asar coverage - build #88

src/asar/
File: src/asar/libsmw.h
Date: 2024-01-19 15:10:57
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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 void writeromdata_byte(int pcoffset, unsigned char indata);
31 void writeromdata_bytes(int pcoffset, unsigned char indata, int numbytes);
32
33 struct writtenblockdata {
34 int pcoffset;
35 int snesoffset;
36 int numbytes;
37 };
38
39 extern autoarray<writtenblockdata> writtenblocks;
40 extern std::vector<writtenblockdata> found_rats_tags;
41 extern bool found_rats_tags_initialized;
42
43 950202 inline int snestopc(int addr)
44 {
45
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 950202 if (addr<0 || addr>0xFFFFFF) return -1;//not 24bit
46
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 948750 if (mapper==lorom)
47 {
48 // randomdude999: The low pages ($0000-$7FFF) of banks 70-7D are used
49 // for SRAM, the high pages are available for ROM data though
50
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 937242 if ((addr&0xFE0000)==0x7E0000 ||//wram
51
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 937242 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, other strange junk
52
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 937212 (addr&0x708000)==0x700000)//sram (low parts of banks 70-7D)
53 return -1;
54 937212 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
55 937212 return addr;
56 }
57 if (mapper==hirom)
58 {
59
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 2776 if ((addr&0xFE0000)==0x7E0000 ||//wram
60
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 2776 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
61 return -1;
62 2776 return addr&0x3FFFFF;
63 }
64 if (mapper==exlorom)
65 {
66
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 2244 if ((addr&0xF00000)==0x700000 ||//wram, sram
67
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 2244 (addr&0x408000)==0x000000)//area that shouldn't be used in lorom
68 return -1;
69
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 2244 if (addr&0x800000)
70 {
71 882 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
72 }
73 else
74 {
75 1362 addr=((addr&0x7F0000)>>1|(addr&0x7FFF))+0x400000;
76 }
77 2244 return addr;
78 }
79 if (mapper==exhirom)
80 {
81
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 2400 if ((addr&0xFE0000)==0x7E0000 ||//wram
82
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 2400 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
83 return -1;
84
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 2400 if ((addr&0x800000)==0x000000) return (addr&0x3FFFFF)|0x400000;
85 1032 return addr&0x3FFFFF;
86 }
87 if (mapper==sfxrom)
88 {
89 // Asar emulates GSU1, because apparently emulators don't support the extra ROM data from GSU2
90
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 252 if ((addr&0x600000)==0x600000 ||//wram, sram, open bus
91
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 252 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, rom mirrors, other strange junk
92
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 252 (addr&0x800000)==0x800000)//fastrom isn't valid either in superfx
93 return -1;
94
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 252 if (addr&0x400000) return addr&0x3FFFFF;
95 252 else return (addr&0x7F0000)>>1|(addr&0x7FFF);
96 }
97 if (mapper==sa1rom)
98 {
99
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 582 if ((addr&0x408000)==0x008000)
100 {
101 582 return sa1banks[(addr&0xE00000)>>21]|((addr&0x1F0000)>>1)|(addr&0x007FFF);
102 }
103 ✗ if ((addr&0xC00000)==0xC00000)
104 {
105 ✗ return sa1banks[((addr&0x100000)>>20)|((addr&0x200000)>>19)]|(addr&0x0FFFFF);
106 }
107 return -1;
108 }
109 if (mapper==bigsa1rom)
110 {
111
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 1202 if ((addr&0xC00000)==0xC00000)//hirom
112 {
113 576 return (addr&0x3FFFFF)|0x400000;
114 }
115
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 626 if ((addr&0xC00000)==0x000000 || (addr&0xC00000)==0x800000)//lorom
116 {
117
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 626 if ((addr&0x008000)==0x000000) return -1;
118 626 return (addr&0x800000)>>2 | (addr&0x3F0000)>>1 | (addr&0x7FFF);
119 }
120 return -1;
121 }
122 if (mapper==norom)
123 {
124 2052 return addr;
125 }
126 return -1;
127 }
128
129 481786 inline int pctosnes(int addr)
130 {
131
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 481786 if (addr<0) return -1;
132
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 481786 if (mapper==lorom)
133 {
134
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 477742 if (addr>=0x400000) return -1;
135 477742 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
136 477742 return addr|0x800000;
137 }
138 if (mapper==hirom)
139 {
140
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 901 if (addr>=0x400000) return -1;
141 901 return addr|0xC00000;
142 }
143 if (mapper == exlorom)
144 {
145
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 473 if (addr>=0x800000) return -1;
146
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 473 if (addr&0x400000)
147 {
148 23 addr-=0x400000;
149 23 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
150 23 return addr;
151 }
152 else
153 {
154 450 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
155 450 return addr|0x800000;
156 }
157 }
158 if (mapper == exhirom)
159 {
160
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 545 if (addr>=0x800000) return -1;
161
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 545 if (addr&0x400000) return addr;
162 522 return addr|0xC00000;
163 }
164 if (mapper==sa1rom)
165 {
166
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 813 for (int i=0;i<8;i++)
167 {
168
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 813 if (sa1banks[i]==(addr&0x700000)){ return 0x008000|(i<<21)|((addr&0x0F8000)<<1)|(addr&0x7FFF);}
169 }
170 return -1;
171 }
172 if (mapper==bigsa1rom)
173 {
174
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 601 if (addr>=0x800000) return -1;
175
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 601 if ((addr&0x400000)==0x400000)
176 {
177 288 return addr|0xC00000;
178 }
179
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 313 if ((addr&0x600000)==0x000000)
180 {
181 169 return ((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
182 }
183
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 144 if ((addr&0x600000)==0x200000)
184 {
185 144 return 0x800000|((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
186 }
187 return -1;
188 }
189 if (mapper==sfxrom)
190 {
191
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 159 if (addr>=0x200000) return -1;
192 147 return ((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
193 }
194 if (mapper==norom)
195 {
196 1032 return addr;
197 }
198 return -1;
199 }
200
201 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);
202 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);
203
204 void removerats(int snesaddr, unsigned char clean_byte);
205 void handle_cleared_rats_tags();
206 int ratsstart(int pcaddr);
207
208 void fixchecksum();
209
210 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.
211