diff options
Diffstat (limited to 'src/emu/dirom.cpp')
-rw-r--r-- | src/emu/dirom.cpp | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/emu/dirom.cpp b/src/emu/dirom.cpp index 3a0ed23692f..87461926cf6 100644 --- a/src/emu/dirom.cpp +++ b/src/emu/dirom.cpp @@ -4,7 +4,9 @@ device_rom_interface::device_rom_interface(const machine_config &mconfig, device_t &device, u8 addrwidth, endianness_t endian, u8 datawidth) : device_memory_interface(mconfig, device), m_rom_tag(device.basetag()), - m_rom_config("rom", endian, datawidth, addrwidth) + m_rom_config("rom", endian, datawidth, addrwidth), + m_bank(nullptr), + m_cur_bank(-1) { } @@ -42,12 +44,14 @@ void device_rom_interface::set_rom_bank(int bank) bank = bank % m_bank_count; } - m_cur_bank = bank; - m_bank->set_entry(bank); - rom_bank_updated(); + if (m_cur_bank != bank) { + m_cur_bank = bank; + m_bank->set_entry(bank); + rom_bank_updated(); + } } -void device_rom_interface::reset_bank() +void device_rom_interface::interface_post_load() { if(m_bank) m_bank->set_entry(m_cur_bank); @@ -85,12 +89,12 @@ void device_rom_interface::set_rom(const void *base, u32 size) void device_rom_interface::interface_pre_start() { + if(!has_space(0)) + return; + m_rom_direct = space().direct<0>(); - m_bank = nullptr; - m_cur_bank = -1; device().save_item(NAME(m_cur_bank)); device().save_item(NAME(m_bank_count)); - device().machine().save().register_postload(save_prepost_delegate(FUNC(device_rom_interface::reset_bank), this)); if(!has_configured_map(0)) { memory_region *reg = device().owner()->memregion(m_rom_tag); |