I have found the file, but how the compiler automatically insert into the
ASM file?
I compiled the sdcc in the VS10.0 by myself.
I have read a lot of the source code. So please tell me more details..
And how can I get a right version that can generate the load code(using the
idata.c) before startup.
Thank you, very much.
2012/12/21 Borut Ražem <borut.ra...@gmail.com>
> > if have Where is the source code doing this LOAD?
> > if not ,How can i do this?
>
> See device/lib/pic14/libsdcc/idata.c
>
>
> > Another, in SDCC PIC14 the *pic16f887.lib* doing what?
> > and how it come from? how can i compile to get it by myself?
> > What does it contain?
>
> See device/non-free/lib/pic14/libdev/pic16f887.c
>
> Borut
>
>
> On 21. 12. 2012 08:03, feqin fan wrote:
>
> Hello,everyone.
> just like the title.
> I write C code like this:
>
> ------------------------------------------------------------------------------------------
> #include<pic16f887.h>
> unsigned char a[4] = {0x12, 0x13, 0x14, 0x15};
>
> int main() {
> PORTA = a[2];
> return 0;
> }
>
> -------------------------------------------------------------------------------------------
> the generated asmbler file is:
>
> -------------------------------------------------------------------------------------------
> ID_a_0 idata
> _a
> db 0x12
> db 0x13
> db 0x14
> db 0x15
>
> STARTUP code 0x0000
> nop
> pagesel __sdcc_gsinit_startup
> goto __sdcc_gsinit_startup
>
> code_a code
>
> _main
> BANKSEL _a
> MOVF (_a + 2),W
> BANKSEL _PORTA
> MOVWF _PORTA
> ; .line 1806; "a.c" return 0;
> MOVLW 0x00
> MOVWF STK00
> MOVLW 0x00
> RETURN
> ; exit point of _main
>
> end
>
> -------------------------------------------------------------------------------
> in the manual of gputils for the directive IDATA have this "Data memory is
> alllocated and the initialization data is placed in ROM,
> The user must provide the code to load the data into memory"
> so , just like the title can sdcc generate code which can load value from
> ROM(placed for idata directive) to RAM in startup?
>
> if have Where is the source code doing this LOAD?
> if not ,How can i do this?
>
> Another, in SDCC PIC14 the *pic16f887.lib* doing what?
> and how it come from? how can i compile to get it by myself?
> What does it contain?
>
> Thanks, guys..
>
> --
> *live long and prosper..*
>
>
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>
>
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