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| author | David Shah <dave@ds0.me> | 2018-10-18 19:39:48 +0100 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2018-10-19 15:16:40 +0100 |
| commit | 677b8ed3ca70dad1dec288c274e64ebb0ef4011b (patch) | |
| tree | b10bb6f13e7eb1fb5e866f06984a274d89445c7d | |
| parent | 6514443a5c6bc3361b3229a0603a7d1b805e1aa3 (diff) | |
| download | yosys-677b8ed3ca70dad1dec288c274e64ebb0ef4011b.tar.gz yosys-677b8ed3ca70dad1dec288c274e64ebb0ef4011b.tar.bz2 yosys-677b8ed3ca70dad1dec288c274e64ebb0ef4011b.zip | |
ecp5: Add latch inference
Signed-off-by: David Shah <dave@ds0.me>
| -rw-r--r-- | techlibs/ecp5/Makefile.inc | 1 | ||||
| -rw-r--r-- | techlibs/ecp5/latches_map.v | 11 | ||||
| -rw-r--r-- | techlibs/ecp5/synth_ecp5.cc | 3 |
3 files changed, 12 insertions, 3 deletions
diff --git a/techlibs/ecp5/Makefile.inc b/techlibs/ecp5/Makefile.inc index f45859392..9b6f061bd 100644 --- a/techlibs/ecp5/Makefile.inc +++ b/techlibs/ecp5/Makefile.inc @@ -8,6 +8,7 @@ $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/dram.txt)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/brams_map.v)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/bram.txt)) $(eval $(call add_share_file,share/ecp5,techlibs/ecp5/arith_map.v)) +$(eval $(call add_share_file,share/ecp5,techlibs/ecp5/latches_map.v)) EXTRA_OBJS += techlibs/ecp5/brams_init.mk techlibs/ecp5/brams_connect.mk .SECONDARY: techlibs/ecp5/brams_init.mk techlibs/ecp5/brams_connect.mk diff --git a/techlibs/ecp5/latches_map.v b/techlibs/ecp5/latches_map.v new file mode 100644 index 000000000..c28f88cf7 --- /dev/null +++ b/techlibs/ecp5/latches_map.v @@ -0,0 +1,11 @@ +module \$_DLATCH_N_ (E, D, Q); + wire [1023:0] _TECHMAP_DO_ = "simplemap; opt"; + input E, D; + output Q = !E ? D : Q; +endmodule + +module \$_DLATCH_P_ (E, D, Q); + wire [1023:0] _TECHMAP_DO_ = "simplemap; opt"; + input E, D; + output Q = E ? D : Q; +endmodule diff --git a/techlibs/ecp5/synth_ecp5.cc b/techlibs/ecp5/synth_ecp5.cc index ab56a9444..cb6a4c3d8 100644 --- a/techlibs/ecp5/synth_ecp5.cc +++ b/techlibs/ecp5/synth_ecp5.cc @@ -266,10 +266,7 @@ struct SynthEcp5Pass : public ScriptPass if (abc2 || help_mode) { run("abc", " (only if -abc2)"); } - //TODO -#if 0 run("techmap -map +/ecp5/latches_map.v"); -#endif if (nomux) run("abc -lut 4"); else |