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xilinx: cleanup DSP48E1 handling for abc9

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This commit is contained in:
Eddie Hung 2020-03-04 11:28:14 -08:00
parent f65fc845e5
commit 512596760b
3 changed files with 125 additions and 86 deletions
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154
techlibs/xilinx/abc9_model.v
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@ -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
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
(* 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
endmodule
`undef ABC9_DSP48E1