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author Olivier Galibert <galibert@pobox.com>2020-05-25 16:42:42 +0200
committer Olivier Galibert <galibert@pobox.com>2020-05-25 16:42:57 +0200
commit22513fb6fe281f5ccb75aaddb6417a12a66c313d (patch)
tree3cf84032cc6482d685a8dbb57e015bd17c7f7fdc /src/emu/emumem_heu.h
parente42c2d2874cf9c1092c01ab5ce9ef997d465ce25 (diff)
emumem: A little more speedup. cache and specific change syntax, and are not pointers anymore [O. Galibert]
The last(?) two changes are: - Add a template parameter to everything (theoretically the address space width, in practice a level derived from it to keep as much compatibility between widths as possible) so that the shift size becomes a constant. - Change the syntax of declaring and initializing the caches and specifics so that they're embedded in the owner device. Solves lifetime issues and also removes one indirection (looking up the base dispatch pointer through the cache/specific pointer).
Diffstat (limited to 'src/emu/emumem_heu.h')
-rw-r--r--src/emu/emumem_heu.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/emu/emumem_heu.h b/src/emu/emumem_heu.h
index dbc0cf064f7..d084fddfe98 100644
--- a/src/emu/emumem_heu.h
+++ b/src/emu/emumem_heu.h
@@ -5,7 +5,7 @@
// merges/splits an access among multiple handlers (unitmask support)
-template<int Width, int AddrShift, int Endian> class handler_entry_read_units : public handler_entry_read<Width, AddrShift, Endian>
+template<int Width, int AddrShift, endianness_t Endian> class handler_entry_read_units : public handler_entry_read<Width, AddrShift, Endian>
{
public:
using uX = typename emu::detail::handler_entry_size<Width>::uX;
@@ -15,7 +15,7 @@ public:
handler_entry_read_units(const memory_units_descriptor<Width, AddrShift, Endian> &descriptor, u8 ukey, const handler_entry_read_units *src);
~handler_entry_read_units();
- uX read(offs_t offset, uX mem_mask) override;
+ uX read(offs_t offset, uX mem_mask) const override;
std::string name() const override;
@@ -46,7 +46,7 @@ private:
static std::string m2r(uX mask);
};
-template<int Width, int AddrShift, int Endian> class handler_entry_write_units : public handler_entry_write<Width, AddrShift, Endian>
+template<int Width, int AddrShift, endianness_t Endian> class handler_entry_write_units : public handler_entry_write<Width, AddrShift, Endian>
{
public:
using uX = typename emu::detail::handler_entry_size<Width>::uX;
@@ -56,7 +56,7 @@ public:
handler_entry_write_units(const memory_units_descriptor<Width, AddrShift, Endian> &descriptor, u8 ukey, const handler_entry_write_units<Width, AddrShift, Endian> *src);
~handler_entry_write_units();
- void write(offs_t offset, uX data, uX mem_mask) override;
+ void write(offs_t offset, uX data, uX mem_mask) const override;
std::string name() const override;