miscemu/int13.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
  12 int do_int13(struct sigcontext_struct *context)
  13 {
  14         switch(AH) {
  15         case 0x00:                            /* RESET DISK SYSTEM     */
  16         case 0x04:                            /* VERIFY DISK SECTOR(S) */
  17                 AH = 0;
  18                 break;
  19
  20         case 0x05:                                     /* FORMAT TRACK */
  21                 AH = 0x0c;
  22                 SetCflag;
  23                 break;
  24
  25         case 0x06:             /* FORMAT TRACK AND SET BAD SECTOR FLAGS */
  26         case 0x07:             /* FORMAT DRIVE STARTING AT GIVEN TRACK  */
  27                 AH = 0x0c;
  28                 break;
  29
  30         case 0x08:                              /* GET DRIVE PARAMETERS  */
  31                 AH = (DL & 0x80) ? 0x07 : 0x01;
  32                 SetCflag;
  33                 break;
  34
  35         case 0x09:         /* INITIALIZE CONTROLLER WITH DRIVE PARAMETERS */
  36         case 0x0c:         /* SEEK TO CYLINDER                            */
  37         case 0x0d:         /* RESET HARD DISKS                            */
  38         case 0x10:         /* CHECK IF DRIVE READY                        */
  39         case 0x11:         /* RECALIBRATE DRIVE                           */
  40         case 0x14:         /* CONTROLLER INTERNAL DIAGNOSTIC              */
  41                 AH = 0;
  42                 break;
  43
  44         case 0x0e:                    /* READ SECTOR BUFFER (XT only)      */
  45         case 0x0f:                    /* WRITE SECTOR BUFFER (XT only)     */
  46         case 0x12:                    /* CONTROLLER RAM DIAGNOSTIC (XT,PS) */
  47         case 0x13:                    /* DRIVE DIAGNOSTIC (XT,PS)          */
  48                 AH = 0x01;
  49                 SetCflag;
  50                 break;
  51
  52         default:
  53                 IntBarf(0x13, context);
  54         };
  55         return 1;
  56 }