summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/msx/slot/fsa1fm.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/msx/slot/fsa1fm.h')
-rw-r--r--src/devices/bus/msx/slot/fsa1fm.h88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/devices/bus/msx/slot/fsa1fm.h b/src/devices/bus/msx/slot/fsa1fm.h
new file mode 100644
index 00000000000..51028e18311
--- /dev/null
+++ b/src/devices/bus/msx/slot/fsa1fm.h
@@ -0,0 +1,88 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+#ifndef MAME_BUS_MSX_SLOT_FSA1FM_H
+#define MAME_BUS_MSX_SLOT_FSA1FM_H
+
+#pragma once
+
+#include "slot.h"
+#include "machine/i8251.h"
+#include "machine/i8255.h"
+#include "machine/nvram.h"
+
+
+DECLARE_DEVICE_TYPE(MSX_SLOT_FSA1FM, msx_slot_fsa1fm_device)
+DECLARE_DEVICE_TYPE(MSX_SLOT_FSA1FM2, msx_slot_fsa1fm2_device)
+
+
+class msx_slot_fsa1fm2_device : public device_t, public msx_internal_slot_interface
+{
+public:
+ msx_slot_fsa1fm2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ // configuration helpers
+ void set_rom_start(const char *region, uint32_t offset) { m_rom_region.set_tag(region); m_region_offset = offset; }
+
+protected:
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+private:
+ static constexpr size_t RAM_SIZE = 0x2000;
+
+ template <int Bank> void set_view();
+ template <int Bank> void bank_w(u8 data);
+ u8 bank_r(offs_t offset);
+ void control_w(u8 data);
+
+ required_memory_region m_rom_region;
+ memory_bank_array_creator<6> m_bank;
+ memory_view m_view0;
+ memory_view m_view1;
+ memory_view m_view2;
+ memory_view m_view3;
+ memory_view m_view4;
+ memory_view m_view5;
+ uint32_t m_region_offset;
+ uint8_t m_selected_bank[6];
+ bool m_ram_active[6];
+ uint8_t m_control;
+ std::vector<uint8_t> m_ram;
+ std::vector<uint8_t> m_empty_bank;
+};
+
+
+class msx_slot_fsa1fm_device : public device_t, public msx_internal_slot_interface
+{
+public:
+ msx_slot_fsa1fm_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ // configuration helpers
+ void set_rom_start(const char *region, uint32_t offset) { m_rom_region.set_tag(region); m_region_offset = offset; }
+
+protected:
+ virtual void device_start() override;
+ virtual void device_reset() override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual ioport_constructor device_input_ports() const override;
+
+private:
+ static constexpr size_t SRAM_SIZE = 0x2000;
+
+ void map_bank();
+ void i8255_port_a_w(u8 data);
+ void i8255_port_b_w(u8 data);
+ u8 i8255_port_c_r();
+
+ required_device<nvram_device> m_nvram;
+ required_device<i8251_device> m_i8251;
+ required_device<i8255_device> m_i8255;
+ required_ioport m_switch_port;
+ required_memory_region m_rom_region;
+ memory_bank_creator m_rombank;
+ u32 m_region_offset;
+ std::vector<u8> m_sram;
+};
+
+
+#endif // MAME_BUS_MSX_SLOT_FSA1FM_H