RE: gpasm extended mode -- MPLAB message

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Marko=2C
Added to bug tracker: http://sourceforge.net/tracker/?func=3Ddetail&aid=3D3=
310962&group_id=3D41924&atid=3D431665
ThanksSiva

> Date: Fri=2C 3 Jun 2011 08:54:08 +0300
> Subject: Re: gpasm extended mode -- MPLAB message
> From: [email protected]
> To: [email protected]
>=20
> No. Comparing the COFF help file from MPASM 5.40 against gpcoff.h=2C
> flags F_ABSOLUTE and F_EXTENDED18 seem to be missing from the COFF
> file headers. Maybe Microchip has added them at some point but gputils
> has not been updated. These changes in COFF may be part of the changes
> Microchip did while they stopped using COD files.
>=20
> I think you should add this to the tracker at sourceforge. If not a
> patch with test cases=2C a bug report at least.
>=20
> Marko
>=20
> On Fri=2C Jun 3=2C 2011 at 8:14 AM=2C Sivaram Gowkanapalli
> <[email protected]> wrote:
> >
> > Hello=2C
> >
> > I built the below file with gpasm and gplink.
> >
> > But=2C when I import the test.cof file into MPLAB=2C MPLAB
> > complains with a message of "The Extended CPU Mode Configuration
> > bit is enabled=2C but the program that was loaded was not built using e=
xtended
> > CPU instructions. Therefore=2C your code may not work properly"
> >
> > I used the --extended flag with gpasm and alos used the latest svn vers=
ion
> > of gpasm. Just wanted to check if the extended mode of gpasm actually w=
orks.
> >
> > =3B =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D test.asm begin
> > =3B Build commands
> > =3B gpasm --extended --object test.asm
> >
> > =3B gplink --map --object --output test.hex test.o
> > =3Bmessage: using default linker script "/usr/local/share/gputils/lkr/1=
8f4455.lkr"
> >
> >   errorlevel 0
> >   list p=3D18f4455 =3B set processor type
> >   list n=3D0 =3B supress page breaks in list file
> >   include <p18f4455.inc>
> >   include <coff.inc>
> >   =3B Instruction set extension and Indexed Addressing mode enabledd
> >   CONFIG XINST   =3D ON
> >
> > vars udata 0x00
> > _temp res 1
> >
> > RESET_VECTOR CODE 00000h =3B Reset and Interrupt Vectors
> >   pagesel start
> >   goto start
> > MAIN CODE
> >   global start
> > start
> >
> >   lfsr 2=2C 0xff
> >   movlw 0xff
> >   =3Bmovff WREG=2C_temp
> >   movwf _temp=2CACCESS
> >   incf _temp=2CF=2CACCESS
> >   incf _temp=2CF=2CACCESS
> >   incf _temp=2CF=2CACCESS
> >   pushl 0x1
> >
> > end
> > =3B=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D test.asm end
> >
> > Thanks
> > Siva
> >
>=20
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>=20
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