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Diffstat (limited to 'src/devices/bus/c64/xl80.h')
-rw-r--r-- | src/devices/bus/c64/xl80.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/devices/bus/c64/xl80.h b/src/devices/bus/c64/xl80.h new file mode 100644 index 00000000000..38a90baf6b1 --- /dev/null +++ b/src/devices/bus/c64/xl80.h @@ -0,0 +1,64 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + XL 80 cartridge emulation + +**********************************************************************/ + +#pragma once + +#ifndef __XL80__ +#define __XL80__ + + +#include "emu.h" +#include "exp.h" +#include "video/mc6845.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> c64_xl80_device + +class c64_xl80_device : public device_t, + public device_c64_expansion_card_interface +{ +public: + // construction/destruction + c64_xl80_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + + // not really public + MC6845_UPDATE_ROW( crtc_update_row ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // device_c64_expansion_card_interface overrides + virtual UINT8 c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2); + virtual void c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2); + virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) { return 1; } + virtual int c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) { return 0; } + +private: + required_device<h46505_device> m_crtc; + required_device<palette_device> m_palette; + required_memory_region m_char_rom; + optional_shared_ptr<UINT8> m_ram; +}; + + +// device type definition +extern const device_type C64_XL80; + + +#endif |