src/m68000/cpuextra.h

   1 #ifndef __CPUEXTRA_H__
   2 #define __CPUEXTRA_H__
   3
   4 #include "sysdeps.h"
   5
   6 typedef unsigned long cpuop_func(uint32_t);
   7
   8 struct cputbl
   9 {
  10         cpuop_func * handler;
  11         int specific;
  12         uint16_t opcode;
  13 };
  14
  15 extern uint16_t last_op_for_exception_3;        /* Opcode of faulting instruction */
  16 extern uint32_t last_addr_for_exception_3;      /* PC at fault time */
  17 extern uint32_t last_fault_for_exception_3;     /* Address that generated the exception */
  18
  19 /* Family of the latest instruction executed (to check for pairing) */
  20 extern int OpcodeFamily;                        /* see instrmnem in readcpu.h */
  21
  22 /* How many cycles to add to the current instruction in case a "misaligned" bus access is made */
  23 /* (used when addressing mode is d8(an,ix)) */
  24 extern int BusCyclePenalty;
  25 extern int CurrentInstrCycles;
  26
  27 extern uint32_t get_disp_ea_000(uint32_t base, uint32_t dp);
  28 extern void MakeSR(void);
  29 extern void MakeFromSR(void);
  30 extern void Exception(int, uint32_t, int);
  31 extern int getDivu68kCycles(uint32_t dividend, uint16_t divisor);
  32 extern int getDivs68kCycles(int32_t dividend, int16_t divisor);
  33
  34 #endif  // __CPUEXTRA_H__