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PDP11: Provide 10ms accuracy for the KDJ11-E TOY clock

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This commit is contained in:
Mark Pizzolato 2020-09-15 05:37:12 -07:00
parent c65eb24d9a
commit 20f9a2c985
1 changed files with 8 additions and 4 deletions
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12
PDP11/pdp11_cpumod.c
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@ -1023,18 +1023,22 @@ return SCPE_NXM;
int32 toy_read (void) int32 toy_read (void)
{ {
time_t curr;
struct tm *ctm;
int32 bit; int32 bit;
if (toy_state == 0) { if (toy_state == 0) {
curr = time (NULL); /* get curr time */ struct timespec now;
time_t curr;
struct tm *ctm;
sim_rtcn_get_time (&now, 0);
curr = (time_t)now.tv_sec;
if (curr == (time_t) -1) /* error? */ if (curr == (time_t) -1) /* error? */
return 0; return 0;
ctm = localtime (&curr); /* decompose */ ctm = localtime (&curr); /* decompose */
if (ctm == NULL) /* error? */ if (ctm == NULL) /* error? */
return 0; return 0;
toy_data[TOY_HSEC] = 0x50; toy_data[TOY_HSEC] = toy_set ((now.tv_nsec + 5000000) / 10000000);
toy_data[TOY_SEC] = toy_set (ctm->tm_sec); toy_data[TOY_SEC] = toy_set (ctm->tm_sec);
toy_data[TOY_MIN] = toy_set (ctm->tm_min); toy_data[TOY_MIN] = toy_set (ctm->tm_min);
toy_data[TOY_HR] = toy_set (ctm->tm_hour); toy_data[TOY_HR] = toy_set (ctm->tm_hour);