summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/cpu/hmcs40/hmcs40.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/cpu/hmcs40/hmcs40.h')
-rw-r--r--src/devices/cpu/hmcs40/hmcs40.h223
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