simh-testsetgenerator/PDP1/pdp1_defs.h
Bob Supnik 4ffd3be790 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.
2011-04-15 08:34:08 -07:00

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/* pdp1_defs.h: 18b PDP simulator definitions
Copyright (c) 1993-2003, 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"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of Robert M Supnik shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
05-Dec-02 RMS Added IOT skip support (required by drum)
14-Apr-99 RMS Changed t_addr to unsigned
The PDP-1 was Digital's first computer. The system design evolved during
its life, and as a result, specifications are sketchy or contradictory.
This simulator is based on the 1962 maintenance manual.
This simulator implements the following options:
Automatic multiply/divide Type 10
Memory extension control Type 15
Line printer control Type 62
*/
#include "sim_defs.h"
/* Simulator stop codes */
#define STOP_RSRV 1 /* must be 1 */
#define STOP_HALT 2 /* HALT */
#define STOP_IBKPT 3 /* breakpoint */
#define STOP_XCT 4 /* nested XCT's */
#define STOP_IND 5 /* nested indirects */
#define STOP_WAIT 6 /* wait state */
/* Memory */
#define ASIZE 16 /* address bits */
#define MAXMEMSIZE (1u << ASIZE) /* max mem size */
#define AMASK (MAXMEMSIZE - 1) /* address mask */
#define MEMSIZE (cpu_unit.capac) /* actual memory size */
#define MEM_ADDR_OK(x) (((uint32) (x)) < MEMSIZE)
/* Architectural constants */
#define DMASK 0777777 /* data mask */
#define DAMASK 007777 /* direct addr */
#define EPCMASK (AMASK & ~DAMASK) /* extended addr */
#define IA 010000 /* indirect flag */
#define IO_WAIT 010000 /* I/O sync wait */
#define IO_CPLS 004000 /* completion pulse */
#define GEN_CPLS(x) (((x) ^ ((x) << 1)) & IO_WAIT) /* completion pulse? */
/* IOT subroutine return codes */
#define IOT_V_SKP 18 /* skip */
#define IOT_SKP (1 << IOT_V_SKP)
#define IOT_V_REASON (IOT_V_SKP + 1) /* reason */
#define IOT_REASON (1 << IOT_V_REASON)
#define IORETURN(f,v) ((f)? (v): SCPE_OK) /* stop on error */
/* I/O status flags */
#define IOS_V_LPN 17 /* light pen */
#define IOS_V_PTR 16 /* paper tape reader */
#define IOS_V_TTO 15 /* typewriter out */
#define IOS_V_TTI 14 /* typewriter in */
#define IOS_V_PTP 13 /* paper tape punch */
#define IOS_V_DRM 12 /* drum */
#define IOS_V_SQB 11 /* sequence break */
#define IOS_V_PNT 2 /* print done */
#define IOS_V_SPC 1 /* space done */
#define IOS_LPN (1 << IOS_V_LPN)
#define IOS_PTR (1 << IOS_V_PTR)
#define IOS_TTO (1 << IOS_V_TTO)
#define IOS_TTI (1 << IOS_V_TTI)
#define IOS_PTP (1 << IOS_V_PTP)
#define IOS_DRM (1 << IOS_V_DRM)
#define IOS_SQB (1 << IOS_V_SQB)
#define IOS_PNT (1 << IOS_V_PNT)
#define IOS_SPC (1 << IOS_V_SPC)
/* Sequence break flags */
#define SB_V_IP 0 /* in progress */
#define SB_V_RQ 1 /* request */
#define SB_V_ON 2 /* enabled */
#define SB_IP (1 << SB_V_IP)
#define SB_RQ (1 << SB_V_RQ)
#define SB_ON (1 << SB_V_ON)