Notes For V2.9-11

1. New Features

1.1 GRI-909

- This is a new simulator for the GRI-909.
- It has been hand-tested; so far, no software has been discovered.

1.2 VAX

- SET CPU CONHALT will cause a HALT instruction to return to the
  boot ROM console rather than to SIMH.  SET CPU SIMHALT restores
  the default behavior.
- BRB/W self at IPL 1F stops the simulator.  This is the default
  behavior of VMS at exit.

1.3 PDP-18b

- ATTACH -A PTR/PTP attaches the reader and punch in ASCII mode.
  In ASCII mode, the reader automatically sets the high order bit
  of incoming alphabetic data, and the punch clears the high order
  bit of outgoing data.

1.4 SCP

- DO -V echoes commands from the file as they are executed.
- Under Windows, execution priority is set BELOW_NORMAL when the
  simulator is running.

2. Release Notes

2.1 Bugs Fixed

- PDP-11 CPU: fixed updating of MMR0 on a memory management error.
- VAX FPA: changed function names to avoid conflict with C math library.
- 1401 MT: read end of record generates group mark without word mark.
- 1401 DP: fixed address generation and checking.
- SCP: an EXIT within a DO command will cause the simulator to exit.

3. In Progress

- Interdata 16b/32b: coded, not tested.
- SDS 940: coded, not tested.
- IBM 1620: coded, not tested.

If you would like to help with the debugging of the untested simulators,
they can be made available by special request.

NOVA/nova_dkp.c

@@ -1,6 +1,6 @@
 /* nova_dkp.c: NOVA moving head disk simulator
 
-   Copyright (c) 1993-2001, Robert M. Supnik
+   Copyright (c) 1993-2002, 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 @@
 
    dkp		moving head disk
 
+   06-Jan-02	RMS	Revised enable/disable support
    30-Nov-01	RMS	Added read only unit, extended SET/SHOW support
    24-Nov-01	RMS	Changed FLG, CAPAC to arrays
    26-Apr-01	RMS	Added device enable/disable support
@@ -286,11 +287,6 @@ t_stat dkp_boot (int32 unitno);
 t_stat dkp_attach (UNIT *uptr, char *cptr);
 t_stat dkp_go (void);
 t_stat dkp_set_size (UNIT *uptr, int32 val, char *cptr, void *desc);
-#if defined (ECLIPSE)
-extern int32 MapAddr (int32 map, int32 addr);
-#else
-#define MapAddr(m,a)	(a)
-#endif
 
 /* DKP data structures
 
@@ -329,7 +325,7 @@ REG dkp_reg[] = {
 	{ NULL }  };
 
 MTAB dkp_mod[] = {
-	{ UNIT_WLK, 0, "write enabled", "ENABLED", NULL },
+	{ UNIT_WLK, 0, "write enabled", "WRITEENABLED", NULL },
 	{ UNIT_WLK, UNIT_WLK, "write locked", "LOCKED", NULL },
 	{ (UNIT_DTYPE+UNIT_ATT), (TYPE_FLP << UNIT_V_DTYPE) + UNIT_ATT,
 		"6030 (floppy)", NULL, NULL },
@@ -423,6 +419,8 @@ MTAB dkp_mod[] = {
 		NULL, "4231", &dkp_set_size },
  	{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_4231 << UNIT_V_DTYPE),
 		NULL, "3330", &dkp_set_size },
+	{ MTAB_XTD|MTAB_VDV, INT_DKP, NULL, "ENABLED", &set_enb },
+	{ MTAB_XTD|MTAB_VDV, INT_DKP, NULL, "DISABLED", &set_dsb },
 	{ 0 }  };
 
 DEVICE dkp_dev = {