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arm.c: Modernized cpu core. (nw)

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This commit is contained in:
Wilbert Pol 2013-06-27 18:40:44 +00:00
parent 796f54597a
commit dd7c7243bf
2 changed files with 346 additions and 435 deletions
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696
src/emu/cpu/arm/arm.c
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File diff suppressed because it is too large Load Diff

85
src/emu/cpu/arm/arm.h
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@ -14,8 +14,6 @@
* PUBLIC FUNCTIONS
***************************************************************************************************/
DECLARE_LEGACY_CPU_DEVICE(ARM, arm);
DECLARE_LEGACY_CPU_DEVICE(ARM_BE, arm_be);
enum
{
@ -26,4 +24,87 @@ enum
ARM32_IR13, ARM32_IR14, ARM32_SR13, ARM32_SR14
};
class arm_cpu_device : public cpu_device
{
public:
// construction/destruction
arm_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
arm_cpu_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source, endianness_t endianness);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_execute_interface overrides
virtual UINT32 execute_min_cycles() const { return 3; }
virtual UINT32 execute_max_cycles() const { return 4; }
virtual UINT32 execute_input_lines() const { return 2; }
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 : 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 4; }
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);
address_space_config m_program_config;
int m_icount;
UINT32 m_sArmRegister[27];
UINT32 m_coproRegister[16];
UINT8 m_pendingIrq;
UINT8 m_pendingFiq;
address_space *m_program;
direct_read_data *m_direct;
endianness_t m_endian;
void cpu_write32( int addr, UINT32 data );
void cpu_write8( int addr, UINT8 data );
UINT32 cpu_read32( int addr );
UINT8 cpu_read8( int addr );
UINT32 GetRegister( int rIndex );
void SetRegister( int rIndex, UINT32 value );
UINT32 GetModeRegister( int mode, int rIndex );
void SetModeRegister( int mode, int rIndex, UINT32 value );
void HandleALU(UINT32 insn);
void HandleMul(UINT32 insn);
void HandleBranch(UINT32 insn);
void HandleMemSingle(UINT32 insn);
void HandleMemBlock(UINT32 insn);
void HandleCoPro(UINT32 insn);
UINT32 decodeShift(UINT32 insn, UINT32 *pCarry);
void arm_check_irq_state();
int loadInc(UINT32 pat, UINT32 rbv, UINT32 s);
int loadDec(UINT32 pat, UINT32 rbv, UINT32 s, UINT32* deferredR15, int* defer);
int storeInc(UINT32 pat, UINT32 rbv);
int storeDec(UINT32 pat, UINT32 rbv);
static UINT32 BCDToDecimal(UINT32 value);
static UINT32 DecimalToBCD(UINT32 value);
};
class arm_be_cpu_device : public arm_cpu_device
{
public:
// construction/destruction
arm_be_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
protected:
virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options);
};
extern const device_type ARM;
extern const device_type ARM_BE;
#endif /* __ARM_H__ */