The 'tarbell' device now supports Tarbell model 1011 single density
and model 2022 double density floppy disk controllers. The model is
selected using the "SET TARBELL MODEL={SD|DD}" command. Also removed
some unused local variables.
This avoids a potential invalid pointer dereference when formatting
the return value from sim_instr() if it is < SCPE_BASE but greater
than the previously defined static array size.sizeof
Update simh.doc to reflect this generic change.
This commit adds a "PMMI" device to the AltairZ80 VM that emulates
the PMMI Communications MM-103 MODEM & Communications Adapter.
This device was added at the request of a Facebook user that is
attempting to preserve and document various relevant communications
programs for CP/M and allow users to experience communicating and
sharing information with other remote computers of the same time
period, all on modern hardware.
This device attempts to emulate the MC6860L digital modem chip in
such a way that communications software written for the PMMI MM-103 can
communicate over a serial port or socket without a phone line or
the ability to MOdulate/DEModulate data over a phone line.
This commit adds two new devices, "M2SIO0" and "M2SIO1", to the AltairZ80
VM. These two independent devices emulate "raw" 88-2SIO ports that can
be used instead of the "SIO" device for attaching socket and serial
ports using TMXR.
No address value are changed, by a pointer the the array object is
explicitly provided which allows validation logic to determine the
size of the array object rather than merely it's first element.
Under CYGWIN the conditional tests in the altairz80_sio.c source file for the
SIMH pseudo device's getHostsFilenamesCmd and resetSIMHInterfaceCmd
functions need to have UNIX_PLATFORM set to 1 - otherwise they do nothing!
With this fix, the HDIR host command from CP/M now displays a list of files
in host system's current directory under CYGWIN.
