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TX-0: Stop ptp_svc from setting the ios bit

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sim_instr never clears it and simulation loops.

The CPU-to-device routines and device service routines need a redesign.
In the meantime, this quick patch makes tape punching possible.
This commit is contained in:
Derek Peschel
2023-10-13 13:07:28 -10:00
committed by Mark Pizzolato
parent bb9fa6f258
commit cce97b7d6c
1 changed files with 0 additions and 1 deletions
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TX-0/tx0_stddev.c
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@@ -524,7 +524,6 @@ int32 ptp (int32 inst, int32 dev, int32 dat)
t_stat ptp_svc (UNIT *uptr) t_stat ptp_svc (UNIT *uptr)
{ {
ios = 1; /* restart */
iosta = iosta | IOS_PTP; /* set flag */ iosta = iosta | IOS_PTP; /* set flag */
if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */ if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */
return SCPE_UNATT; return SCPE_UNATT;