128 lines
5.9 KiB
C
128 lines
5.9 KiB
C
/* sim_timer.h: simulator timer library headers
|
|
|
|
Copyright (c) 1993-2008, Robert M Supnik
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
|
copy of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom the
|
|
Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
Except as contained in this notice, the name of Robert M Supnik shall not be
|
|
used in advertising or otherwise to promote the sale, use or other dealings
|
|
in this Software without prior written authorization from Robert M Supnik.
|
|
|
|
28-Apr-07 RMS Added sim_rtc_init_all
|
|
17-Oct-06 RMS Added idle support
|
|
02-Jan-04 RMS Split out from SCP
|
|
*/
|
|
|
|
#ifndef SIM_TIMER_H_
|
|
#define SIM_TIMER_H_ 0
|
|
|
|
/* Pick up a struct timespec definition if it is available */
|
|
#include <time.h>
|
|
#if defined(SIM_ASYNCH_IO) || defined(USE_READER_THREAD)
|
|
#include <pthread.h>
|
|
#endif
|
|
|
|
#if defined (__APPLE__)
|
|
#define HAVE_STRUCT_TIMESPEC 1 /* OSX defined the structure but doesn't tell us */
|
|
#endif
|
|
|
|
/* on HP-UX, CLOCK_REALTIME is enum, not preprocessor define */
|
|
#if !defined(CLOCK_REALTIME) && !defined(__hpux)
|
|
#define CLOCK_REALTIME 1
|
|
#define NEED_CLOCK_GETTIME 1
|
|
#if !defined(HAVE_STRUCT_TIMESPEC)
|
|
#define HAVE_STRUCT_TIMESPEC 1
|
|
#if !defined(_TIMESPEC_DEFINED)
|
|
#define _TIMESPEC_DEFINED
|
|
struct timespec {
|
|
long tv_sec;
|
|
long tv_nsec;
|
|
};
|
|
#endif /* _TIMESPEC_DEFINED */
|
|
#endif /* HAVE_STRUCT_TIMESPEC */
|
|
int clock_gettime(int clock_id, struct timespec *tp);
|
|
#endif
|
|
|
|
|
|
#define SIM_NTIMERS 8 /* # timers */
|
|
#define SIM_TMAX 500 /* max timer makeup */
|
|
|
|
#define SIM_INITIAL_IPS 50000 /* uncalibrated assumption */
|
|
/* about instructions per second */
|
|
|
|
#define SIM_IDLE_CAL 10 /* ms to calibrate */
|
|
#define SIM_IDLE_MAX 10 /* max granularity idle */
|
|
#define SIM_IDLE_STMIN 10 /* min sec for stability */
|
|
#define SIM_IDLE_STDFLT 20 /* dft sec for stability */
|
|
#define SIM_IDLE_STMAX 600 /* max sec for stability */
|
|
|
|
#define SIM_THROT_WINIT 1000 /* cycles to skip */
|
|
#define SIM_THROT_WST 10000 /* initial wait */
|
|
#define SIM_THROT_WMUL 4 /* multiplier */
|
|
#define SIM_THROT_WMIN 100 /* min wait */
|
|
#define SIM_THROT_MSMIN 10 /* min for measurement */
|
|
#define SIM_THROT_NONE 0 /* throttle parameters */
|
|
#define SIM_THROT_MCYC 1 /* MegaCycles Per Sec */
|
|
#define SIM_THROT_KCYC 2 /* KiloCycles Per Sec */
|
|
#define SIM_THROT_PCT 3 /* Max Percent of host CPU */
|
|
#define SIM_THROT_SPC 4 /* Specific periodic Delay */
|
|
|
|
#define TIMER_DBG_IDLE 1 /* Debug Flag for Idle Debugging */
|
|
#define TIMER_DBG_QUEUE 2 /* Debug Flag for Asynch Queue Debugging */
|
|
|
|
t_bool sim_timer_init (void);
|
|
void sim_timespec_diff (struct timespec *diff, struct timespec *min, struct timespec *sub);
|
|
#if defined(SIM_ASYNCH_CLOCKS)
|
|
double sim_timenow_double (void);
|
|
#endif
|
|
int32 sim_rtcn_init (int32 time, int32 tmr);
|
|
int32 sim_rtcn_init_unit (UNIT *uptr, int32 time, int32 tmr);
|
|
void sim_rtcn_init_all (void);
|
|
int32 sim_rtcn_calb (int32 ticksper, int32 tmr);
|
|
int32 sim_rtc_init (int32 time);
|
|
int32 sim_rtc_calb (int32 ticksper);
|
|
t_stat sim_show_timers (FILE* st, DEVICE *dptr, UNIT* uptr, int32 val, char* desc);
|
|
t_stat sim_show_clock_queues (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, char *cptr);
|
|
t_bool sim_idle (uint32 tmr, t_bool sin_cyc);
|
|
t_stat sim_set_throt (int32 arg, char *cptr);
|
|
t_stat sim_show_throt (FILE *st, DEVICE *dnotused, UNIT *unotused, int32 flag, char *cptr);
|
|
t_stat sim_set_idle (UNIT *uptr, int32 val, char *cptr, void *desc);
|
|
t_stat sim_clr_idle (UNIT *uptr, int32 val, char *cptr, void *desc);
|
|
t_stat sim_show_idle (FILE *st, UNIT *uptr, int32 val, void *desc);
|
|
void sim_throt_sched (void);
|
|
void sim_throt_cancel (void);
|
|
uint32 sim_os_msec (void);
|
|
void sim_os_sleep (unsigned int sec);
|
|
uint32 sim_os_ms_sleep (unsigned int msec);
|
|
uint32 sim_os_ms_sleep_init (void);
|
|
void sim_start_timer_services (void);
|
|
void sim_stop_timer_services (void);
|
|
t_stat sim_timer_change_asynch (void);
|
|
t_stat sim_timer_activate_after (UNIT *uptr, int32 usec_delay);
|
|
t_stat sim_register_clock_unit (UNIT *uptr);
|
|
t_stat sim_clock_coschedule (UNIT *uptr, int32 interval);
|
|
t_stat sim_clock_coschedule_tmr (UNIT *uptr, int32 tmr, int32 interval);
|
|
double sim_timer_inst_per_sec (void);
|
|
uint32 sim_timer_idle_capable (uint32 *hoat_tick_ms);
|
|
|
|
extern t_bool sim_idle_enab; /* idle enabled flag */
|
|
extern volatile t_bool sim_idle_wait; /* idle waiting flag */
|
|
extern t_bool sim_asynch_timer;
|
|
extern DEVICE sim_timer_dev;
|
|
|
|
#endif
|