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/*
Copyright (C) 2001 Salvador E. Tropea
This file is part of gpsim.
gpsim 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, or (at your option)
any later version.
gpsim 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 gpsim; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include "command.h"
#include "cmd_frequency.h"
#include "../src/pic-processor.h"
using namespace std;
static cmd_options cmd_frequency_options[] =
{
NULL,0,0
};
cmd_frequency::cmd_frequency(void)
{
name = "frequency";
brief_doc = "Set the clock frequency";
long_doc = "";
long_doc = long_doc + "\nfrequency [value]\n" +
"\tThis command sets the clock frequency. By default gpsim uses 4 MHz" +
"\tas clock. The clock frequency is used to compute time in seconds." +
"\tUse this command to adjust this value." +
"\tIf no value is provided this command prints the current clock." +
"\tNote that PICs have an instruction clock that's a forth of the" +
"\texternal clock. This value is the external clock." +
"\n";
op = cmd_frequency_options;
}
void cmd_frequency::set(double value)
{
if(!have_cpu(1))
return;
if(value<0) {
cout << "Error: the clock must be a positive value.\n";
return;
}
cpu->set_frequency(value);
}
void cmd_frequency::print()
{
if(!have_cpu(1))
return;
cout << "Clock frequency: " << cpu->time_to_cycles(1.0)/1e6 << " MHz.\n";
}
cmd_frequency frequency;
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