tryos/tryos_test/pinoc_x86/test/PINoC/boot/src/bootld.cpp

   1 #include "../../../common/typedef.h"
   2 #include "../head/lowCall16.h"
   3 #include "../head/segment_descriptor.h"
   4 #include "../head/realmode.h"
   5
   6
   7 vo waitkeybord();
   8 vo io_A20GATE();
   9 vo io_PROTECTMODE();
  10
  11 /*******************************************************************************
  12                 メイン関数
  13  *******************************************************************************/
  14 vo main16()
  15 {
  16         lowcall16 low16;
  17
  18
  19
  20 #if DEBUG
  21         low16.io_debug16();
  22 #endif
  23
  24         // VBEへ
  25         if(low16.vbe_mode())
  26                 low16.vga_mode();
  27
  28
  29         // メモリの使用可能領域を2^32まで拡張
  30         io_A20GATE();
  31
  32 //      RGB color;
  33 //      color.B = 0xFF;
  34 //      color.G = 0xCC;
  35 //      color.R = 0xCC;
  36 //
  37 //      RGB color2;
  38 //      color2.B = 0x99;
  39 //      color2.G = 0x99;
  40 //      color2.R = 0x99;
  41 //
  42 //      RGB color3;
  43 //      color3.B = 0x66;
  44 //      color3.G = 0x66;
  45 //      color3.R = 0x66;
  46 //
  47 //      // 1024x768     24bit/32bit
  48 //      io_RGBwrite16(1024, 768, 0, 0, color);
  49 //      io_RGBwrite16(1024, 1, 0, 768 - 27, color3);
  50 //      io_RGBwrite16(1024, 26, 0, 768 - 26, color2);
  51 //      io_RGBwrite16(64, 22, 2, 768 - 26 + 1, color3);
  52
  53         // ジャンプ先にHLTLOOPを設定
  54         *(u1*)0x6500 = (u1)0xf4;
  55         *(u2*)0x6501 = (u2)0xfdeb;
  56
  57         *(u1*)0x6000 = (u1)0xf4;
  58         *(u2*)0x6001 = (u2)0xfdeb;
  59
  60         *(u8*)0x9008 = (u8)0x00cf9a006000FFFF;
  61         *(u8*)0x9010 = (u8)0x00cf9a006500FFFF;
  62
  63         // GDTRとIDTRの設定をします。  -> 6byte
  64         segment_descriptor sd;
  65         sd.LGDT16(0x00FF, 0x00009000);
  66         sd.LIDT16(0x00FF, 0x00008500);
  67
  68
  69         /*--------------------------------------------------------------------------------
  70                         パイプラインフラッシュの後、スタックを設定し、main32()へjmpします
  71          --------------------------------------------------------------------------------*/
  72         io_PROTECTMODE();
  73
  74 }
  75 #include "../head/32mode.hpp"
  76
  77