Notes For V3.7-0

1. New Features

1.1 3.7-0

1.1.1 SCP

- Added SET THROTTLE and SET NOTHROTTLE commands to regulate simulator
  execution rate and host resource utilization.
- Added idle support (based on work by Mark Pizzolato).
- Added -e to control error processing in nested DO commands (from
  Dave Bryan).

1.1.2 HP2100

- Added Double Integer instructions, 1000-F CPU, and Floating Point
  Processor (from Dave Bryan).
- Added 2114 and 2115 CPUs, 12607B and 12578A DMA controllers, and
  21xx binary loader protection (from Dave Bryan).

1.1.3 Interdata

- Added SET IDLE and SET NOIDLE commands to idle the simulator in wait
  state.

1.1.4 PDP-11

- Added SET IDLE and SET NOIDLE commands to idle the simulator in wait
  state (WAIT instruction executed).
- Added TA11/TU60 cassette support.

1.1.5 PDP-8

- Added SET IDLE and SET NOIDLE commands to idle the simulator in wait
  state (keyboard poll loop or jump-to-self).
- Added TA8E/TU60 cassette support.

1.1.6 PDP-1

- Added support for 16-channel sequence break system.
- Added support for PDP-1D extended features and timesharing clock.
- Added support for Type 630 data communications subsystem.

1.1.6 PDP-4/7/9/15

- Added SET IDLE and SET NOIDLE commands to idle the simulator in wait
  state (keyboard poll loop or jump-to-self).

1.1.7 VAX, VAX780

- Added SET IDLE and SET NOIDLE commands to idle the simulator in wait
  state (more than 200 cycles at IPL's 0, 1, or 3 in kernel mode).

1.1.8 PDP-10

- Added SET IDLE and SET NOIDLE commands to idle the simulator in wait
  state (operating system dependent).
- Added CD20 (CD11) support.

2. Bugs Fixed

Please see the revision history on http://simh.trailing-edge.com or
in the source module sim_rev.h.

PDP11/pdp11_xu.c

@@ -1,7 +1,7 @@
 /* pdp11_xu.c: DEUNA/DELUA ethernet controller simulator
   ------------------------------------------------------------------------------
 
-   Copyright (c) 2003-2005, David T. Hittner
+   Copyright (c) 2003-2006, David T. Hittner
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -57,6 +57,7 @@
 
   Modification history:
 
+  29-Oct-06  RMS  Synced poll and clock
   08-Dec-05  DTH  Implemented ancilliary functions 022/023/024/025
   18-Nov-05  DTH  Corrected time between system ID packets
   07-Sep-05  DTH  Corrected runt packet processing (found by Tim Chapman),
@@ -83,7 +84,7 @@
 
 #include "pdp11_xu.h"
 
-extern int32 tmr_poll, clk_tps, cpu_astop;
+extern int32 tmxr_poll, tmr_poll, clk_tps, cpu_astop;
 extern FILE *sim_log;
 
 t_stat xu_rd(int32* data, int32 PA, int32 access);
@@ -449,8 +450,8 @@ t_stat xu_svc(UNIT* uptr)
   int queue_size;
   t_stat status;
   CTLR* xu = xu_unit2ctlr(uptr);
-  const int one_second = clk_tps * tmr_poll;                  /* recalibrate timer */
   const ETH_MAC mop_multicast = {0xAB, 0x00, 0x00, 0x02, 0x00, 0x00};
+  const int one_second = clk_tps * tmr_poll;
 
   /* First pump any queued packets into the system */
   if ((xu->var->ReadQ.count > 0) && ((xu->var->pcsr1 & PCSR1_STATE) == STATE_RUNNING))
@@ -486,7 +487,7 @@ t_stat xu_svc(UNIT* uptr)
   switch (xu->var->pcsr1 & PCSR1_STATE) {
     case STATE_READY:
     case STATE_RUNNING:
-      sim_activate(&xu->unit[0], one_second/XU_SERVICE_INTERVAL);
+      sim_activate(&xu->unit[0], tmxr_poll);
       break;
   };
 
@@ -522,7 +523,6 @@ void xu_setclrint(CTLR* xu, int32 bits)
 t_stat xu_sw_reset (CTLR* xu)
 {
   t_stat status;
-  const int one_second = clk_tps * tmr_poll;                  /* recalibrate timer */
 
   sim_debug(DBG_TRC, xu->dev, "xu_sw_reset()\n");
 
@@ -564,10 +564,9 @@ t_stat xu_sw_reset (CTLR* xu)
                          &xu->var->mac, xu->var->setup.multicast,
                          xu->var->setup.promiscuous);
 
-  /* activate device if not disabled - cancel first, just in case */
+  /* activate device if not disabled */
   if ((xu->dev->flags & DEV_DIS) == 0) {
-    sim_cancel(&xu->unit[0]);
-    sim_activate(&xu->unit[0], one_second/XU_SERVICE_INTERVAL);
+    sim_activate_abs(&xu->unit[0], clk_cosched (tmxr_poll));
   }
 
   /* clear load_server address */
@@ -727,9 +726,9 @@ sim_debug(DBG_TRC, xu->dev, "FC_WAL: mtlen=%d\n", mtlen);
       xu->var->rrlen = xu->var->udb[5];
       xu->var->rxnext = 0;
       xu->var->txnext = 0;
-xu_dump_rxring(xu);
-xu_dump_txring(xu);
-/*cpu_astop=1;*/
+// xu_dump_rxring(xu);
+// xu_dump_txring(xu);
+
       break;
 
     case FC_RDCTR:      /* read counters */
@@ -1072,7 +1071,7 @@ void xu_process_receive(CTLR* xu)
 
   /* set or clear interrupt, depending on what happened */
   xu_setclrint(xu, 0);
-xu_dump_rxring(xu); /* debug receive ring */
+// xu_dump_rxring(xu); /* debug receive ring */
 
 }