Hi to all,

I did some test using DAW instruction on MPLAB ICE2000
and this is the result.

        Movlw           0x0F            ; w reg has d=15: B=00001111
        DAW                             ; do decimal adjustments
        Movwf           BCD_REG ; BCD_REG has d=21 b=00010101 C=0


Second digit (F)                05
First  digit (0)     + 01
Result               015        ; 0 means C=0: 1 is bits 4,5,6,7  and
                                                        5 is bits
0,1,2,3


Now lets deal with higher numbers

        Movlw           0xEF            ; w reg has d=239: b=11101111
        DAW                             ; do decimal adjustments
        Movwf           BCD_REG ; BCD_REG has d=85 h=55 b=10101010


Second digit (F)                15      ; decimal
First  digit (E)     + 14       ; decimal
Result               155        ; 1 means C=1: 5 is bis 4,5,6,7  and
                                                        5 is bits
0,1,2,3


Andre Abelian

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