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ef79bbde P |
1 | /*************************************************************************** |
2 | * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team * | |
3 | * * | |
4 | * This program is free software; you can redistribute it and/or modify * | |
5 | * it under the terms of the GNU General Public License as published by * | |
6 | * the Free Software Foundation; either version 2 of the License, or * | |
7 | * (at your option) any later version. * | |
8 | * * | |
9 | * This program is distributed in the hope that it will be useful, * | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
12 | * GNU General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU General Public License * | |
15 | * along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | #ifndef __PSXMEMORY_H__ | |
21 | #define __PSXMEMORY_H__ | |
22 | ||
23 | #ifdef __cplusplus | |
24 | extern "C" { | |
25 | #endif | |
26 | ||
27 | #include "psxcommon.h" | |
28 | ||
ffe97735 | 29 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
ef79bbde | 30 | |
0a260183 PC |
31 | #define SWAP16(v) __builtin_bswap16(v) |
32 | #define SWAP32(v) __builtin_bswap32(v) | |
ef79bbde P |
33 | #define SWAPu32(v) SWAP32((u32)(v)) |
34 | #define SWAPs32(v) SWAP32((s32)(v)) | |
35 | ||
36 | #define SWAPu16(v) SWAP16((u16)(v)) | |
37 | #define SWAPs16(v) SWAP16((s16)(v)) | |
38 | ||
39 | #else | |
40 | ||
41 | #define SWAP16(b) (b) | |
42 | #define SWAP32(b) (b) | |
43 | ||
44 | #define SWAPu16(b) (b) | |
45 | #define SWAPu32(b) (b) | |
46 | ||
47 | #endif | |
48 | ||
5b568098 | 49 | #ifdef LIGHTREC |
b012a437 | 50 | #define INVALID_PTR ((void *)-1) |
5b568098 | 51 | #else |
52 | #define INVALID_PTR NULL | |
53 | #endif | |
b012a437 | 54 | |
ef79bbde P |
55 | extern s8 *psxM; |
56 | #define psxMs8(mem) psxM[(mem) & 0x1fffff] | |
57 | #define psxMs16(mem) (SWAP16(*(s16 *)&psxM[(mem) & 0x1fffff])) | |
58 | #define psxMs32(mem) (SWAP32(*(s32 *)&psxM[(mem) & 0x1fffff])) | |
59 | #define psxMu8(mem) (*(u8 *)&psxM[(mem) & 0x1fffff]) | |
60 | #define psxMu16(mem) (SWAP16(*(u16 *)&psxM[(mem) & 0x1fffff])) | |
61 | #define psxMu32(mem) (SWAP32(*(u32 *)&psxM[(mem) & 0x1fffff])) | |
62 | ||
63 | #define psxMs8ref(mem) psxM[(mem) & 0x1fffff] | |
64 | #define psxMs16ref(mem) (*(s16 *)&psxM[(mem) & 0x1fffff]) | |
65 | #define psxMs32ref(mem) (*(s32 *)&psxM[(mem) & 0x1fffff]) | |
66 | #define psxMu8ref(mem) (*(u8 *)&psxM[(mem) & 0x1fffff]) | |
67 | #define psxMu16ref(mem) (*(u16 *)&psxM[(mem) & 0x1fffff]) | |
68 | #define psxMu32ref(mem) (*(u32 *)&psxM[(mem) & 0x1fffff]) | |
69 | ||
70 | extern s8 *psxP; | |
71 | #define psxPs8(mem) psxP[(mem) & 0xffff] | |
72 | #define psxPs16(mem) (SWAP16(*(s16 *)&psxP[(mem) & 0xffff])) | |
73 | #define psxPs32(mem) (SWAP32(*(s32 *)&psxP[(mem) & 0xffff])) | |
74 | #define psxPu8(mem) (*(u8 *)&psxP[(mem) & 0xffff]) | |
75 | #define psxPu16(mem) (SWAP16(*(u16 *)&psxP[(mem) & 0xffff])) | |
76 | #define psxPu32(mem) (SWAP32(*(u32 *)&psxP[(mem) & 0xffff])) | |
77 | ||
78 | #define psxPs8ref(mem) psxP[(mem) & 0xffff] | |
79 | #define psxPs16ref(mem) (*(s16 *)&psxP[(mem) & 0xffff]) | |
80 | #define psxPs32ref(mem) (*(s32 *)&psxP[(mem) & 0xffff]) | |
81 | #define psxPu8ref(mem) (*(u8 *)&psxP[(mem) & 0xffff]) | |
82 | #define psxPu16ref(mem) (*(u16 *)&psxP[(mem) & 0xffff]) | |
83 | #define psxPu32ref(mem) (*(u32 *)&psxP[(mem) & 0xffff]) | |
84 | ||
85 | extern s8 *psxR; | |
86 | #define psxRs8(mem) psxR[(mem) & 0x7ffff] | |
87 | #define psxRs16(mem) (SWAP16(*(s16 *)&psxR[(mem) & 0x7ffff])) | |
88 | #define psxRs32(mem) (SWAP32(*(s32 *)&psxR[(mem) & 0x7ffff])) | |
89 | #define psxRu8(mem) (*(u8* )&psxR[(mem) & 0x7ffff]) | |
90 | #define psxRu16(mem) (SWAP16(*(u16 *)&psxR[(mem) & 0x7ffff])) | |
91 | #define psxRu32(mem) (SWAP32(*(u32 *)&psxR[(mem) & 0x7ffff])) | |
92 | ||
93 | #define psxRs8ref(mem) psxR[(mem) & 0x7ffff] | |
94 | #define psxRs16ref(mem) (*(s16*)&psxR[(mem) & 0x7ffff]) | |
95 | #define psxRs32ref(mem) (*(s32*)&psxR[(mem) & 0x7ffff]) | |
96 | #define psxRu8ref(mem) (*(u8 *)&psxR[(mem) & 0x7ffff]) | |
97 | #define psxRu16ref(mem) (*(u16*)&psxR[(mem) & 0x7ffff]) | |
98 | #define psxRu32ref(mem) (*(u32*)&psxR[(mem) & 0x7ffff]) | |
99 | ||
100 | extern s8 *psxH; | |
101 | #define psxHs8(mem) psxH[(mem) & 0xffff] | |
102 | #define psxHs16(mem) (SWAP16(*(s16 *)&psxH[(mem) & 0xffff])) | |
103 | #define psxHs32(mem) (SWAP32(*(s32 *)&psxH[(mem) & 0xffff])) | |
104 | #define psxHu8(mem) (*(u8 *)&psxH[(mem) & 0xffff]) | |
105 | #define psxHu16(mem) (SWAP16(*(u16 *)&psxH[(mem) & 0xffff])) | |
106 | #define psxHu32(mem) (SWAP32(*(u32 *)&psxH[(mem) & 0xffff])) | |
107 | ||
108 | #define psxHs8ref(mem) psxH[(mem) & 0xffff] | |
109 | #define psxHs16ref(mem) (*(s16 *)&psxH[(mem) & 0xffff]) | |
110 | #define psxHs32ref(mem) (*(s32 *)&psxH[(mem) & 0xffff]) | |
111 | #define psxHu8ref(mem) (*(u8 *)&psxH[(mem) & 0xffff]) | |
112 | #define psxHu16ref(mem) (*(u16 *)&psxH[(mem) & 0xffff]) | |
113 | #define psxHu32ref(mem) (*(u32 *)&psxH[(mem) & 0xffff]) | |
114 | ||
115 | extern u8 **psxMemWLUT; | |
116 | extern u8 **psxMemRLUT; | |
e53fec71 | 117 | extern int cache_isolated; |
ef79bbde | 118 | |
e53fec71 PC |
119 | static inline void * psxm_lut(u32 mem, int write, u8 **lut) |
120 | { | |
121 | if (!DISABLE_MEM_LUTS) { | |
122 | void *ptr = lut[mem >> 16]; | |
123 | ||
124 | return ptr == INVALID_PTR ? INVALID_PTR : ptr + (u16)mem; | |
125 | } | |
126 | ||
127 | if (mem >= 0xa0000000) | |
128 | mem -= 0xa0000000; | |
129 | else | |
130 | mem &= ~0x80000000; | |
131 | ||
132 | if (mem < 0x800000) { | |
133 | if (cache_isolated) | |
134 | return INVALID_PTR; | |
135 | ||
136 | return &psxM[mem & 0x1fffff]; | |
137 | } | |
138 | ||
139 | if (mem > 0x1f800000 && mem <= 0x1f810000) | |
140 | return &psxH[mem - 0x1f800000]; | |
141 | ||
142 | if (!write) { | |
143 | if (mem > 0x1fc00000 && mem <= 0x1fc80000) | |
144 | return &psxR[mem - 0x1fc00000]; | |
145 | ||
146 | if (mem > 0x1f000000 && mem <= 0x1f010000) | |
147 | return &psxP[mem - 0x1f000000]; | |
148 | } | |
149 | ||
150 | return INVALID_PTR; | |
151 | } | |
152 | ||
153 | static inline void * psxm(u32 mem, int write) | |
154 | { | |
155 | return psxm_lut(mem, write, write ? psxMemWLUT : psxMemRLUT); | |
156 | } | |
157 | ||
158 | #define PSXM(mem) psxm(mem, 0) | |
ef79bbde P |
159 | #define PSXMs8(mem) (*(s8 *)PSXM(mem)) |
160 | #define PSXMs16(mem) (SWAP16(*(s16 *)PSXM(mem))) | |
161 | #define PSXMs32(mem) (SWAP32(*(s32 *)PSXM(mem))) | |
162 | #define PSXMu8(mem) (*(u8 *)PSXM(mem)) | |
163 | #define PSXMu16(mem) (SWAP16(*(u16 *)PSXM(mem))) | |
164 | #define PSXMu32(mem) (SWAP32(*(u32 *)PSXM(mem))) | |
165 | ||
166 | #define PSXMu32ref(mem) (*(u32 *)PSXM(mem)) | |
167 | ||
ef79bbde P |
168 | int psxMemInit(); |
169 | void psxMemReset(); | |
c6b7420b | 170 | void psxMemOnIsolate(int enable); |
ef79bbde P |
171 | void psxMemShutdown(); |
172 | ||
173 | u8 psxMemRead8 (u32 mem); | |
174 | u16 psxMemRead16(u32 mem); | |
175 | u32 psxMemRead32(u32 mem); | |
176 | void psxMemWrite8 (u32 mem, u8 value); | |
177 | void psxMemWrite16(u32 mem, u16 value); | |
178 | void psxMemWrite32(u32 mem, u32 value); | |
179 | void *psxMemPointer(u32 mem); | |
180 | ||
181 | #ifdef __cplusplus | |
182 | } | |
183 | #endif | |
184 | #endif |