megaed-stop/sega_gcc.s

   1     dc.l     0, 0x200, exc__, exc__, exc__, exc__, exc__, exc__\r
   2     dc.l exc__, exc__, exc__, exc__, exc__, exc__, exc__, exc__\r
   3     dc.l exc__, exc__, exc__, exc__, exc__, exc__, exc__, exc__\r
   4     dc.l exc__, exc__, exc__, exc__, HBL,   exc__, VBL,   exc__\r
   5     dc.l exc__, exc__, exc__, exc__, exc__, exc__, exc__, exc__\r
   6     dc.l exc__, exc__, exc__, exc__, exc__, exc__, exc__, exc__\r
   7     dc.l exc__, exc__, exc__, exc__, exc__, exc__, exc__, exc__\r
   8     dc.l exc__, exc__, exc__, exc__, exc__, exc__, exc__, exc__\r
   9 \r
  10     .ascii "SEGA EVERDRIVE                  "\r
  11     .ascii "MEGA-ED SDRAM vs STOP                           "\r
  12     .ascii "MEGA-ED SDRAM vs STOP                           "\r
  13     .ascii "GM 00000000-00"\r
  14     .byte 0x00,0x00\r
  15     .ascii "JD              "\r
  16     .byte 0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00\r
  17     .byte 0x00,0xff,0x00,0x00,0xff,0xff,0xff,0xff\r
  18     .ascii "               "\r
  19     .ascii "                        "\r
  20     .ascii "                         "\r
  21     .ascii "JUE             "\r
  22 \r
  23 RST:\r
  24         move.w #0x2700, %sr\r
  25 /* magic ED app init */\r
  26         move.w #0x0000, (0xA13006)\r
  27         jmp init_ed.l\r
  28 init_ed:\r
  29         move.w #0x210f, (0xA13006)\r
  30     move.l #HBL, (0x70)\r
  31     move.l #VBL, (0x78)\r
  32 \r
  33         moveq   #0, %d0\r
  34         movea.l %d0, %a7\r
  35         move    %a7, %usp\r
  36         bra     main\r
  37 \r
  38 HBL:\r
  39 VBL:\r
  40 exc__:\r
  41         rte\r
  42 \r
  43 # vim:filetype=asmM68k:ts=4:sw=4:expandtab\r