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Scilab help >> Xcos > palettes > Integer palette > BITSET

BITSET

Set a Bit

Block Screenshot

Description

This block sets to 1 the specified bit of its input. The user gives the bit index in the field Index of Bit with index 0, as that of the least significant bit.The operation can be summarized by this expression:

i.e. a bitwise OR between Input and Mask, an integer of the same length as the input with a value 1 for the bit to set and a value 0 for the other bits.

Data types

The block supports the following types :

  • Input : scalar. All Scilab's integer type (Data Type parameter).

  • Output : scalar. Same type than input.

Dialog box

  • Data Type (3:int32, 4:int16, 5int8, ...)

    It indicates the integer type of the input (output) data: between 3 and 8.

    Properties : Type 'vec' of size 1.

  • Index of Bit (0 is least significant)

    It indicate the index of the bit to set. The index must be, when the type is:

    • int32 or uint32: positive and less than 32.

    • int16 or uint16: positive and less than 16.

    • int8 or uint8: positive and less than 8.

    Properties : Type 'vec' of size 1.

Default properties

  • always active: no

  • direct-feedthrough: yes

  • zero-crossing: no

  • mode: no

  • regular inputs:

    - port 1 : size [1,1] / type 3

  • regular outputs:

    - port 1 : size [1,1] / type 3

  • number/sizes of activation inputs: 0

  • number/sizes of activation outputs: 0

  • continuous-time state: no

  • discrete-time state: no

  • object discrete-time state: no

  • name of computational function: bit_set_32

Example

Below a simple use case of the block. Open this example in Xcos

Computational function

  • SCI/modules/scicos_blocks/src/c/bit_set_32.c

  • SCI/modules/scicos_blocks/src/c/bit_set_16.c

  • SCI/modules/scicos_blocks/src/c/bit_set_8.c

See also

Authors

Fady NASSIF - INRIA

<< BITCLEAR Integer palette CONVERT >>

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Last updated:
Thu Mar 03 10:59:46 CET 2011