asar coverage - build #136

src/asar/
File: src/asar/libsmw.h
Date: 2024-01-23 08:00:15
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1 #pragma once
2 #include <vector>
3
4 #include "errors.h"
5 #include "autoarray.h"
6 #include <cstdint>
7
8 extern const unsigned char * romdata;
9 extern int romlen;
10 extern asar_error_id openromerror;
11 bool openrom(const char * filename, bool confirm=true);
12 uint32_t closerom(bool save = true);
13
14 enum mapper_t {
15 invalid_mapper,
16 lorom,
17 hirom,
18 sa1rom,
19 bigsa1rom,
20 sfxrom,
21 exlorom,
22 exhirom,
23 norom
24 } extern mapper;
25
26 extern int sa1banks[8];//only 0, 1, 4, 5 are used
27
28 void addromwrite(int pcoffset, int numbytes);
29 void writeromdata(int pcoffset, const void * indata, int numbytes);
30 // optionally don't add the romwrite, because sometimes we did that in an earlier pass already
31 void writeromdata_byte(int pcoffset, unsigned char indata, bool add_write = true);
32 void writeromdata_bytes(int pcoffset, unsigned char indata, int numbytes);
33
34 struct writtenblockdata {
35 int pcoffset;
36 int snesoffset;
37 int numbytes;
38 };
39
40 extern autoarray<writtenblockdata> writtenblocks;
41 extern std::vector<writtenblockdata> found_rats_tags;
42 extern bool found_rats_tags_initialized;
43
44 890363 inline int snestopc(int addr)
45 {
46
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 890363 if (addr<0 || addr>0xFFFFFF) return -1;//not 24bit
47
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 888911 if (mapper==lorom)
48 {
49 // randomdude999: The low pages ($0000-$7FFF) of banks 70-7D are used
50 // for SRAM, the high pages are available for ROM data though
51
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 880528 if ((addr&0xFE0000)==0x7E0000 ||//wram
52
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 880528 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, other strange junk
53
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 880498 (addr&0x708000)==0x700000)//sram (low parts of banks 70-7D)
54 15 return -1;
55 880498 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
56 880498 return addr;
57 }
58
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 4234 if (mapper==hirom)
59 {
60
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 2212 if ((addr&0xFE0000)==0x7E0000 ||//wram
61
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 2212 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
62 ✗ return -1;
63 2212 return addr&0x3FFFFF;
64 }
65
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 3117 if (mapper==exlorom)
66 {
67
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 1818 if ((addr&0xF00000)==0x700000 ||//wram, sram
68
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 1818 (addr&0x408000)==0x000000)//area that shouldn't be used in lorom
69 ✗ return -1;
70
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 1818 if (addr&0x800000)
71 {
72 456 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
73 }
74 else
75 {
76 1362 addr=((addr&0x7F0000)>>1|(addr&0x7FFF))+0x400000;
77 }
78 1818 return addr;
79 }
80
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 2203 if (mapper==exhirom)
81 {
82
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 1902 if ((addr&0xFE0000)==0x7E0000 ||//wram
83
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 1902 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
84 ✗ return -1;
85
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 1902 if ((addr&0x800000)==0x000000) return (addr&0x3FFFFF)|0x400000;
86 534 return addr&0x3FFFFF;
87 }
88
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 1247 if (mapper==sfxrom)
89 {
90 // Asar emulates GSU1, because apparently emulators don't support the extra ROM data from GSU2
91
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 210 if ((addr&0x600000)==0x600000 ||//wram, sram, open bus
92
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 210 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, rom mirrors, other strange junk
93
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 210 (addr&0x800000)==0x800000)//fastrom isn't valid either in superfx
94 ✗ return -1;
95
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 210 if (addr&0x400000) return addr&0x3FFFFF;
96 210 else return (addr&0x7F0000)>>1|(addr&0x7FFF);
97 }
98
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 1137 if (mapper==sa1rom)
99 {
100
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 450 if ((addr&0x408000)==0x008000)
101 {
102 450 return sa1banks[(addr&0xE00000)>>21]|((addr&0x1F0000)>>1)|(addr&0x007FFF);
103 }
104 ✗ if ((addr&0xC00000)==0xC00000)
105 {
106 ✗ return sa1banks[((addr&0x100000)>>20)|((addr&0x200000)>>19)]|(addr&0x0FFFFF);
107 }
108 ✗ return -1;
109 }
110
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 907 if (mapper==bigsa1rom)
111 {
112
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 722 if ((addr&0xC00000)==0xC00000)//hirom
113 {
114 336 return (addr&0x3FFFFF)|0x400000;
115 }
116
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 386 if ((addr&0xC00000)==0x000000 || (addr&0xC00000)==0x800000)//lorom
117 {
118
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 386 if ((addr&0x008000)==0x000000) return -1;
119 386 return (addr&0x800000)>>2 | (addr&0x3F0000)>>1 | (addr&0x7FFF);
120 }
121 ✗ return -1;
122 }
123
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 541 if (mapper==norom)
124 {
125 1069 return addr;
126 }
127 ✗ return -1;
128 }
129
130 455659 inline int pctosnes(int addr)
131 {
132
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 455659 if (addr<0) return -1;
133
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 455659 if (mapper==lorom)
134 {
135
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 453214 if (addr>=0x400000) return -1;
136 453214 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
137 453214 return addr|0x800000;
138 }
139
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 1242 if (mapper==hirom)
140 {
141
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 682 if (addr>=0x400000) return -1;
142 682 return addr|0xC00000;
143 }
144
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 897 if (mapper == exlorom)
145 {
146
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 257 if (addr>=0x800000) return -1;
147
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 257 if (addr&0x400000)
148 {
149 23 addr-=0x400000;
150 23 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
151 23 return addr;
152 }
153 else
154 {
155 234 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
156 234 return addr|0x800000;
157 }
158 }
159
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 766 if (mapper == exhirom)
160 {
161
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 293 if (addr>=0x800000) return -1;
162
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 293 if (addr&0x400000) return addr;
163 270 return addr|0xC00000;
164 }
165
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 617 if (mapper==sa1rom)
166 {
167
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 477 for (int i=0;i<8;i++)
168 {
169
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 477 if (sa1banks[i]==(addr&0x700000)){ return 0x008000|(i<<21)|((addr&0x0F8000)<<1)|(addr&0x7FFF);}
170 }
171 ✗ return -1;
172 }
173
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 496 if (mapper==bigsa1rom)
174 {
175
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 313 if (addr>=0x800000) return -1;
176
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 313 if ((addr&0x400000)==0x400000)
177 {
178 144 return addr|0xC00000;
179 }
180
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 169 if ((addr&0x600000)==0x000000)
181 {
182 97 return ((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
183 }
184
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 72 if ((addr&0x600000)==0x200000)
185 {
186 72 return 0x800000|((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
187 }
188 ✗ return -1;
189 }
190
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 337 if (mapper==sfxrom)
191 {
192
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 147 if (addr>=0x200000) return -1;
193 141 return ((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
194 }
195
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 261 if (mapper==norom)
196 {
197 516 return addr;
198 }
199 ✗ return -1;
200 }
201
202 int getpcfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, unsigned char freespacebyte=0x00, bool write_rats=true, int search_start=-1);
203 int getsnesfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, unsigned char freespacebyte=0x00, bool write_rats=true, int search_start=-1);
204
205 void removerats(int snesaddr, unsigned char clean_byte);
206 void handle_cleared_rats_tags();
207 int ratsstart(int pcaddr);
208
209 void fixchecksum();
210
211 void WalkMetadata(int loc, void(*func)(int loc, char * name, int len, const unsigned char * contents));//This one calls func() for each metadata block in the RATS tag whose contents (metadata) start at loc in the ROM. Do not replace name with an invalid metadata name, and note that name is not null terminated.
212