Various DPMI fixes and preliminary DPMI raw mode switch handler.

loader/dos/dosvm.c

@@ -389,6 +389,8 @@ int DOSVM_Enter( PCONTEXT context )
 #define CP(x,y) VM86.regs.x = y##_reg(context)
   CV;
 #undef CP
+  if (VM86.regs.eflags & IF_MASK)
+    VM86.regs.eflags |= VIF_MASK;
  } else {
 /* initial setup */
   /* allocate standard DOS handles */

loader/dos/module.c

@@ -537,9 +537,9 @@ void MZ_KillModule( LPDOSTASK lpDosTask )
 #undef DFREE
 
 #if 0
- /* FIXME: this seems to crash */
- if (lpDosTask->dpmi_sel)
-  UnMapLS(PTR_SEG_OFF_TO_SEGPTR(lpDosTask->dpmi_sel,0));
+  /* FIXME: this seems to crash */
+  if (lpDosTask->dpmi_sel)
+    SELECTOR_FreeBlock(lpDosTask->dpmi_sel, 1);
 #endif
 }