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mn10200.c: Modernized cpu core (nw)

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This commit is contained in:
Wilbert Pol 2013-08-29 19:57:57 +00:00
parent 1502fc22a2
commit bafb7b572e
2 changed files with 1029 additions and 915 deletions
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1827
src/emu/cpu/mn10200/mn10200.c
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117
src/emu/cpu/mn10200/mn10200.h
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@ -39,14 +39,125 @@ enum
enum enum
{ {
MN10200_IRQ0, MN10200_IRQ0 = 0,
MN10200_IRQ1, MN10200_IRQ1,
MN10200_IRQ2, MN10200_IRQ2,
MN10200_IRQ3 MN10200_IRQ3
}; };
DECLARE_LEGACY_CPU_DEVICE(MN10200, mn10200);
CPU_DISASSEMBLE( mn10200 ); extern const device_type MN10200;
#define MN10200_NUM_PRESCALERS (2)
#define MN10200_NUM_TIMERS_8BIT (10)
#define MN10200_NUM_IRQ_GROUPS (31)
class mn10200_device : public cpu_device
{
public:
// construction/destruction
mn10200_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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 8; }
virtual UINT32 execute_input_lines() const { return 4; }
virtual void execute_run();
virtual void execute_set_input(int inputnum, int state);
// 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_IO) ? &m_io_config : NULL );
}
// device_state_interface overrides
void state_string_export(const device_state_entry &entry, astring &string);
// device_disasm_interface overrides
virtual UINT32 disasm_min_opcode_bytes() const { return 1; }
virtual UINT32 disasm_max_opcode_bytes() const { return 4; }
virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options);
private:
address_space_config m_program_config;
address_space_config m_io_config;
// The UINT32s are really UINT24
UINT32 m_pc;
UINT32 m_d[4];
UINT32 m_a[4];
UINT8 m_nmicr;
UINT8 m_iagr;
UINT8 m_icrl[MN10200_NUM_IRQ_GROUPS];
UINT8 m_icrh[MN10200_NUM_IRQ_GROUPS];
UINT16 m_psw;
UINT16 m_mdr;
struct {
UINT8 mode;
UINT8 base;
UINT8 cur;
} m_simple_timer[MN10200_NUM_TIMERS_8BIT];
emu_timer *m_timer_timers[MN10200_NUM_TIMERS_8BIT];
struct {
UINT8 cycles;
UINT8 mode;
} m_prescaler[MN10200_NUM_PRESCALERS];
struct {
UINT32 adr;
UINT32 count;
UINT16 iadr;
UINT8 ctrll;
UINT8 ctrlh;
UINT8 irq;
} m_dma[8];
struct {
UINT8 ctrll;
UINT8 ctrlh;
UINT8 buf;
} m_serial[2];
UINT8 m_ddr[8];
int m_cycles;
address_space *m_program;
address_space *m_io;
UINT8 mn102_read_byte(UINT32 address);
UINT16 mn102_read_word(UINT32 address);
void mn102_write_byte(UINT32 address, UINT8 data);
void mn102_write_word(UINT32 address, UINT16 data);
INT32 r24u(offs_t adr);
void w24(offs_t adr, UINT32 val);
void mn102_change_pc(UINT32 pc);
void mn102_take_irq(int level, int group);
void refresh_timer(int tmr);
void timer_tick_simple(int tmr);
TIMER_CALLBACK_MEMBER( simple_timer_cb );
void unemul();
UINT32 do_add(UINT32 a, UINT32 b);
UINT32 do_addc(UINT32 a, UINT32 b);
UINT32 do_sub(UINT32 a, UINT32 b);
UINT32 do_subc(UINT32 a, UINT32 b);
void test_nz16(UINT16 v);
void do_jsr(UINT32 to, UINT32 ret);
void mn10200_w(UINT32 adr, UINT32 data, int type);
UINT32 mn10200_r(UINT32 adr, int type);
};
#endif #endif