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cmacc_dsp48e_init_xblock.m
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% Center for Astronomy Signal Processing and Electronics Research %
% http://casper.berkeley.edu %
% Copyright (C) 2011 Suraj Gowda %
% %
% This program 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 2 of the License, or %
% (at your option) any later version. %
% %
% This program 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, write to the Free Software Foundation, Inc., %
% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function cmacc_dsp48e_init_xblock(n_bits_a, bin_pt_a, n_bits_b, bin_pt_b, conjugated, ...
full_precision, n_bits_c, bin_pt_c, quantization, overflow, cast_latency)
% cmacc_dsp48e_init_xblock
% Computes ab+c in 4 DSP48e slices, where a,b,c are complex numbers
% Validate input fields.
% Initialization script
if (n_bits_a < 1),
disp([gcb,': Input ''a'' bit width must be greater than 0.']);
return
end
if (n_bits_b < 1),
disp([gcb, ': Input ''b'' bit width must be greater than 0.']);
return
end
if (n_bits_c < 1),
disp([gcb, ': Output ''c'' bit width must be greater than 0.']);
return
end
if (n_bits_a > 25),
disp([gcb, ': Input ''a'' bit width cannot exceed 25.']);
return
end
if (n_bits_b > 18),
disp([gcb, ': Input ''b'' bit width cannot exceed 18.']);
return
end
if (bin_pt_a < 0),
disp([gcb, ': Input ''a'' binary point must be greater than 0.']);
return
end
if (bin_pt_b < 0),
disp([gcb, ': Input ''b'' binary point must be greater than 0.']);
return
end
if (bin_pt_c < 0),
disp([gcb, ': Output ''c'' binary point must be greater than 0.']);
return
end
if (bin_pt_a > n_bits_a),
disp([gcb, ': Input ''a'' binary point cannot exceed bit width.']);
return
end
if (bin_pt_b > n_bits_b),
disp([gcb, ': Input ''b'' binary point cannot exceed bit width.']);
return
end
if (bin_pt_c > n_bits_c),
disp([gcb, ': Output ''c'' binary point cannot exceed bit width.']);
return
end
bin_pt_reinterp = bin_pt_a + bin_pt_b;
if strcmp(full_precision, 'on'),
n_bits_out = n_bits_a + n_bits_b + 1;
bin_pt_out = bin_pt_a + bin_pt_b;
else,
n_bits_out = n_bits_c;
bin_pt_out = bin_pt_c;
end
%% inports
a_re = xInport('a_re');
a_im = xInport('a_im');
b_re = xInport('b_re');
b_im = xInport('b_im');
c_re = xInport('c_re');
c_im = xInport('c_im');
%% outports
d_re = xOutport('d_re');
d_im = xOutport('d_im');
%% diagram
c_re_del = xSignal;
c_re_align = xSignal;
c_re_reinterp = xSignal;
c_re_dsp_in = xSignal;
del_c_re = xBlock( struct('source', 'Delay', 'name', 'del_c_re'), struct('latency', 1), {c_re}, {c_re_del});
realign_c_re = xBlock(struct('source', 'Convert', 'name', 'realign_c_re'), ...
struct('n_bits', bin_pt_reinterp + (n_bits_a-bin_pt_a), 'bin_pt', bin_pt_reinterp, 'pipeline', 'on'), ...
{c_re_del}, {c_re_align});
reinterp_c_re = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_c_re'), ...
struct('force_arith_type', 'on', 'arith_type', 'Signed (2''s comp)', 'force_bin_pt', 'on'), ...
{c_re_align}, {c_re_reinterp});
cast_c_re = xBlock(struct('source', 'Convert', 'name', 'cast_c_re'), ...
struct('n_bits', 48, 'bin_pt', 0, 'pipeline', 'on'), {c_re_reinterp}, {c_re_dsp_in});
c_im_del = xSignal;
c_im_align = xSignal;
c_im_reinterp = xSignal;
c_im_dsp_in = xSignal;
del_c_im = xBlock( struct('source', 'Delay', 'name', 'del_c_im'), struct('latency', 1), {c_im}, {c_im_del});
realign_c_im = xBlock(struct('source', 'Convert', 'name', 'realign_c_im'), ...
struct('n_bits', bin_pt_reinterp + (n_bits_a-bin_pt_a), 'bin_pt', bin_pt_reinterp, 'pipeline', 'on'), ...
{c_im_del}, {c_im_align});
reinterp_c_im = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_c_im'), ...
struct('force_arith_type', 'on', 'arith_type', 'Signed (2''s comp)', 'force_bin_pt', 'on'), ...
{c_im_align}, {c_im_reinterp});
cast_c_im = xBlock(struct('source', 'Convert', 'name', 'cast_c_im'), ...
struct('n_bits', 48, 'bin_pt', 0, 'pipeline', 'on'), {c_im_reinterp}, {c_im_dsp_in});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert
reinterp_a_im_out1 = xSignal;
Convert_out1 = xSignal;
Convert = xBlock(struct('source', 'Convert', 'name', 'Convert'), ...
struct('n_bits', 30, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_a_im_out1}, ...
{Convert_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert1
Convert1_out1 = xSignal;
Convert1 = xBlock(struct('source', 'Convert', 'name', 'Convert1'), ...
struct('n_bits', 30, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_a_im_out1}, ...
{Convert1_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert2
reinterp_a_re_out1 = xSignal;
Convert2_out1 = xSignal;
Convert2 = xBlock(struct('source', 'Convert', 'name', 'Convert2'), ...
struct('n_bits', 30, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_a_re_out1}, ...
{Convert2_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert3
reinterp_b_im_out1 = xSignal;
Convert3_out1 = xSignal;
Convert3 = xBlock(struct('source', 'Convert', 'name', 'Convert3'), ...
struct('n_bits', 18, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_b_im_out1}, ...
{Convert3_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert4
reinterp_b_re_out1 = xSignal;
Convert4_out1 = xSignal;
Convert4 = xBlock(struct('source', 'Convert', 'name', 'Convert4'), ...
struct('n_bits', 18, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_b_re_out1}, ...
{Convert4_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert5
Convert5_out1 = xSignal;
Convert5 = xBlock(struct('source', 'Convert', 'name', 'Convert5'), ...
struct('n_bits', 30, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_a_re_out1}, ...
{Convert5_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert6
Convert6_out1 = xSignal;
Convert6 = xBlock(struct('source', 'Convert', 'name', 'Convert6'), ...
struct('n_bits', 18, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_b_re_out1}, ...
{Convert6_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/Convert7
Convert7_out1 = xSignal;
Convert7 = xBlock(struct('source', 'Convert', 'name', 'Convert7'), ...
struct('n_bits', 18, ...
'bin_pt', 0, ...
'pipeline', 'on'), ...
{reinterp_b_im_out1}, ...
{Convert7_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/DSP48E_0
opmode0_out1 = xSignal;
alumode0_out1 = xSignal;
carryin0_out1 = xSignal;
carryinsel0_out1 = xSignal;
DSP48E_0_out1 = xSignal;
DSP48E_0_out2 = xSignal;
DSP48E_0 = xBlock(struct('source', 'DSP48E', 'name', 'DSP48E_0'), ...
struct('use_pcout', 'on', 'use_creg', 'on'), ...
{Convert1_out1, Convert6_out1, c_im_dsp_in, opmode0_out1, alumode0_out1, carryin0_out1, carryinsel0_out1}, ...
{DSP48E_0_out1, DSP48E_0_out2});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/DSP48E_1
opmode1_out1 = xSignal;
alumode1_out1 = xSignal;
carryin1_out1 = xSignal;
carryinsel1_out1 = xSignal;
DSP48E_1_out1 = xSignal;
DSP48E_1 = xBlock(struct('source', 'DSP48E', 'name', 'DSP48E_1'), ...
struct('use_pcin', 'on', ...
'pipeline_a', '2', ...
'pipeline_b', '2'), ...
{Convert5_out1, Convert7_out1, DSP48E_0_out2, opmode1_out1, alumode1_out1, carryin1_out1, carryinsel1_out1}, ...
{DSP48E_1_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/DSP48E_2
opmode2_out1 = xSignal;
alumode2_out1 = xSignal;
carryin2_out1 = xSignal;
carryinsel2_out1 = xSignal;
DSP48E_2_out1 = xSignal;
DSP48E_2_out2 = xSignal;
DSP48E_2 = xBlock(struct('source', 'DSP48E', 'name', 'DSP48E_2'), ...
struct('use_pcout', 'on', 'use_creg', 'on'), ...
{Convert_out1, Convert3_out1, c_re_dsp_in, opmode2_out1, alumode2_out1, carryin2_out1, carryinsel2_out1}, ...
{DSP48E_2_out1, DSP48E_2_out2});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/DSP48E_3
opmode3_out1 = xSignal;
alumode3_out1 = xSignal;
carryin3_out1 = xSignal;
carryinsel3_out1 = xSignal;
DSP48E_3_out1 = xSignal;
DSP48E_3 = xBlock(struct('source', 'DSP48E', 'name', 'DSP48E_3'), ...
struct('use_pcin', 'on', ...
'pipeline_a', '2', ...
'pipeline_b', '2'), ...
{Convert2_out1, Convert4_out1, DSP48E_2_out2, opmode3_out1, alumode3_out1, carryin3_out1, carryinsel3_out1}, ...
{DSP48E_3_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/alumode0
alumode0 = xBlock(struct('source', 'Constant', 'name', 'alumode0'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 4, ...
'bin_pt', 0), ...
{}, ...
{alumode0_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/alumode1
alumode1 = xBlock(struct('source', 'Constant', 'name', 'alumode1'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 4, ...
'bin_pt', 0), ...
{}, ...
{alumode1_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/alumode2
alumode2 = xBlock(struct('source', 'Constant', 'name', 'alumode2'), ...
struct('arith_type', 'Unsigned', ...
'const', 3, ...
'n_bits', 4, ...
'bin_pt', 0), ...
{}, ...
{alumode2_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/alumode3
alumode3 = xBlock(struct('source', 'Constant', 'name', 'alumode3'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 4, ...
'bin_pt', 0), ...
{}, ...
{alumode3_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryin0
carryin0 = xBlock(struct('source', 'Constant', 'name', 'carryin0'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 1, ...
'bin_pt', 0), ...
{}, ...
{carryin0_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryin1
carryin1 = xBlock(struct('source', 'Constant', 'name', 'carryin1'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 1, ...
'bin_pt', 0), ...
{}, ...
{carryin1_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryin2
carryin2 = xBlock(struct('source', 'Constant', 'name', 'carryin2'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 1, ...
'bin_pt', 0), ...
{}, ...
{carryin2_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryin3
carryin3 = xBlock(struct('source', 'Constant', 'name', 'carryin3'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 1, ...
'bin_pt', 0), ...
{}, ...
{carryin3_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryinsel0
carryinsel0 = xBlock(struct('source', 'Constant', 'name', 'carryinsel0'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 3, ...
'bin_pt', 0), ...
{}, ...
{carryinsel0_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryinsel1
carryinsel1 = xBlock(struct('source', 'Constant', 'name', 'carryinsel1'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 3, ...
'bin_pt', 0), ...
{}, ...
{carryinsel1_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryinsel2
carryinsel2 = xBlock(struct('source', 'Constant', 'name', 'carryinsel2'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 3, ...
'bin_pt', 0), ...
{}, ...
{carryinsel2_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/carryinsel3
carryinsel3 = xBlock(struct('source', 'Constant', 'name', 'carryinsel3'), ...
struct('arith_type', 'Unsigned', ...
'const', 0, ...
'n_bits', 3, ...
'bin_pt', 0), ...
{}, ...
{carryinsel3_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/cast_d_im
reinterp_d_im_out1 = xSignal;
cast_d_im = xBlock(struct('source', 'Convert', 'name', 'cast_d_im'), ...
struct('n_bits', n_bits_out, ...
'bin_pt', bin_pt_out, ...
'latency', cast_latency, ...
'quantization', quantization, 'overflow', overflow, ...
'pipeline', 'on'), ...
{reinterp_d_im_out1}, ...
{d_im});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/cast_d_re
reinterp_d_re_out1 = xSignal;
cast_d_re = xBlock(struct('source', 'Convert', 'name', 'cast_d_re'), ...
struct('n_bits', n_bits_out, ...
'bin_pt', bin_pt_out, ...
'latency', cast_latency, ...
'quantization', quantization, 'overflow', overflow, ...
'pipeline', 'on'), ...
{reinterp_d_re_out1}, ...
{d_re});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/opmode0
opmode0 = xBlock(struct('source', 'Constant', 'name', 'opmode0'), ...
struct('arith_type', 'Unsigned', ...
'const', 53, ...
'n_bits', 7, ...
'bin_pt', 0), ...
{}, ...
{opmode0_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/opmode1
opmode1 = xBlock(struct('source', 'Constant', 'name', 'opmode1'), ...
struct('arith_type', 'Unsigned', ...
'const', 21, ...
'n_bits', 7, ...
'bin_pt', 0), ...
{}, ...
{opmode1_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/opmode2
opmode2 = xBlock(struct('source', 'Constant', 'name', 'opmode2'), ...
struct('arith_type', 'Unsigned', ...
'const', 53, ...
'n_bits', 7, ...
'bin_pt', 0), ...
{}, ...
{opmode2_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/opmode3
opmode3 = xBlock(struct('source', 'Constant', 'name', 'opmode3'), ...
struct('arith_type', 'Unsigned', ...
'const', 21, ...
'n_bits', 7, ...
'bin_pt', 0), ...
{}, ...
{opmode3_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/realign_a_im
realign_a_im_out1 = xSignal;
realign_a_im = xBlock(struct('source', 'Convert', 'name', 'realign_a_im'), ...
struct('n_bits', n_bits_a, ...
'bin_pt', bin_pt_a, ...
'pipeline', 'on'), ...
{a_im}, ...
{realign_a_im_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/realign_a_re
realign_a_re_out1 = xSignal;
realign_a_re = xBlock(struct('source', 'Convert', 'name', 'realign_a_re'), ...
struct('n_bits', n_bits_a, ...
'bin_pt', bin_pt_a, ...
'pipeline', 'on'), ...
{a_re}, ...
{realign_a_re_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/realign_b_im
realign_b_im_out1 = xSignal;
realign_b_im = xBlock(struct('source', 'Convert', 'name', 'realign_b_im'), ...
struct('n_bits', n_bits_b, ...
'bin_pt', bin_pt_b, ...
'pipeline', 'on'), ...
{b_im}, ...
{realign_b_im_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/realign_b_re
realign_b_re_out1 = xSignal;
realign_b_re = xBlock(struct('source', 'Convert', 'name', 'realign_b_re'), ...
struct('n_bits', n_bits_b, ...
'bin_pt', bin_pt_b, ...
'pipeline', 'on'), ...
{b_re}, ...
{realign_b_re_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/reinterp_a_im
reinterp_a_im = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_a_im'), ...
struct('force_arith_type', 'on', ...
'arith_type', 'Signed (2''s comp)', ...
'force_bin_pt', 'on'), ...
{realign_a_im_out1}, ...
{reinterp_a_im_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/reinterp_a_re
reinterp_a_re = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_a_re'), ...
struct('force_arith_type', 'on', ...
'arith_type', 'Signed (2''s comp)', ...
'force_bin_pt', 'on'), ...
{realign_a_re_out1}, ...
{reinterp_a_re_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/reinterp_b_im
reinterp_b_im = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_b_im'), ...
struct('force_arith_type', 'on', ...
'arith_type', 'Signed (2''s comp)', ...
'force_bin_pt', 'on'), ...
{realign_b_im_out1}, ...
{reinterp_b_im_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/reinterp_b_re
reinterp_b_re = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_b_re'), ...
struct('force_arith_type', 'on', ...
'arith_type', 'Signed (2''s comp)', ...
'force_bin_pt', 'on'), ...
{realign_b_re_out1}, ...
{reinterp_b_re_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/reinterp_d_im
reinterp_d_im = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_d_im'), ...
struct('force_arith_type', 'on', ...
'arith_type', 'Signed (2''s comp)', ...
'force_bin_pt', 'on', ...
'bin_pt', bin_pt_reinterp), ...
{DSP48E_1_out1}, ...
{reinterp_d_im_out1});
% block: twiddle_dsp48e_test/twiddle_general_dsp48e/cmult/reinterp_d_re
reinterp_d_re = xBlock(struct('source', 'Reinterpret', 'name', 'reinterp_d_re'), ...
struct('force_arith_type', 'on', ...
'arith_type', 'Signed (2''s comp)', ...
'force_bin_pt', 'on', ...
'bin_pt', bin_pt_reinterp), ...
{DSP48E_3_out1}, ...
{reinterp_d_re_out1});
end