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diff --git a/src/soc/fu/div/experiment/goldschmidt_div_sqrt.py b/src/soc/fu/div/experiment/goldschmidt_div_sqrt.py
index 1f3f81a4df74891647355d4eefc58964ccc69c90..62a82706964dc839939388af8ca22d02f9bfb7f9 100644 (file)
--- a/src/soc/fu/div/experiment/goldschmidt_div_sqrt.py
+++ b/src/soc/fu/div/experiment/goldschmidt_div_sqrt.py
@@ -1100,6 +1100,7 @@ class GoldschmidtDivOp(enum.Enum):
             d_times_f = Signal.like(state.d * state.f)
             m.d.comb += [
                 d_times_f.eq(state.d * state.f),
+                # round the multiplication up
                 d.eq((d_times_f >> params.expanded_width)
                      + (d_times_f[:params.expanded_width] != 0)),
             ]