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.

PDP8/pdp8_ttx.c

@@ -283,7 +283,7 @@ switch (pulse) {                                        /* case IR<9:11> */
     case 1:                                             /* TSF */
         return (dev_done & itto)? IOT_SKP + AC: AC;
 
-    case 2:                                                     /* TCF */
+    case 2:                                             /* TCF */
         dev_done = dev_done & ~itto;                    /* clear flag */
         int_req = int_req & ~itto;                      /* clear intr */
         break;
@@ -295,7 +295,7 @@ switch (pulse) {                                        /* case IR<9:11> */
         dev_done = dev_done & ~itto;                    /* clear flag */
         int_req = int_req & ~itto;                      /* clear int req */
     case 4:                                             /* TPC */
-        sim_activate (&ttox_unit[ln], ttox_unit[ln].wait);      /* activate */
+        sim_activate (&ttox_unit[ln], ttox_unit[ln].wait); /* activate */
         ttox_buf[ln] = AC & 0377;                       /* load buffer */
         break;