diff options
Diffstat (limited to 'rtl/modexpng_part_recombinator.v')
| -rw-r--r-- | rtl/modexpng_part_recombinator.v | 1128 |
1 files changed, 0 insertions, 1128 deletions
diff --git a/rtl/modexpng_part_recombinator.v b/rtl/modexpng_part_recombinator.v deleted file mode 100644 index 957ba8e..0000000 --- a/rtl/modexpng_part_recombinator.v +++ /dev/null @@ -1,1128 +0,0 @@ -module modexpng_part_recombinator -( - clk, - rdy, - fsm_state_next, - index_last, - dsp_x_ce_p, dsp_y_ce_p, - ena_x, ena_y, - dsp_x_p, dsp_y_p, - col_index, col_index_last, - slim_bram_xy_addr, slim_bram_xy_bank, - rcmb_fat_bram_xy_bank, rcmb_fat_bram_xy_addr, rcmb_fat_bram_x_dout, rcmb_fat_bram_y_dout, rcmb_fat_bram_xy_dout_valid, - rcmb_slim_bram_xy_bank, rcmb_slim_bram_xy_addr, rcmb_slim_bram_x_dout, rcmb_slim_bram_y_dout, rcmb_slim_bram_xy_dout_valid -); - - - // - // Headers - // - `include "../rtl/modexpng_mmm_fsm.vh" - `include "../rtl/modexpng_parameters.vh" - `include "../rtl/modexpng_parameters_x8.vh" - - - input clk; - output rdy; - input [FSM_STATE_WIDTH-1:0] fsm_state_next; - input [7:0] index_last; - input dsp_x_ce_p; - input dsp_y_ce_p; - input ena_x; - input ena_y; - input [9*47-1:0] dsp_x_p; - input [9*47-1:0] dsp_y_p; - input [ 4:0] col_index; - input [ 4:0] col_index_last; - input [ 7:0] slim_bram_xy_addr; - input [ 1:0] slim_bram_xy_bank; - - output [ 2:0] rcmb_fat_bram_xy_bank; - output [ 7:0] rcmb_fat_bram_xy_addr; - output [ 17:0] rcmb_fat_bram_x_dout; - output [ 17:0] rcmb_fat_bram_y_dout; - output rcmb_fat_bram_xy_dout_valid; - - output [ 2:0] rcmb_slim_bram_xy_bank; - output [ 7:0] rcmb_slim_bram_xy_addr; - output [ 17:0] rcmb_slim_bram_x_dout; - output [ 17:0] rcmb_slim_bram_y_dout; - output rcmb_slim_bram_xy_dout_valid; - - - // - // Latches - // - reg [1*47-1:0] dsp_x_p_latch[0:8]; - reg [1*47-1:0] dsp_y_p_latch[0:8]; - - - // - // Mapping - // - wire [46:0] dsp_x_p_split[0:8]; - wire [46:0] dsp_y_p_split[0:8]; - - genvar z; - generate for (z=0; z<(NUM_MULTS+1); z=z+1) - begin : gen_dsp_xy_p_split - assign dsp_x_p_split[z] = dsp_x_p[47*z+:47]; - assign dsp_y_p_split[z] = dsp_y_p[47*z+:47]; - end - endgenerate - - - // - // Delays - // - reg dsp_y_ce_p_dly1 = 1'b0; - reg dsp_x_ce_p_dly1 = 1'b0; - - always @(posedge clk) begin - // - {dsp_y_ce_p_dly1, dsp_x_ce_p_dly1} <= {dsp_y_ce_p, dsp_x_ce_p}; - // - end - - - // - // Registers - // - - // valid - reg x_valid_lsb = 1'b0; - reg y_valid_lsb = 1'b0; - reg x_aux_lsb = 1'b0; - reg y_aux_lsb = 1'b0; - reg x_valid_msb = 1'b0; - reg y_valid_msb = 1'b0; - - // bitmap - reg [7:0] x_bitmap_lsb = {8{1'b0}}; - reg [7:0] y_bitmap_lsb = {8{1'b0}}; - reg [7:0] x_bitmap_msb = {8{1'b0}}; - reg [7:0] y_bitmap_msb = {8{1'b0}}; - - // index - reg [2:0] x_index_lsb = 3'dX; - reg [2:0] y_index_lsb = 3'dX; - - // purge - reg x_purge_lsb = 1'b0; - reg y_purge_lsb = 1'b0; - reg x_purge_msb = 1'b0; - reg y_purge_msb = 1'b0; - - // valid - latch - reg x_valid_latch_lsb = 1'b0; - reg y_valid_latch_lsb = 1'b0; - - // aux - latch - reg x_aux_latch_lsb = 1'b0; - reg y_aux_latch_lsb = 1'b0; - - // bitmap - latch - reg [7:0] x_bitmap_latch_lsb = {8{1'b0}}; - reg [7:0] y_bitmap_latch_lsb = {8{1'b0}}; - reg [7:0] x_bitmap_latch_msb = {8{1'b0}}; - reg [7:0] y_bitmap_latch_msb = {8{1'b0}}; - - // index - latch - reg [2:0] x_index_latch_lsb = 3'dX; - reg [2:0] y_index_latch_lsb = 3'dX; - - // purge - index - reg x_purge_latch_lsb = 1'b0; - reg y_purge_latch_lsb = 1'b0; - reg x_purge_latch_msb = 1'b0; - reg y_purge_latch_msb = 1'b0; - - // - reg xy_valid_lsb_adv[1:6]; - reg xy_valid_msb_adv[1:6]; - reg xy_aux_lsb_adv[1:6]; - reg [7:0] xy_bitmap_lsb_adv[1:6]; - reg [7:0] xy_bitmap_msb_adv[1:6]; - reg [2:0] xy_index_lsb_adv[1:6]; - reg [2:0] xy_index_msb_adv[1:6]; - reg xy_purge_lsb_adv[1:6]; - reg xy_purge_msb_adv[1:6]; - - reg [1:0] rcmb_mode; - - always @(posedge clk) - // - if (ena_x && ena_y) - // - 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; - default: rcmb_mode <= 2'd0; - endcase - - - integer i; - initial for (i=1; i<6; i=i+1) begin - xy_valid_lsb_adv[i] = 1'b0; - xy_valid_msb_adv[i] = 1'b0; - xy_aux_lsb_adv[i] = 1'b0; - xy_bitmap_lsb_adv[i] = {8{1'b0}}; - xy_bitmap_msb_adv[i] = {8{1'b0}}; - xy_index_lsb_adv[i] = 3'dX; - xy_index_msb_adv[i] = 3'dX; - xy_purge_lsb_adv[i] = 1'b0; - xy_purge_msb_adv[i] = 1'b0; - end - - function calc_square_valid_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - calc_square_valid_lsb = 1'b1; - else - calc_square_valid_lsb = 1'b0; - // - end - endfunction - - function calc_triangle_valid_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - calc_triangle_valid_lsb = 1'b1; - else - calc_triangle_valid_lsb = 1'b0; - // - end - endfunction - - function calc_triangle_aux_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - begin - // - if (slim_bram_xy_bank_value == BANK_SLIM_EXT) - calc_triangle_aux_lsb = 1'b1; - else - calc_triangle_aux_lsb = 1'b0; - // - //if (slim_bram_xy_addr_value[7:3] == col_index_value) - //calc_triangle_aux_lsb = 1'b1; - //else - //calc_triangle_aux_lsb = 1'b0; - // - end - endfunction - - function calc_rectangle_valid_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - calc_rectangle_valid_lsb = slim_bram_xy_bank_value != BANK_SLIM_EXT; - else - calc_rectangle_valid_lsb = 1'b0; - // - end - endfunction - - function [7:0] calc_square_bitmap_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - // - case (slim_bram_xy_addr_value[2:0]) - 3'b000: calc_square_bitmap_lsb = 8'b00000001; - 3'b001: calc_square_bitmap_lsb = 8'b00000010; - 3'b010: calc_square_bitmap_lsb = 8'b00000100; - 3'b011: calc_square_bitmap_lsb = 8'b00001000; - 3'b100: calc_square_bitmap_lsb = 8'b00010000; - 3'b101: calc_square_bitmap_lsb = 8'b00100000; - 3'b110: calc_square_bitmap_lsb = 8'b01000000; - 3'b111: calc_square_bitmap_lsb = 8'b10000000; - endcase - // - else - calc_square_bitmap_lsb = {8{1'b0}}; - // - end - endfunction - - function [7:0] calc_triangle_bitmap_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - // - case (slim_bram_xy_addr_value[2:0]) - 3'b000: calc_triangle_bitmap_lsb = 8'b00000001; - 3'b001: calc_triangle_bitmap_lsb = 8'b00000010; - 3'b010: calc_triangle_bitmap_lsb = 8'b00000100; - 3'b011: calc_triangle_bitmap_lsb = 8'b00001000; - 3'b100: calc_triangle_bitmap_lsb = 8'b00010000; - 3'b101: calc_triangle_bitmap_lsb = 8'b00100000; - 3'b110: calc_triangle_bitmap_lsb = 8'b01000000; - 3'b111: calc_triangle_bitmap_lsb = 8'b10000000; - endcase - // - else - calc_triangle_bitmap_lsb = {8{1'b0}}; - // - end - endfunction - - function [7:0] calc_rectangle_bitmap_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - begin - // - if ((slim_bram_xy_addr_value[7:3] == col_index_value) && (slim_bram_xy_bank_value != BANK_SLIM_EXT)) - // - case (slim_bram_xy_addr_value[2:0]) - 3'b000: calc_rectangle_bitmap_lsb = 8'b00000001; - 3'b001: calc_rectangle_bitmap_lsb = 8'b00000010; - 3'b010: calc_rectangle_bitmap_lsb = 8'b00000100; - 3'b011: calc_rectangle_bitmap_lsb = 8'b00001000; - 3'b100: calc_rectangle_bitmap_lsb = 8'b00010000; - 3'b101: calc_rectangle_bitmap_lsb = 8'b00100000; - 3'b110: calc_rectangle_bitmap_lsb = 8'b01000000; - 3'b111: calc_rectangle_bitmap_lsb = 8'b10000000; - endcase - // - else - calc_rectangle_bitmap_lsb = {8{1'b0}}; - // - end - endfunction - - function [2:0] calc_square_index_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - // - case (slim_bram_xy_addr_value[2:0]) - 3'b000: calc_square_index_lsb = 3'd0; - 3'b001: calc_square_index_lsb = 3'd1; - 3'b010: calc_square_index_lsb = 3'd2; - 3'b011: calc_square_index_lsb = 3'd3; - 3'b100: calc_square_index_lsb = 3'd4; - 3'b101: calc_square_index_lsb = 3'd5; - 3'b110: calc_square_index_lsb = 3'd6; - 3'b111: calc_square_index_lsb = 3'd7; - endcase - // - else - calc_square_index_lsb = 3'dX; - // - end - endfunction - - function [2:0] calc_triangle_index_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - // - case (slim_bram_xy_addr_value[2:0]) - 3'b000: calc_triangle_index_lsb = 3'd0; - 3'b001: calc_triangle_index_lsb = 3'd1; - 3'b010: calc_triangle_index_lsb = 3'd2; - 3'b011: calc_triangle_index_lsb = 3'd3; - 3'b100: calc_triangle_index_lsb = 3'd4; - 3'b101: calc_triangle_index_lsb = 3'd5; - 3'b110: calc_triangle_index_lsb = 3'd6; - 3'b111: calc_triangle_index_lsb = 3'd7; - endcase - // - else - calc_triangle_index_lsb = 3'dX; - // - end - endfunction - - function [2:0] calc_rectangle_index_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - begin - // - if ((slim_bram_xy_addr_value[7:3] == col_index_value) && (slim_bram_xy_bank_value != BANK_SLIM_EXT)) - // - case (slim_bram_xy_addr_value[2:0]) - 3'b000: calc_rectangle_index_lsb = 3'd0; - 3'b001: calc_rectangle_index_lsb = 3'd1; - 3'b010: calc_rectangle_index_lsb = 3'd2; - 3'b011: calc_rectangle_index_lsb = 3'd3; - 3'b100: calc_rectangle_index_lsb = 3'd4; - 3'b101: calc_rectangle_index_lsb = 3'd5; - 3'b110: calc_rectangle_index_lsb = 3'd6; - 3'b111: calc_rectangle_index_lsb = 3'd7; - endcase - // - else - calc_rectangle_index_lsb = 3'dX; - // - end - endfunction - - function calc_square_purge_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - calc_square_purge_lsb = slim_bram_xy_addr_value[7:3] == col_index_last_value; - else - calc_square_purge_lsb = 1'b0; - // - end - endfunction - - function calc_rectangle_purge_lsb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - begin - // - if (slim_bram_xy_addr_value[7:3] == col_index_value) - calc_rectangle_purge_lsb = slim_bram_xy_addr_value[7:3] == col_index_last_value; - else - calc_rectangle_purge_lsb = 1'b0; - // - end - endfunction - - function calc_square_valid_msb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [7:0] index_last_value; - begin - // - if (slim_bram_xy_addr_value == index_last_value) - calc_square_valid_msb = 1'b1; - else - calc_square_valid_msb = 1'b0; - // - end - endfunction - - function calc_rectangle_valid_msb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - input [7:0] index_last_value; - begin - // - if ((slim_bram_xy_addr_value == 8'd1) && (slim_bram_xy_bank_value == BANK_SLIM_EXT)) - calc_rectangle_valid_msb = 1'b1; - else - calc_rectangle_valid_msb = 1'b0; - // - end - endfunction - - function [7:0] calc_square_bitmap_msb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [7:0] index_last_value; - begin - // - if (slim_bram_xy_addr_value == index_last_value) begin - calc_square_bitmap_msb[7] = col_index_value != col_index_last_value; - calc_square_bitmap_msb[6:0] = 7'b1111111; - end else - calc_square_bitmap_msb[7:0] = 8'b00000000; - // - end - endfunction - - function [7:0] calc_rectangle_bitmap_msb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - input [7:0] index_last_value; - begin - // - if ((slim_bram_xy_addr_value == 8'd1) && (slim_bram_xy_bank_value == BANK_SLIM_EXT)) begin - calc_rectangle_bitmap_msb[7:0] = 8'b11111111; - end else - calc_rectangle_bitmap_msb[7:0] = 8'b00000000; - // - end - endfunction - - function calc_square_purge_msb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [7:0] index_last_value; - begin - // - if (slim_bram_xy_addr_value == index_last_value) - calc_square_purge_msb = col_index_value == col_index_last_value; - else - calc_square_purge_msb = 1'b0; - // - end - endfunction - - function calc_rectangle_purge_msb; - input [4:0] col_index_value; - input [4:0] col_index_last_value; - input [7:0] slim_bram_xy_addr_value; - input [1:0] slim_bram_xy_bank_value; - input [7:0] index_last_value; - begin - // - if ((slim_bram_xy_addr_value == 8'd1) && (slim_bram_xy_bank_value == BANK_SLIM_EXT)) - calc_rectangle_purge_msb = col_index_value == col_index_last_value; - else - calc_rectangle_purge_msb = 1'b0; - // - end - endfunction - - - reg recomb_lsb_ce = 1'b0; - reg recomb_lsb_ce_aux; - reg [ 2:0] recomb_lsb_ce_purge = 3'b000; - wire recomb_lsb_ce_combined = recomb_lsb_ce | recomb_lsb_ce_aux | recomb_lsb_ce_purge[0]; - reg recomb_lsb_clr; - - reg [46:0] recomb_lsb_din; - wire [15:0] recomb_lsb_dout; - - reg recomb_msb_ce = 1'b0; - reg [ 1:0] recomb_msb_ce_purge = 2'b00; - wire recomb_msb_ce_combined = recomb_msb_ce | recomb_msb_ce_purge[0]; - reg recomb_msb_clr; - - reg [46:0] recomb_msb_din; - wire [15:0] recomb_msb_dout; - - modexpng_recombinator_block recomb_x_lsb - ( - .clk (clk), - .ce (recomb_lsb_ce_combined), - .clr (recomb_lsb_clr), - .din (recomb_lsb_din), - .dout (recomb_lsb_dout) - ); - - modexpng_recombinator_block recomb_x_msb - ( - .clk (clk), - .ce (recomb_msb_ce_combined), - .clr (recomb_msb_clr), - .din (recomb_msb_din), - .dout (recomb_msb_dout) - ); - - always @(posedge clk) begin - // - recomb_lsb_ce <= x_valid_latch_lsb; - recomb_lsb_ce_aux <= x_aux_latch_lsb; - recomb_msb_ce <= x_bitmap_latch_msb[0]; - // - if (x_purge_latch_lsb) - recomb_lsb_ce_purge <= 3'b111; - else - recomb_lsb_ce_purge <= {1'b0, recomb_lsb_ce_purge[2:1]}; - // - if (x_purge_latch_msb && x_bitmap_latch_msb[0] && !x_bitmap_latch_msb[1]) - recomb_msb_ce_purge = 2'b11; - else - recomb_msb_ce_purge <= {1'b0, recomb_msb_ce_purge[1]}; - // - end - - - always @(posedge clk) - // - if (ena_x & ena_y) begin - recomb_lsb_clr <= 1'b1; - recomb_msb_clr <= 1'b1; - end else begin - if (recomb_lsb_ce) recomb_lsb_clr <= 1'b0; - if (recomb_msb_ce) recomb_msb_clr <= 1'b0; - end - - always @(posedge clk) - // - if (x_valid_latch_lsb) - recomb_lsb_din <= dsp_x_p_latch[x_index_latch_lsb]; - else if (x_aux_latch_lsb) - recomb_lsb_din <= dsp_x_p_latch[8]; - else - recomb_lsb_din <= {47{1'b0}}; - - always @(posedge clk) - // - if (x_bitmap_latch_msb[0]) - recomb_msb_din <= dsp_x_p_latch[0]; - else - recomb_msb_din <= {47{1'b0}}; - - - always @(posedge clk) - // - 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 - // - xy_valid_lsb_adv [6] <= calc_square_valid_lsb (col_index, col_index_last, slim_bram_xy_addr); - xy_aux_lsb_adv [6] <= 1'b0; - xy_bitmap_lsb_adv[6] <= calc_square_bitmap_lsb(col_index, col_index_last, slim_bram_xy_addr); - xy_index_lsb_adv [6] <= calc_square_index_lsb (col_index, col_index_last, slim_bram_xy_addr); - xy_purge_lsb_adv [6] <= calc_square_purge_lsb (col_index, col_index_last, slim_bram_xy_addr); - // - xy_valid_msb_adv [6] <= calc_square_valid_msb (col_index, col_index_last, slim_bram_xy_addr, index_last); - xy_bitmap_msb_adv[6] <= calc_square_bitmap_msb(col_index, col_index_last, slim_bram_xy_addr, index_last); - xy_purge_msb_adv [6] <= calc_square_purge_msb (col_index, col_index_last, slim_bram_xy_addr, index_last); - // - 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 - // - xy_valid_lsb_adv [6] <= calc_triangle_valid_lsb (col_index, col_index_last, slim_bram_xy_addr); /// bank - xy_aux_lsb_adv [6] <= calc_triangle_aux_lsb (col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank); - xy_bitmap_lsb_adv[6] <= calc_triangle_bitmap_lsb(col_index, col_index_last, slim_bram_xy_addr); //! bank - xy_index_lsb_adv [6] <= calc_triangle_index_lsb (col_index, col_index_last, slim_bram_xy_addr); // ! bank!!! - xy_purge_lsb_adv [6] <= 1'b0; - // - xy_valid_msb_adv [6] <= 1'b0; - xy_bitmap_msb_adv[6] <= {8{1'b0}}; - xy_purge_msb_adv [6] <= 1'b0; - // - 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 - // - xy_valid_lsb_adv [6] <= calc_rectangle_valid_lsb (col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank); - xy_aux_lsb_adv [6] <= 1'b0; - xy_bitmap_lsb_adv[6] <= calc_rectangle_bitmap_lsb(col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank); - xy_index_lsb_adv [6] <= calc_rectangle_index_lsb (col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank); - xy_purge_lsb_adv [6] <= calc_rectangle_purge_lsb (col_index, col_index_last, slim_bram_xy_addr); - // - xy_valid_msb_adv [6] <= calc_rectangle_valid_msb (col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank, index_last); - xy_bitmap_msb_adv[6] <= calc_rectangle_bitmap_msb(col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank, index_last); - xy_purge_msb_adv [6] <= calc_rectangle_purge_msb (col_index, col_index_last, slim_bram_xy_addr, slim_bram_xy_bank, index_last); - // - end - // - default: begin - // - xy_valid_lsb_adv [6] <= 1'b0; - xy_aux_lsb_adv [6] <= 1'b0; - xy_bitmap_lsb_adv[6] <= {8{1'b0}}; - xy_index_lsb_adv [6] <= 3'dX; - xy_purge_lsb_adv [6] <= 1'b0; - // - xy_valid_msb_adv [6] <= 1'b0; - xy_bitmap_msb_adv[6] <= {8{1'b0}}; - xy_purge_msb_adv [6] <= 1'b0; - // - end - // - endcase - - - always @(posedge clk) begin - // - {y_valid_lsb, x_valid_lsb} <= {2{xy_valid_lsb_adv [1]}}; - {y_aux_lsb, x_aux_lsb} <= {2{xy_aux_lsb_adv [1]}}; - {y_bitmap_lsb, x_bitmap_lsb} <= {2{xy_bitmap_lsb_adv[1]}}; - {y_index_lsb, x_index_lsb} <= {2{xy_index_lsb_adv [1]}}; - {y_purge_lsb, x_purge_lsb} <= {2{xy_purge_lsb_adv [1]}}; - // - {y_valid_latch_lsb, x_valid_latch_lsb} <= {y_valid_lsb, x_valid_lsb}; - {y_aux_latch_lsb, x_aux_latch_lsb} <= {y_aux_lsb, x_aux_lsb}; - {y_bitmap_latch_lsb, x_bitmap_latch_lsb} <= {y_bitmap_lsb, x_bitmap_lsb}; - {y_index_latch_lsb, x_index_latch_lsb} <= {y_index_lsb, x_index_lsb}; - {y_purge_latch_lsb, x_purge_latch_lsb} <= {y_purge_lsb, x_purge_lsb}; - // - {y_valid_msb, x_valid_msb} <= {2{xy_valid_msb_adv[1]}}; - {y_bitmap_msb, x_bitmap_msb} <= {2{xy_bitmap_msb_adv[1]}}; - {y_purge_msb, x_purge_msb} <= {2{xy_purge_msb_adv[1]}}; - // - if (x_valid_msb) begin - x_bitmap_latch_msb <= x_bitmap_msb; - x_purge_latch_msb <= x_purge_msb; - end else begin - x_bitmap_latch_msb <= {1'b0, x_bitmap_latch_msb[7:1]}; - end - // - // - for (i=1; i<6; i=i+1) begin - xy_valid_lsb_adv [i] <= xy_valid_lsb_adv [i+1]; - xy_aux_lsb_adv [i] <= xy_aux_lsb_adv [i+1]; - xy_bitmap_lsb_adv[i] <= xy_bitmap_lsb_adv[i+1]; - xy_index_lsb_adv [i] <= xy_index_lsb_adv [i+1]; - xy_purge_lsb_adv [i] <= xy_purge_lsb_adv [i+1]; - // - xy_valid_msb_adv [i] <= xy_valid_msb_adv [i+1]; - xy_bitmap_msb_adv[i] <= xy_bitmap_msb_adv[i+1]; - xy_purge_msb_adv [i] <= xy_purge_msb_adv [i+1]; - end - // - end - - always @(posedge clk) - // - if (x_bitmap_latch_msb[1]) // only shift 7 times - // - for (i=0; i<8; i=i+1) - if (i < 7) - dsp_x_p_latch[i] <= dsp_x_p_latch[i+1]; - else - dsp_x_p_latch[i] <= {47{1'bX}}; - // - else if (dsp_x_ce_p_dly1) begin - // - for (i=0; i<8; i=i+1) - // - if (x_bitmap_lsb[i]) - dsp_x_p_latch[i] <= dsp_x_p_split[i]; - else if (x_valid_msb && x_bitmap_msb[i]) - dsp_x_p_latch[i] <= dsp_x_p_split[i]; - // - if (x_aux_lsb) - dsp_x_p_latch[8] <= dsp_x_p_split[8]; - // - end - - reg recomb_x_lsb_dout_valid = 1'b0; - reg recomb_x_msb_dout_valid = 1'b0; - - always @(posedge clk) begin - recomb_x_lsb_dout_valid <= recomb_lsb_ce_combined; - recomb_x_msb_dout_valid <= recomb_msb_ce_combined; - end - - - reg [ 2:0] fat_bram_xy_bank_reg; - reg [ 7:0] fat_bram_xy_addr_reg; - reg [17:0] fat_bram_x_dout_reg; - reg [17:0] fat_bram_y_dout_reg; - reg fat_bram_xy_dout_valid_reg = 1'b0; - - reg [ 2:0] slim_bram_xy_bank_reg; - reg [ 7:0] slim_bram_xy_addr_reg; - reg [17:0] slim_bram_x_dout_reg; - reg [17:0] slim_bram_y_dout_reg; - reg slim_bram_xy_dout_valid_reg = 1'b0; - - reg [ 7:0] bram_xy_cnt_lsb; - reg [ 7:0] bram_xy_cnt_msb; - - reg bram_xy_cnt_lsb_wrapped; - reg bram_xy_cnt_msb_wrapped; - - reg [15:0] recomb_msb_dout_carry_0; - reg [15:0] recomb_msb_dout_carry_1; - - reg [15:0] recomb_msb_dout_delay_0; - reg [15:0] recomb_msb_dout_delay_1; - reg [15:0] recomb_msb_dout_delay_2; - - reg [ 7:0] recomb_msb_cnt_delay_0 = 8'd0; - reg [ 7:0] recomb_msb_cnt_delay_1 = 8'd0; - reg [ 7:0] recomb_msb_cnt_delay_2 = 8'd0; - - reg recomb_msb_flag_delay_0; - reg recomb_msb_flag_delay_1; - reg recomb_msb_flag_delay_2; - - assign rcmb_fat_bram_xy_bank = fat_bram_xy_bank_reg; - assign rcmb_fat_bram_xy_addr = fat_bram_xy_addr_reg; - assign rcmb_fat_bram_x_dout = fat_bram_x_dout_reg; - assign rcmb_fat_bram_y_dout = fat_bram_y_dout_reg; - assign rcmb_fat_bram_xy_dout_valid = fat_bram_xy_dout_valid_reg; - - assign rcmb_slim_bram_xy_bank = slim_bram_xy_bank_reg; - assign rcmb_slim_bram_xy_addr = slim_bram_xy_addr_reg; - assign rcmb_slim_bram_x_dout = slim_bram_x_dout_reg; - assign rcmb_slim_bram_y_dout = slim_bram_y_dout_reg; - assign rcmb_slim_bram_xy_dout_valid = slim_bram_xy_dout_valid_reg; - - reg rdy_reg = 1'b1; - reg rdy_adv = 1'b1; - - assign rdy = rdy_reg; - - - always @(posedge clk) - // - if (ena_x & ena_y) - rdy_reg <= 1'b0; - else - rdy_reg <= rdy_adv; - - - task advance_recomb_msb_dout_delay; - input [15:0] dout; - input [ 7:0] cnt; - input flag; - begin - // - recomb_msb_dout_delay_0 <= dout; - recomb_msb_dout_delay_1 <= recomb_msb_dout_delay_0; - recomb_msb_dout_delay_2 <= recomb_msb_dout_delay_1; - // - recomb_msb_cnt_delay_0 <= cnt; - recomb_msb_cnt_delay_1 <= recomb_msb_cnt_delay_0; - recomb_msb_cnt_delay_2 <= recomb_msb_cnt_delay_1; - // - recomb_msb_flag_delay_0 <= flag; - recomb_msb_flag_delay_1 <= recomb_msb_flag_delay_0; - recomb_msb_flag_delay_2 <= recomb_msb_flag_delay_1; - // - end - endtask - - task shift_recomb_msb_dout_carry; - input [15:0] dout; - begin - recomb_msb_dout_carry_0 <= dout; - recomb_msb_dout_carry_1 <= recomb_msb_dout_carry_0; - end - endtask - - task _update_fat_bram_regs; - input [ 2:0] bank; - input [ 7:0] addr; - input [17:0] dout_x; - input [17:0] dout_y; - input valid; - begin - fat_bram_xy_bank_reg <= bank; - fat_bram_xy_addr_reg <= addr; - fat_bram_x_dout_reg <= dout_x; - fat_bram_y_dout_reg <= dout_y; - fat_bram_xy_dout_valid_reg <= valid; - end - endtask - - task _update_slim_bram_regs; - input [ 2:0] bank; - input [ 7:0] addr; - input [17:0] dout_x; - input [17:0] dout_y; - input valid; - begin - slim_bram_xy_bank_reg <= bank; - slim_bram_xy_addr_reg <= addr; - slim_bram_x_dout_reg <= dout_x; - slim_bram_y_dout_reg <= dout_y; - slim_bram_xy_dout_valid_reg <= valid; - end - endtask - - task set_fat_bram_regs; - input [ 2:0] bank; - input [ 7:0] addr; - input [17:0] dout_x; - input [17:0] dout_y; - begin - _update_fat_bram_regs(bank, addr, dout_x, dout_y, 1'b1); - end - endtask - - task set_slim_bram_regs; - input [ 2:0] bank; - input [ 7:0] addr; - input [17:0] dout_x; - input [17:0] dout_y; - begin - _update_slim_bram_regs(bank, addr, dout_x, dout_y, 1'b1); - end - endtask - - task clear_fat_bram_regs; - begin - _update_fat_bram_regs(3'bXXX, 8'hXX, {18{1'bX}}, {18{1'bX}}, 1'b0); - end - endtask - - task clear_slim_bram_regs; - begin - _update_slim_bram_regs(3'bXXX, 8'hXX, {18{1'bX}}, {18{1'bX}}, 1'b0); - end - endtask - - task _set_bram_cnt_lsb; - input [7:0] cnt; - input wrapped; - begin - bram_xy_cnt_lsb <= cnt; - bram_xy_cnt_lsb_wrapped <= wrapped; - end - endtask - - task _set_bram_cnt_msb; - input [7:0] cnt; - input wrapped; - begin - bram_xy_cnt_msb <= cnt; - bram_xy_cnt_msb_wrapped <= wrapped; - end - endtask - - task inc_bram_cnt_lsb; - begin - if (bram_xy_cnt_lsb == index_last) - _set_bram_cnt_lsb(8'd0, 1'b1); - else - _set_bram_cnt_lsb(bram_xy_cnt_lsb + 1'b1, bram_xy_cnt_lsb_wrapped); - end - endtask - - task inc_bram_cnt_msb; - begin - if (bram_xy_cnt_msb == index_last) - _set_bram_cnt_msb(8'd0, 1'b1); - else - _set_bram_cnt_msb(bram_xy_cnt_msb + 1'b1, bram_xy_cnt_msb_wrapped); - end - endtask - - task clr_bram_cnt_lsb; - begin - _set_bram_cnt_lsb(8'd0, 1'b0); - end - endtask - - task clr_bram_cnt_msb; - begin - _set_bram_cnt_msb(8'd0, 1'b0); - end - endtask - - - - - - wire [1:0] rcmb_xy_dout_valid = {recomb_x_msb_dout_valid, recomb_x_lsb_dout_valid}; - - always @(posedge clk) - // - if (ena_x & ena_y) begin - clr_bram_cnt_lsb(); - clr_bram_cnt_msb(); - end else begin // if not ready??? - // - case (rcmb_mode) - 2'd1: recombine_square(); - 2'd2: recombine_triangle(); - 2'd3: recombine_rectangle(); - endcase - // - end - - task recombine_square; - // - begin - // - case (rcmb_xy_dout_valid) - // - 2'b01: inc_bram_cnt_lsb(); - 2'b10: inc_bram_cnt_msb(); - 2'b11: begin - inc_bram_cnt_lsb(); - inc_bram_cnt_msb(); - end - // - endcase - // - case (rcmb_xy_dout_valid) - // - 2'b00: if (recomb_msb_flag_delay_2) set_fat_bram_regs(BANK_FAT_ABH, recomb_msb_cnt_delay_2, {2'b00, recomb_msb_dout_delay_2}, {18{1'bX}}); - else clear_fat_bram_regs(); - 2'b01: set_fat_bram_regs(BANK_FAT_ABL, bram_xy_cnt_lsb, {2'b00, recomb_lsb_dout}, {18{1'bX}}); - 2'b10: if (bram_xy_cnt_msb < 8'd2) clear_fat_bram_regs(); - else set_fat_bram_regs(BANK_FAT_ABH, bram_xy_cnt_msb, {2'b00, recomb_msb_dout}, {18{1'bX}}); - 2'b11: if (bram_xy_cnt_lsb_wrapped) set_fat_bram_regs(BANK_FAT_ABH, bram_xy_cnt_lsb, {1'b0, {1'b0, recomb_lsb_dout} + {1'b0, recomb_msb_dout_carry_1}}, {18{1'bX}}); - else set_fat_bram_regs(BANK_FAT_ABL, bram_xy_cnt_lsb, {2'b00, recomb_lsb_dout}, {18{1'bX}}); - default: clear_fat_bram_regs(); // DEBUG!!! - // - endcase - // - case (rcmb_xy_dout_valid) - // - 2'b00: if (recomb_msb_flag_delay_2) advance_recomb_msb_dout_delay(16'hXXXX, 8'd0, 1'b0); - 2'b10: if (bram_xy_cnt_msb < 8'd2) shift_recomb_msb_dout_carry(recomb_msb_dout); -// // - 2'b11: begin advance_recomb_msb_dout_delay(recomb_msb_dout, bram_xy_cnt_msb, 1'b1); - if (bram_xy_cnt_lsb_wrapped) shift_recomb_msb_dout_carry({16{1'bX}}); - end - // - endcase - // - end - // - endtask - - - task recombine_triangle; - // - begin - // - case (rcmb_xy_dout_valid) - // - 2'b01: inc_bram_cnt_lsb(); - // - endcase - // - case (rcmb_xy_dout_valid) - // - 2'b00: clear_slim_bram_regs(); - 2'b01: if (!bram_xy_cnt_lsb_wrapped) set_slim_bram_regs(BANK_SLIM_Q, bram_xy_cnt_lsb, {2'b00, recomb_lsb_dout}, {18{1'bX}}); - else set_slim_bram_regs(BANK_SLIM_EXT, 8'd1, {2'b00, recomb_lsb_dout}, {18{1'bX}}); - 2'b10: clear_slim_bram_regs(); - 2'b11: clear_slim_bram_regs(); - // - endcase - // - end - // - endtask - - - task recombine_rectangle; - // - begin - // - case (rcmb_xy_dout_valid) - // - 2'b01: inc_bram_cnt_lsb(); - 2'b10: inc_bram_cnt_msb(); - 2'b11: begin - inc_bram_cnt_lsb(); - inc_bram_cnt_msb(); - end - // - endcase -// // - case (rcmb_xy_dout_valid) -// // - 2'b00: if (recomb_msb_flag_delay_2) set_fat_bram_regs(BANK_FAT_MH, recomb_msb_cnt_delay_2, {2'b00, recomb_msb_dout_delay_2}, {18{1'bX}}); - else clear_fat_bram_regs(); - 2'b01: set_fat_bram_regs(BANK_FAT_ML, bram_xy_cnt_lsb, {2'b00, recomb_lsb_dout}, {18{1'bX}}); - 2'b10: if (!bram_xy_cnt_msb_wrapped) begin - if (bram_xy_cnt_msb < 8'd2) clear_fat_bram_regs(); - else set_fat_bram_regs(BANK_FAT_MH, bram_xy_cnt_msb, {2'b00, recomb_msb_dout}, {18{1'bX}}); - end else - set_fat_bram_regs(BANK_FAT_EXT, 8'd0, {2'b00, recomb_msb_dout}, {18{1'bX}}); - - 2'b11: set_fat_bram_regs(BANK_FAT_MH, bram_xy_cnt_lsb, {1'b0, {1'b0, recomb_lsb_dout} + {1'b0, recomb_msb_dout_carry_1}}, {18{1'bX}}); -// // - endcase -// // - case (rcmb_xy_dout_valid) -// // - 2'b00: if (recomb_msb_flag_delay_2) advance_recomb_msb_dout_delay(16'hXXXX, 8'd0, 1'b0); - 2'b10: begin - if ((bram_xy_cnt_msb < 8'd2) && !bram_xy_cnt_msb_wrapped) shift_recomb_msb_dout_carry(recomb_msb_dout); - if (bram_xy_cnt_msb_wrapped) advance_recomb_msb_dout_delay(16'hXXXX, 8'd0, 1'b0); - end -// // - 2'b11: begin advance_recomb_msb_dout_delay(recomb_msb_dout, bram_xy_cnt_msb, 1'b1); - shift_recomb_msb_dout_carry({16{1'bX}}); - end -// // - endcase - // - end - // - endtask - - - always @(posedge clk) - // - if (ena_x & ena_y) begin - rdy_adv <= 1'b0; - end else if (!rdy_reg) begin - // - case (rcmb_mode) - // - 2'd1: case (rcmb_xy_dout_valid) - // - 2'b00: begin - // - if (recomb_msb_flag_delay_2) begin - // - rdy_adv <= ~recomb_msb_flag_delay_1; - // - end - // - end - // - endcase - // - 2'd2: case (rcmb_xy_dout_valid) - // - 2'b01: rdy_adv <= bram_xy_cnt_lsb_wrapped; // - // - endcase - // - 2'd3: case (rcmb_xy_dout_valid) - // - 2'b00: begin - // - if (recomb_msb_flag_delay_2) begin - // - rdy_adv <= ~recomb_msb_flag_delay_1; - // - end - // - end - // - endcase - // - endcase - // - end - - - - // add ready for mode=3 -endmodule |