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TIMER: Add minimal tick based calibration APIs.

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This commit is contained in:
Mark Pizzolato 2019-06-08 13:55:06 -07:00
parent 56ab8260f2
commit da3f851d70
3 changed files with 21 additions and 4 deletions
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doc/simh.doc
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23
sim_timer.c
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@ -840,6 +840,11 @@ return sim_rtcn_init_unit (NULL, time, tmr);
int32 sim_rtcn_init_unit (UNIT *uptr, int32 time, int32 tmr)
{
return sim_rtcn_init_unit_ticks (uptr, time, tmr, 0);
}
int32 sim_rtcn_init_unit_ticks (UNIT *uptr, int32 time, int32 tmr, int32 ticksper)
{
if (time == 0)
time = 1;
if (tmr == SIM_INTERNAL_CLK)
@ -851,7 +856,7 @@ else {
/*
* If we'd previously succeeded in calibrating a tick value, then use that
* delay as a better default to setup when we're re-initialized.
* Re-initializing happens on any boot or after any breakpoint/continue.
* Re-initializing happens on any boot.
*/
if (rtc_currd[tmr])
time = rtc_currd[tmr];
@ -890,6 +895,11 @@ _rtcn_configure_calibrated_clock (tmr);
return time;
}
int32 sim_rtcn_calb_tick (int32 tmr)
{
return sim_rtcn_calb (rtc_hz[tmr], tmr);
}
int32 sim_rtcn_calb (int32 ticksper, int32 tmr)
{
uint32 new_rtime, delta_rtime, last_idle_pct;
@ -1181,11 +1191,11 @@ for (tmr=clocks=0; tmr<=SIM_NTIMERS; ++tmr) {
if (sim_idle_calib_pct && (sim_idle_calib_pct != 100))
fprintf (st, " Calib Skip when Idle >: %u%%\n", sim_idle_calib_pct);
if (rtc_clock_calib_skip_idle[tmr])
fprintf (st, " Calibs Skip While Idle: %u\n", rtc_clock_calib_skip_idle[tmr]);
fprintf (st, " Calibs Skip While Idle: %s\n", sim_fmt_numeric ((double)rtc_clock_calib_skip_idle[tmr]));
if (rtc_clock_calib_backwards[tmr])
fprintf (st, " Calibs Skip Backwards: %u\n", rtc_clock_calib_backwards[tmr]);
fprintf (st, " Calibs Skip Backwards: %s\n", sim_fmt_numeric ((double)rtc_clock_calib_backwards[tmr]));
if (rtc_clock_calib_gap2big[tmr])
fprintf (st, " Calibs Skip Gap Too Big: %u\n", rtc_clock_calib_gap2big[tmr]);
fprintf (st, " Calibs Skip Gap Too Big: %s\n", sim_fmt_numeric ((double)rtc_clock_calib_gap2big[tmr]));
}
if (rtc_gtime[tmr])
fprintf (st, " Instruction Time: %.0f\n", rtc_gtime[tmr]);
@ -3290,4 +3300,9 @@ for (tmr=0; tmr<=SIM_NTIMERS; tmr++) {
}
reset_all_p (0);
sim_run_boot_prep (RU_GO);
for (tmr=0; tmr<=SIM_NTIMERS; tmr++) {
if (rtc_calib_initializations[tmr])
rtc_calib_initializations[tmr] = 1;
}
sim_inst_per_sec_last = sim_precalibrate_ips;
}

2
sim_timer.h
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@ -108,10 +108,12 @@ void sim_timespec_diff (struct timespec *diff, struct timespec *min, struct time
double sim_timenow_double (void);
int32 sim_rtcn_init (int32 time, int32 tmr);
int32 sim_rtcn_init_unit (UNIT *uptr, int32 time, int32 tmr);
int32 sim_rtcn_init_unit_ticks (UNIT *uptr, int32 time, int32 tmr, int32 ticksper);
void sim_rtcn_get_time (struct timespec *now, int tmr);
t_stat sim_rtcn_tick_ack (uint32 time, int32 tmr);
void sim_rtcn_init_all (void);
int32 sim_rtcn_calb (int32 ticksper, int32 tmr);
int32 sim_rtcn_calb_tick (int32 tmr);
int32 sim_rtc_init (int32 time);
int32 sim_rtc_calb (int32 ticksper);
t_stat sim_set_timers (int32 arg, CONST char *cptr);