miscemu/int2f.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "registers.h"
   4 #include "wine.h"
   5 #include "stddebug.h"
   6 /* #define DEBUG_INT */
   7 /* #undef  DEBUG_INT */
   8 #include "debug.h"
   9
  10 void IntBarf(int i, struct sigcontext_struct *context);
  11 int do_int2f_16(struct sigcontext_struct *context);
  12
  13 int do_int2f(struct sigcontext_struct *context)
  14 {
  15         switch((context->sc_eax >> 8) & 0xff)
  16         {
  17         case 0x10: /* share is installed */
  18                 EAX = (EAX & 0xffffff00) | 0xff;
  19                 break;
  20
  21         case 0x15: /* mscdex */
  22                 /* ignore requests */
  23                 return 1;
  24
  25         case 0x16:
  26                 return do_int2f_16(context);
  27
  28         default:
  29                 IntBarf(0x2f, context);
  30         };
  31         return 1;
  32 }
  33
  34
  35 int do_int2f_16(struct sigcontext_struct *context)
  36 {
  37         switch(context->sc_eax & 0xff) {
  38                 case 0x00:
  39                         /* return 'major/minor' for MSWin 3.1 */
  40                         dprintf_int(stddeb,"do_int2f_16 // return 'major/minor' for MSWin 3.1 !\n");
  41                         context->sc_eax = 0x0310;
  42                         return 1;
  43                 case 0x86:
  44                         /* operating in protected mode under DPMI */
  45                         dprintf_int(stddeb,"do_int2f_16 // operating in protected mode under DPMI !\n");
  46                         context->sc_eax = 0x0000;
  47                         return 1;
  48                 case 0x87:
  49                         dprintf_int(stddeb,"do_int2f_16 // return DPMI flags !\n");
  50                         context->sc_eax = 0x0000;               /* DPMI Installed */
  51                         context->sc_ebx = 0x0001;               /* 32bits available */
  52                         context->sc_ecx = 0x04;                 /* processor 486 */
  53                         context->sc_edx = 0x0100;               /* DPMI major/minor */
  54                         context->sc_esi = 0;                    /* # of para. of DOS */
  55                                                                                         /* extended private data */
  56                         return 1;
  57                 default:
  58                         IntBarf(0x2f, context);
  59                 }
  60         return 1;
  61 }
  62
  63