abc9_ops: add -prep_bypass for auto bypass boxes; refactor

Eliminate need for abc9_{,un}map.v in xilinx
-prep_dff_{hier,unmap} -> -prep_hier

1 files changed, 0 insertions, 171 deletions

diff --git a/techlibs/xilinx/abc9_model.v b/techlibs/xilinx/abc9_model.v
index 2d109ef8a..db44ff00b 100644
--- a/techlibs/xilinx/abc9_model.v
+++ b/techlibs/xilinx/abc9_model.v
@@ -37,174 +37,3 @@ module \$__XILINX_MUXF78 (output O, input I0, I1, I2, I3, S0, S1);
     (S1 => O) = 273;
   endspecify
 endmodule
-
-// Box to emulate async behaviour of FDC*
-(* 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, 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}
-//   Necessary since RAMD* and SRL* have both combinatorial (i.e.
-//   same-cycle read operation) and sequential (write operation
-//   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 *)
-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 *)
-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 DSP48E1
-(* abc9_box *)
-module $__ABC9_DSP48E1 (
-    input [29:0] $A,
-    input [17:0] $B,
-    input [47:0] $C,
-    input [24:0] $D,
-    input [47:0] $P,
-    input [47:0] $PCIN,
-    input [47:0] $PCOUT,
-    output [47:0] P,
-    output [47:0] PCOUT
-);
-    parameter integer ADREG = 1;
-    parameter integer AREG = 1;
-    parameter integer BREG = 1;
-    parameter integer CREG = 1;
-    parameter integer DREG = 1;
-    parameter integer MREG = 1;
-    parameter integer PREG = 1;
-    parameter USE_DPORT = "FALSE";
-    parameter USE_MULT = "MULTIPLY";
-
-    function integer \A.P.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")     \A.P.comb = 2823;
-        else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \A.P.comb = 3806;
-        else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")    \A.P.comb = 1523;
-    end
-    endfunction
-    function integer \A.PCOUT.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")     \A.PCOUT.comb = 2970;
-        else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \A.PCOUT.comb = 3954;
-        else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")    \A.PCOUT.comb = 1671;
-    end
-    endfunction
-    function integer \B.P.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")     \B.P.comb = 2690;
-        else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \B.P.comb = 2690;
-        else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")    \B.P.comb = 1509;
-    end
-    endfunction
-    function integer \B.PCOUT.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")     \B.PCOUT.comb = 2838;
-        else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \B.PCOUT.comb = 2838;
-        else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")    \B.PCOUT.comb = 1658;
-    end
-    endfunction
-    function integer \C.P.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")     \C.P.comb = 1325;
-        else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \C.P.comb = 1325;
-        else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")    \C.P.comb = 1325;
-    end
-    endfunction
-    function integer \C.PCOUT.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")     \C.PCOUT.comb = 1474;
-        else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") \C.PCOUT.comb = 1474;
-        else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")    \C.PCOUT.comb = 1474;
-    end
-    endfunction
-    function integer \D.P.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE")      \D.P.comb = 3717;
-    end
-    endfunction
-    function integer \D.PCOUT.comb ;
-    begin
-        if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE")      \D.PCOUT.comb = 3700;
-    end
-    endfunction
-
-	specify
-		($P *> P) 			= 0;
-		($PCOUT *> PCOUT)	= 0;
-	endspecify
-
-    // Identical comb delays to DSP48E1 in cells_sim.v
-    generate
-        if (PREG == 0 && MREG == 0 && AREG == 0 && ADREG == 0)
-            specify
-                ($A *> P) =      \A.P.comb ();
-                ($A *> PCOUT) =  \A.PCOUT.comb ();
-            endspecify
-
-        if (PREG == 0 && MREG == 0 && BREG == 0)
-            specify
-                ($B *> P) =      \B.P.comb ();
-                ($B *> PCOUT) =  \B.PCOUT.comb ();
-            endspecify
-
-        if (PREG == 0 && CREG == 0)
-            specify
-                ($C *> P) =      \C.P.comb ();
-                ($C *> PCOUT) =  \C.PCOUT.comb ();
-            endspecify
-
-        if (PREG == 0 && MREG == 0 && ADREG == 0 && DREG == 0)
-            specify
-                ($D *> P) =      \D.P.comb ();
-                ($D *> PCOUT) =  \D.PCOUT.comb ();
-            endspecify
-
-        if (PREG == 0)
-            specify
-                ($PCIN *> P) =       1107;
-                ($PCIN *> PCOUT) =   1255;
-            endspecify
-    endgenerate
-endmodule