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Fix broken MUXFx box, use MUXF7x2 box instead

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This commit is contained in:
Eddie Hung 2019-07-01 13:36:27 -07:00
parent 603fe9cda9
commit a9a140aa6c
3 changed files with 37 additions and 36 deletions
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9
techlibs/xilinx/abc_xc7.box
View file

@ -14,10 +14,11 @@ F7MUX 1 1 3 1
MUXF8 2 1 3 1
104 94 273
# Inputs: I0 I1 I2 I3 S0 S1
# Outputs: O
$__MUXF78 3 1 6 1
190 193 217 223 296 273
# Inputs: I0 I1 I2 I3 S
# Outputs: O0 O1
$__MUXF7x2 3 1 5 2
190 193 - - 276
- - 217 223 296
# CARRY4 + CARRY4_[ABCD]X
# Inputs: CYINIT DI0 DI1 DI2 DI3 S0 S1 S2 S3 CI

58
techlibs/xilinx/cells_map.v
View file

@ -95,7 +95,9 @@ module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, o
if (&_TECHMAP_CONSTMSK_L_)
assign Q = T4;
else
\$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(1'bx), .S0(L[5]), .S1(L[6]), .O(Q));
wire TA, TB;
\$__XILINX_MUXF7x2 fpga_hard_mux7 (.I0(T0), .I1(T2), .I2(T4), .I3(1'bx), .S(L[5]), .O0(TA), .O1(TB));
MUXF8 fpga_hard_mux8 (.I0(TA), .I1(TB), .S(L[6]), .O(Q));
end else
if (DEPTH > 97 && DEPTH < 128) begin
wire T0, T1, T2, T3, T4, T5, T6, T7, T8;
@ -106,7 +108,9 @@ module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, o
if (&_TECHMAP_CONSTMSK_L_)
assign Q = T6;
else
\$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(T6), .S0(L[5]), .S1(L[6]), .O(Q));
wire TA, TB;
\$__XILINX_MUXF7x2 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(T6), .S(L[5]), .O0(TA), .O1(TB));
MUXF8 fpga_hard_mux8 (.I0(TA), .I1(TB), .S(L[6]), .O(Q));
end
else if (DEPTH == 128) begin
wire T0, T1, T2, T3, T4, T5, T6;
@ -116,8 +120,11 @@ module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, o
SRLC32E #(.INIT(INIT_R[128-1:96]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_3 (.A(L[4:0]), .CE(CE), .CLK(C), .D(T5), .Q(T6), .Q31(SO));
if (&_TECHMAP_CONSTMSK_L_)
assign Q = T6;
else
\$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(T6), .S0(L[5]), .S1(L[6]), .O(Q));
else begin
wire TA, TB;
\$__XILINX_MUXF7x2 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(T6), .S(L[5]), .O0(T7), .O1(T8));
MUXF8 fpga_hard_mux8 (.I0(TA), .I1(TB), .S(L[6]), .O(Q));
end
end
else if (DEPTH <= 129 && ~&_TECHMAP_CONSTMSK_L_) begin
// Handle cases where fixed-length depth is
@ -216,7 +223,9 @@ module \$__XILINX_SHIFTX (A, B, Y);
\$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_widthN), .B_WIDTH($clog2(a_widthN)), .Y_WIDTH(Y_WIDTH)) fpga_mux_last (.A(A[A_WIDTH-1-:a_widthN]), .B(B[$clog2(a_widthN)-1:0]), .Y(T[i]));
else
assign T[i] = A[A_WIDTH-1];
\$__XILINX_MUXF78 fpga_hard_mux (.I0(T[0]), .I1(T[1]), .I2(T[2]), .I3(T[3]), .S0(B[2]), .S1(B[3]), .O(Y));
wire TA, TB;
\$__XILINX_MUXF7x2 fpga_hard_mux (.I0(T[0]), .I1(T[2]), .I2(T[4]), .I3(T[6]), .S(B[2]), .O0(TA), .O1(TB));
MUXF8 fpga_hard_mux8 (.I0(TA), .I1(TB), .S(B[3]), .O(Q));
end
else begin
localparam a_width0 = 2 ** 4;
@ -265,36 +274,27 @@ endmodule
`endif
`ifndef _ABC
module \$__XILINX_MUXF78 (O, I0, I1, I2, I3, S0, S1);
output O;
input I0, I1, I2, I3, S0, S1;
wire T0, T1;
module \$__XILINX_MUXF7x2 (O0, O1, I0, I1, I2, I3, S);
output O0, O1;
input I0, I1, I2, I3, S;
parameter _TECHMAP_BITS_CONNMAP_ = 0;
parameter [_TECHMAP_BITS_CONNMAP_-1:0] _TECHMAP_CONNMAP_I0_ = 0;
parameter [_TECHMAP_BITS_CONNMAP_-1:0] _TECHMAP_CONNMAP_I1_ = 0;
parameter [_TECHMAP_BITS_CONNMAP_-1:0] _TECHMAP_CONNMAP_I2_ = 0;
parameter [_TECHMAP_BITS_CONNMAP_-1:0] _TECHMAP_CONNMAP_I3_ = 0;
parameter _TECHMAP_CONSTMSK_S0_ = 0;
parameter _TECHMAP_CONSTVAL_S0_ = 0;
parameter _TECHMAP_CONSTMSK_S1_ = 0;
parameter _TECHMAP_CONSTVAL_S1_ = 0;
if (_TECHMAP_CONSTMSK_S0_ && _TECHMAP_CONSTVAL_S0_ === 1'b1)
assign T0 = I1;
else if (_TECHMAP_CONSTMSK_S0_ || _TECHMAP_CONNMAP_I0_ === _TECHMAP_CONNMAP_I1_)
assign T0 = I0;
parameter _TECHMAP_CONSTMSK_S_ = 0;
parameter _TECHMAP_CONSTVAL_S_ = 0;
if (_TECHMAP_CONSTMSK_S_ && _TECHMAP_CONSTVAL_S_ === 1'b1)
assign O0 = I1;
else if (_TECHMAP_CONSTMSK_S_ || _TECHMAP_CONNMAP_I0_ === _TECHMAP_CONNMAP_I1_)
assign O0 = I0;
else
MUXF7 mux7a (.I0(I0), .I1(I1), .S(S0), .O(T0));
if (_TECHMAP_CONSTMSK_S0_ && _TECHMAP_CONSTVAL_S0_ === 1'b1)
assign T1 = I3;
else if (_TECHMAP_CONSTMSK_S0_ || _TECHMAP_CONNMAP_I2_ === _TECHMAP_CONNMAP_I3_)
assign T1 = I2;
MUXF7 mux7a (.I0(I0), .I1(I1), .S(S), .O(O0));
if (_TECHMAP_CONSTMSK_S_ && _TECHMAP_CONSTVAL_S_ === 1'b1)
assign O1 = I3;
else if (_TECHMAP_CONSTMSK_S_ || _TECHMAP_CONNMAP_I2_ === _TECHMAP_CONNMAP_I3_)
assign O1 = I2;
else
MUXF7 mux7b (.I0(I2), .I1(I3), .S(S0), .O(T1));
if (_TECHMAP_CONSTMSK_S1_ && _TECHMAP_CONSTVAL_S1_ === 1'b1)
assign O = T1;
else if (_TECHMAP_CONSTMSK_S1_ || (_TECHMAP_CONNMAP_I0_ === _TECHMAP_CONNMAP_I1_ && _TECHMAP_CONNMAP_I1_ === _TECHMAP_CONNMAP_I2_ && _TECHMAP_CONNMAP_I2_ === _TECHMAP_CONNMAP_I3_))
assign O = T0;
else
MUXF8 mux8 (.I0(T0), .I1(T1), .S(S1), .O(O));
MUXF7 mux7b (.I0(I2), .I1(I3), .S(S), .O(O1));
endmodule
`endif

6
techlibs/xilinx/cells_sim.v
View file

@ -171,9 +171,9 @@ endmodule
`ifdef _ABC
(* abc_box_id = 3, lib_whitebox *)
module \$__XILINX_MUXF78 (output O, input I0, I1, I2, I3, S0, S1);
assign O = S1 ? (S0 ? I3 : I2)
: (S0 ? I1 : I0);
module \$__XILINX_MUXF7x2 (output O0, O1, input I0, I1, I2, I3, S);
assign O0 = S ? I1 : I0;
assign O1 = S ? I3 : I2;
endmodule
`endif