BOOM(1)

💖 BOOM — it's giving BOOlean Minimization 💖

okay bestie, sit down, hydrate, because we're about to talk about BOOM from the CAO-VLSI Reference Manual (that's section 1 of the manual, iykyk). She's a whole icon and she's about to carry your synthesis pipeline on her back. 🫶

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🌸 ORIGIN 🌸

This software belongs to the ALLIANCE CAD SYSTEM, developed by the ASIM team at LIP6 laboratory of Université Pierre et Marie CURIE, in Paris, France. 💅

• Web : http://asim.lip6.fr/recherche/alliance/
• E-mail : alliance-users@asim.lip6.fr

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✨ SYNOPSIS ✨

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

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🦋 DESCRIPTION 🦋

So BOOM is literally the first step of the synthesis process, main character energy fr fr. She optimizes a behavioural description using a Reduced Ordered Binary Decision Diagram representation of logic functions. 😭 iconic.

The file filename is your input behavioural description, and bestie, it must be written in vbe(5) format. no cap.

The resulting behavioural optimized description gets saved with the name outname — or, if you don't give her one, as input_name_o — also in vbe(5) format. 💖

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🎀 ENVIRONMENT VARIABLES 🎀

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

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👑 OPTIONS 👑

• -V — Verbose mode on. Every single step of the optimization gets displayed on the standard output. she's chatty and we love that. 🗣️
• -T — Trace mode on. Some debug information is displayed on the standard output. 🕵️♀️
• -O — Reverses the initial Bdd variables order. plot twist energy. 🔄
• -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. two completely different vibes, pick your fighter. 💀
• -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). the eternal tradeoff, we stay torn. ⚖️
• -i num — Specifies the number of iterations for the chosen 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. the way she just bundled a whole alphabet together... 💅

ngl bestie, if you're out here reaching for -i or -a without being an expert, maybe take a lil vibe check first. 🙈

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🌈 SEE ALSO 🌈

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

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💜 BUG REPORT 💜

This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. 🫶

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and that's the whole page, periodt. 💅✨

this absolute banger of a manpage was served to you by ASIM/LIP6, dated August 25, 2000. yes she's vintage, yes she still eats. 🎀🦋💖