![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to memory.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Previous NeXT emulator] / previous / src / cpu|
Return to memory.h CVS log | Up to [Previous NeXT emulator] / previous / src / cpu |
1.1 root 1: /*
2: * UAE - The Un*x Amiga Emulator
3: *
4: * memory management
5: *
6: * Copyright 1995 Bernd Schmidt
7: *
8: * Adaptation to Hatari by Thomas Huth
9: *
10: * This file is distributed under the GNU Public License, version 2 or at
11: * your option any later version. Read the file gpl.txt for details.
12: */
13:
14: #ifndef UAE_MEMORY_H
15: #define UAE_MEMORY_H
16:
17: #include "maccess.h"
18:
19: #ifdef JIT
20: extern int special_mem;
21: #define S_READ 1
22: #define S_WRITE 2
23:
24: extern uae_u8 *cache_alloc (int);
25: extern void cache_free (uae_u8*);
26: #endif
27:
28: #define call_mem_get_func(func, addr) ((*func)(addr))
29: #define call_mem_put_func(func, addr, v) ((*func)(addr, v))
30:
31: extern uae_u8 NEXTVideo[256*1024];
32:
1.1.1.2 root 33: extern uae_u8 NEXTColorVideo[2*1024*1024];
34:
1.1 root 35:
36: /* Enabling this adds one additional native memory reference per 68k memory
37: * access, but saves one shift (on the x86). Enabling this is probably
38: * better for the cache. My favourite benchmark (PP2) doesn't show a
39: * difference, so I leave this enabled. */
40: #if 1 || defined SAVE_MEMORY
41: #define SAVE_MEMORY_BANKS
42: #endif
43:
44: extern void memory_hardreset (void);
45:
46: typedef uae_u32 (*mem_get_func)(uaecptr) REGPARAM;
47: typedef void (*mem_put_func)(uaecptr, uae_u32) REGPARAM;
48: typedef uae_u8 *(*xlate_func)(uaecptr) REGPARAM;
49: typedef int (*check_func)(uaecptr, uae_u32) REGPARAM;
50:
51: extern char *address_space, *good_address_map;
52:
53: extern uae_u32 wait_cpu_cycle_read (uaecptr addr, int mode);
54: extern void wait_cpu_cycle_write (uaecptr addr, int mode, uae_u32 v);
55: extern uae_u32 wait_cpu_cycle_read_ce020 (uaecptr addr, int mode);
56: extern void wait_cpu_cycle_write_ce020 (uaecptr addr, int mode, uae_u32 v);
57:
58: enum { ABFLAG_UNK = 0, ABFLAG_RAM = 1, ABFLAG_ROM = 2, ABFLAG_ROMIN = 4, ABFLAG_IO = 8, ABFLAG_NONE = 16, ABFLAG_SAFE = 32 };
59: typedef struct {
60: /* These ones should be self-explanatory... */
61: mem_get_func lget, wget, bget;
62: mem_put_func lput, wput, bput;
63: mem_get_func lgeti, wgeti;
64: int flags;
65: } addrbank;
66:
67: #define CE_MEMBANK_FAST 0
68: #define CE_MEMBANK_CHIP 1
69: #define CE_MEMBANK_CIA 2
70: #define CE_MEMBANK_FAST16BIT 3
71: extern uae_u8 ce_banktype[65536], ce_cachable[65536];
72:
73:
74: #define bankindex(addr) (((uaecptr)(addr)) >> 16)
75:
76: #ifdef SAVE_MEMORY_BANKS
77: extern addrbank *mem_banks[65536];
78: #define get_mem_bank(addr) (*mem_banks[bankindex(addr)])
79: #define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = (b))
80: #else
81: extern addrbank mem_banks[65536];
82: #define get_mem_bank(addr) (mem_banks[bankindex(addr)])
83: #define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = *(b))
84: #endif
85:
1.1.1.2 root 86: extern const char* memory_init(int *membanks);
1.1 root 87: extern void memory_uninit (void);
88: extern void map_banks(addrbank *bank, int first, int count);
89:
90: #ifndef NO_INLINE_MEMORY_ACCESS
91:
92: #define longget(addr) (call_mem_get_func(get_mem_bank(addr).lget, addr))
93: #define wordget(addr) (call_mem_get_func(get_mem_bank(addr).wget, addr))
94: #define byteget(addr) (call_mem_get_func(get_mem_bank(addr).bget, addr))
95: #define longput(addr,l) (call_mem_put_func(get_mem_bank(addr).lput, addr, l))
96: #define wordput(addr,w) (call_mem_put_func(get_mem_bank(addr).wput, addr, w))
97: #define byteput(addr,b) (call_mem_put_func(get_mem_bank(addr).bput, addr, b))
98:
99: #else
100:
101: extern uae_u32 alongget(uaecptr addr);
102: extern uae_u32 awordget(uaecptr addr);
103: extern uae_u32 longget(uaecptr addr);
104: extern uae_u32 wordget(uaecptr addr);
105: extern uae_u32 byteget(uaecptr addr);
106: extern void longput(uaecptr addr, uae_u32 l);
107: extern void wordput(uaecptr addr, uae_u32 w);
108: extern void byteput(uaecptr addr, uae_u32 b);
109:
110: #endif
111:
112: #define longget(addr) (call_mem_get_func(get_mem_bank(addr).lget, addr))
113: #define wordget(addr) (call_mem_get_func(get_mem_bank(addr).wget, addr))
114: #define byteget(addr) (call_mem_get_func(get_mem_bank(addr).bget, addr))
115: #define longgeti(addr) (call_mem_get_func(get_mem_bank(addr).lgeti, addr))
116: #define wordgeti(addr) (call_mem_get_func(get_mem_bank(addr).wgeti, addr))
117: #define longput(addr,l) (call_mem_put_func(get_mem_bank(addr).lput, addr, l))
118: #define wordput(addr,w) (call_mem_put_func(get_mem_bank(addr).wput, addr, w))
119: #define byteput(addr,b) (call_mem_put_func(get_mem_bank(addr).bput, addr, b))
120:
121: static inline uae_u32 get_long(uaecptr addr)
122: {
123: return longget(addr);
124: }
125:
126: static inline uae_u32 get_word(uaecptr addr)
127: {
128: return wordget(addr);
129: }
130:
131: static inline uae_u32 get_byte(uaecptr addr)
132: {
133: return byteget(addr);
134: }
135:
136: static inline void put_long(uaecptr addr, uae_u32 l)
137: {
138: longput(addr, l);
139: }
140:
141: static inline void put_word(uaecptr addr, uae_u32 w)
142: {
143: wordput(addr, w);
144: }
145:
146: static inline void put_byte(uaecptr addr, uae_u32 b)
147: {
148: byteput(addr, b);
149: }
150:
151: static inline uae_u32 get_longi(uaecptr addr)
152: {
153: return longgeti (addr);
154: }
155:
156: static inline uae_u32 get_wordi(uaecptr addr)
157: {
158: return wordgeti (addr);
159: }
160:
161: #endif /* UAE_MEMORY_H */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.