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Determines if all the specified bits in a value are clear according to a specified bit mask.

Files

lib_def.h

Prototype

          DEF_BIT_IS_CLR(val, mask);

Arguments

val

Value to test if the specified bits are clear.

...

val and mask should be unsigned integers. NULL mask (i.e., mask of value 0) allowed; returns DEF_NO since no mask bits specified.

Example Usage

          CPU_INT16U  alarms;
          CPU_INT16U  alarms_mask;
          CPU_INT16U  alarms_clr;


          alarms      = 0x07F0u;
          alarms_mask = DEF_BIT_04 | DEF_BIT_03;
          alarms_clr  = DEF_BIT_IS_CLR(alarms, alarms_mask);