diff options
Diffstat (limited to 'techlibs/xilinx')
22 files changed, 1379 insertions, 174 deletions
diff --git a/techlibs/xilinx/Makefile.inc b/techlibs/xilinx/Makefile.inc index d68f03bb4..2b1af289c 100644 --- a/techlibs/xilinx/Makefile.inc +++ b/techlibs/xilinx/Makefile.inc @@ -5,6 +5,8 @@ GENFILES += techlibs/xilinx/brams_init_36.vh GENFILES += techlibs/xilinx/brams_init_32.vh GENFILES += techlibs/xilinx/brams_init_18.vh GENFILES += techlibs/xilinx/brams_init_16.vh +GENFILES += techlibs/xilinx/brams_init_9.vh +GENFILES += techlibs/xilinx/brams_init_8.vh EXTRA_OBJS += techlibs/xilinx/brams_init.mk .SECONDARY: techlibs/xilinx/brams_init.mk @@ -18,21 +20,33 @@ techlibs/xilinx/brams_init_36.vh: techlibs/xilinx/brams_init.mk techlibs/xilinx/brams_init_32.vh: techlibs/xilinx/brams_init.mk techlibs/xilinx/brams_init_18.vh: techlibs/xilinx/brams_init.mk techlibs/xilinx/brams_init_16.vh: techlibs/xilinx/brams_init.mk +techlibs/xilinx/brams_init_9.vh: techlibs/xilinx/brams_init.mk +techlibs/xilinx/brams_init_8.vh: techlibs/xilinx/brams_init.mk $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_map.v)) $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_sim.v)) $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/cells_xtra.v)) -$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams.txt)) -$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_map.v)) -$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/brams_bb.v)) -$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/drams.txt)) -$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/drams_map.v)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/xc6s_brams.txt)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/xc6s_brams_map.v)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/xc6s_brams_bb.v)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/xc7_brams.txt)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/xc7_brams_map.v)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/xc7_brams_bb.v)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/lutrams.txt)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/lutrams_map.v)) $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/arith_map.v)) $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/ff_map.v)) $(eval $(call add_share_file,share/xilinx,techlibs/xilinx/lut_map.v)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/mux_map.v)) + +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/abc_xc7.box)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/abc_xc7.lut)) +$(eval $(call add_share_file,share/xilinx,techlibs/xilinx/abc_xc7_nowide.lut)) $(eval $(call add_gen_share_file,share/xilinx,techlibs/xilinx/brams_init_36.vh)) $(eval $(call add_gen_share_file,share/xilinx,techlibs/xilinx/brams_init_32.vh)) $(eval $(call add_gen_share_file,share/xilinx,techlibs/xilinx/brams_init_18.vh)) $(eval $(call add_gen_share_file,share/xilinx,techlibs/xilinx/brams_init_16.vh)) +$(eval $(call add_gen_share_file,share/xilinx,techlibs/xilinx/brams_init_9.vh)) +$(eval $(call add_gen_share_file,share/xilinx,techlibs/xilinx/brams_init_8.vh)) diff --git a/techlibs/xilinx/abc_xc7.box b/techlibs/xilinx/abc_xc7.box new file mode 100644 index 000000000..3789ff350 --- /dev/null +++ b/techlibs/xilinx/abc_xc7.box @@ -0,0 +1,58 @@ +# Max delays from https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLL_L.sdf + +# NB: Inputs/Outputs must be ordered alphabetically +# (with exceptions for carry in/out) + +# Average across F7[AB]MUX +# Inputs: I0 I1 S0 +# Outputs: O +F7MUX 1 1 3 1 +204 208 286 + +# Inputs: I0 I1 S0 +# Outputs: O +MUXF8 2 1 3 1 +104 94 273 + +# Inputs: I0 I1 I2 I3 S0 S1 +# Outputs: O +$__MUXF78 3 1 6 1 +294 297 311 317 390 273 + +# CARRY4 + CARRY4_[ABCD]X +# Inputs: CYINIT DI0 DI1 DI2 DI3 S0 S1 S2 S3 CI +# Outputs: O0 O1 O2 O3 CO0 CO1 CO2 CO3 +# (NB: carry chain input/output must be last +# input/output and the entire bus has been +# moved there overriding the otherwise +# alphabetical ordering) +CARRY4 4 1 10 8 +482 - - - - 223 - - - 222 +598 407 - - - 400 205 - - 334 +584 556 537 - - 523 558 226 - 239 +642 615 596 438 - 582 618 330 227 313 +536 379 - - - 340 - - - 271 +494 465 445 - - 433 469 - - 157 +592 540 520 356 - 512 548 292 - 228 +580 526 507 398 385 508 528 378 380 114 + +# SLICEM/A6LUT +# Inputs: A0 A1 A2 A3 A4 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 WCLK WE +# Outputs: DPO SPO +RAM32X1D 5 0 13 2 +- - - - - - 631 472 407 238 127 - - +631 472 407 238 127 - - - - - - - - + +# SLICEM/A6LUT +# Inputs: A0 A1 A2 A3 A4 A5 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 DPRA5 WCLK WE +# Outputs: DPO SPO +RAM64X1D 6 0 15 2 +- - - - - - - 642 631 472 407 238 127 - - +642 631 472 407 238 127 - - - - - - - - - + +# SLICEM/A6LUT + F7[AB]MUX +# Inputs: A0 A1 A2 A3 A4 A5 A6 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 DPRA5 DPRA6 WCLK WE +# Outputs: DPO SPO +RAM128X1D 7 0 17 2 +- - - - - - - - 1009 998 839 774 605 494 450 - - +1047 1036 877 812 643 532 478 - - - - - - - - - - diff --git a/techlibs/xilinx/abc_xc7.lut b/techlibs/xilinx/abc_xc7.lut new file mode 100644 index 000000000..bcbdec127 --- /dev/null +++ b/techlibs/xilinx/abc_xc7.lut @@ -0,0 +1,15 @@ +# Max delays from https://github.com/SymbiFlow/prjxray-db/blob/82bf5f158cd8e9a11ac4d04f1aeef48ed1a528a5/artix7/timings/CLBLL_L.sdf +# and https://github.com/SymbiFlow/prjxray-db/blob/82bf5f158cd8e9a11ac4d04f1aeef48ed1a528a5/artix7/tile_type_CLBLL_L.json + +# K area delay +1 1 127 +2 2 127 238 +3 3 127 238 407 +4 3 127 238 407 472 +5 3 127 238 407 472 631 +6 5 127 238 407 472 631 642 + # (F7[AB]MUX.S + [AC]OUTMUX) / 2 +7 10 464 513 624 793 858 1017 1028 + # F8MUX.S+BOUTMUX + # F8MUX.I0+F7MUX.S+BOUTMUX +8 20 468 585 634 745 914 979 1138 1149 diff --git a/techlibs/xilinx/abc_xc7_nowide.lut b/techlibs/xilinx/abc_xc7_nowide.lut new file mode 100644 index 000000000..fab48c879 --- /dev/null +++ b/techlibs/xilinx/abc_xc7_nowide.lut @@ -0,0 +1,10 @@ +# Max delays from https://github.com/SymbiFlow/prjxray-db/blob/82bf5f158cd8e9a11ac4d04f1aeef48ed1a528a5/artix7/timings/CLBLL_L.sdf +# and https://github.com/SymbiFlow/prjxray-db/blob/82bf5f158cd8e9a11ac4d04f1aeef48ed1a528a5/artix7/tile_type_CLBLL_L.json + +# K area delay +1 1 127 +2 2 127 238 +3 3 127 238 407 +4 3 127 238 407 472 +5 3 127 238 407 472 631 +6 5 127 238 407 472 631 642 diff --git a/techlibs/xilinx/arith_map.v b/techlibs/xilinx/arith_map.v index 09a5f07e8..5c848d4e6 100644 --- a/techlibs/xilinx/arith_map.v +++ b/techlibs/xilinx/arith_map.v @@ -180,7 +180,7 @@ module _80_xilinx_alu (A, B, CI, BI, X, Y, CO); // First one if (i == 0) begin - CARRY4 #(.IS_INITIALIZED(1'd1)) carry4_1st_part + CARRY4 carry4_1st_part ( .CYINIT(CI), .CI (1'd0), @@ -207,7 +207,7 @@ module _80_xilinx_alu (A, B, CI, BI, X, Y, CO); // First one if (i == 0) begin - CARRY4 #(.IS_INITIALIZED(1'd1)) carry4_1st_full + CARRY4 carry4_1st_full ( .CYINIT(CI), .CI (1'd0), diff --git a/techlibs/xilinx/brams_init.py b/techlibs/xilinx/brams_init.py index d46a2b4f7..10057a0cb 100644 --- a/techlibs/xilinx/brams_init.py +++ b/techlibs/xilinx/brams_init.py @@ -1,5 +1,17 @@ #!/usr/bin/env python3 +with open("techlibs/xilinx/brams_init_9.vh", "w") as f: + for i in range(4): + init_snippets = [" INIT[%3d*9+8]" % (k+256*i,) for k in range(255, -1, -1)] + for k in range(4, 256, 4): + init_snippets[k] = "\n " + init_snippets[k] + print(".INITP_%02X({%s})," % (i, ",".join(init_snippets)), file=f) + for i in range(32): + init_snippets = [" INIT[%3d*9 +: 8]" % (k+32*i,) for k in range(31, -1, -1)] + for k in range(4, 32, 4): + init_snippets[k] = "\n " + init_snippets[k] + print(".INIT_%02X({%s})," % (i, ",".join(init_snippets)), file=f) + with open("techlibs/xilinx/brams_init_18.vh", "w") as f: for i in range(8): init_snippets = [" INIT[%3d*9+8]" % (k+256*i,) for k in range(255, -1, -1)] @@ -24,6 +36,10 @@ with open("techlibs/xilinx/brams_init_36.vh", "w") as f: init_snippets[k] = "\n " + init_snippets[k] print(".INIT_%02X({%s})," % (i, ",".join(init_snippets)), file=f) +with open("techlibs/xilinx/brams_init_8.vh", "w") as f: + for i in range(32): + print(".INIT_%02X(INIT[%3d*256 +: 256])," % (i, i), file=f) + with open("techlibs/xilinx/brams_init_16.vh", "w") as f: for i in range(64): print(".INIT_%02X(INIT[%3d*256 +: 256])," % (i, i), file=f) diff --git a/techlibs/xilinx/cells_map.v b/techlibs/xilinx/cells_map.v index 40789ddbe..b8e5bafc7 100644 --- a/techlibs/xilinx/cells_map.v +++ b/techlibs/xilinx/cells_map.v @@ -2,6 +2,7 @@ * yosys -- Yosys Open SYnthesis Suite * * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * 2019 Eddie Hung <eddie@fpgeh.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -23,9 +24,9 @@ module _90_dff_nn0_to_np0 (input D, C, R, output Q); \$_DFF_NP0_ _TECHMAP_REPLA (* 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 +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 _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; @@ -55,7 +56,6 @@ module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, o localparam [DEPTH-1:0] INIT_R = brev(INIT); parameter _TECHMAP_CONSTMSK_L_ = 0; - parameter _TECHMAP_CONSTVAL_L_ = 0; wire CE; generate @@ -88,69 +88,280 @@ module \$__XILINX_SHREG_ (input C, input D, input [31:0] L, input E, output Q, o 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[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 + else + \$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(1'bx), .S0(L[5]), .S1(L[6]), .O(Q)); 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[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 + else + \$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(T6), .S0(L[5]), .S1(L[6]), .O(Q)); 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[ 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 + else + \$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T4), .I3(T6), .S0(L[5]), .S1(L[6]), .O(Q)); + end + // For fixed length, if just 1 over a convenient value, decompose + else if (DEPTH <= 129 && &_TECHMAP_CONSTMSK_L_) begin + wire T; + \$__XILINX_SHREG_ #(.DEPTH(DEPTH-1), .INIT(INIT[DEPTH-1:1]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl (.C(C), .D(D), .L({32{1'b1}}), .E(E), .Q(T)); + \$__XILINX_SHREG_ #(.DEPTH(1), .INIT(INIT[0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_last (.C(C), .D(T), .L(L), .E(E), .Q(Q)); end - else if (DEPTH <= 129 && ~&_TECHMAP_CONSTMSK_L_) begin - // Handle cases where fixed-length depth is - // just 1 over a convenient value + // For variable length, if just 1 over a convenient value, then bump up one more + else if (DEPTH < 129 && ~&_TECHMAP_CONSTMSK_L_) \$__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)); + else begin + localparam depth0 = 128; + localparam num_srl128 = DEPTH / depth0; + localparam depthN = DEPTH % depth0; + wire [num_srl128 + (depthN > 0 ? 1 : 0) - 1:0] T; + wire [num_srl128 + (depthN > 0 ? 1 : 0) :0] S; + assign S[0] = D; + genvar i; + for (i = 0; i < num_srl128; i++) + \$__XILINX_SHREG_ #(.DEPTH(depth0), .INIT(INIT[DEPTH-1-i*depth0-:depth0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl (.C(C), .D(S[i]), .L(L[$clog2(depth0)-1:0]), .E(E), .Q(T[i]), .SO(S[i+1])); + + if (depthN > 0) + \$__XILINX_SHREG_ #(.DEPTH(depthN), .INIT(INIT[depthN-1:0]), .CLKPOL(CLKPOL), .ENPOL(ENPOL)) fpga_srl_last (.C(C), .D(S[num_srl128]), .L(L[$clog2(depth0)-1:0]), .E(E), .Q(T[num_srl128])); + + if (&_TECHMAP_CONSTMSK_L_) + assign Q = T[num_srl128 + (depthN > 0 ? 1 : 0) - 1]; + else + assign Q = T[L[DEPTH-1:$clog2(depth0)]]; + end + endgenerate +endmodule + +`ifdef MIN_MUX_INPUTS +module \$__XILINX_SHIFTX (A, B, Y); + parameter A_SIGNED = 0; + parameter B_SIGNED = 0; + parameter A_WIDTH = 1; + parameter B_WIDTH = 1; + parameter Y_WIDTH = 1; + + input [A_WIDTH-1:0] A; + input [B_WIDTH-1:0] B; + output [Y_WIDTH-1:0] Y; + + parameter [A_WIDTH-1:0] _TECHMAP_CONSTMSK_A_ = 0; + parameter [A_WIDTH-1:0] _TECHMAP_CONSTVAL_A_ = 0; + parameter [B_WIDTH-1:0] _TECHMAP_CONSTMSK_B_ = 0; + parameter [B_WIDTH-1:0] _TECHMAP_CONSTVAL_B_ = 0; + + function integer A_WIDTH_trimmed; + input integer start; + begin + A_WIDTH_trimmed = start; + while (A_WIDTH_trimmed > 0 && _TECHMAP_CONSTMSK_A_[A_WIDTH_trimmed-1] && _TECHMAP_CONSTVAL_A_[A_WIDTH_trimmed-1] === 1'bx) + A_WIDTH_trimmed = A_WIDTH_trimmed - 1; + end + endfunction + + generate + genvar i, j; + // Bit-blast + if (Y_WIDTH > 1) begin + for (i = 0; i < Y_WIDTH; i++) + \$__XILINX_SHIFTX #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(A_WIDTH-Y_WIDTH+1), .B_WIDTH(B_WIDTH), .Y_WIDTH(1'd1)) bitblast (.A(A[A_WIDTH-Y_WIDTH+i:i]), .B(B), .Y(Y[i])); + end + // If the LSB of B is constant zero (and Y_WIDTH is 1) then + // we can optimise by removing every other entry from A + // and popping the constant zero from B + else if (_TECHMAP_CONSTMSK_B_[0] && !_TECHMAP_CONSTVAL_B_[0]) begin + wire [(A_WIDTH+1)/2-1:0] A_i; + for (i = 0; i < (A_WIDTH+1)/2; i++) + assign A_i[i] = A[i*2]; + \$__XILINX_SHIFTX #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH((A_WIDTH+1'd1)/2'd2), .B_WIDTH(B_WIDTH-1'd1), .Y_WIDTH(Y_WIDTH)) _TECHMAP_REPLACE_ (.A(A_i), .B(B[B_WIDTH-1:1]), .Y(Y)); + end + // Trim off any leading 1'bx -es in A + else if (_TECHMAP_CONSTMSK_A_[A_WIDTH-1] && _TECHMAP_CONSTVAL_A_[A_WIDTH-1] === 1'bx) begin + localparam A_WIDTH_new = A_WIDTH_trimmed(A_WIDTH-1); + \$__XILINX_SHIFTX #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(A_WIDTH_new), .B_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) _TECHMAP_REPLACE_ (.A(A[A_WIDTH_new-1:0]), .B(B), .Y(Y)); + end + else if (A_WIDTH < `MIN_MUX_INPUTS) begin + wire _TECHMAP_FAIL_ = 1; + end + else if (A_WIDTH == 2) begin + MUXF7 fpga_hard_mux (.I0(A[0]), .I1(A[1]), .S(B[0]), .O(Y)); + end + else if (A_WIDTH <= 4) begin + wire [4-1:0] Ax; + if (A_WIDTH == 4) + assign Ax = A; + else + // Rather than extend with 1'bx which gets flattened to 1'b0 + // causing the "don't care" status to get lost, extend with + // the same driver of F7B.I0 so that we can optimise F7B away + // later + assign Ax = {A[1], A}; + \$__XILINX_MUXF78 fpga_hard_mux (.I0(Ax[0]), .I1(Ax[2]), .I2(Ax[1]), .I3(Ax[3]), .S0(B[1]), .S1(B[0]), .O(Y)); + end + // Note that the following decompositions are 'backwards' in that + // the LSBs are placed on the hard resources, and the soft resources + // are used for MSBs. + // This has the effect of more effectively utilising the hard mux; + // take for example a 5:1 multiplexer, currently this would map as: + // + // A[0] \___ __ A[0] \__ __ + // A[4] / \| \ whereas the more A[1] / \| \ + // A[1] _____| | obvious mapping A[2] \___| | + // A[2] _____| |-- of MSBs to hard A[3] / | |__ + // A[3]______| | resources would A[4] ____| | + // |__/ lead to: 1'bx ____| | + // || |__/ + // || || + // B[1:0] B[1:2] + // + // Expectation would be that the 'forward' mapping (right) is more + // area efficient (consider a 9:1 multiplexer using 2x4:1 multiplexers + // on its I0 and I1 inputs, and A[8] and 1'bx on its I2 and I3 inputs) + // but that the 'backwards' mapping (left) is more delay efficient + // since smaller LUTs are faster than wider ones. + else if (A_WIDTH <= 8) begin + wire [8-1:0] Ax = {{{8-A_WIDTH}{1'bx}}, A}; + wire T0 = B[2] ? Ax[4] : Ax[0]; + wire T1 = B[2] ? Ax[5] : Ax[1]; + wire T2 = B[2] ? Ax[6] : Ax[2]; + wire T3 = B[2] ? Ax[7] : Ax[3]; + \$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T1), .I3(T3), .S0(B[1]), .S1(B[0]), .O(Y)); + end + else if (A_WIDTH <= 16) begin + wire [16-1:0] Ax = {{{16-A_WIDTH}{1'bx}}, A}; + wire T0 = B[2] ? B[3] ? Ax[12] : Ax[4] + : B[3] ? Ax[ 8] : Ax[0]; + wire T1 = B[2] ? B[3] ? Ax[13] : Ax[5] + : B[3] ? Ax[ 9] : Ax[1]; + wire T2 = B[2] ? B[3] ? Ax[14] : Ax[6] + : B[3] ? Ax[10] : Ax[2]; + wire T3 = B[2] ? B[3] ? Ax[15] : Ax[7] + : B[3] ? Ax[11] : Ax[3]; + \$__XILINX_MUXF78 fpga_hard_mux (.I0(T0), .I1(T2), .I2(T1), .I3(T3), .S0(B[1]), .S1(B[0]), .O(Y)); 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; + localparam num_mux16 = (A_WIDTH+15) / 16; + localparam clog2_num_mux16 = $clog2(num_mux16); + wire [num_mux16-1:0] T; + wire [num_mux16*16-1:0] Ax = {{(num_mux16*16-A_WIDTH){1'bx}}, A}; + for (i = 0; i < num_mux16; i++) + \$__XILINX_SHIFTX #( + .A_SIGNED(A_SIGNED), + .B_SIGNED(B_SIGNED), + .A_WIDTH(16), + .B_WIDTH(4), + .Y_WIDTH(Y_WIDTH) + ) fpga_mux ( + .A(Ax[i*16+:16]), + .B(B[3:0]), + .Y(T[i]) + ); + \$__XILINX_SHIFTX #( + .A_SIGNED(A_SIGNED), + .B_SIGNED(B_SIGNED), + .A_WIDTH(num_mux16), + .B_WIDTH(clog2_num_mux16), + .Y_WIDTH(Y_WIDTH) + ) _TECHMAP_REPLACE_ ( + .A(T), + .B(B[B_WIDTH-1-:clog2_num_mux16]), + .Y(Y)); end endgenerate endmodule -`ifndef SRL_ONLY +(* techmap_celltype = "$__XILINX_SHIFTX" *) +module _90__XILINX_SHIFTX (A, B, Y); + parameter A_SIGNED = 0; + parameter B_SIGNED = 0; + parameter A_WIDTH = 1; + parameter B_WIDTH = 1; + parameter Y_WIDTH = 1; + + input [A_WIDTH-1:0] A; + input [B_WIDTH-1:0] B; + output [Y_WIDTH-1:0] Y; + + \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(A_WIDTH), .B_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) _TECHMAP_REPLACE_ (.A(A), .B(B), .Y(Y)); +endmodule + +module \$_MUX_ (A, B, S, Y); + input A, B, S; + output Y; + generate + if (`MIN_MUX_INPUTS == 2) + \$__XILINX_SHIFTX #(.A_SIGNED(0), .B_SIGNED(0), .A_WIDTH(2), .B_WIDTH(1), .Y_WIDTH(1)) _TECHMAP_REPLACE_ (.A({B,A}), .B(S), .Y(Y)); + else + wire _TECHMAP_FAIL_ = 1; + endgenerate +endmodule + +module \$_MUX4_ (A, B, C, D, S, T, Y); + input A, B, C, D, S, T; + output Y; + \$__XILINX_SHIFTX #(.A_SIGNED(0), .B_SIGNED(0), .A_WIDTH(4), .B_WIDTH(2), .Y_WIDTH(1)) _TECHMAP_REPLACE_ (.A({D,C,B,A}), .B({T,S}), .Y(Y)); +endmodule + +module \$_MUX8_ (A, B, C, D, E, F, G, H, S, T, U, Y); + input A, B, C, D, E, F, G, H, S, T, U; + output Y; + \$__XILINX_SHIFTX #(.A_SIGNED(0), .B_SIGNED(0), .A_WIDTH(8), .B_WIDTH(3), .Y_WIDTH(1)) _TECHMAP_REPLACE_ (.A({H,G,F,E,D,C,B,A}), .B({U,T,S}), .Y(Y)); +endmodule + +module \$_MUX16_ (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, S, T, U, V, Y); + input A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, S, T, U, V; + output Y; + \$__XILINX_SHIFTX #(.A_SIGNED(0), .B_SIGNED(0), .A_WIDTH(16), .B_WIDTH(4), .Y_WIDTH(1)) _TECHMAP_REPLACE_ (.A({P,O,N,M,L,K,J,I,H,G,F,E,D,C,B,A}), .B({V,U,T,S}), .Y(Y)); +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; + 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; + 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; + 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)); +endmodule `endif diff --git a/techlibs/xilinx/cells_sim.v b/techlibs/xilinx/cells_sim.v index 3a4540b83..3ad96d7fb 100644 --- a/techlibs/xilinx/cells_sim.v +++ b/techlibs/xilinx/cells_sim.v @@ -159,19 +159,38 @@ module MUXCY(output O, input CI, DI, S); assign O = S ? CI : DI; endmodule +(* abc_box_id = 1, lib_whitebox *) module MUXF7(output O, input I0, I1, S); assign O = S ? I1 : I0; endmodule +(* abc_box_id = 2, lib_whitebox *) module MUXF8(output O, input I0, I1, S); assign O = S ? I1 : I0; 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); +endmodule +`endif + module XORCY(output O, input CI, LI); assign O = CI ^ LI; endmodule -module CARRY4(output [3:0] CO, O, input CI, CYINIT, input [3:0] DI, S); +(* abc_box_id = 4, lib_whitebox *) +module CARRY4( + (* abc_carry *) + output [3:0] CO, + output [3:0] O, + (* abc_carry *) + input CI, + input CYINIT, + input [3:0] DI, S +); assign O = S ^ {CO[2:0], CI | CYINIT}; assign CO[0] = S[0] ? CI | CYINIT : DI[0]; assign CO[1] = S[1] ? CO[0] : DI[1]; @@ -215,7 +234,7 @@ module FDRE (output reg Q, input C, CE, D, R); endmodule module FDSE (output reg Q, input C, CE, D, S); - parameter [0:0] INIT = 1'b0; + parameter [0:0] INIT = 1'b1; parameter [0:0] IS_C_INVERTED = 1'b0; parameter [0:0] IS_D_INVERTED = 1'b0; parameter [0:0] IS_S_INVERTED = 1'b0; @@ -241,7 +260,7 @@ module FDCE (output reg Q, input C, CE, D, CLR); endmodule module FDPE (output reg Q, input C, CE, D, PRE); - parameter [0:0] INIT = 1'b0; + parameter [0:0] INIT = 1'b1; parameter [0:0] IS_C_INVERTED = 1'b0; parameter [0:0] IS_D_INVERTED = 1'b0; parameter [0:0] IS_PRE_INVERTED = 1'b0; @@ -278,9 +297,36 @@ 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 +(* abc_box_id = 5 *) +module RAM32X1D ( + output DPO, SPO, + (* abc_scc_break *) + input D, + input WCLK, + (* abc_scc_break *) + input 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 + +(* abc_box_id = 6 *) module RAM64X1D ( output DPO, SPO, - input D, WCLK, WE, + (* abc_scc_break *) + input D, + input WCLK, + (* abc_scc_break *) + input WE, input A0, A1, A2, A3, A4, A5, input DPRA0, DPRA1, DPRA2, DPRA3, DPRA4, DPRA5 ); @@ -295,9 +341,14 @@ module RAM64X1D ( always @(posedge clk) if (WE) mem[a] <= D; endmodule +(* abc_box_id = 7 *) module RAM128X1D ( output DPO, SPO, - input D, WCLK, WE, + (* abc_scc_break *) + input D, + input WCLK, + (* abc_scc_break *) + input WE, input [6:0] A, DPRA ); parameter INIT = 128'h0; diff --git a/techlibs/xilinx/cells_xtra.sh b/techlibs/xilinx/cells_xtra.sh index 8e39b440d..53b528820 100644 --- a/techlibs/xilinx/cells_xtra.sh +++ b/techlibs/xilinx/cells_xtra.sh @@ -116,16 +116,16 @@ 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 xtract_cell_decl RAM64M - xtract_cell_decl RAM64X1D + #xtract_cell_decl RAM64X1D xtract_cell_decl RAM64X1S xtract_cell_decl RAM64X1S_1 xtract_cell_decl RAM64X2S diff --git a/techlibs/xilinx/cells_xtra.v b/techlibs/xilinx/cells_xtra.v index fbcc74682..15fa1b63a 100644 --- a/techlibs/xilinx/cells_xtra.v +++ b/techlibs/xilinx/cells_xtra.v @@ -3655,17 +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; @@ -3705,13 +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; @@ -3756,13 +3738,6 @@ module RAM64M (...); input WE; endmodule -module RAM64X1D (...); - parameter [63:0] INIT = 64'h0000000000000000; - parameter [0:0] IS_WCLK_INVERTED = 1'b0; - output DPO, SPO; - input A0, A1, A2, A3, A4, A5, D, DPRA0, DPRA1, DPRA2, DPRA3, DPRA4, DPRA5, WCLK, WE; -endmodule - module RAM64X1S (...); parameter [63:0] INIT = 64'h0000000000000000; parameter [0:0] IS_WCLK_INVERTED = 1'b0; diff --git a/techlibs/xilinx/ff_map.v b/techlibs/xilinx/ff_map.v index 13beaa6ae..4571f6d5c 100644 --- a/techlibs/xilinx/ff_map.v +++ b/techlibs/xilinx/ff_map.v @@ -33,10 +33,10 @@ module \$_DFF_NP0_ (input D, C, R, output Q); FDCE_1 #(.INIT(|0)) _TECHMAP_REPL module \$_DFF_PN0_ (input D, C, R, output Q); FDCE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); endmodule module \$_DFF_PP0_ (input D, C, R, output Q); FDCE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endmodule -module \$_DFF_NN1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule -module \$_DFF_NP1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule -module \$_DFF_PN1_ (input D, C, R, output Q); FDPE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule -module \$_DFF_PP1_ (input D, C, R, output Q); FDPE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule +module \$_DFF_NN1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|1)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule +module \$_DFF_NP1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|1)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule +module \$_DFF_PN1_ (input D, C, R, output Q); FDPE #(.INIT(|1)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule +module \$_DFF_PP1_ (input D, C, R, output Q); FDPE #(.INIT(|1)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule `endif diff --git a/techlibs/xilinx/lut_map.v b/techlibs/xilinx/lut_map.v index d07c59dee..13d3c3268 100644 --- a/techlibs/xilinx/lut_map.v +++ b/techlibs/xilinx/lut_map.v @@ -29,61 +29,86 @@ module \$lut (A, Y); input [WIDTH-1:0] A; output Y; + // Need to swap input ordering, and fix init accordingly, + // to match ABC's expectation of LUT inputs in non-decreasing + // delay order + function [WIDTH-1:0] permute_index; + input [WIDTH-1:0] i; + integer j; + begin + permute_index = 0; + for (j = 0; j < WIDTH; j = j + 1) + permute_index[WIDTH-1 - j] = i[j]; + end + endfunction + + function [2**WIDTH-1:0] permute_init; + input [2**WIDTH-1:0] orig; + integer i; + begin + permute_init = 0; + for (i = 0; i < 2**WIDTH; i = i + 1) + permute_init[i] = orig[permute_index(i)]; + end + endfunction + + parameter [2**WIDTH-1:0] P_LUT = permute_init(LUT); + generate if (WIDTH == 1) begin - LUT1 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), + LUT1 #(.INIT(P_LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0])); end else if (WIDTH == 2) begin - LUT2 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), - .I0(A[0]), .I1(A[1])); + LUT2 #(.INIT(P_LUT)) _TECHMAP_REPLACE_ (.O(Y), + .I0(A[1]), .I1(A[0])); end else if (WIDTH == 3) begin - LUT3 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), - .I0(A[0]), .I1(A[1]), .I2(A[2])); + LUT3 #(.INIT(P_LUT)) _TECHMAP_REPLACE_ (.O(Y), + .I0(A[2]), .I1(A[1]), .I2(A[0])); end else if (WIDTH == 4) begin - LUT4 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3])); + LUT4 #(.INIT(P_LUT)) _TECHMAP_REPLACE_ (.O(Y), + .I0(A[3]), .I1(A[2]), .I2(A[1]), + .I3(A[0])); end else if (WIDTH == 5) begin - LUT5 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4])); + LUT5 #(.INIT(P_LUT)) _TECHMAP_REPLACE_ (.O(Y), + .I0(A[4]), .I1(A[3]), .I2(A[2]), + .I3(A[1]), .I4(A[0])); end else if (WIDTH == 6) begin - LUT6 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.O(Y), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); + LUT6 #(.INIT(P_LUT)) _TECHMAP_REPLACE_ (.O(Y), + .I0(A[5]), .I1(A[4]), .I2(A[3]), + .I3(A[2]), .I4(A[1]), .I5(A[0])); end else if (WIDTH == 7) begin wire T0, T1; - LUT6 #(.INIT(LUT[63:0])) fpga_lut_0 (.O(T0), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); - LUT6 #(.INIT(LUT[127:64])) fpga_lut_1 (.O(T1), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); - MUXF7 fpga_mux_0 (.O(Y), .I0(T0), .I1(T1), .S(A[6])); + LUT6 #(.INIT(P_LUT[63:0])) fpga_lut_0 (.O(T0), + .I0(A[6]), .I1(A[5]), .I2(A[4]), + .I3(A[3]), .I4(A[2]), .I5(A[1])); + LUT6 #(.INIT(P_LUT[127:64])) fpga_lut_1 (.O(T1), + .I0(A[6]), .I1(A[5]), .I2(A[4]), + .I3(A[3]), .I4(A[2]), .I5(A[1])); + MUXF7 fpga_mux_0 (.O(Y), .I0(T0), .I1(T1), .S(A[0])); end else if (WIDTH == 8) begin wire T0, T1, T2, T3, T4, T5; - LUT6 #(.INIT(LUT[63:0])) fpga_lut_0 (.O(T0), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); - LUT6 #(.INIT(LUT[127:64])) fpga_lut_1 (.O(T1), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); - LUT6 #(.INIT(LUT[191:128])) fpga_lut_2 (.O(T2), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); - LUT6 #(.INIT(LUT[255:192])) fpga_lut_3 (.O(T3), - .I0(A[0]), .I1(A[1]), .I2(A[2]), - .I3(A[3]), .I4(A[4]), .I5(A[5])); - MUXF7 fpga_mux_0 (.O(T4), .I0(T0), .I1(T1), .S(A[6])); - MUXF7 fpga_mux_1 (.O(T5), .I0(T2), .I1(T3), .S(A[6])); - MUXF8 fpga_mux_2 (.O(Y), .I0(T4), .I1(T5), .S(A[7])); + LUT6 #(.INIT(P_LUT[63:0])) fpga_lut_0 (.O(T0), + .I0(A[7]), .I1(A[6]), .I2(A[5]), + .I3(A[4]), .I4(A[3]), .I5(A[2])); + LUT6 #(.INIT(P_LUT[127:64])) fpga_lut_1 (.O(T1), + .I0(A[7]), .I1(A[6]), .I2(A[5]), + .I3(A[4]), .I4(A[3]), .I5(A[2])); + LUT6 #(.INIT(P_LUT[191:128])) fpga_lut_2 (.O(T2), + .I0(A[7]), .I1(A[6]), .I2(A[5]), + .I3(A[4]), .I4(A[3]), .I5(A[2])); + LUT6 #(.INIT(P_LUT[255:192])) fpga_lut_3 (.O(T3), + .I0(A[7]), .I1(A[6]), .I2(A[5]), + .I3(A[4]), .I4(A[3]), .I5(A[2])); + MUXF7 fpga_mux_0 (.O(T4), .I0(T0), .I1(T1), .S(A[1])); + MUXF7 fpga_mux_1 (.O(T5), .I0(T2), .I1(T3), .S(A[1])); + MUXF8 fpga_mux_2 (.O(Y), .I0(T4), .I1(T5), .S(A[0])); end else begin wire _TECHMAP_FAIL_ = 1; end diff --git a/techlibs/xilinx/drams.txt b/techlibs/xilinx/lutrams.txt index 91632bcee..2613c206c 100644 --- a/techlibs/xilinx/drams.txt +++ b/techlibs/xilinx/lutrams.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 @@ -25,6 +38,13 @@ 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 diff --git a/techlibs/xilinx/drams_map.v b/techlibs/xilinx/lutrams_map.v index 47476b592..77041ca86 100644 --- a/techlibs/xilinx/drams_map.v +++ b/techlibs/xilinx/lutrams_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/mux_map.v b/techlibs/xilinx/mux_map.v new file mode 100644 index 000000000..91aaf2118 --- /dev/null +++ b/techlibs/xilinx/mux_map.v @@ -0,0 +1,71 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * 2019 Eddie Hung <eddie@fpgeh.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +// The purpose of these mapping rules is to allow preserve all (sufficiently +// wide) $shiftx cells during 'techmap' so that they can be mapped to hard +// resources, rather than being bit-blasted to gates during 'techmap' +// execution + +module \$shiftx (A, B, Y); + parameter A_SIGNED = 0; + parameter B_SIGNED = 0; + parameter A_WIDTH = 1; + parameter B_WIDTH = 1; + parameter Y_WIDTH = 1; + + input [A_WIDTH-1:0] A; + input [B_WIDTH-1:0] B; + output [Y_WIDTH-1:0] Y; + + parameter [B_WIDTH-1:0] _TECHMAP_CONSTMSK_B_ = 0; + parameter [B_WIDTH-1:0] _TECHMAP_CONSTVAL_B_ = 0; + + generate + if (B_SIGNED) begin + if (_TECHMAP_CONSTMSK_B_[B_WIDTH-1] && (_TECHMAP_CONSTVAL_B_[B_WIDTH-1] == 1'b0 || _TECHMAP_CONSTVAL_B_[B_WIDTH-1] === 1'bx)) + // Optimisation to remove B_SIGNED if sign bit of B is constant-0 + \$shiftx #( + .A_SIGNED(A_SIGNED), + .B_SIGNED(0), + .A_WIDTH(A_WIDTH), + .B_WIDTH(B_WIDTH-1'd1), + .Y_WIDTH(Y_WIDTH) + ) _TECHMAP_REPLACE_ ( + .A(A), .B(B[B_WIDTH-2:0]), .Y(Y) + ); + else + wire _TECHMAP_FAIL_ = 1; + end + else begin + if (((A_WIDTH + Y_WIDTH - 1) / Y_WIDTH) < `MIN_MUX_INPUTS) + wire _TECHMAP_FAIL_ = 1; + else + \$__XILINX_SHIFTX #( + .A_SIGNED(A_SIGNED), + .B_SIGNED(B_SIGNED), + .A_WIDTH(A_WIDTH), + .B_WIDTH(B_WIDTH), + .Y_WIDTH(Y_WIDTH) + ) _TECHMAP_REPLACE_ ( + .A(A), .B(B), .Y(Y) + ); + end + endgenerate +endmodule diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index a293081f1..87f4af8f7 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -2,6 +2,7 @@ * yosys -- Yosys Open SYnthesis Suite * * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at> + * (C) 2019 Eddie Hung <eddie@fpgeh.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -25,6 +26,9 @@ USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN +#define XC7_WIRE_DELAY 300 // Number with which ABC will map a 6-input gate + // to one LUT6 (instead of a LUT5 + LUT2) + struct SynthXilinxPass : public ScriptPass { SynthXilinxPass() : ScriptPass("synth_xilinx", "synthesis for Xilinx FPGAs") { } @@ -42,8 +46,9 @@ struct SynthXilinxPass : public ScriptPass log(" -top <module>\n"); log(" use the specified module as top module\n"); log("\n"); - log(" -arch {xcup|xcu|xc7|xc6s}\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"); @@ -59,13 +64,24 @@ struct SynthXilinxPass : public ScriptPass log(" (this feature is experimental and incomplete)\n"); log("\n"); log(" -nobram\n"); - log(" disable inference of block rams\n"); + log(" do not use block RAM cells in output netlist\n"); log("\n"); - log(" -nodram\n"); - log(" disable inference of distributed rams\n"); + log(" -nolutram\n"); + log(" do not use distributed RAM cells in output netlist\n"); log("\n"); log(" -nosrl\n"); - log(" disable inference of shift registers\n"); + log(" do not use distributed SRL cells in output netlist\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(" -widemux <int>\n"); + log(" enable inference of hard multiplexer resources (MUXF[78]) for muxes at or\n"); + log(" above this number of inputs (minimum value 2, recommended value >= 5).\n"); + log(" default: 0 (no inference)\n"); log("\n"); log(" -run <from_label>:<to_label>\n"); log(" only run the commands between the labels (see below). an empty\n"); @@ -78,27 +94,38 @@ struct SynthXilinxPass : public ScriptPass log(" -retime\n"); log(" run 'abc' with -dff option\n"); log("\n"); + log(" -abc9\n"); + log(" use new ABC9 flow (EXPERIMENTAL)\n"); + log("\n"); log("\n"); log("The following commands are executed by this synthesis command:\n"); help_script(); log("\n"); } - std::string top_opt, edif_file, blif_file, arch; - bool flatten, retime, vpr, nobram, nodram, nosrl; + std::string top_opt, edif_file, blif_file, family; + bool flatten, retime, vpr, nobram, nolutram, nosrl, nocarry, nowidelut, abc9; + bool flatten_before_abc; + int widemux; void clear_flags() YS_OVERRIDE { top_opt = "-auto-top"; edif_file.clear(); blif_file.clear(); + family = "xc7"; flatten = false; retime = false; vpr = false; + nocarry = false; nobram = false; - nodram = false; + nolutram = false; nosrl = false; - arch = "xc7"; + nocarry = false; + nowidelut = false; + abc9 = false; + flatten_before_abc = false; + widemux = 0; } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -113,8 +140,8 @@ struct SynthXilinxPass : public ScriptPass top_opt = "-top " + args[++argidx]; continue; } - if (args[argidx] == "-arch" && argidx+1 < args.size()) { - arch = args[++argidx]; + if ((args[argidx] == "-family" || args[argidx] == "-arch") && argidx+1 < args.size()) { + family = args[++argidx]; continue; } if (args[argidx] == "-edif" && argidx+1 < args.size()) { @@ -137,36 +164,66 @@ struct SynthXilinxPass : public ScriptPass flatten = true; continue; } + if (args[argidx] == "-flatten_before_abc") { + flatten_before_abc = true; + continue; + } if (args[argidx] == "-retime") { retime = true; continue; } + if (args[argidx] == "-nocarry") { + nocarry = true; + continue; + } + if (args[argidx] == "-nowidelut") { + nowidelut = true; + continue; + } if (args[argidx] == "-vpr") { vpr = true; continue; } + if (args[argidx] == "-nocarry") { + nocarry = true; + continue; + } if (args[argidx] == "-nobram") { nobram = true; continue; } - if (args[argidx] == "-nodram") { - nodram = true; + if (args[argidx] == "-nolutram" || /*deprecated alias*/ args[argidx] == "-nodram") { + nolutram = true; continue; } if (args[argidx] == "-nosrl") { nosrl = true; continue; } + if (args[argidx] == "-widemux" && argidx+1 < args.size()) { + widemux = atoi(args[++argidx].c_str()); + continue; + } + if (args[argidx] == "-abc9") { + abc9 = true; + continue; + } break; } extra_args(args, argidx, design); - if (arch != "xcup" && arch != "xcu" && arch != "xc7" && arch != "xc6s") - log_cmd_error("Invalid Xilinx -arch setting: %s\n", arch.c_str()); + if (family != "xcup" && family != "xcu" && family != "xc7" && family != "xc6s") + log_cmd_error("Invalid Xilinx -family setting: '%s'.\n", family.c_str()); + + if (widemux != 0 && widemux < 2) + log_cmd_error("-widemux value must be 0 or >= 2.\n"); if (!design->full_selection()) log_cmd_error("This command only operates on fully selected designs!\n"); + if (abc9 && retime) + log_cmd_error("-retime option not currently compatible with -abc9!\n"); + log_header(design, "Executing SYNTH_XILINX pass.\n"); log_push(); @@ -179,83 +236,181 @@ struct SynthXilinxPass : public ScriptPass { if (check_label("begin")) { if (vpr) - run("read_verilog -lib -D_EXPLICIT_CARRY +/xilinx/cells_sim.v"); + run("read_verilog -lib -icells -D _ABC -D_EXPLICIT_CARRY +/xilinx/cells_sim.v"); else - run("read_verilog -lib +/xilinx/cells_sim.v"); + run("read_verilog -lib -icells -D _ABC +/xilinx/cells_sim.v"); run("read_verilog -lib +/xilinx/cells_xtra.v"); - if (!nobram || help_mode) - run("read_verilog -lib +/xilinx/brams_bb.v", "(skip if '-nobram')"); + if (help_mode) { + run("read_verilog -lib +/xilinx/{family}_brams_bb.v"); + } else if (family == "xc6s") { + run("read_verilog -lib +/xilinx/xc6s_brams_bb.v"); + } else if (family == "xc7") { + run("read_verilog -lib +/xilinx/xc7_brams_bb.v"); + } run(stringf("hierarchy -check %s", top_opt.c_str())); } - if (check_label("flatten", "(with '-flatten' only)")) { - if (flatten || help_mode) { - run("proc"); - run("flatten"); + if (check_label("coarse")) { + run("proc"); + if (help_mode || flatten) + run("flatten", "(if -flatten)"); + run("opt_expr"); + run("opt_clean"); + run("check"); + run("opt"); + if (help_mode) + run("wreduce [-keepdc]", "(option for '-widemux')"); + else + run("wreduce" + std::string(widemux > 0 ? " -keepdc" : "")); + run("peepopt"); + run("opt_clean"); + + if (widemux > 0 || help_mode) + run("muxpack", " ('-widemux' only)"); + + // shregmap -tech xilinx can cope with $shiftx and $mux + // cells for identifying variable-length shift registers, + // so attempt to convert $pmux-es to the former + // Also: wide multiplexer inference benefits from this too + if (!(nosrl && widemux == 0) || help_mode) { + run("pmux2shiftx", "(skip if '-nosrl' and '-widemux=0')"); + run("clean", " (skip if '-nosrl' and '-widemux=0')"); } - } - if (check_label("coarse")) { - run("synth -run coarse"); + run("techmap -map +/cmp2lut.v -D LUT_WIDTH=6"); + run("alumacc"); + run("share"); + run("opt"); + run("fsm"); + run("opt -fast"); + run("memory -nomap"); + run("opt_clean"); } - 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("map_bram", "(skip if '-nobram')")) { + if (help_mode) { + run("memory_bram -rules +/xilinx/{family}_brams.txt"); + run("techmap -map +/xilinx/{family}_brams_map.v"); + } else if (!nobram) { + if (family == "xc6s") { + run("memory_bram -rules +/xilinx/xc6s_brams.txt"); + run("techmap -map +/xilinx/xc6s_brams_map.v"); + } else if (family == "xc7") { + run("memory_bram -rules +/xilinx/xc7_brams.txt"); + run("techmap -map +/xilinx/xc7_brams_map.v"); + } else { + log_warning("Block RAM inference not yet supported for family %s.\n", family.c_str()); + } } } - 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("map_lutram", "(skip if '-nolutram')")) { + if (!nolutram || help_mode) { + run("memory_bram -rules +/xilinx/lutrams.txt"); + run("techmap -map +/xilinx/lutrams_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 $pmux-es to the former - if (!nosrl || help_mode) - run("pmux2shiftx", "(skip if '-nosrl')"); - - run("opt -fast -full"); + if (check_label("map_ffram")) { + if (widemux > 0) + run("opt -fast -mux_bool -undriven -fine"); // Necessary to omit -mux_undef otherwise muxcover + // performs less efficiently + else + run("opt -fast -full"); run("memory_map"); + } + + if (check_label("fine")) { run("dffsr2dff"); run("dff2dffe"); + if (help_mode) { + run("simplemap t:$mux", " ('-widemux' only)"); + run("muxcover <internal options>, ('-widemux' only)"); + } + else if (widemux > 0) { + run("simplemap t:$mux"); + constexpr int cost_mux2 = 100; + std::string muxcover_args = stringf(" -nodecode -mux2=%d", cost_mux2); + switch (widemux) { + case 2: muxcover_args += stringf(" -mux4=%d -mux8=%d -mux16=%d", cost_mux2+1, cost_mux2+2, cost_mux2+3); break; + case 3: + case 4: muxcover_args += stringf(" -mux4=%d -mux8=%d -mux16=%d", cost_mux2*(widemux-1)-2, cost_mux2*(widemux-1)-1, cost_mux2*(widemux-1)); break; + case 5: + case 6: + case 7: + case 8: muxcover_args += stringf(" -mux8=%d -mux16=%d", cost_mux2*(widemux-1)-1, cost_mux2*(widemux-1)); break; + case 9: + case 10: + case 11: + case 12: + case 13: + case 14: + case 15: + default: muxcover_args += stringf(" -mux16=%d", cost_mux2*(widemux-1)-1); break; + } + run("muxcover " + muxcover_args); + } run("opt -full"); if (!nosrl || help_mode) { // shregmap operates on bit-level flops, not word-level, // so break those down here - run("simplemap t:$dff t:$dffe", "(skip if '-nosrl')"); + run("simplemap t:$dff t:$dffe", " (skip if '-nosrl')"); // shregmap with '-tech xilinx' infers variable length shift regs run("shregmap -tech xilinx -minlen 3", "(skip if '-nosrl')"); } - if (!vpr || help_mode) - run("techmap -map +/techmap.v -map +/xilinx/arith_map.v"); - else - run("techmap -map +/techmap.v +/xilinx/arith_map.v -D _EXPLICIT_CARRY"); - + std::string techmap_args = " -map +/techmap.v"; + if (help_mode) + techmap_args += " [-map +/xilinx/mux_map.v]"; + else if (widemux > 0) + techmap_args += stringf(" -D MIN_MUX_INPUTS=%d -map +/xilinx/mux_map.v", widemux); + if (help_mode) + techmap_args += " [-map +/xilinx/arith_map.v]"; + else if (!nocarry) { + techmap_args += " -map +/xilinx/arith_map.v"; + if (vpr) + techmap_args += " -D _EXPLICIT_CARRY"; + else if (abc9) + techmap_args += " -D _CLB_CARRY"; + } + run("techmap " + techmap_args); run("opt -fast"); } if (check_label("map_cells")) { - run("techmap -map +/techmap.v -map +/xilinx/cells_map.v"); + std::string techmap_args = "-map +/techmap.v -D _ABC -map +/xilinx/cells_map.v"; + if (widemux > 0) + techmap_args += stringf(" -D MIN_MUX_INPUTS=%d", widemux); + run("techmap " + techmap_args); run("clean"); } if (check_label("map_luts")) { + run("opt_expr -mux_undef"); + if (flatten_before_abc) + run("flatten"); if (help_mode) - run("abc -luts 2:2,3,6:5,10,20 [-dff]"); - else - run("abc -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : "")); + run("abc -luts 2:2,3,6:5[,10,20] [-dff]", "(option for 'nowidelut', option for '-retime')"); + else if (abc9) { + if (family != "xc7") + log_warning("'synth_xilinx -abc9' currently supports '-family xc7' only.\n"); + if (nowidelut) + run("abc9 -lut +/xilinx/abc_xc7_nowide.lut -box +/xilinx/abc_xc7.box -W " + std::to_string(XC7_WIRE_DELAY)); + else + run("abc9 -lut +/xilinx/abc_xc7.lut -box +/xilinx/abc_xc7.box -W " + std::to_string(XC7_WIRE_DELAY)); + } + 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) diff --git a/techlibs/xilinx/xc6s_brams.txt b/techlibs/xilinx/xc6s_brams.txt new file mode 100644 index 000000000..17cd8e355 --- /dev/null +++ b/techlibs/xilinx/xc6s_brams.txt @@ -0,0 +1,84 @@ + +bram $__XILINX_RAMB8BWER_SDP + init 1 + abits 8 + dbits 36 + groups 2 + ports 1 1 + wrmode 0 1 + enable 1 4 + transp 0 0 + clocks 2 3 + clkpol 2 3 +endbram + +bram $__XILINX_RAMB16BWER_TDP + init 1 + abits 9 @a9d36 + dbits 36 @a9d36 + abits 10 @a10d18 + dbits 18 @a10d18 + abits 11 @a11d9 + dbits 9 @a11d9 + abits 12 @a12d4 + dbits 4 @a12d4 + abits 13 @a13d2 + dbits 2 @a13d2 + abits 14 @a14d1 + dbits 1 @a14d1 + groups 2 + ports 1 1 + wrmode 0 1 + enable 1 4 @a9d36 + enable 1 2 @a10d18 + enable 1 1 @a11d9 @a12d4 @a13d2 @a14d1 + transp 0 0 + clocks 2 3 + clkpol 2 3 +endbram + +bram $__XILINX_RAMB8BWER_TDP + init 1 + abits 9 @a9d18 + dbits 18 @a9d18 + abits 10 @a10d9 + dbits 9 @a10d9 + abits 11 @a11d4 + dbits 4 @a11d4 + abits 12 @a12d2 + dbits 2 @a12d2 + abits 13 @a13d1 + dbits 1 @a13d1 + groups 2 + ports 1 1 + wrmode 0 1 + enable 1 2 @a9d18 + enable 1 1 @a10d9 @a11d4 @a12d2 @a13d1 + transp 0 0 + clocks 2 3 + clkpol 2 3 +endbram + +match $__XILINX_RAMB8BWER_SDP + min bits 4096 + min efficiency 5 + shuffle_enable B + make_transp + or_next_if_better +endmatch + +match $__XILINX_RAMB16BWER_TDP + min bits 4096 + min efficiency 5 + shuffle_enable B + make_transp + or_next_if_better +endmatch + +match $__XILINX_RAMB8BWER_TDP + min bits 4096 + min efficiency 5 + shuffle_enable B + make_transp +endmatch + diff --git a/techlibs/xilinx/xc6s_brams_bb.v b/techlibs/xilinx/xc6s_brams_bb.v new file mode 100644 index 000000000..eb1a29579 --- /dev/null +++ b/techlibs/xilinx/xc6s_brams_bb.v @@ -0,0 +1,211 @@ +module RAMB8BWER ( + input CLKAWRCLK, + input CLKBRDCLK, + input ENAWREN, + input ENBRDEN, + input REGCEA, + input REGCEBREGCE, + input RSTA, + input RSTBRST, + + input [12:0] ADDRAWRADDR, + input [12:0] ADDRBRDADDR, + input [15:0] DIADI, + input [15:0] DIBDI, + input [1:0] DIPADIP, + input [1:0] DIPBDIP, + input [1:0] WEAWEL, + input [1:0] WEBWEU, + + output [15:0] DOADO, + output [15:0] DOBDO, + output [1:0] DOPADOP, + output [1:0] DOPBDOP +); + parameter INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + parameter INIT_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_14 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_15 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_16 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_17 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_18 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_19 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1A = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1B = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1C = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1D = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1E = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1F = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + parameter RAM_MODE = "TDP"; + parameter integer DOA_REG = 0; + parameter integer DOB_REG = 0; + + parameter integer DATA_WIDTH_A = 0; + parameter integer DATA_WIDTH_B = 0; + + parameter WRITE_MODE_A = "WRITE_FIRST"; + parameter WRITE_MODE_B = "WRITE_FIRST"; + + parameter EN_RSTRAM_A = "TRUE"; + parameter EN_RSTRAM_B = "TRUE"; + + parameter INIT_A = 18'h000000000; + parameter INIT_B = 18'h000000000; + parameter SRVAL_A = 18'h000000000; + parameter SRVAL_B = 18'h000000000; + + parameter RST_PRIORITY_A = "CE"; + parameter RST_PRIORITY_B = "CE"; + + parameter RSTTYPE = "SYNC"; + + parameter SIM_COLLISION_CHECK = "ALL"; +endmodule + +module RAMB16BWER ( + input CLKA, + input CLKB, + input ENA, + input ENB, + input REGCEA, + input REGCEB, + input RSTA, + input RSTB, + + input [13:0] ADDRA, + input [13:0] ADDRB, + input [31:0] DIA, + input [31:0] DIB, + input [3:0] DIPA, + input [3:0] DIPB, + input [3:0] WEA, + input [3:0] WEB, + + output [31:0] DOA, + output [31:0] DOB, + output [3:0] DOPA, + output [3:0] DOPB +); + parameter INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INITP_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + parameter INIT_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_08 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_09 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0A = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0B = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0C = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0D = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0E = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_0F = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_14 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_15 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_16 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_17 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_18 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_19 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1A = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1B = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1C = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1D = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1E = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_1F = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_20 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_21 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_22 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_23 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_24 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_25 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_26 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_27 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_28 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_29 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_2A = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_2B = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_2C = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_2D = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_2E = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_2F = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_30 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_31 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_32 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_33 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_34 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_35 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_36 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_37 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_38 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_39 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_3A = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_3B = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_3C = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_3D = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_3E = 256'h0000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_3F = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + parameter integer DOA_REG = 0; + parameter integer DOB_REG = 0; + + parameter integer DATA_WIDTH_A = 0; + parameter integer DATA_WIDTH_B = 0; + + parameter WRITE_MODE_A = "WRITE_FIRST"; + parameter WRITE_MODE_B = "WRITE_FIRST"; + + parameter EN_RSTRAM_A = "TRUE"; + parameter EN_RSTRAM_B = "TRUE"; + + parameter INIT_A = 36'h000000000; + parameter INIT_B = 36'h000000000; + parameter SRVAL_A = 36'h000000000; + parameter SRVAL_B = 36'h000000000; + + parameter RST_PRIORITY_A = "CE"; + parameter RST_PRIORITY_B = "CE"; + + parameter RSTTYPE = "SYNC"; + + parameter SIM_COLLISION_CHECK = "ALL"; +endmodule + diff --git a/techlibs/xilinx/xc6s_brams_map.v b/techlibs/xilinx/xc6s_brams_map.v new file mode 100644 index 000000000..16fd15e74 --- /dev/null +++ b/techlibs/xilinx/xc6s_brams_map.v @@ -0,0 +1,255 @@ +module \$__XILINX_RAMB8BWER_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN); + parameter CLKPOL2 = 1; + parameter CLKPOL3 = 1; + parameter [9215:0] INIT = 9216'bx; + + input CLK2; + input CLK3; + + input [7:0] A1ADDR; + output [35:0] A1DATA; + input A1EN; + + input [7:0] B1ADDR; + input [35:0] B1DATA; + input [3:0] B1EN; + + wire [12:0] A1ADDR_13 = {A1ADDR, 5'b0}; + wire [12:0] B1ADDR_13 = {B1ADDR, 5'b0}; + + wire [3:0] DIP, DOP; + wire [31:0] DI, DO; + + assign A1DATA = { DOP[3], DO[31:24], DOP[2], DO[23:16], DOP[1], DO[15: 8], DOP[0], DO[ 7: 0] }; + assign { DIP[3], DI[31:24], DIP[2], DI[23:16], DIP[1], DI[15: 8], DIP[0], DI[ 7: 0] } = B1DATA; + + RAMB8BWER #( + .RAM_MODE("SDP"), + .DATA_WIDTH_A(36), + .DATA_WIDTH_B(36), + .WRITE_MODE_A("READ_FIRST"), + .WRITE_MODE_B("READ_FIRST"), + `include "brams_init_9.vh" + ) _TECHMAP_REPLACE_ ( + .DOBDO(DO[31:16]), + .DOADO(DO[15:0]), + .DOPBDOP(DOP[3:2]), + .DOPADOP(DOP[1:0]), + .DIBDI(DI[31:16]), + .DIADI(DI[15:0]), + .DIPBDIP(DIP[3:2]), + .DIPADIP(DIP[1:0]), + .WEBWEU(B1EN[3:2]), + .WEAWEL(B1EN[1:0]), + + .ADDRAWRADDR(B1ADDR_13), + .CLKAWRCLK(CLK3 ^ !CLKPOL3), + .ENAWREN(|1), + .REGCEA(|0), + .RSTA(|0), + + .ADDRBRDADDR(A1ADDR_13), + .CLKBRDCLK(CLK2 ^ !CLKPOL2), + .ENBRDEN(A1EN), + .REGCEBREGCE(|1), + .RSTBRST(|0) + ); +endmodule + +// ------------------------------------------------------------------------ + +module \$__XILINX_RAMB16BWER_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN); + parameter CFG_ABITS = 9; + parameter CFG_DBITS = 36; + parameter CFG_ENABLE_B = 4; + + parameter CLKPOL2 = 1; + parameter CLKPOL3 = 1; + parameter [18431:0] INIT = 18432'bx; + + input CLK2; + input CLK3; + + input [CFG_ABITS-1:0] A1ADDR; + output [CFG_DBITS-1:0] A1DATA; + input A1EN; + + input [CFG_ABITS-1:0] B1ADDR; + input [CFG_DBITS-1:0] B1DATA; + input [CFG_ENABLE_B-1:0] B1EN; + + wire [13:0] A1ADDR_14 = A1ADDR << (14 - CFG_ABITS); + wire [13:0] B1ADDR_14 = B1ADDR << (14 - CFG_ABITS); + wire [3:0] B1EN_4 = {4{B1EN}}; + + wire [3:0] DIP, DOP; + wire [31:0] DI, DO; + + wire [31:0] DOB; + wire [3:0] DOPB; + + assign A1DATA = { DOP[3], DO[31:24], DOP[2], DO[23:16], DOP[1], DO[15: 8], DOP[0], DO[ 7: 0] }; + assign { DIP[3], DI[31:24], DIP[2], DI[23:16], DIP[1], DI[15: 8], DIP[0], DI[ 7: 0] } = B1DATA; + + generate if (CFG_DBITS > 8) begin + RAMB16BWER #( + .DATA_WIDTH_A(CFG_DBITS), + .DATA_WIDTH_B(CFG_DBITS), + .WRITE_MODE_A("READ_FIRST"), + .WRITE_MODE_B("READ_FIRST"), + `include "brams_init_18.vh" + ) _TECHMAP_REPLACE_ ( + .DIA(32'd0), + .DIPA(4'd0), + .DOA(DO[31:0]), + .DOPA(DOP[3:0]), + .ADDRA(A1ADDR_14), + .CLKA(CLK2 ^ !CLKPOL2), + .ENA(A1EN), + .REGCEA(|1), + .RSTA(|0), + .WEA(4'b0), + + .DIB(DI), + .DIPB(DIP), + .DOB(DOB), + .DOPB(DOPB), + .ADDRB(B1ADDR_14), + .CLKB(CLK3 ^ !CLKPOL3), + .ENB(|1), + .REGCEB(|0), + .RSTB(|0), + .WEB(B1EN_4) + ); + end else begin + RAMB16BWER #( + .DATA_WIDTH_A(CFG_DBITS), + .DATA_WIDTH_B(CFG_DBITS), + .WRITE_MODE_A("READ_FIRST"), + .WRITE_MODE_B("READ_FIRST"), + `include "brams_init_16.vh" + ) _TECHMAP_REPLACE_ ( + .DIA(32'd0), + .DIPA(4'd0), + .DOA(DO[31:0]), + .DOPA(DOP[3:0]), + .ADDRA(A1ADDR_14), + .CLKA(CLK2 ^ !CLKPOL2), + .ENA(A1EN), + .REGCEA(|1), + .RSTA(|0), + .WEA(4'b0), + + .DIB(DI), + .DIPB(DIP), + .DOB(DOB), + .DOPB(DOPB), + .ADDRB(B1ADDR_14), + .CLKB(CLK3 ^ !CLKPOL3), + .ENB(|1), + .REGCEB(|0), + .RSTB(|0), + .WEB(B1EN_4) + ); + end endgenerate +endmodule + +// ------------------------------------------------------------------------ + +module \$__XILINX_RAMB8BWER_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN); + parameter CFG_ABITS = 9; + parameter CFG_DBITS = 18; + parameter CFG_ENABLE_B = 2; + + parameter CLKPOL2 = 1; + parameter CLKPOL3 = 1; + parameter [9215:0] INIT = 9216'bx; + + input CLK2; + input CLK3; + + input [CFG_ABITS-1:0] A1ADDR; + output [CFG_DBITS-1:0] A1DATA; + input A1EN; + + input [CFG_ABITS-1:0] B1ADDR; + input [CFG_DBITS-1:0] B1DATA; + input [CFG_ENABLE_B-1:0] B1EN; + + wire [12:0] A1ADDR_13 = A1ADDR << (13 - CFG_ABITS); + wire [12:0] B1ADDR_13 = B1ADDR << (13 - CFG_ABITS); + wire [1:0] B1EN_2 = {2{B1EN}}; + + wire [1:0] DIP, DOP; + wire [15:0] DI, DO; + + wire [15:0] DOBDO; + wire [1:0] DOPBDOP; + + assign A1DATA = { DOP[1], DO[15: 8], DOP[0], DO[ 7: 0] }; + assign { DIP[1], DI[15: 8], DIP[0], DI[ 7: 0] } = B1DATA; + + generate if (CFG_DBITS > 8) begin + RAMB8BWER #( + .RAM_MODE("TDP"), + .DATA_WIDTH_A(CFG_DBITS), + .DATA_WIDTH_B(CFG_DBITS), + .WRITE_MODE_A("READ_FIRST"), + .WRITE_MODE_B("READ_FIRST"), + `include "brams_init_9.vh" + ) _TECHMAP_REPLACE_ ( + .DIADI(16'b0), + .DIPADIP(2'b0), + .DOADO(DO), + .DOPADOP(DOP), + .ADDRAWRADDR(A1ADDR_13), + .CLKAWRCLK(CLK2 ^ !CLKPOL2), + .ENAWREN(A1EN), + .REGCEA(|1), + .RSTA(|0), + .WEAWEL(2'b0), + + .DIBDI(DI), + .DIPBDIP(DIP), + .DOBDO(DOBDO), + .DOPBDOP(DOPBDOP), + .ADDRBRDADDR(B1ADDR_13), + .CLKBRDCLK(CLK3 ^ !CLKPOL3), + .ENBRDEN(|1), + .REGCEBREGCE(|0), + .RSTBRST(|0), + .WEBWEU(B1EN_2) + ); + end else begin + RAMB8BWER #( + .RAM_MODE("TDP"), + .DATA_WIDTH_A(CFG_DBITS), + .DATA_WIDTH_B(CFG_DBITS), + .WRITE_MODE_A("READ_FIRST"), + .WRITE_MODE_B("READ_FIRST"), + `include "brams_init_8.vh" + ) _TECHMAP_REPLACE_ ( + .DIADI(16'b0), + .DIPADIP(2'b0), + .DOADO(DO), + .DOPADOP(DOP), + .ADDRAWRADDR(A1ADDR_13), + .CLKAWRCLK(CLK2 ^ !CLKPOL2), + .ENAWREN(A1EN), + .REGCEA(|1), + .RSTA(|0), + .WEAWEL(2'b0), + + .DIBDI(DI), + .DIPBDIP(DIP), + .DOBDO(DOBDO), + .DOPBDOP(DOPBDOP), + .ADDRBRDADDR(B1ADDR_13), + .CLKBRDCLK(CLK3 ^ !CLKPOL3), + .ENBRDEN(|1), + .REGCEBREGCE(|0), + .RSTBRST(|0), + .WEBWEU(B1EN_2) + ); + end endgenerate +endmodule diff --git a/techlibs/xilinx/brams.txt b/techlibs/xilinx/xc7_brams.txt index f1161114e..f1161114e 100644 --- a/techlibs/xilinx/brams.txt +++ b/techlibs/xilinx/xc7_brams.txt diff --git a/techlibs/xilinx/brams_bb.v b/techlibs/xilinx/xc7_brams_bb.v index a682ba4a7..a682ba4a7 100644 --- a/techlibs/xilinx/brams_bb.v +++ b/techlibs/xilinx/xc7_brams_bb.v diff --git a/techlibs/xilinx/brams_map.v b/techlibs/xilinx/xc7_brams_map.v index 7ea49158d..7ea49158d 100644 --- a/techlibs/xilinx/brams_map.v +++ b/techlibs/xilinx/xc7_brams_map.v |