mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-08-29 01:03:29 +02:00
Stephen Williams
bcaf7355ca
Remove the #ident and $Log$ strings from all the header files and almost all of the C/C++ source files. I think it is better to get this done all at once, then to wait for each of the files to be touched and edited in unrelated patches.
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/*
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* Copyright (c) 2001-2005 Stephen Williams ([email protected])
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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# include "bufif.h"
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# include "schedule.h"
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# include "statistics.h"
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# include <iostream>
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# include <assert.h>
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vvp_fun_bufif::vvp_fun_bufif(bool en_invert, bool out_invert,
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unsigned str0, unsigned str1)
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: pol_(en_invert? 1 : 0), inv_(out_invert? 1 : 0)
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{
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drive0_ = str0;
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drive1_ = str1;
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count_functors_bufif += 1;
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}
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void vvp_fun_bufif::recv_vec4(vvp_net_ptr_t ptr, const vvp_vector4_t&bit,
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vvp_context_t)
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{
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switch (ptr.port()) {
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case 0:
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bit_ = inv_? ~bit : bit;
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break;
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case 1:
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en_ = pol_? ~bit : bit;
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break;
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default:
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return;
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}
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vvp_vector8_t out (bit.size());
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for (unsigned idx = 0 ; idx < bit.size() ; idx += 1) {
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vvp_bit4_t b_en = en_.value(idx);
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vvp_bit4_t b_bit = bit_.value(idx);
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switch (b_en) {
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case BIT4_0:
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out.set_bit(idx, vvp_scalar_t(BIT4_Z,drive0_,drive1_));
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break;
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case BIT4_1:
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if (bit4_is_xz(b_bit))
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out.set_bit(idx, vvp_scalar_t(BIT4_X,drive0_,drive1_));
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else
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out.set_bit(idx, vvp_scalar_t(b_bit,drive0_,drive1_));
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break;
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default:
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switch (b_bit) {
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case BIT4_0:
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out.set_bit(idx, vvp_scalar_t(BIT4_X,drive0_,0));
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break;
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case BIT4_1:
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out.set_bit(idx, vvp_scalar_t(BIT4_X,0,drive1_));
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break;
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default:
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out.set_bit(idx, vvp_scalar_t(BIT4_X,drive0_,drive1_));
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break;
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}
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break;
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}
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}
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vvp_send_vec8(ptr.ptr()->out, out);
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}
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