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Merge remote-tracking branch 'origin/master' into eddie/abc9_dsp_refactor

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Eddie Hung 2020-01-02 12:48:07 -08:00
commit 3012e9eebc
15 changed files with 82 additions and 57 deletions
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12
techlibs/xilinx/cells_sim.v
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@ -2315,7 +2315,7 @@ module DSP48E1 (
endfunction
initial begin
`ifdef __ICARUS__
`ifndef YOSYS
if (AUTORESET_PATDET != "NO_RESET") $fatal(1, "Unsupported AUTORESET_PATDET value");
if (SEL_MASK != "MASK") $fatal(1, "Unsupported SEL_MASK value");
if (SEL_PATTERN != "PATTERN") $fatal(1, "Unsupported SEL_PATTERN value");
@ -2478,12 +2478,12 @@ module DSP48E1 (
case (OPMODEr[1:0])
2'b00: X = 48'b0;
2'b01: begin X = $signed(Mrx);
`ifdef __ICARUS__
`ifndef YOSYS
if (OPMODEr[3:2] != 2'b01) $fatal(1, "OPMODEr[3:2] must be 2'b01 when OPMODEr[1:0] is 2'b01");
`endif
end
2'b10: begin X = P;
`ifdef __ICARUS__
`ifndef YOSYS
if (PREG != 1) $fatal(1, "PREG must be 1 when OPMODEr[1:0] is 2'b10");
`endif
end
@ -2495,7 +2495,7 @@ module DSP48E1 (
case (OPMODEr[3:2])
2'b00: Y = 48'b0;
2'b01: begin Y = 48'b0; // FIXME: more accurate partial product modelling?
`ifdef __ICARUS__
`ifndef YOSYS
if (OPMODEr[1:0] != 2'b01) $fatal(1, "OPMODEr[1:0] must be 2'b01 when OPMODEr[3:2] is 2'b01");
`endif
end
@ -2509,13 +2509,13 @@ module DSP48E1 (
3'b000: Z = 48'b0;
3'b001: Z = PCIN;
3'b010: begin Z = P;
`ifdef __ICARUS__
`ifndef YOSYS
if (PREG != 1) $fatal(1, "PREG must be 1 when OPMODEr[6:4] i0s 3'b010");
`endif
end
3'b011: Z = Cr;
3'b100: begin Z = P;
`ifdef __ICARUS__
`ifndef YOSYS
if (PREG != 1) $fatal(1, "PREG must be 1 when OPMODEr[6:4] is 3'b100");
if (OPMODEr[3:0] != 4'b1000) $fatal(1, "OPMODEr[3:0] must be 4'b1000 when OPMODEr[6:4] i0s 3'b100");
`endif

6
techlibs/xilinx/synth_xilinx.cc
View file

@ -108,7 +108,7 @@ struct SynthXilinxPass : public ScriptPass
log(" flatten design before synthesis\n");
log("\n");
log(" -retime\n");
log(" run 'abc' with -dff option\n");
log(" run 'abc' with '-dff -D 1' options\n");
log("\n");
log(" -abc9\n");
log(" use new ABC9 flow (EXPERIMENTAL)\n");
@ -550,9 +550,9 @@ struct SynthXilinxPass : public ScriptPass
}
else {
if (nowidelut)
run("abc -luts 2:2,3,6:5" + string(retime ? " -dff" : ""));
run("abc -luts 2:2,3,6:5" + string(retime ? " -dff -D 1" : ""));
else
run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff -D 1" : ""));
}
run("clean");