From 3c9d9182ebf8301a772909c3deb8ab3e68e10c0d Mon Sep 17 00:00:00 2001
From: Jukka Heinonen <jhei@iki.fi>
Date: Mon, 4 Nov 2002 22:35:36 +0000
Subject: [PATCH] Ignore VCPI installation checks. Handle XMS query any
 extended memory function. Add stubs for get/set exception handler vector.

---
 dlls/winedos/int31.c | 29 ++++++++++++++++++++++++++++-
 dlls/winedos/int67.c | 15 +++++++++++++++
 dlls/winedos/xms.c   | 18 ++++++++++++++++++
 3 files changed, 61 insertions(+), 1 deletion(-)

diff --git a/dlls/winedos/int31.c b/dlls/winedos/int31.c
index 75fab2a9310..1be16cc969c 100644
--- a/dlls/winedos/int31.c
+++ b/dlls/winedos/int31.c
@@ -438,7 +438,8 @@ static void StartPM( CONTEXT86 *context )
     pm_ctx.SegFs = 0;
     pm_ctx.SegGs = 0;
 
-    TRACE("DOS program is now entering protected mode\n");
+    TRACE("DOS program is now entering %d-bit protected mode\n", 
+          DOSVM_IsDos32() ? 32 : 16);
     wine_call_to_16_regs_short(&pm_ctx, 0);
 
     /* in the current state of affairs, we won't ever actually return here... */
@@ -677,6 +678,32 @@ void WINAPI DOSVM_Int31Handler( CONTEXT86 *context )
     RESET_CFLAG(context);
     switch(AX_reg(context))
     {
+    case 0x0008:  /* Set selector limit */
+        {
+           DWORD limit = MAKELONG( DX_reg(context), CX_reg(context) );
+           TRACE( "set selector limit (0x%04x,0x%08lx)\n",
+                  BX_reg(context), limit );
+           SetSelectorLimit16( BX_reg(context), limit );
+       }
+        break;
+
+    case 0x0202:  /* Get Processor Exception Handler Vector */
+        FIXME( "Get Processor Exception Handler Vector (0x%02x)\n",
+               BL_reg(context) );
+        if (DOSVM_IsDos32()) {
+            SET_CX( context, 0 );
+            context->Edx = 0;
+        } else {
+            SET_CX( context, 0 );
+            SET_DX( context, 0 );
+        }
+        break;
+
+    case 0x0203:  /* Set Processor Exception Handler Vector */
+         FIXME( "Set Processor Exception Handler Vector (0x%02x)\n",
+               BL_reg(context) );
+         break;
+
     case 0x0204:  /* Get protected mode interrupt vector */
         TRACE("get protected mode interrupt handler (0x%02x)\n",
              BL_reg(context));
diff --git a/dlls/winedos/int67.c b/dlls/winedos/int67.c
index d4b51e0b059..c14158e71b3 100644
--- a/dlls/winedos/int67.c
+++ b/dlls/winedos/int67.c
@@ -436,6 +436,21 @@ void WINAPI DOSVM_Int67Handler( CONTEXT86 *context )
   case 0x5b: /* EMS 4.0 - ALTERNATE MAP REGISTER SET */
   case 0x5c: /* EMS 4.0 - PREPARE EXPANDED MEMORY HARDWARE FOR WARM BOOT */
   case 0x5d: /* EMS 4.0 - ENABLE/DISABLE OS FUNCTION SET FUNCTIONS */
+    INT_BARF(context,0x67);
+    break;
+
+  case 0xde: /* Virtual Control Program Interface (VCPI) */
+    if(AL_reg(context) == 0x00) {
+      /*
+       * VCPI INSTALLATION CHECK
+       * (AH_reg() != 0) means VCPI is not present
+       */
+      TRACE("- VCPI installation check\n");
+      return;
+    } else
+      INT_BARF(context,0x67);
+    break;
+
   default:
     INT_BARF(context,0x67);
   }
diff --git a/dlls/winedos/xms.c b/dlls/winedos/xms.c
index 74049404052..b9ce65f7158 100644
--- a/dlls/winedos/xms.c
+++ b/dlls/winedos/xms.c
@@ -104,6 +104,24 @@ void WINAPI XMS_Handler( CONTEXT86 *context )
 	if (move->Dest.Handle) GlobalUnlock16(move->Dest.Handle);
 	break;
     }
+    case 0x88:   /* Query Any Free Extended Memory */
+    {
+        MEMORYSTATUS status;
+        SYSTEM_INFO  info;
+
+        TRACE("query any free extended memory\n");
+
+        GlobalMemoryStatus( &status );
+        GetSystemInfo( &info );
+        context->Eax = status.dwAvailVirtual >> 10;
+        context->Edx = status.dwAvailVirtual >> 10;
+        context->Ecx = (DWORD)info.lpMaximumApplicationAddress;
+        SET_BL( context, 0 ); /* No errors. */
+
+        TRACE("returning largest %ldK, total %ldK, highest 0x%lx\n", 
+              context->Eax, context->Edx, context->Ecx);
+    }
+    break;
     default:
         INT_BARF( context, 0x31 );
         SET_AX( context, 0x0000 ); /* failure */