Asynchronous clocks are now built for all simulators which are built with
SIM_ASYNCH_IO defined. The default behavior has asynchronous clocks
disabled since this is still experimental, but it can be enabled with
SET TIMER ASYNC.
Catchup clock ticks are now available, but since they're experimental,
they aren't enabled by default. Catchup ticks are only available if the
simulators clock device calls sim_rtcn_tick_ack to acknowledge processing
of clock ticks. The VAX simulators have been modified to leverage this.
Catchup clock ticks can be enabled with SET TIMER CATCHUP
Additionally, an idle threshold is provided which can be used to
influence when clock calibration may be suppressed. The default is not
to suppress calibration activities.
The various timer behaviors are visible with the SHOW TIMER command.
The state of the operating timer facilities is visible with: SHOW CLOCK
Timer events which are queued are visible with the SHOW QUEUE command.
The new RUN/GO command syntax supports a stop criteria.
There are two forms of stop criteria:
1) A normal breakpoint (which exists only until it is encountered)
2) A user specified output string is emitted by the simulated system.
Command syntax is:
RUN|GO {START-PC-VALUE} {UNTIL breakpoint|"output-string"}
Users wanting to build simulators with locally build dependent packages or
packages provided by an unsupported package management system can
override where this procedure looks for include files and/or libraries.
Overrides can be specified by define exported environment variables or
GNU make command line arguments which specify INCLUDES and/or LIBRARIES.
Each of these, if specified, must be the complete list include directories
or library directories that should be used with each element separated by
colons. (i.e. INCLUDES=/usr/include/:/usr/local/include/:...)
Binaries built with unsupported library components will have a 'unsupported' tag
in the output of the SHOW VERSION command.
This should work on all byte addressable host systems using GCC/clang to build.
The QEMU slirp code has been pried out of QEMU and stubs have been created to solve where the current slirp is entangled with the QEMU code. Ths slirp/simh directory contains all the necessary include and glue files to make this useful. Everything in the slirp directory is unmodified QEMU code.
VAX 11/.750 Boot ROM code makes non-longword memory references to MassBus and Unibus register space. Minor changes were necessary to allow this behavior which was architecturally undefined behavior, but had real code which depended on it.
Added a BOOTDEV option to the CPU to reflect the 4 position boot device selection switch on real VAX 11/750 hardware.
The UBA750 initial state started with the UBA map registers validly mapping the first 256KB of RAM to Unibus space.
Added simulated PCS/WCS memory which boot code on some operating systems (Ultrix and other BSD derived systems) automatically loaded on the VAX 11/750. PCS/WCS was also automatically loaded by the newer versions of the BOOT ROMs.
ISO 8601 support without requiring C99 strftime functionality.
%DATE% yyyy-mm-dd
%TIME% hh:mm:ss
%DATETIME% yyyy-mm-ddThh:mm:ss
%LDATE% mm/dd/yy (Locale Formatted)
%LTIME% hh:mm:ss am/pm (Locale Formatted)
%CTIME% Www Mmm dd hh:mm:ss yyyy (Locale Formatted)
%DATE_YYYY% yyyy (0000-9999)
%DATE_YY% yy (00-99)
%DATE_MM% mm (01-12)
%DATE_DD% dd (01-31)
%DATE_WW% ww (01-53) ISO 8601 week number
%DATE_WYYYY% yyyy (0000-9999) ISO 8601 week year number
%DATE_D% d (1-7) ISO 8601 day of week
%DATE_JJJ% jjj (001-366) day of year
%TIME_HH% hh (00-23)
%TIME_MM% mm (00-59)
%TIME_SS% ss (00-59)
This is the results of external KDP development activities. The KDP side done by Timothe Litt and DMC and DUP by Mark Pizzolato
Additionally, other PDP10 updates from Timothe Litt
Separate boot ROMs are available for each of the DEQNA, DELQA and DELQA-T devices being simulated.
DEQNA-Lock mode has been added to the DELQA and DELQA-T simulations.
1) Single Command Mode: commands are processed between simulated instructions once CR is received.
2) Multiple Command Mode: commands are initiated with the WRU character (usually *E) which suspends simulation execution and commands are processed until a CONTINUE command is entered (or automatically provided if the SET REMOTE TIMEOUT=seconds interval has elapsed).
