/[gxemul]/trunk/src/devices/dev_mc146818.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 21 by dpavlin, Mon Oct 8 16:19:23 2007 UTC revision 22 by dpavlin, Mon Oct 8 16:19:37 2007 UTC
# Line 1  Line 1 
1  /*  /*
2   *  Copyright (C) 2003-2005  Anders Gavare.  All rights reserved.   *  Copyright (C) 2003-2006  Anders Gavare.  All rights reserved.
3   *   *
4   *  Redistribution and use in source and binary forms, with or without   *  Redistribution and use in source and binary forms, with or without
5   *  modification, are permitted provided that the following conditions are met:   *  modification, are permitted provided that the following conditions are met:
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *     *  
27   *   *
28   *  $Id: dev_mc146818.c,v 1.80 2005/11/20 11:28:45 debug Exp $   *  $Id: dev_mc146818.c,v 1.84 2006/01/17 05:55:53 debug Exp $
29   *     *  
30   *  MC146818 real-time clock, used by many different machines types.   *  MC146818 real-time clock, used by many different machines types.
31   *  (DS1687 as used in some other machines is also similar to the MC146818.)   *  (DS1687 as used in some other machines is also similar to the MC146818.)
# Line 319  int dev_mc146818_access(struct cpu *cpu, Line 319  int dev_mc146818_access(struct cpu *cpu,
319          struct tm *tmp;          struct tm *tmp;
320          time_t timet;          time_t timet;
321          struct mc_data *d = extra;          struct mc_data *d = extra;
322          int i, relative_addr = r;          int relative_addr = r;
323            size_t i;
324    
325          relative_addr /= d->addrdiv;          relative_addr /= d->addrdiv;
326    
# Line 506  int dev_mc146818_access(struct cpu *cpu, Line 507  int dev_mc146818_access(struct cpu *cpu,
507                  case 0x128:                  case 0x128:
508                          d->reg[relative_addr] = data[0];                          d->reg[relative_addr] = data[0];
509                          if (data[0] & 8) {                          if (data[0] & 8) {
510                                    int j;
511    
512                                  /*  Used on SGI to power off the machine.  */                                  /*  Used on SGI to power off the machine.  */
513                                  fatal("[ md146818: power off ]\n");                                  fatal("[ md146818: power off ]\n");
514                                  for (i=0; i<cpu->machine->ncpus; i++)                                  for (j=0; j<cpu->machine->ncpus; j++)
515                                          cpu->machine->cpus[i]->running = 0;                                          cpu->machine->cpus[j]->running = 0;
516                                  cpu->machine->                                  cpu->machine->
517                                      exit_without_entering_debugger = 1;                                      exit_without_entering_debugger = 1;
518                          }                          }
# Line 639  void dev_mc146818_init(struct machine *m Line 642  void dev_mc146818_init(struct machine *m
642    
643          if (machine->machine_type != MACHINE_PREP) {          if (machine->machine_type != MACHINE_PREP) {
644                  /*  NetBSD/prep has a really ugly clock detection code;                  /*  NetBSD/prep has a really ugly clock detection code;
645                      all other machines/OSes don't need this.  */                      no other machines/OSes don't need this.  */
646                  d->ugly_netbsd_prep_hack_done = NETBSD_HACK_DONE;                  d->ugly_netbsd_prep_hack_done = NETBSD_HACK_DONE;
647          }          }
648    
# Line 690  void dev_mc146818_init(struct machine *m Line 693  void dev_mc146818_init(struct machine *m
693           *  TODO:  Find out if this messes up Sprite emulation; if so, then           *  TODO:  Find out if this messes up Sprite emulation; if so, then
694           *         this hack has to be removed.           *         this hack has to be removed.
695           */           */
696          d->uip_threshold = 5;          d->uip_threshold = 8;
697    
698          if (access_style == MC146818_ARC_JAZZ)          if (access_style == MC146818_ARC_JAZZ)
699                  memory_device_register(mem, "mc146818_jazz", 0x90000070ULL,                  memory_device_register(mem, "mc146818_jazz", 0x90000070ULL,
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