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Merge pull request #170 from mithro/const-lut-out 

icebox_vlog: Fix constant LUT output.
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Clifford Wolf 2018-07-10 21:19:38 +02:00 committed by GitHub
parent 16a9962fb1 d0f654b0c6
commit 28d9f2f1ac
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1 changed files with 2 additions and 2 deletions
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icebox/icebox_vlog.py
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@ -842,9 +842,9 @@ for lut in luts_queue:
else: else:
always_stmts.append("/* FF %2d %2d %2d */ assign %s = %s;" % (lut[0], lut[1], lut[2], net_out, net_lout)) always_stmts.append("/* FF %2d %2d %2d */ assign %s = %s;" % (lut[0], lut[1], lut[2], net_out, net_lout))
if not "1" in lut_bits: if not "1" in lut_bits:
const_assigns.append([net_out, "1'b0"]) const_assigns.append([net_lout, "/* LUT %2d %2d %2d */ 1'b0" % (lut[0], lut[1], lut[2])])
elif not "0" in lut_bits: elif not "0" in lut_bits:
const_assigns.append([net_out, "1'b1"]) const_assigns.append([net_lout, "/* LUT %2d %2d %2d */ 1'b1" % (lut[0], lut[1], lut[2])])
else: else:
def make_lut_expr(bits, sigs): def make_lut_expr(bits, sigs):
if not sigs: if not sigs: