2 * Simulator of microcontrollers (wdt.cc)
4 * Copyright (C) 1999,99 Drotos Daniel, Talker Bt.
6 * To contact author send email to drdani@mazsola.iit.uni-miskolc.hu
10 /* This file is part of microcontroller simulator: ucsim.
12 UCSIM is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 UCSIM is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with UCSIM; see the file COPYING. If not, write to the Free
24 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
35 cl_wdt::cl_wdt(class cl_uc *auc, long resetvalue):
36 cl_hw(auc, HW_WDT, 0, "wdt")
38 reset_value= resetvalue;
40 written_since_reset= DD_FALSE;
46 class cl_address_space *sfr= uc->address_space(MEM_SFR_ID);
50 fprintf(stderr, "No SFR to register WDT into\n");
52 //wdtrst= sfr->register_hw(WDTRST, this, (int*)0);
53 register_cell(sfr, WDTRST, &wdtrst, wtd_restore);
58 cl_wdt::write(class cl_memory_cell *cell, t_mem *val)
61 (((*val)&0xff) == 0xe1) &&
62 (wdtrst->get() == 0x1e) &&
66 /*uc->sim->app->get_commander()->
67 debug("%g sec (%d tick): Watchdog timer enabled/reset PC= 0x%06x"
68 "\n", uc->get_rtime(), uc->ticks->ticks, uc51r->PC);*/
70 written_since_reset= DD_TRUE;
74 cl_wdt::tick(int cycles)
79 if (wdt > reset_value)
81 /*sim->app->get_commander()->
82 debug("%g sec (%d ticks): Watchdog timer resets the CPU, "
83 "PC= 0x%06x\n", get_rtime(), ticks->ticks, PC);*/
85 //return(resWDTRESET);
94 written_since_reset= DD_FALSE;
99 cl_wdt::print_info(class cl_console *con)
101 con->dd_printf("%s[%d] %s counter=%d (remains=%d)\n", id_string, id,
102 (wdt>=0)?"ON":"OFF", wdt, (wdt>=0)?(reset_value-wdt):0);
106 /* End of s51.src/wdt.cc */