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Merge pull request #1603 from whitequark/ice40-ram_style

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ice40/ecp5: add support for both 1364.1 and Synplify/LSE RAM/ROM attributes
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whitequark 2020-04-10 14:51:01 +00:00 • committed by GitHub
commit 93ef516d91
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12 changed files with 837 additions and 51 deletions
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4
techlibs/ecp5/synth_ecp5.cc
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@ -279,7 +279,9 @@ struct SynthEcp5Pass : public ScriptPass
if (check_label("map_ffram"))
{
run("opt -fast -mux_undef -undriven -fine");
run("memory_map");
run("memory_map -iattr -attr !ram_block -attr !rom_block -attr logic_block "
"-attr syn_ramstyle=auto -attr syn_ramstyle=registers "
"-attr syn_romstyle=auto -attr syn_romstyle=logic");
run("opt -undriven -fine");
}