diff options
author | 2011-04-27 05:11:18 +0000 | |
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committer | 2011-04-27 05:11:18 +0000 | |
commit | 919913f118760c0ca41ab63512bd5c106f6fd840 (patch) | |
tree | cd6c115c8e9c5280ac4bd16eabfe69c7341151c2 /src/emu/machine/8255ppi.h | |
parent | 84f2c31f7d6f6c667427b1d60c83e6dc9f420d60 (diff) |
Collapsed device_config and device_t into one class. Updated all
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
Diffstat (limited to 'src/emu/machine/8255ppi.h')
-rw-r--r-- | src/emu/machine/8255ppi.h | 34 |
1 files changed, 5 insertions, 29 deletions
diff --git a/src/emu/machine/8255ppi.h b/src/emu/machine/8255ppi.h index ecd7ebe6339..229dc8265cf 100644 --- a/src/emu/machine/8255ppi.h +++ b/src/emu/machine/8255ppi.h @@ -46,37 +46,14 @@ struct ppi8255_interface }; -// ======================> ppi8255_device_config - -class ppi8255_device_config : public device_config, - public ppi8255_interface -{ - friend class ppi8255_device; - - // construction/destruction - ppi8255_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock); - -public: - // allocators - static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock); - virtual device_t *alloc_device(running_machine &machine) const; - -protected: - // device_config overrides - virtual void device_config_complete(); -}; - - // ======================> ppi8255_device -class ppi8255_device : public device_t +class ppi8255_device : public device_t, + public ppi8255_interface { - friend class ppi8255_device_config; - - // construction/destruction - ppi8255_device(running_machine &_machine, const ppi8255_device_config &_config); - public: + // construction/destruction + ppi8255_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); UINT8 ppi8255_r(UINT32 offset); void ppi8255_w(UINT32 offset, UINT8 data); @@ -97,6 +74,7 @@ public: protected: // device-level overrides + virtual void device_config_complete(); virtual void device_start(); virtual void device_reset(); virtual void device_post_load() { } @@ -141,8 +119,6 @@ private: UINT8 m_latch[3]; /* data written to ports */ UINT8 m_output[3]; /* actual output data */ UINT8 m_control; /* mode control word */ - - const ppi8255_device_config &m_config; }; |