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/* |
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* cpu_emulation.h - Definitions for Basilisk II CPU emulation module (UAE 0.8.8 version) |
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* cpu_emulation.h - Definitions for Basilisk II CPU emulation module (UAE 0.8.10 version) |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* Basilisk II (C) 1997-2004 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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#ifndef CPU_EMULATION_H |
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#define CPU_EMULATION_H |
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#include <string.h> |
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/* |
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* Memory system |
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extern uint8 *ROMBaseHost; // ROM base (host address space) |
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extern uint32 ROMSize; // Size of ROM |
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#if !REAL_ADDRESSING |
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// If we are not using real addressing, the Mac frame buffer gets mapped to this location |
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// The memory must be allocated by VideoInit(). If multiple monitors are used, they must |
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// share the frame buffer |
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#if !REAL_ADDRESSING && !DIRECT_ADDRESSING |
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// If we are not using real or direct addressing, the Mac frame buffer gets |
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// mapped to this location. The memory must be allocated by VideoInit(). |
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// If multiple monitors are used, they must share the frame buffer |
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const uint32 MacFrameBaseMac = 0xa0000000; |
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extern uint8 *MacFrameBaseHost; // Frame buffer base (host address space) |
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extern uint32 MacFrameSize; // Size of frame buffer |
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extern int MacFrameLayout; // Frame buffer layout (see defines below) |
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#endif |
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extern int MacFrameLayout; // Frame buffer layout (see defines below) |
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// Possible frame buffer layouts |
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enum { |
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}; |
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// Mac memory access functions |
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#if REAL_ADDRESSING |
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static inline uint32 ReadMacInt32(uint32 addr) {return ntohl(*(uint32 *)addr);} |
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static inline uint32 ReadMacInt16(uint32 addr) {return ntohs(*(uint16 *)addr);} |
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static inline uint32 ReadMacInt8(uint32 addr) {return *(uint8 *)addr;} |
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static inline void WriteMacInt32(uint32 addr, uint32 l) {*(uint32 *)addr = htonl(l);} |
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static inline void WriteMacInt16(uint32 addr, uint32 w) {*(uint16 *)addr = htons(w);} |
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static inline void WriteMacInt8(uint32 addr, uint32 b) {*(uint8 *)addr = b;} |
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static inline uint8 *Mac2HostAddr(uint32 addr) {return (uint8 *)addr;} |
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#else |
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#include "memory.h" |
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static inline uint32 ReadMacInt32(uint32 addr) {return get_long(addr);} |
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static inline uint32 ReadMacInt16(uint32 addr) {return get_word(addr);} |
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static inline void WriteMacInt16(uint32 addr, uint32 w) {put_word(addr, w);} |
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static inline void WriteMacInt8(uint32 addr, uint32 b) {put_byte(addr, b);} |
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static inline uint8 *Mac2HostAddr(uint32 addr) {return get_real_address(addr);} |
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#endif |
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static inline uint32 Host2MacAddr(uint8 *addr) {return get_virtual_address(addr);} |
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static inline void *Mac_memset(uint32 addr, int c, size_t n) {return memset(Mac2HostAddr(addr), c, n);} |
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static inline void *Mac2Host_memcpy(void *dest, uint32 src, size_t n) {return memcpy(dest, Mac2HostAddr(src), n);} |
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static inline void *Host2Mac_memcpy(uint32 dest, const void *src, size_t n) {return memcpy(Mac2HostAddr(dest), src, n);} |
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// Initialization |
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extern bool Init680x0(void); // This routine may want to look at CPUType/FPUType to set up the apropriate emulation |
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extern void Exit680x0(void); |
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extern void InitFrameBufferMapping(void); |
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// 680x0 dynamic recompilation activation flag |
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#if USE_JIT |
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extern bool UseJIT; |
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#else |
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const bool UseJIT = false; |
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#endif |
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// 680x0 emulation functions |
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struct M68kRegisters; |
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// Interrupt functions |
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extern void TriggerInterrupt(void); // Trigger interrupt level 1 (InterruptFlag must be set first) |
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extern void TriggerNMI(void); // Trigger interrupt level 7 |
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#endif |
