github.com/YosysHQ.yosys
1
0
Fork 0
mirror of synced 2026-04-26 04:08:28 +00:00
Code Issues Releases Wiki Activity

abc9_ops: add -prep_bypass for auto bypass boxes; refactor

Browse Source 
Eliminate need for abc9_{,un}map.v in xilinx
-prep_dff_{hier,unmap} -> -prep_hier
This commit is contained in:
Eddie Hung
2020-04-21 12:22:39 -07:00
parent bb840cca9c
commit 7cd3f4a79b
11 changed files with 714 additions and 988 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
techlibs/ecp5/synth_ecp5.cc
View File

@@ -316,7 +316,7 @@ struct SynthEcp5Pass : public ScriptPass
if (!nodffe)
run("dff2dffe -direct-match $_DFF_* -direct-match $__DFFS_*");
if ((abc9 && dff) || help_mode)
run("zinit -all", "(-abc9 and -dff only)");
run("zinit -all t:$_DFF_?_ t:$_DFFE_??_ t:$__DFFS*", "(only if -abc9 and -dff");
run(stringf("techmap -D NO_LUT %s -map +/ecp5/cells_map.v", help_mode ? "[-D ASYNC_PRLD]" : (asyncprld ? "-D ASYNC_PRLD" : "")));
run("opt_expr -undriven -mux_undef");
run("simplemap");