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Diffstat (limited to 'src/devices/bus/megadrive/svp.h')
-rw-r--r-- | src/devices/bus/megadrive/svp.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/devices/bus/megadrive/svp.h b/src/devices/bus/megadrive/svp.h new file mode 100644 index 00000000000..0f128240a86 --- /dev/null +++ b/src/devices/bus/megadrive/svp.h @@ -0,0 +1,75 @@ +// license:??? +// copyright-holders:Fabio Priuli,Pierpaolo Prazzoli,Grazvydas Ignotas +#ifndef __MD_SVP_H +#define __MD_SVP_H + +#include "md_slot.h" +#include "cpu/ssp1601/ssp1601.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> md_rom_svp_device + +class md_rom_svp_device : public device_t, + public device_md_cart_interface +{ +public: + // construction/destruction + md_rom_svp_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); + md_rom_svp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + +//protected: + // device-level overrides + virtual void device_start(); + virtual machine_config_constructor device_mconfig_additions() const; + virtual ioport_constructor device_input_ports() const; + virtual void set_bank_to_rom(const char *banktag, UINT32 offset); + + required_device<device_t> m_svp; + required_ioport m_test_ipt; + + // reading and writing + virtual DECLARE_READ16_MEMBER(read); + virtual DECLARE_WRITE16_MEMBER(write); + virtual DECLARE_READ16_MEMBER(read_a15); + virtual DECLARE_WRITE16_MEMBER(write_a15); + + virtual int read_test(); + + virtual DECLARE_READ16_MEMBER(rom_read1); + virtual DECLARE_READ16_MEMBER(rom_read2); + + virtual DECLARE_READ16_MEMBER(read_pm0); + virtual DECLARE_READ16_MEMBER(read_pm1); + virtual DECLARE_READ16_MEMBER(read_pm2); + virtual DECLARE_READ16_MEMBER(read_pm4); + virtual DECLARE_READ16_MEMBER(read_xst); + virtual DECLARE_READ16_MEMBER(read_pmc); + virtual DECLARE_READ16_MEMBER(read_al); + virtual DECLARE_WRITE16_MEMBER(write_pm0); + virtual DECLARE_WRITE16_MEMBER(write_pm1); + virtual DECLARE_WRITE16_MEMBER(write_pm2); + virtual DECLARE_WRITE16_MEMBER(write_pm4); + virtual DECLARE_WRITE16_MEMBER(write_xst); + virtual DECLARE_WRITE16_MEMBER(write_pmc); + virtual DECLARE_WRITE16_MEMBER(write_al); + + UINT32 pm_io(int reg, int write, UINT32 d); + + UINT32 m_pmac_read[6]; // read modes/addrs for PM0-PM5 + UINT32 m_pmac_write[6]; // write ... + PAIR m_pmc; + UINT32 m_emu_status; + UINT16 m_xst; // external status, mapped at a15000 and a15002 on 68k side. + UINT16 m_xst2; // status of XST (bit1 set when 68k writes to XST) + UINT8 m_iram[0x800]; // IRAM (0-0x7ff) + UINT8 m_dram[0x20000]; // [0x20000]; +}; + + +// device type definition +extern const device_type MD_ROM_SVP; + +#endif |