asar coverage - build #287

src/asar/
File: src/asar/libsmw.h
Date: 2025-03-09 20:28:22
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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 unsigned char freespacebyte;
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 // (or sometimes the bytes are just rom size padding)
32 void writeromdata_byte(int pcoffset, unsigned char indata, bool add_write = true);
33 void writeromdata_bytes(int pcoffset, unsigned char indata, int numbytes, bool add_write = true);
34
35 struct writtenblockdata {
36 int pcoffset;
37 int snesoffset;
38 int numbytes;
39 };
40
41 extern autoarray<writtenblockdata> writtenblocks;
42 extern std::vector<writtenblockdata> found_rats_tags;
43 extern bool found_rats_tags_initialized;
44
45 294507 inline int snestopc(int addr)
46 {
47
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 294507 if (addr<0 || addr>0xFFFFFF) return -1;//not 24bit
48
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 294003 if (mapper==lorom)
49 {
50 // randomdude999: The low pages ($0000-$7FFF) of banks 70-7D are used
51 // for SRAM, the high pages are available for ROM data though
52
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 292599 if ((addr&0xFE0000)==0x7E0000 ||//wram
53
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 292599 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, other strange junk
54
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 292583 (addr&0x708000)==0x700000)//sram (low parts of banks 70-7D)
55 16 return -1;
56 292583 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
57 292583 return addr;
58 }
59
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 1404 if (mapper==hirom)
60 {
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 248 if ((addr&0xFE0000)==0x7E0000 ||//wram
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 248 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
63 ✗ return -1;
64 248 return addr&0x3FFFFF;
65 }
66
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 1156 if (mapper==exlorom)
67 {
68
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 168 if ((addr&0xF00000)==0x700000 ||//wram, sram
69
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 168 (addr&0x408000)==0x000000)//area that shouldn't be used in lorom
70 ✗ return -1;
71
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 168 if (addr&0x800000)
72 {
73 152 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
74 }
75 else
76 {
77 16 addr=((addr&0x7F0000)>>1|(addr&0x7FFF))+0x400000;
78 }
79 168 return addr;
80 }
81
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 988 if (mapper==exhirom)
82 {
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 196 if ((addr&0xFE0000)==0x7E0000 ||//wram
84
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 196 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
85 ✗ return -1;
86
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 196 if ((addr&0x800000)==0x000000) return (addr&0x3FFFFF)|0x400000;
87 178 return addr&0x3FFFFF;
88 }
89
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 792 if (mapper==sfxrom)
90 {
91 // Asar emulates GSU1, because apparently emulators don't support the extra ROM data from GSU2
92
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 50 if ((addr&0x600000)==0x600000 ||//wram, sram, open bus
93
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 50 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, rom mirrors, other strange junk
94
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 50 (addr&0x800000)==0x800000)//fastrom isn't valid either in superfx
95 ✗ return -1;
96
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 50 if (addr&0x400000) return addr&0x3FFFFF;
97 50 else return (addr&0x7F0000)>>1|(addr&0x7FFF);
98 }
99
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 742 if (mapper==sa1rom)
100 {
101
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 130 if ((addr&0x408000)==0x008000)
102 {
103 130 return sa1banks[(addr&0xE00000)>>21]|((addr&0x1F0000)>>1)|(addr&0x007FFF);
104 }
105 ✗ if ((addr&0xC00000)==0xC00000)
106 {
107 ✗ return sa1banks[((addr&0x100000)>>20)|((addr&0x200000)>>19)]|(addr&0x0FFFFF);
108 }
109 ✗ return -1;
110 }
111
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 612 if (mapper==bigsa1rom)
112 {
113
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 234 if ((addr&0xC00000)==0xC00000)//hirom
114 {
115 112 return (addr&0x3FFFFF)|0x400000;
116 }
117
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 122 if ((addr&0xC00000)==0x000000 || (addr&0xC00000)==0x800000)//lorom
118 {
119
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 122 if ((addr&0x008000)==0x000000) return -1;
120 122 return (addr&0x800000)>>2 | (addr&0x3F0000)>>1 | (addr&0x7FFF);
121 }
122 ✗ return -1;
123 }
124
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 378 if (mapper==norom)
125 {
126 378 return addr;
127 }
128 ✗ return -1;
129 }
130
131 152041 inline int pctosnes(int addr)
132 {
133
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 152041 if (addr<0) return -1;
134
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 152041 if (mapper==lorom)
135 {
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 151251 if (addr>=0x400000) return -1;
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 151251 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
138 151251 return addr|0x800000;
139 }
140
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 790 if (mapper==hirom)
141 {
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 208 if (addr>=0x400000) return -1;
143 208 return addr|0xC00000;
144 }
145
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 582 if (mapper == exlorom)
146 {
147
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 89 if (addr>=0x800000) return -1;
148
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 89 if (addr&0x400000)
149 {
150 11 addr-=0x400000;
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 11 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
152 11 return addr;
153 }
154 else
155 {
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 78 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
157 78 return addr|0x800000;
158 }
159 }
160
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 493 if (mapper == exhirom)
161 {
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 101 if (addr>=0x800000) return -1;
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 101 if (addr&0x400000) return addr;
164 90 return addr|0xC00000;
165 }
166
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 392 if (mapper==sa1rom)
167 {
168
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 149 for (int i=0;i<8;i++)
169 {
170
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 149 if (sa1banks[i]==(addr&0x700000)){ return 0x008000|(i<<21)|((addr&0x0F8000)<<1)|(addr&0x7FFF);}
171 }
172 ✗ return -1;
173 }
174
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 323 if (mapper==bigsa1rom)
175 {
176
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 101 if (addr>=0x800000) return -1;
177
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 101 if ((addr&0x400000)==0x400000)
178 {
179 48 return addr|0xC00000;
180 }
181
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 53 if ((addr&0x600000)==0x000000)
182 {
183
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 29 return ((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
184 }
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 24 if ((addr&0x600000)==0x200000)
186 {
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 24 return 0x800000|((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
188 }
189 ✗ return -1;
190 }
191
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 222 if (mapper==sfxrom)
192 {
193
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 39 if (addr>=0x200000) return -1;
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 37 return ((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
195 }
196
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 183 if (mapper==norom)
197 {
198 183 return addr;
199 }
200 ✗ return -1;
201 }
202
203 int getpcfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, bool write_rats=true, int search_start=-1);
204 int getsnesfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, bool write_rats=true, int search_start=-1);
205
206 void removerats(int snesaddr, unsigned char clean_byte);
207 void handle_cleared_rats_tags();
208 int ratsstart(int pcaddr);
209
210 void fixchecksum();
211
212 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.
213