drivers/cli/dos.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <crt0.h>
   5 #include <sys/farptr.h>
   6 #include <go32.h>
   7
   8 #include "dos.h"
   9 #include "dos-joystick.h"
  10 #include "dos-video.h"
  11 #include "dos-sound.h"
  12 #include "../common/args.h"
  13 #include "../common/config.h"
  14
  15 /* _CRT0_FLAG_LOCK_MEMORY might not always result in all memory being locked.
  16    Bummer.  I'll add code to explicitly lock the data touched by the sound
  17    interrupt handler(and the handler itself), if necessary(though that might
  18    be tricky...).  I'll also to cover the data the keyboard
  19    interrupt handler touches.
  20 */
  21
  22 int _crt0_startup_flags = _CRT0_FLAG_FILL_SBRK_MEMORY | _CRT0_FLAG_LOCK_MEMORY | _CRT0_FLAG_USE_DOS_SLASHES;
  23
  24 static int f8bit=0;
  25 int soundo=44100;
  26 int doptions=0;
  27
  28
  29 CFGSTRUCT DriverConfig[]={
  30         NAC("sound",soundo),
  31         AC(doptions),
  32         AC(f8bit),
  33         AC(FCEUDvmode),
  34         NACA("joybmap",joyBMap),
  35         AC(joy),
  36         ENDCFGSTRUCT
  37 };
  38
  39 char *DriverUsage=
  40 "-vmode x        Select video mode(all are 8 bpp).\n\
  41                  1 = 256x240                 6 = 256x224(with scanlines)\n\
  42                  2 = 256x256                 8 = 256x224\n\
  43                  3 = 256x256(with scanlines)\n\
  44 -vsync x        Wait for the screen's vertical retrace before updating the\n\
  45                 screen.  Refer to the documentation for caveats.\n\
  46                  0 = Disabled.\n\
  47                  1 = Enabled.\n\
  48 -sound x        Sound.\n\
  49                  0 = Disabled.\n\
  50                  Otherwise, x = playback rate.\n\
  51 -f8bit x        Force 8-bit sound.\n\
  52                  0 = Disabled.\n\
  53                  1 = Enabled.\n\
  54 -joy x          Joystick mapped to virtual joystick x(1-4).\n\
  55                  0 = Disabled, reset configuration.\n\
  56                  1 = Enabled.";
  57
  58 ARGPSTRUCT DriverArgs[]={
  59          {"-vmode",0,&FCEUDvmode,0},
  60          {"-sound",0,&soundo,0},
  61          {"-f8bit",0,&f8bit,0},
  62          {"-joy",0,&joy,0},
  63          {"-vsync",0,&eoptions,0x8004},
  64          {0,0,0,0}
  65 };
  66
  67 void DoDriverArgs(void)
  68 {
  69         if(!joy) memset(joyBMap,0,4);
  70 }
  71
  72 int InitSound(void)
  73 {
  74  if(soundo)
  75  {
  76   if(soundo==1)
  77    soundo=44100;
  78   soundo=InitSB(soundo,f8bit?0:1);
  79   FCEUI_Sound(soundo);
  80  }
  81  return(soundo?1:0);
  82 }
  83
  84 void WriteSound(int32 *Buffer, int Count, int NoWaiting)
  85 {
  86  WriteSBSound(Buffer,Count,NoWaiting);
  87 }
  88
  89 void KillSound(void)
  90 {
  91  if(soundo)
  92   KillSB();
  93 }
  94
  95 void DOSMemSet(uint32 A, uint8 V, uint32 count)
  96 {
  97  uint32 x;
  98
  99  _farsetsel(_dos_ds);
 100  for(x=0;x<count;x++)
 101   _farnspokeb(A+x,V);
 102 }
 103
 104 static char *arg0;
 105 void GetBaseDirectory(char *BaseDirectory)
 106 {
 107  int x=0;
 108
 109  if(arg0)
 110   for(x=strlen(arg0);x>=0;x--)
 111   {
 112    if(arg0[x]=='/' || arg0[x]=='\\')
 113    {
 114     strncpy(BaseDirectory,arg0,x);
 115     break;
 116    }
 117   }
 118
 119  BaseDirectory[x]=0;
 120 }
 121
 122 int main(int argc, char *argv[])
 123 {
 124         puts("\nStarting FCE Ultra "VERSION_STRING"...\n");
 125         arg0=argv[0];
 126         return(CLImain(argc,argv));
 127 }
 128