qpcpp/qs/source/qs_f64.cpp

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//****************************************************************************
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// Product: QS/C++
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// Last Updated for Version: 5.1.0
// Date of the Last Update: Sep 23, 2013
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//
// Q u a n t u m L e a P s
// ---------------------------
// innovating embedded systems
//
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// Copyright (C) 2002-2013 Quantum Leaps, LLC. All rights reserved.
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//
// This program is open source 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
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// (at your option) any later version.
//
// Alternatively, this program may be distributed and modified under the
// terms of Quantum Leaps commercial licenses, which expressly supersede
// the GNU General Public License and are specifically designed for
// licensees interested in retaining the proprietary status of their code.
//
// 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, see <http://www.gnu.org/licenses/>.
//
// Contact information:
// Quantum Leaps Web sites: http://www.quantum-leaps.com
// http://www.state-machine.com
// e-mail: info@quantum-leaps.com
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//****************************************************************************
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#include "qs_pkg.h"
/// \file
/// \ingroup qs
/// \brief QS::f64() implementation
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namespace QP {
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//............................................................................
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void QS::f64(uint8_t format, float64_t const d) {
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union F64Rep {
float64_t d;
struct UInt2 {
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uint32_t u1;
uint32_t u2;
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} i;
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} fu64; // the internal binary representation
uint8_t chksum_ = priv_.chksum;
uint8_t *buf_ = priv_.buf;
QSCtr head_ = priv_.head;
QSCtr end_ = priv_.end;
int_t i;
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fu64.d = d; // assign the binary representation
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priv_.used += static_cast<QSCtr>(9); // 9 bytes about to be added
QS_INSERT_ESC_BYTE(format) // insert the format byte
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for (i = static_cast<int_t>(4); i != static_cast<int_t>(0); --i) {
format = static_cast<uint8_t>(fu64.i.u1);
QS_INSERT_ESC_BYTE(format)
fu64.i.u1 >>= 8;
}
for (i = static_cast<int_t>(4); i != static_cast<int_t>(0); --i) {
format = static_cast<uint8_t>(fu64.i.u2);
QS_INSERT_ESC_BYTE(format)
fu64.i.u2 >>= 8;
}
priv_.head = head_; // save the head
priv_.chksum = chksum_; // save the checksum
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}
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} // namespace QP