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memory: Proxy the handler entry access when adding handlers. [O. Galibert]

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Olivier Galibert 2011-05-31 19:18:16 +00:00
parent e5fb48ffdc
commit afe9864d99
1 changed files with 31 additions and 4 deletions
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35
src/emu/memory.c
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@ -709,6 +709,33 @@ private:
legacy_info m_sublegacy_info[8]; legacy_info m_sublegacy_info[8];
}; };
// ======================> handler_entry_proxy
// A proxy class that contains an handler_entry_read or _write and forwards the setter calls
template<typename _HandlerEntry>
class handler_entry_proxy
{
public:
handler_entry_proxy(_HandlerEntry &_handler) : handler(_handler) {}
handler_entry_proxy(const handler_entry_proxy<_HandlerEntry> &hep) : handler(hep.handler) {}
// forward delegate callbacks configuration
template<typename _delegate> void set_delegate(_delegate delegate, UINT64 mask = 0) const { handler.set_delegate(delegate, mask); }
// forward legacy address space functions configuration
template<typename _func> void set_legacy_func(address_space &space, _func func, const char *name, UINT64 mask = 0) const { handler.set_legacy_func(space, func, name, mask); }
// forward legacy device functions configuration
template<typename _func> void set_legacy_func(device_t &device, _func func, const char *name, UINT64 mask = 0) const { handler.set_legacy_func(device, func, name, mask); }
// forward I/O port access configuration
void set_ioport(const input_port_config &ioport) { handler.set_ioport(ioport); }
private:
_HandlerEntry &handler;
};
// ======================> address_table // ======================> address_table
@ -828,9 +855,9 @@ public:
handler_entry_read &handler_read(UINT32 index) const { assert(index < ARRAY_LENGTH(m_handlers)); return *m_handlers[index]; } handler_entry_read &handler_read(UINT32 index) const { assert(index < ARRAY_LENGTH(m_handlers)); return *m_handlers[index]; }
// range getter // range getter
handler_entry_read &handler_map_range(offs_t bytestart, offs_t byteend, offs_t bytemask, offs_t bytemirror) { handler_entry_proxy<handler_entry_read> handler_map_range(offs_t bytestart, offs_t byteend, offs_t bytemask, offs_t bytemirror) {
UINT32 entry = map_range(bytestart, byteend, bytemask, bytemirror); UINT32 entry = map_range(bytestart, byteend, bytemask, bytemirror);
return handler_read(entry); return handler_entry_proxy<handler_entry_read>(handler_read(entry));
} }
private: private:
@ -890,9 +917,9 @@ public:
handler_entry_write &handler_write(UINT32 index) const { assert(index < ARRAY_LENGTH(m_handlers)); return *m_handlers[index]; } handler_entry_write &handler_write(UINT32 index) const { assert(index < ARRAY_LENGTH(m_handlers)); return *m_handlers[index]; }
// range getter // range getter
handler_entry_write &handler_map_range(offs_t bytestart, offs_t byteend, offs_t bytemask, offs_t bytemirror) { handler_entry_proxy<handler_entry_write> handler_map_range(offs_t bytestart, offs_t byteend, offs_t bytemask, offs_t bytemirror) {
UINT32 entry = map_range(bytestart, byteend, bytemask, bytemirror); UINT32 entry = map_range(bytestart, byteend, bytemask, bytemirror);
return handler_write(entry); return handler_entry_proxy<handler_entry_write>(handler_write(entry));
} }
private: private: