diff options
Diffstat (limited to 'rtl')
| -rw-r--r-- | rtl/modexpng_core_top.v | 28 | ||||
| -rw-r--r-- | rtl/modexpng_dsp_array_block.v | 76 | ||||
| -rw-r--r-- | rtl/modexpng_general_worker.v | 20 | ||||
| -rw-r--r-- | rtl/modexpng_io_block.v | 9 | ||||
| -rw-r--r-- | rtl/modexpng_io_manager.v | 24 | ||||
| -rw-r--r-- | rtl/modexpng_mmm_dual.v | 496 | ||||
| -rw-r--r-- | rtl/modexpng_mmm_dual_fsm.vh (renamed from rtl/modexpng_mmm_fsm.vh) | 64 | ||||
| -rw-r--r-- | rtl/modexpng_parameters.vh | 2 | ||||
| -rw-r--r-- | rtl/modexpng_recombinator_block.v | 51 | ||||
| -rw-r--r-- | rtl/modexpng_reductor.v | 29 | ||||
| -rw-r--r-- | rtl/modexpng_storage_block.v | 8 | ||||
| -rw-r--r-- | rtl/modexpng_storage_manager.v | 12 | ||||
| -rw-r--r-- | rtl/modexpng_uop_engine.v | 18 | ||||
| -rw-r--r-- | rtl/modexpng_wrapper.v | 393 |
14 files changed, 774 insertions, 456 deletions
diff --git a/rtl/modexpng_core_top.v b/rtl/modexpng_core_top.v index a991c61..18c32bb 100644 --- a/rtl/modexpng_core_top.v +++ b/rtl/modexpng_core_top.v @@ -1,7 +1,7 @@ module modexpng_core_top ( clk, clk_bus, - rst, + rst_n, next, valid, crt_mode, word_index_last_n, @@ -28,7 +28,7 @@ module modexpng_core_top input clk; input clk_bus; - input rst; + input rst_n; input next; output valid; @@ -118,7 +118,7 @@ module modexpng_core_top modexpng_uop_engine uop_engine ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (next), .rdy (valid), @@ -419,7 +419,7 @@ module modexpng_core_top modexpng_storage_block storage_block_x ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .wr_wide_xy_ena (wr_wide_xy_ena_x), .wr_wide_xy_bank (wr_wide_xy_bank_x), @@ -466,7 +466,7 @@ module modexpng_core_top modexpng_storage_block storage_block_y ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .wr_wide_xy_ena (wr_wide_xy_ena_y), .wr_wide_xy_bank (wr_wide_xy_bank_y), @@ -518,7 +518,7 @@ module modexpng_core_top modexpng_storage_manager storage_manager_x ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .wr_wide_xy_ena (wr_wide_xy_ena_x), .wr_wide_xy_bank (wr_wide_xy_bank_x), @@ -584,7 +584,7 @@ module modexpng_core_top modexpng_storage_manager storage_manager_y ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .wr_wide_xy_ena (wr_wide_xy_ena_y), .wr_wide_xy_bank (wr_wide_xy_bank_y), @@ -656,7 +656,7 @@ module modexpng_core_top .clk (clk), .clk_bus (clk_bus), - .rst (rst), + .rst_n (rst_n), .bus_cs (bus_cs), .bus_we (bus_we), @@ -685,7 +685,7 @@ module modexpng_core_top modexpng_io_manager io_manager ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (io_mgr_ena), .rdy (io_mgr_rdy), @@ -755,7 +755,7 @@ module modexpng_core_top modexpng_mmm_dual mmm_x ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (mmm_ena_x), .rdy (mmm_rdy_x), @@ -812,7 +812,7 @@ module modexpng_core_top modexpng_mmm_dual mmm_y ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (mmm_ena_y), .rdy (mmm_rdy_y), @@ -872,7 +872,7 @@ module modexpng_core_top modexpng_reductor reductor_x ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (rdct_ena_x), .rdy (rdct_rdy_x), @@ -909,7 +909,7 @@ module modexpng_core_top modexpng_reductor reductor_y ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (rdct_ena_y), .rdy (rdct_rdy_y), @@ -950,7 +950,7 @@ module modexpng_core_top modexpng_general_worker general_worker ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (wrk_ena), .rdy (wrk_rdy), diff --git a/rtl/modexpng_dsp_array_block.v b/rtl/modexpng_dsp_array_block.v index 6b4ad3c..1444aa7 100644 --- a/rtl/modexpng_dsp_array_block.v +++ b/rtl/modexpng_dsp_array_block.v @@ -38,81 +38,7 @@ module modexpng_dsp_array_block ce_a1 <= ce_a0; ce_a2 <= ce_a1; ce_b1 <= ce_b0; - end - - /// - wire [46:0] p_debug_direct; - wire [17:0] casc_a_debug_direct; - wire [15:0] casc_b_debug_direct; - - wire [46:0] p_debug_cascade; - - wire [46:0] p_ref_direct = p[ 0 +: MAC_W]; - wire [46:0] p_ref_cascade = p[MAC_W +: MAC_W]; - - modexpng_dsp_slice_wrapper_xilinx # - ( - .AB_INPUT("DIRECT"), - .B_REG(2) - ) - dsp_debug_direct - ( - .clk (clk), - - .ce_a1 (ce_a0), - .ce_b1 (ce_b0), - .ce_a2 (ce_a1), - .ce_b2 (ce_b1), - .ce_m (ce_m), - .ce_p (ce_p), - .ce_mode (ce_mode), - - .a (a[0 +: 18]), - .b (b), - .p (p_debug_direct), - - .inmode ({DSP48E1_INMODE_W{1'b0}}), - .opmode ({1'b0, mode_z[0], 1'b0, 2'b01, 2'b01}), - .alumode ({DSP48E1_ALUMODE_W{1'b0}}), - - .casc_a_in (WORD_EXT_ZERO), - .casc_b_in (WORD_ZERO), - - .casc_a_out (casc_a_debug_direct), - .casc_b_out (casc_b_debug_direct) - ); - - modexpng_dsp_slice_wrapper_xilinx # - ( - .AB_INPUT("CASCADE"), - .B_REG(1) - ) - dsp_debug_cascade - ( - .clk (clk), - - .ce_a1 (ce_a1), - .ce_b1 (1'b0), - .ce_a2 (ce_a2), - .ce_b2 (ce_b1), - .ce_m (ce_m), - .ce_p (ce_p), - .ce_mode (ce_mode), - - .a (a[0 +: 18]), - .b (b), - .p (p_debug_cascade), - - .inmode ({DSP48E1_INMODE_W{1'b0}}), - .opmode ({1'b0, mode_z[1], 1'b0, 2'b01, 2'b01}), - .alumode ({DSP48E1_ALUMODE_W{1'b0}}), - - .casc_a_in (casc_a_debug_direct), - .casc_b_in (casc_b_debug_direct), - - .casc_a_out (), - .casc_b_out () - ); + end genvar z; generate for (z=0; z<NUM_MULTS_HALF; z=z+1) diff --git a/rtl/modexpng_general_worker.v b/rtl/modexpng_general_worker.v index 4202066..ba8342f 100644 --- a/rtl/modexpng_general_worker.v +++ b/rtl/modexpng_general_worker.v @@ -1,6 +1,6 @@ module modexpng_general_worker ( - clk, rst, + clk, rst_n, ena, rdy, sel_narrow_in, sel_narrow_out, sel_wide_in, sel_wide_out, @@ -28,7 +28,7 @@ module modexpng_general_worker // Ports // input clk; - input rst; + input rst_n; input ena; output rdy; @@ -301,9 +301,9 @@ module modexpng_general_worker task enable_narrow_xy_rd_en; _update_narrow_xy_rd_en(1'b1); endtask task disable_narrow_xy_rd_en; _update_narrow_xy_rd_en(1'b0); endtask - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin // disable_wide_xy_rd_en; disable_narrow_xy_rd_en; @@ -412,9 +412,9 @@ module modexpng_general_worker task enable_narrow_xy_wr_en; _update_narrow_xy_wr_en(1'b1); endtask task disable_narrow_xy_wr_en; _update_narrow_xy_wr_en(1'b0); endtask - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin // disable_wide_xy_wr_en; disable_narrow_xy_wr_en; @@ -1007,9 +1007,9 @@ module modexpng_general_worker // FSM Process // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) wrk_fsm_state <= WRK_FSM_STATE_IDLE; + if (!rst_n) wrk_fsm_state <= WRK_FSM_STATE_IDLE; else case (opcode) UOP_OPCODE_PROPAGATE_CARRIES, UOP_OPCODE_OUTPUT_FROM_NARROW, @@ -1156,9 +1156,9 @@ module modexpng_general_worker assign rdy = rdy_reg; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rdy_reg <= 1'b1; + if (!rst_n) rdy_reg <= 1'b1; else case (wrk_fsm_state) WRK_FSM_STATE_IDLE: rdy_reg <= ~ena; WRK_FSM_STATE_STOP: rdy_reg <= 1'b1; diff --git a/rtl/modexpng_io_block.v b/rtl/modexpng_io_block.v index 6d008aa..622c25e 100644 --- a/rtl/modexpng_io_block.v +++ b/rtl/modexpng_io_block.v @@ -1,6 +1,6 @@ module modexpng_io_block ( - clk, clk_bus, rst, + clk, rst_n, clk_bus, bus_cs, bus_we, @@ -33,8 +33,9 @@ module modexpng_io_block // Ports // input clk; + input rst_n; + input clk_bus; - input rst; input bus_cs; input bus_we; @@ -62,9 +63,9 @@ module modexpng_io_block reg in_1_reg_en = 1'b0; reg in_2_reg_en = 1'b0; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin in_1_reg_en <= 1'b0; in_2_reg_en <= 1'b0; end else begin diff --git a/rtl/modexpng_io_manager.v b/rtl/modexpng_io_manager.v index 5bce191..26661d4 100644 --- a/rtl/modexpng_io_manager.v +++ b/rtl/modexpng_io_manager.v @@ -1,7 +1,7 @@ module modexpng_io_manager ( clk, - rst, + rst_n, ena, rdy, @@ -75,7 +75,7 @@ module modexpng_io_manager // Ports // input clk; - input rst; + input rst_n; input ena; output rdy; @@ -376,9 +376,9 @@ module modexpng_io_manager // // Source Enable Logic // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin in_1_en <= 1'b0; in_2_en <= 1'b0; end else case (io_fsm_state_next) @@ -405,9 +405,9 @@ module modexpng_io_manager // // Destination Enable Logic // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin // wide_xy_ena_x <= 1'b0; wide_xy_ena_y <= 1'b0; @@ -556,7 +556,7 @@ module modexpng_io_manager assign in_1_addr_op_next_is_last = in_1_addr_op_next == word_index_last; assign in_2_addr_op_next_is_last = in_2_addr_op_next == word_index_last; - assign in_2_addr_op_next_is_one = in_2_addr_op_next == OP_ADDR_ONE; +// assign in_2_addr_op_next_is_one = in_2_addr_op_next == OP_ADDR_ONE; assign dummy_addr_op_next_is_last = dummy_addr_op_next == word_index_last; always @(posedge clk) begin @@ -635,10 +635,10 @@ module modexpng_io_manager // // FSM Process // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) io_fsm_state <= IO_FSM_STATE_IDLE; - else io_fsm_state <= io_fsm_state_next; + if (!rst_n) io_fsm_state <= IO_FSM_STATE_IDLE; + else io_fsm_state <= io_fsm_state_next; // @@ -692,9 +692,9 @@ module modexpng_io_manager assign rdy = rdy_reg; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rdy_reg <= 1'b1; + if (!rst_n) rdy_reg <= 1'b1; else case (io_fsm_state) IO_FSM_STATE_IDLE: rdy_reg <= ~ena; IO_FSM_STATE_STOP: rdy_reg <= 1'b1; diff --git a/rtl/modexpng_mmm_dual.v b/rtl/modexpng_mmm_dual.v index 13a8773..a868362 100644 --- a/rtl/modexpng_mmm_dual.v +++ b/rtl/modexpng_mmm_dual.v @@ -1,6 +1,6 @@ module modexpng_mmm_dual ( - clk, rst, + clk, rst_n, ena, rdy, @@ -56,16 +56,14 @@ module modexpng_mmm_dual // Headers // `include "modexpng_parameters.vh" - `include "../rtl_1/modexpng_mmm_fsm_old.vh" - //`include "../rtl_1/modexpng_parameters_old.vh" - //`include "../rtl_1/modexpng_parameters_x8_old.vh" + `include "modexpng_mmm_dual_fsm.vh" // // Ports // input clk; - input rst; + input rst_n; input ena; output rdy; @@ -122,23 +120,23 @@ module modexpng_mmm_dual // // FSM Declaration // - reg [FSM_STATE_WIDTH-1:0] fsm_state = FSM_STATE_IDLE; - reg [FSM_STATE_WIDTH-1:0] fsm_state_next; + reg [MMM_FSM_STATE_W-1:0] fsm_state = MMM_FSM_STATE_IDLE; + reg [MMM_FSM_STATE_W-1:0] fsm_state_next; - wire [FSM_STATE_WIDTH-1:0] fsm_state_after_idle; - wire [FSM_STATE_WIDTH-1:0] fsm_state_after_mult_square; - wire [FSM_STATE_WIDTH-1:0] fsm_state_after_mult_triangle; - wire [FSM_STATE_WIDTH-1:0] fsm_state_after_mult_rectangle; - wire [FSM_STATE_WIDTH-1:0] fsm_state_after_square_holdoff; + wire [MMM_FSM_STATE_W-1:0] fsm_state_after_idle; + wire [MMM_FSM_STATE_W-1:0] fsm_state_after_mult_square; + wire [MMM_FSM_STATE_W-1:0] fsm_state_after_mult_triangle; + wire [MMM_FSM_STATE_W-1:0] fsm_state_after_mult_rectangle; + wire [MMM_FSM_STATE_W-1:0] fsm_state_after_square_holdoff; // // FSM Process // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) fsm_state <= FSM_STATE_IDLE; - else fsm_state <= fsm_state_next; + if (!rst_n) fsm_state <= MMM_FSM_STATE_IDLE; + else fsm_state <= fsm_state_next; // @@ -193,9 +191,9 @@ module modexpng_mmm_dual // case (fsm_state_next) // - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_INIT: begin + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT: begin col_index <= 5'd0; col_index_last <= word_index_last[7:3]; col_index_next <= 5'd1; @@ -203,9 +201,9 @@ module modexpng_mmm_dual end // - FSM_STATE_MULT_SQUARE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT: begin + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT: begin col_index <= col_index_next; col_is_last <= col_index_next == col_index_last; col_index_next <= col_index_next == col_index_last ? 5'd0 : col_index_next + 5'd1; @@ -242,8 +240,8 @@ module modexpng_mmm_dual // case (fsm_state) // - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: square_almost_done_flop <= square_almost_done_comb; // default: @@ -262,8 +260,8 @@ module modexpng_mmm_dual // case (fsm_state) // - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: triangle_almost_done_flop <= triangle_almost_done_comb; // default: @@ -283,8 +281,8 @@ module modexpng_mmm_dual // case (fsm_state) // - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: rectangle_almost_done_flop <= rectangle_almost_done_comb; // default: @@ -301,36 +299,36 @@ module modexpng_mmm_dual // // Narrow Storage Control Logic // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) narrow_xy_ena <= 1'b0; + if (!rst_n) narrow_xy_ena <= 1'b0; else begin // // Narrow Address // case (fsm_state_next) // - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_SQUARE_COL_N_INIT: narrow_xy_addr <= 8'd0; - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: narrow_xy_addr <= !square_almost_done_flop ? narrow_xy_addr + 1'b1 : 8'd0; + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT: narrow_xy_addr <= 8'd0; + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: narrow_xy_addr <= !square_almost_done_flop ? narrow_xy_addr + 1'b1 : 8'd0; // - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT: narrow_xy_addr <= 8'd0; - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: narrow_xy_addr <= triangle_almost_done_flop || (col_is_last && triangle_surely_done_flop) ? + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT: narrow_xy_addr <= 8'd0; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: narrow_xy_addr <= triangle_almost_done_flop || (col_is_last && triangle_surely_done_flop) ? 8'd0 : narrow_xy_addr + 1'b1; // - FSM_STATE_MULT_RECTANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT: narrow_xy_addr <= 8'd0; - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: narrow_xy_addr <= rectangle_almost_done_flop || rectangle_surely_done_flop ? + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT: narrow_xy_addr <= 8'd0; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: narrow_xy_addr <= rectangle_almost_done_flop || rectangle_surely_done_flop ? 8'd1 : narrow_xy_addr + 1'b1; // default: narrow_xy_addr <= 8'dX; @@ -341,27 +339,27 @@ module modexpng_mmm_dual // case (fsm_state_next) // - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_SQUARE_COL_N_INIT, - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: narrow_xy_bank <= sel_narrow_in; + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: narrow_xy_bank <= sel_narrow_in; // - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: narrow_xy_bank <= col_is_last && (triangle_almost_done_flop || triangle_surely_done_flop) ? + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: narrow_xy_bank <= col_is_last && (triangle_almost_done_flop || triangle_surely_done_flop) ? BANK_NARROW_EXT : BANK_NARROW_COEFF; // - FSM_STATE_MULT_RECTANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: narrow_xy_bank <= rectangle_almost_done_flop || rectangle_surely_done_flop ? + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: narrow_xy_bank <= rectangle_almost_done_flop || rectangle_surely_done_flop ? BANK_NARROW_EXT : BANK_NARROW_Q; // default: narrow_xy_bank <= 2'bXX; @@ -370,24 +368,24 @@ module modexpng_mmm_dual // case (fsm_state_next) // - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_SQUARE_COL_N_INIT, - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG: narrow_xy_ena <= 1'b1; - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: narrow_xy_ena <= ~square_almost_done_flop; - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: narrow_xy_ena <= 1'b1; - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: narrow_xy_ena <= !col_is_last ? ~triangle_almost_done_flop : ~triangle_surely_done_flop; - FSM_STATE_MULT_RECTANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG: narrow_xy_ena <= 1'b1; - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: narrow_xy_ena <= ~rectangle_surely_done_flop; + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG: narrow_xy_ena <= 1'b1; + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: narrow_xy_ena <= ~square_almost_done_flop; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: narrow_xy_ena <= 1'b1; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: narrow_xy_ena <= !col_is_last ? ~triangle_almost_done_flop : ~triangle_surely_done_flop; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG: narrow_xy_ena <= 1'b1; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: narrow_xy_ena <= ~rectangle_surely_done_flop; // default: narrow_xy_ena <= 1'b0; // @@ -420,9 +418,9 @@ module modexpng_mmm_dual endfunction integer j; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin wide_xy_ena <= 1'b0; wide_xy_ena_aux <= 1'b0; end else begin @@ -435,26 +433,26 @@ module modexpng_mmm_dual // // this can be reworked by having 8 address regs instead of 4 and using shifts instead of subtractions! // - FSM_STATE_MULT_SQUARE_COL_0_INIT: wide_xy_addr[j] <= {5'd0, wide_offset_rom[j]}; - FSM_STATE_MULT_SQUARE_COL_N_INIT: wide_xy_addr[j] <= {col_index_next, wide_offset_rom[j]}; - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_addr[j] <= wide_xy_addr_next(wide_xy_addr[j], word_index_last); + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT: wide_xy_addr[j] <= {5'd0, wide_offset_rom[j]}; + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT: wide_xy_addr[j] <= {col_index_next, wide_offset_rom[j]}; + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_addr[j] <= wide_xy_addr_next(wide_xy_addr[j], word_index_last); // - FSM_STATE_MULT_TRIANGLE_COL_0_INIT: wide_xy_addr[j] <= {5'd0, wide_offset_rom[j]}; - FSM_STATE_MULT_TRIANGLE_COL_N_INIT: wide_xy_addr[j] <= {col_index_next, wide_offset_rom[j]}; - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_addr[j] <= wide_xy_addr_next(wide_xy_addr[j], word_index_last); + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT: wide_xy_addr[j] <= {5'd0, wide_offset_rom[j]}; + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT: wide_xy_addr[j] <= {col_index_next, wide_offset_rom[j]}; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_addr[j] <= wide_xy_addr_next(wide_xy_addr[j], word_index_last); // - FSM_STATE_MULT_RECTANGLE_COL_0_INIT: wide_xy_addr[j] <= {5'd0, wide_offset_rom[j]}; - FSM_STATE_MULT_RECTANGLE_COL_N_INIT: wide_xy_addr[j] <= {col_index_next, wide_offset_rom[j]}; - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: wide_xy_addr[j] <= wide_xy_addr_next(wide_xy_addr[j], word_index_last); + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT: wide_xy_addr[j] <= {5'd0, wide_offset_rom[j]}; + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT: wide_xy_addr[j] <= {col_index_next, wide_offset_rom[j]}; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: wide_xy_addr[j] <= wide_xy_addr_next(wide_xy_addr[j], word_index_last); // default: wide_xy_addr[j] <= 8'dX; endcase @@ -465,27 +463,27 @@ module modexpng_mmm_dual // // this can be reworked by having 8 address regs instead of 4 and using shifts instead of subtractions! // - FSM_STATE_MULT_SQUARE_COL_0_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; - FSM_STATE_MULT_SQUARE_COL_N_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_addr_aux <= wide_xy_addr_next(wide_xy_addr_aux, word_index_last); + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_addr_aux <= wide_xy_addr_next(wide_xy_addr_aux, word_index_last); // - FSM_STATE_MULT_TRIANGLE_COL_0_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; - FSM_STATE_MULT_TRIANGLE_COL_N_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_addr_aux <= wide_xy_addr_next(wide_xy_addr_aux, word_index_last); + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT: wide_xy_addr_aux <= {5'd0, 3'd1}; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_addr_aux <= wide_xy_addr_next(wide_xy_addr_aux, word_index_last); // - FSM_STATE_MULT_RECTANGLE_COL_0_INIT: wide_xy_addr_aux <= 8'dX;//{5'd0, 3'd0}; - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY, - FSM_STATE_MULT_RECTANGLE_HOLDOFF: wide_xy_addr_aux <= rcmb_xy_valid ? rcmb_xy_addr : 8'dX; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT: wide_xy_addr_aux <= 8'dX;//{5'd0, 3'd0}; + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF: wide_xy_addr_aux <= rcmb_xy_valid ? rcmb_xy_addr : 8'dX; //recomb_fat_bram_xy_dout_valid && (recomb_fat_bram_xy_bank == BANK_FAT_ML) ? //mac_fat_bram_xy_addr[4] + 1'b1 : mac_fat_bram_xy_addr[4]; // @@ -495,49 +493,49 @@ module modexpng_mmm_dual // Wide Bank // case (fsm_state_next) - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_SQUARE_COL_N_INIT, - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_bank <= sel_wide_in; - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: wide_xy_bank <= BANK_WIDE_L; - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_bank <= BANK_WIDE_L; - FSM_STATE_MULT_RECTANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: wide_xy_bank <= BANK_WIDE_N; + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_bank <= sel_wide_in; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: wide_xy_bank <= BANK_WIDE_L; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_bank <= BANK_WIDE_L; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: wide_xy_bank <= BANK_WIDE_N; default: wide_xy_bank <= 3'bXXX; endcase // // Wide Aux Bank // case (fsm_state_next) - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_SQUARE_COL_N_INIT, - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_bank_aux <= sel_wide_in; - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: wide_xy_bank_aux <= BANK_WIDE_H; - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_bank_aux <= BANK_WIDE_L; - FSM_STATE_MULT_RECTANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY, - FSM_STATE_MULT_RECTANGLE_HOLDOFF: if (rcmb_xy_valid) // rewrite using "Kolya-style" here (get rid of too many xxx's) + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: wide_xy_bank_aux <= sel_wide_in; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: wide_xy_bank_aux <= BANK_WIDE_H; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_bank_aux <= BANK_WIDE_L; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF: if (rcmb_xy_valid) // rewrite using "Kolya-style" here (get rid of too many xxx's) case (rcmb_xy_bank) BANK_RCMB_ML: wide_xy_bank_aux <= BANK_WIDE_L; BANK_RCMB_MH: wide_xy_bank_aux <= BANK_WIDE_H; @@ -551,43 +549,43 @@ module modexpng_mmm_dual // Wide Enable // case (fsm_state_next) - FSM_STATE_MULT_SQUARE_COL_0_INIT, - FSM_STATE_MULT_SQUARE_COL_N_INIT, - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_0_INIT, - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: wide_xy_ena <= 1'b1; + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT, + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: wide_xy_ena <= 1'b1; default: wide_xy_ena <= 1'b0; endcase // // Wide Aux Enable // case (fsm_state_next) - FSM_STATE_MULT_TRIANGLE_COL_0_INIT, - FSM_STATE_MULT_TRIANGLE_COL_N_INIT, - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_ena_aux <= 1'b1; - FSM_STATE_MULT_RECTANGLE_COL_0_INIT: wide_xy_ena_aux <= 1'b0;//1'b1; - FSM_STATE_MULT_RECTANGLE_COL_N_INIT, - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY, - FSM_STATE_MULT_RECTANGLE_HOLDOFF: wide_xy_ena_aux <= rcmb_xy_valid;// && (recomb_fat_bram_xy_bank == BANK_FAT_ML); + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: wide_xy_ena_aux <= 1'b1; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT: wide_xy_ena_aux <= 1'b0;//1'b1; + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF: wide_xy_ena_aux <= rcmb_xy_valid;// && (recomb_fat_bram_xy_bank == BANK_FAT_ML); default: wide_xy_ena_aux <= 1'b0; endcase // @@ -686,9 +684,9 @@ module modexpng_mmm_dual reg narrow_xy_ena_dly1 = 1'b0; reg narrow_xy_ena_dly2 = 1'b0; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin // narrow_xy_ena_dly1 <= 1'b0; narrow_xy_ena_dly2 <= 1'b0; @@ -721,13 +719,13 @@ module modexpng_mmm_dual always @(posedge clk) begin // case (fsm_state) - FSM_STATE_MULT_SQUARE_COL_0_TRIG: dsp_merge_xy_b <= 1'b1; - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG: dsp_merge_xy_b <= 1'b0; + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG: dsp_merge_xy_b <= 1'b1; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG: dsp_merge_xy_b <= 1'b0; endcase // case (fsm_state) - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG: dsp_merge_xy_b_first <= 1'b1; + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG: dsp_merge_xy_b_first <= 1'b1; default: dsp_merge_xy_b_first <= 1'b0; endcase // @@ -815,18 +813,18 @@ module modexpng_mmm_dual always @(posedge clk) // case (fsm_state_next) - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG: dsp_xy_mode_z_adv4 <= {9{1'b0}}; - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: dsp_xy_mode_z_adv4 <= calc_mac_mode_z_square(col_index_prev, narrow_xy_addr_dly); - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: dsp_xy_mode_z_adv4 <= {9{1'b0}}; // so easy - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: dsp_xy_mode_z_adv4 <= {9{1'b1}}; - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG: dsp_xy_mode_z_adv4 <= {9{1'b0}}; // so easy - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: dsp_xy_mode_z_adv4 <= calc_mac_mode_z_rectangle(col_index_prev, narrow_xy_addr_dly); + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG: dsp_xy_mode_z_adv4 <= {9{1'b0}}; + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: dsp_xy_mode_z_adv4 <= calc_mac_mode_z_square(col_index_prev, narrow_xy_addr_dly); + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: dsp_xy_mode_z_adv4 <= {9{1'b0}}; // so easy + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: dsp_xy_mode_z_adv4 <= {9{1'b1}}; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG: dsp_xy_mode_z_adv4 <= {9{1'b0}}; // so easy + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: dsp_xy_mode_z_adv4 <= calc_mac_mode_z_rectangle(col_index_prev, narrow_xy_addr_dly); default: dsp_xy_mode_z_adv4 <= {9{1'b1}}; endcase @@ -851,7 +849,7 @@ module modexpng_mmm_dual modexpng_recombinator_block recombinator_block ( .clk (clk), - .rst (rst), + .rst_n (rst_n), .ena (rcmb_ena), .rdy (rcmb_rdy), @@ -894,10 +892,10 @@ module modexpng_mmm_dual // // Recombinator Enable Logic // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rcmb_ena <= 1'b0; - else rcmb_ena <= dsp_xy_ce_a && !dsp_xy_ce_b && !dsp_xy_ce_m && !dsp_xy_ce_p; + if (!rst_n) rcmb_ena <= 1'b0; + else rcmb_ena <= dsp_xy_ce_a && !dsp_xy_ce_b && !dsp_xy_ce_m && !dsp_xy_ce_p; // @@ -911,55 +909,55 @@ module modexpng_mmm_dual // // FSM Transition Logic // - assign fsm_state_after_idle = !only_reduce ? FSM_STATE_MULT_SQUARE_COL_0_INIT : FSM_STATE_MULT_TRIANGLE_COL_0_INIT; - assign fsm_state_after_mult_square = col_is_last ? FSM_STATE_MULT_SQUARE_HOLDOFF : FSM_STATE_MULT_SQUARE_COL_N_INIT; - assign fsm_state_after_mult_triangle = col_is_last ? FSM_STATE_MULT_TRIANGLE_HOLDOFF : FSM_STATE_MULT_TRIANGLE_COL_N_INIT; - assign fsm_state_after_mult_rectangle = col_is_last ? FSM_STATE_MULT_RECTANGLE_HOLDOFF : FSM_STATE_MULT_RECTANGLE_COL_N_INIT; - assign fsm_state_after_square_holdoff = just_multiply ? FSM_STATE_STOP : FSM_STATE_MULT_TRIANGLE_COL_0_INIT; + assign fsm_state_after_idle = !only_reduce ? MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT : MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT; + assign fsm_state_after_mult_square = col_is_last ? MMM_FSM_STATE_MULT_SQUARE_HOLDOFF : MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT; + assign fsm_state_after_mult_triangle = col_is_last ? MMM_FSM_STATE_MULT_TRIANGLE_HOLDOFF : MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT; + assign fsm_state_after_mult_rectangle = col_is_last ? MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF : MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT; + assign fsm_state_after_square_holdoff = just_multiply ? MMM_FSM_STATE_STOP : MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT; always @* begin // - fsm_state_next = FSM_STATE_IDLE; + fsm_state_next = MMM_FSM_STATE_IDLE; // case (fsm_state) - FSM_STATE_IDLE: fsm_state_next = ena ? fsm_state_after_idle /*FSM_STATE_MULT_SQUARE_COL_0_INIT*/ : FSM_STATE_IDLE; + MMM_FSM_STATE_IDLE: fsm_state_next = ena ? fsm_state_after_idle /*MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT*/ : MMM_FSM_STATE_IDLE; - FSM_STATE_MULT_SQUARE_COL_0_INIT: fsm_state_next = FSM_STATE_MULT_SQUARE_COL_0_TRIG ; - FSM_STATE_MULT_SQUARE_COL_0_TRIG: fsm_state_next = FSM_STATE_MULT_SQUARE_COL_0_BUSY ; - FSM_STATE_MULT_SQUARE_COL_0_BUSY: fsm_state_next = square_done ? FSM_STATE_MULT_SQUARE_COL_N_INIT : FSM_STATE_MULT_SQUARE_COL_0_BUSY; + MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT: fsm_state_next = MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG ; + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG: fsm_state_next = MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY ; + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY: fsm_state_next = square_done ? MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT : MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY; - FSM_STATE_MULT_SQUARE_COL_N_INIT: fsm_state_next = FSM_STATE_MULT_SQUARE_COL_N_TRIG ; - FSM_STATE_MULT_SQUARE_COL_N_TRIG: fsm_state_next = FSM_STATE_MULT_SQUARE_COL_N_BUSY ; - FSM_STATE_MULT_SQUARE_COL_N_BUSY: fsm_state_next = square_done ? fsm_state_after_mult_square : FSM_STATE_MULT_SQUARE_COL_N_BUSY; + MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT: fsm_state_next = MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG ; + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG: fsm_state_next = MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY ; + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: fsm_state_next = square_done ? fsm_state_after_mult_square : MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY; - FSM_STATE_MULT_SQUARE_HOLDOFF: fsm_state_next = rcmb_rdy ? fsm_state_after_square_holdoff : FSM_STATE_MULT_SQUARE_HOLDOFF; + MMM_FSM_STATE_MULT_SQUARE_HOLDOFF: fsm_state_next = rcmb_rdy ? fsm_state_after_square_holdoff : MMM_FSM_STATE_MULT_SQUARE_HOLDOFF; - FSM_STATE_MULT_TRIANGLE_COL_0_INIT: fsm_state_next = FSM_STATE_MULT_TRIANGLE_COL_0_TRIG ; - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG: fsm_state_next = FSM_STATE_MULT_TRIANGLE_COL_0_BUSY ; - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY: fsm_state_next = triangle_done ? FSM_STATE_MULT_TRIANGLE_COL_N_INIT : FSM_STATE_MULT_TRIANGLE_COL_0_BUSY; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT: fsm_state_next = MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG ; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG: fsm_state_next = MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY ; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY: fsm_state_next = triangle_done ? MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT : MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY; - FSM_STATE_MULT_TRIANGLE_COL_N_INIT: fsm_state_next = FSM_STATE_MULT_TRIANGLE_COL_N_TRIG ; - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: fsm_state_next = FSM_STATE_MULT_TRIANGLE_COL_N_BUSY ; - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: fsm_state_next = triangle_done ? fsm_state_after_mult_triangle : FSM_STATE_MULT_TRIANGLE_COL_N_BUSY; + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT: fsm_state_next = MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG ; + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG: fsm_state_next = MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY ; + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: fsm_state_next = triangle_done ? fsm_state_after_mult_triangle : MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY; - FSM_STATE_MULT_TRIANGLE_HOLDOFF: fsm_state_next = rcmb_rdy ? FSM_STATE_MULT_RECTANGLE_COL_0_INIT : FSM_STATE_MULT_TRIANGLE_HOLDOFF; + MMM_FSM_STATE_MULT_TRIANGLE_HOLDOFF: fsm_state_next = rcmb_rdy ? MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT : MMM_FSM_STATE_MULT_TRIANGLE_HOLDOFF; - FSM_STATE_MULT_RECTANGLE_COL_0_INIT: fsm_state_next = FSM_STATE_MULT_RECTANGLE_COL_0_TRIG ; - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG: fsm_state_next = FSM_STATE_MULT_RECTANGLE_COL_0_BUSY ; - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY: fsm_state_next = rectangle_done ? FSM_STATE_MULT_RECTANGLE_COL_N_INIT : FSM_STATE_MULT_RECTANGLE_COL_0_BUSY; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT: fsm_state_next = MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG ; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG: fsm_state_next = MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY ; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY: fsm_state_next = rectangle_done ? MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT : MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY; - FSM_STATE_MULT_RECTANGLE_COL_N_INIT: fsm_state_next = FSM_STATE_MULT_RECTANGLE_COL_N_TRIG ; - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG: fsm_state_next = FSM_STATE_MULT_RECTANGLE_COL_N_BUSY ; - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: fsm_state_next = rectangle_done ? fsm_state_after_mult_rectangle : FSM_STATE_MULT_RECTANGLE_COL_N_BUSY; + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT: fsm_state_next = MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG ; + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG: fsm_state_next = MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY ; + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: fsm_state_next = rectangle_done ? fsm_state_after_mult_rectangle : MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY; - FSM_STATE_MULT_RECTANGLE_HOLDOFF: fsm_state_next = rcmb_rdy ? FSM_STATE_WAIT_REDUCTOR : FSM_STATE_MULT_RECTANGLE_HOLDOFF; + MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF: fsm_state_next = rcmb_rdy ? MMM_FSM_STATE_WAIT_REDUCTOR : MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF; - FSM_STATE_WAIT_REDUCTOR: fsm_state_next = rdct_rdy ? FSM_STATE_STOP : FSM_STATE_WAIT_REDUCTOR; + MMM_FSM_STATE_WAIT_REDUCTOR: fsm_state_next = rdct_rdy ? MMM_FSM_STATE_STOP : MMM_FSM_STATE_WAIT_REDUCTOR; - FSM_STATE_STOP: fsm_state_next = FSM_STATE_IDLE ; + MMM_FSM_STATE_STOP: fsm_state_next = MMM_FSM_STATE_IDLE ; - default: fsm_state_next = FSM_STATE_IDLE ; + default: fsm_state_next = MMM_FSM_STATE_IDLE ; endcase // @@ -973,11 +971,11 @@ module modexpng_mmm_dual assign rdct_ena = rdct_ena_reg; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rdct_ena_reg <= 1'b0; + if (!rst_n) rdct_ena_reg <= 1'b0; else case (fsm_state) - FSM_STATE_MULT_RECTANGLE_COL_0_INIT: rdct_ena_reg <= 1'b1; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT: rdct_ena_reg <= 1'b1; default: rdct_ena_reg <= 1'b0; endcase @@ -989,12 +987,12 @@ module modexpng_mmm_dual assign rdy = rdy_reg; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rdy_reg <= 1'b1; + if (!rst_n) rdy_reg <= 1'b1; else begin if (rdy && ena) rdy_reg <= 1'b0; - if (!rdy && (fsm_state == FSM_STATE_STOP)) rdy_reg <= 1'b1; + if (!rdy && (fsm_state == MMM_FSM_STATE_STOP)) rdy_reg <= 1'b1; end endmodule diff --git a/rtl/modexpng_mmm_fsm.vh b/rtl/modexpng_mmm_dual_fsm.vh index 1c2a57b..a0e5efc 100644 --- a/rtl/modexpng_mmm_fsm.vh +++ b/rtl/modexpng_mmm_dual_fsm.vh @@ -1,43 +1,47 @@ -localparam MMM_FSM_STATE_W = 32; +`define MMM_FSM_STATE_W_DEF 6 -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_IDLE = 0; +localparam MMM_FSM_STATE_W = `MMM_FSM_STATE_W_DEF; + +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_IDLE = `MMM_FSM_STATE_W_DEF'd00; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_T1T2_1 = 1; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_T1T2_2 = 2; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_T1T2_3 = 3; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_T1T2_1 = `MMM_FSM_STATE_W_DEF'd01; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_T1T2_2 = `MMM_FSM_STATE_W_DEF'd02; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_T1T2_3 = `MMM_FSM_STATE_W_DEF'd03; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_NN_COEFF_1 = 4; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_NN_COEFF_2 = 5; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_NN_COEFF_3 = 6; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_NN_COEFF_1 = `MMM_FSM_STATE_W_DEF'd04; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_NN_COEFF_2 = `MMM_FSM_STATE_W_DEF'd05; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_LOAD_NN_COEFF_3 = `MMM_FSM_STATE_W_DEF'd06; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT = 11; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG = 12; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY = 13; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_0_INIT = `MMM_FSM_STATE_W_DEF'd11; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG = `MMM_FSM_STATE_W_DEF'd12; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY = `MMM_FSM_STATE_W_DEF'd13; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT = 14; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG = 15; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY = 16; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_N_INIT = `MMM_FSM_STATE_W_DEF'd14; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG = `MMM_FSM_STATE_W_DEF'd15; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY = `MMM_FSM_STATE_W_DEF'd16; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_HOLDOFF = 17; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_SQUARE_HOLDOFF = `MMM_FSM_STATE_W_DEF'd17; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT = 21; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG = 22; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY = 23; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_0_INIT = `MMM_FSM_STATE_W_DEF'd21; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG = `MMM_FSM_STATE_W_DEF'd22; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY = `MMM_FSM_STATE_W_DEF'd23; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT = 24; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG = 25; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY = 26; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_N_INIT = `MMM_FSM_STATE_W_DEF'd24; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG = `MMM_FSM_STATE_W_DEF'd25; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY = `MMM_FSM_STATE_W_DEF'd26; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_HOLDOFF = 27; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_TRIANGLE_HOLDOFF = `MMM_FSM_STATE_W_DEF'd27; + +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT = `MMM_FSM_STATE_W_DEF'd31; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG = `MMM_FSM_STATE_W_DEF'd32; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY = `MMM_FSM_STATE_W_DEF'd33; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_0_INIT = 31; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG = 32; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY = 33; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT = `MMM_FSM_STATE_W_DEF'd34; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG = `MMM_FSM_STATE_W_DEF'd35; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY = `MMM_FSM_STATE_W_DEF'd36; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_N_INIT = 34; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG = 35; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY = 36; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF = `MMM_FSM_STATE_W_DEF'd37; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_MULT_RECTANGLE_HOLDOFF = 37; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_WAIT_REDUCTOR = `MMM_FSM_STATE_W_DEF'd41; -localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_STOP = 40; +localparam [MMM_FSM_STATE_W-1:0] MMM_FSM_STATE_STOP = `MMM_FSM_STATE_W_DEF'd51; diff --git a/rtl/modexpng_parameters.vh b/rtl/modexpng_parameters.vh index 7d2837d..5320c1b 100644 --- a/rtl/modexpng_parameters.vh +++ b/rtl/modexpng_parameters.vh @@ -9,7 +9,7 @@ // /* Only define this for simulation, must be turned off to synthesize properly! */ -`define MODEXPNG_ENABLE_DEBUG +//`define MODEXPNG_ENABLE_DEBUG // // Core Settings diff --git a/rtl/modexpng_recombinator_block.v b/rtl/modexpng_recombinator_block.v index f698c18..7a9154a 100644 --- a/rtl/modexpng_recombinator_block.v +++ b/rtl/modexpng_recombinator_block.v @@ -1,6 +1,6 @@ module modexpng_recombinator_block ( - clk, rst, + clk, rst_n, ena, rdy, fsm_state_next, word_index_last, @@ -18,15 +18,14 @@ module modexpng_recombinator_block // Headers // `include "modexpng_parameters.vh" - `include "../rtl_1/modexpng_mmm_fsm_old.vh" - //`include "../rtl_1/modexpng_parameters_x8_old.vh" + `include "modexpng_mmm_dual_fsm.vh" input clk; - input rst; + input rst_n; input ena; output rdy; - input [FSM_STATE_WIDTH-1:0] fsm_state_next; + input [MMM_FSM_STATE_W-1:0] fsm_state_next; input [7:0] word_index_last; input dsp_xy_ce_p; input [9*47-1:0] dsp_x_p; @@ -83,10 +82,10 @@ module modexpng_recombinator_block // reg dsp_xy_ce_p_dly1 = 1'b0; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) dsp_xy_ce_p_dly1 <= 1'b0; - else dsp_xy_ce_p_dly1 <= dsp_xy_ce_p; + if (!rst_n) dsp_xy_ce_p_dly1 <= 1'b0; + else dsp_xy_ce_p_dly1 <= dsp_xy_ce_p; // @@ -144,9 +143,9 @@ module modexpng_recombinator_block if (ena) // case (fsm_state_next) - FSM_STATE_MULT_SQUARE_COL_0_BUSY: rcmb_mode <= 2'd1; - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY: rcmb_mode <= 2'd2; - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY: rcmb_mode <= 2'd3; + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY: rcmb_mode <= 2'd1; + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY: rcmb_mode <= 2'd2; + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY: rcmb_mode <= 2'd3; default: rcmb_mode <= 2'd0; endcase @@ -583,7 +582,7 @@ module modexpng_recombinator_block rcmb_xy_lsb_ce_purge <= {1'b0, rcmb_xy_lsb_ce_purge[2:1]}; // if (xy_purge_latch_msb && xy_bitmap_latch_msb[0] && !xy_bitmap_latch_msb[1]) - rcmb_xy_msb_ce_purge = 2'b11; + rcmb_xy_msb_ce_purge <= 2'b11; else rcmb_xy_msb_ce_purge <= {1'b0, rcmb_xy_msb_ce_purge[1]}; // @@ -628,10 +627,10 @@ module modexpng_recombinator_block // case (fsm_state_next) // - FSM_STATE_MULT_SQUARE_COL_0_TRIG, - FSM_STATE_MULT_SQUARE_COL_N_TRIG, - FSM_STATE_MULT_SQUARE_COL_0_BUSY, - FSM_STATE_MULT_SQUARE_COL_N_BUSY: begin + MMM_FSM_STATE_MULT_SQUARE_COL_0_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_N_TRIG, + MMM_FSM_STATE_MULT_SQUARE_COL_0_BUSY, + MMM_FSM_STATE_MULT_SQUARE_COL_N_BUSY: begin // xy_valid_lsb_adv [6] <= calc_square_valid_lsb (col_index, col_index_last, rd_narrow_xy_bank, rd_narrow_xy_addr); xy_aux_lsb_adv [6] <= 1'b0; @@ -645,10 +644,10 @@ module modexpng_recombinator_block // end // - FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, - FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, - FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: begin + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_TRIANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_TRIANGLE_COL_N_BUSY: begin // xy_valid_lsb_adv [6] <= calc_triangle_valid_lsb (col_index, col_index_last, rd_narrow_xy_bank, rd_narrow_xy_addr); xy_aux_lsb_adv [6] <= calc_triangle_aux_lsb (col_index, col_index_last, rd_narrow_xy_bank, rd_narrow_xy_addr); @@ -662,10 +661,10 @@ module modexpng_recombinator_block // end // - FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, - FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, - FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: begin + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_TRIG, + MMM_FSM_STATE_MULT_RECTANGLE_COL_0_BUSY, + MMM_FSM_STATE_MULT_RECTANGLE_COL_N_BUSY: begin // xy_valid_lsb_adv [6] <= calc_rectangle_valid_lsb (col_index, col_index_last, rd_narrow_xy_bank, rd_narrow_xy_addr); xy_aux_lsb_adv [6] <= 1'b0; @@ -772,9 +771,9 @@ module modexpng_recombinator_block reg rcmb_xy_lsb_valid = 1'b0; reg rcmb_xy_msb_valid = 1'b0; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin rcmb_xy_lsb_valid <= 1'b0; rcmb_xy_msb_valid <= 1'b0; end else begin diff --git a/rtl/modexpng_reductor.v b/rtl/modexpng_reductor.v index c9de32d..9a95f55 100644 --- a/rtl/modexpng_reductor.v +++ b/rtl/modexpng_reductor.v @@ -1,6 +1,6 @@ module modexpng_reductor ( - clk, rst, + clk, rst_n, ena, rdy, word_index_last, sel_wide_out, sel_narrow_out, @@ -14,13 +14,10 @@ module modexpng_reductor // Headers // `include "modexpng_parameters.vh" - //`include "../rtl_1/modexpng_mmm_fsm.vh" - - //`include "../rtl_1/modexpng_parameters_x8.vh" input clk; - input rst; + input rst_n; input ena; output rdy; /* @@ -70,11 +67,11 @@ module modexpng_reductor assign rdy = rdy_reg; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rdy_reg <= 1'b1; + if (!rst_n) rdy_reg <= 1'b1; else begin - if (rdy && ena) rdy_reg <= 1'b0; + if (rdy && ena) rdy_reg <= 1'b0; if (!rdy && !busy_now) rdy_reg <= 1'b1; end @@ -103,9 +100,9 @@ module modexpng_reductor reg [17:0] rcmb_y_dout_dly2; reg [17:0] rcmb_y_dout_dly3; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin rcmb_xy_valid_dly1 <= 1'b0; rcmb_xy_valid_dly2 <= 1'b0; rcmb_xy_valid_dly3 <= 1'b0; @@ -283,9 +280,9 @@ module modexpng_reductor // // // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin clear_rdct_wide; clear_rdct_narrow; end else begin @@ -325,17 +322,17 @@ module modexpng_reductor assign busy_now = busy_now_shreg[2]; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) busy_now_shreg <= {3{1'b0}}; + if (!rst_n) busy_now_shreg <= {3{1'b0}}; else begin if (rdy && ena) busy_now_shreg <= {3{1'b1}}; else busy_now_shreg <= {busy_now_shreg[1:0], busy_next}; end - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) busy_next <= 1'b0; + if (!rst_n) busy_next <= 1'b0; else begin if (rdy && ena) busy_next <= 1'b1; if (!rdy && rcmb_xy_valid_dly3 && (rcmb_xy_bank_dly3 == BANK_RCMB_EXT)) busy_next <= 1'b0; diff --git a/rtl/modexpng_storage_block.v b/rtl/modexpng_storage_block.v index 5a03b24..4b81e0b 100644 --- a/rtl/modexpng_storage_block.v +++ b/rtl/modexpng_storage_block.v @@ -1,6 +1,6 @@ module modexpng_storage_block ( - clk, rst, + clk, rst_n, wr_wide_xy_ena, wr_wide_xy_bank, @@ -55,7 +55,7 @@ module modexpng_storage_block // Ports // input clk; - input rst; + input rst_n; input wr_wide_xy_ena; input [ BANK_ADDR_W -1:0] wr_wide_xy_bank; @@ -108,9 +108,9 @@ module modexpng_storage_block reg wrk_wide_xy_reg_ena = 1'b0; reg wrk_narrow_xy_reg_ena = 1'b0; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin rd_wide_xy_reg_ena <= 1'b0; rd_wide_xy_reg_ena_aux <= 1'b0; rd_narrow_xy_reg_ena <= 1'b0; diff --git a/rtl/modexpng_storage_manager.v b/rtl/modexpng_storage_manager.v index c39e07a..eb4da4c 100644 --- a/rtl/modexpng_storage_manager.v +++ b/rtl/modexpng_storage_manager.v @@ -1,6 +1,6 @@ module modexpng_storage_manager ( - clk, rst, + clk, rst_n, wr_wide_xy_ena, wr_wide_xy_bank, wr_wide_xy_addr, wr_wide_x_dout, wr_wide_y_dout, wr_narrow_xy_ena, wr_narrow_xy_bank, wr_narrow_xy_addr, wr_narrow_x_dout, wr_narrow_y_dout, @@ -29,7 +29,7 @@ module modexpng_storage_manager // Ports // input clk; - input rst; + input rst_n; output wr_wide_xy_ena; output [BANK_ADDR_W -1:0] wr_wide_xy_bank; @@ -173,9 +173,9 @@ module modexpng_storage_manager // // Write Arbiter // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) disable_wide; + if (!rst_n) disable_wide; else begin // if (io_wide_xy_ena) enable_wide(io_wide_xy_bank, io_wide_xy_addr, io_wide_x_din, io_wide_y_din); @@ -190,9 +190,9 @@ module modexpng_storage_manager // // Read Arbiter // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) disable_narrow; + if (!rst_n) disable_narrow; else begin // if (io_narrow_xy_ena) enable_narrow(io_narrow_xy_bank, io_narrow_xy_addr, io_narrow_x_din, io_narrow_y_din); diff --git a/rtl/modexpng_uop_engine.v b/rtl/modexpng_uop_engine.v index 8ad2122..c7b064a 100644 --- a/rtl/modexpng_uop_engine.v +++ b/rtl/modexpng_uop_engine.v @@ -1,7 +1,7 @@ module modexpng_uop_engine ( clk, - rst, + rst_n, ena, rdy, @@ -83,7 +83,7 @@ module modexpng_uop_engine // Ports // input clk; - input rst; + input rst_n; input ena; output rdy; @@ -369,9 +369,9 @@ module modexpng_uop_engine // // UOP Trigger Logic // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) begin + if (!rst_n) begin io_mgr_ena_r <= 1'b0; mmm_ena_x_r <= 1'b0; mmm_ena_y_r <= 1'b0; @@ -618,10 +618,10 @@ module modexpng_uop_engine // // UOP FSM Process // - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) uop_fsm_state <= UOP_FSM_STATE_IDLE; - else uop_fsm_state <= uop_fsm_state_next; + if (!rst_n) uop_fsm_state <= UOP_FSM_STATE_IDLE; + else uop_fsm_state <= uop_fsm_state_next; // @@ -645,9 +645,9 @@ module modexpng_uop_engine reg rdy_r = 1'b1; assign rdy = rdy_r; - always @(posedge clk) + always @(posedge clk or negedge rst_n) // - if (rst) rdy_r <= 1'b1; + if (!rst_n) rdy_r <= 1'b1; else case (uop_fsm_state) UOP_FSM_STATE_IDLE: rdy_r <= ~ena; UOP_FSM_STATE_DECODE: rdy_r <= uop_opcode_is_stop; diff --git a/rtl/modexpng_wrapper.v b/rtl/modexpng_wrapper.v new file mode 100644 index 0000000..687a963 --- /dev/null +++ b/rtl/modexpng_wrapper.v @@ -0,0 +1,393 @@ +//====================================================================== +// +// Copyright (c) 2019, NORDUnet A/S All rights reserved. +// +// 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 modexpng_wrapper +( + input clk, + input rst_n, + + input clk_core, + + input cs, + input we, + + input [11:0] address, + input [31:0] write_data, + output [31:0] read_data +); + + // + // Headers + // + `include "modexpng_parameters.vh" + + + // + // Address Decoder + // + localparam ADDR_MSB_WRAP = 2'b00; + + wire [1:0] addr_msb = address[11:10]; + wire [9:0] addr_lsb = address[ 9: 0]; + + wire addr_msb_is_wrap = addr_msb == ADDR_MSB_WRAP; + + + // + // Register Addresses + // + localparam ADDR_NAME0 = 10'h000; + localparam ADDR_NAME1 = 10'h001; + localparam ADDR_VERSION = 10'h002; + + localparam ADDR_CONTROL = 10'h008; // {next, init} + localparam ADDR_STATUS = 10'h009; // {valid, ready} + localparam ADDR_MODE = 10'h010; // {crt, dummy} + localparam ADDR_MODULUS_BITS = 10'h011; // number of bits in modulus + localparam ADDR_EXPONENT_BITS = 10'h012; // number of bits in exponent + localparam ADDR_BANK_BITS = 10'h013; // largest supported number of bits + localparam ADDR_NUM_MULTS = 10'h014; // number of parallel multipliers + + + // + // Register Bits + // + + // localparam CONTROL_INIT_BIT = 0; -- not used + localparam CONTROL_NEXT_BIT = 1; + + // localparam STATUS_READY_BIT = 0; -- hardcoded to always read 1 + localparam STATUS_VALID_BIT = 1; + + // localparam MODE_FASTUNSAFE_BIT = 0; - not used + localparam MODE_FULLCRT_BIT = 1; + + + // + // Default Values + // + `define MODEXPNG_DEFAULT_NAME0 32'h6D6F6465 + `define MODEXPNG_DEFAULT_NAME1 32'h78706E67 + `define MODEXPNG_DEFAULT_VERSION 32'h302E3130 + + `define MODEXPNG_DEFAULT_CONTROL 1'b0 + `define MODEXPNG_DEFAULT_MODE 1'b0 + + `define MODEXPNG_DEFAULT_MODULUS_BITS 13'd1024 + `define MODEXPNG_DEFAULT_EXPONENT_BITS 13'd17 + + + // + // Handy Values + // + localparam MIN_OP_W = 2 * NUM_MULTS * WORD_W * 2; + localparam MIN_EXP_W = 2 * 2; + localparam ZEROES_BIT_INDEX_W = 1 + cryptech_clog2(NUM_MULTS) + cryptech_clog2(WORD_W); + + + // + // Register Values + // + localparam CORE_NAME0 = `MODEXPNG_DEFAULT_NAME0; // "mode" + localparam CORE_NAME1 = `MODEXPNG_DEFAULT_NAME1; // "xpng" + localparam CORE_VERSION = `MODEXPNG_DEFAULT_VERSION; // "0.10" + + + // + // Registers + // + reg wrap_reg_control = `MODEXPNG_DEFAULT_CONTROL; + reg sync_reg_control = `MODEXPNG_DEFAULT_CONTROL; + reg sync_reg_control_dly = `MODEXPNG_DEFAULT_CONTROL; + reg core_reg_control = `MODEXPNG_DEFAULT_CONTROL; + reg wrap_reg_mode = `MODEXPNG_DEFAULT_MODE; + reg sync_reg_mode; + reg core_reg_mode; + + reg [BIT_INDEX_W:ZEROES_BIT_INDEX_W] wrap_modulus_bits_msb; + reg [BIT_INDEX_W: 0] wrap_exponent_bits; + + initial write_modulus_bits(`MODEXPNG_DEFAULT_MODULUS_BITS); + initial write_exponent_bits(`MODEXPNG_DEFAULT_EXPONENT_BITS); + + wire sync_reg_control_rising = sync_reg_control & ~sync_reg_control_dly; + + + // + // Wires + // + reg wrap_reg_status = 1'b1; + reg sync_reg_status = 1'b1; + wire core_reg_status; + + always @(posedge clk or negedge rst_n) + // + if (!rst_n) {wrap_reg_status, sync_reg_status} <= { 1'b1, 1'b1}; + else {wrap_reg_status, sync_reg_status} <= {sync_reg_status, core_reg_status}; + + + // + // Output Mux + // + reg [31: 0] wrap_read_data; + wire [31: 0] core_read_data; + + + // + // Reset Resync + // + wire core_rst_n; + + reg [15: 0] core_rst_shreg = {16{1'b0}}; + + always @(posedge clk_core or negedge rst_n) + // + if (!rst_n) core_rst_shreg <= {16{1'b0}}; + else core_rst_shreg <= {core_rst_shreg[14:0], 1'b1}; + + assign core_rst_n = core_rst_shreg[15]; + + + // + // Parameters Resync + // + reg [OP_ADDR_W -1:0] wrap_word_index_last_n; + reg [OP_ADDR_W -1:0] wrap_word_index_last_pq; + + reg [BIT_INDEX_W -1:0] wrap_bit_index_last_n; + reg [BIT_INDEX_W -1:0] wrap_bit_index_last_pq; + + reg [OP_ADDR_W -1:0] sync_word_index_last_n; + reg [OP_ADDR_W -1:0] sync_word_index_last_pq; + + reg [BIT_INDEX_W -1:0] sync_bit_index_last_n; + reg [BIT_INDEX_W -1:0] sync_bit_index_last_pq; + + reg [OP_ADDR_W -1:0] core_word_index_last_n; + reg [OP_ADDR_W -1:0] core_word_index_last_pq; + + reg [BIT_INDEX_W -1:0] core_bit_index_last_n; + reg [BIT_INDEX_W -1:0] core_bit_index_last_pq; + + always @(posedge clk_core) begin + // + sync_reg_mode <= wrap_reg_mode; + // + sync_word_index_last_n <= wrap_word_index_last_n; + sync_word_index_last_pq <= wrap_word_index_last_pq; + // + sync_bit_index_last_n <= wrap_bit_index_last_n; + sync_bit_index_last_pq <= wrap_bit_index_last_pq; + // + end + + always @(posedge clk_core) + // + if (sync_reg_control_rising) begin + // + core_reg_mode <= sync_reg_mode; + // + core_word_index_last_n <= sync_word_index_last_n; + core_word_index_last_pq <= sync_word_index_last_pq; + // + core_bit_index_last_n <= sync_bit_index_last_n; + core_bit_index_last_pq <= sync_bit_index_last_pq; + // + end + + + // + // Trigger Logic + // + always @(posedge clk_core or negedge rst_n) + // + if (!rst_n) {sync_reg_control_dly, sync_reg_control} <= {`MODEXPNG_DEFAULT_CONTROL, `MODEXPNG_DEFAULT_CONTROL}; + else {sync_reg_control_dly, sync_reg_control} <= { sync_reg_control, wrap_reg_control}; + + always @(posedge clk_core or negedge rst_n) + // + if (!rst_n) core_reg_control <= `MODEXPNG_DEFAULT_CONTROL; + else core_reg_control <= sync_reg_control_rising; + + + // + // ModExpNG + // + modexpng_core_top modexpng + ( + .clk (clk_core), + .clk_bus (clk), + + .rst_n (core_rst_n), + + .next (core_reg_control), + .valid (core_reg_status), + + .crt_mode (core_reg_mode), + + .word_index_last_n (core_word_index_last_n), + .word_index_last_pq (core_word_index_last_pq), + + .bit_index_last_n (core_bit_index_last_n), + .bit_index_last_pq (core_bit_index_last_pq), + + .bus_cs (cs), + .bus_we (we), + .bus_addr (address), + .bus_data_wr (write_data), + .bus_data_rd (core_read_data) + ); + + + // + // Write Interface + // + always @(posedge clk or negedge rst_n) + // + if (!rst_n) begin + // + wrap_reg_control <= `MODEXPNG_DEFAULT_CONTROL; + wrap_reg_mode <= `MODEXPNG_DEFAULT_MODE; + // + write_modulus_bits(`MODEXPNG_DEFAULT_MODULUS_BITS); + write_exponent_bits(`MODEXPNG_DEFAULT_EXPONENT_BITS); + // + end else if (cs && we && addr_msb_is_wrap) + // + case (addr_lsb) + ADDR_CONTROL: wrap_reg_control <= write_data[CONTROL_NEXT_BIT]; + ADDR_MODE: wrap_reg_mode <= write_data[MODE_FULLCRT_BIT]; + ADDR_MODULUS_BITS: write_modulus_bits(write_data[BIT_INDEX_W:0]); + ADDR_EXPONENT_BITS: write_exponent_bits(write_data[BIT_INDEX_W:0]); + endcase + + + // + // Update modulus width + // + function [BIT_INDEX_W:ZEROES_BIT_INDEX_W] fix_modulus_bits; + input [BIT_INDEX_W: 0] width; + if (width < MIN_OP_W) fix_modulus_bits = MIN_OP_W[BIT_INDEX_W:ZEROES_BIT_INDEX_W]; + else if (width > MAX_OP_W) fix_modulus_bits = MAX_OP_W[BIT_INDEX_W:ZEROES_BIT_INDEX_W]; + else fix_modulus_bits = width [BIT_INDEX_W:ZEROES_BIT_INDEX_W]; + endfunction + + function [OP_ADDR_W-1: 0] calc_modulus_num_words_n; + input [BIT_INDEX_W:ZEROES_BIT_INDEX_W] width; + calc_modulus_num_words_n = {width, {(ZEROES_BIT_INDEX_W-WORD_MUX_W){1'b0}}} - 1'b1; // truncates msb + endfunction + + function [OP_ADDR_W-1: 0] calc_modulus_num_words_pq; + input [BIT_INDEX_W:ZEROES_BIT_INDEX_W] width; + calc_modulus_num_words_pq = {width, {(ZEROES_BIT_INDEX_W-WORD_MUX_W-1){1'b0}}} - 1'b1; // fits exactly + endfunction + + task write_modulus_bits; + input [BIT_INDEX_W:0] width; + begin + wrap_modulus_bits_msb <= fix_modulus_bits(width); + wrap_word_index_last_n <= calc_modulus_num_words_n(fix_modulus_bits(width)); + wrap_word_index_last_pq <= calc_modulus_num_words_pq(fix_modulus_bits(width)); + end + endtask + + + // + // Update exponent width + // + function [BIT_INDEX_W:0] fix_exponent_bits; + input [BIT_INDEX_W:0] width; + if (width < MIN_EXP_W) fix_exponent_bits = MIN_EXP_W; + else if (width > MAX_OP_W ) fix_exponent_bits = MAX_OP_W; + else fix_exponent_bits = width; + endfunction + + function [BIT_INDEX_W-1:0] calc_exponent_num_bits_n; + input [BIT_INDEX_W :0] width; + calc_exponent_num_bits_n = width - 1'b1; // truncates msb + endfunction + + function [BIT_INDEX_W-1:0] calc_exponent_num_bits_pq; + input [BIT_INDEX_W: 0] width; + calc_exponent_num_bits_pq = width[BIT_INDEX_W:1] - 1'b1; // fits exactly + endfunction + + task write_exponent_bits; + input [BIT_INDEX_W:0] width; + begin + wrap_exponent_bits <= fix_exponent_bits(width); + wrap_bit_index_last_n <= calc_exponent_num_bits_n(fix_exponent_bits(width)); + wrap_bit_index_last_pq <= calc_exponent_num_bits_pq(fix_exponent_bits(width)); + end + endtask + + + // + // Read Interface + // + always @(posedge clk) + // + if (cs && addr_msb_is_wrap) + // + case (address) + // + ADDR_NAME0: wrap_read_data <= CORE_NAME0; + ADDR_NAME1: wrap_read_data <= CORE_NAME1; + ADDR_VERSION: wrap_read_data <= CORE_VERSION; + ADDR_CONTROL: wrap_read_data <= {{30{1'b0}}, wrap_reg_control, 1'b0}; + ADDR_STATUS: wrap_read_data <= {{30{1'b0}}, wrap_reg_status, 1'b1}; + // + ADDR_MODE: wrap_read_data <= {{30{1'b0}}, wrap_reg_mode, 1'b0}; + ADDR_MODULUS_BITS: wrap_read_data <= {{(31-BIT_INDEX_W){1'b0}}, wrap_modulus_bits_msb, {ZEROES_BIT_INDEX_W{1'b0}}}; + ADDR_EXPONENT_BITS: wrap_read_data <= {{(31-BIT_INDEX_W){1'b0}}, wrap_exponent_bits}; + ADDR_BANK_BITS: wrap_read_data <= MAX_OP_W; + ADDR_NUM_MULTS: wrap_read_data <= NUM_MULTS; + // + default: wrap_read_data <= 32'h00000000; + // + endcase + + + // + // Register / Core Memory Selector + // + reg [1:0] addr_msb_last; + + wire addr_msb_last_is_wrap = addr_msb_last == ADDR_MSB_WRAP; + + always @(posedge clk) + addr_msb_last <= addr_msb; + + assign read_data = addr_msb_last_is_wrap ? wrap_read_data : core_read_data; + + +endmodule |