This patch gets it running, and splits it into two front ends, one
being a rs232 bus slot so that is can be used as a terminal option. It
adds the MCM66750 character generator, and implements the MC6845 row
update function. Most of the I/O has been worked out with help from
the CT-82 user manual. The various screen formats and the graphics
modes appear to be working and plausible. Printer support has been
added, and a beeper.
* hp9825: optional ROM cartridges added (9825b only, ATM)
* hp9825: optional ROMs added to 9825t, added support for banked ROMs
@5c00, separated RAM & ROM spaces in 9825t
* hp9885: added missing post-amble when writing sectors on disk
* hp9825: added acknowledgments to comments (nw)
* hp9825: changes requested by V.Crabb (nw)
- moved netlists out of driver code into audio/ or machine/ as
nl_xxx.cpp files.
- identified and documented extended validation
- updated arcade, mess and nl targets
* screen: validate crystal values used for set_raw
* driver: get rid of sound start/reset overrides in machine configuration
* vrender0.cpp, nexus3d.cpp: corrected pixel clock crystal value
* mw8080bw.cpp: turned several audio subsystems into devices
* bus/sat_ctrl: don't start subdevices in device_start - the machine does it for you
* mb14241.cpp: simplify handlers
* fgoal.cpp: updated for simplified handlers
* devfind, screen: repair some doxy comments that had rotted with refactoring
* doxygen: disable warnings for undocumented things - it's most of our codebase
* snowbros.cpp: restore an output level setting lost in MCFG removal
There's an outstanding validation error from the HP98543 DIO video card
not using a valid crystal value. Someone needs to find a picture of the
card and confirm or deny the existence of the 39.504MHz crystal.
The various start/reset overrides are bugs waiting to happen. It's not
immediately obvious that the ones run earlier can end up being called
multiple times if subsequent ones throw missing dependencies exceptions.
They're a relic of when everything from the old C-style drivers was
thrown into classes all jumbled together.
Motorola MC6802 evaluation kit. This emulator implements the Keypad and the
LED display, and the MEK68R2 CRT and parallel keyboard interface with support
from the D3BUG2 ROM, and the RS232 terminal support using the MEK68IO and with
support for this also included in the D3BUG2 ROM. Much of the monitor commands
appear to operate properly.
* MEK6809D4: new machine
Motorola MC6809 evaluation board. This emulation implements the keypad and LED
7 segment display, the RS-232 terminal interface, and the MEK68R2 MC6845 CRT
and parallel keyboard interface. The RAM and ROM banking is not yet
implemented but most of the D4BUG monitor commands are supported.
* MEK6802D5: new machine
Motorola MC6802 trainer board. This emulation implements the keypad
and LED 7 segment display, and the RS-232 terminal interface even
though there is no monitor support for it. All the D5BUG monitor
commands appear to be working.
* hp9825: fixed a bug in 9825t
* hp9845: TACO driver re-written from scratch, DC100 tape separated into
a new device, various adaptations
* hp9845: "new TACO" renamed to just "TACO"
