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Diffstat (limited to 'src/emu/cpu/ucom4/ucom4.h')
-rw-r--r-- | src/emu/cpu/ucom4/ucom4.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/emu/cpu/ucom4/ucom4.h b/src/emu/cpu/ucom4/ucom4.h new file mode 100644 index 00000000000..033d4dd6956 --- /dev/null +++ b/src/emu/cpu/ucom4/ucom4.h @@ -0,0 +1,175 @@ +// license:BSD-3-Clause +// copyright-holders:hap +/* + + NEC uCOM-4 MCU family cores + +*/ + +#ifndef _UCOM4_H_ +#define _UCOM4_H_ + +#include "emu.h" + + +// I/O ports setup +#define MCFG_UCOM4_READ_A_CB(_devcb) \ + ucom4_cpu_device::set_read_a_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_READ_B_CB(_devcb) \ + ucom4_cpu_device::set_read_b_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_READ_C_CB(_devcb) \ + ucom4_cpu_device::set_read_c_callback(*device, DEVCB_##_devcb); +#define MCFG_UCOM4_WRITE_C_CB(_devcb) \ + ucom4_cpu_device::set_write_c_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_READ_D_CB(_devcb) \ + ucom4_cpu_device::set_read_d_callback(*device, DEVCB_##_devcb); +#define MCFG_UCOM4_WRITE_D_CB(_devcb) \ + ucom4_cpu_device::set_write_d_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_WRITE_E_CB(_devcb) \ + ucom4_cpu_device::set_write_e_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_WRITE_F_CB(_devcb) \ + ucom4_cpu_device::set_write_f_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_WRITE_G_CB(_devcb) \ + ucom4_cpu_device::set_write_g_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_WRITE_H_CB(_devcb) \ + ucom4_cpu_device::set_write_h_callback(*device, DEVCB_##_devcb); + +#define MCFG_UCOM4_WRITE_I_CB(_devcb) \ + ucom4_cpu_device::set_write_i_callback(*device, DEVCB_##_devcb); + + + +class ucom4_cpu_device : public cpu_device +{ +public: + // construction/destruction + ucom4_cpu_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, int stack_levels, int prgwidth, address_map_constructor program, int datawidth, address_map_constructor data, const char *shortname, const char *source) + : cpu_device(mconfig, type, name, tag, owner, clock, shortname, source) + , m_program_config("program", ENDIANNESS_BIG, 8, prgwidth, 0, program) + , m_data_config("data", ENDIANNESS_BIG, 8, datawidth, 0, data) + , m_prgwidth(prgwidth) + , m_datawidth(datawidth) + , m_stack_levels(stack_levels) + , m_read_a(*this) + , m_read_b(*this) + , m_read_c(*this) + , m_read_d(*this) + , m_write_c(*this) + , m_write_d(*this) + , m_write_e(*this) + , m_write_f(*this) + , m_write_g(*this) + , m_write_h(*this) + , m_write_i(*this) + { } + + // static configuration helpers + template<class _Object> static devcb_base &set_read_a_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_read_a.set_callback(object); } + template<class _Object> static devcb_base &set_read_b_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_read_b.set_callback(object); } + template<class _Object> static devcb_base &set_read_c_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_read_c.set_callback(object); } + template<class _Object> static devcb_base &set_read_d_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_read_d.set_callback(object); } + + template<class _Object> static devcb_base &set_write_c_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_c.set_callback(object); } + template<class _Object> static devcb_base &set_write_d_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_d.set_callback(object); } + template<class _Object> static devcb_base &set_write_e_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_e.set_callback(object); } + template<class _Object> static devcb_base &set_write_f_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_f.set_callback(object); } + template<class _Object> static devcb_base &set_write_g_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_g.set_callback(object); } + template<class _Object> static devcb_base &set_write_h_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_h.set_callback(object); } + template<class _Object> static devcb_base &set_write_i_callback(device_t &device, _Object object) { return downcast<ucom4_cpu_device &>(device).m_write_i.set_callback(object); } + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // device_execute_interface overrides + virtual UINT32 execute_min_cycles() const { return 1; } + virtual UINT32 execute_max_cycles() const { return 2; } + virtual UINT32 execute_input_lines() const { return 1; } + virtual void execute_run(); + + // device_memory_interface overrides + virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const { return(spacenum == AS_PROGRAM) ? &m_program_config :((spacenum == AS_DATA) ? &m_data_config : NULL); } + + // device_disasm_interface overrides + virtual UINT32 disasm_min_opcode_bytes() const { return 1; } + virtual UINT32 disasm_max_opcode_bytes() const { return 2; } + virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options); + void state_string_export(const device_state_entry &entry, astring &string); + + address_space_config m_program_config; + address_space_config m_data_config; + address_space *m_program; + address_space *m_data; + + int m_prgwidth; + int m_datawidth; + int m_prgmask; + int m_datamask; + int m_stack_levels; // number of callstack levels + UINT16 m_stack[3]; // max 3 + + UINT8 m_op; + UINT8 m_prev_op; + int m_icount; + + UINT16 m_pc; // program counter + UINT8 m_acc; // 4-bit accumulator + UINT8 m_dpl; // 4-bit data pointer low (RAM x) + UINT8 m_dph; // 1/2/3-bit data pointer high (RAM y) + UINT8 m_carry_f; // carry flag + UINT8 m_timer_f; // timer out flag + UINT8 m_int_f; // interrupt flag + UINT8 m_inte_f; // interrupt enable flag + + // i/o handlers + devcb_read8 m_read_a; + devcb_read8 m_read_b; + devcb_read8 m_read_c; + devcb_read8 m_read_d; + + devcb_write8 m_write_c; + devcb_write8 m_write_d; + devcb_write8 m_write_e; + devcb_write8 m_write_f; + devcb_write8 m_write_g; + devcb_write8 m_write_h; + devcb_write8 m_write_i; +}; + + +class upd553_cpu_device : public ucom4_cpu_device +{ +public: + upd553_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); +}; + + +class upd650_cpu_device : public ucom4_cpu_device +{ +public: + upd650_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); +}; + + +class upd552_cpu_device : public ucom4_cpu_device +{ +public: + upd552_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); +}; + + + +extern const device_type NEC_D553; +extern const device_type NEC_D650; +extern const device_type NEC_D552; + + +#endif /* _UCOM4_H_ */ |