| 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/gfx interrupt");\r |
| 82 | CD(0x68, "", "Level 2/md interrupt");\r |
| 83 | CD(0x6C, "", "Level 3/timer interrupt");\r |
| 84 | CD(0x70, "", "Level 4/cdd interrupt");\r |
| 85 | CD(0x74, "", "Level 5/cdc interrupt");\r |
| 86 | CD(0x78, "", "Level 6/subcode 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 | }\r |
| 141 | \r |
| 142 | //-------------------------------------------------------------------------\r |
| 143 | static MakeIrq(addr,name) {\r |
| 144 | MakeName(addr,name);\r |
| 145 | //MakeCode(addr);\r |
| 146 | MakeFunction(addr,BADADDR);\r |
| 147 | Wait( );\r |
| 148 | }\r |
| 149 | \r |
| 150 | static main() {\r |
| 151 | auto addr;\r |
| 152 | \r |
| 153 | SetPrcsr( "68000");\r |
| 154 | \r |
| 155 | SegCreate(0x000000,0x07FFFF,0,1,0,2);\r |
| 156 | SegRename(0x000000,"prg_ram");\r |
| 157 | \r |
| 158 | SegCreate(0xFE0000,0xFE3FFF,0,1,0,2);\r |
| 159 | SegRename(0xFE0000,"bram");\r |
| 160 | \r |
| 161 | SegCreate(0xFF0000,0xFF3FFF,0,1,0,2);\r |
| 162 | SegRename(0xFF0000,"pcm");\r |
| 163 | \r |
| 164 | SegCreate(0xFF8000,0xFF81FF,0,1,0,2);\r |
| 165 | SegRename(0xFF8000,"regs");\r |
| 166 | \r |
| 167 | mdVector( );\r |
| 168 | mdHeader( );\r |
| 169 | mdAddress( );\r |
| 170 | \r |
| 171 | MakeIrq(Dword(0x04), "main");\r |
| 172 | MakeIrq(Dword(0x64), "gfx_irq");\r |
| 173 | MakeIrq(Dword(0x68), "md_irq");\r |
| 174 | MakeIrq(Dword(0x6c), "timer_irq");\r |
| 175 | MakeIrq(Dword(0x70), "cdd_irq");\r |
| 176 | MakeIrq(Dword(0x74), "cdc_irq");\r |
| 177 | MakeIrq(Dword(0x78), "subcode_irq");\r |
| 178 | }\r |