asar coverage - build #77

src/asar/
File: src/asar/libsmw.h
Date: 2024-01-18 12:07:22
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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 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 321140 inline int snestopc(int addr)
44 {
45
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 321140 if (addr<0 || addr>0xFFFFFF) return -1;//not 24bit
46
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 320656 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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 314120 if ((addr&0xFE0000)==0x7E0000 ||//wram
51
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 314120 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, other strange junk
52
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 314110 (addr&0x708000)==0x700000)//sram (low parts of banks 70-7D)
53 return -1;
54 314110 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
55 314110 return addr;
56 }
57 if (mapper==hirom)
58 {
59
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 1838 if ((addr&0xFE0000)==0x7E0000 ||//wram
60
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 1838 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
61 return -1;
62 1838 return addr&0x3FFFFF;
63 }
64 if (mapper==exlorom)
65 {
66
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 1634 if ((addr&0xF00000)==0x700000 ||//wram, sram
67
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 1634 (addr&0x408000)==0x000000)//area that shouldn't be used in lorom
68 return -1;
69
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 1634 if (addr&0x800000)
70 {
71 294 addr=((addr&0x7F0000)>>1|(addr&0x7FFF));
72 }
73 else
74 {
75 1340 addr=((addr&0x7F0000)>>1|(addr&0x7FFF))+0x400000;
76 }
77 1634 return addr;
78 }
79 if (mapper==exhirom)
80 {
81
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 1686 if ((addr&0xFE0000)==0x7E0000 ||//wram
82
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 1686 (addr&0x408000)==0x000000)//hardware regs, ram mirrors, other strange junk
83 return -1;
84
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 1686 if ((addr&0x800000)==0x000000) return (addr&0x3FFFFF)|0x400000;
85 344 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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 94 if ((addr&0x600000)==0x600000 ||//wram, sram, open bus
91
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 94 (addr&0x408000)==0x000000 ||//hardware regs, ram mirrors, rom mirrors, other strange junk
92
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 94 (addr&0x800000)==0x800000)//fastrom isn't valid either in superfx
93 return -1;
94
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 94 if (addr&0x400000) return addr&0x3FFFFF;
95 94 else return (addr&0x7F0000)>>1|(addr&0x7FFF);
96 }
97 if (mapper==sa1rom)
98 {
99
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 204 if ((addr&0x408000)==0x008000)
100 {
101 204 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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 404 if ((addr&0xC00000)==0xC00000)//hirom
112 {
113 192 return (addr&0x3FFFFF)|0x400000;
114 }
115
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 212 if ((addr&0xC00000)==0x000000 || (addr&0xC00000)==0x800000)//lorom
116 {
117
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 212 if ((addr&0x008000)==0x000000) return -1;
118 212 return (addr&0x800000)>>2 | (addr&0x3F0000)>>1 | (addr&0x7FFF);
119 }
120 return -1;
121 }
122 if (mapper==norom)
123 {
124 676 return addr;
125 }
126 return -1;
127 }
128
129 160942 inline int pctosnes(int addr)
130 {
131
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 160942 if (addr<0) return -1;
132
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 160942 if (mapper==lorom)
133 {
134
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 159578 if (addr>=0x400000) return -1;
135 159578 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
136 159578 return addr|0x800000;
137 }
138 if (mapper==hirom)
139 {
140
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 312 if (addr>=0x400000) return -1;
141 312 return addr|0xC00000;
142 }
143 if (mapper == exlorom)
144 {
145
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 156 if (addr>=0x800000) return -1;
146
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 156 if (addr&0x400000)
147 {
148 6 addr-=0x400000;
149 6 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
150 6 return addr;
151 }
152 else
153 {
154 150 addr=((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
155 150 return addr|0x800000;
156 }
157 }
158 if (mapper == exhirom)
159 {
160
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 180 if (addr>=0x800000) return -1;
161
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 180 if (addr&0x400000) return addr;
162 174 return addr|0xC00000;
163 }
164 if (mapper==sa1rom)
165 {
166
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 276 for (int i=0;i<8;i++)
167 {
168
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 276 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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 202 if (addr>=0x800000) return -1;
175
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 202 if ((addr&0x400000)==0x400000)
176 {
177 96 return addr|0xC00000;
178 }
179
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 106 if ((addr&0x600000)==0x000000)
180 {
181 58 return ((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
182 }
183
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 48 if ((addr&0x600000)==0x200000)
184 {
185 48 return 0x800000|((addr<<1)&0x3F0000)|0x8000|(addr&0x7FFF);
186 }
187 return -1;
188 }
189 if (mapper==sfxrom)
190 {
191
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 58 if (addr>=0x200000) return -1;
192 54 return ((addr<<1)&0x7F0000)|(addr&0x7FFF)|0x8000;
193 }
194 if (mapper==norom)
195 {
196 340 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