mirror of https://github.com/YosysHQ/yosys.git
884 lines
31 KiB
Verilog
884 lines
31 KiB
Verilog
/*
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* yosys -- Yosys Open SYnthesis Suite
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*
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* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
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* 2019 Eddie Hung <eddie@fpgeh.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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// The following techmapping rules are intended to be run (with -max_iter 1)
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// before invoking the `abc9` pass in order to transform the design into
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// a format that it understands.
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`ifdef DFF_MODE
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// For example, (complex) flip-flops are expected to be described as an
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// combinatorial box (containing all control logic such as clock enable
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// or synchronous resets) followed by a basic D-Q flop.
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// Yosys will automatically analyse the simulation model (described in
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// cells_sim.v) and detach any $_DFF_P_ or $_DFF_N_ cells present in
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// order to extract the combinatorial control logic left behind.
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// Specifically, a simulation model similar to the one below:
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//
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// ++===================================++
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// || Sim model ||
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// || /\/\/\/\ ||
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// D -->>-----< > +------+ ||
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// R -->>-----< Comb. > |$_DFF_| ||
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// CE -->>-----< logic >-----| [NP]_|---+---->>-- Q
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// || +--< > +------+ | ||
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// || | \/\/\/\/ | ||
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// || | | ||
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// || +----------------------------+ ||
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// || ||
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// ++===================================++
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//
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// is transformed into:
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//
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// ++==================++
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// || Comb box ||
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// || ||
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// || /\/\/\/\ ||
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// D -->>-----< > ||
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// R -->>-----< Comb. > || +-----------+
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// CE -->>-----< logic >--->>-- $Q --|$__ABC9_FF_|--+-->> Q
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// abc9_ff.Q +-->>-----< > || +-----------+ |
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// | || \/\/\/\/ || |
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// | || || |
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// | ++==================++ |
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// | |
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// +-----------------------------------------------+
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//
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// The purpose of the following FD* rules are to wrap the flop with:
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// (a) a special $__ABC9_FF_ in front of the FD*'s output, indicating to abc9
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// the connectivity of its basic D-Q flop
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// (b) an optional $__ABC9_ASYNC_ cell in front of $__ABC_FF_'s output to
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// capture asynchronous behaviour
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// (c) a special abc9_ff.clock wire to capture its clock domain and polarity
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// (indicated to `abc9' so that it only performs sequential synthesis
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// (with reachability analysis) correctly on one domain at a time)
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// (d) a special abc9_ff.init wire to encode the flop's initial state
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// NOTE: in order to perform sequential synthesis, `abc9' also requires
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// that the initial value of all flops be zero
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// (e) a special _TECHMAP_REPLACE_.abc9_ff.Q wire that will be used for feedback
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// into the (combinatorial) FD* cell to facilitate clock-enable behaviour
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module FDRE (output Q, input C, CE, D, R);
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parameter [0:0] INIT = 1'b0;
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parameter [0:0] IS_C_INVERTED = 1'b0;
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parameter [0:0] IS_D_INVERTED = 1'b0;
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parameter [0:0] IS_R_INVERTED = 1'b0;
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wire QQ, $Q;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDSE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_S_INVERTED(IS_R_INVERTED)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .S(R)
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);
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end
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else begin
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assign Q = QQ;
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FDRE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_R_INVERTED(IS_R_INVERTED)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .R(R)
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);
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end
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endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q(QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, IS_C_INVERTED};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = QQ;
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endmodule
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module FDRE_1 (output Q, input C, CE, D, R);
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parameter [0:0] INIT = 1'b0;
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wire QQ, $Q;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDSE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .S(R)
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);
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end
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else begin
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assign Q = QQ;
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FDRE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .R(R)
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);
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end
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endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q(QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, 1'b1 /* IS_C_INVERTED */};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = QQ;
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endmodule
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module FDSE (output Q, input C, CE, D, S);
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parameter [0:0] INIT = 1'b1;
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parameter [0:0] IS_C_INVERTED = 1'b0;
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parameter [0:0] IS_D_INVERTED = 1'b0;
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parameter [0:0] IS_S_INVERTED = 1'b0;
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wire QQ, $Q;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDRE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_R_INVERTED(IS_S_INVERTED)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .R(S)
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);
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end
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else begin
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assign Q = QQ;
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FDSE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_S_INVERTED(IS_S_INVERTED)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .S(S)
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);
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end endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q(QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, IS_C_INVERTED};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = QQ;
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endmodule
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module FDSE_1 (output Q, input C, CE, D, S);
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parameter [0:0] INIT = 1'b1;
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wire QQ, $Q;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDRE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .R(S)
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);
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end
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else begin
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assign Q = QQ;
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FDSE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .S(S)
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);
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end endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q(QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, 1'b1 /* IS_C_INVERTED */};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = QQ;
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endmodule
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module FDCE (output Q, input C, CE, D, CLR);
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parameter [0:0] INIT = 1'b0;
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parameter [0:0] IS_C_INVERTED = 1'b0;
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parameter [0:0] IS_D_INVERTED = 1'b0;
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parameter [0:0] IS_CLR_INVERTED = 1'b0;
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wire QQ, $Q, $QQ;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDPE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_PRE_INVERTED(IS_CLR_INVERTED)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .PRE(CLR)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC1 below
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);
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// Since this is an async flop, async behaviour is dealt with here
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$__ABC9_ASYNC1 abc_async (.A($QQ), .S(CLR ^ IS_CLR_INVERTED), .Y(QQ));
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end
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else begin
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assign Q = QQ;
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FDCE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_CLR_INVERTED(IS_CLR_INVERTED)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .CLR(CLR)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC0 below
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);
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// Since this is an async flop, async behaviour is dealt with here
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$__ABC9_ASYNC0 abc_async (.A($QQ), .S(CLR ^ IS_CLR_INVERTED), .Y(QQ));
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end endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q($QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, IS_C_INVERTED};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = $QQ;
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endmodule
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module FDCE_1 (output Q, input C, CE, D, CLR);
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parameter [0:0] INIT = 1'b0;
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wire QQ, $Q, $QQ;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDPE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .PRE(CLR)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC1 below
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);
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$__ABC9_ASYNC1 abc_async (.A($QQ), .S(CLR), .Y(QQ));
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end
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else begin
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assign Q = QQ;
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FDCE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .CLR(CLR)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC0 below
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);
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$__ABC9_ASYNC0 abc_async (.A($QQ), .S(CLR), .Y(QQ));
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end endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q($QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, 1'b1 /* IS_C_INVERTED */};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = $QQ;
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endmodule
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module FDPE (output Q, input C, CE, D, PRE);
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parameter [0:0] INIT = 1'b1;
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parameter [0:0] IS_C_INVERTED = 1'b0;
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parameter [0:0] IS_D_INVERTED = 1'b0;
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parameter [0:0] IS_PRE_INVERTED = 1'b0;
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wire QQ, $Q, $QQ;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDCE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_CLR_INVERTED(IS_PRE_INVERTED),
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .CLR(PRE)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC0 below
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);
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$__ABC9_ASYNC0 abc_async (.A($QQ), .S(PRE ^ IS_PRE_INVERTED), .Y(QQ));
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end
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else begin
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assign Q = QQ;
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FDPE #(
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.INIT(1'b0),
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.IS_C_INVERTED(IS_C_INVERTED),
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.IS_D_INVERTED(IS_D_INVERTED),
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.IS_PRE_INVERTED(IS_PRE_INVERTED),
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .PRE(PRE)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC1 below
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);
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$__ABC9_ASYNC1 abc_async (.A($QQ), .S(PRE ^ IS_PRE_INVERTED), .Y(QQ));
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end endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q($QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, IS_C_INVERTED};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = $QQ;
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endmodule
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module FDPE_1 (output Q, input C, CE, D, PRE);
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parameter [0:0] INIT = 1'b1;
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wire QQ, $Q, $QQ;
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generate if (INIT == 1'b1) begin
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assign Q = ~QQ;
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FDCE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(~D), .Q($Q), .C(C), .CE(CE), .CLR(PRE)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC0 below
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);
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$__ABC9_ASYNC0 abc_async (.A($QQ), .S(PRE), .Y(QQ));
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end
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else begin
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assign Q = QQ;
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FDPE_1 #(
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.INIT(1'b0)
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) _TECHMAP_REPLACE_ (
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.D(D), .Q($Q), .C(C), .CE(CE), .PRE(PRE)
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// ^^^ Note that async
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// control is not directly
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// supported by abc9 but its
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// behaviour is captured by
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// $__ABC9_ASYNC1 below
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);
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$__ABC9_ASYNC1 abc_async (.A($QQ), .S(PRE), .Y(QQ));
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end endgenerate
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$__ABC9_FF_ abc9_ff (.D($Q), .Q($QQ));
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// Special signals
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wire [1:0] abc9_ff.clock = {C, 1'b1 /* IS_C_INVERTED */};
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wire [0:0] abc9_ff.init = 1'b0;
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wire [0:0] _TECHMAP_REPLACE_.abc9_ff.Q = $QQ;
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endmodule
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`endif
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// Attach a (combinatorial) black-box onto the output
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// of thes LUTRAM primitives to capture their
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// asynchronous read behaviour
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module RAM32X1D (
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output DPO, SPO,
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(* techmap_autopurge *) input D,
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(* techmap_autopurge *) input WCLK,
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(* techmap_autopurge *) input WE,
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(* techmap_autopurge *) input A0, A1, A2, A3, A4,
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(* techmap_autopurge *) input DPRA0, DPRA1, DPRA2, DPRA3, DPRA4
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);
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parameter INIT = 32'h0;
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parameter IS_WCLK_INVERTED = 1'b0;
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wire $DPO, $SPO;
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RAM32X1D #(
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.INIT(INIT), .IS_WCLK_INVERTED(IS_WCLK_INVERTED)
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) _TECHMAP_REPLACE_ (
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.DPO($DPO), .SPO($SPO),
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.D(D), .WCLK(WCLK), .WE(WE),
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.A0(A0), .A1(A1), .A2(A2), .A3(A3), .A4(A4),
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.DPRA0(DPRA0), .DPRA1(DPRA1), .DPRA2(DPRA2), .DPRA3(DPRA3), .DPRA4(DPRA4)
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);
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$__ABC9_LUT6 spo (.A($SPO), .S({1'b1, A4, A3, A2, A1, A0}), .Y(SPO));
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$__ABC9_LUT6 dpo (.A($DPO), .S({1'b1, DPRA4, DPRA3, DPRA2, DPRA1, DPRA0}), .Y(DPO));
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endmodule
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module RAM64X1D (
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output DPO, SPO,
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(* techmap_autopurge *) input D,
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(* techmap_autopurge *) input WCLK,
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(* techmap_autopurge *) input WE,
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(* techmap_autopurge *) input A0, A1, A2, A3, A4, A5,
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(* techmap_autopurge *) input DPRA0, DPRA1, DPRA2, DPRA3, DPRA4, DPRA5
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);
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parameter INIT = 64'h0;
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parameter IS_WCLK_INVERTED = 1'b0;
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wire $DPO, $SPO;
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RAM64X1D #(
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.INIT(INIT), .IS_WCLK_INVERTED(IS_WCLK_INVERTED)
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) _TECHMAP_REPLACE_ (
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.DPO($DPO), .SPO($SPO),
|
|
.D(D), .WCLK(WCLK), .WE(WE),
|
|
.A0(A0), .A1(A1), .A2(A2), .A3(A3), .A4(A4), .A5(A5),
|
|
.DPRA0(DPRA0), .DPRA1(DPRA1), .DPRA2(DPRA2), .DPRA3(DPRA3), .DPRA4(DPRA4), .DPRA5(DPRA5)
|
|
);
|
|
$__ABC9_LUT6 spo (.A($SPO), .S({A5, A4, A3, A2, A1, A0}), .Y(SPO));
|
|
$__ABC9_LUT6 dpo (.A($DPO), .S({DPRA5, DPRA4, DPRA3, DPRA2, DPRA1, DPRA0}), .Y(DPO));
|
|
endmodule
|
|
|
|
module RAM128X1D (
|
|
output DPO, SPO,
|
|
(* techmap_autopurge *) input D,
|
|
(* techmap_autopurge *) input WCLK,
|
|
(* techmap_autopurge *) input WE,
|
|
(* techmap_autopurge *) input [6:0] A, DPRA
|
|
);
|
|
parameter INIT = 128'h0;
|
|
parameter IS_WCLK_INVERTED = 1'b0;
|
|
wire $DPO, $SPO;
|
|
RAM128X1D #(
|
|
.INIT(INIT), .IS_WCLK_INVERTED(IS_WCLK_INVERTED)
|
|
) _TECHMAP_REPLACE_ (
|
|
.DPO($DPO), .SPO($SPO),
|
|
.D(D), .WCLK(WCLK), .WE(WE),
|
|
.A(A),
|
|
.DPRA(DPRA)
|
|
);
|
|
$__ABC9_LUT7 spo (.A($SPO), .S(A), .Y(SPO));
|
|
$__ABC9_LUT7 dpo (.A($DPO), .S(DPRA), .Y(DPO));
|
|
endmodule
|
|
|
|
module RAM32M (
|
|
output [1:0] DOA,
|
|
output [1:0] DOB,
|
|
output [1:0] DOC,
|
|
output [1:0] DOD,
|
|
(* techmap_autopurge *) input [4:0] ADDRA,
|
|
(* techmap_autopurge *) input [4:0] ADDRB,
|
|
(* techmap_autopurge *) input [4:0] ADDRC,
|
|
(* techmap_autopurge *) input [4:0] ADDRD,
|
|
(* techmap_autopurge *) input [1:0] DIA,
|
|
(* techmap_autopurge *) input [1:0] DIB,
|
|
(* techmap_autopurge *) input [1:0] DIC,
|
|
(* techmap_autopurge *) input [1:0] DID,
|
|
(* techmap_autopurge *) input WCLK,
|
|
(* techmap_autopurge *) input WE
|
|
);
|
|
parameter [63:0] INIT_A = 64'h0000000000000000;
|
|
parameter [63:0] INIT_B = 64'h0000000000000000;
|
|
parameter [63:0] INIT_C = 64'h0000000000000000;
|
|
parameter [63:0] INIT_D = 64'h0000000000000000;
|
|
parameter [0:0] IS_WCLK_INVERTED = 1'b0;
|
|
wire [1:0] $DOA, $DOB, $DOC, $DOD;
|
|
RAM32M #(
|
|
.INIT_A(INIT_A), .INIT_B(INIT_B), .INIT_C(INIT_C), .INIT_D(INIT_D),
|
|
.IS_WCLK_INVERTED(IS_WCLK_INVERTED)
|
|
) _TECHMAP_REPLACE_ (
|
|
.DOA($DOA), .DOB($DOB), .DOC($DOC), .DOD($DOD),
|
|
.WCLK(WCLK), .WE(WE),
|
|
.ADDRA(ADDRA), .ADDRB(ADDRB), .ADDRC(ADDRC), .ADDRD(ADDRD),
|
|
.DIA(DIA), .DIB(DIB), .DIC(DIC), .DID(DID)
|
|
);
|
|
$__ABC9_LUT6 doa0 (.A($DOA[0]), .S({1'b1, ADDRA}), .Y(DOA[0]));
|
|
$__ABC9_LUT6 doa1 (.A($DOA[1]), .S({1'b1, ADDRA}), .Y(DOA[1]));
|
|
$__ABC9_LUT6 dob0 (.A($DOB[0]), .S({1'b1, ADDRB}), .Y(DOB[0]));
|
|
$__ABC9_LUT6 dob1 (.A($DOB[1]), .S({1'b1, ADDRB}), .Y(DOB[1]));
|
|
$__ABC9_LUT6 doc0 (.A($DOC[0]), .S({1'b1, ADDRC}), .Y(DOC[0]));
|
|
$__ABC9_LUT6 doc1 (.A($DOC[1]), .S({1'b1, ADDRC}), .Y(DOC[1]));
|
|
$__ABC9_LUT6 dod0 (.A($DOD[0]), .S({1'b1, ADDRD}), .Y(DOD[0]));
|
|
$__ABC9_LUT6 dod1 (.A($DOD[1]), .S({1'b1, ADDRD}), .Y(DOD[1]));
|
|
endmodule
|
|
|
|
module RAM64M (
|
|
output DOA,
|
|
output DOB,
|
|
output DOC,
|
|
output DOD,
|
|
(* techmap_autopurge *) input [5:0] ADDRA,
|
|
(* techmap_autopurge *) input [5:0] ADDRB,
|
|
(* techmap_autopurge *) input [5:0] ADDRC,
|
|
(* techmap_autopurge *) input [5:0] ADDRD,
|
|
(* techmap_autopurge *) input DIA,
|
|
(* techmap_autopurge *) input DIB,
|
|
(* techmap_autopurge *) input DIC,
|
|
(* techmap_autopurge *) input DID,
|
|
(* techmap_autopurge *) input WCLK,
|
|
(* techmap_autopurge *) input WE
|
|
);
|
|
parameter [63:0] INIT_A = 64'h0000000000000000;
|
|
parameter [63:0] INIT_B = 64'h0000000000000000;
|
|
parameter [63:0] INIT_C = 64'h0000000000000000;
|
|
parameter [63:0] INIT_D = 64'h0000000000000000;
|
|
parameter [0:0] IS_WCLK_INVERTED = 1'b0;
|
|
wire $DOA, $DOB, $DOC, $DOD;
|
|
RAM64M #(
|
|
.INIT_A(INIT_A), .INIT_B(INIT_B), .INIT_C(INIT_C), .INIT_D(INIT_D),
|
|
.IS_WCLK_INVERTED(IS_WCLK_INVERTED)
|
|
) _TECHMAP_REPLACE_ (
|
|
.DOA($DOA), .DOB($DOB), .DOC($DOC), .DOD($DOD),
|
|
.WCLK(WCLK), .WE(WE),
|
|
.ADDRA(ADDRA), .ADDRB(ADDRB), .ADDRC(ADDRC), .ADDRD(ADDRD),
|
|
.DIA(DIA), .DIB(DIB), .DIC(DIC), .DID(DID)
|
|
);
|
|
$__ABC9_LUT6 doa (.A($DOA), .S(ADDRA), .Y(DOA));
|
|
$__ABC9_LUT6 dob (.A($DOB), .S(ADDRB), .Y(DOB));
|
|
$__ABC9_LUT6 doc (.A($DOC), .S(ADDRC), .Y(DOC));
|
|
$__ABC9_LUT6 dod (.A($DOD), .S(ADDRD), .Y(DOD));
|
|
endmodule
|
|
|
|
module SRL16E (
|
|
output Q,
|
|
(* techmap_autopurge *) input A0, A1, A2, A3, CE, CLK, D
|
|
);
|
|
parameter [15:0] INIT = 16'h0000;
|
|
parameter [0:0] IS_CLK_INVERTED = 1'b0;
|
|
wire $Q;
|
|
SRL16E #(
|
|
.INIT(INIT), .IS_CLK_INVERTED(IS_CLK_INVERTED)
|
|
) _TECHMAP_REPLACE_ (
|
|
.Q($Q),
|
|
.A0(A0), .A1(A1), .A2(A2), .A3(A3), .CE(CE), .CLK(CLK), .D(D)
|
|
);
|
|
$__ABC9_LUT6 q (.A($Q), .S({1'b1, A3, A2, A1, A0, 1'b1}), .Y(Q));
|
|
endmodule
|
|
|
|
module SRLC32E (
|
|
output Q,
|
|
output Q31,
|
|
(* techmap_autopurge *) input [4:0] A,
|
|
(* techmap_autopurge *) input CE, CLK, D
|
|
);
|
|
parameter [31:0] INIT = 32'h00000000;
|
|
parameter [0:0] IS_CLK_INVERTED = 1'b0;
|
|
wire $Q;
|
|
SRLC32E #(
|
|
.INIT(INIT), .IS_CLK_INVERTED(IS_CLK_INVERTED)
|
|
) _TECHMAP_REPLACE_ (
|
|
.Q($Q), .Q31(Q31),
|
|
.A(A), .CE(CE), .CLK(CLK), .D(D)
|
|
);
|
|
$__ABC9_LUT6 q (.A($Q), .S({1'b1, A}), .Y(Q));
|
|
endmodule
|
|
|
|
module DSP48E1 (
|
|
(* techmap_autopurge *) output [29:0] ACOUT,
|
|
(* techmap_autopurge *) output [17:0] BCOUT,
|
|
(* techmap_autopurge *) output reg CARRYCASCOUT,
|
|
(* techmap_autopurge *) output reg [3:0] CARRYOUT,
|
|
(* techmap_autopurge *) output reg MULTSIGNOUT,
|
|
(* techmap_autopurge *) output OVERFLOW,
|
|
(* techmap_autopurge *) output reg signed [47:0] P,
|
|
(* techmap_autopurge *) output PATTERNBDETECT,
|
|
(* techmap_autopurge *) output PATTERNDETECT,
|
|
(* techmap_autopurge *) output [47:0] PCOUT,
|
|
(* techmap_autopurge *) output UNDERFLOW,
|
|
(* techmap_autopurge *) input signed [29:0] A,
|
|
(* techmap_autopurge *) input [29:0] ACIN,
|
|
(* techmap_autopurge *) input [3:0] ALUMODE,
|
|
(* techmap_autopurge *) input signed [17:0] B,
|
|
(* techmap_autopurge *) input [17:0] BCIN,
|
|
(* techmap_autopurge *) input [47:0] C,
|
|
(* techmap_autopurge *) input CARRYCASCIN,
|
|
(* techmap_autopurge *) input CARRYIN,
|
|
(* techmap_autopurge *) input [2:0] CARRYINSEL,
|
|
(* techmap_autopurge *) input CEA1,
|
|
(* techmap_autopurge *) input CEA2,
|
|
(* techmap_autopurge *) input CEAD,
|
|
(* techmap_autopurge *) input CEALUMODE,
|
|
(* techmap_autopurge *) input CEB1,
|
|
(* techmap_autopurge *) input CEB2,
|
|
(* techmap_autopurge *) input CEC,
|
|
(* techmap_autopurge *) input CECARRYIN,
|
|
(* techmap_autopurge *) input CECTRL,
|
|
(* techmap_autopurge *) input CED,
|
|
(* techmap_autopurge *) input CEINMODE,
|
|
(* techmap_autopurge *) input CEM,
|
|
(* techmap_autopurge *) input CEP,
|
|
(* techmap_autopurge *) input CLK,
|
|
(* techmap_autopurge *) input [24:0] D,
|
|
(* techmap_autopurge *) input [4:0] INMODE,
|
|
(* techmap_autopurge *) input MULTSIGNIN,
|
|
(* techmap_autopurge *) input [6:0] OPMODE,
|
|
(* techmap_autopurge *) input [47:0] PCIN,
|
|
(* techmap_autopurge *) input RSTA,
|
|
(* techmap_autopurge *) input RSTALLCARRYIN,
|
|
(* techmap_autopurge *) input RSTALUMODE,
|
|
(* techmap_autopurge *) input RSTB,
|
|
(* techmap_autopurge *) input RSTC,
|
|
(* techmap_autopurge *) input RSTCTRL,
|
|
(* techmap_autopurge *) input RSTD,
|
|
(* techmap_autopurge *) input RSTINMODE,
|
|
(* techmap_autopurge *) input RSTM,
|
|
(* techmap_autopurge *) input RSTP
|
|
);
|
|
parameter integer ACASCREG = 1;
|
|
parameter integer ADREG = 1;
|
|
parameter integer ALUMODEREG = 1;
|
|
parameter integer AREG = 1;
|
|
parameter AUTORESET_PATDET = "NO_RESET";
|
|
parameter A_INPUT = "DIRECT";
|
|
parameter integer BCASCREG = 1;
|
|
parameter integer BREG = 1;
|
|
parameter B_INPUT = "DIRECT";
|
|
parameter integer CARRYINREG = 1;
|
|
parameter integer CARRYINSELREG = 1;
|
|
parameter integer CREG = 1;
|
|
parameter integer DREG = 1;
|
|
parameter integer INMODEREG = 1;
|
|
parameter integer MREG = 1;
|
|
parameter integer OPMODEREG = 1;
|
|
parameter integer PREG = 1;
|
|
parameter SEL_MASK = "MASK";
|
|
parameter SEL_PATTERN = "PATTERN";
|
|
parameter USE_DPORT = "FALSE";
|
|
parameter USE_MULT = "MULTIPLY";
|
|
parameter USE_PATTERN_DETECT = "NO_PATDET";
|
|
parameter USE_SIMD = "ONE48";
|
|
parameter [47:0] MASK = 48'h3FFFFFFFFFFF;
|
|
parameter [47:0] PATTERN = 48'h000000000000;
|
|
parameter [3:0] IS_ALUMODE_INVERTED = 4'b0;
|
|
parameter [0:0] IS_CARRYIN_INVERTED = 1'b0;
|
|
parameter [0:0] IS_CLK_INVERTED = 1'b0;
|
|
parameter [4:0] IS_INMODE_INVERTED = 5'b0;
|
|
parameter [6:0] IS_OPMODE_INVERTED = 7'b0;
|
|
|
|
parameter _TECHMAP_CELLTYPE_ = "";
|
|
localparam techmap_guard = (_TECHMAP_CELLTYPE_ != "");
|
|
|
|
`define DSP48E1_INST(__CELL__) """
|
|
__CELL__ #(
|
|
.ACASCREG(ACASCREG),
|
|
.ADREG(ADREG),
|
|
.ALUMODEREG(ALUMODEREG),
|
|
.AREG(AREG),
|
|
.AUTORESET_PATDET(AUTORESET_PATDET),
|
|
.A_INPUT(A_INPUT),
|
|
.BCASCREG(BCASCREG),
|
|
.BREG(BREG),
|
|
.B_INPUT(B_INPUT),
|
|
.CARRYINREG(CARRYINREG),
|
|
.CARRYINSELREG(CARRYINSELREG),
|
|
.CREG(CREG),
|
|
.DREG(DREG),
|
|
.INMODEREG(INMODEREG),
|
|
.MREG(MREG),
|
|
.OPMODEREG(OPMODEREG),
|
|
.PREG(PREG),
|
|
.SEL_MASK(SEL_MASK),
|
|
.SEL_PATTERN(SEL_PATTERN),
|
|
.USE_DPORT(USE_DPORT),
|
|
.USE_MULT(USE_MULT),
|
|
.USE_PATTERN_DETECT(USE_PATTERN_DETECT),
|
|
.USE_SIMD(USE_SIMD),
|
|
.MASK(MASK),
|
|
.PATTERN(PATTERN),
|
|
.IS_ALUMODE_INVERTED(IS_ALUMODE_INVERTED),
|
|
.IS_CARRYIN_INVERTED(IS_CARRYIN_INVERTED),
|
|
.IS_CLK_INVERTED(IS_CLK_INVERTED),
|
|
.IS_INMODE_INVERTED(IS_INMODE_INVERTED),
|
|
.IS_OPMODE_INVERTED(IS_OPMODE_INVERTED)
|
|
) _TECHMAP_REPLACE_ (
|
|
.ACOUT(ACOUT),
|
|
.BCOUT(BCOUT),
|
|
.CARRYCASCOUT(CARRYCASCOUT),
|
|
.CARRYOUT(CARRYOUT),
|
|
.MULTSIGNOUT(MULTSIGNOUT),
|
|
.OVERFLOW(OVERFLOW),
|
|
.P(oP),
|
|
.PATTERNBDETECT(PATTERNBDETECT),
|
|
.PATTERNDETECT(PATTERNDETECT),
|
|
.PCOUT(oPCOUT),
|
|
.UNDERFLOW(UNDERFLOW),
|
|
.A(iA),
|
|
.ACIN(ACIN),
|
|
.ALUMODE(ALUMODE),
|
|
.B(iB),
|
|
.BCIN(BCIN),
|
|
.C(iC),
|
|
.CARRYCASCIN(CARRYCASCIN),
|
|
.CARRYIN(CARRYIN),
|
|
.CARRYINSEL(CARRYINSEL),
|
|
.CEA1(CEA1),
|
|
.CEA2(CEA2),
|
|
.CEAD(CEAD),
|
|
.CEALUMODE(CEALUMODE),
|
|
.CEB1(CEB1),
|
|
.CEB2(CEB2),
|
|
.CEC(CEC),
|
|
.CECARRYIN(CECARRYIN),
|
|
.CECTRL(CECTRL),
|
|
.CED(CED),
|
|
.CEINMODE(CEINMODE),
|
|
.CEM(CEM),
|
|
.CEP(CEP),
|
|
.CLK(CLK),
|
|
.D(iD),
|
|
.INMODE(INMODE),
|
|
.MULTSIGNIN(MULTSIGNIN),
|
|
.OPMODE(OPMODE),
|
|
.PCIN(PCIN),
|
|
.RSTA(RSTA),
|
|
.RSTALLCARRYIN(RSTALLCARRYIN),
|
|
.RSTALUMODE(RSTALUMODE),
|
|
.RSTB(RSTB),
|
|
.RSTC(RSTC),
|
|
.RSTCTRL(RSTCTRL),
|
|
.RSTD(RSTD),
|
|
.RSTINMODE(RSTINMODE),
|
|
.RSTM(RSTM),
|
|
.RSTP(RSTP)
|
|
);
|
|
"""
|
|
|
|
wire [29:0] iA;
|
|
wire [17:0] iB;
|
|
wire [47:0] iC;
|
|
wire [24:0] iD;
|
|
|
|
wire pA, pB, pC, pD, pAD, pM, pP;
|
|
wire [47:0] oP, mP;
|
|
wire [47:0] oPCOUT, mPCOUT;
|
|
|
|
generate
|
|
if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") begin
|
|
// Disconnect the A-input if MREG is enabled, since
|
|
// combinatorial path is broken
|
|
if (AREG == 0 && MREG == 0 && PREG == 0)
|
|
assign iA = A, pA = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
|
|
if (BREG == 0 && MREG == 0 && PREG == 0)
|
|
assign iB = B, pB = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
|
|
if (CREG == 0 && PREG == 0)
|
|
assign iC = C, pC = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
|
|
if (DREG == 0)
|
|
assign iD = D;
|
|
else if (techmap_guard)
|
|
$error("Invalid DSP48E1 configuration: DREG enabled but USE_DPORT == \"FALSE\"");
|
|
assign pD = 1'bx;
|
|
if (ADREG == 1 && techmap_guard)
|
|
$error("Invalid DSP48E1 configuration: ADREG enabled but USE_DPORT == \"FALSE\"");
|
|
assign pAD = 1'bx;
|
|
if (PREG == 0) begin
|
|
if (MREG == 1)
|
|
$__ABC9_REG rM (.Q(pM));
|
|
else
|
|
assign pM = 1'bx;
|
|
assign pP = 1'bx;
|
|
end else begin
|
|
assign pM = 1'bx;
|
|
$__ABC9_REG rP (.Q(pP));
|
|
end
|
|
|
|
if (MREG == 0 && PREG == 0)
|
|
assign mP = oP, mPCOUT = oPCOUT;
|
|
else
|
|
assign mP = 1'bx, mPCOUT = 1'bx;
|
|
$__ABC9_DSP48E1_MULT_P_MUX muxP (
|
|
.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
|
|
);
|
|
$__ABC9_DSP48E1_MULT_PCOUT_MUX muxPCOUT (
|
|
.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
|
|
);
|
|
|
|
`DSP48E1_INST($__ABC9_DSP48E1_MULT )
|
|
end
|
|
else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") begin
|
|
// Disconnect the A-input if MREG is enabled, since
|
|
// combinatorial path is broken
|
|
if (AREG == 0 && ADREG == 0 && MREG == 0 && PREG == 0)
|
|
assign iA = A, pA = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
|
|
if (BREG == 0 && MREG == 0 && PREG == 0)
|
|
assign iB = B, pB = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
|
|
if (CREG == 0 && PREG == 0)
|
|
assign iC = C, pC = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
|
|
if (DREG == 0 && ADREG == 0)
|
|
assign iD = D, pD = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(25)) rD (.I(D), .O(iD), .Q(pD));
|
|
if (PREG == 0) begin
|
|
if (MREG == 1) begin
|
|
assign pAD = 1'bx;
|
|
$__ABC9_REG rM (.Q(pM));
|
|
end else begin
|
|
if (ADREG == 1)
|
|
$__ABC9_REG rAD (.Q(pAD));
|
|
else
|
|
assign pAD = 1'bx;
|
|
assign pM = 1'bx;
|
|
end
|
|
assign pP = 1'bx;
|
|
end else begin
|
|
assign pAD = 1'bx, pM = 1'bx;
|
|
$__ABC9_REG rP (.Q(pP));
|
|
end
|
|
|
|
if (MREG == 0 && PREG == 0)
|
|
assign mP = oP, mPCOUT = oPCOUT;
|
|
else
|
|
assign mP = 1'bx, mPCOUT = 1'bx;
|
|
$__ABC9_DSP48E1_MULT_DPORT_P_MUX muxP (
|
|
.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
|
|
);
|
|
$__ABC9_DSP48E1_MULT_DPORT_PCOUT_MUX muxPCOUT (
|
|
.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
|
|
);
|
|
|
|
`DSP48E1_INST($__ABC9_DSP48E1_MULT_DPORT )
|
|
end
|
|
else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") begin
|
|
// Disconnect the A-input if MREG is enabled, since
|
|
// combinatorial path is broken
|
|
if (AREG == 0 && PREG == 0)
|
|
assign iA = A, pA = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
|
|
if (BREG == 0 && PREG == 0)
|
|
assign iB = B, pB = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
|
|
if (CREG == 0 && PREG == 0)
|
|
assign iC = C, pC = 1'bx;
|
|
else
|
|
$__ABC9_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
|
|
if (DREG == 1 && techmap_guard)
|
|
$error("Invalid DSP48E1 configuration: DREG enabled but USE_DPORT == \"FALSE\"");
|
|
assign pD = 1'bx;
|
|
if (ADREG == 1 && techmap_guard)
|
|
$error("Invalid DSP48E1 configuration: ADREG enabled but USE_DPORT == \"FALSE\"");
|
|
assign pAD = 1'bx;
|
|
if (MREG == 1 && techmap_guard)
|
|
$error("Invalid DSP48E1 configuration: MREG enabled but USE_MULT == \"NONE\"");
|
|
assign pM = 1'bx;
|
|
if (PREG == 1)
|
|
$__ABC9_REG rP (.Q(pP));
|
|
else
|
|
assign pP = 1'bx;
|
|
|
|
if (MREG == 0 && PREG == 0)
|
|
assign mP = oP, mPCOUT = oPCOUT;
|
|
else
|
|
assign mP = 1'bx, mPCOUT = 1'bx;
|
|
$__ABC9_DSP48E1_P_MUX muxP (
|
|
.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
|
|
);
|
|
$__ABC9_DSP48E1_PCOUT_MUX muxPCOUT (
|
|
.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
|
|
);
|
|
|
|
`DSP48E1_INST($__ABC9_DSP48E1 )
|
|
end
|
|
else
|
|
$error("Invalid DSP48E1 configuration");
|
|
endgenerate
|
|
`undef DSP48E1_INST
|
|
endmodule
|