5e6cf6b2 |
1 | //\r |
2 | // IDC File to disassemble Sega Genesis/Megadrive rom\r |
3 | // by Kaneda\r |
4 | //\r |
5 | // Useage:\r |
6 | // launch IDA with "idag -a -p68000 -Smida.idc"\r |
7 | // Select your .bin file\r |
8 | // Press OK to the 2 dialog boxes following\r |
9 | //\r |
10 | // 0.1 (12 Nov 2004 ): Initial release\r |
11 | // 0.2 (01 Jun 2005 ): Support for start adress <0x200 (skip header)\r |
12 | //\r |
13 | // Update on http://www.consoledev.fr.st\r |
14 | //\r |
15 | \r |
16 | #include <idc.idc>\r |
17 | \r |
18 | //-------------------------------------------------------------------------\r |
19 | static CW(off,name,cmt) {\r |
20 | auto x;\r |
21 | x = off;\r |
22 | MakeWord(x);\r |
23 | MakeName(x,name);\r |
24 | MakeRptCmt(x,cmt);\r |
25 | }\r |
26 | \r |
27 | //-------------------------------------------------------------------------\r |
28 | static CD(off,name,cmt) {\r |
29 | auto x;\r |
30 | x = off;\r |
31 | MakeDword(x);\r |
32 | MakeName(x,name);\r |
33 | MakeRptCmt(x,cmt);\r |
34 | }\r |
35 | \r |
36 | //-------------------------------------------------------------------------\r |
37 | static CB(off,name,cmt) {\r |
38 | auto x;\r |
39 | x = off;\r |
40 | MakeByte(x);\r |
41 | MakeName(x,name);\r |
42 | MakeRptCmt(x,cmt);\r |
43 | }\r |
44 | \r |
45 | static CS(off,end,name,cmt) {\r |
46 | auto x;\r |
47 | x = off;\r |
48 | MakeStr(x, end);\r |
49 | MakeName(x,name);\r |
50 | MakeRptCmt(x,cmt);\r |
51 | }\r |
52 | \r |
53 | static mdVector( ) {\r |
54 | auto i, addr;\r |
55 | \r |
56 | CD(0x00, "initStack", "Initial Stack");\r |
57 | CD(0x04, "startAddress", "Start Address");\r |
58 | CD(0x08, "", "Bus Error");\r |
59 | CD(0x0C, "", "Address Error");\r |
60 | CD(0x10, "", "Illegal instruction");\r |
61 | CD(0x14, "", "Zero Divide");\r |
62 | CD(0x18, "", "CHK instruction");\r |
63 | CD(0x1C, "", "TRAPV instruction");\r |
64 | CD(0x20, "", "Privilege Violation");\r |
65 | CD(0x24, "", "Trace");\r |
66 | CD(0x28, "", "Line 1010 Emulator");\r |
67 | CD(0x2C, "", "Line 1111 Emulator");\r |
68 | CD(0x30, "", "Reserved");\r |
69 | CD(0x34, "", "Reserved");\r |
70 | CD(0x38, "", "Reserved");\r |
71 | CD(0x3C, "", "Unitialized Interrrupt");\r |
72 | CD(0x40, "", "Reserved");\r |
73 | CD(0x44, "", "Reserved");\r |
74 | CD(0x48, "", "Reserved");\r |
75 | CD(0x4C, "", "Reserved");\r |
76 | CD(0x50, "", "Reserved");\r |
77 | CD(0x54, "", "Reserved");\r |
78 | CD(0x58, "", "Reserved");\r |
79 | CD(0x5C, "", "Reserved");\r |
80 | CD(0x60, "", "Spurious Interrupt");\r |
81 | CD(0x64, "", "Level 1 interrupt");\r |
82 | CD(0x68, "", "Level 2/External interrupt");\r |
83 | CD(0x6C, "", "Level 3 interrupt");\r |
84 | CD(0x70, "", "Level 4/Horizontal interrupt");\r |
85 | CD(0x74, "", "Level 5 interrupt");\r |
86 | CD(0x78, "", "Level 6/Vertical interrupt");\r |
87 | CD(0x7C,"", "Level 7 interrupt");\r |
88 | \r |
89 | i=0x80;\r |
90 | while (i <= 0xBC){\r |
91 | CD(i,"", "Trap");\r |
92 | i = i+1;\r |
93 | }\r |
94 | \r |
95 | i=0xC0;\r |
96 | while (i <= 0xFF){\r |
97 | CD(i,"", "Reserved");\r |
98 | i = i+1;\r |
99 | }\r |
100 | \r |
101 | for ( i=0x08; i< 0x200; i=i+4 ) {\r |
102 | addr = Dword( i );\r |
103 | MakeCode(addr);\r |
104 | }\r |
105 | }\r |
106 | \r |
107 | static mdHeader( ) {\r |
108 | auto addr;\r |
109 | \r |
110 | addr = Dword( 0x04 );\r |
111 | if (addr < 0x200)\r |
112 | {\r |
113 | Warning("Start address unusual");\r |
114 | return;\r |
115 | }\r |
116 | CS(0x100,0x110,"","");\r |
117 | CS(0x110,0x120,"","");\r |
118 | CS(0x120,0x130,"","");\r |
119 | CS(0x130,0x140,"","");\r |
120 | CS(0x140,0x150,"","");\r |
121 | CS(0x150,0x160,"","");\r |
122 | CS(0x160,0x170,"","");\r |
123 | CS(0x170,0x180,"","");\r |
124 | CS(0x180,0x18D,"","Serial Number");\r |
125 | CW(0x18E, "CheckSum","");\r |
126 | CS(0x190,0x1A0,"","");\r |
127 | CD(0x1A0, "RomStartAdr", "Rom Start Adress");\r |
128 | CD(0x1A4, "RomEndAdr", "Rom End Adress");\r |
129 | CD(0x1A8, "RamStartAdr", "Ram Start Adress");\r |
130 | CD(0x1AC, "RamEndAdr", "Ram End Adress");\r |
131 | CS(0x1B0, 0x1BC, "", "SRam data");\r |
132 | CS(0x1BC, 0x1C8, "", "Modem data");\r |
133 | CS(0x1C8, 0x1DC, "", "Memo");\r |
134 | CS(0x1DC, 0x1F0, "", "");\r |
135 | CS(0x1F0, 0x200, "Country", "Countries codes");\r |
136 | }\r |
137 | \r |
138 | static mdAddress( ){\r |
139 | CD(0xC00000, "VDP_Data","");\r |
140 | CD(0xC00004, "VDP_Control",""); \r |
141 | CD(0xC00008, "HV_Counter",""); \r |
142 | CB(0xC00011, "PSG",""); \r |
143 | \r |
144 | CW(0xA10001, "HW_Info","7-MODE (R) 0: Domestic Model\n"\r |
145 | " 1: Overseas Model\n"\r |
146 | "6-VMOD (R) 0: NTSC CPU clock 7.67 MHz\n"\r |
147 | " 1: PAL CPU clock 7.60 MHz\n"\r |
148 | "5-DISK (R) 0: FDD unit connected\n"\r |
149 | " 1: FDD unit not connected\n"\r |
150 | "4-RSV (R) Currently not used\n"\r |
151 | "3-0 VER (R) MEGA DRIVE version ($0 to $F)");\r |
152 | \r |
153 | CW(0xA10003,"DATA1", "PD7 (RW)\n"\r |
154 | "PD6 (RW) TH\n"\r |
155 | "PD5 (RW) TR\n"\r |
156 | "PD4 (RW) TL\n"\r |
157 | "PD3 (RW) RIGHT\n"\r |
158 | "PD2 (RW) LEFT\n"\r |
159 | "PD1 (RW) DOWN\n"\r |
160 | "PDO (RW) UP\n" );\r |
161 | CW(0xA10005,"DATA2","");\r |
162 | CW(0xA10007,"DATA3","");\r |
163 | CW(0xA10009,"CTRL1", "INT (RW) 0: TH-INT PROHIBITED\n"\r |
164 | " 1: TH-INT ALLOWED\n"\r |
165 | "PC6 (RW) 0: PD6 INPUT MODE\n"\r |
166 | " 1: OUTPUT MODE\n"\r |
167 | "PC5 (RW) 0: PD5 INPUT MODE\n"\r |
168 | " 1: OUTPUT MODE\n"\r |
169 | "PC4 (RW) 0: PD4 INPUT MODE\n"\r |
170 | " 1: OUTPUT MODE\n"\r |
171 | "PC3 (RW) 0: PD3 INPUT MODE\n"\r |
172 | " 1: OUTPUT MODE\n"\r |
173 | "PC2 (RW) 0: PD2 INPUT MODE\n"\r |
174 | " 1: OUTPUT MODE\n"\r |
175 | "PC1 (RW) 0: PD1 INPUT MODE\n"\r |
176 | " 1: OUTPUT MODE\n"\r |
177 | "PCO (RW) 0: PDO INPUT MODE\n"\r |
178 | " 1: OUTPUT MODE");\r |
179 | CW(0xA1000B,"CTRL2","");\r |
180 | CW(0xA1000D,"CTRL3","");\r |
181 | CW(0xA1000F,"TxDATA1","");\r |
182 | CW(0xA10011,"RxDATA1","");\r |
183 | CW(0xA10013,"SCTRL1","");\r |
184 | CW(0xA10015,"TxDATA2","");\r |
185 | CW(0xA10017,"RxDATA2","");\r |
186 | CW(0xA10019,"SCTRL2","");\r |
187 | CW(0xA1001B,"TxDATA3","");\r |
188 | CW(0xA1001D,"RxDATA3","");\r |
189 | CW(0xA1001F,"SCTRL3","");\r |
190 | \r |
191 | CW(0xA11000,"MemMode", "D8 ( W) 0: ROM MODE\n"\r |
192 | " 1: D-RAM MODE");\r |
193 | \r |
194 | CW(0xA11100,"Z80BusReq","D8 ( W) 0: BUSREQ CANCEL\n"\r |
195 | " 1: BUSREQ REQUEST\n"\r |
196 | " ( R) 0: CPU FUNCTION STOP ACCESSIBLE\n"\r |
197 | " 1: FUNCTIONING");\r |
198 | CW(0xA11200,"Z80BusReset","D8 ( W) 0: RESET REQUEST\n"\r |
199 | " 1: RESET CANCEL"); \r |
200 | }\r |
201 | \r |
202 | //-------------------------------------------------------------------------\r |
203 | static main() {\r |
204 | auto addr;\r |
205 | \r |
206 | SetPrcsr( "68000");\r |
207 | \r |
208 | SegCreate(0x000000,0x3FFFFF,0,1,0,2);\r |
209 | SegRename(0x000000,"ROM");\r |
210 | \r |
211 | SegCreate(0xA00000,0xA0FFFF,0,1,0,2);\r |
212 | SegRename(0xA00000,"Z80");\r |
213 | \r |
214 | SegCreate(0xA10000,0xA10FFF,0,1,0,2);\r |
215 | SegRename(0xA10000,"IO");\r |
216 | \r |
217 | SegCreate(0xA11000,0xA11FFF,0,1,0,2);\r |
218 | SegRename(0xA11000,"Control");\r |
219 | \r |
220 | SegCreate(0xC00000,0xDFFFFF,0,1,0,2);\r |
221 | SegRename(0xC00000,"VDP");\r |
222 | \r |
223 | SegCreate(0xFF0000,0xFFFFFF,0,1,0,2);\r |
224 | SegRename(0xFF0000,"RAM");\r |
225 | \r |
226 | mdVector( );\r |
227 | mdHeader( );\r |
228 | mdAddress( );\r |
229 | \r |
230 | addr = Dword( 0x04 );\r |
231 | MakeName(addr,"main");\r |
232 | //MakeCode(addr);\r |
233 | MakeFunction(addr,BADADDR);\r |
234 | Wait( );\r |
235 | \r |
236 | addr = Dword( 0x68 );\r |
237 | MakeName(addr,"EInt");\r |
238 | //MakeCode(addr);\r |
239 | MakeFunction(addr,BADADDR);\r |
240 | Wait( ); \r |
241 | \r |
242 | addr = Dword( 0x70 );\r |
243 | MakeName(addr,"HInt");\r |
244 | //MakeCode(addr);\r |
245 | MakeFunction(addr,BADADDR);\r |
246 | Wait( ); \r |
247 | \r |
248 | addr = Dword( 0x78 );\r |
249 | MakeName(addr,"VInt");\r |
250 | //MakeCode(addr);\r |
251 | MakeFunction(addr,BADADDR);\r |
252 | Wait( ); \r |
253 | }\r |