From: Christian Krüger (christian.krueger_at_pace.de)
Date: 2003-02-01 17:06:37
Hi,
even if I hate to complain, you wrote:
>const" means that the value passed to the function is not modified by
>the function.
...so when the value passed to the function is given in accu/x
it means that accu/x will not change...
>There is no way to write any decent 6502 code without using the
>accumulator.
I disagree. Because I program 'a little bit object oriented' even
in 'C' I have many 'getters' & 'setters'. So the function bodies of
approx. 20% of my functions looks like this:
--8<----
void __fastcall__ setAnyData(const unsigned char anydata);
setAnyData:
sta anydata
rts
--8<----
When writing to daughter chip registers (like setting colors,
doing sound etc.) the same is true...
There are much more functions possible on 65(S)C02, thanks
to the 'stz'-instructions, where clearing a given table (pointer
in accu/x) won't corrupt the accu...
But maybe I should use my energy for writing an enhanced optimizer
which will support this feature... ;-)
>> out of the box: inline functions (even when I have worse
>> assumptions, which problems are tied to that feature...)
>
>Yes, that's one of my favourites, too:-)
Phew - I promise to shut up... ;-)
Regards
chrisker
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