The makefile now works for Linux and most Unix's. However, for Solaris
and MacOS, you must first export the OSTYPE environment variable:
> export OSTYPE
> make
Otherwise, you will get build errors.
1. New Features
1.1 3.9-0
1.1.1 SCP and libraries
- added *nix READLINE support (Mark Pizzolato)
- added "SHOW SHOW" and "SHOW <dev> SHOW" commands (Mark Pizzolato)
- added support for BREAK key on Windows (Mark Pizzolato)
1.1.2 PDP-8
- floating point processor is now enabled
2. Bugs Fixed
Please see the revision history on http://simh.trailing-edge.com or
in the source module sim_rev.h.
3. Status Report
This is the last release of SimH for which I will be sole editor. After this
release, the source is moving to a public repository:
under the general editorship of Dave Hittner and Mark Pizzolato. The status
of the individual simulators is as follows:
3.1 PDP-1
Stable and working; runs available software.
3.2 PDP-4/7/9/15
Stable and working; runs available software.
3.3 PDP-8
Stable and working; runs available software.
3.4 PDP-10 [KS-10 only]
Stable and working; runs available software.
3.5 PDP-11
Stable and working; runs available system software. The emulation of individual
models has numerous errors of detail, which prevents many diagnostics from
running correctly.
3.6 VAX-11/780
Stable and working; runs available software.
3.7 MicroVAX 3900 (VAX)
Stable and working; runs available software. Thanks to the kind generosity of
Camiel Vanderhoeven, this simulator has been verified with AXE, the VAX
architectural exerciser.
3.8 Nova
Stable and working; runs available software.
3.9 Eclipse
Stable and working, but not really supported. There is no Eclipse-specific
software available under a hobbyist license.
3.10 Interdata 16b
Stable and working, but no software for it has been found, other than
diagnostics.
3.11 Interdata 32b
Stable and working; runs 32b UNIX and diagnostics.
3.12 IBM 1401
Stable and working; runs available software.
3.13 IBM 1620
Hand debug only. No software for it has been found or tested.
3.14 IBM 7094
Stable and working as a stock system; runs IBSYS. The CTSS extensions
have not been debugged.
3.15 IBM S/3
Stable and working, but not really supported. Runs available software.
3.16 IBM 1130
Stable and working; runs available software. Supported and edited by
Brian Knittel.
3.17 HP 2100/1000
Stable and working; runs available software. Supported and edited by
Dave Bryan.
3.18 Honeywell 316/516
Stable and working; runs available software.
3.19 GRI-909/99
Hand debug only. No software for it has been found or tested.
3.20 SDS-940
Hand debug only, and a few diagnostics.
3.21 LGP-30
Unfinished; hand debug only. Does not run available software, probably
due to my misunderstanding of the LGP-30 operational procedures.
3.22 Altair (original 8080 version)
Stable and working, but not really supported. Runs available software.
3.23 AltairZ80 (Z80 version)
Stable and working; runs available software. Supported and edited by
Peter Schorn.
3.24 SWTP 6800
Stable and working; runs available software. Supported and edited by
Bill Beech
3.25 Sigma 32b
Incomplete; more work is needed on the peripherals for accuracy.
3.26 Alpha
Incomplete; essentially just an EV-5 (21164) chip emulator.
4. Suggestions for Future Work
4.1 General Structure
- Multi-threading, to allow true concurrency between SCP and the simulator
- Graphics device support, particularly for the PDP-1 and PDP-11
4.2 Current Simulators
- PDP-1 graphics, to run Space War
- PDP-11 GT40 graphics, to run Lunar Lander
- PDP-15 MUMPS-15
- Interdata native OS debug, both 16b and 32b
- SDS 940 timesharing operating system debug
- IBM 7094 CTSS feature debug and operating system debug
- IBM 1620 debug and software
- GRI-909 software
- Sigma 32b completion and debug
- LGP-30 debug
4.3 Possible Future Simulators
- Data General MV8000 (if a hobbyist license can be obtained for AOS)
- Alpha simulator
- HP 3000 (16b) simulator with MPE
The makefile now works for Linux and most Unix's. However, for Solaris
and MacOS, you must first export the OSTYPE environment variable:
> export OSTYPE
> make
Otherwise, you will get build errors.
1. New Features
1.1 3.8-0
1.1.1 SCP and Libraries
- BREAK, NOBREAK, and SHOW BREAK with no argument will set, clear, and
show (respectively) a breakpoint at the current PC.
1.1.2 GRI
- Added support for the GRI-99 processor.
1.1.3 HP2100
- Added support for the BACI terminal interface.
- Added support for RTE OS/VMA/EMA, SIGNAL, VIS firmware extensions.
1.1.4 Nova
- Added support for 64KW memory (implemented in third-party CPU's).
1.1.5 PDP-11
- Added support for DC11, RC11, KE11A, KG11A.
- Added modem control support for DL11.
- Added ASCII character support for all 8b devices.
1.2 3.8-1
1.2.1 SCP and libraries
- Added capability to set line connection order for terminal multiplexers.
1.2.2 HP2100
- Added support for 12620A/12936A privileged interrupt fence.
- Added support for 12792C eight-channel asynchronous multiplexer.
1.3 3.8-2
1.3.1 1401
- Added "no rewind" option to magtape boot.
1.3.2 PDP-11
- Added RD32 support to RQ
- Added debug support to RL
1.3.3 PDP-8
- Added FPP support (many thanks to Rick Murphy for debugging the code)
2. Bugs Fixed
Please see the revision history on http://simh.trailing-edge.com or
in the source module sim_rev.h.
The makefile now works for Linux and most Unix's. Howevr, for Solaris
and MacOS, you must first export the OSTYPE environment variable:
> export OSTYPE
> make
Otherwise, you will get build errors.
1. New Features
1.1 3.8-0
1.1.1 SCP and Libraries
- BREAK, NOBREAK, and SHOW BREAK with no argument will set, clear, and
show (respectively) a breakpoint at the current PC.
1.1.2 GRI
- Added support for the GRI-99 processor.
1.1.3 HP2100
- Added support for the BACI terminal interface.
- Added support for RTE OS/VMA/EMA, SIGNAL, VIS firmware extensions.
1.1.4 Nova
- Added support for 64KW memory (implemented in third-party CPU's).
1.1.5 PDP-11
- Added support for DC11, RC11, KE11A, KG11A.
- Added modem control support for DL11.
- Added ASCII character support for all 8b devices.
1.2 3.8-1
1.2.1 SCP and libraries
- Added capability to set line connection order for terminal multiplexers.
1.2.2 HP2100
- Added support for 12620A/12936A privileged interrupt fence.
- Added support for 12792C eight-channel asynchronous multiplexer.
2. Bugs Fixed
Please see the revision history on http://simh.trailing-edge.com or
in the source module sim_rev.h.
The makefile now works for Linux and most Unix's. Howevr, for Solaris
and MacOS, you must first export the OSTYPE environment variable:
> export OSTYPE
> make
Otherwise, you will get build errors.
1. New Features
1.1 3.8-0
1.1.1 SCP and Libraries
- BREAK, NOBREAK, and SHOW BREAK with no argument will set, clear, and
show (respectively) a breakpoint at the current PC.
1.2 GRI
- Added support for the GRI-99 processor.
1.3 HP2100
- Added support for the BACI terminal interface.
- Added support for RTE OS/VMA/EMA, SIGNAL, VIS firmware extensions.
1.4 Nova
- Added support for 64KW memory (implemented in third-party CPU's).
1.5 PDP-11
- Added support for DC11, RC11, KE11A, KG11A.
- Added modem control support for DL11.
- Added ASCII character support for all 8b devices.
2. Bugs Fixed
Please see the revision history on http://simh.trailing-edge.com or
in the source module sim_rev.h.
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.
The source set has been extensively overhauled. For correct
viewing, set Visual C++ or Emacs to have tab stops every 4
characters.
1. New Features in 3.4-1
1.1 All Ethernet devices
- Added Windows user-defined adapter names (from Timothe Litt)
1.2 Interdata, SDS, HP, PDP-8, PDP-18b terminal multiplexors
- Added support for SET <unit>n DISCONNECT
1.3 VAX
- Added latent QDSS support
- Revised autoconfigure to handle QDSS
1.4 PDP-11
- Revised autoconfigure to handle more casees
2. Bugs Fixed in 3.4-1
2.1 SCP and libraries
- Trim trailing spaces on all input (for example, attach file names)
- Fixed sim_sock spurious SIGPIPE error in Unix/Linux
- Fixed sim_tape misallocation of TPC map array for 64b simulators
2.2 1401
- Fixed bug, CPU reset was clearing SSB through SSG
2.3 PDP-11
- Fixed bug in VH vector display routine
- Fixed XU runt packet processing (found by Tim Chapman)
2.4 Interdata
- Fixed bug in SHOW PAS CONN/STATS
- Fixed potential integer overflow exception in divide
2.5 SDS
- Fixed bug in SHOW MUX CONN/STATS
2.6 HP
- Fixed bug in SHOW MUX CONN/STATS
2.7 PDP-8
- Fixed bug in SHOW TTIX CONN/STATS
- Fixed bug in SET/SHOW TTOXn LOG
2.8 PDP-18b
- Fixed bug in SHOW TTIX CONN/STATS
- Fixed bug in SET/SHOW TTOXn LOG
2.9 Nova, Eclipse
- Fixed potential integer overflow exception in divide
The memory layout for the Interdata simulators has been changed.
Do not use Interdata SAVE files from prior revisions with V3.4.
1. New Features in 3.4
1.1 SCP and Libraries
- Revised interpretation of fprint_sym, fparse_sym returns
- Revised syntax for SET DEBUG
- DO command nesting allowed to ten levels
1.2 Interdata
- Revised memory model to be 16b instead of 8b
1.3 HP2100
- Added Fast FORTRAN Processor instructions
- Added SET OFFLINE/ONLINE and SET UNLOAD/LOAD commands to tapes and disks
2. Bugs Fixed in 3.4-0
2.1 Interdata
- Fixed bug in show history routine (from Mark Hittinger)
- Fixed bug in initial memory allocation
2.2 PDP-10
- Fixed TU bug, ERASE and WREOF should not clear done (reported by
Rich Alderson)
- Fixed TU error reporting
2.3 PDP-11
- Fixed TU error reporting
1. New Features in 3.3-2
1.1 SCP and Libraries
- Added ASSERT command (from Dave Bryan)
1.2 PDP-11, VAX
- Added RA60, RA71, RA81 disks
2. Bugs Fixed in 3.3-2
2.1 H316
- Fixed IORETURN macro
- PT: fixed bug in OCP '0001 (found by Philipp Hachtmann)
- MT: fixed error reporting from OCP (found by Philipp Hachtmann)
2.2 Interdata 32b
- Fixed branches to mask new PC (from Greg Johnson)
2.3 PDP-11
- Fixed bugs in RESET for 11/70 (reported by Tim Chapman)
- Fixed bug in SHOW MODEL (from Sergey Okhapkin)
- Made SYSID variable for 11/70 (from Tim Chapman)
- Fixed MBRK write case for 11/70 (from Tim Chapman)
- RY: fixed bug in boot code (reported by Graham Toal)
2.4 VAX
- Fixed initial state of cpu_extmem
2.5 HP2100 (from Dave Bryan)
- Fixed missing MPCK on JRS target
- Removed EXECUTE instruction (is NOP in actual microcode)
- Fixed missing negative overflow renorm in StoreFP
2.6 I1401
- Fixed bug in line printer write line (reported by Van Snyder)
