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Diffstat (limited to 'src/devices/cpu/ns32000/ns32000.h')
-rw-r--r-- | src/devices/cpu/ns32000/ns32000.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/devices/cpu/ns32000/ns32000.h b/src/devices/cpu/ns32000/ns32000.h new file mode 100644 index 00000000000..7b17cafba99 --- /dev/null +++ b/src/devices/cpu/ns32000/ns32000.h @@ -0,0 +1,149 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/***************************************************************************** +* +* ns32000.h +* +* NS32000 CPU family +* +*****************************************************************************/ + +#ifndef MAME_CPU_NS32016_NS32016_H +#define MAME_CPU_NS32016_NS32016_H + +#pragma once + + +/*********************************************************************** + CONSTANTS +***********************************************************************/ + + + +/*********************************************************************** + TYPE DEFINITIONS +***********************************************************************/ + +class ns32000_cpu_device : public cpu_device +{ +public: + // construction/destruction + ns32000_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); + +protected: + ns32000_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, int databits, int addrbits); + + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + + // device_execute_interface overrides + virtual u32 execute_min_cycles() const override { return 1; } + virtual u32 execute_max_cycles() const override { return 6; } + virtual u32 execute_input_lines() const override { return 2; } + virtual void execute_run() override; + virtual void execute_set_input(int inputnum, int state) override; + virtual bool execute_input_edge_triggered(int inputnum) const override { return inputnum == INPUT_LINE_NMI; } + + + // device_memory_interface overrides + virtual space_config_vector memory_space_config() const override; + virtual bool memory_translate(int spacenum, int intention, offs_t &address) override; + + // device_disasm_interface overrides + virtual std::unique_ptr<util::disasm_interface> create_disassembler() override; + + // addressing modes + enum + { + ADDRESSING_MODE_REGISTER_0 = 0, + ADDRESSING_MODE_REGISTER_1, + ADDRESSING_MODE_REGISTER_2, + ADDRESSING_MODE_REGISTER_3, + ADDRESSING_MODE_REGISTER_4, + ADDRESSING_MODE_REGISTER_5, + ADDRESSING_MODE_REGISTER_6, + ADDRESSING_MODE_REGISTER_7, + ADDRESSING_MODE_REGISTER_0_RELATIVE, + ADDRESSING_MODE_REGISTER_1_RELATIVE, + ADDRESSING_MODE_REGISTER_2_RELATIVE, + ADDRESSING_MODE_REGISTER_3_RELATIVE, + ADDRESSING_MODE_REGISTER_4_RELATIVE, + ADDRESSING_MODE_REGISTER_5_RELATIVE, + ADDRESSING_MODE_REGISTER_6_RELATIVE, + ADDRESSING_MODE_REGISTER_7_RELATIVE, + ADDRESSING_MODE_FRAME_MEMORY_RELATIVE, + ADDRESSING_MODE_STACK_MEMORY_RELATIVE, + ADDRESSING_MODE_STATIC_MEMORY_RELATIVE, + ADDRESSING_MODE_RESERVED, + ADDRESSING_MODE_IMMEDIATE, + ADDRESSING_MODE_ABSOLUTE, + ADDRESSING_MODE_EXTERNAL, + ADDRESSING_MODE_TOP_OF_STACK, + ADDRESSING_MODE_FRAME_MEMORY, + ADDRESSING_MODE_STACK_MEMORY, + ADDRESSING_MODE_STATIC_MEMORY, + ADDRESSING_MODE_PROGRAM_MEMORY, + ADDRESSING_MODE_INDEX_BYTES, + ADDRESSING_MODE_INDEX_WORDS, + ADDRESSING_MODE_INDEX_DOUBLE_WORDS, + ADDRESSING_MODE_INDEX_QUAD_WORDS, + }; + + // registers + enum + { + NS32000_PC = 1, + NS32000_SB, NS32000_FP, NS32000_SP1, NS32000_SP0, NS32000_INTBASE, NS32000_PSR, NS32000_MOD, + NS32000_R0, NS32000_R1, NS32000_R2, NS32000_R3, NS32000_R4, NS32000_R5, NS32000_R6, NS32000_R7, + }; + +private: + // configuration + address_space_config m_program_config; + + // emulation state + int m_icount; + + u32 m_pc; + u32 m_sb; + u32 m_fp; + u32 m_sp1; + u32 m_sp0; + u32 m_intbase; + u32 m_psr; + u32 m_mod; + u32 m_r[8]; + u32 m_f[8]; + + u8 m_irq_line; + u8 m_nmi_line; +}; + +class ns32008_cpu_device : public ns32000_cpu_device +{ +public: + ns32008_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + +class ns32016_cpu_device : public ns32000_cpu_device +{ +public: + ns32016_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + +class ns32032_cpu_device : public ns32000_cpu_device +{ +public: + ns32032_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + +/*********************************************************************** + DEVICE TYPE DECLARATIONS +***********************************************************************/ + +DECLARE_DEVICE_TYPE(NS32008, ns32008_cpu_device) +DECLARE_DEVICE_TYPE(NS32016, ns32016_cpu_device) +DECLARE_DEVICE_TYPE(NS32032, ns32032_cpu_device) + +#endif // MAME_CPU_NS32016_NS32016_H |