sound devices for each of the Midway 8-bit sound
boards. This will also aid in eventually hooking them
up to pinballs.
Enhanced the mixer interface support to allow for
more than one output line. To use this you need to
use the MCFG_MIXER_ROUTE macro instead of
MCFG_SOUND_ROUTE so that the mixer output index can
be specified. See midway_ssio_device for an example.
make its purpose clearer.
Added delegate support for interrupt callbacks, and made driver_device
variants of the generic interrupt helper callbacks. Did not convert
existing callers yet due to logistical issues.
and paths consistently for devices, I/O ports, memory
regions, memory banks, and memory shares. [Aaron Giles]
NOTE: there are likely regressions lurking here, mostly
due to devices not being properly found. I have temporarily
added more logging to -verbose to help understand what's
going on. Please let me know ASAP if anything that is being
actively worked on got broken.
As before, the driver device is the root device and all
other devices are owned by it. Previously all devices
were kept in a single master list, and the hierarchy was
purely logical. With this change, each device owns its
own list of subdevices, and the hierarchy is explicitly
manifest. This means when a device is removed, all of its
subdevices are automatically removed as well.
A side effect of this is that walking the device list is
no longer simple. To address this, a new set of iterator
classes is provided, which walks the device tree in a depth
first manner. There is a general device_iterator class for
walking all devices, plus templates for a device_type_iterator
and a device_interface_iterator which are used to build
iterators for identifying only devices of a given type or
with a given interface. Typedefs for commonly-used cases
(e.g., screen_device_iterator, memory_interface_iterator)
are provided. Iterators can also provide counts, and can
perform indexed lookups.
All device name lookups are now done relative to another
device. The maching_config and running_machine classes now
have a root_device() method to get the root of the hierarchy.
The existing machine->device("name") is now equivalent to
machine->root_device().subdevice("name").
A proper and normalized device path structure is now
supported. Device names that start with a colon are
treated as absolute paths from the root device. Device
names can also use a caret (^) to refer to the owning
device. Querying the device's tag() returns the device's
full path from the root. A new method basetag() returns
just the final tag.
The new pathing system is built on top of the
device_t::subtag() method, so anyone using that will
automatically support the new pathing rules. Each device
has its own internal map to cache successful lookups so
that subsequent lookups should be very fast.
Updated every place I could find that referenced devices,
memory regions, I/O ports, memory banks and memory shares
to leverage subtag/subdevice (or siblingtag/siblingdevice
which are built on top).
Removed the device_list class, as it doesn't apply any
more. Moved some of its methods into running_machine
instead.
Simplified the device callback system since the new
pathing can describe all of the special-case devices that
were previously handled manually.
Changed the core output function callbacks to be delegates.
Completely rewrote the validity checking mechanism. The
validity checker is now a proper C++ class, and temporarily
takes over the error and warning outputs. All errors and
warnings are collected during a session, and then output in
a consistent manner, with an explicit driver and source file
listed for each one, as well as additional device and/or
I/O port contexts where appropriate. Validity checkers
should no longer explicitly output this information, just
the error, assuming that the context is provided.
Rewrote the software_list_device as a modern device, getting
rid of the software_list_config abstraction and simplifying
things.
Changed the way FLAC compiles so that it works like other
external libraries, and also compiles successfully for MSVC
builds.
a few CPU's to give octal output by default.
Note that for now just some functions things return octal, will add more, but since this change required clean compile better to put it sooner then later (no whatsnew)
using one cothread for each executable device. This functionality is
strictly internal and should result in no changes in scheduling
behavior. However, it now becomes possible to exit out of a device's
execution in the midst of an instruction by calling
machine().scheduler().make_active(). Note that this is somewhat dangerous
for cores that have logic at the start of their execute loop to check for
interrupts or other conditions, as those checks will be skipped upon
resume, so consider this sort of early exiting to be highly experimental
for now. [Aaron Giles, Miodrag Milanovic, byuu]
- non-device timer callbacks
- machine state changing callbacks
- configuration callbacks
- per-screen VBLANK callbacks
- DRC backend callbacks
For the timer case only, I added wrappers for the old-style functions.
Over time, drivers should switch to device timers instead, reducing the
number of timers that are directly allocated through the scheduler.
existing modern devices and the legacy wrappers to work in this
environment. This in general greatly simplifies writing a modern
device. [Aaron Giles]
General notes:
* some more cleanup probably needs to happen behind this change,
but I needed to get it in before the next device modernization
or import from MESS :)
* new template function device_creator which automatically defines
the static function that creates the device; use this instead of
creating a static_alloc_device_config function
* added device_stop() method which is called at around the time
the previous device_t's destructor was called; if you auto_free
anything, do it here because the machine is gone when the
destructor is called
* changed the static_set_* calls to pass a device_t & instead of
a device_config *
* for many devices, the static config structure member names over-
lapped the device's names for devcb_* functions; in these cases
the members in the interface were renamed to have a _cb suffix
* changed the driver_enumerator to only cache 100 machine_configs
because caching them all took a ton of memory; fortunately this
implementation detail is completely hidden behind the
driver_enumerator interface
* got rid of the macros for creating derived classes; doing it
manually is now clean enough that it isn't worth hiding the
details in a macro
Remove redundant machine items from address_space and device_t.
Neither machine nor m_machine are directly accessible anymore.
Instead a new getter machine() is available which returns a
machine reference. So:
space->machine->xxx ==> space->machine().xxx
device->machine->yyy ==> device->machine().yyy
Globally changed all running_machine pointers to running_machine
references. Any function/method that takes a running_machine takes
it as a required parameter (1 or 2 exceptions). Being consistent
here gets rid of a lot of odd &machine or *machine, but it does
mean a very large bulk change across the project.
Structs which have a running_machine * now have that variable
renamed to m_machine, and now have a shiny new machine() method
that works like the space and device methods above. Since most of
these are things that should eventually be devices anyway, consider
this a step in that direction.
98% of the update was done with regex searches. The changes are
architected such that the compiler will catch the remaining
errors:
// find things that use an embedded machine directly and replace
// with a machine() getter call
S: ->machine->
R: ->machine\(\)\.
// do the same if via a reference
S: \.machine->
R: \.machine\(\)\.
// convert function parameters to running_machine &
S: running_machine \*machine([^;])
R: running_machine \&machine\1
// replace machine-> with machine.
S: machine->
R: machine\.
// replace &machine() with machine()
S: \&([()->a-z0-9_]+machine\(\))
R: \1
// sanity check: look for this used as a cast
(running_machine &)
// and change to this:
*(running_machine *)
functionality in favor of alternate mechanisms. Errors are
now reported via an astring rather than via callbacks. Every
option must now specify a type (command, integer, float, string,
boolean, etc). Command behavior has changed so that only one
command is permitted. [Aaron Giles]
Changed fileio system to accept just a raw searchpath instead of
an options/option name combination. [Aaron Giles]
Created emu_options class dervied from core_options which wraps
core emulator options. Added mechanisms to cleanly change the
system name and add/remove system-specific options, versus the
old way using callbacks. Also added read accessors for all the
options, to ensure consistency in how parameters are handled.
Changed most core systems to access emu_options instead of
core_options. Also changed machine->options() to return emu_options.
[Aaron Giles]
Created cli_options class derived from emu_options which adds the
command-line specific options. Updated clifront code to leverage
the new class and the new core behaviors. cli_execute() now accepts
a cli_options object when called. [Aaron Giles]
Updated both SDL and Windows to have their own options classes,
derived from cli_options, which add the OSD-specific options on
top of everything else. Added accessors for all the options so
that queries are strongly typed and simplified. [Aaron Giles]
Out of whatsnew: I've surely screwed up some stuff, though I have
smoke tested a bunch of things. Let me know if you hit anything odd.
Also I know this change will impact the WINUI stuff, please let me
know if there are issues. All the functionality necessary should
still be present. If it's not obvious, please talk to me before
adding stuff to the core_options class.
to pass a core_options object to the constructor, along with
a search path. This required pushing either a running_machine
or a core_options through some code that wasn't previously
ready to handle it. emu_files can be reused over multiple
open/close sessions, and a lot of core code cleaned up
nicely as things were converted to them.
Also created a file_enumerator class for iterating over files
in a searchpath. This replaces the old mame_openpath functions.
Changed machine->options() to return a reference.
Removed public nvram_open() and fixed jchan/kaneko16 to
stop directly saving NVRAM.
Removed most of the mame_options() calls; this will soon go
away entirely, so don't add any more.
Added core_options to device_validity_check() so they can be
used to validate things.
are still intact. The new state_manager class has templatized methods
for saving the various types, and through template specialization can
save more complex system types cleanly (like bitmaps and attotimes).
Added new mechanism to detect proper state save types. This is much
more strict and there will likely be some games/devices that fatalerror
at startup until they are remedied. Spot checking has caught the more
common situations.
The new state_manager is embedded directly in the running_machine,
allowing objects to register state saving in their constructors now.
Added NAME() macro which is a generalization of FUNC() and can be
used to wrap variables that are registered when directly using the
new methods as opposed to the previous macros. For example:
machine->state().save_item(NAME(global_item))
Added methods in the device_t class that implicitly register state
against the current device, making for a cleaner interface.
Just a couple of required regexes for now:
state_save_register_postload( *)\(( *)([^,;]+), *
\3->state().register_postload\1\(\2
state_save_register_presave( *)\(( *)([^,;]+), *
\3->state().register_presave\1\(\2
timers into the scheduler. Retain TIMER devices as a separate wrapper
in timer.c/.h. Inline wrappers are currently provided for all timer
operations; a future update will bulk clean these up.
Rather than using macros which hide generation of a string-ified name
for callback functions, the new methods require passing both a function
pointer plus a name string. A new macro FUNC() can be used to output
both, and another macro MFUNC() can be used to output a stub-wrapped
class member as a callback.
Also added a time() method on the machine, so that machine->time() gives
the current emulated time. A wrapper for timer_get_time is currently
provided but will be bulk replaced in the future.
For this update, convert all classic timer_alloc, timer_set,
timer_pulse, and timer_call_after_resynch calls into method calls on
the scheduler.
For new device timers, added methods to the device_t class that make
creating and managing these much simpler. Modern devices were updated
to use these.
Here are the regexes used; some manual cleanup (compiler-caught) will
be needed since regex doesn't handle nested parentheses cleanly
1. Convert timer_call_after_resynch calls
timer_call_after_resynch( *)\(( *)([^,;]+), *([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().synchronize\1\(\2FUNC(\6), \5, \4\)
2. Clean up trailing 0, NULL parameters
(synchronize[^;]+), 0, NULL\)
\1)
3. Clean up trailing NULL parameters
(synchronize[^;]+), NULL\)
\1)
4. Clean up completely empty parameter lists
synchronize\(FUNC\(NULL\)\)
synchronize()
5. Convert timer_set calls
timer_set( *)\(( *)([^,;]+), *([^,;]+), *([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().timer_set\1\(\2\4, FUNC(\7), \6, \5\)
6. Clean up trailing 0, NULL parameters
(timer_set[^;]+), 0, NULL\)
\1)
7. Clean up trailing NULL parameters
(timer_set[^;]+), NULL\)
\1)
8. Convert timer_set calls
timer_pulse( *)\(( *)([^,;]+), *([^,;]+), *([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().timer_pulse\1\(\2\4, FUNC(\7), \6, \5\)
9. Clean up trailing 0, NULL parameters
(timer_pulse[^;]+), 0, NULL\)
\1)
10. Clean up trailing NULL parameters
(timer_pulse[^;]+), NULL\)
\1)
11. Convert timer_alloc calls
timer_alloc( *)\(( *)([^,;]+), *([^,;]+), *([^);]+)\)
\3->scheduler().timer_alloc\1\(\2FUNC(\4), \5\)
12. Clean up trailing NULL parameters
(timer_alloc[^;]+), NULL\)
\1)
13. Clean up trailing 0 parameters
(timer_alloc[^;]+), 0\)
\1)
14. Fix oddities introduced
\&m_machine->scheduler()
m_machine.scheduler()
global functions which are now superceded by the operators and
methods on the class. [Aaron Giles]
Required mappings are:
attotime_make(a,b) => attotime(a,b)
attotime_to_double(t) => t.as_double()
double_to_attotime(d) => attotime::from_double(d)
attotime_to_attoseconds(t) => t.as_attoseconds()
attotime_to_ticks(t,f) => t.as_ticks(f)
ticks_to_attotime(t,f) => attotime::from_ticks(t,f)
attotime_add(a,b) => a + b
attotime_add_attoseconds(a,b) => a + attotime(0, b)
attotime_sub(a,b) => a - b
attotime_sub_attoseconds(a,b) => a - attotime(0, b)
attotime_compare(a,b) == 0 => a == b
attotime_compare(a,b) != 0 => a != b
attotime_compare(a,b) < 0 => a < b
attotime_compare(a,b) <= 0 => a <= b
attotime_compare(a,b) > 0 => a > b
attotime_compare(a,b) >= 0 => a >= b
attotime_mul(a,f) => a * f
attotime_div(a,f) => a / f
attotime_min(a,b) => min(a,b)
attotime_max(a,b) => max(a,b)
attotime_is_never(t) => t.is_never()
attotime_string(t,p) => t.as_string(p)
In addition, some existing #defines still exist but will go away:
attotime_zero => attotime::zero
attotime_never => attotime::never
ATTOTIME_IN_SEC(s) => attotime::from_seconds(s)
ATTOTIME_IN_MSEC(m) => attotime::from_msec(m)
ATTOTIME_IN_USEC(u) => attotime::from_usec(u)
ATTOTIME_IN_NSEC(n) => attotime::from_nsec(n)
ATTOTIME_IN_HZ(h) => attotime::from_hz(h)
Also removed redundant m_machine from the state and execute
interfaces to fix ambiguity when using m_machine from within
a device that inherits from these.
type safety. If legacy devices still use inline data, those types are not checked.
However, new devices no longer have access to the generic m_inline_data. Instead
their MDRV_* macros should map to calls to static functions in the device config
class which downcast a generic device_config to the specific device config, and
then set the appropriate values. This is not to be done inline in order to prevent
further code bloat in the constructors. See eeprom/7474/i2cmem/okim6295 for examples.
#ifdef'ed several unused machine driver definitions that weren't referenced.
create a stack class that started the profiler in the constructor
and stopped it in the destructor). Sadly, doing that causes gcc to
call out to hook up the unwind chain, and this tanks performance
quite badly, even when the profiler is off.
Since I had already class-ified profiler.c, I decided to keep the old
way of doing things but wrap it in the newer classes. So at least it
wasn't a complete waste of my time.
Search & replace:
profiler_mark_start -> g_profiler.start
profiler_mark_end -> g_profiler.end
devices. Debugger now creates one for each device. C++-ified most
debugger operations to hang off the debugging class, and updated
most callers. This still needs a little cleanup, but it fixes most
issues introduced when the CPUs were moved to their own devices.
Got rid of cpu_count, cpu_first, cpu_next, etc. as they were badly
broken. Also removed cpu_is_executing, cpu_is_suspended,
cpu_get_local_time, and cpu_abort_timeslice.
Some minor name changes:
state_value() -> state()
state_set_value() -> set_state()
cpu_get_total_cycles() == cpudevice->total_cycles()
cpu_clocks_to_attotime() == cpudevice->cycles_to_attotime()
cpu_attotime_to_clocks() == cpudevice->attotime_to_cycles()
In some cases, I updated existing code that fetched and cached
devices to fetch them as cpu_device so that these can be called
without casting.
In other cases, I did the quick & dirty thing which was to downcast
a generic device to a cpu_device and then call the function.
Note that cpu_clocks_to_attotime() and cpu_attotime_to_clocks()
were previously mapping to the device-level functions
clocks_to_attotime() and attotime_to_clocks(). This was different
behavior than before the big devices change, so with this update
I have fixed it to match the previous behavior (i.e., map cycles
not clocks).
This may impact timing of drivers that used these functions on
CPUs that have clock dividers or multipliers.
running_machine definition and implementation.
Moved global machine-level operations and accessors into methods on the
running_machine class. For the most part, this doesn't affect drivers
except for a few occasional bits:
mame_get_phase() == machine->phase()
add_reset_callback() == machine->add_notifier(MACHINE_NOTIFY_RESET, ...)
add_exit_callback() == machine->add_notifier(MACHINE_NOTIFY_EXIT, ...)
mame_get_base_datetime() == machine->base_datetime()
mame_get_current_datetime() == machine->current_datetime()
Cleaned up the region_info class, removing most global region accessors
except for memory_region() and memory_region_length(). Again, this doesn't
generally affect drivers.
this object which can be called multiple times to append new devices
after the initial machine configuration is set up. Updated member
variables to match new naming convention.
Changed the running_machine to take a constructed machine_config
object in the constructor, instead of creating one itself, for
consistency. Also added machine->total_colors() as a shortcut to
machine->config->m_total_colors.
atarijsa.c: just use a generic device for the tms5220 to handle variants until
we have a proper base class (fixes eprom, eprom2 - eprom.c
"assert: src/emu/emucore.h:328: dynamic_cast<_Dest>(src) == src")
decocass.c: invert sense of reset line to MCU (fixes All sets in decocass.c -
Games no longer begin loading (countdown))
metro.c: use generic device for the YM sound since multiple YM chips are used.
(fixes 3kokushi, blzntrnd, dharma, dharmak, dokyusei, dokyusp, gstrik2, gstrik2j,
karatour, ladykill, lastfort, lastforte, lastforte, lastfortg, lastfortk, skyalert,
toride2g, toride2gg, toride2j - metro.c
"assert: src/emu/emucore.h:328: dynamic_cast<_Dest>(src) == src")
mitchell.c: when swapping the OKIM6295 for an MSM5205, use a different tag.
(fixes pangba, spangbl - mitchell.c
"assert: src/emu/emucore.h:328: dynamic_cast<_Dest>(src) == src")
deco32.c: use a proper EEPROM device to fetch the space from.
(fixes tattass, tattassa - deco32.c - Crash while checking "Jack Ram" before start
"assert: src/emu/emucore.h:328: dynamic_cast<_Dest>(src) == src")
system1.c: use a proper z80pio_device (cleanup)
vconv.c: support -g* options for MSVC builds (cleanup)
m377101.c/g65816.c: fix fault logic for mapping icount (fixes
All sets in namcofl.c, namcona1.c, namconb1.c, nss.c, sfcbox.c, snesb.c
airco22b, cybrcycc, dirtdash, rrf, timecrs, timecrsa - namcos22.c
Hanging immediately or shortly after start.
"assert: src/emu/schedule.c:189: ran >= *exec->m_icount")
schedule.c/diexec.c/timer.c: add temporary logging to permit direct comparisons with
earlier games timing (cleanup)
generic.c: fix computation of time for turning off the IRQ when using
generic_pulse_irq() to account for CPU-local time (fixes
Any sets in bublbobl.c which use the which use m6801 - Frequent/Random watchdog resets.)
z80pio.c: convert internal line states to bool, and fix typo (control_write should have
been data_write in one place) (fixes Any system1.c games which use z80pio - No sound)
* suspend-until-time was broken (CPU would be suspended and never resumed)
* timer devices would fire an initial callback even if not set up with a time yet
* triggers requested after a time would fire twice; once right away and once at the target time
Fixes many regressions.
performance as a result of this change. Do not panic; report issues to the
list in the short term and I will look into them. There are probably also
some details I forgot to mention. Please ask questions if anything is not
clear.
NOTE: This is a major internal change to the way devices are handled in
MAME. There is a small impact on drivers, but the bulk of the changes are
to the devices themselves. Full documentation on the new device handling
is in progress at http://mamedev.org/devwiki/index.php/MAME_Device_Basics
Defined two new casting helpers: [Aaron Giles]
downcast<type>(value) should be used for safe and efficient downcasting
from a base class to a derived class. It wraps static_cast<> by adding
an assert that a matching dynamic_cast<> returns the same result in
debug builds.
crosscast<type>(value) should be used for safe casting from one type to
another in multiple inheritance scenarios. It compiles to a
dynamic_cast<> plus an assert on the result. Since it does not optimize
down to static_cast<>, you should prefer downcast<> over crosscast<>
when you can.
Redefined running_device to be a proper C++ class (now called device_t).
Same for device_config (still called device_config). All devices and
device_configs must now be derived from these base classes. This means
each device type now has a pair of its own unique classes that describe
the device. Drivers are encouraged to use the specific device types
instead of the generic running_device or device_t classes. Drivers that
have a state class defined in their header file are encouraged to use
initializers off the constructor to locate devices. [Aaron Giles]
Removed the following fields from the device and device configuration
classes as they never were necessary or provided any use: device class,
device family, source file, version, credits. [Aaron Giles]
Added templatized variant of machine->device() which performs a downcast
as part of the device fetch. Thus machine->device<timer_device>("timer")
will locate a device named "timer", downcast it to a timer_device, and
assert if the downcast fails. [Aaron Giles]
Removed most publically accessible members of running_device/device_t in
favor of inline accessor functions. The only remaining public member is
machine. Thus all references to device->type are now device->type(), etc.
[Aaron Giles]
Created a number of device interface classes which are designed to be mix-
ins for the device classes, providing specific extended functionality and
information. There are standard interface classes for sound, execution,
state, nvram, memory, and disassembly. Devices can opt into 0 or more of
these classes. [Aaron Giles]
Converted the classic CPU device to a standard device that uses the
execution, state, memory, and disassembly interfaces. Used this new class
(cpu_device) to implement the existing CPU device interface. In the future
it will be possible to convert each CPU core to its own device type, but
for now they are still all CPU devices with a cpu_type() that specifies
exactly which kind of CPU. [Aaron Giles]
Created a new header devlegcy.h which wraps the old device interface using
some special template classes. To use these with an existing device,
simply remove from the device header the DEVICE_GET_INFO() declaration and
the #define mapping the ALL_CAPS name to the DEVICE_GET_INFO. In their
place #include "devlegcy.h" and use the DECLARE_LEGACY_DEVICE() macro.
In addition, there is a DECLARE_LEGACY_SOUND_DEVICE() macro for wrapping
existing sound devices into new-style devices, and a
DECLARE_LEGACY_NVRAM_DEVICE() for wrapping NVRAM devices. Also moved the
token and inline_config members to the legacy device class, as these are
not used in modern devices. [Aaron Giles]
Converted the standard base devices (VIDEO_SCREEN, SPEAKER, and TIMER)
from legacy devices to the new C++ style. Also renamed VIDEO_SCREEN to
simply SCREEN. The various global functions that were previously used to
access information or modify the state of these devices are now replaced
by methods on the device classes. Specifically:
video_screen_configure() == screen->configure()
video_screen_set_visarea() == screen->set_visible_area()
video_screen_update_partial() == screen->update_partial()
video_screen_update_now() == screen->update_now()
video_screen_get_vpos() == screen->vpos()
video_screen_get_hpos() == screen->hpos()
video_screen_get_vblank() == screen->vblank()
video_screen_get_hblank() == screen->hblank()
video_screen_get_width() == screen->width()
video_screen_get_height() == screen->height()
video_screen_get_visible_area() == screen->visible_area()
video_screen_get_time_until_pos() == screen->time_until_pos()
video_screen_get_time_until_vblank_start() ==
screen->time_until_vblank_start()
video_screen_get_time_until_vblank_end() ==
screen->time_until_vblank_end()
video_screen_get_time_until_update() == screen->time_until_update()
video_screen_get_scan_period() == screen->scan_period()
video_screen_get_frame_period() == screen->frame_period()
video_screen_get_frame_number() == screen->frame_number()
timer_device_adjust_oneshot() == timer->adjust()
timer_device_adjust_periodic() == timer->adjust()
timer_device_reset() == timer->reset()
timer_device_enable() == timer->enable()
timer_device_enabled() == timer->enabled()
timer_device_get_param() == timer->param()
timer_device_set_param() == timer->set_param()
timer_device_get_ptr() == timer->get_ptr()
timer_device_set_ptr() == timer->set_ptr()
timer_device_timeelapsed() == timer->time_elapsed()
timer_device_timeleft() == timer->time_left()
timer_device_starttime() == timer->start_time()
timer_device_firetime() == timer->fire_time()
Updated all drivers that use the above functions to fetch the specific
device type (timer_device or screen_device) and call the appropriate
method. [Aaron Giles]
Changed machine->primary_screen and the 'screen' parameter to VIDEO_UPDATE
to specifically pass in a screen_device object. [Aaron Giles]
Defined a new custom interface for the Z80 daisy chain. This interface
behaves like the standard interfaces, and can be added to any device that
implements the Z80 daisy chain behavior. Converted all existing Z80 daisy
chain devices to new-style devices that inherit this interface.
[Aaron Giles]
Changed the way CPU state tables are built up. Previously, these were data
structures defined by a CPU core which described all the registers and how
to output them. This functionality is now part of the state interface and
is implemented via the device_state_entry class. Updated all CPU cores
which were using the old data structure to use the new form. The syntax is
currently awkward, but will be cleaner for CPUs that are native new
devices. [Aaron Giles]
Converted the okim6295 and eeprom devices to the new model. These were
necessary because they both require multiple interfaces to operate and it
didn't make sense to create legacy device templates for these single cases.
(okim6295 needs the sound interface and the memory interface, while eeprom
requires both the nvram and memory interfaces). [Aaron Giles]
Changed parameters in a few callback functions from pointers to references
in situations where they are guaranteed to never be NULL. [Aaron Giles]
Removed MDRV_CPU_FLAGS() which was only used for disabling a CPU. Changed
it to MDRV_DEVICE_DISABLE() instead. Updated drivers. [Aaron Giles]
Reorganized the token parsing for machine configurations. The core parsing
code knows how to create/replace/remove devices, but all device token
parsing is now handled in the device_config class, which in turn will make
use of any interface classes or device-specific token handling for custom
token processing. [Aaron Giles]
Moved many validity checks out of validity.c and into the device interface
classes. For example, address space validation is now part of the memory
interface class. [Aaron Giles]
Consolidated address space parameters (bus width, endianness, etc.) into
a single address_space_config class. Updated all code that queried for
address space parameters to use the new mechanism. [Aaron Giles]
