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Diffstat (limited to 'src/devices/cpu/vt61/vt61.h')
-rw-r--r-- | src/devices/cpu/vt61/vt61.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/devices/cpu/vt61/vt61.h b/src/devices/cpu/vt61/vt61.h new file mode 100644 index 00000000000..f2d463f273c --- /dev/null +++ b/src/devices/cpu/vt61/vt61.h @@ -0,0 +1,69 @@ +// license:BSD-3-Clause +// copyright-holders:AJR + +#ifndef MAME_CPU_VT61_VT61_H +#define MAME_CPU_VT61_VT61_H + +#pragma once + +class vt61_cpu_device : public cpu_device +{ +public: + enum { + VT61_PC, + VT61_AC, + VT61_MAR, VT61_MALO, VT61_MAHI, + VT61_MDR, + VT61_IR, + VT61_R0, VT61_R1, VT61_R2, VT61_R3, + VT61_R4, VT61_R5, VT61_R6, VT61_R7, + VT61_R8, VT61_R9, VT61_R10, VT61_R11, + VT61_R12, VT61_R13, VT61_R14, VT61_R15 + }; + + enum { + AS_IDR = 2 + }; + + // construction/destruction + vt61_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + + // device_execute_interface overrides + virtual void execute_run() override; + + // device_disasm_interface overrides + virtual std::unique_ptr<util::disasm_interface> create_disassembler() override; + + // device_memory_interface overrides + virtual space_config_vector memory_space_config() const override; + + // device_state_interface overrides + void state_string_export(const device_state_entry &entry, std::string &str) const override; + +private: + // address spaces + address_space_config m_program_config; + address_space_config m_memory_config; + address_space_config m_idr_config; + memory_access_cache<1, -1, ENDIANNESS_LITTLE> *m_program_cache; + memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_memory_cache; + memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_idr_cache; + + // internal state + u16 m_pc; + u8 m_ac; + u16 m_mar; + u8 m_mdr; + u8 m_ir; + u8 m_sp[16]; // scratchpad memory + s32 m_icount; +}; + +DECLARE_DEVICE_TYPE(VT61_CPU, vt61_cpu_device) + +#endif // MAME_CPU_VT61_VT61_H |