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multpass.cc -> booth.cc, added author/support contact info

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andyfox-rushc 2023-09-11 11:39:13 -07:00
parent 1b5287af59
commit a2c8e47295
2 changed files with 9 additions and 8 deletions
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5
passes/techmap/Makefile.inc
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@ -4,7 +4,7 @@ OBJS += passes/techmap/techmap.o
OBJS += passes/techmap/simplemap.o OBJS += passes/techmap/simplemap.o
OBJS += passes/techmap/dfflibmap.o OBJS += passes/techmap/dfflibmap.o
OBJS += passes/techmap/maccmap.o OBJS += passes/techmap/maccmap.o
OBJS += passes/techmap/multpass.o OBJS += passes/techmap/booth.o
OBJS += passes/techmap/libparse.o OBJS += passes/techmap/libparse.o
ifeq ($(ENABLE_ABC),1) ifeq ($(ENABLE_ABC),1)
@ -30,9 +30,6 @@ OBJS += passes/techmap/extract_reduce.o
OBJS += passes/techmap/alumacc.o OBJS += passes/techmap/alumacc.o
OBJS += passes/techmap/dffinit.o OBJS += passes/techmap/dffinit.o
OBJS += passes/techmap/pmuxtree.o OBJS += passes/techmap/pmuxtree.o
OBJS += passes/techmap/bmuxmap.o
OBJS += passes/techmap/demuxmap.o
OBJS += passes/techmap/bwmuxmap.o
OBJS += passes/techmap/muxcover.o OBJS += passes/techmap/muxcover.o
OBJS += passes/techmap/aigmap.o OBJS += passes/techmap/aigmap.o
OBJS += passes/techmap/tribuf.o OBJS += passes/techmap/tribuf.o

12
passes/techmap/multpass.cc → passes/techmap/booth.cc
View file

@ -1,6 +1,7 @@
/* /*
* yosys -- Yosys Open SYnthesis Suite * yosys -- Yosys Open SYnthesis Suite
* *
* Copyright (C) 2023 Andy Fox <andy@rushc.com> https://www.linkedin.com/in/awfox/
* *
* Permission to use, copy, modify, and/or distribute this software for any * Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above * purpose with or without fee is hereby granted, provided that the above
@ -17,8 +18,8 @@
*/ */
/* /*
MultPass Booth Pass
-------- ----------
Replace $mul with booth encoded multipliers. Two different Replace $mul with booth encoded multipliers. Two different
architectures used for signed/unsigned. architectures used for signed/unsigned.
@ -31,13 +32,13 @@
http://i.stanford.edu/pub/cstr/reports/csl/tr/94/617/CSL-TR-94-617.pdf http://i.stanford.edu/pub/cstr/reports/csl/tr/94/617/CSL-TR-94-617.pdf
How to use: How to use:
Add multpass to your yosys script eg: Add booth pass to your yosys script eg:
read_verilog smultiply5_rtl.v read_verilog smultiply5_rtl.v
opt opt
wreduce wreduce
opt opt
multpass booth
alumacc alumacc
maccmap maccmap
opt opt
@ -46,6 +47,9 @@
abc -liberty NangateOpenCellLibrary_typical.lib abc -liberty NangateOpenCellLibrary_typical.lib
stat -liberty NangateOpenCellLibrary_typical.lib stat -liberty NangateOpenCellLibrary_typical.lib
write_verilog -norename booth_final.v write_verilog -norename booth_final.v
or in generic synthesis call with -booth argument:
synth -top my_design -booth
*/ */
#include "kernel/sigtools.h" #include "kernel/sigtools.h"