The HEX utility is designed to manipulate ASCII hex formatted files as
output by cross-assemblers and linkers for microprocessors (Z80, 8085,
68000, etc.).  HEX supports many of  the  popular  ASCII  hex  formats
including:  INTEL, TEKHEX, Extended TEKHEX, Motorola, and MOSTEK.  The
principle components of the HEX utility is a 64K byte  virtual  memory
area  that  allows the user to manipulate code in memory as if it were
in the target machine.  Note that the 64Kbyte virtual  memory  can  be
extended  to  cover  the  entire  2**32  address  range via the OFFSET
command.  HEX will handle 16, 24,  or  32-bit  addresses.   Operations
that can be performed on a hex file include:

INPUT FUNCTIONS:  The commands READ and COMPARE can be  used  to  read
hex  files  into virtual memory or compare hex files with the contents
of virtual memory.

OUTPUT FUNCTIONS:  The WRITE and APPEND commands write the contents of
virtual memory to a new file or append them to an existing one.

ARITHMETIC AND  LOGICAL  FUNCTIONS:   The  commands  AND,  COMPLEMENT,
DECREMENT, DIVIDE, INCREMENT, MULTIPLY, NEGATE, OR, REMAINDER, ROTATE,
SHIFT, and XOR perform arithmetic  or  logical  manipulations  on  the
selected range of virtual memory.

PROGRAM PARAMETER FUNCTIONS:  Several functions  including  ADDRESSING
MODE,  FILL,  FORMAT,  INIT,  NAME,  OFFSET,  and TRANSFER set program
parameters such as the transfer address or the program name.

VIRTUAL MEMORY MANIPULATION FUNCTIONS:  The contents of virtual memory
may be manipulated through such commands as COPY, DISPLAY, EDIT, MOVE,
REVERSE, and SEARCH.

MISCELLANEOUS COMMANDS:  Other  functions  include  online  help,  the
ability  to  spawn  DCL  commands, and the ability to process indirect
command files.