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.

NOVA/nova_cpu.c

@@ -1,6 +1,6 @@
 /* nova_cpu.c: NOVA CPU simulator
 
-   Copyright (c) 1993-2006, Robert M. Supnik
+   Copyright (c) 1993-2007, 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          Nova central processor
 
+   28-Apr-07    RMS     Removed clock initialization
    06-Feb-06    RMS     Fixed bug in DIVS (found by Mark Hittinger)
    22-Sep-05    RMS     Fixed declarations (from Sterling Garwood)
    25-Aug-05    RMS     Fixed DIVS case 2^31 / - 1
@@ -332,7 +333,6 @@ extern int32 sim_interval;
 int32 PC, IR, i;
 t_stat reason;
 void mask_out (int32 mask);
-extern int32 clk_sel, clk_time[4];
 
 /* Restore register state */
 
@@ -341,7 +341,6 @@ PC = saved_PC & AMASK;                                  /* load local PC */
 C = C & CBIT;
 mask_out (pimask);                                      /* reset int system */
 reason = 0;
-sim_rtc_init (clk_time[clk_sel]);                       /* init calibration */
 
 /* Main instruction fetch/decode loop */
 

NOVA/nova_lp.c

@@ -1,6 +1,6 @@
 /* nova_lp.c: NOVA line printer simulator
 
-   Copyright (c) 1993-2005, Robert M. Supnik
+   Copyright (c) 1993-2007, 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 @@
 
    lpt          line printer
 
+   19-Jan-07    RMS     Added UNIT_TEXT
    25-Apr-03    RMS     Revised for extended file support
    30-May-02    RMS     Widened POS to 32b
 */
@@ -49,7 +50,7 @@ t_stat lpt_reset (DEVICE *dptr);
 DIB lpt_dib = { DEV_LPT, INT_LPT, PI_LPT, &lpt };
 
 UNIT lpt_unit = {
-    UDATA (&lpt_svc, UNIT_SEQ+UNIT_ATTABLE, 0), SERIAL_OUT_WAIT
+    UDATA (&lpt_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0), SERIAL_OUT_WAIT
     };
 
 REG lpt_reg[] = {
@@ -110,12 +111,13 @@ dev_done = dev_done | INT_LPT;                          /* set done */
 int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
 if ((lpt_unit.flags & UNIT_ATT) == 0)                   /* attached? */
     return IORETURN (lpt_stopioe, SCPE_UNATT);
-if (putc (lpt_unit.buf, lpt_unit.fileref) == EOF) {
+fputc (uptr->buf, uptr->fileref);
+uptr->pos = ftell (uptr->fileref);
+if (ferror (uptr->fileref)) {
     perror ("LPT I/O error");
-    clearerr (lpt_unit.fileref);
+    clearerr (uptr->fileref);
     return SCPE_IOERR;
     }
-lpt_unit.pos = lpt_unit.pos + 1;
 return SCPE_OK;
 }