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synth_intel_alm: alternative synthesis for Intel FPGAs

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By operating at a layer of abstraction over the rather clumsy Intel primitives,
we can avoid special hacks like `dffinit -highlow` in favour of simple techmapping.

This also makes the primitives much easier to manipulate, and more descriptive
(no more cyclonev_lcell_comb to mean anything from a LUT2 to a LUT6).
This commit is contained in:
Dan Ravensloft 2019-11-19 10:19:00 +00:00 • committed by Marcelina Kościelnicka
parent 4c52691a58
commit 2e37e62e6b
29 changed files with 1662 additions and 1 deletions
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124
techlibs/intel_alm/common/dff_map.v Normal file
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`default_nettype none
// D flip-flops
module \$_DFF_P_ (input D, C, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(C), .ACLR(1'b1), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFF_P_ with INIT=1");
endmodule
module \$_DFF_N_ (input D, C, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(~C), .ACLR(1'b1), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFF_N_ with INIT=1");
endmodule
// D flip-flops with reset
module \$_DFF_PP0_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(C), .ACLR(~R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFF_PP0_ with INIT=1");
endmodule
module \$_DFF_PN0_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(C), .ACLR(R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFF_PN0_ with INIT=1");
endmodule
module \$_DFF_NP0_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(~C), .ACLR(~R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFF_NP0_ with INIT=1");
endmodule
module \$_DFF_NN0_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(~C), .ACLR(R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFF_NN0_ with INIT=1");
endmodule
// D flip-flops with set
module \$_DFF_PP1_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b1;
if (_TECHMAP_WIREINIT_Q_ !== 1'b0) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
wire Q_tmp;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(~D), .CLK(C), .ACLR(~R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q_tmp));
assign Q = ~Q_tmp;
end else $error("Unsupported flop: $_DFF_PP1_ with INIT=0");
endmodule
module \$_DFF_PN1_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b1;
if (_TECHMAP_WIREINIT_Q_ !== 1'b0) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
wire Q_tmp;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(~D), .CLK(C), .ACLR(R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q_tmp));
end else $error("Unsupported flop: $_DFF_PN1_ with INIT=0");
endmodule
module \$_DFF_NP1_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b1;
if (_TECHMAP_WIREINIT_Q_ !== 1'b0) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
wire Q_tmp;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(~D), .CLK(~C), .ACLR(~R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q_tmp));
assign Q = ~Q_tmp;
end else $error("Unsupported flop: $_DFF_NP1_ with INIT=0");
endmodule
module \$_DFF_NN1_ (input D, C, R, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b1;
if (_TECHMAP_WIREINIT_Q_ !== 1'b0) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
wire Q_tmp;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(~D), .CLK(~C), .ACLR(R), .ENA(1'b1), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q_tmp));
assign Q = ~Q_tmp;
end else $error("Unsupported flop: $_DFF_NN1_ with INIT=0");
endmodule
// D flip-flops with clock enable
module \$_DFFE_PP_ (input D, C, E, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(C), .ACLR(1'b1), .ENA(E), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFFE_PP_ with INIT=1");
endmodule
module \$_DFFE_PN_ (input D, C, E, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(C), .ACLR(1'b1), .ENA(~E), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFFE_PN_ with INIT=1");
endmodule
module \$_DFFE_NP_ (input D, C, E, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(~C), .ACLR(1'b1), .ENA(E), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFFE_NP_ with INIT=1");
endmodule
module \$_DFFE_NN_ (input D, C, E, output Q);
parameter _TECHMAP_WIREINIT_Q_ = 1'b0;
if (_TECHMAP_WIREINIT_Q_ !== 1'b1) begin
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
MISTRAL_FF _TECHMAP_REPLACE_(.DATAIN(D), .CLK(~C), .ACLR(1'b1), .ENA(~E), .SCLR(1'b0), .SLOAD(1'b0), .SDATA(1'b0), .Q(Q));
end else $error("Unsupported flop: $_DFFE_NN_ with INIT=1");
endmodule