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authorRuben Undheim <ruben.undheim@gmail.com>2019-10-18 19:56:51 +0000
committerRuben Undheim <ruben.undheim@gmail.com>2019-10-18 19:56:51 +0000
commit1f6bb85359149a016811e7e7fef980c3d45211e7 (patch)
tree749672f9a104cbfb25bb02acad6cb731724b9d56 /techlibs/xilinx
parentff5734b20220e6fb4a3913cf5279ed94bb5156ea (diff)
New upstream version 0.9
Diffstat (limited to 'techlibs/xilinx')
-rw-r--r--techlibs/xilinx/cells_map.v138
-rw-r--r--techlibs/xilinx/cells_sim.v113
-rw-r--r--techlibs/xilinx/cells_xtra.sh14
-rw-r--r--techlibs/xilinx/cells_xtra.v72
-rw-r--r--techlibs/xilinx/drams.txt24
-rw-r--r--techlibs/xilinx/drams_map.v34
-rw-r--r--techlibs/xilinx/synth_xilinx.cc291
7 files changed, 463 insertions, 223 deletions
diff --git a/techlibs/xilinx/cells_map.v b/techlibs/xilinx/cells_map.v
index d5801c0f..40789ddb 100644
--- a/techlibs/xilinx/cells_map.v
+++ b/techlibs/xilinx/cells_map.v
@@ -17,4 +17,140 @@
*
*/
-// Empty for now
+// Convert negative-polarity reset to positive-polarity
+(* techmap_celltype = "$_DFF_NN0_" *)
+module _90_dff_nn0_to_np0 (input D, C, R, output Q); \$_DFF_NP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
+(* techmap_celltype = "$_DFF_PN0_" *)
+module _90_dff_pn0_to_pp0 (input D, C, R, output Q); \$_DFF_PP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
+(* techmap_celltype = "$_DFF_NN1_" *)
+module _90_dff_nn1_to_np1 (input D, C, R, output Q); \$_DFF_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
+(* techmap_celltype = "$_DFF_PN1_" *)
+module _90_dff_pn1_to_pp1 (input D, C, R, output Q); \$_DFF_PP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
+
+module \$__SHREG_ (input C, input D, input E, output Q);
+ parameter DEPTH = 0;
+ parameter [DEPTH-1:0] INIT = 0;
+ parameter CLKPOL = 1;
+ parameter ENPOL = 2;
+
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH), .INIT(INIT), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) _TECHMAP_REPLACE_ (.C(C), .D(D), .L(DEPTH-1), .E(E), .Q(Q));
+endmodule
+
+module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, output SO);
+ parameter DEPTH = 0;
+ parameter [DEPTH-1:0] INIT = 0;
+ parameter CLKPOL = 1;
+ parameter ENPOL = 2;
+
+ // shregmap's INIT parameter shifts out LSB first;
+ // however Xilinx expects MSB first
+ function [DEPTH-1:0] brev;
+ input [DEPTH-1:0] din;
+ integer i;
+ begin
+ for (i = 0; i < DEPTH; i=i+1)
+ brev[i] = din[DEPTH-1-i];
+ end
+ endfunction
+ localparam [DEPTH-1:0] INIT_R = brev(INIT);
+
+ parameter _TECHMAP_CONSTMSK_L_ = 0;
+ parameter _TECHMAP_CONSTVAL_L_ = 0;
+
+ wire CE;
+ generate
+ if (ENPOL == 0)
+ assign CE = ~E;
+ else if (ENPOL == 1)
+ assign CE = E;
+ else
+ assign CE = 1'b1;
+ if (DEPTH == 1) begin
+ if (CLKPOL)
+ FDRE #(.INIT(INIT_R)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(CE), .R(1'b0));
+ else
+ FDRE_1 #(.INIT(INIT_R)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(CE), .R(1'b0));
+ end else
+ if (DEPTH <= 16) begin
+ SRL16E #(.INIT(INIT_R), .IS_CLK_INVERTED(~CLKPOL[0])) _TECHMAP_REPLACE_ (.A0(L[0]), .A1(L[1]), .A2(L[2]), .A3(L[3]), .CE(CE), .CLK(C), .D(D), .Q(Q));
+ end else
+ if (DEPTH > 17 && DEPTH <= 32) begin
+ SRLC32E #(.INIT(INIT_R), .IS_CLK_INVERTED(~CLKPOL[0])) _TECHMAP_REPLACE_ (.A(L[4:0]), .CE(CE), .CLK(C), .D(D), .Q(Q));
+ end else
+ if (DEPTH > 33 && DEPTH <= 64) begin
+ wire T0, T1, T2;
+ SRLC32E #(.INIT(INIT_R[32-1:0]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_0 (.A(L[4:0]), .CE(CE), .CLK(C), .D(D), .Q(T0), .Q31(T1));
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH-32), .INIT(INIT[DEPTH-32-1:0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_1 (.C(C), .D(T1), .L(L), .E(E), .Q(T2));
+ if (&_TECHMAP_CONSTMSK_L_)
+ assign Q = T2;
+ else
+ MUXF7 fpga_mux_0 (.O(Q), .I0(T0), .I1(T2), .S(L[5]));
+ end else
+ if (DEPTH > 65 && DEPTH <= 96) begin
+ wire T0, T1, T2, T3, T4, T5, T6;
+ SRLC32E #(.INIT(INIT_R[32-1:0]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_0 (.A(L[4:0]), .CE(CE), .CLK(C), .D(D), .Q(T0), .Q31(T1));
+ SRLC32E #(.INIT(INIT_R[64-1:32]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_1 (.A(L[4:0]), .CE(CE), .CLK(C), .D(T1), .Q(T2), .Q31(T3));
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH-64), .INIT(INIT[DEPTH-64-1:0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_2 (.C(C), .D(T3), .L(L[4:0]), .E(E), .Q(T4));
+ if (&_TECHMAP_CONSTMSK_L_)
+ assign Q = T4;
+ else begin
+ MUXF7 fpga_mux_0 (.O(T5), .I0(T0), .I1(T2), .S(L[5]));
+ MUXF7 fpga_mux_1 (.O(T6), .I0(T4), .I1(1'b0 /* unused */), .S(L[5]));
+ MUXF8 fpga_mux_2 (.O(Q), .I0(T5), .I1(T6), .S(L[6]));
+ end
+ end else
+ if (DEPTH > 97 && DEPTH < 128) begin
+ wire T0, T1, T2, T3, T4, T5, T6, T7, T8;
+ SRLC32E #(.INIT(INIT_R[32-1:0]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_0 (.A(L[4:0]), .CE(CE), .CLK(C), .D(D), .Q(T0), .Q31(T1));
+ SRLC32E #(.INIT(INIT_R[64-1:32]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_1 (.A(L[4:0]), .CE(CE), .CLK(C), .D(T1), .Q(T2), .Q31(T3));
+ SRLC32E #(.INIT(INIT_R[96-1:64]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_2 (.A(L[4:0]), .CE(CE), .CLK(C), .D(T3), .Q(T4), .Q31(T5));
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH-96), .INIT(INIT[DEPTH-96-1:0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_3 (.C(C), .D(T5), .L(L[4:0]), .E(E), .Q(T6));
+ if (&_TECHMAP_CONSTMSK_L_)
+ assign Q = T6;
+ else begin
+ MUXF7 fpga_mux_0 (.O(T7), .I0(T0), .I1(T2), .S(L[5]));
+ MUXF7 fpga_mux_1 (.O(T8), .I0(T4), .I1(T6), .S(L[5]));
+ MUXF8 fpga_mux_2 (.O(Q), .I0(T7), .I1(T8), .S(L[6]));
+ end
+ end
+ else if (DEPTH == 128) begin
+ wire T0, T1, T2, T3, T4, T5, T6;
+ SRLC32E #(.INIT(INIT_R[32-1:0]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_0 (.A(L[4:0]), .CE(CE), .CLK(C), .D(D), .Q(T0), .Q31(T1));
+ SRLC32E #(.INIT(INIT_R[64-1:32]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_1 (.A(L[4:0]), .CE(CE), .CLK(C), .D(T1), .Q(T2), .Q31(T3));
+ SRLC32E #(.INIT(INIT_R[96-1:64]), .IS_CLK_INVERTED(~CLKPOL[0])) fpga_srl_2 (.A(L[4:0]), .CE(CE), .CLK(C), .D(T3), .Q(T4), .Q31(T5));
+ 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 begin
+ wire T7, T8;
+ MUXF7 fpga_mux_0 (.O(T7), .I0(T0), .I1(T2), .S(L[5]));
+ MUXF7 fpga_mux_1 (.O(T8), .I0(T4), .I1(T6), .S(L[5]));
+ MUXF8 fpga_mux_2 (.O(Q), .I0(T7), .I1(T8), .S(L[6]));
+ end
+ end
+ else if (DEPTH <= 129 && ~&_TECHMAP_CONSTMSK_L_) begin
+ // Handle cases where fixed-length depth is
+ // just 1 over a convenient value
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH+1), .INIT({INIT,1'b0}), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) _TECHMAP_REPLACE_ (.C(C), .D(D), .L(L), .E(E), .Q(Q));
+ end
+ else begin
+ localparam lower_clog2 = $clog2((DEPTH+1)/2);
+ localparam lower_depth = 2 ** lower_clog2;
+ wire T0, T1, T2, T3;
+ if (&_TECHMAP_CONSTMSK_L_) begin
+ \$__XILINX_SHREG_ #(.DEPTH(lower_depth), .INIT(INIT[DEPTH-1:DEPTH-lower_depth]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_0 (.C(C), .D(D), .L(lower_depth-1), .E(E), .Q(T0));
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH-lower_depth), .INIT(INIT[DEPTH-lower_depth-1:0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_1 (.C(C), .D(T0), .L(DEPTH-lower_depth-1), .E(E), .Q(Q), .SO(T3));
+ end
+ else begin
+ \$__XILINX_SHREG_ #(.DEPTH(lower_depth), .INIT(INIT[DEPTH-1:DEPTH-lower_depth]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_0 (.C(C), .D(D), .L(L[lower_clog2-1:0]), .E(E), .Q(T0), .SO(T1));
+ \$__XILINX_SHREG_ #(.DEPTH(DEPTH-lower_depth), .INIT(INIT[DEPTH-lower_depth-1:0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_1 (.C(C), .D(T1), .L(L[lower_clog2-1:0]), .E(E), .Q(T2), .SO(T3));
+ assign Q = L[lower_clog2] ? T2 : T0;
+ end
+ if (DEPTH == 2 * lower_depth)
+ assign SO = T3;
+ end
+ endgenerate
+endmodule
+
+`ifndef SRL_ONLY
+`endif
diff --git a/techlibs/xilinx/cells_sim.v b/techlibs/xilinx/cells_sim.v
index ff5ff072..f4598dcf 100644
--- a/techlibs/xilinx/cells_sim.v
+++ b/techlibs/xilinx/cells_sim.v
@@ -30,10 +30,15 @@ module GND(output G);
endmodule
module IBUF(output O, input I);
+ parameter IOSTANDARD = "default";
+ parameter IBUF_LOW_PWR = 0;
assign O = I;
endmodule
module OBUF(output O, input I);
+ parameter IOSTANDARD = "default";
+ parameter DRIVE = 12;
+ parameter SLEW = "SLOW";
assign O = I;
endmodule
@@ -41,6 +46,42 @@ module BUFG(output O, input I);
assign O = I;
endmodule
+module BUFGCTRL(
+ output O,
+ input I0, input I1,
+ input S0, input S1,
+ input CE0, input CE1,
+ input IGNORE0, input IGNORE1);
+
+parameter [0:0] INIT_OUT = 1'b0;
+parameter PRESELECT_I0 = "FALSE";
+parameter PRESELECT_I1 = "FALSE";
+parameter [0:0] IS_CE0_INVERTED = 1'b0;
+parameter [0:0] IS_CE1_INVERTED = 1'b0;
+parameter [0:0] IS_S0_INVERTED = 1'b0;
+parameter [0:0] IS_S1_INVERTED = 1'b0;
+parameter [0:0] IS_IGNORE0_INVERTED = 1'b0;
+parameter [0:0] IS_IGNORE1_INVERTED = 1'b0;
+
+wire I0_internal = ((CE0 ^ IS_CE0_INVERTED) ? I0 : INIT_OUT);
+wire I1_internal = ((CE1 ^ IS_CE1_INVERTED) ? I1 : INIT_OUT);
+wire S0_true = (S0 ^ IS_S0_INVERTED);
+wire S1_true = (S1 ^ IS_S1_INVERTED);
+
+assign O = S0_true ? I0_internal : (S1_true ? I1_internal : INIT_OUT);
+
+endmodule
+
+module BUFHCE(output O, input I, input CE);
+
+parameter [0:0] INIT_OUT = 1'b0;
+parameter CE_TYPE = "SYNC";
+parameter [0:0] IS_CE_INVERTED = 1'b0;
+
+assign O = ((CE ^ IS_CE_INVERTED) ? I : INIT_OUT);
+
+endmodule
+
// module OBUFT(output O, input I, T);
// assign O = T ? 1'bz : I;
// endmodule
@@ -98,6 +139,22 @@ module LUT6(output O, input I0, I1, I2, I3, I4, I5);
assign O = I0 ? s1[1] : s1[0];
endmodule
+module LUT6_2(output O6, output O5, input I0, I1, I2, I3, I4, I5);
+ parameter [63:0] INIT = 0;
+ wire [31: 0] s5 = I5 ? INIT[63:32] : INIT[31: 0];
+ wire [15: 0] s4 = I4 ? s5[31:16] : s5[15: 0];
+ wire [ 7: 0] s3 = I3 ? s4[15: 8] : s4[ 7: 0];
+ wire [ 3: 0] s2 = I2 ? s3[ 7: 4] : s3[ 3: 0];
+ wire [ 1: 0] s1 = I1 ? s2[ 3: 2] : s2[ 1: 0];
+ assign O6 = I0 ? s1[1] : s1[0];
+
+ wire [15: 0] s5_4 = I4 ? INIT[31:16] : INIT[15: 0];
+ wire [ 7: 0] s5_3 = I3 ? s5_4[15: 8] : s5_4[ 7: 0];
+ wire [ 3: 0] s5_2 = I2 ? s5_3[ 7: 4] : s5_3[ 3: 0];
+ wire [ 1: 0] s5_1 = I1 ? s5_2[ 3: 2] : s5_2[ 1: 0];
+ assign O5 = I0 ? s5_1[1] : s5_1[0];
+endmodule
+
module MUXCY(output O, input CI, DI, S);
assign O = S ? CI : DI;
endmodule
@@ -221,6 +278,23 @@ module FDPE_1 (output reg Q, input C, CE, D, PRE);
always @(negedge C, posedge PRE) if (PRE) Q <= 1'b1; else if (CE) Q <= D;
endmodule
+module RAM32X1D (
+ output DPO, SPO,
+ input D, WCLK, WE,
+ input A0, A1, A2, A3, A4,
+ input DPRA0, DPRA1, DPRA2, DPRA3, DPRA4
+);
+ parameter INIT = 32'h0;
+ parameter IS_WCLK_INVERTED = 1'b0;
+ wire [4:0] a = {A4, A3, A2, A1, A0};
+ wire [4:0] dpra = {DPRA4, DPRA3, DPRA2, DPRA1, DPRA0};
+ reg [31:0] mem = INIT;
+ assign SPO = mem[a];
+ assign DPO = mem[dpra];
+ wire clk = WCLK ^ IS_WCLK_INVERTED;
+ always @(posedge clk) if (WE) mem[a] <= D;
+endmodule
+
module RAM64X1D (
output DPO, SPO,
input D, WCLK, WE,
@@ -251,3 +325,42 @@ module RAM128X1D (
wire clk = WCLK ^ IS_WCLK_INVERTED;
always @(posedge clk) if (WE) mem[A] <= D;
endmodule
+
+module SRL16E (
+ output Q,
+ input A0, A1, A2, A3, CE, CLK, D
+);
+ parameter [15:0] INIT = 16'h0000;
+ parameter [0:0] IS_CLK_INVERTED = 1'b0;
+
+ reg [15:0] r = INIT;
+ assign Q = r[{A3,A2,A1,A0}];
+ generate
+ if (IS_CLK_INVERTED) begin
+ always @(negedge CLK) if (CE) r <= { r[14:0], D };
+ end
+ else
+ always @(posedge CLK) if (CE) r <= { r[14:0], D };
+ endgenerate
+endmodule
+
+module SRLC32E (
+ output Q,
+ output Q31,
+ input [4:0] A,
+ input CE, CLK, D
+);
+ parameter [31:0] INIT = 32'h00000000;
+ parameter [0:0] IS_CLK_INVERTED = 1'b0;
+
+ reg [31:0] r = INIT;
+ assign Q31 = r[31];
+ assign Q = r[A];
+ generate
+ if (IS_CLK_INVERTED) begin
+ always @(negedge CLK) if (CE) r <= { r[30:0], D };
+ end
+ else
+ always @(posedge CLK) if (CE) r <= { r[30:0], D };
+ endgenerate
+endmodule
diff --git a/techlibs/xilinx/cells_xtra.sh b/techlibs/xilinx/cells_xtra.sh
index 56520ea1..83863bf0 100644
--- a/techlibs/xilinx/cells_xtra.sh
+++ b/techlibs/xilinx/cells_xtra.sh
@@ -28,12 +28,12 @@ function xtract_cell_decl()
# xtract_cell_decl BUFG
xtract_cell_decl BUFGCE
xtract_cell_decl BUFGCE_1
- xtract_cell_decl BUFGCTRL
+ #xtract_cell_decl BUFGCTRL
xtract_cell_decl BUFGMUX
xtract_cell_decl BUFGMUX_1
xtract_cell_decl BUFGMUX_CTRL
xtract_cell_decl BUFH
- xtract_cell_decl BUFHCE
+ #xtract_cell_decl BUFHCE
xtract_cell_decl BUFIO
xtract_cell_decl BUFMR
xtract_cell_decl BUFMRCE
@@ -92,7 +92,7 @@ function xtract_cell_decl()
# xtract_cell_decl LUT4
# xtract_cell_decl LUT5
# xtract_cell_decl LUT6
- xtract_cell_decl LUT6_2
+ #xtract_cell_decl LUT6_2
xtract_cell_decl MMCME2_ADV
xtract_cell_decl MMCME2_BASE
# xtract_cell_decl MUXF7
@@ -116,11 +116,11 @@ function xtract_cell_decl()
xtract_cell_decl PS7 "(* keep *)"
xtract_cell_decl PULLDOWN
xtract_cell_decl PULLUP
- xtract_cell_decl RAM128X1D
+ #xtract_cell_decl RAM128X1D
xtract_cell_decl RAM128X1S
xtract_cell_decl RAM256X1S
xtract_cell_decl RAM32M
- xtract_cell_decl RAM32X1D
+ #xtract_cell_decl RAM32X1D
xtract_cell_decl RAM32X1S
xtract_cell_decl RAM32X1S_1
xtract_cell_decl RAM32X2S
@@ -135,8 +135,8 @@ function xtract_cell_decl()
xtract_cell_decl ROM256X1
xtract_cell_decl ROM32X1
xtract_cell_decl ROM64X1
- xtract_cell_decl SRL16E
- xtract_cell_decl SRLC32E
+ #xtract_cell_decl SRL16E
+ #xtract_cell_decl SRLC32E
xtract_cell_decl STARTUPE2 "(* keep *)"
xtract_cell_decl USR_ACCESSE2
xtract_cell_decl XADC
diff --git a/techlibs/xilinx/cells_xtra.v b/techlibs/xilinx/cells_xtra.v
index 497518d3..6220da70 100644
--- a/techlibs/xilinx/cells_xtra.v
+++ b/techlibs/xilinx/cells_xtra.v
@@ -30,29 +30,6 @@ module BUFGCE_1 (...);
input CE, I;
endmodule
-module BUFGCTRL (...);
- output O;
- input CE0;
- input CE1;
- input I0;
- input I1;
- input IGNORE0;
- input IGNORE1;
- input S0;
- input S1;
- parameter integer INIT_OUT = 0;
- parameter PRESELECT_I0 = "FALSE";
- parameter PRESELECT_I1 = "FALSE";
- parameter [0:0] IS_CE0_INVERTED = 1'b0;
- parameter [0:0] IS_CE1_INVERTED = 1'b0;
- parameter [0:0] IS_I0_INVERTED = 1'b0;
- parameter [0:0] IS_I1_INVERTED = 1'b0;
- parameter [0:0] IS_IGNORE0_INVERTED = 1'b0;
- parameter [0:0] IS_IGNORE1_INVERTED = 1'b0;
- parameter [0:0] IS_S0_INVERTED = 1'b0;
- parameter [0:0] IS_S1_INVERTED = 1'b0;
-endmodule
-
module BUFGMUX (...);
parameter CLK_SEL_TYPE = "SYNC";
output O;
@@ -77,15 +54,6 @@ module BUFH (...);
input I;
endmodule
-module BUFHCE (...);
- parameter CE_TYPE = "SYNC";
- parameter integer INIT_OUT = 0;
- parameter [0:0] IS_CE_INVERTED = 1'b0;
- output O;
- input CE;
- input I;
-endmodule
-
module BUFIO (...);
output O;
input I;
@@ -2420,12 +2388,6 @@ module LDPE (...);
input D, G, GE, PRE;
endmodule
-module LUT6_2 (...);
- parameter [63:0] INIT = 64'h0000000000000000;
- input I0, I1, I2, I3, I4, I5;
- output O5, O6;
-endmodule
-
module MMCME2_ADV (...);
parameter BANDWIDTH = "OPTIMIZED";
parameter real CLKFBOUT_MULT_F = 5.000;
@@ -3693,17 +3655,6 @@ module PULLUP (...);
output O;
endmodule
-module RAM128X1D (...);
- parameter [127:0] INIT = 128'h00000000000000000000000000000000;
- parameter [0:0] IS_WCLK_INVERTED = 1'b0;
- output DPO, SPO;
- input [6:0] A;
- input [6:0] DPRA;
- input D;
- input WCLK;
- input WE;
-endmodule
-
module RAM128X1S (...);
parameter [127:0] INIT = 128'h00000000000000000000000000000000;
parameter [0:0] IS_WCLK_INVERTED = 1'b0;
@@ -3743,13 +3694,6 @@ module RAM32M (...);
input WE;
endmodule
-module RAM32X1D (...);
- parameter [31:0] INIT = 32'h00000000;
- parameter [0:0] IS_WCLK_INVERTED = 1'b0;
- output DPO, SPO;
- input A0, A1, A2, A3, A4, D, DPRA0, DPRA1, DPRA2, DPRA3, DPRA4, WCLK, WE;
-endmodule
-
module RAM32X1S (...);
parameter [31:0] INIT = 32'h00000000;
parameter [0:0] IS_WCLK_INVERTED = 1'b0;
@@ -3847,22 +3791,6 @@ module ROM64X1 (...);
input A0, A1, A2, A3, A4, A5;
endmodule
-module SRL16E (...);
- parameter [15:0] INIT = 16'h0000;
- parameter [0:0] IS_CLK_INVERTED = 1'b0;
- output Q;
- input A0, A1, A2, A3, CE, CLK, D;
-endmodule
-
-module SRLC32E (...);
- parameter [31:0] INIT = 32'h00000000;
- parameter [0:0] IS_CLK_INVERTED = 1'b0;
- output Q;
- output Q31;
- input [4:0] A;
- input CE, CLK, D;
-endmodule
-
(* keep *)
module STARTUPE2 (...);
parameter PROG_USR = "FALSE";
diff --git a/techlibs/xilinx/drams.txt b/techlibs/xilinx/drams.txt
index e6635d0e..2613c206 100644
--- a/techlibs/xilinx/drams.txt
+++ b/techlibs/xilinx/drams.txt
@@ -1,4 +1,17 @@
+bram $__XILINX_RAM32X1D
+ init 1
+ abits 5
+ dbits 1
+ groups 2
+ ports 1 1
+ wrmode 0 1
+ enable 0 1
+ transp 0 0
+ clocks 0 1
+ clkpol 0 2
+endbram
+
bram $__XILINX_RAM64X1D
init 1
abits 6
@@ -25,12 +38,23 @@ bram $__XILINX_RAM128X1D
clkpol 0 2
endbram
+match $__XILINX_RAM32X1D
+ min bits 3
+ min wports 1
+ make_outreg
+ or_next_if_better
+endmatch
+
match $__XILINX_RAM64X1D
+ min bits 5
+ min wports 1
make_outreg
or_next_if_better
endmatch
match $__XILINX_RAM128X1D
+ min bits 9
+ min wports 1
make_outreg
endmatch
diff --git a/techlibs/xilinx/drams_map.v b/techlibs/xilinx/drams_map.v
index 47476b59..77041ca8 100644
--- a/techlibs/xilinx/drams_map.v
+++ b/techlibs/xilinx/drams_map.v
@@ -1,4 +1,38 @@
+module \$__XILINX_RAM32X1D (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN);
+ parameter [31:0] INIT = 32'bx;
+ parameter CLKPOL2 = 1;
+ input CLK1;
+
+ input [4:0] A1ADDR;
+ output A1DATA;
+
+ input [4:0] B1ADDR;
+ input B1DATA;
+ input B1EN;
+
+ RAM32X1D #(
+ .INIT(INIT),
+ .IS_WCLK_INVERTED(!CLKPOL2)
+ ) _TECHMAP_REPLACE_ (
+ .DPRA0(A1ADDR[0]),
+ .DPRA1(A1ADDR[1]),
+ .DPRA2(A1ADDR[2]),
+ .DPRA3(A1ADDR[3]),
+ .DPRA4(A1ADDR[4]),
+ .DPO(A1DATA),
+
+ .A0(B1ADDR[0]),
+ .A1(B1ADDR[1]),
+ .A2(B1ADDR[2]),
+ .A3(B1ADDR[3]),
+ .A4(B1ADDR[4]),
+ .D(B1DATA),
+ .WCLK(CLK1),
+ .WE(B1EN)
+ );
+endmodule
+
module \$__XILINX_RAM64X1D (CLK1, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN);
parameter [63:0] INIT = 64'bx;
parameter CLKPOL2 = 1;
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc
index 805ae8e6..7dc9915e 100644
--- a/techlibs/xilinx/synth_xilinx.cc
+++ b/techlibs/xilinx/synth_xilinx.cc
@@ -25,18 +25,9 @@
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
-bool check_label(bool &active, std::string run_from, std::string run_to, std::string label)
+struct SynthXilinxPass : public ScriptPass
{
- if (label == run_from)
- active = true;
- if (label == run_to)
- active = false;
- return active;
-}
-
-struct SynthXilinxPass : public Pass
-{
- SynthXilinxPass() : Pass("synth_xilinx", "synthesis for Xilinx FPGAs") { }
+ SynthXilinxPass() : ScriptPass("synth_xilinx", "synthesis for Xilinx FPGAs") { }
void help() YS_OVERRIDE
{
@@ -51,6 +42,11 @@ struct SynthXilinxPass : public Pass
log(" -top <module>\n");
log(" use the specified module as top module\n");
log("\n");
+ log(" -family {xcup|xcu|xc7|xc6s}\n");
+ log(" run synthesis for the specified Xilinx architecture\n");
+ log(" generate the synthesis netlist for the specified family.\n");
+ log(" default: xc7\n");
+ log("\n");
log(" -edif <file>\n");
log(" write the design to the specified edif file. writing of an output file\n");
log(" is omitted if this parameter is not specified.\n");
@@ -64,10 +60,19 @@ struct SynthXilinxPass : public Pass
log(" (this feature is experimental and incomplete)\n");
log("\n");
log(" -nobram\n");
- log(" disable infering of block rams\n");
+ log(" disable inference of block rams\n");
log("\n");
log(" -nodram\n");
- log(" disable infering of distributed rams\n");
+ log(" disable inference of distributed rams\n");
+ log("\n");
+ log(" -nosrl\n");
+ log(" disable inference of shift registers\n");
+ log("\n");
+ log(" -nocarry\n");
+ log(" do not use XORCY/MUXCY/CARRY4 cells in output netlist\n");
+ log("\n");
+ log(" -nowidelut\n");
+ log(" do not use MUXF[78] resources to implement LUTs larger than LUT6s\n");
log("\n");
log(" -run <from_label>:<to_label>\n");
log(" only run the commands between the labels (see below). an empty\n");
@@ -82,71 +87,33 @@ struct SynthXilinxPass : public Pass
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
- log("\n");
- log(" begin:\n");
- log(" read_verilog -lib +/xilinx/cells_sim.v\n");
- log(" read_verilog -lib +/xilinx/cells_xtra.v\n");
- log(" read_verilog -lib +/xilinx/brams_bb.v\n");
- log(" hierarchy -check -top <top>\n");
- log("\n");
- log(" flatten: (only if -flatten)\n");
- log(" proc\n");
- log(" flatten\n");
- log("\n");
- log(" coarse:\n");
- log(" synth -run coarse\n");
- log("\n");
- log(" bram: (only executed when '-nobram' is not given)\n");
- log(" memory_bram -rules +/xilinx/brams.txt\n");
- log(" techmap -map +/xilinx/brams_map.v\n");
- log("\n");
- log(" dram: (only executed when '-nodram' is not given)\n");
- log(" memory_bram -rules +/xilinx/drams.txt\n");
- log(" techmap -map +/xilinx/drams_map.v\n");
- log("\n");
- log(" fine:\n");
- log(" opt -fast -full\n");
- log(" memory_map\n");
- log(" dffsr2dff\n");
- log(" dff2dffe\n");
- log(" opt -full\n");
- log(" techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v\n");
- log(" opt -fast\n");
- log("\n");
- log(" map_luts:\n");
- log(" abc -luts 2:2,3,6:5,10,20 [-dff] (without '-vpr' only!)\n");
- log(" abc -lut 5 [-dff] (with '-vpr' only!)\n");
- log(" clean\n");
- log("\n");
- log(" map_cells:\n");
- log(" techmap -map +/xilinx/cells_map.v\n");
- log(" dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT \\\n");
- log(" -ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT\n");
- log(" clean\n");
- log("\n");
- log(" check:\n");
- log(" hierarchy -check\n");
- log(" stat\n");
- log(" check -noinit\n");
- log("\n");
- log(" edif: (only if -edif)\n");
- log(" write_edif <file-name>\n");
- log("\n");
- log(" blif: (only if -blif)\n");
- log(" write_blif <file-name>\n");
+ help_script();
log("\n");
}
+
+ std::string top_opt, edif_file, blif_file, family;
+ bool flatten, retime, vpr, nobram, nodram, nosrl, nocarry, nowidelut;
+
+ void clear_flags() YS_OVERRIDE
+ {
+ top_opt = "-auto-top";
+ edif_file.clear();
+ blif_file.clear();
+ flatten = false;
+ retime = false;
+ vpr = false;
+ nobram = false;
+ nodram = false;
+ nosrl = false;
+ nocarry = false;
+ nowidelut = false;
+ family = "xc7";
+ }
+
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
- std::string top_opt = "-auto-top";
- std::string edif_file;
- std::string blif_file;
std::string run_from, run_to;
- bool flatten = false;
- bool retime = false;
- bool vpr = false;
- bool nobram = false;
- bool nodram = false;
+ clear_flags();
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
@@ -155,6 +122,10 @@ struct SynthXilinxPass : public Pass
top_opt = "-top " + args[++argidx];
continue;
}
+ if ((args[argidx] == "-family" || args[argidx] == "-arch") && argidx+1 < args.size()) {
+ family = args[++argidx];
+ continue;
+ }
if (args[argidx] == "-edif" && argidx+1 < args.size()) {
edif_file = args[++argidx];
continue;
@@ -179,6 +150,14 @@ struct SynthXilinxPass : public Pass
retime = true;
continue;
}
+ if (args[argidx] == "-nocarry") {
+ nocarry = true;
+ continue;
+ }
+ if (args[argidx] == "-nowidelut") {
+ nowidelut = true;
+ continue;
+ }
if (args[argidx] == "-vpr") {
vpr = true;
continue;
@@ -191,114 +170,140 @@ struct SynthXilinxPass : public Pass
nodram = true;
continue;
}
+ if (args[argidx] == "-nosrl") {
+ nosrl = true;
+ continue;
+ }
break;
}
extra_args(args, argidx, design);
+ if (family != "xcup" && family != "xcu" && family != "xc7" && family != "xc6s")
+ log_cmd_error("Invalid Xilinx -family setting: %s\n", family.c_str());
+
if (!design->full_selection())
log_cmd_error("This command only operates on fully selected designs!\n");
- bool active = run_from.empty();
-
log_header(design, "Executing SYNTH_XILINX pass.\n");
log_push();
- if (check_label(active, run_from, run_to, "begin"))
- {
- if (vpr) {
- Pass::call(design, "read_verilog -lib -D_EXPLICIT_CARRY +/xilinx/cells_sim.v");
- } else {
- Pass::call(design, "read_verilog -lib +/xilinx/cells_sim.v");
- }
+ run_script(design, run_from, run_to);
- Pass::call(design, "read_verilog -lib +/xilinx/cells_xtra.v");
+ log_pop();
+ }
- if (!nobram) {
- Pass::call(design, "read_verilog -lib +/xilinx/brams_bb.v");
- }
+ void script() YS_OVERRIDE
+ {
+ if (check_label("begin")) {
+ if (vpr)
+ run("read_verilog -lib -D_EXPLICIT_CARRY +/xilinx/cells_sim.v");
+ else
+ run("read_verilog -lib +/xilinx/cells_sim.v");
+
+ run("read_verilog -lib +/xilinx/cells_xtra.v");
- Pass::call(design, stringf("hierarchy -check %s", top_opt.c_str()));
+ if (!nobram || help_mode)
+ run("read_verilog -lib +/xilinx/brams_bb.v", "(skip if '-nobram')");
+
+ run(stringf("hierarchy -check %s", top_opt.c_str()));
}
- if (flatten && check_label(active, run_from, run_to, "flatten"))
- {
- Pass::call(design, "proc");
- Pass::call(design, "flatten");
+ if (check_label("flatten", "(with '-flatten' only)")) {
+ if (flatten || help_mode) {
+ run("proc");
+ run("flatten");
+ }
}
- if (check_label(active, run_from, run_to, "coarse"))
- {
- Pass::call(design, "synth -run coarse");
+ if (check_label("coarse")) {
+ run("synth -run coarse");
}
- if (check_label(active, run_from, run_to, "bram"))
- {
- if (!nobram) {
- Pass::call(design, "memory_bram -rules +/xilinx/brams.txt");
- Pass::call(design, "techmap -map +/xilinx/brams_map.v");
+ if (check_label("bram", "(skip if '-nobram')")) {
+ if (!nobram || help_mode) {
+ run("memory_bram -rules +/xilinx/brams.txt");
+ run("techmap -map +/xilinx/brams_map.v");
}
}
- if (check_label(active, run_from, run_to, "dram"))
- {
- if (!nodram) {
- Pass::call(design, "memory_bram -rules +/xilinx/drams.txt");
- Pass::call(design, "techmap -map +/xilinx/drams_map.v");
+ if (check_label("dram", "(skip if '-nodram')")) {
+ if (!nodram || help_mode) {
+ run("memory_bram -rules +/xilinx/drams.txt");
+ run("techmap -map +/xilinx/drams_map.v");
}
}
- if (check_label(active, run_from, run_to, "fine"))
- {
- Pass::call(design, "opt -fast -full");
- Pass::call(design, "memory_map");
- Pass::call(design, "dffsr2dff");
- Pass::call(design, "dff2dffe");
- Pass::call(design, "opt -full");
-
- if (vpr) {
- Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v -D _EXPLICIT_CARRY");
- } else {
- Pass::call(design, "techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v");
+ if (check_label("fine")) {
+ // shregmap -tech xilinx can cope with $shiftx and $mux
+ // cells for identifiying variable-length shift registers,
+ // so attempt to convert $pmux-es to the former
+ if (!nosrl || help_mode)
+ run("pmux2shiftx", "(skip if '-nosrl')");
+
+ run("opt -fast -full");
+ run("memory_map");
+ run("dffsr2dff");
+ run("dff2dffe");
+ run("opt -full");
+
+ if (!nosrl || help_mode) {
+ // shregmap operates on bit-level flops, not word-level,
+ // so break those down here
+ run("simplemap t:$dff t:$dffe", "(skip if '-nosrl')");
+ // shregmap with '-tech xilinx' infers variable length shift regs
+ run("shregmap -tech xilinx -minlen 3", "(skip if '-nosrl')");
}
- Pass::call(design, "hierarchy -check");
- Pass::call(design, "opt -fast");
+ if (help_mode)
+ run("techmap -map +/techmap.v [-map +/xilinx/arith_map.v]", "(skip if '-nocarry')");
+ else if (!nocarry) {
+ if (!vpr)
+ run("techmap -map +/techmap.v -map +/xilinx/arith_map.v");
+ else
+ run("techmap -map +/techmap.v -map +/xilinx/arith_map.v -D _EXPLICIT_CARRY");
+ }
+
+ run("opt -fast");
}
- if (check_label(active, run_from, run_to, "map_luts"))
- {
- Pass::call(design, "abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
- Pass::call(design, "clean");
- Pass::call(design, "techmap -map +/xilinx/lut_map.v");
+ if (check_label("map_cells")) {
+ run("techmap -map +/techmap.v -map +/xilinx/cells_map.v");
+ run("clean");
}
- if (check_label(active, run_from, run_to, "map_cells"))
- {
- Pass::call(design, "techmap -map +/xilinx/cells_map.v");
- Pass::call(design, "dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT "
+ if (check_label("map_luts")) {
+ if (help_mode)
+ run("abc -luts 2:2,3,6:5[,10,20] [-dff]", "(skip if 'nowidelut', only for '-retime')");
+ else if (nowidelut)
+ run("abc -luts 2:2,3,6:5" + string(retime ? " -dff" : ""));
+ else
+ run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
+ run("clean");
+ // This shregmap call infers fixed length shift registers after abc
+ // has performed any necessary retiming
+ if (!nosrl || help_mode)
+ run("shregmap -minlen 3 -init -params -enpol any_or_none", "(skip if '-nosrl')");
+ run("techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v -map +/xilinx/cells_map.v");
+ run("dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT "
"-ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT");
- Pass::call(design, "clean");
+ run("clean");
}
- if (check_label(active, run_from, run_to, "check"))
- {
- Pass::call(design, "hierarchy -check");
- Pass::call(design, "stat");
- Pass::call(design, "check -noinit");
+ if (check_label("check")) {
+ run("hierarchy -check");
+ run("stat -tech xilinx");
+ run("check -noinit");
}
- if (check_label(active, run_from, run_to, "edif"))
- {
- if (!edif_file.empty())
- Pass::call(design, stringf("write_edif -pvector bra %s", edif_file.c_str()));
- }
- if (check_label(active, run_from, run_to, "blif"))
- {
- if (!blif_file.empty())
- Pass::call(design, stringf("write_blif %s", edif_file.c_str()));
+ if (check_label("edif")) {
+ if (!edif_file.empty() || help_mode)
+ run(stringf("write_edif -pvector bra %s", edif_file.c_str()));
}
- log_pop();
+ if (check_label("blif")) {
+ if (!blif_file.empty() || help_mode)
+ run(stringf("write_blif %s", edif_file.c_str()));
+ }
}
} SynthXilinxPass;