--- SheepShaver/src/include/cpu_emulation.h 2003/09/28 21:20:36 1.3 +++ SheepShaver/src/include/cpu_emulation.h 2003/12/04 17:26:38 1.7 @@ -27,38 +27,63 @@ */ // Constants -const uint32 ROM_BASE = 0x40800000; // Base address of ROM -const uint32 ROM_SIZE = 0x00400000; // Size of ROM file -const uint32 DR_CACHE_BASE = 0x69000000; // Address of DR cache -const uint32 DR_CACHE_SIZE = 0x80000; // Size of DR Cache +const uintptr ROM_BASE = 0x40800000; // Base address of ROM +const uint32 ROM_SIZE = 0x400000; // Size of ROM file +const uint32 ROM_AREA_SIZE = 0x500000; // Size of ROM area +const uintptr ROM_END = ROM_BASE + ROM_SIZE; // End of ROM +const uintptr DR_CACHE_BASE = 0x69000000; // Address of DR cache +const uint32 DR_CACHE_SIZE = 0x80000; // Size of DR Cache + +const uintptr KERNEL_DATA_BASE = 0x68ffe000; // Address of Kernel Data +const uintptr KERNEL_DATA2_BASE = 0x5fffe000; // Alternate address of Kernel Data +const uint32 KERNEL_AREA_SIZE = 0x2000; // Size of Kernel Data area + +// MacOS 68k Emulator Data +struct EmulatorData { + uint32 v[0x400]; +}; + +// MacOS Kernel Data +struct KernelData { + uint32 v[0x400]; + EmulatorData ed; +}; // RAM and ROM pointers (allocated and set by main_*.cpp) extern uint32 RAMBase; // Base address of Mac RAM extern uint32 RAMSize; // Size address of Mac RAM // Mac memory access functions +#if EMULATED_PPC +#include "cpu/vm.hpp" +static inline uint32 ReadMacInt8(uint32 addr) {return vm_read_memory_1(addr);} +static inline void WriteMacInt8(uint32 addr, uint32 v) {vm_write_memory_1(addr, v);} +static inline uint32 ReadMacInt16(uint32 addr) {return vm_read_memory_2(addr);} +static inline void WriteMacInt16(uint32 addr, uint32 v) {vm_write_memory_2(addr, v);} +static inline uint32 ReadMacInt32(uint32 addr) {return vm_read_memory_4(addr);} +static inline void WriteMacInt32(uint32 addr, uint32 v) {vm_write_memory_4(addr, v);} +static inline uint64 ReadMacInt64(uint32 addr) {return vm_read_memory_8(addr);} +static inline void WriteMacInt64(uint32 addr, uint64 v) {vm_write_memory_8(addr, v);} +static inline uint8 *Mac2HostAddr(uint32 addr) {return vm_do_get_real_address(addr);} +static inline void *Mac_memset(uint32 addr, int c, size_t n) {return vm_memset(addr, c, n);} +static inline void *Mac2Host_memcpy(void *dest, uint32 src, size_t n) {return vm_memcpy(dest, src, n);} +static inline void *Host2Mac_memcpy(uint32 dest, const void *src, size_t n) {return vm_memcpy(dest, src, n);} +static inline void *Mac2Mac_memcpy(uint32 dest, uint32 src, size_t n) {return vm_memcpy(dest, src, n);} +#else static inline uint32 ReadMacInt8(uint32 addr) {return *(uint8 *)addr;} static inline void WriteMacInt8(uint32 addr, uint32 b) {*(uint8 *)addr = b;} -#ifdef __i386__ -static inline uint32 ReadMacInt16(uint32 addr) {uint32 retval; __asm__ ("movzwl %w1,%k0\n\tshll $16,%k0\n\tbswapl %k0\n" : "=&r" (retval) : "m" (*(uint16 *)addr) : "cc"); return retval;} -static inline uint32 ReadMacInt32(uint32 addr) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*(uint32 *)addr) : "cc"); return retval;} -static inline uint64 ReadMacInt64(uint32 addr) {return ((uint64)ReadMacInt32(addr) << 32) | ReadMacInt32(addr + 4);} -static inline void WriteMacInt16(uint32 addr, uint32 w) {__asm__ ("bswapl %0" : "=&r" (w) : "0" (w << 16) : "cc"); *(uint16 *)addr = w;} -static inline void WriteMacInt32(uint32 addr, uint32 l) {__asm__ ("bswap %0" : "=r" (l) : "0" (l) : "cc"); *(uint32 *)addr = l;} -static inline void WriteMacInt64(uint32 addr, uint64 ll) {WriteMacInt32(addr, ll >> 32); WriteMacInt32(addr, ll);} -#else static inline uint32 ReadMacInt16(uint32 addr) {return *(uint16 *)addr;} static inline uint32 ReadMacInt32(uint32 addr) {return *(uint32 *)addr;} static inline uint64 ReadMacInt64(uint32 addr) {return *(uint64 *)addr;} static inline void WriteMacInt16(uint32 addr, uint32 w) {*(uint16 *)addr = w;} static inline void WriteMacInt32(uint32 addr, uint32 l) {*(uint32 *)addr = l;} static inline void WriteMacInt64(uint32 addr, uint64 ll) {*(uint64 *)addr = ll;} -#endif static inline uint8 *Mac2HostAddr(uint32 addr) {return (uint8 *)addr;} static inline void *Mac_memset(uint32 addr, int c, size_t n) {return memset(Mac2HostAddr(addr), c, n);} static inline void *Mac2Host_memcpy(void *dest, uint32 src, size_t n) {return memcpy(dest, Mac2HostAddr(src), n);} static inline void *Host2Mac_memcpy(uint32 dest, const void *src, size_t n) {return memcpy(Mac2HostAddr(dest), src, n);} static inline void *Mac2Mac_memcpy(uint32 dest, uint32 src, size_t n) {return memcpy(Mac2HostAddr(dest), Mac2HostAddr(src), n);} +#endif /* @@ -69,6 +94,7 @@ struct M68kRegisters; extern void Execute68k(uint32, M68kRegisters *r); // Execute 68k subroutine from EMUL_OP routine, must be ended with RTS extern void Execute68kTrap(uint16 trap, M68kRegisters *r); // Execute 68k A-Trap from EMUL_OP routine #if EMULATED_PPC +extern void FlushCodeCache(uintptr start, uintptr end); // Invalidate emulator caches extern void ExecuteNative(int selector); // Execute native code from EMUL_OP routine (real mode switch) #else extern void ExecutePPC(void (*func)(void)); // Execute PPC code from EMUL_OP routine (real mode switch)