Shamusworld >> Repos - apple2/blob - src/mmu.h

   1 #ifndef __MMU_H__
   2 #define __MMU_H__
   3
   4 #include <stdint.h>
   5
   6 // Macros for function pointers
   7 #define READFUNC(x) uint8_t (* x)(uint16_t)
   8 #define WRITEFUNC(x) void (* x)(uint16_t, uint8_t)
   9
  10 struct SlotData
  11 {
  12         READFUNC(ioR);          // I/O read function
  13         WRITEFUNC(ioW);         // I/O write function
  14         READFUNC(pageR);        // Driver page read function
  15         WRITEFUNC(pageW);       // Driver page write function
  16         READFUNC(extraR);       // Driver 2K read function
  17         WRITEFUNC(extraW);      // Driver 2K write function
  18 };
  19
  20 void SetupAddressMap(void);
  21 void ResetMMUPointers(void);
  22 void InstallSlotHandler(uint8_t slot, SlotData *);
  23 uint8_t AppleReadMem(uint16_t);
  24 void AppleWriteMem(uint16_t, uint8_t);
  25 void SwitchLC(void);
  26 uint8_t ReadFloatingBus(uint16_t);
  27
  28 #endif  // __MMU_H__
  29