From c09de3ee3a303bfab596def8e0b5c8b845e5a97f Mon Sep 17 00:00:00 2001 From: Rob Austein Date: Tue, 7 Mar 2017 19:55:09 -0500 Subject: Promote to a repository in the core tree. Change name of reset signal from rst_n to reset_n for consistancy with other Cryptech cores. Code common between this core and the ecdsa256 core split out into a separate library repository. Minor cleanup (Windows-isms, indentation). --- bench/tb_curve_adder_384.v | 750 ++++++++++++++++++++++----------------------- 1 file changed, 375 insertions(+), 375 deletions(-) (limited to 'bench/tb_curve_adder_384.v') diff --git a/bench/tb_curve_adder_384.v b/bench/tb_curve_adder_384.v index b2da029..4fee4e1 100644 --- a/bench/tb_curve_adder_384.v +++ b/bench/tb_curve_adder_384.v @@ -43,383 +43,383 @@ module tb_curve_adder_384; - // - // Test Vectors - // - localparam [383:0] PX_1 = 384'h7d51764067faaac686ee307807af5544a93e13c540cac538c7853a590102fa5fe6cdcc7791e44b76ef21c57e21df37e5; - localparam [383:0] PY_1 = 384'h046ed01f219649209a4cfd43572d7bdd1f10f74d5be895a6c8da8e8edfc2601aaf7651e497b8688cf02ba5e1c7e77773; - localparam [383:0] PZ_1 = 384'h27c452f26af1ece2924446b574969fd102556bd28712ff4b3eb1044c5ec23e59f958793e10a510f0aef98c3b724df1d5; - - localparam [383:0] RX_1 = 384'h238faca9e58d1fe1b59a24ba94ec6d9836fc360cb84e103715f1761554ff6a09b6d605a34f63ae0f995f59c162e7ff24; - localparam [383:0] RY_1 = 384'h63b7c7672a310f779a2047315523788d69b823d4e97e26c3b45201b0345a95de977024e97e8648215a637727d0f17747; - localparam [383:0] RZ_1 = 384'h394b5d916df6f9120c7771c750df3bc910998eb0a08daac1ca6e15ef70780fd48bf794d06f9cbe9568a2dbf4362dda86; - - - localparam [383:0] PX_2 = 384'h8418363a2fe99e888abba4df9e4a0e55452b9e968454ffadc96b4fb8072174109755c564a7be3c2f860652315d635f56; - localparam [383:0] PY_2 = 384'h2bef570ce39347040330df4ac581fcc7d9dd9deb286bd80f05257d90d6560f1b5381009a3a6f0acc1ea30a5e7cc7d8b8; - localparam [383:0] PZ_2 = 384'h86a8b840bd52d4dc58e9e4323fd4b40ea9b262a8cb45f7e95f5407b7e5eacc16fe4ce70125f20b76b37900af12cbf909; - - localparam [383:0] RX_2 = 384'h7de41f9c2d48cd65d2cd1288c4fcdcd5bfe37575b23b8784e6091917a1c92c264a1105ce3c4ab88ca53947f35610f671; - localparam [383:0] RY_2 = 384'h419decfcef28d06a824595bbcb86ff56aebe48a33ceb80f0a256b90aee8214d0d879454842457d49e00a2330cc0ccb57; - localparam [383:0] RZ_2 = 384'h63843f81a3427e4dea2e3e150c16d26a4aa2af4d8037a1012e0490babdfa55606e5cea5e183cc147f2c1b377748ae58b; - - - localparam [383:0] PX_3 = 384'hd95cd4004f9417b3bea71ac087da4849841c4fbb41b500736773f41f241414024d0025e1a4337e5b24b1fe2ba2e51a83; - localparam [383:0] PY_3 = 384'h53650c78f3347a07248d6f6452dd80f5e373c7eddc810c6123c912b55da1a297e147e834547d1af4938fc139e71958f7; - localparam [383:0] PZ_3 = 384'hfbcfa387106d61d1e1e5f660206189f13e0861b3eb2e880b200cae1878b8b47bd5b727b2825a5f395025bf42a571093b; - - localparam [383:0] RX_3 = 384'hf94e9fb67d6bac22276bb4fb4f965419f1907078236dd8520ff416e8525933055795c496d344a2e1cce480557dde88f4; - localparam [383:0] RY_3 = 384'h3feb5bc25c380ead1a149ab2f5e3ac4cfeaa5d91bd66dda0f29d6e02520ea8583bb3ab744fb826c18981f7bac03a0886; - localparam [383:0] RZ_3 = 384'hbc364ce11866cdeb1abdbc34b633e54fbb000090134600cb6dbff71f69e3d24843e40af30c07444530b53acb89eef49b; - - - localparam [383:0] PX_4 = 384'hxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; - localparam [383:0] PY_4 = 384'hxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; - localparam [383:0] PZ_4 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000; - - localparam [383:0] RX_4 = 384'haa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7; // G.x - localparam [383:0] RY_4 = 384'h3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f; // G.y - localparam [383:0] RZ_4 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; - - - localparam [383:0] PX_5 = 384'haa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7; // G.x - localparam [383:0] PY_5 = 384'h3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f; // G.y - localparam [383:0] PZ_5 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; - - localparam [383:0] RX_5 = 384'haaf06bba82e9f590e29c71c219bea51723c5893ae8b0c8cf4c117c3efb57ab8d55fa1b428155ad278b5743911b13ea8a; // H.x - localparam [383:0] RY_5 = 384'hc9e821b569d9d390a26167406d6d23d6070be242d765eb831625ceec4a0f473ef59f4e30e2817e6285bce2846f15f19d; // H.y - localparam [383:0] RZ_5 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; - - - localparam [383:0] PX_6 = 384'haa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7; // G.x - localparam [383:0] PY_6 = 384'h3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f; // G.y - localparam [383:0] PZ_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; - - localparam [383:0] RX_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; // - localparam [383:0] RY_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; // O - localparam [383:0] RZ_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000; // - - - localparam [383:0] Q = 384'hfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff0000000000000000ffffffff; - - - // - // Core Parameters - // - localparam WORD_COUNTER_WIDTH = 4; - localparam OPERAND_NUM_WORDS = 12; - - - // - // 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] add_uop_addr; - wire [19: 0] add_uop; - - uop_add_rom add_rom - ( - .clk (clk), - .addr (add_uop_addr), - .data (add_uop) - ); - - // - // UUT - // - curve_dbl_add_384 uut - ( - .clk (clk), - .rst_n (rst_n), - - .ena (ena), - .rdy (rdy), - - .uop_addr (add_uop_addr), - .uop (add_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 [383:0] PX_1 = 384'h7d51764067faaac686ee307807af5544a93e13c540cac538c7853a590102fa5fe6cdcc7791e44b76ef21c57e21df37e5; + localparam [383:0] PY_1 = 384'h046ed01f219649209a4cfd43572d7bdd1f10f74d5be895a6c8da8e8edfc2601aaf7651e497b8688cf02ba5e1c7e77773; + localparam [383:0] PZ_1 = 384'h27c452f26af1ece2924446b574969fd102556bd28712ff4b3eb1044c5ec23e59f958793e10a510f0aef98c3b724df1d5; + + localparam [383:0] RX_1 = 384'h238faca9e58d1fe1b59a24ba94ec6d9836fc360cb84e103715f1761554ff6a09b6d605a34f63ae0f995f59c162e7ff24; + localparam [383:0] RY_1 = 384'h63b7c7672a310f779a2047315523788d69b823d4e97e26c3b45201b0345a95de977024e97e8648215a637727d0f17747; + localparam [383:0] RZ_1 = 384'h394b5d916df6f9120c7771c750df3bc910998eb0a08daac1ca6e15ef70780fd48bf794d06f9cbe9568a2dbf4362dda86; + + + localparam [383:0] PX_2 = 384'h8418363a2fe99e888abba4df9e4a0e55452b9e968454ffadc96b4fb8072174109755c564a7be3c2f860652315d635f56; + localparam [383:0] PY_2 = 384'h2bef570ce39347040330df4ac581fcc7d9dd9deb286bd80f05257d90d6560f1b5381009a3a6f0acc1ea30a5e7cc7d8b8; + localparam [383:0] PZ_2 = 384'h86a8b840bd52d4dc58e9e4323fd4b40ea9b262a8cb45f7e95f5407b7e5eacc16fe4ce70125f20b76b37900af12cbf909; + + localparam [383:0] RX_2 = 384'h7de41f9c2d48cd65d2cd1288c4fcdcd5bfe37575b23b8784e6091917a1c92c264a1105ce3c4ab88ca53947f35610f671; + localparam [383:0] RY_2 = 384'h419decfcef28d06a824595bbcb86ff56aebe48a33ceb80f0a256b90aee8214d0d879454842457d49e00a2330cc0ccb57; + localparam [383:0] RZ_2 = 384'h63843f81a3427e4dea2e3e150c16d26a4aa2af4d8037a1012e0490babdfa55606e5cea5e183cc147f2c1b377748ae58b; + + + localparam [383:0] PX_3 = 384'hd95cd4004f9417b3bea71ac087da4849841c4fbb41b500736773f41f241414024d0025e1a4337e5b24b1fe2ba2e51a83; + localparam [383:0] PY_3 = 384'h53650c78f3347a07248d6f6452dd80f5e373c7eddc810c6123c912b55da1a297e147e834547d1af4938fc139e71958f7; + localparam [383:0] PZ_3 = 384'hfbcfa387106d61d1e1e5f660206189f13e0861b3eb2e880b200cae1878b8b47bd5b727b2825a5f395025bf42a571093b; + + localparam [383:0] RX_3 = 384'hf94e9fb67d6bac22276bb4fb4f965419f1907078236dd8520ff416e8525933055795c496d344a2e1cce480557dde88f4; + localparam [383:0] RY_3 = 384'h3feb5bc25c380ead1a149ab2f5e3ac4cfeaa5d91bd66dda0f29d6e02520ea8583bb3ab744fb826c18981f7bac03a0886; + localparam [383:0] RZ_3 = 384'hbc364ce11866cdeb1abdbc34b633e54fbb000090134600cb6dbff71f69e3d24843e40af30c07444530b53acb89eef49b; + + + localparam [383:0] PX_4 = 384'hxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; + localparam [383:0] PY_4 = 384'hxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; + localparam [383:0] PZ_4 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000; + + localparam [383:0] RX_4 = 384'haa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7; // G.x + localparam [383:0] RY_4 = 384'h3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f; // G.y + localparam [383:0] RZ_4 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; + + + localparam [383:0] PX_5 = 384'haa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7; // G.x + localparam [383:0] PY_5 = 384'h3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f; // G.y + localparam [383:0] PZ_5 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; + + localparam [383:0] RX_5 = 384'haaf06bba82e9f590e29c71c219bea51723c5893ae8b0c8cf4c117c3efb57ab8d55fa1b428155ad278b5743911b13ea8a; // H.x + localparam [383:0] RY_5 = 384'hc9e821b569d9d390a26167406d6d23d6070be242d765eb831625ceec4a0f473ef59f4e30e2817e6285bce2846f15f19d; // H.y + localparam [383:0] RZ_5 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; + + + localparam [383:0] PX_6 = 384'haa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7; // G.x + localparam [383:0] PY_6 = 384'h3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f; // G.y + localparam [383:0] PZ_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; + + localparam [383:0] RX_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; // + localparam [383:0] RY_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001; // O + localparam [383:0] RZ_6 = 384'h000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000; // + + + localparam [383:0] Q = 384'hfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff0000000000000000ffffffff; + + + // + // Core Parameters + // + localparam WORD_COUNTER_WIDTH = 4; + localparam OPERAND_NUM_WORDS = 12; + + + // + // 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) ); - - - // - // 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_adder(PX_1, PY_1, PZ_1, RX_1, RY_1, RZ_1); - test_curve_adder(PX_2, PY_2, PZ_2, RX_2, RY_2, RZ_2); - test_curve_adder(PX_3, PY_3, PZ_3, RX_3, RY_3, RZ_3); - test_curve_adder(PX_4, PY_4, PZ_4, RX_4, RY_4, RZ_4); - test_curve_adder(PX_5, PY_5, PZ_5, RX_5, RY_5, RZ_5); - test_curve_adder(PX_6, Q - PY_6, PZ_6, RX_6, RY_6, RZ_6); - - /* print result */ - if (ok) $display("tb_curve_adder_384: SUCCESS"); - else $display("tb_curve_adder_384: FAILURE"); - // - $finish; - // - end - - - // - // Test Task - // - reg t_ok; - - integer w; - - task test_curve_adder; - - input [383:0] px; - input [383:0] py; - input [383:0] pz; - - input [383:0] rx; - input [383:0] ry; - input [383:0] rz; - - reg [383:0] px_shreg; - reg [383:0] py_shreg; - reg [383:0] pz_shreg; - - reg [383:0] rx_shreg; - reg [383:0] ry_shreg; - reg [383:0] rz_shreg; - - reg [383:0] 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