sdcc/sim/ucsim/src/sims/i8048.src/timercl.h

   1 /*
   2  * Simulator of microcontrollers (timercl.h)
   3  *
   4  * Copyright (C) 2022 Drotos Daniel
   5  *
   6  * To contact author send email to dr.dkdb@gmail.com
   7  *
   8  */
   9
  10 /* This file is part of microcontroller simulator: ucsim.
  11
  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.
  16
  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.
  21
  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
  25 02111-1307, USA. */
  26 /*@1@*/
  27
  28 #ifndef TIMERCL_HEADER
  29 #define TIMERCL_HEADER
  30
  31 #include "hwcl.h"
  32
  33
  34 enum timer_modes {
  35   tm_stop= 0,
  36   tm_counter= 1,
  37   tm_timer= 2
  38 };
  39
  40 enum timer_confs
  41   {
  42     tcfg_on     = 0,
  43     tcfg_mode   = 1,
  44     tcfg_pre16  = 2,
  45     tcfg_pre    = 3,
  46     tcfg_tmr    = 4,
  47     tcfg_ovflag = 5,
  48     tcfg_tflag  = 6,
  49     tcfg_ien    = 7,
  50     tcfg_eni    = 7,
  51     tcfg_nuof   = 8
  52   };
  53
  54 class cl_timer: public cl_hw
  55 {
  56  public:
  57   unsigned int pre, pre16, tmr;
  58   enum timer_modes mode;
  59   bool int_enabled, overflow_flag, timer_flag;
  60  public:
  61   cl_timer(class cl_uc *auc);
  62   virtual int init(void);
  63   virtual void reset(void);
  64   virtual void print_info(class cl_console_base *con);
  65   virtual int tick(int cycles);
  66   virtual void do_timer(unsigned int cyc);
  67   virtual void do_counter(unsigned int cyc);
  68   virtual void do_overflow(void);
  69   virtual unsigned int cfg_size(void) { return tcfg_nuof; }
  70   virtual const char *cfg_help(t_addr addr);
  71   virtual t_mem conf_op(cl_memory_cell *cell, t_addr addr, t_mem *val);
  72 };
  73
  74
  75 #endif
  76
  77 /* End of i8048.src/timercl.h */