Skip to content

X
x393
Commit 12ed7ed1 authored by Andrey Filippov's avatar Andrey Filippov
Browse files
Options

working on dct-iv

parent 79b43da3
Show whitespace changes
Inline Side-by-side
Showing with 1099 additions and 44 deletions
dct_tests_01.sav
View file @ 12ed7ed1
[*]
[*] GTKWave Analyzer v3.3.66 (w)1999-2015 BSI
[*] Tue Dec 6 17:55:24 2016
[*] GTKWave Analyzer v3.3.78 (w)1999-2016 BSI
[*] Tue Dec 13 06:32:08 2016
[*]
[dumpfile] "/home/eyesis/git/x393-neon/simulation/dct_tests_01-20161206105514691.fst"
[dumpfile_mtime] "Tue Dec 6 17:55:14 2016"
[dumpfile_size] 10348
[dumpfile] "/home/eyesis/git/x393-neon/simulation/dct_tests_01-20161212230744155.fst"
[dumpfile_mtime] "Tue Dec 13 06:07:44 2016"
[dumpfile_size] 100634
[savefile] "/home/eyesis/git/x393-neon/dct_tests_01.sav"
[timestart] 0
[size] 1814 1171
[pos] 1937 0
*-18.387537 1752000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
[pos] 1920 0
*-19.687614 1195000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
[treeopen] dct_tests_01.
[treeopen] dct_tests_01.dct_iv8_1d_i.
[treeopen] dct_tests_01.dct_iv8_1d_i.dsp_ma_preadd_c_1_i.
[treeopen] dct_tests_01.dct_iv_8x8_i.
[sst_width] 204
[signals_width] 305
[signals_width] 325
[sst_expanded] 1
[sst_vpaned_height] 344
@800200
@c00200
-top
@25
@24
dct_tests_01.i
dct_tests_01.j
@28
......@@ -87,10 +88,50 @@ dct_tests_01.y_we
dct_tests_01.phase_y[3:0]
dct_tests_01.y_dct[23:0]
dct_tests_01.y_out[23:0]
@1000200
dct_tests_01.dct_iv8_1d_i.y_index[2:0]
@1401200
-top
@800200
-2d-1d
@28
dct_tests_01.start
@22
dct_tests_01.x_out[23:0]
@8420
dct_tests_01.x_out[23:0]
dct_tests_01.dct_iv8_1d_i.d_in[23:0]
dct_tests_01.dct_iv8_1d_i.dout[23:0]
@28
dct_tests_01.dct_iv8_1d_i.en_out
@22
dct_tests_01.dct_iv8_1d_i.y_index[2:0]
@8420
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_0_i.d_in[23:0]
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_0_i.dout[24:0]
@28
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_0_i.en_out
@22
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_0_i.y_index[2:0]
@8420
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_1_i.d_in[23:0]
@8421
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_1_i.dout[24:0]
@28
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_1_i.en_out
@22
dct_tests_01.dct_iv_8x8_i.dct_iv8_1d_pass1_1_i.y_index[2:0]
@200
-
@1000200
-2d-1d
@c00200
-dct_iv8_1d
@22
[color] 2
dct_tests_01.dct_iv8_1d_i.phase_cnt[3:0]
@28
dct_tests_01.dct_iv8_1d_i.en_out
dct_tests_01.dct_iv8_1d_i.run_out
@c08022
dct_tests_01.phase_out[3:0]
@28
......@@ -105,8 +146,6 @@ dct_tests_01.dct_iv8_1d_i.start
dct_tests_01.dct_iv8_1d_i.restart
dct_tests_01.dct_iv8_1d_i.clk
@8022
[color] 2
dct_tests_01.dct_iv8_1d_i.phase_cnt[3:0]
dct_tests_01.dct_iv8_1d_i.d_in[23:0]
dct_tests_01.dct_iv8_1d_i.dsp_ain_1[24:0]
@28
......@@ -124,8 +163,8 @@ dct_tests_01.dct_iv8_1d_i.dsp_ced_1
@22
dct_tests_01.dct_iv8_1d_i.dsp_cin_1[47:0]
@28
dct_tests_01.dct_iv8_1d_i.dsp_cec_1
dct_tests_01.dct_iv8_1d_i.dsp_neg_m_1
dct_tests_01.dct_iv8_1d_i.dsp_cec_1
dct_tests_01.dct_iv8_1d_i.dsp_post_add_1
dct_tests_01.dct_iv8_1d_i.dsp_accum_1
@22
......@@ -238,7 +277,305 @@ dct_tests_01.dct_iv8_1d_i.pre2_start_out
dct_tests_01.dct_iv8_1d_i.rst
dct_tests_01.dct_iv8_1d_i.run_in
dct_tests_01.dct_iv8_1d_i.run_out
@1000200
@1401200
-dct_iv8_1d
@800200
-st22d_test
@28
dct_tests_01.CLK
dct_tests_01.RST
[color] 2
dct_tests_01.start
[color] 2
dct_tests_01.start2
@c00022
dct_tests_01.x_in_2d[23:0]
@28
(0)dct_tests_01.x_in_2d[23:0]
(1)dct_tests_01.x_in_2d[23:0]
(2)dct_tests_01.x_in_2d[23:0]
(3)dct_tests_01.x_in_2d[23:0]
(4)dct_tests_01.x_in_2d[23:0]
(5)dct_tests_01.x_in_2d[23:0]
(6)dct_tests_01.x_in_2d[23:0]
(7)dct_tests_01.x_in_2d[23:0]
(8)dct_tests_01.x_in_2d[23:0]
(9)dct_tests_01.x_in_2d[23:0]
(10)dct_tests_01.x_in_2d[23:0]
(11)dct_tests_01.x_in_2d[23:0]
(12)dct_tests_01.x_in_2d[23:0]
(13)dct_tests_01.x_in_2d[23:0]
(14)dct_tests_01.x_in_2d[23:0]
(15)dct_tests_01.x_in_2d[23:0]
(16)dct_tests_01.x_in_2d[23:0]
(17)dct_tests_01.x_in_2d[23:0]
(18)dct_tests_01.x_in_2d[23:0]
(19)dct_tests_01.x_in_2d[23:0]
(20)dct_tests_01.x_in_2d[23:0]
(21)dct_tests_01.x_in_2d[23:0]
(22)dct_tests_01.x_in_2d[23:0]
(23)dct_tests_01.x_in_2d[23:0]
@1401200
-group_end
@c08420
dct_tests_01.x_in_2d[23:0]
@28
(0)dct_tests_01.x_in_2d[23:0]
(1)dct_tests_01.x_in_2d[23:0]
(2)dct_tests_01.x_in_2d[23:0]
(3)dct_tests_01.x_in_2d[23:0]
(4)dct_tests_01.x_in_2d[23:0]
(5)dct_tests_01.x_in_2d[23:0]
(6)dct_tests_01.x_in_2d[23:0]
(7)dct_tests_01.x_in_2d[23:0]
(8)dct_tests_01.x_in_2d[23:0]
(9)dct_tests_01.x_in_2d[23:0]
(10)dct_tests_01.x_in_2d[23:0]
(11)dct_tests_01.x_in_2d[23:0]
(12)dct_tests_01.x_in_2d[23:0]
(13)dct_tests_01.x_in_2d[23:0]
(14)dct_tests_01.x_in_2d[23:0]
(15)dct_tests_01.x_in_2d[23:0]
(16)dct_tests_01.x_in_2d[23:0]
(17)dct_tests_01.x_in_2d[23:0]
(18)dct_tests_01.x_in_2d[23:0]
(19)dct_tests_01.x_in_2d[23:0]
(20)dct_tests_01.x_in_2d[23:0]
(21)dct_tests_01.x_in_2d[23:0]
(22)dct_tests_01.x_in_2d[23:0]
(23)dct_tests_01.x_in_2d[23:0]
@1401200
-group_end
@28
dct_tests_01.pre_busy_2d
dct_tests_01.pre_last_in_2d
dct_tests_01.pre_first_out_2d
dct_tests_01.dv_2d
@22
dct_tests_01.d_out_2d[23:0]
@28
dct_tests_01.dv_2dr
@22
dct_tests_01.d_out_2dr[23:0]
@8420
dct_tests_01.d_out_2dr[23:0]
@200
-
@800200
-dct_iv_8x8
@28
dct_tests_01.dct_iv_8x8_i.clk
dct_tests_01.dct_iv_8x8_i.start
dct_tests_01.dct_iv_8x8_i.pre_last_in
dct_tests_01.dct_iv_8x8_i.pre_busy
dct_tests_01.dct_iv_8x8_i.x_run
@c00022
dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
(1)dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
(2)dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
(3)dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
(4)dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
(5)dct_tests_01.dct_iv_8x8_i.x_wa[5:0]
@1401200
-group_end
@28
dct_tests_01.dct_iv_8x8_i.dcth_phin_start
@22
dct_tests_01.dct_iv_8x8_i.dcth_phin_run
@c00022
dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
(1)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
(2)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
(3)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
(4)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
(5)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
(6)dct_tests_01.dct_iv_8x8_i.dcth_phin[6:0]
@1401200
-group_end
@22
dct_tests_01.dct_iv_8x8_i.x_ra0[2:0]
dct_tests_01.dct_iv_8x8_i.x_ra1[2:0]
@28
dct_tests_01.dct_iv_8x8_i.dcth_en0
dct_tests_01.dct_iv_8x8_i.dcth_start_0_r
@22
dct_tests_01.dct_iv_8x8_i.dcth_xin0[23:0]
@28
dct_tests_01.dct_iv_8x8_i.dcth_en_out0
@22
dct_tests_01.dct_iv_8x8_i.dcth_dout0[24:0]
dct_tests_01.dct_iv_8x8_i.dcth_yindex0[2:0]
@200
-
@28
dct_tests_01.dct_iv_8x8_i.dcth_en1
dct_tests_01.dct_iv_8x8_i.dcth_start_1_r
@22
dct_tests_01.dct_iv_8x8_i.dcth_xin1[23:0]
@28
dct_tests_01.dct_iv_8x8_i.dcth_en_out1
@22
dct_tests_01.dct_iv_8x8_i.dcth_dout1[24:0]
dct_tests_01.dct_iv_8x8_i.dcth_yindex1[2:0]
@200
-
@22
dct_tests_01.dct_iv_8x8_i.transpose_start
@28
dct_tests_01.dct_iv_8x8_i.transpose_in_run
@22
dct_tests_01.dct_iv_8x8_i.transpose_w_page[1:0]
[color] 3
dct_tests_01.dct_iv_8x8_i.transpose_cntr[6:0]
@28
dct_tests_01.dct_iv_8x8_i.transpose_wa_decr
@22
dct_tests_01.dct_iv_8x8_i.transpose_wa_low[2:0]
dct_tests_01.dct_iv_8x8_i.transpose_wa_high[4:0]
dct_tests_01.dct_iv_8x8_i.transpose_wa[7:0]
@28
dct_tests_01.dct_iv_8x8_i.transpose_we
@22
[color] 2
dct_tests_01.dct_iv_8x8_i.transpose_debug_di[7:0]
@28
dct_tests_01.dct_iv_8x8_i.transpose_out_start
@800022
dct_tests_01.dct_iv_8x8_i.transpose_out_run[2:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.transpose_out_run[2:0]
(1)dct_tests_01.dct_iv_8x8_i.transpose_out_run[2:0]
(2)dct_tests_01.dct_iv_8x8_i.transpose_out_run[2:0]
@1001200
-group_end
@c00028
dct_tests_01.dct_iv_8x8_i.transpose_r_page[1:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.transpose_r_page[1:0]
(1)dct_tests_01.dct_iv_8x8_i.transpose_r_page[1:0]
@1401200
-group_end
@c00022
dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
(1)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
(2)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
(3)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
(4)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
(5)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
(6)dct_tests_01.dct_iv_8x8_i.transpose_rcntr[6:0]
@1401200
-group_end
@22
dct_tests_01.dct_iv_8x8_i.transpose_ra[7:0]
dct_tests_01.dct_iv_8x8_i.transpose_reg[24:0]
@8420
dct_tests_01.dct_iv_8x8_i.transpose_out[24:0]
@22
dct_tests_01.dct_iv_8x8_i.transpose_out[24:0]
dct_tests_01.dct_iv_8x8_i.transpose_debug_reg[7:0]
dct_tests_01.dct_iv_8x8_i.transpose_debug_out[7:0]
@8022
dct_tests_01.dct_iv_8x8_i.transpose_debug_out[7:0]
@22
dct_tests_01.dct_iv_8x8_i.t_wa[3:0]
@28
dct_tests_01.dct_iv_8x8_i.t_we0
dct_tests_01.dct_iv_8x8_i.t_we1
dct_tests_01.dct_iv_8x8_i.dctv_start_0_r
dct_tests_01.dct_iv_8x8_i.dctv_start_1_r
dct_tests_01.dct_iv_8x8_i.dctv_en0
dct_tests_01.dct_iv_8x8_i.dctv_en1
dct_tests_01.dct_iv_8x8_i.dctv_phin_start
dct_tests_01.dct_iv_8x8_i.dctv_phin_run
@c00022
[color] 2
dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
(1)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
(2)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
(3)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
(4)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
(5)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
(6)dct_tests_01.dct_iv_8x8_i.dctv_phin[6:0]
@1401200
-group_end
@8022
dct_tests_01.dct_iv_8x8_i.t_ra0[2:0]
dct_tests_01.dct_iv_8x8_i.t_ra1[2:0]
@22
dct_tests_01.dct_iv_8x8_i.dctv_xin0[24:0]
@8420
dct_tests_01.dct_iv_8x8_i.dctv_xin0[24:0]
@22
dct_tests_01.dct_iv_8x8_i.dctv_xin1[24:0]
dct_tests_01.dct_iv_8x8_i.transpose_debug_out[7:0]
dct_tests_01.dct_iv_8x8_i.dctv_debug_xin0[7:0]
@8022
dct_tests_01.dct_iv_8x8_i.dctv_debug_xin0[7:0]
@22
dct_tests_01.dct_iv_8x8_i.dctv_debug_xin1[7:0]
@28
dct_tests_01.dct_iv_8x8_i.dctv_start_0_r
dct_tests_01.dct_iv_8x8_i.dctv_start_1_r
dct_tests_01.dct_iv_8x8_i.dctv_en0
dct_tests_01.dct_iv_8x8_i.dctv_en1
dct_tests_01.dct_iv_8x8_i.dctv_en_out0
dct_tests_01.dct_iv_8x8_i.dctv_en_out1
@c00022
dct_tests_01.dct_iv_8x8_i.dctv_yindex0[2:0]
@28
(0)dct_tests_01.dct_iv_8x8_i.dctv_yindex0[2:0]
(1)dct_tests_01.dct_iv_8x8_i.dctv_yindex0[2:0]
(2)dct_tests_01.dct_iv_8x8_i.dctv_yindex0[2:0]
@1401200
-group_end
@22
dct_tests_01.dct_iv_8x8_i.dctv_yindex1[2:0]
dct_tests_01.dct_iv_8x8_i.dctv_dout0[24:0]
dct_tests_01.dct_iv_8x8_i.dctv_dout1[24:0]
@28
dct_tests_01.dct_iv_8x8_i.dctv_out_start
dct_tests_01.dct_iv_8x8_i.dctv_out_run
@22
dct_tests_01.dct_iv_8x8_i.dctv_out_cntr[6:0]
@28
dct_tests_01.dct_iv_8x8_i.dctv_out_we_1
dct_tests_01.dct_iv_8x8_i.dctv_out_sel
@22
dct_tests_01.dct_iv_8x8_i.dctv_out_wa_1[3:0]
@28
dct_tests_01.dct_iv_8x8_i.dctv_out_start_1
dct_tests_01.dct_iv_8x8_i.dctv_out_run_1
@22
dct_tests_01.dct_iv_8x8_i.dctv_out_ra_1[6:0]
dct_tests_01.dct_iv_8x8_i.dctv_out_ra_1_w[3:0]
dct_tests_01.dct_iv_8x8_i.dctv_out_reg_1[23:0]
dct_tests_01.dct_iv_8x8_i.dctv_out_debug_reg_1[2:0]
@28
dct_tests_01.dct_iv_8x8_i.dctv_out_we_2
@22
dct_tests_01.dct_iv_8x8_i.dctv_out_wa_2[1:0]
@28
dct_tests_01.dct_iv_8x8_i.dctv_out_run_2
@22
dct_tests_01.dct_iv_8x8_i.dctv_out_ra_2[6:0]
dct_tests_01.dct_iv_8x8_i.dctv_out_reg_2[23:0]
dct_tests_01.dct_iv_8x8_i.dctv_out_debug_reg_2[2:0]
@1000200
-dct_iv_8x8
@800200
-dct_iv_8x8r
@200
-
@1000200
-dct_iv_8x8r
-st22d_test
[pattern_trace] 1
[pattern_trace] 0
dsp/dct_iv.ods
View file @ 12ed7ed1
No preview for this file type
dsp/dct_iv8_1d.v
View file @ 12ed7ed1
......@@ -71,7 +71,9 @@ module dct_iv8_1d#(
output [OUT_WIDTH -1:0] dout,
output reg pre2_start_out, // 2 clock cycle before Y0 output, full dout sequence
// start_out-x-Y0-x-Y7-x-Y4-x-Y3-x-Y1-x-Y6-x-Y2-x-Y5
output reg en_out // valid at the same time slot as pre2_start_out (goes active with pre2_start_out)
output en_out, // valid at the same time slot as pre2_start_out (goes active with pre2_start_out), 1 ahead of data
output reg [2:0] y_index // for simulation - valid with dout - index of the data output
);
// X6-X7-X5-X2-X1-X3-X0-X4-*-X5-X1-X2-*-X4-X7-*
// X2-X7-X3-X4-X5-X6-X0-X1-*-X3-X5-X4-*-X1-X7-*
......@@ -132,6 +134,9 @@ module dct_iv8_1d#(
reg run_in; // receiving input data
reg restart; // restarting next block if en was active at phase=14;
reg run_out; // running output data
reg en_out_r;
assign en_out = en_out_r;
assign dsp_ain_2 = dsp_p_1 [STAGE1_RSHIFT +: A_WIDTH];
......@@ -147,6 +152,23 @@ module dct_iv8_1d#(
wire din_zero = ~(|d_in);
assign dsp_cin_1 = {{P_WIDTH-WIDTH-COSINE_SHIFT{d_in[WIDTH-1]}},d_in,~d_in[WIDTH-1]^din_zero,{COSINE_SHIFT-1{d_in[WIDTH-1]}}};
always @ (posedge clk) begin
if (en_out_r) begin
case (phase_cnt[3:1])
3'h0: y_index <= 7;
3'h1: y_index <= 4;
3'h2: y_index <= 3;
3'h3: y_index <= 1;
3'h4: y_index <= 6;
3'h5: y_index <= 2;
3'h6: y_index <= 5;
3'h7: y_index <= 0;
endcase
end else begin
y_index <= 'bx;
end
end
//register files
assign dsp_din_1 = dsp_din_1_ram[dsp_din_1_ra];
......@@ -173,7 +195,7 @@ module dct_iv8_1d#(
pre2_start_out <= run_out && (phase_cnt == 14);
en_out <= run_out && !phase_cnt[0];
en_out_r <= run_out && !phase_cnt[0];
// Cosine table, defined to fit into 17 bits for 18-bit signed DSP B-operand
case (phase_cnt)
......
dsp/dct_iv_8x8.v 0 → 100644
View file @ 12ed7ed1
/*!
* <b>Module:</b>dct_iv_8x8
* @file dct_iv_8x8.v
* @date 2016-12-08
* @author Andrey Filippov
*
* @brief 2-d DCT-IV implementation, 1 clock/data word. Input in scanline order, output - transposed
*
* @copyright Copyright (c) 2016 Elphel, Inc.
*
* <b>License:</b>
*
*dct_iv_8x8.v is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dct_iv_8x8.v is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/> .
*
* Additional permission under GNU GPL version 3 section 7:
* If you modify this Program, or any covered work, by linking or combining it
* with independent modules provided by the FPGA vendor only (this permission
* does not extend to any 3-rd party modules, "soft cores" or macros) under
* different license terms solely for the purpose of generating binary "bitstream"
* files and/or simulating the code, the copyright holders of this Program give
* you the right to distribute the covered work without those independent modules
* as long as the source code for them is available from the FPGA vendor free of
* charge, and there is no dependence on any encrypted modules for simulating of
* the combined code. This permission applies to you if the distributed code
* contains all the components and scripts required to completely simulate it
* with at least one of the Free Software programs.
*/
`timescale 1ns/1ps
module dct_iv_8x8#(
parameter INPUT_WIDTH = 25,
parameter OUT_WIDTH = 25,
parameter OUT_RSHIFT1 = 3, // overall right shift of the result from input, aligned by MSB for pass1 (>=3 will never cause saturation)
parameter OUT_RSHIFT2 = 0, // overall right shift of the result from input, aligned by MSB for pass2 (>=3 will never cause saturation)
parameter TRANSPOSE_WIDTH = 25, // transpose memory width
parameter DSP_B_WIDTH = 18,
parameter DSP_A_WIDTH = 25,
parameter DSP_P_WIDTH = 48,
parameter COSINE_SHIFT= 17,
parameter COS_01_32 = 130441, // int(round((1<<17) * cos( 1*pi/32)))
parameter COS_03_32 = 125428, // int(round((1<<17) * cos( 3*pi/32)))
parameter COS_04_32 = 121095, // int(round((1<<17) * cos( 4*pi/32)))
parameter COS_05_32 = 115595, // int(round((1<<17) * cos( 5*pi/32)))
parameter COS_07_32 = 101320, // int(round((1<<17) * cos( 7*pi/32)))
parameter COS_08_32 = 92682, // int(round((1<<17) * cos( 8*pi/32)))
parameter COS_09_32 = 83151, // int(round((1<<17) * cos( 9*pi/32)))
parameter COS_11_32 = 61787, // int(round((1<<17) * cos(11*pi/32)))
parameter COS_12_32 = 50159, // int(round((1<<17) * cos(12*pi/32)))
parameter COS_13_32 = 38048, // int(round((1<<17) * cos(13*pi/32)))
parameter COS_15_32 = 12847 // int(round((1<<17) * cos(15*pi/32)))
) (
input clk, //!< system clock, posedge
input rst, //!< sync reset
input start, //!< single-cycle start pulse that goes with the first pixel data.
// Next data should be sent in bursts of 8, pause of 8 - total 128 cycles
input signed [INPUT_WIDTH-1:0] xin, //!< input data
output pre_last_in, //!< output high during input of the pre-last of 64 pixels in a 8x8 block (next can be start
output reg pre_first_out, //!< 1 cycle ahead of the first output in a 64 block
output reg dv, //!< data output valid. WAS: Will go high on the 94-th cycle after the start
output signed [OUT_WIDTH-1:0] d_out, //!< output data
output reg pre_busy); //!< start should come each 64-th cycle (next after pre_last_in), and not after pre_busy)
// 1. Two 16xINPUT_WIDTH memories to feed two of the 'horizontal' 1-dct - they should provide outputs shifted by 1 clock
// 2. of the horizontal DCTs
// 3. common transpose memory plus 2 input reorder memory for each of the vertical DCT
// 4. 2 of the vertical DCTs
// 5. small memory to combine/reorder outputs (2 stages as 1 x16 memory is not enough)
reg x_run;
reg [5:0] x_wa;
wire dcth_phin_start = x_run && (x_wa[5:0] == 6);
reg dcth_phin_run;
reg dcth_en0;
reg dcth_en1;
reg [6:0] dcth_phin;
reg [2:0] x_ra0;
reg [2:0] x_ra1;
reg signed [INPUT_WIDTH-1:0] x_ram0[0:7];
reg signed [INPUT_WIDTH-1:0] x_ram1[0:7];
reg signed [INPUT_WIDTH-1:0] dcth_xin0;
reg signed [INPUT_WIDTH-1:0] dcth_xin1;
wire signed [TRANSPOSE_WIDTH-1:0] dcth_dout0;
wire signed [TRANSPOSE_WIDTH-1:0] dcth_dout1;
// wire dcth_pre2_start_out0;
// wire dcth_pre2_start_out1;
wire dcth_en_out0;
wire dcth_en_out1;
wire dcth_start_0_w = dcth_phin_run && (dcth_phin [6:0] ==0);
wire dcth_start_1_w = dcth_phin_run && (dcth_phin [6:0] ==9);
reg dcth_start_0_r;
reg dcth_start_1_r;
reg [1:0] transpose_w_page;
reg [6:0] transpose_cntr; // transpose memory counter, [6] == 1 when the last page is being finished
reg transpose_in_run;
wire transpose_start = dcth_phin_run && (dcth_phin [6:0] == 7'h10);
reg [2:0] transpose_wa_low; // [2:0] transpose memory low address bits, [3] - other group (of 16)
reg [4:0] transpose_wa_high; // high bits of transpose memory write address
wire [7:0] transpose_wa = {transpose_wa_high,transpose_wa_low};
wire transpose_wa_decr = (transpose_cntr[0] & ~transpose_cntr[3]);
reg transpose_we;
wire [TRANSPOSE_WIDTH-1:0] transpose_di = transpose_cntr[0]? dcth_dout0: dcth_dout1;
reg [TRANSPOSE_WIDTH-1:0] transpose_ram[0:255];
wire [2:0] dcth_yindex0;
wire [2:0] dcth_yindex1;
wire [7:0] transpose_debug_di= {transpose_wa_high, transpose_cntr[0]? dcth_yindex0: dcth_yindex1};
reg [7:0] transpose_debug_ram[0:255];
reg [6:0] transpose_rcntr; // transpose read memory counter, [6] == 1 when the last page is being finished
reg [2:0] transpose_out_run;
wire transpose_out_start = transpose_in_run && (transpose_cntr[6:0] == 7'h34); // 7'h33 is actual minimum
reg [1:0] transpose_r_page;
reg [TRANSPOSE_WIDTH-1:0] transpose_reg; // internal BRAM register
reg [TRANSPOSE_WIDTH-1:0] transpose_out; // output BRAM register
reg [7:0] transpose_debug_reg; // internal BRAM register
reg [7:0] transpose_debug_out; // output BRAM register
wire [7:0] transpose_ra = {transpose_r_page, transpose_rcntr[2:0], transpose_rcntr[5:3]};
reg [3:0] t_wa;
wire t_we0 = transpose_out_run[2] && !t_wa[3];
wire t_we1 = transpose_out_run[2] && t_wa[3];
reg signed [TRANSPOSE_WIDTH-1:0] t_ram0[0:7];
reg signed [TRANSPOSE_WIDTH-1:0] t_ram1[0:7];
reg signed [TRANSPOSE_WIDTH-1:0] dctv_xin0;
reg signed [TRANSPOSE_WIDTH-1:0] dctv_xin1;
reg signed [7:0] t_debug_ram0[0:7];
reg signed [7:0] t_debug_ram1[0:7];
reg signed [7:0] dctv_debug_xin0; // SuppressThisWarning VEditor - simulation only
reg signed [7:0] dctv_debug_xin1; // SuppressThisWarning VEditor - simulation only
wire signed [OUT_WIDTH-1:0] dctv_dout0;
wire signed [OUT_WIDTH-1:0] dctv_dout1;
wire dctv_en_out0;
wire dctv_en_out1;
wire [2:0] dctv_yindex0;
wire [2:0] dctv_yindex1;
wire dctv_phin_start = transpose_out_run && (transpose_rcntr[5:0] == 8);
reg dctv_phin_run;
reg dctv_en0;
reg dctv_en1;
reg [6:0] dctv_phin;
reg [2:0] t_ra0;
reg [2:0] t_ra1;
wire dctv_start_0_w = dctv_phin_run && (dctv_phin [6:0] ==0);
wire dctv_start_1_w = dctv_phin_run && (dctv_phin [6:0] ==9);
reg dctv_start_0_r;
reg dctv_start_1_r;
reg pre_last_in_r;
reg [6:0] dctv_out_cntr; // count output data from second (vertical) pass (bit 6 - stopping)
reg dctv_out_run; //
wire dctv_out_start = dctv_phin [6:0] == 'h10;
reg [3:0] dctv_out_wa_1;
reg dctv_out_we_1;
reg dctv_out_sel; // select DCTv channel output;
reg signed [OUT_WIDTH-1:0] dctv_out_ram_1[0:15];
reg [2:0] dctv_out_debug_ram_1[0:15];
reg [6:0] dctv_out_ra_1;
wire [3:0] dctv_out_ra_1_w = {dctv_out_ra_1[3:1], ~dctv_out_ra_1[0]};
wire dctv_out_start_1 = dctv_out_cntr[6:0] == 'h0c; // 'h0b;
reg dctv_out_run_1;
reg signed [OUT_WIDTH-1:0] dctv_out_reg_1;
reg [2:0] dctv_out_debug_reg_1;
reg signed [OUT_WIDTH-1:0] dctv_out_ram_2[0:3];
reg [2:0] dctv_out_debug_ram_2[0:3];
reg dctv_out_we_2;
reg [1:0] dctv_out_wa_2;
reg [6:0] dctv_out_ra_2;
wire dctv_out_start_2 = dctv_out_ra_1[6:0] == 2;
reg dctv_out_run_2;
reg signed [OUT_WIDTH-1:0] dctv_out_reg_2;
reg [2:0] dctv_out_debug_reg_2; // SuppressThisWarning VEditor - simulation only
assign d_out = dctv_out_reg_2;
assign pre_last_in = pre_last_in_r;
always @ (posedge clk) begin
if (rst) x_run <= 0;
else if (start) x_run <= 1;
else if (&x_wa[5:0]) x_run <= 0;
if (!x_run) x_wa <= 0;
else x_wa <= x_wa + 1;
pre_last_in_r <= x_run && (x_wa[5:0] == 'h3d);
if (rst) pre_busy <= 0;
else if (pre_last_in_r) pre_busy <= 1;
else if (dcth_phin [5:0] == 5) pre_busy <= 0; // check actual?
if (rst) dcth_phin_run <= 0;
else if (dcth_phin_start) dcth_phin_run <= 1;
else if (dcth_phin [6:0] == 7'h48) dcth_phin_run <= 0; // check actual?
if (!dcth_phin_run || dcth_phin_start) dcth_phin <= 0;
else dcth_phin <= dcth_phin + 1;
if (rst) dcth_en0 <= 0;
else if (dcth_start_0_w) dcth_en0 <= 1;
else if (!x_run) dcth_en0 <= 0; // maybe get rid of this signal and send start for each 8?
if (rst) dcth_en1 <= 0;
else if (dcth_start_1_w) dcth_en1 <= 1;
else if (dcth_phin [6]) dcth_en1 <= 0; // maybe get rid of this signal and send start for each 8?
//write input reorder memory
if (x_run && !x_wa[3]) x_ram0[x_wa[2:0]] <= xin;
if (x_run && x_wa[3]) x_ram1[x_wa[2:0]] <= xin;
//read input reorder memory
dcth_xin0 <= x_ram0[x_ra0[2:0]];
dcth_xin1 <= x_ram1[x_ra1[2:0]];
dcth_start_0_r <= dcth_start_0_w;
dcth_start_1_r <= dcth_start_1_w;
if (rst) transpose_in_run <= 0;
else if (transpose_start) transpose_in_run <= 1;
else if (transpose_cntr [6:0] == 7'h46) transpose_in_run <= 0; // check actual?
if (!transpose_in_run || transpose_start) transpose_cntr <= 0;
else transpose_cntr <= transpose_cntr + 1;
if (rst) transpose_w_page <= 0;
else if (transpose_in_run && (&transpose_cntr[5:0])) transpose_w_page <= transpose_w_page + 1;
case (transpose_cntr[3:0])
4'h0: transpose_wa_low <= 0;
4'h1: transpose_wa_low <= 1;
4'h2: transpose_wa_low <= 7;
4'h3: transpose_wa_low <= 6;
4'h4: transpose_wa_low <= 4;
4'h5: transpose_wa_low <= 2;
4'h6: transpose_wa_low <= 3;
4'h7: transpose_wa_low <= 5;
4'h8: transpose_wa_low <= 1;
4'h9: transpose_wa_low <= 0;
4'ha: transpose_wa_low <= 6;
4'hb: transpose_wa_low <= 7;
4'hc: transpose_wa_low <= 2;
4'hd: transpose_wa_low <= 4;
4'he: transpose_wa_low <= 5;
4'hf: transpose_wa_low <= 3;
endcase
transpose_wa_high <= {transpose_w_page, transpose_cntr[5:4], transpose_cntr[0]} - {transpose_wa_decr,1'b0};
transpose_we <= dcth_en_out0 || dcth_en_out1;
// Write transpose memory)
if (transpose_we) transpose_ram[transpose_wa] <= transpose_di;
if (transpose_we) transpose_debug_ram[transpose_wa] <= transpose_debug_di;
// if (transpose_we) $display("%d %d @%t",transpose_cntr, transpose_wa, $time) ;
if (rst) transpose_out_run[0] <= 0;
else if (transpose_out_start) transpose_out_run[0] <= 1;
else if (&transpose_rcntr[5:0]) transpose_out_run[0] <= 0; // check actual?
transpose_out_run[2:1] <= transpose_out_run[1:0];
if (!transpose_out_run[0] || transpose_out_start) transpose_rcntr <= 0;
else transpose_rcntr <= transpose_rcntr + 1;
if (transpose_out_start) transpose_r_page <= transpose_w_page;
// Read transpose memory to 2 small reorder memories, use BRAM register
if (transpose_out_run[0]) transpose_reg <= transpose_ram[transpose_ra];
if (transpose_out_run[1]) transpose_out <= transpose_reg;
if (transpose_out_run[0]) transpose_debug_reg <= transpose_debug_ram[transpose_ra];
if (transpose_out_run[1]) transpose_debug_out <= transpose_debug_reg;
if (!transpose_out_run[2]) t_wa <= 0;
else t_wa <= t_wa+1;
if (rst) dctv_phin_run <= 0;
else if (dctv_phin_start) dctv_phin_run <= 1;
else if (dctv_phin [6:0] == 7'h48) dctv_phin_run <= 0; // check actual?
if (!dctv_phin_run || dctv_phin_start) dctv_phin <= 0;
else dctv_phin <= dctv_phin + 1;
if (rst) dctv_en0 <= 0;
else if (dctv_start_0_w) dctv_en0 <= 1;
else if (!transpose_out_run[2]) dctv_en0 <= 0; // maybe get rid of this signal and send satrt for each 8?
if (rst) dctv_en1 <= 0;
else if (dctv_start_1_w) dctv_en1 <= 1;
else if (dctv_phin[6]) dctv_en1 <= 0; // maybe get rid of this signal and send satrt for each 8?
if (t_we0 || t_we1) $display("%d %d",transpose_rcntr-2, transpose_out) ;
//write vertical dct input reorder memory
if (t_we0) t_ram0[t_wa[2:0]] <= transpose_out;
if (t_we1) t_ram1[t_wa[2:0]] <= transpose_out;
if (t_we0) t_debug_ram0[t_wa[2:0]] <= transpose_debug_out;
if (t_we1) t_debug_ram1[t_wa[2:0]] <= transpose_debug_out;
//read vertical dct input reorder memory
dctv_xin0 <= t_ram0[t_ra0[2:0]];
dctv_xin1 <= t_ram1[t_ra1[2:0]];
dctv_start_0_r <= dctv_start_0_w;
dctv_start_1_r <= dctv_start_1_w;
dctv_debug_xin0 <= t_debug_ram0[t_ra0[2:0]];
dctv_debug_xin1 <= t_debug_ram1[t_ra1[2:0]];
// Reordering data from a pair of vertical DCTs - 2 steps, 1 is not enough
if (rst) dctv_out_run <= 0;
else if (dctv_out_start) dctv_out_run <= 1;
else if (dctv_out_cntr[6:0] == 'h47) dctv_out_run <= 0;
if (!dctv_out_run || dctv_out_start) dctv_out_cntr <= 0;
else dctv_out_cntr <= dctv_out_cntr + 1;
dctv_out_we_1 <= dctv_en_out0 || dctv_en_out1;
dctv_out_sel <= dctv_out_cntr[0];
case (dctv_out_cntr[3:0])
4'h0: dctv_out_wa_1 <= 0;
4'h1: dctv_out_wa_1 <= 9;
4'h2: dctv_out_wa_1 <= 7;
4'h3: dctv_out_wa_1 <= 14;
4'h4: dctv_out_wa_1 <= 4;
4'h5: dctv_out_wa_1 <= 10;
4'h6: dctv_out_wa_1 <= 3;
4'h7: dctv_out_wa_1 <= 13;
4'h8: dctv_out_wa_1 <= 1;
4'h9: dctv_out_wa_1 <= 8;
4'ha: dctv_out_wa_1 <= 6;
4'hb: dctv_out_wa_1 <= 15;
4'hc: dctv_out_wa_1 <= 2;
4'hd: dctv_out_wa_1 <= 12;
4'he: dctv_out_wa_1 <= 5;
4'hf: dctv_out_wa_1 <= 11;
endcase
// write first stage of output reordering
if (dctv_out_we_1) dctv_out_ram_1[dctv_out_wa_1] <= dctv_out_sel? dctv_dout1: dctv_dout0;
if (dctv_out_we_1) dctv_out_debug_ram_1[dctv_out_wa_1] <= dctv_out_sel? dctv_yindex1: dctv_yindex0;
if (rst) dctv_out_run_1 <= 0;
else if (dctv_out_start_1) dctv_out_run_1 <= 1;
else if (&dctv_out_ra_1[5:0]) dctv_out_run_1 <= 0;
if (!dctv_out_run_1 || dctv_out_start_1) dctv_out_ra_1 <= 0;
else dctv_out_ra_1 <= dctv_out_ra_1 + 1;
// reading first stage of output reorder RAM
if (dctv_out_run_1) dctv_out_reg_1 <= dctv_out_ram_1[dctv_out_ra_1_w];
if (dctv_out_run_1) dctv_out_debug_reg_1 <= dctv_out_debug_ram_1[dctv_out_ra_1_w];
// last stage of the output reordering - 4 register memory
dctv_out_we_2 <= dctv_out_run_1;
dctv_out_wa_2 <= dctv_out_ra_1_w[1:0];
// write first stage of output reordering
if (dctv_out_we_2) dctv_out_ram_2[dctv_out_wa_2] <= dctv_out_reg_1;
if (dctv_out_we_2) dctv_out_debug_ram_2[dctv_out_wa_2] <= dctv_out_debug_reg_1;
if (rst) dctv_out_run_2 <= 0;
else if (dctv_out_start_2) dctv_out_run_2 <= 1;
else if (&dctv_out_ra_2[5:0]) dctv_out_run_2 <= 0;
if (!dctv_out_run_2 || dctv_out_start_2) dctv_out_ra_2 <= 0;
else dctv_out_ra_2 <= dctv_out_ra_2 + 1;
// reading first stage of output reorder RAM
if (dctv_out_run_2) dctv_out_reg_2 <= dctv_out_ram_2[dctv_out_ra_2[1:0]];
if (dctv_out_run_2) dctv_out_debug_reg_2 <= dctv_out_debug_ram_2[dctv_out_ra_2[1:0]];
pre_first_out <= dctv_out_ra_1[6:0] == 2;
dv <= dctv_out_run_2;
end
always @ (posedge clk) begin
//X2-X7-X3-X4-X5-X6-X0-X1-*-X3-X5-X4-*-X1-X7-*
case (dcth_phin[3:0])
4'h0: x_ra0 <= 2;
4'h1: x_ra0 <= 7;
4'h2: x_ra0 <= 3;
4'h3: x_ra0 <= 4;
4'h4: x_ra0 <= 5;
4'h5: x_ra0 <= 6;
4'h6: x_ra0 <= 0;
4'h7: x_ra0 <= 1;
4'h8: x_ra0 <= 'bx;
4'h9: x_ra0 <= 3;
4'ha: x_ra0 <= 5;
4'hb: x_ra0 <= 4;
4'hc: x_ra0 <= 'bx;
4'hd: x_ra0 <= 6;
4'he: x_ra0 <= 7;
4'hf: x_ra0 <= 'bx;
endcase
case (dcth_phin[3:0])
4'h0: x_ra1 <= 1;
4'h1: x_ra1 <= 'bx;
4'h2: x_ra1 <= 3;
4'h3: x_ra1 <= 5;
4'h4: x_ra1 <= 4;
4'h5: x_ra1 <= 'bx;
4'h6: x_ra1 <= 6;
4'h7: x_ra1 <= 7;
4'h8: x_ra1 <= 'bx;
4'h9: x_ra1 <= 2;
4'ha: x_ra1 <= 7;
4'hb: x_ra1 <= 3;
4'hc: x_ra1 <= 4;
4'hd: x_ra1 <= 5;
4'he: x_ra1 <= 6;
4'hf: x_ra1 <= 0;
endcase
end
always @ (posedge clk) begin
//X2-X7-X3-X4-X5-X6-X0-X1-*-X3-X5-X4-*-X1-X7-*
case (dctv_phin[3:0])
4'h0: t_ra0 <= 2;
4'h1: t_ra0 <= 7;
4'h2: t_ra0 <= 3;
4'h3: t_ra0 <= 4;
4'h4: t_ra0 <= 5;
4'h5: t_ra0 <= 6;
4'h6: t_ra0 <= 0;
4'h7: t_ra0 <= 1;
4'h8: t_ra0 <= 'bx;
4'h9: t_ra0 <= 3;
4'ha: t_ra0 <= 5;
4'hb: t_ra0 <= 4;
4'hc: t_ra0 <= 'bx;
4'hd: t_ra0 <= 6;
4'he: t_ra0 <= 7;
4'hf: t_ra0 <= 'bx;
endcase
case (dctv_phin[3:0])
4'h0: t_ra1 <= 1;
4'h1: t_ra1 <= 'bx;
4'h2: t_ra1 <= 3;
4'h3: t_ra1 <= 5;
4'h4: t_ra1 <= 4;
4'h5: t_ra1 <= 'bx;
4'h6: t_ra1 <= 6;
4'h7: t_ra1 <= 7;
4'h8: t_ra1 <= 'bx;
4'h9: t_ra1 <= 2;
4'ha: t_ra1 <= 7;
4'hb: t_ra1 <= 3;
4'hc: t_ra1 <= 4;
4'hd: t_ra1 <= 5;
4'he: t_ra1 <= 6;
4'hf: t_ra1 <= 0;
endcase
end
dct_iv8_1d #(
.WIDTH (INPUT_WIDTH),
.OUT_WIDTH (TRANSPOSE_WIDTH),
.OUT_RSHIFT (OUT_RSHIFT1),
.B_WIDTH (DSP_B_WIDTH),
.A_WIDTH (DSP_A_WIDTH),
.P_WIDTH (DSP_P_WIDTH),
.COSINE_SHIFT (COSINE_SHIFT),
.COS_01_32 (COS_01_32),
.COS_03_32 (COS_03_32),
.COS_04_32 (COS_04_32),
.COS_05_32 (COS_05_32),
.COS_07_32 (COS_07_32),
.COS_08_32 (COS_08_32),
.COS_09_32 (COS_09_32),
.COS_11_32 (COS_11_32),
.COS_12_32 (COS_12_32),
.COS_13_32 (COS_13_32),
.COS_15_32 (COS_15_32)
) dct_iv8_1d_pass1_0_i (
.clk (clk), // input
.rst (rst), // input
.en (dcth_en0), // input
.d_in (dcth_xin0), // input[23:0]
.start (dcth_start_0_r), // input
.dout (dcth_dout0), // output[23:0]
.pre2_start_out (), // output reg
.en_out (dcth_en_out0), // output reg
.y_index (dcth_yindex0) // output[2:0] reg
);
dct_iv8_1d #(
.WIDTH (INPUT_WIDTH),
.OUT_WIDTH (TRANSPOSE_WIDTH),
.OUT_RSHIFT (OUT_RSHIFT1),
.B_WIDTH (DSP_B_WIDTH),
.A_WIDTH (DSP_A_WIDTH),
.P_WIDTH (DSP_P_WIDTH),
.COSINE_SHIFT (COSINE_SHIFT),
.COS_01_32 (COS_01_32),
.COS_03_32 (COS_03_32),
.COS_04_32 (COS_04_32),
.COS_05_32 (COS_05_32),
.COS_07_32 (COS_07_32),
.COS_08_32 (COS_08_32),
.COS_09_32 (COS_09_32),
.COS_11_32 (COS_11_32),
.COS_12_32 (COS_12_32),
.COS_13_32 (COS_13_32),
.COS_15_32 (COS_15_32)
) dct_iv8_1d_pass1_1_i (
.clk (clk), // input
.rst (rst), // input
.en (dcth_en1), // input
.d_in (dcth_xin1), // input[23:0]
.start (dcth_start_1_r), // input
.dout (dcth_dout1), // output[23:0]
.pre2_start_out (), // output reg
.en_out (dcth_en_out1), // output reg
.y_index (dcth_yindex1) // output[2:0] reg
);
//dcth_phin_run && (dcth_phin [6:0] ==9)
dct_iv8_1d #(
.WIDTH (TRANSPOSE_WIDTH),
.OUT_WIDTH (OUT_WIDTH),
.OUT_RSHIFT (OUT_RSHIFT2),
.B_WIDTH (DSP_B_WIDTH),
.A_WIDTH (DSP_A_WIDTH),
.P_WIDTH (DSP_P_WIDTH),
.COSINE_SHIFT (COSINE_SHIFT),
.COS_01_32 (COS_01_32),
.COS_03_32 (COS_03_32),
.COS_04_32 (COS_04_32),
.COS_05_32 (COS_05_32),
.COS_07_32 (COS_07_32),
.COS_08_32 (COS_08_32),
.COS_09_32 (COS_09_32),
.COS_11_32 (COS_11_32),
.COS_12_32 (COS_12_32),
.COS_13_32 (COS_13_32),
.COS_15_32 (COS_15_32)
) dct_iv8_1d_pass2_0_i (
.clk (clk), // input
.rst (rst), // input
.en (dctv_en0), // input
.d_in (dctv_xin0), // input[23:0]
.start (dctv_start_0_r), // input
.dout (dctv_dout0), // output[23:0]
.pre2_start_out (), // output reg
.en_out (dctv_en_out0), // output reg
.y_index (dctv_yindex0) // output[2:0] reg
);
dct_iv8_1d #(
.WIDTH (TRANSPOSE_WIDTH),
.OUT_WIDTH (OUT_WIDTH),
.OUT_RSHIFT (OUT_RSHIFT2),
.B_WIDTH (DSP_B_WIDTH),
.A_WIDTH (DSP_A_WIDTH),
.P_WIDTH (DSP_P_WIDTH),
.COSINE_SHIFT (COSINE_SHIFT),
.COS_01_32 (COS_01_32),
.COS_03_32 (COS_03_32),
.COS_04_32 (COS_04_32),
.COS_05_32 (COS_05_32),
.COS_07_32 (COS_07_32),
.COS_08_32 (COS_08_32),
.COS_09_32 (COS_09_32),
.COS_11_32 (COS_11_32),
.COS_12_32 (COS_12_32),
.COS_13_32 (COS_13_32),
.COS_15_32 (COS_15_32)
) dct_iv8_1d_pass2_1_i (
.clk (clk), // input
.rst (rst), // input
.en (dctv_en1), // input
.d_in (dctv_xin1), // input[23:0]
.start (dctv_start_1_r), // input
.dout (dctv_dout1), // output[23:0]
.pre2_start_out (), // output reg
.en_out (dctv_en_out1), // output reg
.y_index (dctv_yindex1) // output[2:0] reg
);
endmodule
dsp/dct_tests_01.tf
View file @ 12ed7ed1
......@@ -40,7 +40,7 @@
`timescale 1ns/1ps
// No saturation here, and no rounding as we do not need to match decoder (be bit-precise), skipping rounding adder
// will reduce needed resources
//`define DCT_INPUT_UNITY
`define DCT_INPUT_UNITY
module dct_tests_01 ();
// parameter fstname="dct_tests_01.fst";
`ifdef IVERILOG
......@@ -65,7 +65,12 @@ module dct_tests_01 ();
parameter WIDTH = 24; // input data width
// parameter OUT_WIDTH = 16; // output data width
parameter OUT_WIDTH = 24; // output data width
parameter TRANSPOSE_WIDTH = 25; // width of the transpose memory (intermediate results)
parameter OUT_RSHIFT = 3; // overall right shift of the result from input, aligned by MSB (>=3 will never cause saturation)
parameter OUT_RSHIFT2 = 0; // overall right shift for the second (vertical) pass
parameter DCT_GAP = 16; // between runs
reg RST = 1'b1;
reg CLK = 1'b0;
......@@ -83,11 +88,13 @@ module dct_tests_01 ();
wire x_we = !phase_in[3] && run_in;
reg [WIDTH-1:0] x_in;
reg [WIDTH-1:0] x_in_2d;
reg [WIDTH-1:0] x_out;
reg [WIDTH-1:0] x_ram[0:7];
wire [WIDTH-1:0] x_out_w = x_ram[x_ra];
reg start = 0;
reg start2 = 0; // second start for 2d
wire [OUT_WIDTH-1:0] y_dct; // S uppressThisWarning VEditor - simulation only
wire pre2_start_out; // S uppressThisWarning VEditor - simulation only
......@@ -103,7 +110,22 @@ module dct_tests_01 ();
wire signed [OUT_WIDTH-1:0] y_out = y_ram[y_ra]; // SuppressThisWarning VEditor - simulation only
reg signed [WIDTH-1:0] data_in[0:63];
reg signed [OUT_WIDTH-1:0] data_out[0:63];
integer i,j;
reg signed [WIDTH-1:0] d_in;
wire pre_last_in_2d;
wire pre_first_out_2d;
wire pre_busy_2d;
wire dv_2d;
wire signed [OUT_WIDTH-1:0] d_out_2d;
wire pre_last_in_2dr;
wire pre_first_out_2dr;
wire pre_busy_2dr;
wire dv_2dr;
wire signed [OUT_WIDTH-1:0] d_out_2dr;
integer i,j, i1, j1;
initial begin
for (i=0; i<64; i=i+1) begin
`ifdef DCT_INPUT_UNITY
......@@ -147,23 +169,6 @@ module dct_tests_01 ();
if (&i[2:0]) repeat (8) @(posedge CLK);
end
#1 x_in = 0;
/*
// running 'one' - just make a period == 17
repeat (7) begin
@(posedge CLK);
#1 x_in = {2'b1,{WIDTH-2{1'b0}}}; // >>x_wa;
@(posedge CLK);
#1 x_in = 0;
repeat (15) @(posedge CLK); // 16+1= 17, non-zero will go through all of the 8 x[i]
end
begin
@(posedge CLK);
#1 x_in = {2'b1,{WIDTH-2{1'b0}}};
@(posedge CLK);
#1 x_in = 0;
en_x = 0;
end
*/
repeat (64) @(posedge CLK);
$display("");
......@@ -173,9 +178,45 @@ module dct_tests_01 ();
data_out[i+4],data_out[i+5],data_out[i+6],data_out[i+7]);
end
// repeat (64) @(posedge CLK);
// $finish;
end
initial begin
wait (!RST);
while (!start) begin
@(posedge CLK);
#1;
end
for (i1 = 0; i1 < 64; i1 = i1+1) begin
@(posedge CLK);
#1;
x_in_2d = data_in[i1];
if (i1 == 63) start2 = 1;
end
for (i1 = 0; i1 < 64; i1 = i1+1) begin
@(posedge CLK);
#1;
start2 = 0;
x_in_2d = data_in[i1];
end
repeat (DCT_GAP) @(posedge CLK);
#1;
start2 = 1;
for (i1 = 0; i1 < 64; i1 = i1+1) begin
@(posedge CLK);
#1;
start2 = 0;
x_in_2d = data_in[63-i1];
end
repeat (300) @(posedge CLK);
$finish;
end
initial j = 0;
always @ (posedge CLK) begin
if (y_dv) begin
......@@ -285,7 +326,53 @@ module dct_tests_01 ();
.start (start), // input
.dout (y_dct), // output[15:0]
.pre2_start_out (pre2_start_out), // output reg
.en_out (en_out) // output reg
.en_out (en_out), // output reg
.y_index () // output[2:0] reg
);
dct_iv_8x8 #(
.INPUT_WIDTH (WIDTH),
.OUT_WIDTH (OUT_WIDTH),
.OUT_RSHIFT1 (OUT_RSHIFT),
.OUT_RSHIFT2 (OUT_RSHIFT2),
.TRANSPOSE_WIDTH (TRANSPOSE_WIDTH),
.DSP_B_WIDTH (18),
.DSP_A_WIDTH (25),
.DSP_P_WIDTH (48)
) dct_iv_8x8_i (
.clk (CLK), // input
.rst (RST), // input
.start (start || start2), // input
.xin (x_in_2d), // input[24:0] signed
.pre_last_in (pre_last_in_2d), // output reg
.pre_first_out (pre_first_out_2d), // output
.dv (dv_2d), // output
.d_out (d_out_2d), // output[24:0] signed
.pre_busy (pre_busy_2d) // output reg
);
dct_iv_8x8 #(
.INPUT_WIDTH (WIDTH),
.OUT_WIDTH (OUT_WIDTH),
.OUT_RSHIFT1 (OUT_RSHIFT),
.OUT_RSHIFT2 (OUT_RSHIFT2),
.TRANSPOSE_WIDTH (TRANSPOSE_WIDTH),
.DSP_B_WIDTH (18),
.DSP_A_WIDTH (25),
.DSP_P_WIDTH (48)
) dct_iv_8x8r_i (
.clk (CLK), // input
.rst (RST), // input
.start (pre_first_out_2d), // input
.xin (d_out_2d), // input[24:0] signed
.pre_last_in (pre_last_in_2dr), // output reg
.pre_first_out (pre_first_out_2dr), // output
.dv (dv_2dr), // output
.d_out (d_out_2dr), // output[24:0] signed
.pre_busy (pre_busy_2dr) // output reg
);
endmodule
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment