NAME

       BOOM - BOOlean Minimization

SYNOPSIS

       boom [-VTOAP] [-l num] [-d num] [-i num] [-a num] [-sjbgpwtmorn]
                      filename [outname]

DESCRIPTION

       BOOM is used for the first step of the synthesis process.  It optimizes a behavioural description using a
       Reduced Ordered Binary Decision Diagram representation of logic functions.   The  file  filename  is  the
       input  behavioural description and must be written in vbe(5) format.  The resulting behavioural optimized
       description is saved with the name outname or input_name_o in vbe(5) format.

ENVIRONMENT VARIABLES

       MBK_WORK_LIB(1)
                 indicates the path to the read/write directory for the session.

OPTIONS

       -V        Verbose mode on.  Each step of the optimization is displayed on the standard output.

       -T        Trace mode on.  Some debug informations are displayed on the standard output.

       -O        Reverses initial Bdd variables order.

       -A        BOOM performs a local optimization and keeps the architecture of  the  initial  description  by
                 saving  most of the intermediate signals.  This mode is well-suited for big or regular circuits
                 such as multipliers, adders.  By default BOOM performs a global optimization and  removes  most
                 of  the  intermediate  signals  so that the outputs are expressed in terms of the inputs or the
                 internal registers.  This mode is well-suited for random circuits such as FSMs.

       -P        Uses a parameter file input_name.boom describing optimization directives and constraints.  (see
                 below for the exact syntax)

                 # Example of .boom file

                 #
                 # The list of auxiliary signals that have to be kept
                 # during optimization.
                 # Generally carry signals, ram address signals etc ...
                 #
                 BEGIN_KEEP

                 carry[3:0]
                 ram_address[3:0]

                 END

                 #
                 # The list of auxiliary signals which assigned
                 # expression won't be modified.
                 # Generally it's ram output signals.
                 #
                 BEGIN_DONT_TOUCH
                 ram_out[7:0]
                 END

       -l num    Specifies the optimization level [0-3] (default is 0, low level).

       -d num    Specifies the delay optimization percent (default is 0% delay, 100% surface).

       -i num    Specifies the number of iterations for the choosen optimization algorithm (for experts only).

       -a num    Specifies the amplitude during bdd reordering (for experts only).

       -sjbgpwtmorn
                 Specifies which algorithm has to be used for the boolean optimization.

SEE ALSO

       boom(5), vbe(5), asimut(1), boog(1), MBK_WORK_LIB(1).