src/Port.cpp

   1 /*
   2  *      avr-sim: An atmel AVR simulator
   3  *  Copyright (C) 2008  Tom Haber
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include "Port.h"
  20 #include "Registers.h"
  21 #include <cstring>
  22
  23 namespace avr {
  24
  25         Port::Port(Bus & bus, const std::string & name, unsigned int mask)
  26                 : Hardware(bus), name(name), mask(mask) {
  27         }
  28
  29         Port::~Port() {
  30         }
  31
  32         bool Port::attachReg(const char *name, IORegister *reg) {
  33                 if( strcmp(name, "port") == 0 )
  34                         port = reg;
  35                 else if( strcmp(name, "pin") == 0 )
  36                         pin = reg;
  37                 else if( strcmp(name, "ddr") == 0 )
  38                         ddr = reg;
  39                 else
  40                         return false;
  41
  42                 reg->registerHW(this);
  43                 return true;
  44         }
  45
  46         void Port::regChanged( IORegister *reg ) {
  47                 if( reg == port )
  48                     ;
  49                 else if( reg == pin )
  50                         ;
  51                 else if( reg == ddr )
  52                         ;
  53         }
  54
  55         void Port::step() {
  56
  57         }
  58
  59 }