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SET BIT

Posted on Dec 04, 2007 at 01:30 PM 21 Views

Good Evening to all,

can anybody explains me how SET BIT bitpos OF byte_string [TO val] get works.

I concluded that it will set the bit of position (bitpos) of string (byte_string).

buti am nt getting how it works ?

can anybody briefly explains me how this get works and how this program works?

DATA hex TYPE x LENGTH 1.

DO 8 TIMES.

CLEAR hex.

SET BIT sy-index OF hex. "how it works

WRITE hex.

ENDDO.

output is: 80 40 20 10 08 04 02 01

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  • author's profile photo Matthew Billingham
    Matthew Billingham
    Posted on Dec 04, 2007 at 01:40 PM
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    Through each loop iteration, the variable hex is cleared, so contains binary value 00000000.

    First time through the loop. sy-index is 1, and so bit 1 is set, so you have binary value 00000001. Which is hex 01.

    Next time through the loop, sy-index is 2, and so bit 2 is set, so you have binary value 00000010. Which is hex 02.

    Next time through the loop, sy-index is 3, and so bit 3 is set, so you have binary value 00000100. Which is hex 04.

    and so on.

    matt

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