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.
Commit a9ac7c153 properly avoided writing past the end of cache_line,
but in doing so introduced an error as to the first memory address that
should be written. This fix avoids writing past the cache_line by simply
reading the previous memory location.
Fixes the CP/M 68K simulation example and issue #181
