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710 lines
21 KiB
C
710 lines
21 KiB
C
/*****************************************************************************
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* Product: Calculator Example with percentage calculations
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* Last Updated for Version: 4.5.04
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* Date of the Last Update: Jan 07, 2013
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*
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* Q u a n t u m L e a P s
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* ---------------------------
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* innovating embedded systems
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*
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* Copyright (C) 2002-2013 Quantum Leaps, LLC. All rights reserved.
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*
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* This program is open source software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* Alternatively, this program may be distributed and modified under the
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* terms of Quantum Leaps commercial licenses, which expressly supersede
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* the GNU General Public License and are specifically designed for
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* licensees interested in retaining the proprietary status of their code.
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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, see <http://www.gnu.org/licenses/>.
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*
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* Contact information:
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* Quantum Leaps Web sites: http://www.quantum-leaps.com
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* http://www.state-machine.com
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* e-mail: info@quantum-leaps.com
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*****************************************************************************/
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#include "qp_port.h" /* the port of the QP framework */
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#include "bsp.h" /* board support package */
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#include "calc.h"
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typedef struct CalcTag {
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QHsm super; /* derives from QHsm */
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double operand1; /* the value of operand 1 */
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uint8_t operator; /* operator key entered */
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} Calc;
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static QState Calc_initial (Calc * const me, QEvt const * const e);
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static QState Calc_on (Calc * const me, QEvt const * const e);
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static QState Calc_error (Calc * const me, QEvt const * const e);
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static QState Calc_ready (Calc * const me, QEvt const * const e);
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static QState Calc_result (Calc * const me, QEvt const * const e);
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static QState Calc_begin (Calc * const me, QEvt const * const e);
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static QState Calc_negated1 (Calc * const me, QEvt const * const e);
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static QState Calc_operand1 (Calc * const me, QEvt const * const e);
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static QState Calc_zero1 (Calc * const me, QEvt const * const e);
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static QState Calc_int1 (Calc * const me, QEvt const * const e);
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static QState Calc_frac1 (Calc * const me, QEvt const * const e);
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static QState Calc_opEntered(Calc * const me, QEvt const * const e);
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static QState Calc_negated2 (Calc * const me, QEvt const * const e);
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static QState Calc_operand2 (Calc * const me, QEvt const * const e);
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static QState Calc_zero2 (Calc * const me, QEvt const * const e);
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static QState Calc_int2 (Calc * const me, QEvt const * const e);
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static QState Calc_frac2 (Calc * const me, QEvt const * const e);
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static QState Calc_final (Calc * const me, QEvt const * const e);
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/* Local objects -----------------------------------------------------------*/
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static Calc l_calc; /* the calculator instance */
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/* Global objects ----------------------------------------------------------*/
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QHsm * const the_calc = (QHsm *)&l_calc;
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/*..........................................................................*/
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void Calc_ctor(void) {
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Calc *me = &l_calc;
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QHsm_ctor(&me->super, Q_STATE_CAST(&Calc_initial));
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}
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/* HSM definition ----------------------------------------------------------*/
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QState Calc_initial(Calc * const me, QEvt const * const e) {
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(void)e; /* avoid the "unreferenced parameter" warning */
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BSP_clear();
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return Q_TRAN(&Calc_on);
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}
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/*..........................................................................*/
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QState Calc_on(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("on-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("on-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case Q_INIT_SIG: {
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BSP_message("on-INIT;");
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status = Q_TRAN(&Calc_ready);
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break;
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}
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case C_SIG: {
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BSP_clear();
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status = Q_TRAN(&Calc_on); /* transition-to-self */
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break;
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}
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case OFF_SIG: {
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status = Q_TRAN(&Calc_final);
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break;
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}
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default: {
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status = Q_SUPER(&QHsm_top);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_error(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("error-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("error-EXIT;");
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status = Q_HANDLED();
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break;
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}
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default: {
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status = Q_SUPER(&Calc_on);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_ready(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("ready-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("ready-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case Q_INIT_SIG: {
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BSP_message("ready-INIT;");
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status = Q_TRAN(&Calc_begin);
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break;
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}
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case DIGIT_0_SIG: {
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BSP_clear();
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status = Q_TRAN(&Calc_zero1);
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break;
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}
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case DIGIT_1_9_SIG: {
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BSP_clear();
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_int1);
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break;
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}
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case POINT_SIG: {
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BSP_clear();
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BSP_insert((int)'0');
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BSP_insert((int)'.');
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status = Q_TRAN(&Calc_frac1);
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break;
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}
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case OPER_SIG: {
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me->operand1 = BSP_get_value();
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me->operator = ((CalcEvt const *)e)->key_code;
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status = Q_TRAN(&Calc_opEntered);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_on);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_result(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("result-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("result-EXIT;");
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status = Q_HANDLED();
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break;
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}
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default: {
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status = Q_SUPER(&Calc_ready);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_begin(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("begin-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("begin-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case OPER_SIG: {
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if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
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status = Q_TRAN(&Calc_negated1);
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}
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else {
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status = Q_UNHANDLED();
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}
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break;
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}
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default: {
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status = Q_SUPER(&Calc_ready);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_negated1(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("negated1-ENTRY;");
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BSP_negate();
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("negated1-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case OPER_SIG: {
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if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
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; /* explicitly ignore */
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status = Q_HANDLED(); /* event handled */
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}
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else {
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status = Q_HANDLED();
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}
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break;
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}
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case CE_SIG: {
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BSP_clear();
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status = Q_TRAN(&Calc_begin);
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break;
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}
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case DIGIT_0_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_zero1);
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break;
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}
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case DIGIT_1_9_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_int1);
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break;
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}
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case POINT_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_frac1);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_on);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_negated2(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("negated2-ENTRY;");
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BSP_negate();
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("negated2-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case OPER_SIG: {
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if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
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; /* explicitly ignore */
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status = Q_HANDLED(); /* event handled */
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}
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else {
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status = Q_HANDLED();
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}
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break;
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}
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case CE_SIG: {
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BSP_clear();
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status = Q_TRAN(&Calc_opEntered);
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break;
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}
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case DIGIT_0_SIG: {
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status = Q_TRAN(&Calc_zero2);
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break;
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}
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case DIGIT_1_9_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_int2);
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break;
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}
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case POINT_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_frac2);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_on);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_operand1(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("operand1-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("operand1-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case CE_SIG: {
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BSP_clear();
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status = Q_TRAN(&Calc_begin);
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break;
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}
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case OPER_SIG: {
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me->operand1 = BSP_get_value();
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me->operator = ((CalcEvt const *)e)->key_code;
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status = Q_TRAN(&Calc_opEntered);
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break;
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}
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case EQUALS_SIG: {
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status = Q_TRAN(&Calc_result);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_on);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_zero1(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("zero1-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("zero1-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case DIGIT_0_SIG: {
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; /* explicitly ignore */
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status = Q_HANDLED();
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break;
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}
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case DIGIT_1_9_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_int1);
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break;
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}
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case POINT_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_frac1);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_operand1);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_int1(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("int1-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("int1-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case DIGIT_0_SIG: /* intentionally fall through */
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case DIGIT_1_9_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_HANDLED();
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break;
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}
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case POINT_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_frac1);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_operand1);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_frac1(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("frac1-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("frac1-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case DIGIT_0_SIG: /* intentionally fall through */
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case DIGIT_1_9_SIG: {
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_HANDLED();
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break;
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}
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case POINT_SIG: {
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; /* explicitly ignore */
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status = Q_HANDLED();
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break;
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}
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default: {
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status = Q_SUPER(&Calc_operand1);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_opEntered(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("opEntered-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("opEntered-EXIT;");
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status = Q_HANDLED();
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break;
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}
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case OPER_SIG: {
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if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
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BSP_clear();
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status = Q_TRAN(&Calc_negated2);
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}
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break;
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}
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case DIGIT_0_SIG: {
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BSP_clear();
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status = Q_TRAN(&Calc_zero2);
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break;
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}
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case DIGIT_1_9_SIG: {
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BSP_clear();
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BSP_insert(((CalcEvt const *)e)->key_code);
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status = Q_TRAN(&Calc_int2);
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break;
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}
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case POINT_SIG: {
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BSP_clear();
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BSP_insert((int)'0');
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BSP_insert((int)'.');
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status = Q_TRAN(&Calc_frac2);
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break;
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}
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default: {
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status = Q_SUPER(&Calc_on);
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break;
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}
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}
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return status;
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}
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/*..........................................................................*/
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QState Calc_operand2(Calc * const me, QEvt const * const e) {
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QState status;
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switch (e->sig) {
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case Q_ENTRY_SIG: {
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BSP_message("operand2-ENTRY;");
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status = Q_HANDLED();
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break;
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}
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case Q_EXIT_SIG: {
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BSP_message("operand2-EXIT;");
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status = Q_HANDLED();
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break;
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}
|
|
case CE_SIG: {
|
|
BSP_clear();
|
|
status = Q_TRAN(&Calc_opEntered);
|
|
break;
|
|
}
|
|
case OPER_SIG: {
|
|
if (BSP_eval(me->operand1, me->operator, BSP_get_value())) {
|
|
me->operand1 = BSP_get_value();
|
|
me->operator = ((CalcEvt const *)e)->key_code;
|
|
status = Q_TRAN(&Calc_opEntered);
|
|
}
|
|
else {
|
|
status = Q_TRAN(&Calc_error);
|
|
}
|
|
break;
|
|
}
|
|
case EQUALS_SIG: {
|
|
if (BSP_eval(me->operand1, me->operator, BSP_get_value())) {
|
|
status = Q_TRAN(&Calc_result);
|
|
}
|
|
else {
|
|
status = Q_TRAN(&Calc_error);
|
|
}
|
|
break;
|
|
}
|
|
case PERCENT_SIG: {
|
|
double operand2 = 0.0;
|
|
switch (me->operator) {
|
|
case KEY_PLUS:
|
|
case KEY_MINUS: {
|
|
operand2 = (me->operand1 * BSP_get_value())/100.0;
|
|
break;
|
|
}
|
|
case KEY_MULT:
|
|
case KEY_DIVIDE: {
|
|
operand2 = BSP_get_value()/100.0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (BSP_eval(me->operand1, me->operator, operand2)) {
|
|
status = Q_TRAN(&Calc_result);
|
|
}
|
|
else {
|
|
status = Q_TRAN(&Calc_error);
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
status = Q_SUPER(&Calc_on);
|
|
break;
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
/*..........................................................................*/
|
|
QState Calc_zero2(Calc * const me, QEvt const * const e) {
|
|
QState status;
|
|
switch (e->sig) {
|
|
case Q_ENTRY_SIG: {
|
|
BSP_message("zero2-ENTRY;");
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case Q_EXIT_SIG: {
|
|
BSP_message("zero2-EXIT;");
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case DIGIT_0_SIG: {
|
|
; /* explicitly ignore */
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case DIGIT_1_9_SIG: {
|
|
BSP_insert(((CalcEvt const *)e)->key_code);
|
|
status = Q_TRAN(&Calc_int2);
|
|
break;
|
|
}
|
|
case POINT_SIG: {
|
|
BSP_insert(((CalcEvt const *)e)->key_code);
|
|
status = Q_TRAN(&Calc_frac2);
|
|
}
|
|
default: {
|
|
status = Q_SUPER(&Calc_operand2);
|
|
break;
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
/*..........................................................................*/
|
|
QState Calc_int2(Calc * const me, QEvt const * const e) {
|
|
QState status;
|
|
switch (e->sig) {
|
|
case Q_ENTRY_SIG: {
|
|
BSP_message("int2-ENTRY;");
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case Q_EXIT_SIG: {
|
|
BSP_message("int2-EXIT;");
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case DIGIT_0_SIG: /* intentionally fall through */
|
|
case DIGIT_1_9_SIG: {
|
|
BSP_insert(((CalcEvt const *)e)->key_code);
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case POINT_SIG: {
|
|
BSP_insert(((CalcEvt const *)e)->key_code);
|
|
status = Q_TRAN(&Calc_frac2);
|
|
break;
|
|
}
|
|
default: {
|
|
status = Q_SUPER(&Calc_operand2);
|
|
break;
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
/*..........................................................................*/
|
|
QState Calc_frac2(Calc * const me, QEvt const * const e) {
|
|
QState status;
|
|
switch (e->sig) {
|
|
case Q_ENTRY_SIG: {
|
|
BSP_message("frac2-ENTRY;");
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case Q_EXIT_SIG: {
|
|
BSP_message("frac2-EXIT;");
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case DIGIT_0_SIG: /* intentionally fall through */
|
|
case DIGIT_1_9_SIG: {
|
|
BSP_insert(((CalcEvt const *)e)->key_code);
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
case POINT_SIG: {
|
|
; /* explicitly ignore */
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
default: {
|
|
status = Q_SUPER(&Calc_operand2);
|
|
break;
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
/*..........................................................................*/
|
|
QState Calc_final(Calc * const me, QEvt const * const e) {
|
|
QState status;
|
|
switch (e->sig) {
|
|
case Q_ENTRY_SIG: {
|
|
BSP_message("final-ENTRY;");
|
|
BSP_exit();
|
|
status = Q_HANDLED();
|
|
break;
|
|
}
|
|
default: {
|
|
status = Q_SUPER(&QHsm_top);
|
|
break;
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
|