diff options
Diffstat (limited to 'techlibs/xilinx/abc9_model.v')
| -rw-r--r-- | techlibs/xilinx/abc9_model.v | 102 |
1 files changed, 83 insertions, 19 deletions
diff --git a/techlibs/xilinx/abc9_model.v b/techlibs/xilinx/abc9_model.v index 782c53ab6..f83e97a2a 100644 --- a/techlibs/xilinx/abc9_model.v +++ b/techlibs/xilinx/abc9_model.v @@ -24,30 +24,40 @@ // Necessary to make these an atomic unit so that // ABC cannot optimise just one of the MUXF7 away // and expect to save on its delay -(* abc9_box_id = 3, lib_whitebox *) +(* abc9_box, lib_whitebox *) module \$__XILINX_MUXF78 (output O, input I0, I1, I2, I3, S0, S1); assign O = S1 ? (S0 ? I3 : I2) : (S0 ? I1 : I0); -endmodule - -module \$__ABC9_FF_ (input D, output Q); -endmodule - -(* abc9_box_id = (9000+DELAY) *) -module \$__ABC9_DELAY (input I, output O); - parameter DELAY = 0; + specify + (I0 => O) = 294; + (I1 => O) = 297; + (I2 => O) = 311; + (I3 => O) = 317; + (S0 => O) = 390; + (S1 => O) = 273; + endspecify endmodule // Box to emulate async behaviour of FDC* -(* abc9_box_id = 1000, lib_whitebox *) +(* abc9_box, lib_whitebox *) module \$__ABC9_ASYNC0 (input A, S, output Y); assign Y = S ? 1'b0 : A; + specify + (A => Y) = 0; + // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L270 + (S => Y) = 764; + endspecify endmodule // Box to emulate async behaviour of FDP* -(* abc9_box_id = 1001, lib_whitebox *) +(* abc9_box, lib_whitebox *) module \$__ABC9_ASYNC1 (input A, S, output Y); assign Y = S ? 1'b1 : A; + specify + (A => Y) = 0; + // https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L270 + (S => Y) = 764; + endspecify endmodule // Box to emulate comb/seq behaviour of RAM{32,64} and SRL{16,32} @@ -56,12 +66,32 @@ endmodule // is only committed on the next clock edge). // To model the combinatorial path, such cells have to be split // into comb and seq parts, with this box modelling only the former. -(* abc9_box_id=2000 *) -module \$__ABC9_LUT6 (input A, input [5:0] S, output Y); +(* abc9_box *) +module \$__ABC9_RAM6 (input A, input [5:0] S, output Y); + specify + (A => Y) = 0; + (S[0] => Y) = 642; + (S[1] => Y) = 631; + (S[2] => Y) = 472; + (S[3] => Y) = 407; + (S[4] => Y) = 238; + (S[5] => Y) = 127; + endspecify endmodule // Box to emulate comb/seq behaviour of RAM128 -(* abc9_box_id=2001 *) -module \$__ABC9_LUT7 (input A, input [6:0] S, output Y); +(* abc9_box *) +module \$__ABC9_RAM7 (input A, input [6:0] S, output Y); + specify + (A => Y) = 0; + // https://github.com/SymbiFlow/prjxray-db/blob/1c85daf1b115da4d27ca83c6b89f53a94de39748/artix7/timings/slicel.sdf#L867 + (S[0] => Y) = 642 + 223 /* to cross F7BMUX */ + 174 /* CMUX */; + (S[1] => Y) = 631 + 223 /* to cross F7BMUX */ + 174 /* CMUX */; + (S[2] => Y) = 472 + 223 /* to cross F7BMUX */ + 174 /* CMUX */; + (S[3] => Y) = 407 + 223 /* to cross F7BMUX */ + 174 /* CMUX */; + (S[4] => Y) = 238 + 223 /* to cross F7BMUX */ + 174 /* CMUX */; + (S[5] => Y) = 127 + 223 /* to cross F7BMUX */ + 174 /* CMUX */; + (S[6] => Y) = 0 + 296 /* to select F7BMUX */ + 174 /* CMUX */; + endspecify endmodule // Boxes used to represent the comb behaviour of various modes @@ -77,9 +107,43 @@ module __NAME__ ( input [47:0] $PCOUT, output [47:0] P, output [47:0] PCOUT); -endmodule """ -(* abc9_box_id=3000 *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT) -(* abc9_box_id=3001 *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT_DPORT) -(* abc9_box_id=3002 *) `ABC9_DSP48E1($__ABC9_DSP48E1) +(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT) + specify + ($A *> P) = 2823; + ($B *> P) = 2690; + ($C *> P) = 1325; + ($P *> P) = 0; + ($A *> PCOUT) = 2970; + ($B *> PCOUT) = 2838; + ($C *> PCOUT) = 1474; + ($PCOUT *> PCOUT) = 0; + endspecify +endmodule +(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT_DPORT) + specify + ($A *> P) = 3806; + ($B *> P) = 2690; + ($C *> P) = 1325; + ($D *> P) = 3700; + ($P *> P) = 0; + ($A *> PCOUT) = 3954; + ($B *> PCOUT) = 2838; + ($C *> PCOUT) = 1474; + ($D *> PCOUT) = 3700; + ($PCOUT *> PCOUT) = 0; + endspecify +endmodule +(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1) + specify + ($A *> P) = 1523; + ($B *> P) = 1509; + ($C *> P) = 1325; + ($P *> P) = 0; + ($A *> PCOUT) = 1671; + ($B *> PCOUT) = 1658; + ($C *> PCOUT) = 1474; + ($PCOUT *> PCOUT) = 0; + endspecify +endmodule `undef ABC9_DSP48E1 |