Hot!addwf doesn't set carry ?

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AleMala
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2018/10/09 16:46:43 (permalink)
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addwf doesn't set carry ?

I am using MPLABX v 5.00 emulator and i had to use different instructions couse
the following code doesn't work:
      
     MOVIW INDF0++ 
     ADDWF INDF0,W
     RRF WREG,W

the problem is the second (ADDWF)  that doesn't change the carry flag ?
Help welcome! Alessandro.
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    GeorgePauley
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    Re: addwf doesn't set carry ? 2018/10/10 08:33:08 (permalink)
    +2 (2)
    What device
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    AleMala
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    Re: addwf doesn't set carry ? 2018/10/10 15:56:51 (permalink)
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    MPLABX v 5.00 emulator for pic16f1459.
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    qhb
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    Re: addwf doesn't set carry ? 2018/10/10 16:18:09 (permalink)
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    MPLABX 5.05 has been out for a while now.
     

    Worst forum problems are now fixed, but the damn firewall is still there.
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    GeorgePauley
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    Re: addwf doesn't set carry ? 2018/10/11 11:09:32 (permalink)
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    I just ran this and saw the carry flag set.  Are you sure the input values to the ADDWF are what you think they are?
     
        MOVLW 0x00
        MOVWF FSR0H
        MOVLW 0x65
        MOVWF FSR0L
        MOVLW 0xFF
        MOVWF 0x65
        ADDWF INDF0,W
     
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    AleMala
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    Re: addwf doesn't set carry ? 2018/10/11 16:29:17 (permalink)
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    I try your code and it sets the carry properly !
    I will install the new version 5.05 and check.
    Regards, Alessandro
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    AleMala
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    Re: addwf doesn't set carry ? 2018/10/13 13:22:47 (permalink)
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    You are right, I try this code and everything works fine.
    MOVLW 0x00
    MOVWF FSR0H
     MOVLW 0x65
     MOVWF FSR0L
     MOVLW 0x1
     MOVWF 0x65
     MOVWF 0x66
     BSF STATUS,0
     MOVIW INDF0++
     ADDWF INDF0,W

    By the way, i remember now that after some errors i installed a newer underlying java machine.
    But the most affordable option may be i was drunk !!!
    Excuse me, Alessandro.
    #7
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