Added support for DOS EMS memory.

dlls/winedos/Makefile.in

@@ -21,6 +21,7 @@ C_SRCS = \
 	int29.c \
 	int31.c \
 	int33.c \
+	int67.c \
 	ioports.c \
 	module.c \
 	vga.c \

dlls/winedos/dosexe.h

@@ -92,6 +92,10 @@ extern void WINAPI DOSVM_Int31Handler(CONTEXT86*);
 extern void WINAPI DOSVM_Int33Handler(CONTEXT86*);
 extern void WINAPI DOSVM_Int33Message(UINT,WPARAM,LPARAM);
 
+/* int67.c */
+extern void WINAPI DOSVM_Int67Handler(CONTEXT86*);
+extern void WINAPI EMS_Ioctl_Handler(CONTEXT86*);
+
 /* xms.c */
 extern void WINAPI XMS_Handler(CONTEXT86*);
 

dlls/winedos/dosvm.c

@@ -603,7 +603,13 @@ static const INTPROC real_mode_handlers[] =
     /* 18 */ 0, 0, INT_Int1aHandler, 0, 0, 0, 0, 0,
     /* 20 */ DOSVM_Int20Handler, DOSVM_Int21Handler, 0, 0, 0, INT_Int25Handler, 0, 0,
     /* 28 */ 0, DOSVM_Int29Handler, INT_Int2aHandler, 0, 0, 0, 0, INT_Int2fHandler,
-    /* 30 */ 0, DOSVM_Int31Handler, 0, DOSVM_Int33Handler
+    /* 30 */ 0, DOSVM_Int31Handler, 0, DOSVM_Int33Handler, 0, 0, 0, 0,
+    /* 38 */ 0, 0, 0, 0, 0, 0, 0, 0,
+    /* 40 */ 0, 0, 0, 0, 0, 0, 0, 0,
+    /* 48 */ 0, 0, 0, 0, 0, 0, 0, 0, 
+    /* 50 */ 0, 0, 0, 0, 0, 0, 0, 0,
+    /* 58 */ 0, 0, 0, 0, 0, 0, 0, 0,
+    /* 60 */ 0, 0, 0, 0, 0, 0, 0, DOSVM_Int67Handler
 };
 
 

dlls/winedos/int21.c

@@ -12,10 +12,41 @@
 #include "miscemu.h"
 #include "msdos.h"
 #include "console.h"
+#include "file.h"
 #include "debugtools.h"
 
 DEFAULT_DEBUG_CHANNEL(int21);
 
+void WINAPI DOSVM_Int21Handler_Ioctl( CONTEXT86 *context )
+{
+  const DOS_DEVICE *dev = DOSFS_GetDeviceByHandle(
+      DosFileHandleToWin32Handle(BX_reg(context)) );
+
+  if (dev && !strcasecmp( dev->name, "EMMXXXX0" )) {
+    EMS_Ioctl_Handler(context);
+    return;
+  }
+
+  switch (AL_reg(context))
+  {
+  case 0x0b: /* SET SHARING RETRY COUNT */
+      TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
+           CX_reg(context), DX_reg(context));
+      if (!CX_reg(context))
+      {
+         AX_reg(context) = 1;
+         SET_CFLAG(context);
+         break;
+      }
+      DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
+      if (!DX_reg(context))
+         DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
+      RESET_CFLAG(context);
+      break;
+  default:
+      DOS3Call( context );
+  }
+}
 
 /***********************************************************************
  *           DOSVM_Int21Handler
@@ -114,23 +145,7 @@ void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
         break;
 
     case 0x44: /* IOCTL */
-        switch (AL_reg(context))
-        {
-        case 0x0b:   /* SET SHARING RETRY COUNT */
-            TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
-                  CX_reg(context), DX_reg(context));
-            if (!CX_reg(context))
-            {
-                AX_reg(context) = 1;
-                SET_CFLAG(context);
-                break;
-            }
-            DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
-            if (!DX_reg(context))
-                DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
-            RESET_CFLAG(context);
-            break;
-        }
+        DOSVM_Int21Handler_Ioctl( context );
         break;
 
     case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */

files/dos_fs.c

@@ -78,7 +78,8 @@ static const DOS_DEVICE DOSFS_Devices[] =
     { "COM3",		0x80c0 },
     { "COM4",		0x80c0 },
     { "SCSIMGR$",	0xc0c0 },
-    { "HPSCAN",		0xc0c0 }
+    { "HPSCAN",         0xc0c0 },
+    { "EMMXXXX0",       0x0000 }
 };
 
 #define GET_DRIVE(path) \
@@ -786,7 +787,8 @@ HANDLE DOSFS_OpenDevice( const char *name, DWORD access, DWORD attributes, LPSEC
 			return handle;
 		}
 		if (!strcmp(DOSFS_Devices[i].name,"SCSIMGR$") ||
-                    !strcmp(DOSFS_Devices[i].name,"HPSCAN"))
+                    !strcmp(DOSFS_Devices[i].name,"HPSCAN") ||
+                    !strcmp(DOSFS_Devices[i].name,"EMMXXXX0"))
                 {
                     return FILE_CreateDevice( i, access, sa );
 		}