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Diffstat (limited to 'src/devices/bus/msx/cart/super_swangi.cpp')
-rw-r--r--src/devices/bus/msx/cart/super_swangi.cpp59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/devices/bus/msx/cart/super_swangi.cpp b/src/devices/bus/msx/cart/super_swangi.cpp
new file mode 100644
index 00000000000..cd17e6db0d8
--- /dev/null
+++ b/src/devices/bus/msx/cart/super_swangi.cpp
@@ -0,0 +1,59 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+#include "emu.h"
+#include "super_swangi.h"
+
+namespace {
+
+class msx_cart_super_swangi_device : public device_t, public msx_cart_interface
+{
+public:
+ msx_cart_super_swangi_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, MSX_CART_SUPER_SWANGI, tag, owner, clock)
+ , msx_cart_interface(mconfig, *this)
+ , m_rombank(*this, "rombank")
+ { }
+
+ virtual std::error_condition initialize_cartridge(std::string &message) override;
+
+protected:
+ // device_t implementation
+ virtual void device_start() override { }
+
+private:
+ void bank_w(u8 data);
+
+ memory_bank_creator m_rombank;
+};
+
+std::error_condition msx_cart_super_swangi_device::initialize_cartridge(std::string &message)
+{
+ if (!cart_rom_region())
+ {
+ message = "msx_cart_super_swangi_device: Required region 'rom' was not found.";
+ return image_error::INTERNAL;
+ }
+
+ if (cart_rom_region()->bytes() < 0x10000)
+ {
+ message = "msx_cart_super_swangi_device: Region 'rom' has unsupported size.";
+ return image_error::INVALIDLENGTH;
+ }
+
+ m_rombank->configure_entries(0, 4, cart_rom_region()->base(), 0x4000);
+
+ page(1)->install_rom(0x4000, 0x7fff, cart_rom_region()->base());
+ page(2)->install_read_bank(0x8000, 0xbfff, m_rombank);
+ page(2)->install_write_handler(0x8000, 0x8000, emu::rw_delegate(*this, FUNC(msx_cart_super_swangi_device::bank_w)));
+
+ return std::error_condition();
+}
+
+void msx_cart_super_swangi_device::bank_w(u8 data)
+{
+ m_rombank->set_entry((data >> 1) & 0x03);
+}
+
+} // anonymous namespace
+
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_SUPER_SWANGI, msx_cart_interface, msx_cart_super_swangi_device, "msx_cart_super_swangi", "MSX Cartridge - Super Swangi")