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yosys/tests/symfpu/run-test.sh
Krystine Sherwin 5c99ff204b
symfpu: Verifying rounding modes
Works for everything but muladd.
Which I saw coming, but am still frustrated by.
2026-01-21 13:10:57 +13:00

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#!/usr/bin/env bash
set -eu
source ../gen-tests-makefile.sh
rm -f *_edges.*
prove_rm() {
op=$1
rm=$2
defs=$3
ys_file=${op}_${rm}_edges.ys
echo """\
symfpu -op $op -rm $rm
sat -prove-asserts -verify
chformal -remove
opt
read_verilog -sv -formal $defs -D${rm} edges.sv
chformal -lower
prep -top edges -flatten
sat -set-assumes -prove-asserts -verify
""" > $ys_file
}
prove_op() {
op=$1
defs=$2
rms="RNE RNA RTP RTN RTZ"
for rm in $rms; do
prove_rm $op $rm "$defs"
done
}
prove_op sqrt "-DSQRT"
prove_op add "-DADD -DADDSUB -DADDS"
prove_op sub "-DSUB -DADDSUB -DADDS"
prove_op mul "-DMUL -DMULS"
prove_op div "-DDIV"
# prove_op muladd "-DMULADD -DMULS -DADDS"
generate_mk --yosys-scripts