diff options
author | 2021-11-28 17:49:58 +0100 | |
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committer | 2021-11-28 17:51:46 +0100 | |
commit | 8027428e4d7ef0e1ebd9cb56dc058ef5c1b4257b (patch) | |
tree | 8f87ad1fc10a66c5070cac953cf0f720afa6dfe8 /src/emu/emumem_het.cpp | |
parent | de1b03e4cd07d77c2946e5966630d0620180e9b0 (diff) |
Fun with flags: Allows handlers to have user-defined flags set on
them, which can them be picked up on access with the
{read,write}_*_flags variants of the accessors. Example use with the
i960 and its burstable rom/ram.
Diffstat (limited to 'src/emu/emumem_het.cpp')
-rw-r--r-- | src/emu/emumem_het.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/emu/emumem_het.cpp b/src/emu/emumem_het.cpp index c9363695cdc..1360badd99c 100644 --- a/src/emu/emumem_het.cpp +++ b/src/emu/emumem_het.cpp @@ -16,6 +16,17 @@ template<int Width, int AddrShift> typename emu::detail::handler_entry_size<Widt return data; } +template<int Width, int AddrShift> std::pair<typename emu::detail::handler_entry_size<Width>::uX, u16> handler_entry_read_tap<Width, AddrShift>::read_flags(offs_t offset, uX mem_mask) const +{ + this->ref(); + + auto pack = this->m_next->read_flags(offset, mem_mask); + m_tap(offset, pack.first, mem_mask); + + this->unref(); + return pack; +} + template<int Width, int AddrShift> std::string handler_entry_read_tap<Width, AddrShift>::name() const { return '(' + m_name + ") " + this->m_next->name(); @@ -37,6 +48,17 @@ template<int Width, int AddrShift> void handler_entry_write_tap<Width, AddrShift this->unref(); } +template<int Width, int AddrShift> u16 handler_entry_write_tap<Width, AddrShift>::write_flags(offs_t offset, uX data, uX mem_mask) const +{ + this->ref(); + + m_tap(offset, data, mem_mask); + u16 flags = this->m_next->write_flags(offset, data, mem_mask); + + this->unref(); + return flags; +} + template<int Width, int AddrShift> std::string handler_entry_write_tap<Width, AddrShift>::name() const { return '(' + m_name + ") " + this->m_next->name(); |