Adapted for new ECDSA architecture.HEADmaster

2 files changed, 0 insertions, 395 deletions

diff --git a/rtl/multiword/mw_comparator.v b/rtl/multiword/mw_comparator.v
deleted file mode 100644
index 756ee83..0000000
--- a/rtl/multiword/mw_comparator.v
+++ /dev/null
@@ -1,220 +0,0 @@
-//------------------------------------------------------------------------------
-//
-// mw_comparator.v
-// -----------------------------------------------------------------------------
-// Multi-word comparator.
-//
-// Authors: Pavel Shatov
-//
-// Copyright (c) 2015-2016, NORDUnet A/S
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-//
-// - Redistributions of source code must retain the above copyright notice,
-//   this list of conditions and the following disclaimer.
-//
-// - Redistributions in binary form must reproduce the above copyright notice,
-//   this list of conditions and the following disclaimer in the documentation
-//   and/or other materials provided with the distribution.
-//
-// - Neither the name of the NORDUnet nor the names of its contributors may be
-//   used to endorse or promote products derived from this software without
-//   specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-// POSSIBILITY OF SUCH DAMAGE.
-//
-//------------------------------------------------------------------------------
-
-module mw_comparator
-  (
-   clk, rst_n,
-   ena, rdy,
-   xy_addr, x_din, y_din,
-   cmp_l, cmp_e, cmp_g
-   );
-
-
-   //
-   // Parameters
-   //
-   parameter	WORD_COUNTER_WIDTH	= 3;
-   parameter	OPERAND_NUM_WORDS		= 8;
-
-
-   //
-   // Handy Numbers
-   //
-   localparam	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_ZERO	= 0;
-   localparam	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_LAST	= OPERAND_NUM_WORDS - 1;
-
-
-   //
-   // Handy Functions
-   //
-   function	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_PREV_OR_LAST;
-      input	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_CURRENT;
-      begin
-	 WORD_INDEX_PREV_OR_LAST = (WORD_INDEX_CURRENT > WORD_INDEX_ZERO) ?
-				   WORD_INDEX_CURRENT - 1'b1 : WORD_INDEX_LAST;
-      end
-   endfunction
-
-
-   //
-   // Ports
-   //
-   input		wire											clk;			// system clock
-   input		wire											rst_n;		// active-low async reset
-
-   input		wire											ena;			// enable input
-   output	wire 												rdy;			// ready output
-
-   output	wire [WORD_COUNTER_WIDTH-1:0] 									xy_addr;		// address of current X and Y words
-   input		wire [                32-1:0] 								x_din;		// current X word
-   input		wire [                32-1:0] 								y_din;		// current Y word
-
-   output	wire 												cmp_l;		// X < Y ?
-   output	wire 												cmp_e;		// X = Y ?
-   output	wire 												cmp_g;		// X > Y ?
-
-
-   //
-   // Word Indices
-   //
-   reg [WORD_COUNTER_WIDTH-1:0] 										index_xy;
-
-   reg 														reg_cmp_l;
-   reg 														reg_cmp_e;
-   reg 														reg_cmp_g;
-
-
-   //
-   // Output Mapping
-   //
-   assign xy_addr	= index_xy;
-
-   assign cmp_l = reg_cmp_l;
-   assign cmp_e = reg_cmp_e;
-   assign cmp_g = reg_cmp_g;
-
-
-   //
-   // FSM
-   //
-   localparam FSM_SHREG_WIDTH = 1 * OPERAND_NUM_WORDS + 3;
-
-   reg [FSM_SHREG_WIDTH-1:0] 											fsm_shreg;
-
-   assign rdy = fsm_shreg[0];
-
-   wire [OPERAND_NUM_WORDS-1:0] 										fsm_shreg_dec_index_xy	= fsm_shreg[FSM_SHREG_WIDTH - (0 * OPERAND_NUM_WORDS + 1) : FSM_SHREG_WIDTH - (1 * OPERAND_NUM_WORDS + 0)];
-   wire [OPERAND_NUM_WORDS-1:0] 										fsm_shreg_calc_leg			= fsm_shreg[FSM_SHREG_WIDTH - (0 * OPERAND_NUM_WORDS + 3) : FSM_SHREG_WIDTH - (1 * OPERAND_NUM_WORDS + 2)];
-   wire 													fsm_shreg_calc_leg_last	= fsm_shreg[FSM_SHREG_WIDTH - (1 * OPERAND_NUM_WORDS + 2)];
-
-   wire 													dec_index_xy		= |fsm_shreg_dec_index_xy;
-   wire 													calc_leg			= |fsm_shreg_calc_leg;
-   wire 													calc_leg_last	=  fsm_shreg_calc_leg_last;
-
-
-   always @(posedge clk or negedge rst_n)
-     //
-     if (rst_n == 1'b0)
-       //
-       fsm_shreg <= {{FSM_SHREG_WIDTH-1{1'b0}}, 1'b1};
-   //
-     else begin
-	//
-	if (rdy)	fsm_shreg <= {ena, {FSM_SHREG_WIDTH-2{1'b0}}, ~ena};
-	//
-	else		fsm_shreg <= {1'b0, fsm_shreg[FSM_SHREG_WIDTH-1:1]};
-	//
-     end
-
-
-   //
-   // Word Index Increment Logic
-   //
-   always @(posedge clk)
-     //
-     if (rdy)						index_xy <= WORD_INDEX_LAST;
-     else if (dec_index_xy)	index_xy <= WORD_INDEX_PREV_OR_LAST(index_xy);
-
-
-   //
-   // 32-bit Subtractor
-   //
-   wire	[31: 0]	sub32_d_out;
-   wire 	sub32_b_in;
-   wire 	sub32_b_out;
-
-   subtractor32_wrapper subtractor32_inst
-     (
-      .clk		(clk),
-
-      .a			(x_din),
-      .b			(y_din),
-
-      .d			(sub32_d_out),
-
-      .b_in		(sub32_b_in),
-      .b_out	(sub32_b_out)
-      );
-
-
-   //
-   // Borrow Masking Logic
-   //
-   reg 		sub32_b_mask;
-
-   always @(posedge clk)
-     //
-     sub32_b_mask <= (index_xy  == WORD_INDEX_LAST) ? 1'b1 : 1'b0;
-
-   assign sub32_b_in = sub32_b_out & ~sub32_b_mask;
-
-   //
-   // Output Logic
-   //
-   wire 	cmp_unresolved = !(cmp_l || cmp_g);
-
-   wire 	cmp_borrow_is_set				= (sub32_b_out ==  1'b1) ? 1'b1 : 1'b0;
-   wire 	cmp_difference_is_nonzero	= (sub32_d_out != 32'd0) ? 1'b1 : 1'b0;
-
-   always @(posedge clk)
-     //
-     if (rdy) begin
-	//
-	if (ena) begin
-	   //
-	   reg_cmp_l	<= 1'b0;
-	   reg_cmp_e	<= 1'b0;
-	   reg_cmp_g	<= 1'b0;
-	   //
-	end
-	//
-     end else if (cmp_unresolved && calc_leg) begin
-	//
-	if ( cmp_borrow_is_set)																	reg_cmp_l <= 1'b1;
-	if (!cmp_borrow_is_set &&  cmp_difference_is_nonzero)							reg_cmp_g <= 1'b1;
-	if (!cmp_borrow_is_set && !cmp_difference_is_nonzero && calc_leg_last)	reg_cmp_e <= 1'b1;
-	//
-     end
-
-
-endmodule
-
-
-//------------------------------------------------------------------------------
-// End-of-File
-//------------------------------------------------------------------------------
diff --git a/rtl/multiword/mw_mover.v b/rtl/multiword/mw_mover.v
deleted file mode 100644
index d6e025f..0000000
--- a/rtl/multiword/mw_mover.v
+++ /dev/null
@@ -1,175 +0,0 @@
-//------------------------------------------------------------------------------
-//
-// mw_mover.v
-// -----------------------------------------------------------------------------
-// Multi-word data mover.
-//
-// Authors: Pavel Shatov
-//
-// Copyright (c) 2015-2016, NORDUnet A/S
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-//
-// - Redistributions of source code must retain the above copyright notice,
-//   this list of conditions and the following disclaimer.
-//
-// - Redistributions in binary form must reproduce the above copyright notice,
-//   this list of conditions and the following disclaimer in the documentation
-//   and/or other materials provided with the distribution.
-//
-// - Neither the name of the NORDUnet nor the names of its contributors may be
-//   used to endorse or promote products derived from this software without
-//   specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-// POSSIBILITY OF SUCH DAMAGE.
-//
-//------------------------------------------------------------------------------
-
-module mw_mover
-  (
-   clk, rst_n,
-   ena, rdy,
-   x_addr, y_addr, y_wren,
-   x_din, y_dout
-   );
-
-
-   //
-   // Parameters
-   //
-   parameter	WORD_COUNTER_WIDTH	= 3;
-   parameter	OPERAND_NUM_WORDS		= 8;
-
-
-   //
-   // Handy Numbers
-   //
-   localparam	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_ZERO	= 0;
-   localparam	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_LAST	= OPERAND_NUM_WORDS - 1;
-
-
-   //
-   // Handy Functions
-   //
-   function	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_NEXT_OR_ZERO;
-      input	[WORD_COUNTER_WIDTH-1:0]	WORD_INDEX_CURRENT;
-      begin
-	 WORD_INDEX_NEXT_OR_ZERO = (WORD_INDEX_CURRENT < WORD_INDEX_LAST) ?
-				   WORD_INDEX_CURRENT + 1'b1 : WORD_INDEX_ZERO;
-      end
-   endfunction
-
-
-   //
-   // Ports
-   //
-   input		wire											clk;			// system clock
-   input		wire											rst_n;		// active-low async reset
-
-   input		wire											ena;			// enable input
-   output	wire 												rdy;			// ready output
-
-   output	wire [WORD_COUNTER_WIDTH-1:0] 									x_addr;		// address of current X word
-   output	wire [WORD_COUNTER_WIDTH-1:0] 									y_addr;		// address of current Y word
-   output	wire 												y_wren;		// store current Y word
-
-   input		wire [                32-1:0] 								x_din;		// current X word
-   output	wire [                32-1:0] 									y_dout;		// current Y word
-
-
-   //
-   // Word Indices
-   //
-   reg [WORD_COUNTER_WIDTH-1:0] 										index_x;
-   reg [WORD_COUNTER_WIDTH-1:0] 										index_y;
-
-
-   //
-   // Output Mapping
-   //
-   assign x_addr	= index_x;
-   assign y_addr	= index_y;
-
-
-   //
-   // FSM
-   //
-   localparam FSM_SHREG_WIDTH = 1 * OPERAND_NUM_WORDS + 2;
-
-   reg [FSM_SHREG_WIDTH-1:0] 											fsm_shreg;
-
-   assign rdy = fsm_shreg[0];
-
-   wire [OPERAND_NUM_WORDS-1:0] 										fsm_shreg_inc_index_x	= fsm_shreg[FSM_SHREG_WIDTH - (0 * OPERAND_NUM_WORDS + 1) : FSM_SHREG_WIDTH - (1 * OPERAND_NUM_WORDS + 0)];
-   wire [OPERAND_NUM_WORDS-1:0] 										fsm_shreg_inc_index_y	= fsm_shreg[FSM_SHREG_WIDTH - (0 * OPERAND_NUM_WORDS + 2) : FSM_SHREG_WIDTH - (1 * OPERAND_NUM_WORDS + 1)];
-
-   wire 													inc_index_x	= |fsm_shreg_inc_index_x;
-   wire 													inc_index_y	= |fsm_shreg_inc_index_y;
-   wire 													store_word_y	= |fsm_shreg_inc_index_x;
-
-
-   always @(posedge clk or negedge rst_n)
-     //
-     if (rst_n == 1'b0)
-       //
-       fsm_shreg <= {{FSM_SHREG_WIDTH-1{1'b0}}, 1'b1};
-   //
-     else begin
-	//
-	if (rdy)	fsm_shreg <= {ena, {FSM_SHREG_WIDTH-2{1'b0}}, ~ena};
-	//
-	else		fsm_shreg <= {1'b0, fsm_shreg[FSM_SHREG_WIDTH-1:1]};
-	//
-     end
-
-
-   //
-   // Word Index Increment Logic
-   //
-   always @(posedge clk)
-     //
-     if (rdy) begin
-	index_x <= WORD_INDEX_ZERO;
-	index_y <= WORD_INDEX_ZERO;
-     end else begin
-	if (inc_index_x)	index_x <= WORD_INDEX_NEXT_OR_ZERO(index_x);
-	if (inc_index_y)	index_y <= WORD_INDEX_NEXT_OR_ZERO(index_y);
-     end
-
-
-   //
-   // Write Enable Logic
-   //
-   reg	y_wren_reg;
-
-   assign y_wren = y_wren_reg;
-
-   always @(posedge clk)
-     //
-     if (rdy)		y_wren_reg	<= 1'b0;
-     else			y_wren_reg	<= store_word_y;
-
-
-   //
-   // Output Logic
-   //
-   assign y_dout = x_din;
-
-
-endmodule
-
-
-//------------------------------------------------------------------------------
-// End-of-File
-//------------------------------------------------------------------------------