pTAL Conversion Guide

pTAL Built-In Routines

pTAL Conversion Guide—527302-002

18-11

$ATOMIC_AND

$ATOMIC_AND, an atomic operation, performs a logical “and” operation (bitwise

“and”—LAND) on a variable and a mask and stores the in the variable.

var input,output

sINT:variable

is the variable to which $ATOMIC_AND applies mask.

mask input

INT:value

is a 16-bit mask that $ATOMIC_AND applies to var.

$ATOMIC_AND performs the following operation:

var := var LAND mask

Examples of $ATOMIC_AND:

Sets condition code Yes (according the final value of var )

Sets $CARRY No

Sets $OVERFLOW No

Example 18-3. Call to $ATOMIC_AND Routine

INT var;

INT mask;

$ATOMIC_AND(var, mask);

var value result

%H1234 %HAAAA %H0220

%H1234 %H5555 %H1010

%H6789 %HAAAA %H2288

%H6789 %H5555 %H1010

$ATOMIC_AND ( ) ;

VST608.vsd

var mask,