I'm using MPLINK to generate the HEX output file and I'm only
using UDATA_SHR, yet for some reason I'm getting two RETLW 0x00
instructions appearing in a .cinit section which I had to declare to
remove an error with the linker. Is there any simple explanation as
to why the linker is placing anything in the .cinit section. I have
copied both the linker command file and small bit of code as well
at the hex out put:

// Linker File for P16C84

CODEPAGE    NAME=cRESET         START=0x00  END=0x03    PROTECTED
CODEPAGE    NAME=cINTERRUPT     START=0x04  END=0x04    PROTECTED
CODEPAGE    NAME=cPROGRAM       START=0x05  END=0x3EF   PROTECTED
CODEPAGE    NAME=cRUBISH        START=0x3F0 END=0x3FF   PROTECTED

DATABANK    NAME=SFR0           START=0x00  END=0x0B    PROTECTED
DATABANK    NAME=SFR1           START=0x80  END=0x8B    PROTECTED
SHAREBANK   NAME=rVARIABLES     START=0x0C  END=0x2F    PROTECTED

SECTION     NAME=RESET      ROM=cRESET
SECTION     NAME=INTERRUPT  ROM=cINTERRUPT
SECTION     NAME=PROGRAM    ROM=cPROGRAM
SECTION     NAME=.cinit     ROM=cRUBISH
SECTION     NAME=VARIABLES  RAM=rVARIABLES


:02 0000 00 0528                D1
:02 0008 00 0828                C6
:06 000A 00 0F30 8C00 0728      F6
:02 0010 00 0900                E5
:04 07E0 00 0034 0034           AD <- two RETLW 0x00 instructions
:00 0000 01                             FF

    list        p=16c84
    #include    <p16c84.inc>


VARIABLES   UDATA_SHR
TEMP_W      RES 1

RESET       CODE
        GOTO    START

INTERRUPT   CODE
        GOTO    ISR


PROGRAM     CODE
START:
        MOVLW   0x0F
        MOVWF   TEMP_W
LOOP:
        GOTO    LOOP

ISR:
        RETFIE

        END

Gavin, R&D Software Engineer
Auckland, New Zealand

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