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1.1.1.3 ! root 1: /* 1.1 root 2: * UAE - The Un*x Amiga Emulator 1.1.1.3 ! root 3: * 1.1 root 4: * memory management 1.1.1.3 ! root 5: * 1.1 root 6: * Copyright 1995 Bernd Schmidt 7: */ 8: 1.1.1.3 ! root 9: /* Enabling this adds one additional native memory reference per 68k memory ! 10: * access, but saves one shift (on the x86). Enabling this is probably ! 11: * better for the cache. My favourite benchmark (PP2) doesn't show a ! 12: * difference, so I leave this enabled. */ ! 13: ! 14: #if 1 || defined SAVE_MEMORY ! 15: #define SAVE_MEMORY_BANKS ! 16: #endif ! 17: ! 18: typedef uae_u32 (*mem_get_func)(uaecptr) REGPARAM; ! 19: typedef void (*mem_put_func)(uaecptr, uae_u32) REGPARAM; ! 20: typedef uae_u8 *(*xlate_func)(uaecptr) REGPARAM; ! 21: typedef int (*check_func)(uaecptr, uae_u32) REGPARAM; 1.1.1.2 root 22: 23: extern char *address_space, *good_address_map; 1.1.1.3 ! root 24: extern uae_u8 *chipmemory; 1.1.1.2 root 25: 26: #undef DIRECT_MEMFUNCS_SUCCESSFUL 1.1.1.3 ! root 27: #include "osdep/memory.h" 1.1.1.2 root 28: #include "machdep/memory.h" 29: 30: #ifndef CAN_MAP_MEMORY 31: #undef USE_COMPILER 32: #endif 33: 34: #if defined(USE_COMPILER) && !defined(USE_MAPPED_MEMORY) 35: #define USE_MAPPED_MEMORY 36: #endif 37: 1.1 root 38: #define kickmem_size 0x080000 39: 1.1.1.3 ! root 40: #define chipmem_start 0x00000000 ! 41: #define bogomem_start 0x00C00000 ! 42: #define a3000mem_start 0x07000000 ! 43: #define kickmem_start 0x00F80000 1.1 root 44: 45: extern int ersatzkickfile; 46: 47: typedef struct { 48: /* These ones should be self-explanatory... */ 1.1.1.3 ! root 49: mem_get_func lget, wget, bget; 1.1.1.2 root 50: mem_put_func lput, wput, bput; 1.1.1.3 ! root 51: /* Use xlateaddr to translate an Amiga address to a uae_u8 * that can ! 52: * be used to address memory without calling the wget/wput functions. 1.1 root 53: * This doesn't work for all memory banks, so this function may call 54: * abort(). */ 55: xlate_func xlateaddr; 56: /* To prevent calls to abort(), use check before calling xlateaddr. 57: * It checks not only that the memory bank can do xlateaddr, but also 1.1.1.3 ! root 58: * that the pointer points to an area of at least the specified size. 1.1 root 59: * This is used for example to translate bitplane pointers in custom.c */ 60: check_func check; 61: } addrbank; 62: 1.1.1.3 ! root 63: extern uae_u8 filesysory[65536]; ! 64: 1.1 root 65: extern addrbank chipmem_bank; 66: extern addrbank kickmem_bank; 67: extern addrbank custom_bank; 68: extern addrbank clock_bank; 69: extern addrbank cia_bank; 70: extern addrbank rtarea_bank; 71: extern addrbank expamem_bank; 72: extern addrbank fastmem_bank; 1.1.1.3 ! root 73: extern addrbank gfxmem_bank; 1.1 root 74: 75: extern void rtarea_init (void); 1.1.1.2 root 76: extern void rtarea_setup (void); 1.1 root 77: extern void expamem_init (void); 78: extern void expamem_reset (void); 79: 1.1.1.3 ! root 80: extern uae_u32 z3fastmem_size, fastmem_size, chipmem_size, bogomem_size, a3000mem_size, gfxmem_size; ! 81: extern uae_u32 gfxmem_start; ! 82: extern uae_u8 *gfxmemory; ! 83: extern uae_u32 gfxmem_mask; ! 84: extern int address_space_24; 1.1 root 85: 86: /* Default memory access functions */ 87: 1.1.1.3 ! root 88: extern int default_check(uaecptr addr, uae_u32 size) REGPARAM; ! 89: extern uae_u8 *default_xlate(uaecptr addr) REGPARAM; 1.1 root 90: 1.1.1.3 ! root 91: #define bankindex(addr) (((uaecptr)(addr)) >> 16) 1.1 root 92: 1.1.1.3 ! root 93: #ifdef SAVE_MEMORY_BANKS ! 94: extern addrbank *mem_banks[65536]; ! 95: #define get_mem_bank(addr) (*mem_banks[bankindex(addr)]) ! 96: #define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = (b)) 1.1 root 97: #else 1.1.1.3 ! root 98: extern addrbank mem_banks[65536]; ! 99: #define get_mem_bank(addr) (mem_banks[bankindex(addr)]) ! 100: #define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = *(b)) 1.1 root 101: #endif 1.1.1.3 ! root 102: ! 103: extern void memory_init(void); 1.1 root 104: extern void map_banks(addrbank *bank, int first, int count); 1.1.1.2 root 105: 106: #ifndef NO_INLINE_MEMORY_ACCESS 107: 1.1.1.3 ! root 108: #define longget(addr) (call_mem_get_func(get_mem_bank(addr).lget, addr)) ! 109: #define wordget(addr) (call_mem_get_func(get_mem_bank(addr).wget, addr)) ! 110: #define byteget(addr) (call_mem_get_func(get_mem_bank(addr).bget, addr)) ! 111: #define longput(addr,l) (call_mem_put_func(get_mem_bank(addr).lput, addr, l)) ! 112: #define wordput(addr,w) (call_mem_put_func(get_mem_bank(addr).wput, addr, w)) ! 113: #define byteput(addr,b) (call_mem_put_func(get_mem_bank(addr).bput, addr, b)) 1.1.1.2 root 114: 115: #else 116: 1.1.1.3 ! root 117: extern uae_u32 alongget(uaecptr addr); ! 118: extern uae_u32 awordget(uaecptr addr); ! 119: extern uae_u32 longget(uaecptr addr); ! 120: extern uae_u32 wordget(uaecptr addr); ! 121: extern uae_u32 byteget(uaecptr addr); ! 122: extern void longput(uaecptr addr, uae_u32 l); ! 123: extern void wordput(uaecptr addr, uae_u32 w); ! 124: extern void byteput(uaecptr addr, uae_u32 b); 1.1.1.2 root 125: 126: #endif 127: 128: #ifndef MD_HAVE_MEM_1_FUNCS 129: 130: #define longget_1 longget 131: #define wordget_1 wordget 132: #define byteget_1 byteget 133: #define longput_1 longput 134: #define wordput_1 wordput 135: #define byteput_1 byteput 136: 137: #endif 138: 1.1.1.3 ! root 139: static __inline__ uae_u32 get_long(uaecptr addr) 1.1 root 140: { 1.1.1.3 ! root 141: return longget_1(addr); 1.1 root 142: } 1.1.1.3 ! root 143: static __inline__ uae_u32 get_word(uaecptr addr) 1.1 root 144: { 1.1.1.3 ! root 145: return wordget_1(addr); 1.1 root 146: } 1.1.1.3 ! root 147: static __inline__ uae_u32 get_byte(uaecptr addr) 1.1 root 148: { 1.1.1.3 ! root 149: return byteget_1(addr); 1.1 root 150: } 1.1.1.3 ! root 151: static __inline__ void put_long(uaecptr addr, uae_u32 l) 1.1 root 152: { 1.1.1.2 root 153: longput_1(addr, l); 1.1 root 154: } 1.1.1.3 ! root 155: static __inline__ void put_word(uaecptr addr, uae_u32 w) 1.1 root 156: { 1.1.1.2 root 157: wordput_1(addr, w); 1.1 root 158: } 1.1.1.3 ! root 159: static __inline__ void put_byte(uaecptr addr, uae_u32 b) 1.1 root 160: { 1.1.1.2 root 161: byteput_1(addr, b); 1.1 root 162: } 163: 1.1.1.3 ! root 164: static __inline__ uae_u8 *get_real_address(uaecptr addr) 1.1 root 165: { 1.1.1.3 ! root 166: return get_mem_bank(addr).xlateaddr(addr); 1.1 root 167: } 168: 1.1.1.3 ! root 169: static __inline__ int valid_address(uaecptr addr, uae_u32 size) 1.1 root 170: { 1.1.1.3 ! root 171: return get_mem_bank(addr).check(addr, size); 1.1 root 172: }
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