diff options
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index f13740865..6f8254b59 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -341,6 +341,7 @@ struct SynthXilinxPass : public ScriptPass if (check_label("map_dsp", "(skip if '-nodsp')")) { if (!nodsp || help_mode) { + run("memory_dff"); // xilinx_dsp will merge registers, reserve memory port registers first // NB: Xilinx multipliers are signed only run("techmap -map +/mul2dsp.v -map +/xilinx/dsp_map.v -D DSP_A_MAXWIDTH=25 " "-D DSP_A_MAXWIDTH_PARTIAL=18 -D DSP_B_MAXWIDTH=18 " // Partial multipliers are intentionally |