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Annotation of hatari/src/includes/decode.h, revision 1.1.1.4

1.1       root        1: /*
                      2:   Hatari
                      3: */
                      4: 
1.1.1.3   root        5: #ifndef HATARI_DECODE_H
                      6: #define HATARI_DECODE_H
1.1       root        7: 
1.1.1.3   root        8: #include "sound.h"
1.1       root        9: 
                     10: #include "sysdeps.h"
1.1.1.4 ! root       11: #include "maccess.h"
1.1       root       12: #include "memory.h"
                     13: #include "newcpu.h"
1.1.1.4 ! root       14: 
1.1       root       15: #define Regs regs.regs       /* Ouah - uggly hack - FIXME! */
                     16: #define SR regs.sr
                     17: #define PC regs.pc
                     18: 
                     19: 
1.1.1.3   root       20: #define PENDING_INTERRUPT_FLAG_MFP      0x0001    /* 'PendingInterruptFlag' masks */
                     21: #define PENDING_INTERRUPT_FLAG_TRACE    0x0002
                     22: #define CLEAR_PENDING_INTERRUPT_FLAG_MFP   0xfffe
                     23: #define CLEAR_PENDING_INTERRUPT_FLAG_TRACE 0xfffd
                     24: 
                     25: 
                     26: extern  unsigned char STRam[16*1024*1024];
                     27: extern  short int PendingInterruptFlag;
                     28: extern  void *PendingInterruptFunction;
                     29: extern  short int PendingInterruptCount;
                     30: extern  unsigned long STRamEnd;
                     31: extern  unsigned long STRamEnd_BusErr;
                     32: extern  unsigned long ExceptionVector;
                     33: extern  unsigned long BusAddressLocation;
                     34: 
1.1       root       35: 
                     36: /*-----------------------------------------------------------------------*/
1.1.1.3   root       37: /* Offset ST address to PC pointer: */
                     38: #define STRAM_ADDR(Var)  ((unsigned long)STRam+((unsigned long)Var&0x00ffffff))
                     39: 
1.1       root       40: 
                     41: /*-----------------------------------------------------------------------*/
                     42: /* Set clock times for each instruction, see '68000 timing' pages for details */
                     43: /* NOTE All times are rounded up to nearest 4 cycles */
                     44: #define  ROUND_CYCLES_TO4(var)  (((int)(var)+3)&0xfffffffc)
                     45: 
                     46: static inline void ADD_CYCLES(op,r,w)
                     47: {
1.1.1.3   root       48:   PendingInterruptCount-= (op+3)&0xfffffffc;
                     49:   SoundCycles += (op+3)&0xfffffffc;
1.1       root       50: }
                     51: 
                     52: 
1.1.1.3   root       53: #endif   /* HATARI_DECODE_H */

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