miscemu/int13.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "registers.h"
   4 #include "wine.h"
   5 #include "miscemu.h"
   6 #include "stddebug.h"
   7 /* #define DEBUG_INT */
   8 #include "debug.h"
   9
  10 int do_int13(struct sigcontext_struct *context)
  11 {
  12         switch(AH) {
  13         case 0x00:                            /* RESET DISK SYSTEM     */
  14         case 0x04:                            /* VERIFY DISK SECTOR(S) */
  15                 AH = 0;
  16                 break;
  17
  18         case 0x05:                                     /* FORMAT TRACK */
  19                 AH = 0x0c;
  20                 SetCflag;
  21                 break;
  22
  23         case 0x06:             /* FORMAT TRACK AND SET BAD SECTOR FLAGS */
  24         case 0x07:             /* FORMAT DRIVE STARTING AT GIVEN TRACK  */
  25                 AH = 0x0c;
  26                 break;
  27
  28         case 0x08:                              /* GET DRIVE PARAMETERS  */
  29                 AH = (DL & 0x80) ? 0x07 : 0x01;
  30                 SetCflag;
  31                 break;
  32
  33         case 0x09:         /* INITIALIZE CONTROLLER WITH DRIVE PARAMETERS */
  34         case 0x0c:         /* SEEK TO CYLINDER                            */
  35         case 0x0d:         /* RESET HARD DISKS                            */
  36         case 0x10:         /* CHECK IF DRIVE READY                        */
  37         case 0x11:         /* RECALIBRATE DRIVE                           */
  38         case 0x14:         /* CONTROLLER INTERNAL DIAGNOSTIC              */
  39                 AH = 0;
  40                 break;
  41
  42         case 0x0e:                    /* READ SECTOR BUFFER (XT only)      */
  43         case 0x0f:                    /* WRITE SECTOR BUFFER (XT only)     */
  44         case 0x12:                    /* CONTROLLER RAM DIAGNOSTIC (XT,PS) */
  45         case 0x13:                    /* DRIVE DIAGNOSTIC (XT,PS)          */
  46                 AH = 0x01;
  47                 SetCflag;
  48                 break;
  49
  50         default:
  51                 IntBarf(0x13, context);
  52         };
  53         return 1;
  54 }