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bus/msx/slot/disk.cpp: Added banking support for MSX Turbo-R internal disk ROM. (#12117)

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wilbertpol 2024-03-09 03:55:12 +00:00 committed by GitHub
parent 3b02100587
commit bdd2885fe7
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2 changed files with 16 additions and 1 deletions
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12
src/devices/bus/msx/slot/disk.cpp
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@ -586,6 +586,7 @@ void msx_slot_disk3_tc8566_2_drives_device::device_add_mconfig(machine_config &c
msx_slot_disk4_tc8566_device::msx_slot_disk4_tc8566_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: msx_slot_tc8566_disk_device(mconfig, MSX_SLOT_DISK4_TC8566, tag, owner, clock, DRIVES_1)
, m_rombank(*this, "rombank")
{
}
@ -593,7 +594,11 @@ void msx_slot_disk4_tc8566_device::device_start()
{
msx_slot_tc8566_disk_device::device_start();
page(1)->install_rom(0x4000, 0x7fff, rom_base());
m_rombank->configure_entries(0, 4, rom_base(), 0x4000);
m_rombank->set_entry(0);
page(1)->install_read_bank(0x4000, 0x7fff, m_rombank);
page(1)->install_write_handler(0x7ff0, 0x7ff0, emu::rw_delegate(*this, FUNC(msx_slot_disk4_tc8566_device::bank_w)));
// 0x7ff1 media change register
page(1)->install_write_handler(0x7ff2, 0x7ff2, emu::rw_delegate(*this, FUNC(msx_slot_disk4_tc8566_device::dor_w)));
page(1)->install_write_handler(0x7ff3, 0x7ff3, emu::rw_delegate(*m_fdc, FUNC(tc8566af_device::cr1_w)));
@ -607,6 +612,11 @@ void msx_slot_disk4_tc8566_device::device_add_mconfig(machine_config &config)
add_mconfig(config);
}
void msx_slot_disk4_tc8566_device::bank_w(u8 data)
{
m_rombank->set_entry(data & 0x03);
}

5
src/devices/bus/msx/slot/disk.h
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@ -313,6 +313,11 @@ public:
protected:
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
private:
void bank_w(u8 control);
memory_bank_creator m_rombank;
};