folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

TIMER: Fix clock calibration after a host OS sleep/hibernate

Browse source
This commit is contained in:
Mark Pizzolato 2015-11-23 12:55:42 -08:00
parent 668761a460
commit b3b038900c
1 changed files with 10 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
sim_timer.c
View file

@ -636,10 +636,17 @@ delta_rtime = new_rtime - rtc_rtime[tmr]; /* elapsed wtime */
rtc_rtime[tmr] = new_rtime; /* adv wall time */ rtc_rtime[tmr] = new_rtime; /* adv wall time */
rtc_vtime[tmr] = rtc_vtime[tmr] + 1000; /* adv sim time */ rtc_vtime[tmr] = rtc_vtime[tmr] + 1000; /* adv sim time */
if (delta_rtime > 30000) { /* gap too big? */ if (delta_rtime > 30000) { /* gap too big? */
rtc_currd[tmr] = rtc_initd[tmr]; /* This simulator process has somehow been suspended for a significant */
/* amount of time. This will certainly happen if the host system has */
/* slept or hibernated. It also might happen when a simulator */
/* developer stops the simulator at a breakpoint (a process, not simh */
/* breakpoint). To accomodate this, we set the calibration state to */
/* ignore what happened and proceed from here. */
rtc_vtime[tmr] = rtc_rtime[tmr]; /* sync virtual and real time */
rtc_nxintv[tmr] = 1000; /* reset next interval */
rtc_gtime[tmr] = sim_gtime(); /* save instruction time */ rtc_gtime[tmr] = sim_gtime(); /* save instruction time */
sim_debug (DBG_CAL, &sim_timer_dev, "gap too big: delta = %d - result: %d\n", delta_rtime, rtc_initd[tmr]); sim_debug (DBG_CAL, &sim_timer_dev, "gap too big: delta = %d - result: %d\n", delta_rtime, rtc_currd[tmr]);
return rtc_initd[tmr]; /* can't calibr */ return rtc_currd[tmr]; /* can't calibr */
} }
new_gtime = sim_gtime(); new_gtime = sim_gtime();
if (sim_asynch_enabled && sim_asynch_timer) { if (sim_asynch_enabled && sim_asynch_timer) {