These changes cure a number of issues in RSTS/E, which is more
sensitive to details of emulation than most:
1. Additional KMC opcodes supported for ROMI
2. MCLR now initializes the CSRs per the spec
3. MCLR and ROMI are processed immediately at CSR write rather than
being deferred, because these actions are implemented in the device
hardware rather than in the microprogram.
These changes facilitate more robust parameter type checking and helps
to identify unexpected coding errors.
Most simulators can now also be compiled with a C++ compiler without
warnings.
Additionally, these changes have also been configured to facilitate easier
backporting of simulator and device simulation modules to run under the
simh v3.9+ SCP framework.
Cleanup/Simplification by:
1) removing irrelevant master flag variable from sim_close_sock and thus sim_err_sock
2) change previous boolean feature arguments (datagram, nodelay, reuseaddr) to flag bits in a single option argument. This allows for features to be added by new flag bits which don't change the calling signatures.
3) changed all status returns to be int (vs t_stat) with success being 0 and error being -1
4) removed unneeded simh specific type references to allow sim_sock to be used by n
Extended API by providing flags to influence socket setup/behavior:
SIM_SOCK_OPT_REUSEADDR Retains prior behavior when sim_switches had -U set
SIM_SOCK_OPT_DATAGRAM UDP socket setup provided for when prior datagram argument was specified
SIM_SOCK_OPT_NODELAY TCP Nagle disable provided for when prior nodelay argument was specified
SIM_SOCK_OPT_BLOCKING Blocking socket mode (detault is non blocking)
Migrated the XQ help to the hierarchical help model. This is a work in progress which will eventually merge much from 0readme_ethernet.txt into the device help.
The goals here being to simplify calling code while getting consistent output delivered everywhere it may be useful.
Modified most places which explicitly used sim_log or merely called printf to now avoid doing that and merely call sim_printf().
Now all DDCMP capable devices KDP, DUP and DMC/DMR have access to packet corruption generation to simulate real world imperfect data lines for protocol testing.
Also, always process initialization commands without regard to whether the DMC/DMR line is attached and return diag error status if the line isn't attached.
The interrupt acknowledgment logic for the transmit interrupt inadvertently cleared the device interrupt pending flag even when other devices potentially had pending interrupts.
Added line specific indications in the debug output for packet trace debugging.
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
