miscemu/int13.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "msdos.h"
   4 #include "wine.h"
   5
   6 int do_int13(struct sigcontext_struct *context)
   7 {
   8         switch((context->sc_eax >> 8) & 0xff)
   9         {
  10         case 0x00:                            /* RESET DISK SYSTEM     */
  11         case 0x04:                            /* VERIFY DISK SECTOR(S) */
  12                 EAX = (EAX & 0xffff00ff);
  13                 break;
  14
  15         case 0x05:                                     /* FORMAT TRACK */
  16                 EAX = (EAX & 0xffff00ff) | 0x0c;
  17                 SetCflag;
  18                 break;
  19
  20         case 0x06:             /* FORMAT TRACK AND SET BAD SECTOR FLAGS */
  21         case 0x07:             /* FORMAT DRIVE STARTING AT GIVEN TRACK  */
  22                 EAX = (EAX & 0xffff00ff) | 0x0c;
  23                 break;
  24
  25         case 0x08:                              /* GET DRIVE PARAMETERS  */
  26                 EAX = (EAX & 0xffff00ff) | ((EDX & 0x00000080)? 0x07: 0x01);
  27                 SetCflag;
  28                 break;
  29
  30         case 0x09:         /* INITIALIZE CONTROLLER WITH DRIVE PARAMETERS */
  31         case 0x0c:         /* SEEK TO CYLINDER                            */
  32         case 0x0d:         /* RESET HARD DISKS                            */
  33         case 0x10:         /* CHECK IF DRIVE READY                        */
  34         case 0x11:         /* RECALIBRATE DRIVE                           */
  35         case 0x14:         /* CONTROLLER INTERNAL DIAGNOSTIC              */
  36                 EAX = (EAX & 0xffff00ff);
  37                 break;
  38
  39         case 0x0e:                    /* READ SECTOR BUFFER (XT only)      */
  40         case 0x0f:                    /* WRITE SECTOR BUFFER (XT only)     */
  41         case 0x12:                    /* CONTROLLER RAM DIAGNOSTIC (XT,PS) */
  42         case 0x13:                    /* DRIVE DIAGNOSTIC (XT,PS)          */
  43                 EAX = (EAX & 0xffff00ff) | 0x01;
  44                 SetCflag;
  45                 break;
  46
  47
  48
  49
  50         default:
  51                 IntBarf(0x13, context);
  52         };
  53         return 1;
  54 }