;-)),
(BTW: Should I merge next time my questions into one mail
or is splitting into several threads ok?)

does declaring a 'call by value' as 'const' bring
performance advantages?

Example:

--8<--------------------------------------------

void __fastcall__ func1(unsigned char const x);
void __fastcall__ func2(unsigned char x);

--
unsigned char x = 10;
func1(x);			// actual no need to save and restore
func2(x);			// accu and x

--8<--------------------------------------------

What does the compiler do? I know that the assembler programmer
has to take care that no modification to accu & x is allowed
in 'func1()', but I would appreciate this behaviour anyhow...

Regards
chrisker
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