Notes For V3.0-0

Because some key files have changed, V3.0 should be unzipped to a
clean directory.

1. New Features in 3.0-0

1.1 SCP and Libraries

- Added ASSIGN/DEASSIGN (logical name) commands.
- Changed RESTORE to unconditionally detach files.
- Added E11 and TPC format support to magtape library.
- Fixed bug in SHOW CONNECTIONS.
- Added USE_ADDR64 support

1.2 All magtapes

- Magtapes support SIMH format, E11 format, and TPC format (read only).
- SET <tape_unit> FORMAT=format sets the specified tape unit's format.
- SHOW <tape_unit> FORMAT displays the specified tape unit's format.
- Tape format can also be set as part of the ATTACH command, using
  the -F switch.

1.3 VAX

- VAX can be compiled without USE_INT64.
- If compiled with USE_INT64 and USE_ADDR64, RQ and TQ controllers support
  files > 2GB.
- VAX ROM has speed control (SET ROM DELAY/NODELAY).

2. Bugs Fixed in 3.01-0

2.1 VAX

- Fixed CVTfi bug: integer overflow not set if exponent out of range
- Fixed EMODx bugs:
  o First and second operands reversed
  o Separated fraction received wrong exponent
  o Overflow calculation on separated integer incorrect
  o Fraction not set to zero if exponent out of range
- Fixed interval timer and ROM access to pass power-up self-test even on very
  fast host processors (fixes from Mark Pizzolato).

2.2 1401

- Fixed mnemonic, instruction lengths, and reverse scan length check bug for MCS.
- Fixed MCE bug, BS off by 1 if zero suppress.
- Fixed chaining bug, D lost if return to SCP.
- Fixed H branch, branch occurs after continue.
- Added check for invalid 8 character MCW, LCA.
- Fixed magtape load-mode end of record response.

2.3 Nova

- Fixed DSK variable size interaction with restore.

2.4 PDP-1

- Fixed DT variable size interaction with restore.

2.5 PDP-11

- Fixed DT variable size interaction with restore.
- Fixed bug in MMR1 update (found by Tim Stark).
- Added XQ features and fixed bugs:
  o Corrected XQ interrupts on IE state transition (code by Tom Evans).
  o Added XQ interrupt clear on soft reset.
  o Removed XQ interrupt when setting XL or RL (multiple people).
  o Added SET/SHOW XQ STATS.
  o Added SHOW XQ FILTERS.
  o Added ability to split received packet into multiple buffers.
  o Added explicit runt and giant packet processing.

2.6 PDP-18B

- Fixed DT, RF variable size interaction with restore.
- Fixed MT bug in MTTR.

2.7 PDP-8

- Fixed DT, DF, RF, RX variable size interaction with restore.
- Fixed MT bug in SKTR.

2.8 HP2100

- Fixed bug in DP (13210A controller only), DQ read status.
- Fixed bug in DP, DQ seek complete.

2.9 GRI

- Fixed bug in SC queue pointer management.

3. New Features in 3.0 vs prior releases

N/A

4. Bugs Fixed in 3.0 vs prior releases

N/A

5. General Notes

WARNING: The RESTORE command has changed.  RESTORE will now
detach an attached file on a unit, if that unit did not have
an attached file in the saved configuration.  This is required
to assure that the unit flags and the file state are consistent.

WARNING: The compilation scheme for the PDP-10, PDP-11, and VAX
has changed.  Use one of the supplied build files, or read the
documentation carefully, before compiling any of these simulators.

ALTAIR/altair_cpu.c

@@ -1,6 +1,6 @@
 /* altair_cpu.c: MITS Altair Intel 8080 CPU simulator
 
-   Copyright (c) 1997, Charles E. Owen
+   Copyright (c) 1997-2003, Charles E. Owen
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -58,7 +58,7 @@
 
 	HALT instruction
 	I/O error in I/O simulator
-    Invalid OP code (If ITRAP is set on CPU)
+	Invalid OP code (if ITRAP is set on CPU)
 
    2. Interrupts.
       There are 8 possible levels of interrupt, and in effect they
@@ -82,14 +82,14 @@
 #include "altair_defs.h"
 
 #define UNIT_V_OPSTOP	(UNIT_V_UF)			/* Stop on Invalid OP? */
-#define UNIT_OPSTOP		(1 << UNIT_V_OPSTOP)
-#define UNIT_V_CHIP	 	(UNIT_V_UF+1)       /* 8080 or Z80 */
-#define UNIT_CHIP		(1 << UNIT_V_CHIP)
-#define UNIT_V_MSIZE	(UNIT_V_UF+2)		/* Memory Size */
-#define UNIT_MSIZE		(1 << UNIT_V_MSIZE)
+#define UNIT_OPSTOP	(1 << UNIT_V_OPSTOP)
+#define UNIT_V_CHIP	(UNIT_V_UF+1)			/* 8080 or Z80 */
+#define UNIT_CHIP	(1 << UNIT_V_CHIP)
+#define UNIT_V_MSIZE	(UNIT_V_UF+2)			/* Memory Size */
+#define UNIT_MSIZE	(1 << UNIT_V_MSIZE)
 
-unsigned char M[MAXMEMSIZE];	/* memory */
-int32 A = 0;					    /* accumulator */
+unsigned char M[MAXMEMSIZE];				/* memory */
+int32 A = 0;						/* accumulator */
 int32 BC = 0;						/* BC register pair */
 int32 DE = 0;						/* DE register pair */
 int32 HL = 0;						/* HL register pair */
@@ -1168,7 +1168,7 @@ t_stat cpu_dep (t_value val, t_addr addr, UNIT *uptr, int32 sw)
 t_stat cpu_set_size (UNIT *uptr, int32 val, char *cptr, void *desc)
 {
 int32 mc = 0;
-t_addr i;
+uint32 i;
 
 if ((val <= 0) || (val > MAXMEMSIZE) || ((val & 07777) != 0))
 	return SCPE_ARG;

ALTAIR/altair_defs.h

@@ -1,6 +1,6 @@
 /* altair_defs.h: MITS Altair simulator definitions
 
-   Copyright (c) 1997, Charles E. Owen
+   Copyright (c) 1997-2003, Charles E. Owen
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -31,12 +31,12 @@
 #define MAXMEMSIZE	65536				/* max memory size */
 #define MEMSIZE		(cpu_unit.capac)		/* actual memory size */
 #define ADDRMASK	(MAXMEMSIZE - 1)		/* address mask */
-#define MEM_ADDR_OK(x)	(x < MEMSIZE)
+#define MEM_ADDR_OK(x)	(((uint32) (x)) < MEMSIZE)
 
 /* Simulator stop codes */
 
 #define STOP_RSRV	1				/* must be 1 */
-#define STOP_HALT   2               /* HALT */
+#define STOP_HALT	2				/* HALT */
 #define STOP_IBKPT	3				/* breakpoint */
-#define STOP_OPCODE 4
+#define STOP_OPCODE	4
 

ALTAIR/altair_dsk.c

@@ -1,6 +1,6 @@
 /* altair_dsk.c: MITS Altair 88-DISK Simulator
 
-   Copyright (c) 1997, Charles E. Owen
+   Copyright (c) 1997-2003, Charles E. Owen
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -124,8 +124,6 @@ t_stat dsk_svc (UNIT *uptr);
 t_stat dsk_reset (DEVICE *dptr);
 void writebuf();
 
-extern int32 sim_activate (UNIT *uptr, int32 interval);
-extern int32 sim_cancel (UNIT *uptr);
 extern int32 PCX;
 
 /* Global data on status */

ALTAIR/altair_sio.c

@@ -1,6 +1,6 @@
 /* altair_sio: MITS Altair serial I/O card
 
-   Copyright (c) 1997, Charles E. Owen
+   Copyright (c) 1997-2003, Charles E. Owen
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -63,11 +63,6 @@ t_stat ptp_reset (DEVICE *dptr);
 
 int32 ptr_stopioe = 0, ptp_stopioe = 0;			/* stop on error */
 
-extern t_stat sim_activate (UNIT *uptr, int32 interval);
-extern t_stat sim_cancel (UNIT *uptr);
-extern t_stat sim_poll_kbd (void);
-extern t_stat sim_putchar (int32 out);
-
 /* 2SIO Standard I/O Data Structures */
 
 UNIT sio_unit = { UDATA (&sio_svc, 0, 0),
@@ -95,7 +90,7 @@ UNIT ptr_unit = { UDATA (&ptr_svc, UNIT_SEQ + UNIT_ATTABLE, 0),
 REG ptr_reg[] = {
 	{ ORDATA (DATA, ptr_unit.buf, 8) },
 	{ ORDATA (STAT, ptr_unit.u3, 8) },
-	{ ORDATA (POS, ptr_unit.pos, 32) },
+	{ ORDATA (POS, ptr_unit.pos, T_ADDR_W) },
 	{ NULL }  };
 
 DEVICE ptr_dev = {
@@ -110,7 +105,7 @@ UNIT ptp_unit = { UDATA (&ptp_svc, UNIT_SEQ + UNIT_ATTABLE, 0),
 REG ptp_reg[] = {
 	{ ORDATA (DATA, ptp_unit.buf, 8) },
 	{ ORDATA (STAT, ptp_unit.u3, 8) },
-	{ ORDATA (POS, ptp_unit.pos, 32) },
+	{ ORDATA (POS, ptp_unit.pos, T_ADDR_W) },
 	{ NULL }  };
 
 DEVICE ptp_dev = {

ALTAIR/altair_sys.c

@@ -1,6 +1,6 @@
 /* altair_sys.c: MITS Altair system interface
 
-   Copyright (c) 1997, Charles E. Owen
+   Copyright (c) 1997-2003, Charles E. Owen
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
@@ -37,9 +37,6 @@ extern DEVICE ptp_dev;
 extern DEVICE lpt_dev;
 extern unsigned char M[];
 extern int32 saved_PC;
-extern char *get_glyph (char *cptr, char *gbuf, char term);
-extern unsigned int32 get_uint (char *cptr, int32 radix, unsigned int32 max,
-	int32 *status);
 
 /* SCP data structures