diff options
Diffstat (limited to 'techlibs/xilinx/abc9_model.v')
| -rw-r--r-- | techlibs/xilinx/abc9_model.v | 154 |
1 files changed, 104 insertions, 50 deletions
diff --git a/techlibs/xilinx/abc9_model.v b/techlibs/xilinx/abc9_model.v index 559439b85..333ac17c0 100644 --- a/techlibs/xilinx/abc9_model.v +++ b/techlibs/xilinx/abc9_model.v @@ -94,10 +94,9 @@ module \$__ABC9_RAM7 (input A, input [6:0] S, output Y); endspecify endmodule -// Boxes used to represent the comb behaviour of various modes -// of DSP48E1 -`define ABC9_DSP48E1(__NAME__) """ -module __NAME__ ( +// 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, @@ -106,50 +105,105 @@ module __NAME__ ( input [47:0] $PCIN, input [47:0] $PCOUT, output [47:0] P, - output [47:0] PCOUT); -""" -(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT) - specify - ($A *> P) = 2823; - ($B *> P) = 2690; - ($C *> P) = 1325; - ($PCIN *> P) = 1107; - ($P *> P) = 0; - ($A *> PCOUT) = 2970; - ($B *> PCOUT) = 2838; - ($C *> PCOUT) = 1474; - ($PCIN *> PCOUT) = 1255; - ($PCOUT *> PCOUT) = 0; - endspecify -endmodule -(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1_MULT_DPORT) - specify - ($A *> P) = 3806; - ($B *> P) = 2690; - ($C *> P) = 1325; - ($D *> P) = 3717; - ($PCIN *> P) = 1107; - ($P *> P) = 0; - ($A *> PCOUT) = 3954; - ($B *> PCOUT) = 2838; - ($C *> PCOUT) = 1474; - ($D *> PCOUT) = 3700; - ($PCIN *> PCOUT) = 1255; - ($PCOUT *> PCOUT) = 0; - endspecify -endmodule -(* abc9_box *) `ABC9_DSP48E1($__ABC9_DSP48E1) - specify - ($A *> P) = 1523; - ($B *> P) = 1509; - ($C *> P) = 1325; - ($PCIN *> P) = 1107; - ($P *> P) = 0; - ($A *> PCOUT) = 1671; - ($B *> PCOUT) = 1658; - ($C *> PCOUT) = 1474; - ($PCIN *> PCOUT) = 1255; - ($PCOUT *> PCOUT) = 0; - endspecify + output [47:0] PCOUT +); + 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) + 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 && 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 -`undef ABC9_DSP48E1 |