I'll do what you say. Thanks.
Merry Christmas.. :-)
圣诞快乐..
2012/12/24 Rich Bayless <richard.bayl...@att.net>
> Hello,
>
> You should test both ways.
>
> As far as the way your program functions, you are right, both __code and
> const will look the same to your program. Both will be constant values
> that can't be changed.
>
> Look at the assembly listing and the memory map files. You will see a
> difference in the amount of code memory and of ram memory.
>
> While you are doing some testing, also test the effects of __data,
> __idata, __xdata, and __pdata, on your memory map and code size.
>
> Happy holidays to you too!
>
> Rich.
>
> --- On *Mon, 12/24/12, feqin fan <feqin1...@gmail.com>* wrote:
>
>
> From: feqin fan <feqin1...@gmail.com>
> Subject: Re: [Sdcc-user] can sdcc PIC14 generate code which can load value
> from ROM(placed for idata directive) to RAM in startup?
> To: sdcc-user@lists.sourceforge.net
> Date: Monday, December 24, 2012, 6:08 AM
>
> I dont test it ,but I think the
> -------------------------------------------------------------------------
> __code unsigned char a[4] = {0x12, 0x13, 0x14, 0x15};
>
> shoule be same as:
>
> const unsigned char a[4] = {0x12, 0x13, 0x14, 0x15};
> ---------------------------------------------------------------------------
>
> Merry Christmas :-)
> 圣诞快乐.
>
>
> 2012/12/22 Gál Zsolt
> <tralitove...@freemail.hu<http://mc/compose?to=tralitove...@freemail.hu>
> >
>
> Hello,
>
> You can find in the SDCC documentation a modifier. It is __code ( with
> two underscore ).
>
> So you can try this example and see what is the different form your
> original code:
>
>
> ------------------------------------------------------------------------------------------
> #include<pic16f887.h>
> __code unsigned char a[4] = {0x12, 0x13, 0x14, 0x15};
>
> int main() {
> PORTA = a[2];
> return 0;
> }
>
> -------------------------------------------------------------------------------------------
>
> 2012/12/21 feqin fan
> <feqin1...@gmail.com<http://mc/compose?to=feqin1...@gmail.com>
> >:
> >
> ------------------------------------------------------------------------------------------
> > #include<pic16f887.h>
> > unsigned char a[4] = {0x12, 0x13, 0x14, 0x15};
> >
> > int main() {
> > PORTA = a[2];
> > return 0;
> > }
> >
> -------------------------------------------------------------------------------------------
>
>
>
> --
> ~~~~~~~~~~~~~~~~
> http://galzsolt.zzl.org
> _____
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>
>
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--
*live long and prosper..*
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