src/uae_cpu/memory.h

 /*
  * UAE - The Un*x Amiga Emulator
  *
  * memory management
  *
  * Copyright 1995 Bernd Schmidt
  */

#ifndef UAE_MEMORY_H
#define UAE_MEMORY_H

#if !DIRECT_ADDRESSING && !REAL_ADDRESSING

/* Enabling this adds one additional native memory reference per 68k memory
 * access, but saves one shift (on the x86). Enabling this is probably
 * better for the cache. My favourite benchmark (PP2) doesn't show a
 * difference, so I leave this enabled. */

#if 1 || defined SAVE_MEMORY
#define SAVE_MEMORY_BANKS
#endif

typedef uae_u32 (REGPARAM2 *mem_get_func)(uaecptr) REGPARAM;
typedef void (REGPARAM2 *mem_put_func)(uaecptr, uae_u32) REGPARAM;
typedef uae_u8 *(REGPARAM2 *xlate_func)(uaecptr) REGPARAM;

#undef DIRECT_MEMFUNCS_SUCCESSFUL

#ifndef CAN_MAP_MEMORY
#undef USE_COMPILER
#endif

#if defined(USE_COMPILER) && !defined(USE_MAPPED_MEMORY)
#define USE_MAPPED_MEMORY
#endif

typedef struct {
    /* These ones should be self-explanatory... */
    mem_get_func lget, wget, bget;
    mem_put_func lput, wput, bput;
    /* Use xlateaddr to translate an Amiga address to a uae_u8 * that can
     * be used to address memory without calling the wget/wput functions.
     * This doesn't work for all memory banks, so this function may call
     * abort(). */
    xlate_func xlateaddr;
} addrbank;

extern uae_u8 filesysory[65536];

extern addrbank ram_bank;       // Mac RAM
extern addrbank rom_bank;       // Mac ROM
extern addrbank frame_bank;     // Frame buffer

/* Default memory access functions */

extern uae_u8 *REGPARAM2 default_xlate(uaecptr addr) REGPARAM;

#define bankindex(addr) (((uaecptr)(addr)) >> 16)

#ifdef SAVE_MEMORY_BANKS
extern addrbank *mem_banks[65536];
#define get_mem_bank(addr) (*mem_banks[bankindex(addr)])
#define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = (b))
#else
extern addrbank mem_banks[65536];
#define get_mem_bank(addr) (mem_banks[bankindex(addr)])
#define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = *(b))
#endif

extern void memory_init(void);
extern void map_banks(addrbank *bank, int first, int count);

#ifndef NO_INLINE_MEMORY_ACCESS

#define longget(addr) (call_mem_get_func(get_mem_bank(addr).lget, addr))
#define wordget(addr) (call_mem_get_func(get_mem_bank(addr).wget, addr))
#define byteget(addr) (call_mem_get_func(get_mem_bank(addr).bget, addr))
#define longput(addr,l) (call_mem_put_func(get_mem_bank(addr).lput, addr, l))
#define wordput(addr,w) (call_mem_put_func(get_mem_bank(addr).wput, addr, w))
#define byteput(addr,b) (call_mem_put_func(get_mem_bank(addr).bput, addr, b))

#else

extern uae_u32 longget(uaecptr addr);
extern uae_u32 wordget(uaecptr addr);
extern uae_u32 byteget(uaecptr addr);
extern void longput(uaecptr addr, uae_u32 l);
extern void wordput(uaecptr addr, uae_u32 w);
extern void byteput(uaecptr addr, uae_u32 b);

#endif

#ifndef MD_HAVE_MEM_1_FUNCS

#define longget_1 longget
#define wordget_1 wordget
#define byteget_1 byteget
#define longput_1 longput
#define wordput_1 wordput
#define byteput_1 byteput

#endif

#endif /* !DIRECT_ADDRESSING && !REAL_ADDRESSING */

#if REAL_ADDRESSING
const uintptr MEMBaseDiff = 0;
#endif
#if DIRECT_ADDRESSING
extern uintptr MEMBaseDiff;
#endif

#if REAL_ADDRESSING || DIRECT_ADDRESSING
static __inline__ uae_u8 *do_get_real_address(uaecptr addr)
{
        return (uae_u8 *)MEMBaseDiff + addr;
}
static __inline__ uae_u32 do_get_virtual_address(uae_u8 *addr)
{
        return (uintptr)addr - MEMBaseDiff;
}
static __inline__ uae_u32 get_long(uaecptr addr)
{
    uae_u32 * const m = (uae_u32 *)do_get_real_address(addr);
    return do_get_mem_long(m);
}
static __inline__ uae_u32 get_word(uaecptr addr)
{
    uae_u16 * const m = (uae_u16 *)do_get_real_address(addr);
    return do_get_mem_word(m);
}
static __inline__ uae_u32 get_byte(uaecptr addr)
{
    uae_u8 * const m = (uae_u8 *)do_get_real_address(addr);
    return do_get_mem_byte(m);
}
static __inline__ void put_long(uaecptr addr, uae_u32 l)
{
    uae_u32 * const m = (uae_u32 *)do_get_real_address(addr);
    do_put_mem_long(m, l);
}
static __inline__ void put_word(uaecptr addr, uae_u32 w)
{
    uae_u16 * const m = (uae_u16 *)do_get_real_address(addr);
    do_put_mem_word(m, w);
}
static __inline__ void put_byte(uaecptr addr, uae_u32 b)
{
    uae_u8 * const m = (uae_u8 *)do_get_real_address(addr);
    do_put_mem_byte(m, b);
}
static __inline__ uae_u8 *get_real_address(uaecptr addr)
{
        return do_get_real_address(addr);
}
static __inline__ uae_u32 get_virtual_address(uae_u8 *addr)
{
        return do_get_virtual_address(addr);
}
#else
static __inline__ uae_u32 get_long(uaecptr addr)
{
    return longget_1(addr);
}
static __inline__ uae_u32 get_word(uaecptr addr)
{
    return wordget_1(addr);
}
static __inline__ uae_u32 get_byte(uaecptr addr)
{
    return byteget_1(addr);
}
static __inline__ void put_long(uaecptr addr, uae_u32 l)
{
    longput_1(addr, l);
}
static __inline__ void put_word(uaecptr addr, uae_u32 w)
{
    wordput_1(addr, w);
}
static __inline__ void put_byte(uaecptr addr, uae_u32 b)
{
    byteput_1(addr, b);
}
static __inline__ uae_u8 *get_real_address(uaecptr addr)
{
    return get_mem_bank(addr).xlateaddr(addr);
}
/* gb-- deliberately not implemented since it shall not be used... */
extern uae_u32 get_virtual_address(uae_u8 *addr);
#endif /* DIRECT_ADDRESSING || REAL_ADDRESSING */

#endif /* MEMORY_H */

Revision:	1.7
Committed:	2007-06-13T15:57:46Z (17 years, 5 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
Changes since 1.6:	+0 -15 lines
Log Message:	Remove dead code, B2 doesn't use valid_address()
#	User	Rev	Content
1	cebix	1.1	/*
2			* UAE - The Un*x Amiga Emulator
3			*
4			* memory management
5			*
6			* Copyright 1995 Bernd Schmidt
7			*/
8
9			#ifndef UAE_MEMORY_H
10			#define UAE_MEMORY_H
11
12	gbeauche	1.2	#if !DIRECT_ADDRESSING && !REAL_ADDRESSING
13
14	cebix	1.1	/* Enabling this adds one additional native memory reference per 68k memory
15			* access, but saves one shift (on the x86). Enabling this is probably
16			* better for the cache. My favourite benchmark (PP2) doesn't show a
17			* difference, so I leave this enabled. */
18
19			#if 1 \|\| defined SAVE_MEMORY
20			#define SAVE_MEMORY_BANKS
21			#endif
22
23			typedef uae_u32 (REGPARAM2 *mem_get_func)(uaecptr) REGPARAM;
24			typedef void (REGPARAM2 *mem_put_func)(uaecptr, uae_u32) REGPARAM;
25			typedef uae_u8 (REGPARAM2 xlate_func)(uaecptr) REGPARAM;
26
27			#undef DIRECT_MEMFUNCS_SUCCESSFUL
28
29			#ifndef CAN_MAP_MEMORY
30			#undef USE_COMPILER
31			#endif
32
33			#if defined(USE_COMPILER) && !defined(USE_MAPPED_MEMORY)
34			#define USE_MAPPED_MEMORY
35			#endif
36
37			typedef struct {
38			/* These ones should be self-explanatory... */
39			mem_get_func lget, wget, bget;
40			mem_put_func lput, wput, bput;
41			/* Use xlateaddr to translate an Amiga address to a uae_u8 * that can
42			* be used to address memory without calling the wget/wput functions.
43			* This doesn't work for all memory banks, so this function may call
44			* abort(). */
45			xlate_func xlateaddr;
46			} addrbank;
47
48			extern uae_u8 filesysory[65536];
49
50			extern addrbank ram_bank; // Mac RAM
51			extern addrbank rom_bank; // Mac ROM
52			extern addrbank frame_bank; // Frame buffer
53
54			/* Default memory access functions */
55
56			extern uae_u8 *REGPARAM2 default_xlate(uaecptr addr) REGPARAM;
57
58			#define bankindex(addr) (((uaecptr)(addr)) >> 16)
59
60			#ifdef SAVE_MEMORY_BANKS
61			extern addrbank *mem_banks[65536];
62			#define get_mem_bank(addr) (*mem_banks[bankindex(addr)])
63			#define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = (b))
64			#else
65			extern addrbank mem_banks[65536];
66			#define get_mem_bank(addr) (mem_banks[bankindex(addr)])
67			#define put_mem_bank(addr, b) (mem_banks[bankindex(addr)] = *(b))
68			#endif
69
70			extern void memory_init(void);
71			extern void map_banks(addrbank *bank, int first, int count);
72
73			#ifndef NO_INLINE_MEMORY_ACCESS
74
75			#define longget(addr) (call_mem_get_func(get_mem_bank(addr).lget, addr))
76			#define wordget(addr) (call_mem_get_func(get_mem_bank(addr).wget, addr))
77			#define byteget(addr) (call_mem_get_func(get_mem_bank(addr).bget, addr))
78			#define longput(addr,l) (call_mem_put_func(get_mem_bank(addr).lput, addr, l))
79			#define wordput(addr,w) (call_mem_put_func(get_mem_bank(addr).wput, addr, w))
80			#define byteput(addr,b) (call_mem_put_func(get_mem_bank(addr).bput, addr, b))
81
82			#else
83
84			extern uae_u32 longget(uaecptr addr);
85			extern uae_u32 wordget(uaecptr addr);
86			extern uae_u32 byteget(uaecptr addr);
87			extern void longput(uaecptr addr, uae_u32 l);
88			extern void wordput(uaecptr addr, uae_u32 w);
89			extern void byteput(uaecptr addr, uae_u32 b);
90
91			#endif
92
93			#ifndef MD_HAVE_MEM_1_FUNCS
94
95			#define longget_1 longget
96			#define wordget_1 wordget
97			#define byteget_1 byteget
98			#define longput_1 longput
99			#define wordput_1 wordput
100			#define byteput_1 byteput
101
102			#endif
103
104	gbeauche	1.2	#endif /* !DIRECT_ADDRESSING && !REAL_ADDRESSING */
105
106	cebix	1.1	#if REAL_ADDRESSING
107	gbeauche	1.3	const uintptr MEMBaseDiff = 0;
108	gbeauche	1.4	#endif
109	gbeauche	1.2	#if DIRECT_ADDRESSING
110			extern uintptr MEMBaseDiff;
111	gbeauche	1.4	#endif
112
113	cebix	1.5	#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
114	gbeauche	1.4	static __inline__ uae_u8 *do_get_real_address(uaecptr addr)
115			{
116			return (uae_u8 *)MEMBaseDiff + addr;
117			}
118			static __inline__ uae_u32 do_get_virtual_address(uae_u8 *addr)
119			{
120			return (uintptr)addr - MEMBaseDiff;
121			}
122	cebix	1.1	static __inline__ uae_u32 get_long(uaecptr addr)
123			{
124	gbeauche	1.2	uae_u32 * const m = (uae_u32 *)do_get_real_address(addr);
125			return do_get_mem_long(m);
126	cebix	1.1	}
127			static __inline__ uae_u32 get_word(uaecptr addr)
128			{
129	gbeauche	1.2	uae_u16 * const m = (uae_u16 *)do_get_real_address(addr);
130			return do_get_mem_word(m);
131	cebix	1.1	}
132			static __inline__ uae_u32 get_byte(uaecptr addr)
133			{
134	gbeauche	1.2	uae_u8 * const m = (uae_u8 *)do_get_real_address(addr);
135			return do_get_mem_byte(m);
136	cebix	1.1	}
137			static __inline__ void put_long(uaecptr addr, uae_u32 l)
138			{
139	gbeauche	1.2	uae_u32 * const m = (uae_u32 *)do_get_real_address(addr);
140			do_put_mem_long(m, l);
141	cebix	1.1	}
142			static __inline__ void put_word(uaecptr addr, uae_u32 w)
143			{
144	gbeauche	1.2	uae_u16 * const m = (uae_u16 *)do_get_real_address(addr);
145			do_put_mem_word(m, w);
146	cebix	1.1	}
147			static __inline__ void put_byte(uaecptr addr, uae_u32 b)
148			{
149	gbeauche	1.2	uae_u8 * const m = (uae_u8 *)do_get_real_address(addr);
150			do_put_mem_byte(m, b);
151	cebix	1.1	}
152			static __inline__ uae_u8 *get_real_address(uaecptr addr)
153			{
154	gbeauche	1.2	return do_get_real_address(addr);
155			}
156			static __inline__ uae_u32 get_virtual_address(uae_u8 *addr)
157			{
158			return do_get_virtual_address(addr);
159	cebix	1.1	}
160			#else
161			static __inline__ uae_u32 get_long(uaecptr addr)
162			{
163			return longget_1(addr);
164			}
165			static __inline__ uae_u32 get_word(uaecptr addr)
166			{
167			return wordget_1(addr);
168			}
169			static __inline__ uae_u32 get_byte(uaecptr addr)
170			{
171			return byteget_1(addr);
172			}
173			static __inline__ void put_long(uaecptr addr, uae_u32 l)
174			{
175			longput_1(addr, l);
176			}
177			static __inline__ void put_word(uaecptr addr, uae_u32 w)
178			{
179			wordput_1(addr, w);
180			}
181			static __inline__ void put_byte(uaecptr addr, uae_u32 b)
182			{
183			byteput_1(addr, b);
184			}
185			static __inline__ uae_u8 *get_real_address(uaecptr addr)
186			{
187			return get_mem_bank(addr).xlateaddr(addr);
188			}
189	gbeauche	1.2	/* gb-- deliberately not implemented since it shall not be used... */
190			extern uae_u32 get_virtual_address(uae_u8 *addr);
191			#endif /* DIRECT_ADDRESSING \|\| REAL_ADDRESSING */
192
193			#endif /* MEMORY_H */
194	cebix	1.1