HP 3000 Manuals

HP FORTRAN 77/iX Reference

BYTE (LOGICAL*1) Format 

A BYTE or LOGICAL*1 datum is always an exact representation of a one-byte
integer whose values can be positive, negative, or zero.

The BYTE format occupies eight bits and has a range of:

     -128 to +127


          Figure 10-1.  BYTE (LOGICAL*1) Format 

A BYTE datum can also be used as a logical value, representing true or
false.  If bit 0 is 1, the value is true; otherwise it is false.

MPE/iX 5.0 Documentation