diff options
Diffstat (limited to 'bench/tb_curve_doubler_256.v')
| -rw-r--r-- | bench/tb_curve_doubler_256.v | 716 |
1 files changed, 358 insertions, 358 deletions
diff --git a/bench/tb_curve_doubler_256.v b/bench/tb_curve_doubler_256.v index c7b7541..c7a1c0f 100644 --- a/bench/tb_curve_doubler_256.v +++ b/bench/tb_curve_doubler_256.v @@ -43,365 +43,365 @@ module tb_curve_doubler_256; - // - // Test Vectors - // - localparam [255:0] PX_1 = 256'h6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296; - localparam [255:0] PY_1 = 256'h4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5; - localparam [255:0] PZ_1 = 256'h0000000000000000000000000000000000000000000000000000000000000001;
-
- localparam [255:0] RX_1 = 256'h9a978f59acd1b5ad570e7d52dcfcde43804b42274f61ddcf1e7d848391d6c70f; - localparam [255:0] RY_1 = 256'h4126885e7f786af905338238e5346d5fe77fc46388668bd0fd59be3190d2f5d1; - localparam [255:0] RZ_1 = 256'h9fc685c5fc34ff371dcfd694f81f3c2c579c66aed662bd9d976c80d06f7ea3ea;
-
- localparam [255:0] PX_2 = 256'h0ec88440c8b00a9e572bf1bceb7d0c5906bd65990a9b7081130bd72e2c136ca0; - localparam [255:0] PY_2 = 256'hc0bc77e1339e899101f8e8eccf79c3f7f4bbdd1bf96f6446199bd423026a60d6; - localparam [255:0] PZ_2 = 256'hdd27cb52a31d1f6e041accf1103de05ba0a5edd74b738d51fe3397de0e3fc306;
-
- localparam [255:0] RX_2 = 256'he6afae63e774df21244609cb4c35d17d28b36b8b9fb7c58929af247f34ac72f9; - localparam [255:0] RY_2 = 256'h061076db7a5745adc90b2e9eebe0ad6482309690f50b60835c265cf83a1b34eb; - localparam [255:0] RZ_2 = 256'h1b6bfd04f2a41d68e85423655db1142d97ebaec0c67c450408f427e35c4f054f;
-
- localparam [255:0] PX_3 = 256'hb0f824c88ec62df89912ca9ffbcbbb4ffb4d80f8a7d7b4a992273261a2f7be7f; - localparam [255:0] PY_3 = 256'h403e34c78c2b816fce2b1f8d73cfeef28113b8de8bda4a447d17b619bef73705; - localparam [255:0] PZ_3 = 256'h0e3e81bb8e954f3164ae54a6cffa7fcc9631dfddee55fac61e46415f1f5fe5e2;
-
- localparam [255:0] RX_3 = 256'hd4e725920c88cc2f57847a315f3b6c180abb278b8fa2a47da3d1a191a8c29e19; - localparam [255:0] RY_3 = 256'ha798ad8dbd66c98b53414ab1d04b0f871929a90fea996c88b96d9d68eb8eb0dc; - localparam [255:0] RZ_3 = 256'ha7ead72c01294eaf2899bb6b84f7d26417e6758e3db29f3b5c2ca8e9911067f5;
-
- localparam [255:0] PX_4 = 256'hXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX; - localparam [255:0] PY_4 = 256'hXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX; - localparam [255:0] PZ_4 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
-
- localparam [255:0] RX_4 = 256'h0000000000000000000000000000000000000000000000000000000000000001; - localparam [255:0] RY_4 = 256'h0000000000000000000000000000000000000000000000000000000000000001; - localparam [255:0] RZ_4 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
-
- localparam [255:0] Q = 256'hffffffff00000001000000000000000000000000ffffffffffffffffffffffff;
- -
-
- //
- // TODO: Test special cases!
- //
-
-
- // - // Core Parameters - // - localparam WORD_COUNTER_WIDTH = 3; - localparam OPERAND_NUM_WORDS = 8;
- - - // - // Clock (100 MHz) - // - reg clk = 1'b0; - always #5 clk = ~clk; - - - // - // Inputs, Outputs - // - reg rst_n; - reg ena;
- wire rdy; - - - // - // Buffers (PX, PY, PZ, RX, RY, RZ, Q) - // - wire [WORD_COUNTER_WIDTH-1:0] core_px_addr; - wire [WORD_COUNTER_WIDTH-1:0] core_py_addr;
- wire [WORD_COUNTER_WIDTH-1:0] core_pz_addr;
-
- wire [WORD_COUNTER_WIDTH-1:0] core_rx_addr; - wire [WORD_COUNTER_WIDTH-1:0] core_ry_addr;
- wire [WORD_COUNTER_WIDTH-1:0] core_rz_addr;
-
- wire [WORD_COUNTER_WIDTH-1:0] core_q_addr;
-
- wire core_rx_wren;
- wire core_ry_wren;
- wire core_rz_wren;
-
- wire [ 32-1:0] core_px_data; - wire [ 32-1:0] core_py_data;
- wire [ 32-1:0] core_pz_data;
-
- wire [ 32-1:0] core_rx_data_wr; - wire [ 32-1:0] core_ry_data_wr;
- wire [ 32-1:0] core_rz_data_wr;
-
- wire [ 32-1:0] core_rx_data_rd; - wire [ 32-1:0] core_ry_data_rd;
- wire [ 32-1:0] core_rz_data_rd;
-
- wire [ 32-1:0] core_q_data;
-
- reg [WORD_COUNTER_WIDTH-1:0] tb_xyzq_addr; - reg tb_xyzq_wren; - - reg [ 31:0] tb_px_data; - reg [ 31:0] tb_py_data; - reg [ 31:0] tb_pz_data; - wire [ 31:0] tb_rx_data; - wire [ 31:0] tb_ry_data; - wire [ 31:0] tb_rz_data;
- reg [ 31:0] tb_q_data;
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_px - ( .clk(clk), - .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_px_data), .a_out(), - .b_addr(core_px_addr), .b_out(core_px_data) - );
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_py - ( .clk(clk), - .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_py_data), .a_out(), - .b_addr(core_py_addr), .b_out(core_py_data) - );
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_pz - ( .clk(clk), - .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_pz_data), .a_out(), - .b_addr(core_pz_addr), .b_out(core_pz_data) - );
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_q - ( .clk(clk), - .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_q_data), .a_out(), - .b_addr(core_q_addr), .b_out(core_q_data) - );
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_rx - ( .clk(clk), - .a_addr(core_rx_addr), .a_wr(core_rx_wren), .a_in(core_rx_data_wr), .a_out(core_rx_data_rd), - .b_addr(tb_xyzq_addr), .b_out(tb_rx_data) - );
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_ry - ( .clk(clk), - .a_addr(core_ry_addr), .a_wr(core_ry_wren), .a_in(core_ry_data_wr), .a_out(core_ry_data_rd), - .b_addr(tb_xyzq_addr), .b_out(tb_ry_data) - );
-
- bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_rz - ( .clk(clk), - .a_addr(core_rz_addr), .a_wr(core_rz_wren), .a_in(core_rz_data_wr), .a_out(core_rz_data_rd), - .b_addr(tb_xyzq_addr), .b_out(tb_rz_data) - );
-
-
- //
- // Opcode
- //
- wire [ 5: 0] dbl_uop_addr; - wire [19: 0] dbl_uop;
-
- uop_dbl_rom dbl_rom - ( - .clk (clk), - .addr (dbl_uop_addr), - .data (dbl_uop) - );
-
- - // - // UUT - // - curve_dbl_add_256 uut - ( - .clk (clk), - .rst_n (rst_n), - - .ena (ena), - .rdy (rdy),
- - .uop_addr (dbl_uop_addr), - .uop (dbl_uop),
-
- .px_addr (core_px_addr),
- .py_addr (core_py_addr),
- .pz_addr (core_pz_addr),
- .rx_addr (core_rx_addr),
- .ry_addr (core_ry_addr),
- .rz_addr (core_rz_addr),
- .q_addr (core_q_addr),
-
- .rx_wren (core_rx_wren),
- .ry_wren (core_ry_wren),
- .rz_wren (core_rz_wren),
-
- .px_din (core_px_data),
- .py_din (core_py_data),
- .pz_din (core_pz_data),
- .rx_din (core_rx_data_rd),
- .ry_din (core_ry_data_rd),
- .rz_din (core_rz_data_rd),
- .rx_dout (core_rx_data_wr),
- .ry_dout (core_ry_data_wr),
- .rz_dout (core_rz_data_wr),
- .q_din (core_q_data) + // + // Test Vectors + // + localparam [255:0] PX_1 = 256'h6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296; + localparam [255:0] PY_1 = 256'h4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5; + localparam [255:0] PZ_1 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + + localparam [255:0] RX_1 = 256'h9a978f59acd1b5ad570e7d52dcfcde43804b42274f61ddcf1e7d848391d6c70f; + localparam [255:0] RY_1 = 256'h4126885e7f786af905338238e5346d5fe77fc46388668bd0fd59be3190d2f5d1; + localparam [255:0] RZ_1 = 256'h9fc685c5fc34ff371dcfd694f81f3c2c579c66aed662bd9d976c80d06f7ea3ea; + + localparam [255:0] PX_2 = 256'h0ec88440c8b00a9e572bf1bceb7d0c5906bd65990a9b7081130bd72e2c136ca0; + localparam [255:0] PY_2 = 256'hc0bc77e1339e899101f8e8eccf79c3f7f4bbdd1bf96f6446199bd423026a60d6; + localparam [255:0] PZ_2 = 256'hdd27cb52a31d1f6e041accf1103de05ba0a5edd74b738d51fe3397de0e3fc306; + + localparam [255:0] RX_2 = 256'he6afae63e774df21244609cb4c35d17d28b36b8b9fb7c58929af247f34ac72f9; + localparam [255:0] RY_2 = 256'h061076db7a5745adc90b2e9eebe0ad6482309690f50b60835c265cf83a1b34eb; + localparam [255:0] RZ_2 = 256'h1b6bfd04f2a41d68e85423655db1142d97ebaec0c67c450408f427e35c4f054f; + + localparam [255:0] PX_3 = 256'hb0f824c88ec62df89912ca9ffbcbbb4ffb4d80f8a7d7b4a992273261a2f7be7f; + localparam [255:0] PY_3 = 256'h403e34c78c2b816fce2b1f8d73cfeef28113b8de8bda4a447d17b619bef73705; + localparam [255:0] PZ_3 = 256'h0e3e81bb8e954f3164ae54a6cffa7fcc9631dfddee55fac61e46415f1f5fe5e2; + + localparam [255:0] RX_3 = 256'hd4e725920c88cc2f57847a315f3b6c180abb278b8fa2a47da3d1a191a8c29e19; + localparam [255:0] RY_3 = 256'ha798ad8dbd66c98b53414ab1d04b0f871929a90fea996c88b96d9d68eb8eb0dc; + localparam [255:0] RZ_3 = 256'ha7ead72c01294eaf2899bb6b84f7d26417e6758e3db29f3b5c2ca8e9911067f5; + + localparam [255:0] PX_4 = 256'hXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX; + localparam [255:0] PY_4 = 256'hXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX; + localparam [255:0] PZ_4 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + localparam [255:0] RX_4 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + localparam [255:0] RY_4 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + localparam [255:0] RZ_4 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + localparam [255:0] Q = 256'hffffffff00000001000000000000000000000000ffffffffffffffffffffffff; + + + + // + // TODO: Test special cases! + // + + + // + // Core Parameters + // + localparam WORD_COUNTER_WIDTH = 3; + localparam OPERAND_NUM_WORDS = 8; + + + // + // Clock (100 MHz) + // + reg clk = 1'b0; + always #5 clk = ~clk; + + + // + // Inputs, Outputs + // + reg rst_n; + reg ena; + wire rdy; + + + // + // Buffers (PX, PY, PZ, RX, RY, RZ, Q) + // + wire [WORD_COUNTER_WIDTH-1:0] core_px_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_py_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_pz_addr; + + wire [WORD_COUNTER_WIDTH-1:0] core_rx_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_ry_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_rz_addr; + + wire [WORD_COUNTER_WIDTH-1:0] core_q_addr; + + wire core_rx_wren; + wire core_ry_wren; + wire core_rz_wren; + + wire [ 32-1:0] core_px_data; + wire [ 32-1:0] core_py_data; + wire [ 32-1:0] core_pz_data; + + wire [ 32-1:0] core_rx_data_wr; + wire [ 32-1:0] core_ry_data_wr; + wire [ 32-1:0] core_rz_data_wr; + + wire [ 32-1:0] core_rx_data_rd; + wire [ 32-1:0] core_ry_data_rd; + wire [ 32-1:0] core_rz_data_rd; + + wire [ 32-1:0] core_q_data; + + reg [WORD_COUNTER_WIDTH-1:0] tb_xyzq_addr; + reg tb_xyzq_wren; + + reg [ 31:0] tb_px_data; + reg [ 31:0] tb_py_data; + reg [ 31:0] tb_pz_data; + wire [ 31:0] tb_rx_data; + wire [ 31:0] tb_ry_data; + wire [ 31:0] tb_rz_data; + reg [ 31:0] tb_q_data; + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_px + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_px_data), .a_out(), + .b_addr(core_px_addr), .b_out(core_px_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_py + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_py_data), .a_out(), + .b_addr(core_py_addr), .b_out(core_py_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_pz + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_pz_data), .a_out(), + .b_addr(core_pz_addr), .b_out(core_pz_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_q + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_q_data), .a_out(), + .b_addr(core_q_addr), .b_out(core_q_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_rx + ( .clk(clk), + .a_addr(core_rx_addr), .a_wr(core_rx_wren), .a_in(core_rx_data_wr), .a_out(core_rx_data_rd), + .b_addr(tb_xyzq_addr), .b_out(tb_rx_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_ry + ( .clk(clk), + .a_addr(core_ry_addr), .a_wr(core_ry_wren), .a_in(core_ry_data_wr), .a_out(core_ry_data_rd), + .b_addr(tb_xyzq_addr), .b_out(tb_ry_data) ); - - - // - // Testbench Routine - // - reg ok = 1; - initial begin - - /* initialize control inputs */ - rst_n = 0; - ena = 0; - - /* wait for some time */ - #200; - - /* de-assert reset */ - rst_n = 1; - - /* wait for some time */ - #100; - - /* run tests */ - test_curve_doubler(PX_1, PY_1, PZ_1, RX_1, RY_1, RZ_1); - test_curve_doubler(PX_2, PY_2, PZ_2, RX_2, RY_2, RZ_2);
- test_curve_doubler(PX_3, PY_3, PZ_3, RX_3, RY_3, RZ_3);
- test_curve_doubler(PX_4, PY_4, PZ_4, RX_4, RY_4, RZ_4); - - /* print result */ - if (ok) $display("tb_curve_doubler_256: SUCCESS"); - else $display("tb_curve_doubler_256: FAILURE"); - // -// $finish; - // - end - - - // - // Test Task - // - reg t_ok;
-
- integer w;
- - task test_curve_doubler; - - input [255:0] px; - input [255:0] py; - input [255:0] pz;
-
- input [255:0] rx; - input [255:0] ry; - input [255:0] rz; -
- reg [255:0] px_shreg;
- reg [255:0] py_shreg;
- reg [255:0] pz_shreg;
-
- reg [255:0] rx_shreg;
- reg [255:0] ry_shreg;
- reg [255:0] rz_shreg;
-
- reg [255:0] q_shreg;
- - begin - - /* start filling memories */
- tb_xyzq_wren = 1;
-
- /* initialize shift registers */ - px_shreg = px; - py_shreg = py;
- pz_shreg = pz;
- q_shreg = Q; -
- /* write all the words */ - for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin - - /* set addresses */ - tb_xyzq_addr = w[WORD_COUNTER_WIDTH-1:0]; - - /* set data words */ - tb_px_data = px_shreg[31:0]; - tb_py_data = py_shreg[31:0]; - tb_pz_data = pz_shreg[31:0];
- tb_q_data = q_shreg[31:0]; - - /* shift inputs */ - px_shreg = {{32{1'bX}}, px_shreg[255:32]}; - py_shreg = {{32{1'bX}}, py_shreg[255:32]}; - pz_shreg = {{32{1'bX}}, pz_shreg[255:32]};
- q_shreg = {{32{1'bX}}, q_shreg[255:32]}; - - /* wait for 1 clock tick */ - #10; - - end
-
- /* wipe addresses */ - tb_xyzq_addr = {WORD_COUNTER_WIDTH{1'bX}}; - - /* wipe data words */ - tb_px_data = {32{1'bX}}; - tb_py_data = {32{1'bX}}; - tb_pz_data = {32{1'bX}};
- tb_q_data = {32{1'bX}}; - - /* stop filling memories */ - tb_xyzq_wren = 0;
- - /* start operation */ - ena = 1; - - /* clear flag */ - #10 ena = 0; - - /* wait for operation to complete */ - while (!rdy) #10; -
- /* read result */ - for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin - - /* set address */ - tb_xyzq_addr = w[WORD_COUNTER_WIDTH-1:0]; - - /* wait for 1 clock tick */ - #10; - - /* store data word */ - rx_shreg = {tb_rx_data, rx_shreg[255:32]};
- ry_shreg = {tb_ry_data, ry_shreg[255:32]};
- rz_shreg = {tb_rz_data, rz_shreg[255:32]}; - - end
- - /* compare */ - t_ok = (rx_shreg == rx) &&
- (ry_shreg == ry) &&
- (rz_shreg == rz); - - /* display results */ - $display("test_curve_doubler(): %s", t_ok ? "OK" : "ERROR"); - - /* update global flag */ - ok = ok && t_ok; - - end - - endtask - - + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_rz + ( .clk(clk), + .a_addr(core_rz_addr), .a_wr(core_rz_wren), .a_in(core_rz_data_wr), .a_out(core_rz_data_rd), + .b_addr(tb_xyzq_addr), .b_out(tb_rz_data) + ); + + + // + // Opcode + // + wire [ 5: 0] dbl_uop_addr; + wire [19: 0] dbl_uop; + + uop_dbl_rom dbl_rom + ( + .clk (clk), + .addr (dbl_uop_addr), + .data (dbl_uop) + ); + + + // + // UUT + // + curve_dbl_add_256 uut + ( + .clk (clk), + .rst_n (rst_n), + + .ena (ena), + .rdy (rdy), + + .uop_addr (dbl_uop_addr), + .uop (dbl_uop), + + .px_addr (core_px_addr), + .py_addr (core_py_addr), + .pz_addr (core_pz_addr), + .rx_addr (core_rx_addr), + .ry_addr (core_ry_addr), + .rz_addr (core_rz_addr), + .q_addr (core_q_addr), + + .rx_wren (core_rx_wren), + .ry_wren (core_ry_wren), + .rz_wren (core_rz_wren), + + .px_din (core_px_data), + .py_din (core_py_data), + .pz_din (core_pz_data), + .rx_din (core_rx_data_rd), + .ry_din (core_ry_data_rd), + .rz_din (core_rz_data_rd), + .rx_dout (core_rx_data_wr), + .ry_dout (core_ry_data_wr), + .rz_dout (core_rz_data_wr), + .q_din (core_q_data) + ); + + + // + // Testbench Routine + // + reg ok = 1; + initial begin + + /* initialize control inputs */ + rst_n = 0; + ena = 0; + + /* wait for some time */ + #200; + + /* de-assert reset */ + rst_n = 1; + + /* wait for some time */ + #100; + + /* run tests */ + test_curve_doubler(PX_1, PY_1, PZ_1, RX_1, RY_1, RZ_1); + test_curve_doubler(PX_2, PY_2, PZ_2, RX_2, RY_2, RZ_2); + test_curve_doubler(PX_3, PY_3, PZ_3, RX_3, RY_3, RZ_3); + test_curve_doubler(PX_4, PY_4, PZ_4, RX_4, RY_4, RZ_4); + + /* print result */ + if (ok) $display("tb_curve_doubler_256: SUCCESS"); + else $display("tb_curve_doubler_256: FAILURE"); + // + // $finish; + // + end + + + // + // Test Task + // + reg t_ok; + + integer w; + + task test_curve_doubler; + + input [255:0] px; + input [255:0] py; + input [255:0] pz; + + input [255:0] rx; + input [255:0] ry; + input [255:0] rz; + + reg [255:0] px_shreg; + reg [255:0] py_shreg; + reg [255:0] pz_shreg; + + reg [255:0] rx_shreg; + reg [255:0] ry_shreg; + reg [255:0] rz_shreg; + + reg [255:0] q_shreg; + + begin + + /* start filling memories */ + tb_xyzq_wren = 1; + + /* initialize shift registers */ + px_shreg = px; + py_shreg = py; + pz_shreg = pz; + q_shreg = Q; + + /* write all the words */ + for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin + + /* set addresses */ + tb_xyzq_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* set data words */ + tb_px_data = px_shreg[31:0]; + tb_py_data = py_shreg[31:0]; + tb_pz_data = pz_shreg[31:0]; + tb_q_data = q_shreg[31:0]; + + /* shift inputs */ + px_shreg = {{32{1'bX}}, px_shreg[255:32]}; + py_shreg = {{32{1'bX}}, py_shreg[255:32]}; + pz_shreg = {{32{1'bX}}, pz_shreg[255:32]}; + q_shreg = {{32{1'bX}}, q_shreg[255:32]}; + + /* wait for 1 clock tick */ + #10; + + end + + /* wipe addresses */ + tb_xyzq_addr = {WORD_COUNTER_WIDTH{1'bX}}; + + /* wipe data words */ + tb_px_data = {32{1'bX}}; + tb_py_data = {32{1'bX}}; + tb_pz_data = {32{1'bX}}; + tb_q_data = {32{1'bX}}; + + /* stop filling memories */ + tb_xyzq_wren = 0; + + /* start operation */ + ena = 1; + + /* clear flag */ + #10 ena = 0; + + /* wait for operation to complete */ + while (!rdy) #10; + + /* read result */ + for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin + + /* set address */ + tb_xyzq_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* wait for 1 clock tick */ + #10; + + /* store data word */ + rx_shreg = {tb_rx_data, rx_shreg[255:32]}; + ry_shreg = {tb_ry_data, ry_shreg[255:32]}; + rz_shreg = {tb_rz_data, rz_shreg[255:32]}; + + end + + /* compare */ + t_ok = (rx_shreg == rx) && + (ry_shreg == ry) && + (rz_shreg == rz); + + /* display results */ + $display("test_curve_doubler(): %s", t_ok ? "OK" : "ERROR"); + + /* update global flag */ + ok = ok && t_ok; + + end + + endtask + + endmodule //------------------------------------------------------------------------------ |