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| author | Dan Ravensloft <dan.ravensloft@gmail.com> | 2020-08-26 21:47:06 +0100 |
|---|---|---|
| committer | Marcelina Kościelnicka <mwk@0x04.net> | 2020-08-28 23:44:16 +0200 |
| commit | 028f96e53686d030a12646ba2d81e2d23a7aebe1 (patch) | |
| tree | bd8bdb537663cd5d9b4e2c7d207f78f80a355441 /techlibs/intel_alm | |
| parent | c75d8c7439f84111f537c21c01eaae9df5e935f0 (diff) | |
| download | yosys-028f96e53686d030a12646ba2d81e2d23a7aebe1.tar.gz yosys-028f96e53686d030a12646ba2d81e2d23a7aebe1.tar.bz2 yosys-028f96e53686d030a12646ba2d81e2d23a7aebe1.zip | |
intel_alm: better map wide but shallow multiplies
Diffstat (limited to 'techlibs/intel_alm')
| -rw-r--r-- | techlibs/intel_alm/synth_intel_alm.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/techlibs/intel_alm/synth_intel_alm.cc b/techlibs/intel_alm/synth_intel_alm.cc index faa405df7..6719eb65c 100644 --- a/techlibs/intel_alm/synth_intel_alm.cc +++ b/techlibs/intel_alm/synth_intel_alm.cc @@ -214,10 +214,14 @@ struct SynthIntelALMPass : public ScriptPass { run("techmap -map +/mul2dsp.v [...]", "(unless -nodsp)"); } else if (!nodsp) { // Cyclone V supports 9x9 multiplication, Cyclone 10 GX does not. - run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=27 -D DSP_B_MAXWIDTH=27 -D DSP_A_MINWIDTH=19 -D DSP_B_MINWIDTH=19 -D DSP_NAME=__MUL27X27"); + run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=27 -D DSP_B_MAXWIDTH=27 -D DSP_A_MINWIDTH=19 -D DSP_B_MINWIDTH=4 -D DSP_NAME=__MUL27X27"); + run("chtype -set $mul t:$__soft_mul"); + run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=27 -D DSP_B_MAXWIDTH=27 -D DSP_A_MINWIDTH=4 -D DSP_B_MINWIDTH=19 -D DSP_NAME=__MUL27X27"); run("chtype -set $mul t:$__soft_mul"); if (family_opt == "cyclonev") { - run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=18 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=10 -D DSP_B_MINWIDTH=10 -D DSP_NAME=__MUL18X18"); + run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=18 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=10 -D DSP_B_MINWIDTH=4 -D DSP_NAME=__MUL18X18"); + run("chtype -set $mul t:$__soft_mul"); + run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=18 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=4 -D DSP_B_MINWIDTH=10 -D DSP_NAME=__MUL18X18"); run("chtype -set $mul t:$__soft_mul"); run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=9 -D DSP_B_MAXWIDTH=9 -D DSP_A_MINWIDTH=4 -D DSP_B_MINWIDTH=4 -D DSP_NAME=__MUL9X9"); run("chtype -set $mul t:$__soft_mul"); |