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| author | Eddie Hung <eddie@fpgeh.com> | 2019-08-09 15:19:33 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-08-09 15:19:33 -0700 |
| commit | 0b5b56c1ecab78d126bbab13598c184f5e28cccc (patch) | |
| tree | 2f40882c2140253ca83a48a3eca75fda7df51f71 /techlibs | |
| parent | a002eba14a9895c7330a2741a49de02faf1af06f (diff) | |
| download | yosys-0b5b56c1ecab78d126bbab13598c184f5e28cccc.tar.gz yosys-0b5b56c1ecab78d126bbab13598c184f5e28cccc.tar.bz2 yosys-0b5b56c1ecab78d126bbab13598c184f5e28cccc.zip | |
Pack partial-product adder DSP48E1 packing
Diffstat (limited to 'techlibs')
| -rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 7b1fe5e3b..a54b3ac52 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -287,6 +287,8 @@ struct SynthXilinxPass : public ScriptPass if (!nodsp || help_mode) { // NB: Xilinx multipliers are signed only run("techmap -map +/mul2dsp.v -map +/xilinx/dsp_map.v -D DSP_A_MAXWIDTH=25 -D DSP_B_MAXWIDTH=18 -D DSP_SIGNEDONLY=1 -D DSP_NAME=$__MUL25X18", "(skip if '-nodsp')"); + run("opt_expr -fine", " (skip if '-nodsp')"); + run("wreduce", " (skip if '-nodsp')"); run("xilinx_dsp", " (skip if '-nodsp')"); run("chtype -set $mul t:$__soft_mul"," (skip if '-nodsp')"); } |