Rotate_short_left( ) function, Syntax, Example – Echelon Neuron C User Manual

Page 149: Rotate_short_right( ) function

Neuron C Reference Guide

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// k now contains 0x87E0
}

rotate_short_left( )

Function

The rotate_short_left( ) function returns the bit-rotated value of

arg

. The bit

positions are rotated the number of places determined by the

count

argument.

The signedness of the argument does not affect the result. Bits that are rotated
out from the upper end of the value are rotated back in at the lower end. See also

rotate_long_left( ), rotate_long_right( ), and rotate_short_right( ).

Syntax

#include
short rotate_short_left (short

arg

, unsigned

count

);

Example

#include

void f(void)
{
short

s = 0x3F;

s = rotate_short_left(s, 3);

// s now contains 0xF9
}

rotate_short_right( )

Function

The rotate_short_right( ) function returns the bit-rotated value of

arg

. The bit

positions are rotated the number of places determined by the

count

argument.

The signedness of the argument does not affect the result. Bits that are rotated

out from the lower end of the value are rotated back in at the upper end. See also

rotate_long_left( ), rotate_long_right( ), and rotate_short_left( ).

Syntax

#include

short rotate_short_right (short

arg

, unsigned

count

);

Example

#include

void f(void)
{
short

s = 0x3F;

s = rotate_short_right(s, 3);

// s now contains 0xE7