All interesting simh host platforms have long supported libSDL2
functionality which wasn't the case when sim_video was initially
implemented. The mixed API set significantly complicates maintaining
and extending sim_video, hence this explicit effort to remove
the vestiges of the old libSDL API.
- when the file ends on a block boundary, the block count was
off by one.
- always use the max_record_size in ANSI labels independent of
the ansi-type.
The paradigm of using a "weak" linker reference to find what was
previously the vm_init_routine() doesn't work reliably on all compile
environments supported by the simulators. This has been reported
in #794 and it came up again in #862. This change assures that
it will not come up again AND it reliably solves the problem with
Visual Studio compilers (and linker) that randomly chooses whether
to have the desired effect or not.
Of the 82 simulators which are currently part of simh, only these
three used the sim_vm_init() interface, so removing it had relatively
minor impact.
The STEP command was inadvertently allowed to be parsed in non-master
mode connections, but it didn't actually work. It has now been removed
from the generic remote console command table.
This was illuminated as of the discussion in #854
This allowed user entered S to match the SAMPLEOUT command instead
of STEP. That then identified a bug in the intended socket output
processing to attempt to be written to the undefined debug file.
As discussed in #854
Simulators running directly in a Windows console session, that don't
have the console traffic redirected to a telnet session via
SET CONSOLE TELNET=nnn
now behave similarly to the default behavior experienced on
non-windows hosts where the terminal session usually defaults to
wrapping at EOL. Users who want more specific control of this behavior
can run their console via a telnet session with a terminal emulator that
lets them explicitly set these features in the emulator.
This change reintroduces this behavior which got lost when windows
support for ANSI (VT100) escape sequences were added to the console
sessions.
Previously, numeric values incorrectly had a string representation of
"". This allowed arbitrary equality comparisons to succeed in unexpected
ways.
Reported by Robert Sancho Villas
gcc 9.3.0 on Ubuntu 20.04 somehow knows that the length of the
string pcap_lib_version() returns can be 256 bytes long. It then
generates a warning about truncation potential. The problematic
code path will only be executed on Windows with an old version of
Npcap, but the compiler can't know that. Make the local buffer
larger to silence the resulting noise.
Floppy disk images are potentially used as a medium of data exchange
between some hosts and simulators and the disk information can confuse
this process.
As discussed in #847
This implements the principle of "least surprise", in that users won't
normally expect to start overwriting an existing file on these devices.
Real hardware didn't behave that way. A new (empty) file can always
be created with the -N switch on the ATTACH.
This implements the principle of "least surprise", in that users won't
normally expect to start overwriting an existing file on these devices.
Real hardware didn't behave that way. A new (empty) file can always
be created with the -N switch on the ATTACH.
This implements the principle of "least surprise", in that users won't
normally expect to start overwriting an existing file on these devices.
Real hardware didn't behave that way. A new (empty) file can always
be created with the -N switch on the ATTACH.
This implements the principle of "least surprise", in that users won't
normally expect to start overwriting an existing file on these devices.
Real hardware didn't behave that way. A new (empty) file can always
be created with the -N switch on the ATTACH.
