miscemu/int2f.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "registers.h"
   4 #include "wine.h"
   5 #include "msdos.h"
   6 #include "miscemu.h"
   7 #include "options.h"
   8 #include "stddebug.h"
   9 /* #define DEBUG_INT */
  10 #include "debug.h"
  11
  12 int do_int2f_16(struct sigcontext_struct *context);
  13
  14 int do_int2f(struct sigcontext_struct *context)
  15 {
  16         dprintf_int(stddeb,"int2f: AX %04x, BX %04x, CX %04x, DX %04x, "
  17                "SI %04x, DI %04x, DS %04x, ES %04x\n",
  18                AX, BX, CX, DX, SI, DI, DS, ES);
  19
  20         switch(AH)
  21         {
  22         case 0x10:
  23                 AL = 0xff; /* share is installed */
  24                 break;
  25
  26         case 0x15: /* mscdex */
  27                 /* ignore requests */
  28                 return 1;
  29
  30         case 0x16:
  31                 return do_int2f_16(context);
  32
  33         default:
  34                 IntBarf(0x2f, context);
  35         };
  36         return 1;
  37 }
  38
  39
  40 int do_int2f_16(struct sigcontext_struct *context)
  41 {
  42     switch(AL)
  43     {
  44     case 0x00:  /* Windows enhanced mode installation check */
  45         AX = Options.enhanced ? WINVERSION : 0;
  46         break;
  47
  48     case 0x0a:  /* Get Windows version and type */
  49         AX = 0;
  50         BX = (WINVERSION >> 8) | ((WINVERSION << 8) & 0xff00);
  51         CX = Options.enhanced ? 3 : 2;
  52         break;
  53
  54     case 0x86:  /* DPMI detect mode */
  55         AX = 0;  /* Running under DPMI */
  56         break;
  57
  58     case 0x87:  /* DPMI installation check */
  59         AX = 0x0000;  /* DPMI Installed */
  60         BX = 0x0001;  /* 32bits available */
  61         CX = 0x04;    /* processor 486 */
  62         DX = 0x0009;  /* DPMI major/minor 0.9 */
  63         SI = 0;       /* # of para. of DOS extended private data */
  64         ES = 0;       /* ES:DI is DPMI switch entry point */
  65         DI = 0;
  66         break;
  67
  68     default:
  69         IntBarf(0x2f, context);
  70     }
  71     return 1;
  72 }
  73
  74