www.pudn.com > ncdzsrc.rar > m68000.h

/*************************************************************************** 
 
	m68000.h 
 
	M68000 CPU インターフェイス用ヘッダ	(ASM/C共用) 
 
***************************************************************************/ 
 
#ifndef M68000__HEADER 
#define M68000__HEADER 
 
#include "osd_cpu.h" 
 
enum 
{ 
	/* NOTE: M68K_SP fetches the current SP, be it USP, ISP, or MSP */ 
	M68K_PC=1, M68K_SP, M68K_ISP, M68K_USP, M68K_MSP, M68K_SR, M68K_VBR, 
	M68K_SFC, M68K_DFC, M68K_CACR, M68K_CAAR, M68K_PREF_ADDR, M68K_PREF_DATA, 
	M68K_D0, M68K_D1, M68K_D2, M68K_D3, M68K_D4, M68K_D5, M68K_D6, M68K_D7, 
	M68K_A0, M68K_A1, M68K_A2, M68K_A3, M68K_A4, M68K_A5, M68K_A6, M68K_A7 
}; 
 
extern int m68k_ICount; 
 
/* Redirect memory calls */ 
 
struct m68k_memory_interface 
{ 
	offs_t		opcode_xor;						// Address Calculation 
	UINT8		(*read8)(offs_t);				// Normal read 8 bit 
	UINT16		(*read16)(offs_t);				// Normal read 16 bit 
	UINT32		(*read32)(offs_t);				// Normal read 32 bit 
	void		(*write8)(offs_t, UINT8);		// Write 8 bit 
	void		(*write16)(offs_t, UINT16);		// Write 16 bit 
	void		(*write32)(offs_t, UINT32);		// Write 32 bit 
	void		(*changepc)(offs_t);			// Change PC routine 
 
    // For Encrypted Stuff 
 
	UINT8		(*read8pc)(offs_t);				// PC Relative read 8 bit 
	UINT16		(*read16pc)(offs_t);			// PC Relative read 16 bit 
	UINT32		(*read32pc)(offs_t);			// PC Relative read 32 bit 
 
	UINT16		(*read16d)(offs_t);				// Direct read 16 bit 
	UINT32		(*read32d)(offs_t);				// Direct read 32 bit 
}; 
 
/* The MAME API for MC68000 */ 
 
#define MC68000_INT_NONE 0 
#define MC68000_IRQ_1    1 
#define MC68000_IRQ_2    2 
#define MC68000_IRQ_3    3 
#define MC68000_IRQ_4    4 
#define MC68000_IRQ_5    5 
#define MC68000_IRQ_6    6 
#define MC68000_IRQ_7    7 
 
#define MC68000_INT_ACK_AUTOVECTOR    -1 
#define MC68000_INT_ACK_SPURIOUS      -2 
 
#define m68000_ICount  m68k_ICount 
 
#ifdef A68K0 
extern const struct m68k_memory_interface a68k_memory_intf; 
 
#define m68k_read_memory_8(address)          (*a68k_memory_intf.read8)(address) 
#define m68k_read_memory_16(address)         (*a68k_memory_intf.read16)(address) 
#define m68k_read_memory_32(address)         (*a68k_memory_intf.read32)(address) 
 
#define m68k_write_memory_8(address, value)  (*a68k_memory_intf.write8)(address, value) 
#define m68k_write_memory_16(address, value) (*a68k_memory_intf.write16)(address, value) 
#define m68k_write_memory_32(address, value) (*a68k_memory_intf.write32)(address, value) 
#endif 
 
extern void m68000_init(void); 
extern void m68000_reset(int param); 
extern void m68000_exit(void); 
extern int  m68000_execute(int cycles); 
extern void m68000_set_irq_line(int irqline, int state); 
extern unsigned m68000_get_reg(int regnum); 
extern void m68000_set_reg(int regnum, unsigned value); 
extern void m68000_set_irq_callback(int (*callback)(int irqline)); 
void m68000_save_context(void); 
void m68000_restore_context(void); 
 
#if (M68K_DEBUG == 1) 
extern unsigned m68000_dasm(char *buffer, unsigned pc); 
#endif 
 
#ifndef A68K0 
// C Core header 
#include "m68kncdz.h" 
#endif 
 
#endif /* M68000__HEADER */