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.

VAX/vax_sysdev.c

@@ -276,7 +276,6 @@ extern void txcs_wr (int32 dat);
 extern void txdb_wr (int32 dat);
 extern void ioreset_wr (int32 dat);
 extern uint32 sim_os_msec();
-extern int32 cpu_psl_ipl (int32 newpsl);
 
 /* ROM data structures
 
@@ -1501,7 +1500,7 @@ else STK[temp] = SP;                                    /* save stack */
 if (mapen) conpsl = conpsl | CON_MAPON;                 /* mapping on? */
 mapen = 0;                                              /* turn off map */
 SP = IS;                                                /* set SP from IS */
-PSL = cpu_psl_ipl (PSL_IS | PSL_IPL1F);                 /* PSL = 41F0000 */
+PSL = PSL_IS | PSL_IPL1F;                               /* PSL = 41F0000 */
 JUMP (ROMBASE);                                         /* PC = 20040000 */
 return 0;                                               /* new cc = 0 */
 }
@@ -1515,7 +1514,7 @@ extern FILE *sim_log;
 t_stat r;
 
 PC = ROMBASE;
-PSL = cpu_psl_ipl (PSL_IS | PSL_IPL1F);
+PSL = PSL_IS | PSL_IPL1F;
 conpc = 0;
 conpsl = PSL_IS | PSL_IPL1F | CON_PWRUP;
 if (rom == NULL) return SCPE_IERR;