asar coverage - build #175

src/asar/
File: src/asar/libsmw.h
Date: 2024-01-28 00:44:31
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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 extern asar_error_id openromerror;
12 bool openrom(const char * filename, bool confirm=true);
13 uint32_t closerom(bool save = true);
14
15 enum mapper_t {
16 invalid_mapper,
17 lorom,
18 hirom,
19 sa1rom,
20 bigsa1rom,
21 sfxrom,
22 exlorom,
23 exhirom,
24 norom
25 } extern mapper;
26
27 extern int sa1banks[8];//only 0, 1, 4, 5 are used
28
29 void addromwrite(int pcoffset, int numbytes);
30 void writeromdata(int pcoffset, const void * indata, int numbytes);
31 // optionally don't add the romwrite, because sometimes we did that in an earlier pass already
32 // (or sometimes the bytes are just rom size padding)
33 void writeromdata_byte(int pcoffset, unsigned char indata, bool add_write = true);
34 void writeromdata_bytes(int pcoffset, unsigned char indata, int numbytes, bool add_write = true);
35
36 struct writtenblockdata {
37 int pcoffset;
38 int snesoffset;
39 int numbytes;
40 };
41
42 extern autoarray<writtenblockdata> writtenblocks;
43 extern std::vector<writtenblockdata> found_rats_tags;
44 extern bool found_rats_tags_initialized;
45
46 892941 inline int snestopc(int addr)
47 {
48
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 892941 if (addr<0 || addr>0xFFFFFF) return -1;//not 24bit
49
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 891429 if (mapper==lorom)
50 {
51 // randomdude999: The low pages ($0000-$7FFF) of banks 70-7D are used
52 // for SRAM, the high pages are available for ROM data though
53
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 882632 if ((addr&0xFE0000)==0x7E0000 ||//wram
54
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 882632 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, other strange junk
55
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 882620 (addr&0x708000)==0x700000)//sram (low parts of banks 70-7D)
56 6 return -1;
57 882620 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
58 882620 return addr;
59 }
60
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 4441 if (mapper==hirom)
61 {
62
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 2350 if ((addr&0xFE0000)==0x7E0000 ||//wram
63
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 2350 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
64 ✗ return -1;
65 2350 return addr&0x3FFFFF;
66 }
67
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 3255 if (mapper==exlorom)
68 {
69
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 1956 if ((addr&0xF00000)==0x700000 ||//wram, sram
70
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 1956 (addr&0x408000)==0x000000)//area that shouldn't be used in lorom
71 ✗ return -1;
72
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 1956 if (addr&0x800000)
73 {
74 456 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
75 }
76 else
77 {
78 1500 addr=((addr&0x7F0000)>>1|(addr&0x7FFF))+0x400000;
79 }
80 1956 return addr;
81 }
82
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 2272 if (mapper==exhirom)
83 {
84
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 2040 if ((addr&0xFE0000)==0x7E0000 ||//wram
85
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 2040 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
86 ✗ return -1;
87
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 2040 if ((addr&0x800000)==0x000000) return (addr&0x3FFFFF)|0x400000;
88 534 return addr&0x3FFFFF;
89 }
90
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 1247 if (mapper==sfxrom)
91 {
92 // Asar emulates GSU1, because apparently emulators don't support the extra ROM data from GSU2
93
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 210 if ((addr&0x600000)==0x600000 ||//wram, sram, open bus
94
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 210 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, rom mirrors, other strange junk
95
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 210 (addr&0x800000)==0x800000)//fastrom isn't valid either in superfx
96 ✗ return -1;
97
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 210 if (addr&0x400000) return addr&0x3FFFFF;
98 210 else return (addr&0x7F0000)>>1|(addr&0x7FFF);
99 }
100
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 1137 if (mapper==sa1rom)
101 {
102
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 450 if ((addr&0x408000)==0x008000)
103 {
104 450 return sa1banks[(addr&0xE00000)>>21]|((addr&0x1F0000)>>1)|(addr&0x007FFF);
105 }
106 ✗ if ((addr&0xC00000)==0xC00000)
107 {
108 ✗ return sa1banks[((addr&0x100000)>>20)|((addr&0x200000)>>19)]|(addr&0x0FFFFF);
109 }
110 ✗ return -1;
111 }
112
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 907 if (mapper==bigsa1rom)
113 {
114
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 722 if ((addr&0xC00000)==0xC00000)//hirom
115 {
116 336 return (addr&0x3FFFFF)|0x400000;
117 }
118
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 386 if ((addr&0xC00000)==0x000000 || (addr&0xC00000)==0x800000)//lorom
119 {
120
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 386 if ((addr&0x008000)==0x000000) return -1;
121 386 return (addr&0x800000)>>2 | (addr&0x3F0000)>>1 | (addr&0x7FFF);
122 }
123 ✗ return -1;
124 }
125
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 541 if (mapper==norom)
126 {
127 1069 return addr;
128 }
129 ✗ return -1;
130 }
131
132 457491 inline int pctosnes(int addr)
133 {
134
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 457491 if (addr<0) return -1;
135
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 457491 if (mapper==lorom)
136 {
137
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 455046 if (addr>=0x400000) return -1;
138 455046 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
139 455046 return addr|0x800000;
140 }
141
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 1242 if (mapper==hirom)
142 {
143
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 682 if (addr>=0x400000) return -1;
144 682 return addr|0xC00000;
145 }
146
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 897 if (mapper == exlorom)
147 {
148
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 257 if (addr>=0x800000) return -1;
149
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 257 if (addr&0x400000)
150 {
151 23 addr-=0x400000;
152 23 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
153 23 return addr;
154 }
155 else
156 {
157 234 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
158 234 return addr|0x800000;
159 }
160 }
161
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 766 if (mapper == exhirom)
162 {
163
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 293 if (addr>=0x800000) return -1;
164
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 293 if (addr&0x400000) return addr;
165 270 return addr|0xC00000;
166 }
167
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 617 if (mapper==sa1rom)
168 {
169
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 477 for (int i=0;i<8;i++)
170 {
171
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 477 if (sa1banks[i]==(addr&0x700000)){ return 0x008000|(i<<21)|((addr&0x0F8000)<<1)|(addr&0x7FFF);}
172 }
173 ✗ return -1;
174 }
175
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 496 if (mapper==bigsa1rom)
176 {
177
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 313 if (addr>=0x800000) return -1;
178
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 313 if ((addr&0x400000)==0x400000)
179 {
180 144 return addr|0xC00000;
181 }
182
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 169 if ((addr&0x600000)==0x000000)
183 {
184 97 return ((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
185 }
186
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 72 if ((addr&0x600000)==0x200000)
187 {
188 72 return 0x800000|((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
189 }
190 ✗ return -1;
191 }
192
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 337 if (mapper==sfxrom)
193 {
194
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 147 if (addr>=0x200000) return -1;
195 141 return ((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
196 }
197
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 261 if (mapper==norom)
198 {
199 516 return addr;
200 }
201 ✗ return -1;
202 }
203
204 int getpcfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, bool write_rats=true, int search_start=-1);
205 int getsnesfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, bool write_rats=true, int search_start=-1);
206
207 void removerats(int snesaddr, unsigned char clean_byte);
208 void handle_cleared_rats_tags();
209 int ratsstart(int pcaddr);
210
211 void fixchecksum();
212
213 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.
214