diff options
Diffstat (limited to 'src/devices/cpu/hmcs40/hmcs40.h')
-rw-r--r-- | src/devices/cpu/hmcs40/hmcs40.h | 223 |
1 files changed, 144 insertions, 79 deletions
diff --git a/src/devices/cpu/hmcs40/hmcs40.h b/src/devices/cpu/hmcs40/hmcs40.h index a19161f5dcf..c81ac756829 100644 --- a/src/devices/cpu/hmcs40/hmcs40.h +++ b/src/devices/cpu/hmcs40/hmcs40.h @@ -12,7 +12,7 @@ #pragma once -// I/O ports setup +// input lines enum { @@ -81,9 +81,11 @@ enum class hmcs40_cpu_device : public cpu_device { public: + virtual ~hmcs40_cpu_device(); + // max 8 4-bit R ports - template <std::size_t Bit> auto read_r() { return m_read_r[Bit].bind(); } - template <std::size_t Bit> auto write_r() { return m_write_r[Bit].bind(); } + template <std::size_t N> auto read_r() { return m_read_r[N].bind(); } + template <std::size_t N> auto write_r() { return m_write_r[N].bind(); } // 16-bit discrete auto read_d() { return m_read_d.bind(); } @@ -92,112 +94,117 @@ public: protected: enum { - HMCS40_FAMILY_HMCS42 = 0, - HMCS40_FAMILY_HMCS43, - HMCS40_FAMILY_HMCS44, - HMCS40_FAMILY_HMCS45, - HMCS40_FAMILY_HMCS46, - HMCS40_FAMILY_HMCS47 + HMCS42_FAMILY = 0, + HMCS43_FAMILY, + HMCS44_FAMILY, + HMCS45_FAMILY, + HMCS46_FAMILY, + HMCS47_FAMILY }; - // construction/destruction + // construction hmcs40_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, int family, u16 polarity, int stack_levels, int pcwidth, int prgwidth, address_map_constructor program, int datawidth, address_map_constructor data); - // device-level overrides - virtual void device_start() override; - virtual void device_reset() override; + // device_t implementation + virtual void device_start() override ATTR_COLD; + virtual void device_reset() override ATTR_COLD; - // device_execute_interface overrides - virtual u64 execute_clocks_to_cycles(u64 clocks) const override { return (clocks + 4 - 1) / 4; } // 4 cycles per machine cycle - virtual u64 execute_cycles_to_clocks(u64 cycles) const override { return (cycles * 4); } // " - virtual u32 execute_min_cycles() const override { return 1; } - virtual u32 execute_max_cycles() const override { return 2; } - virtual u32 execute_input_lines() const override { return 2+1; } // 3rd one is internal + // device_execute_interface implementation + virtual u64 execute_clocks_to_cycles(u64 clocks) const noexcept override { return (clocks + 4 - 1) / 4; } // 4 cycles per machine cycle + virtual u64 execute_cycles_to_clocks(u64 cycles) const noexcept override { return (cycles * 4); } // " + virtual u32 execute_min_cycles() const noexcept override { return 1; } + virtual u32 execute_max_cycles() const noexcept override { return 2+1; } // max 2 + interrupt virtual void execute_set_input(int line, int state) override; virtual void execute_run() override; - // device_memory_interface overrides + // device_memory_interface implementation virtual space_config_vector memory_space_config() const override; - // device_disasm_interface overrides + // device_disasm_interface implementation virtual std::unique_ptr<util::disasm_interface> create_disassembler() override; virtual void state_string_export(const device_state_entry &entry, std::string &str) const override; - // memorymaps - void program_1k(address_map &map); - void program_2k(address_map &map); - void data_160x4(address_map &map); - void data_80x4(address_map &map); + // memory maps + void program_1k(address_map &map) ATTR_COLD; + void program_2k(address_map &map) ATTR_COLD; + void data_80x4(address_map &map) ATTR_COLD; + void data_160x4(address_map &map) ATTR_COLD; + void data_256x4(address_map &map) ATTR_COLD; address_space_config m_program_config; address_space_config m_data_config; address_space *m_program; address_space *m_data; - int m_pcwidth; // Program Counter bit-width - int m_prgwidth; - int m_datawidth; + int m_icount; + int m_state_count; + + const int m_pcwidth; // program counter bit-width + const int m_prgwidth; + const int m_datawidth; + const int m_family; // MCU family (42-47) + const u16 m_polarity; // i/o polarity (pmos vs cmos) + const int m_stack_levels; // number of callstack levels int m_pcmask; int m_prgmask; int m_datamask; - int m_family; // MCU family (42-47) - u16 m_polarity; // i/o polarity (pmos vs cmos) - int m_stack_levels; // number of callstack levels - u16 m_stack[4]; // max 4 - u16 m_op; // current opcode + + u16 m_stack[4]; // max 4 + u16 m_op; // current opcode u16 m_prev_op; - u8 m_i; // 4-bit immediate opcode param - int m_eint_line; // which input_line caused an interrupt - emu_timer *m_timer; - int m_halt; // internal HLT state - attotime m_timer_halted_remain; - int m_icount; + u8 m_i; // 4-bit immediate opcode param + int m_eint_line; // which input_line caused an interrupt + int m_halt; // internal HLT state + u8 m_prescaler; // internal timer prescaler + bool m_block_int; // block interrupt on next cycle - u16 m_pc; // Program Counter + u16 m_pc; // program counter u16 m_prev_pc; - u8 m_page; // LPU prepared page - u8 m_a; // 4-bit Accumulator - u8 m_b; // 4-bit B register - u8 m_x; // 1/3/4-bit X register - u8 m_spx; // 1/3/4-bit SPX register - u8 m_y; // 4-bit Y register - u8 m_spy; // 4-bit SPY register - u8 m_s; // Status F/F (F/F = flip-flop) - u8 m_c; // Carry F/F - u8 m_tc; // Timer/Counter - u8 m_cf; // CF F/F (timer mode or counter mode) - u8 m_ie; // I/E(Interrupt Enable) F/F - u8 m_iri; // external interrupt pending I/RI F/F - u8 m_irt; // timer interrupt pending I/RT F/F - u8 m_if[2]; // external interrupt mask IF0,1 F/F - u8 m_tf; // timer interrupt mask TF F/F - u8 m_int[2]; // INT0/1 pins state - u8 m_r[8]; // R outputs state - u16 m_d; // D pins state - - // i/o handlers - devcb_read8 m_read_r[8]; - devcb_write8 m_write_r[8]; + u8 m_pc_upper; // LPU prepared upper bits of PC + u8 m_a; // 4-bit accumulator + u8 m_b; // 4-bit B register + u8 m_x; // 1/3/4-bit X register + u8 m_spx; // 1/3/4-bit SPX register + u8 m_y; // 4-bit Y register + u8 m_spy; // 4-bit SPY register + u8 m_s; // status F/F (F/F = flip-flop) + u8 m_c; // carry F/F + + u8 m_tc; // timer/counter + u8 m_cf; // CF F/F (timer mode or counter mode) + u8 m_ie; // I/E (interrupt enable) F/F + u8 m_iri; // external interrupt pending I/RI F/F + u8 m_irt; // timer interrupt pending I/RT F/F + u8 m_if[2]; // external interrupt mask IF0,1 F/F + u8 m_tf; // timer interrupt mask TF F/F + u8 m_int[2]; // INT0/1 pins state + u8 m_r[8]; // R outputs state + u16 m_d; // D pins state + + // I/O handlers + devcb_read8::array<8> m_read_r; + devcb_write8::array<8> m_write_r; devcb_read16 m_read_d; devcb_write16 m_write_d; // misc internal helpers void increment_pc(); + void cycle(); u8 ram_r(); void ram_w(u8 data); void pop_stack(); void push_stack(); - virtual u8 read_r(int index); - virtual void write_r(int index, u8 data); - virtual int read_d(int index); - virtual void write_d(int index, int state); + virtual void reset_io(); + virtual u8 read_r(u8 index); + virtual void write_r(u8 index, u8 data); + virtual int read_d(u8 index); + virtual void write_d(u8 index, int state); - void reset_prescaler(); - TIMER_CALLBACK_MEMBER( simple_timer_cb ); - void increment_tc(); - void do_interrupt(); + void take_interrupt(); + void clock_timer(); + void clock_prescaler(); // opcode handlers void op_illegal(); @@ -304,9 +311,9 @@ protected: hmcs43_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u16 polarity); // overrides - virtual u8 read_r(int index) override; - virtual void write_r(int index, u8 data) override; - virtual int read_d(int index) override; + virtual u8 read_r(u8 index) override; + virtual void write_r(u8 index, u8 data) override; + virtual int read_d(u8 index) override; }; class hd38750_device : public hmcs43_cpu_device @@ -340,8 +347,8 @@ protected: hmcs44_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u16 polarity); // overrides - virtual u8 read_r(int index) override; - virtual void write_r(int index, u8 data) override; + virtual u8 read_r(u8 index) override; + virtual void write_r(u8 index, u8 data) override; }; class hd38800_device : public hmcs44_cpu_device @@ -375,8 +382,8 @@ protected: hmcs45_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u16 polarity); // overrides - virtual u8 read_r(int index) override; - virtual void write_r(int index, u8 data) override; + virtual u8 read_r(u8 index) override; + virtual void write_r(u8 index, u8 data) override; }; class hd38820_device : public hmcs45_cpu_device @@ -404,6 +411,56 @@ public: }; +class hmcs46_cpu_device : public hmcs40_cpu_device +{ +protected: + hmcs46_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u16 polarity); + + // overrides + virtual u8 read_r(u8 index) override; + virtual void write_r(u8 index, u8 data) override; +}; + +class hd44840_device : public hmcs46_cpu_device +{ +public: + hd44840_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + +class hd44848_device : public hmcs46_cpu_device +{ +public: + hd44848_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + + +class hmcs47_cpu_device : public hmcs40_cpu_device +{ +protected: + hmcs47_cpu_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u16 polarity); + + // overrides + virtual u8 read_r(u8 index) override; +}; + +class hd38870_device : public hmcs47_cpu_device +{ +public: + hd38870_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + +class hd44860_device : public hmcs47_cpu_device +{ +public: + hd44860_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + +class hd44868_device : public hmcs47_cpu_device +{ +public: + hd44868_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); +}; + DECLARE_DEVICE_TYPE(HD38750, hd38750_device) DECLARE_DEVICE_TYPE(HD38755, hd38755_device) @@ -420,4 +477,12 @@ DECLARE_DEVICE_TYPE(HD38825, hd38825_device) DECLARE_DEVICE_TYPE(HD44820, hd44820_device) DECLARE_DEVICE_TYPE(HD44828, hd44828_device) +DECLARE_DEVICE_TYPE(HD44840, hd44840_device) +DECLARE_DEVICE_TYPE(HD44848, hd44848_device) + +DECLARE_DEVICE_TYPE(HD38870, hd38870_device) +DECLARE_DEVICE_TYPE(HD44860, hd44860_device) +DECLARE_DEVICE_TYPE(HD44868, hd44868_device) + + #endif // MAME_CPU_HMCS40_HMCS40_H |