asar coverage - build #69

src/asar/
File: src/asar/libsmw.h
Date: 2024-01-17 04:38:17
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1 #pragma once
2
3 #include "errors.h"
4 #include "autoarray.h"
5 #include <cstdint>
6
7 extern const unsigned char * romdata;
8 extern int romlen;
9 extern asar_error_id openromerror;
10 bool openrom(const char * filename, bool confirm=true);
11 uint32_t closerom(bool save = true);
12
13 enum mapper_t {
14 invalid_mapper,
15 lorom,
16 hirom,
17 sa1rom,
18 bigsa1rom,
19 sfxrom,
20 exlorom,
21 exhirom,
22 norom
23 } extern mapper;
24
25 extern int sa1banks[8];//only 0, 1, 4, 5 are used
26
27 void addromwrite(int pcoffset, int numbytes);
28 void writeromdata(int pcoffset, const void * indata, int numbytes);
29 void writeromdata_byte(int pcoffset, unsigned char indata);
30 void writeromdata_bytes(int pcoffset, unsigned char indata, int numbytes);
31
32 struct writtenblockdata {
33 int pcoffset;
34 int snesoffset;
35 int numbytes;
36 };
37
38 extern autoarray<writtenblockdata> writtenblocks;
39
40 319125 inline int snestopc(int addr)
41 {
42
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 319125 if (addr<0 || addr>0xFFFFFF) return -1;//not 24bit
43
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 319117 if (mapper==lorom)
44 {
45 // randomdude999: The low pages ($0000-$7FFF) of banks 70-7D are used
46 // for SRAM, the high pages are available for ROM data though
47
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 313111 if ((addr&0xFE0000)==0x7E0000 ||//wram
48
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 313111 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, other strange junk
49
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 313101 (addr&0x708000)==0x700000)//sram (low parts of banks 70-7D)
50 5 return -1;
51 313101 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
52 313101 return addr;
53 }
54
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 3003 if (mapper==hirom)
55 {
56
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 1588 if ((addr&0xFE0000)==0x7E0000 ||//wram
57
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 1588 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
58 ✗ return -1;
59 1588 return addr&0x3FFFFF;
60 }
61
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 2209 if (mapper==exlorom)
62 {
63
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 1496 if ((addr&0xF00000)==0x700000 ||//wram, sram
64
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 1496 (addr&0x408000)==0x000000)//area that shouldn't be used in lorom
65 ✗ return -1;
66
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 1496 if (addr&0x800000)
67 {
68 294 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
69 }
70 else
71 {
72 1202 addr=((addr&0x7F0000)>>1|(addr&0x7FFF))+0x400000;
73 }
74 1496 return addr;
75 }
76
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 1461 if (mapper==exhirom)
77 {
78
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 1548 if ((addr&0xFE0000)==0x7E0000 ||//wram
79
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 1548 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
80 ✗ return -1;
81
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 1548 if ((addr&0x800000)==0x000000) return (addr&0x3FFFFF)|0x400000;
82 344 return addr&0x3FFFFF;
83 }
84
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 687 if (mapper==sfxrom)
85 {
86 // Asar emulates GSU1, because apparently emulators don't support the extra ROM data from GSU2
87
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 92 if ((addr&0x600000)==0x600000 ||//wram, sram, open bus
88
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 92 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, rom mirrors, other strange junk
89
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 92 (addr&0x800000)==0x800000)//fastrom isn't valid either in superfx
90 ✗ return -1;
91
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 92 if (addr&0x400000) return addr&0x3FFFFF;
92 92 else return (addr&0x7F0000)>>1|(addr&0x7FFF);
93 }
94
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 641 if (mapper==sa1rom)
95 {
96
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 202 if ((addr&0x408000)==0x008000)
97 {
98 202 return sa1banks[(addr&0xE00000)>>21]|((addr&0x1F0000)>>1)|(addr&0x007FFF);
99 }
100 ✗ if ((addr&0xC00000)==0xC00000)
101 {
102 ✗ return sa1banks[((addr&0x100000)>>20)|((addr&0x200000)>>19)]|(addr&0x0FFFFF);
103 }
104 ✗ return -1;
105 }
106
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 540 if (mapper==bigsa1rom)
107 {
108
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 404 if ((addr&0xC00000)==0xC00000)//hirom
109 {
110 192 return (addr&0x3FFFFF)|0x400000;
111 }
112
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 212 if ((addr&0xC00000)==0x000000 || (addr&0xC00000)==0x800000)//lorom
113 {
114
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 212 if ((addr&0x008000)==0x000000) return -1;
115 212 return (addr&0x800000)>>2 | (addr&0x3F0000)>>1 | (addr&0x7FFF);
116 }
117 ✗ return -1;
118 }
119
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 338 if (mapper==norom)
120 {
121 676 return addr;
122 }
123 ✗ return -1;
124 }
125
126 159706 inline int pctosnes(int addr)
127 {
128
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 159706 if (addr<0) return -1;
129
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 159706 if (mapper==lorom)
130 {
131
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 158458 if (addr>=0x400000) return -1;
132 158458 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
133 158458 return addr|0x800000;
134 }
135
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 624 if (mapper==hirom)
136 {
137
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 196 if (addr>=0x400000) return -1;
138 196 return addr|0xC00000;
139 }
140
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 526 if (mapper == exlorom)
141 {
142
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 156 if (addr>=0x800000) return -1;
143
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 156 if (addr&0x400000)
144 {
145 6 addr-=0x400000;
146 6 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
147 6 return addr;
148 }
149 else
150 {
151 150 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
152 150 return addr|0x800000;
153 }
154 }
155
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 448 if (mapper == exhirom)
156 {
157
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 180 if (addr>=0x800000) return -1;
158
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 180 if (addr&0x400000) return addr;
159 174 return addr|0xC00000;
160 }
161
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 358 if (mapper==sa1rom)
162 {
163
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 276 for (int i=0;i<8;i++)
164 {
165
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 276 if (sa1banks[i]==(addr&0x700000)){ return 0x008000|(i<<21)|((addr&0x0F8000)<<1)|(addr&0x7FFF);}
166 }
167 ✗ return -1;
168 }
169
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 300 if (mapper==bigsa1rom)
170 {
171
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 202 if (addr>=0x800000) return -1;
172
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 202 if ((addr&0x400000)==0x400000)
173 {
174 96 return addr|0xC00000;
175 }
176
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 106 if ((addr&0x600000)==0x000000)
177 {
178 58 return ((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
179 }
180
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 48 if ((addr&0x600000)==0x200000)
181 {
182 48 return 0x800000|((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
183 }
184 ✗ return -1;
185 }
186
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 199 if (mapper==sfxrom)
187 {
188
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 58 if (addr>=0x200000) return -1;
189 54 return ((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
190 }
191
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 170 if (mapper==norom)
192 {
193 340 return addr;
194 }
195 ✗ return -1;
196 }
197
198 int getpcfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, unsigned char freespacebyte=0x00, bool write_rats=true);
199 int getsnesfreespace(int size, int target_bank, bool autoexpand=true, bool respectbankborders=true, bool align=false, unsigned char freespacebyte=0x00, bool write_rats=true);
200
201 void removerats(int snesaddr, unsigned char clean_byte);
202 void handle_cleared_rats_tags();
203 int ratsstart(int pcaddr);
204
205 void fixchecksum();
206
207 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.
208