Notes For V3.7

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.

GRI/gri_cpu.c

@@ -1,6 +1,6 @@
 /* gri_cpu.c: GRI-909 CPU simulator
 
-   Copyright (c) 2001-2005, Robert M. Supnik
+   Copyright (c) 2001-2007, Robert M. Supnik
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -25,6 +25,7 @@
 
    cpu          GRI-909 CPU
 
+   28-Apr-07    RMS     Removed clock initialization
    22-Sep-05    RMS     Fixed declarations (from Sterling Garwood)
    18-Jul-04    RMS     Fixed missing ao_update calls in AX, AY write
    17-Jul-04    RMS     Revised MSR, EAO based on additional documentation
@@ -380,14 +381,12 @@ t_stat sim_instr (void)
 {
 uint32 src, dst, op, t, jmp;
 t_stat reason;
-extern UNIT rtc_unit;
 
 /* Restore register state */
 
 SC = SC & AMASK;                                        /* load local PC */
 reason = 0;
 ao_update ();                                           /* update AO */
-sim_rtc_init (rtc_unit.wait);                           /* init calibration */
 
 /* Main instruction fetch/decode loop */