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core: link state entries to parent state interface

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In device state, link a single device_state_entry to its parent
device_state_interface and expose a parent_state() getter.

Signed-off-by: Luca Bruno <lucab@debian.org>
This commit is contained in:
Luca Bruno 2015-01-17 23:29:07 +01:00
parent d2ff267ac1
commit c95ed9c31d
2 changed files with 12 additions and 8 deletions
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14
src/emu/distate.c
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@ -49,8 +49,9 @@ const UINT64 device_state_entry::k_decimal_divisor[] =
// device_state_entry - constructor
//-------------------------------------------------
device_state_entry::device_state_entry(int index, const char *symbol, void *dataptr, UINT8 size)
: m_next(NULL),
device_state_entry::device_state_entry(int index, const char *symbol, void *dataptr, UINT8 size, device_state_interface *dev)
: m_device_state(dev),
m_next(NULL),
m_index(index),
m_dataptr(dataptr),
m_datamask(0),
@ -86,8 +87,9 @@ device_state_entry::device_state_entry(int index, const char *symbol, void *data
m_symbol.cpy("CURFLAGS");
}
device_state_entry::device_state_entry(int index)
: m_next(NULL),
device_state_entry::device_state_entry(int index, device_state_interface *dev)
: m_device_state(dev),
m_next(NULL),
m_index(index),
m_dataptr(NULL),
m_datamask(0),
@ -523,7 +525,7 @@ device_state_entry &device_state_interface::state_add(int index, const char *sym
assert(symbol != NULL);
// allocate new entry
device_state_entry *entry = global_alloc(device_state_entry(index, symbol, data, size));
device_state_entry *entry = global_alloc(device_state_entry(index, symbol, data, size, this));
// append to the end of the list
m_state_list.append(*entry);
@ -543,7 +545,7 @@ device_state_entry &device_state_interface::state_add(int index, const char *sym
device_state_entry &device_state_interface::state_add_divider(int index)
{
// allocate new entry
device_state_entry *entry = global_alloc(device_state_entry(index));
device_state_entry *entry = global_alloc(device_state_entry(index, this));
// append to the end of the list
m_state_list.append(*entry);

6
src/emu/distate.h
View File

@ -49,8 +49,8 @@ class device_state_entry
private:
// construction/destruction
device_state_entry(int index, const char *symbol, void *dataptr, UINT8 size);
device_state_entry(int index);
device_state_entry(int index, const char *symbol, void *dataptr, UINT8 size, device_state_interface *dev);
device_state_entry(int index, device_state_interface *dev);
public:
// post-construction modifiers
@ -70,6 +70,7 @@ public:
const char *symbol() const { return m_symbol; }
bool visible() const { return ((m_flags & DSF_NOSHOW) == 0); }
bool divider() const { return m_flags & DSF_DIVIDER; }
device_state_interface *parent_state() const {return m_device_state;}
protected:
// device state flags
@ -98,6 +99,7 @@ protected:
static const UINT64 k_decimal_divisor[20]; // divisors for outputting decimal values
// public state description
device_state_interface *m_device_state; // link to parent device state
device_state_entry * m_next; // link to next item
UINT32 m_index; // index by which this item is referred
generic_ptr m_dataptr; // pointer to where the data lives