1 files changed, 249 insertions, 0 deletions

diff --git a/private/mvdm/softpc.new/host/src/nt_inthk.c b/private/mvdm/softpc.new/host/src/nt_inthk.c
new file mode 100644
index 000000000..a6e723212
--- /dev/null
+++ b/private/mvdm/softpc.new/host/src/nt_inthk.c
@@ -0,0 +1,249 @@
+/*[
+ *
+ *  Name:	    nt_inthk.c
+ *
+ *  Derived From:   (original)
+ *
+ *  Author:	    Dave Bartlett
+ *
+ *  Created On:     11 Jan 1995
+ *
+ *  Coding Stds:    2.4
+ *
+ *  Purpose:        This module implements the memory management functions
+ *                  required for 486 NT.
+ *
+ *  Include File:   nt_inthk.h
+ *
+ *  Copyright Insignia Solutions Ltd., 1994. All rights reserved.
+ *
+]*/
+
+
+#ifdef CPU_40_STYLE
+
+/* Need all of the following to include nt.h and windows.h in the same file. */
+#include <nt.h>
+#include <ntrtl.h>
+#include <nturtl.h>
+#include <windows.h>
+
+#include "insignia.h"
+#include "host_def.h"
+
+#include "gdpvar.h"
+#include "nt_inthk.h"
+#include "debug.h"
+
+/* Make local symbols visible if debugging. */
+#ifndef PROD
+#define LOCAL
+#endif /* not PROD */
+
+/* Macros and typedefs. */
+
+
+/* Hardware interrupt handler */
+LOCAL BOOL (*HWIntHandler)(ULONG) = NULL;
+
+#if defined(CCPU) || !defined(PROD)
+/* Software interrupt handler */
+LOCAL BOOL (*SWIntHandler)(ULONG) = NULL;
+
+/* Exception interrupt handler */
+LOCAL BOOL (*EXIntHandler)(ULONG,ULONG) = NULL;
+
+#endif /* CCPU */
+
+/* Global Functions. */
+
+/*(
+============================= host_hwint_hook =================================
+PURPOSE:
+	This function is called from the ICA during the process of ACKing an
+	hardware interrupt. This function will call a hardware interrupt handler
+	if one is defined.
+
+INPUT:
+	Interrupt vector number generated from hardware interrupt
+OUTPUT:
+	Return value - TRUE    hardware interrupt processed
+		       FALSE   process hardware interrupt in normal way
+================================================================================
+)*/
+
+
+#if defined(CCPU) || !defined(PROD)
+GLOBAL BOOL host_hwint_hook IFN1(IS32, int_no)
+{
+    BOOL returnStatus = FALSE;
+
+    /* hardware interrupt handler defined ? */
+    if(HWIntHandler)
+    {
+	returnStatus = (HWIntHandler)((ULONG) int_no);
+
+#ifndef PROD
+	if(!returnStatus)
+	    always_trace0("Hardware interrupt handler failed");
+
+#endif /* PROD */
+    }
+
+    return( returnStatus );
+}
+#endif
+
+/*(
+======================= VdmInstallHardwareIntHandler ===========================
+PURPOSE:
+	Register a hardware interrupt handler called before the CPU dispatches
+	the interrupt.
+
+INPUT:
+	Hardware interrupt handler function
+
+OUTPUT:
+	Return value - NTSTATUS
+
+================================================================================
+)*/
+
+GLOBAL NTSTATUS	VdmInstallHardwareIntHandler IFN1(PVOID, HardwareIntHandler)
+{
+#ifdef CCPU
+    HWIntHandler = HardwareIntHandler;
+#else
+    GLOBAL_VDM_HwIntHandler = HardwareIntHandler;
+#endif
+    return(STATUS_SUCCESS);
+}
+
+/*(
+============================= host_swint_hook =================================
+PURPOSE:
+	This function is called from the CCPU prior to provessing a software
+	interrupt. This function will call a software interrupt handler
+	if one is defined.
+
+INPUT:
+	Interrupt number
+OUTPUT:
+	Return value - TRUE    software interrupt processed
+		       FALSE   process software interrupt in normal way
+
+================================================================================
+)*/
+
+
+#if defined(CCPU) || !defined(PROD)
+GLOBAL BOOL host_swint_hook IFN1(IS32, int_no)
+{
+    BOOL returnStatus = FALSE;
+
+    /* software interrupt handler defined ? */
+    if(SWIntHandler)
+    {
+	returnStatus = (SWIntHandler)((ULONG) int_no);
+
+#ifndef PROD
+
+	if(!returnStatus)
+	    always_trace0("Software interrupt handler failed");
+
+#endif /* PROD */
+    }
+
+    return( returnStatus );
+}
+#endif /* CCPU */
+
+/*(
+======================= VdmInstallSoftwareIntHandler ===========================
+PURPOSE:
+	Register a software interrupt handler called before the CPU dispatches
+	the software interrupt.
+
+INPUT:
+	Software interrupt handler function
+
+OUTPUT:
+	Return value - NTSTATUS
+================================================================================
+)*/
+
+GLOBAL NTSTATUS	VdmInstallSoftwareIntHandler IFN1(PVOID, SoftwareIntHandler)
+{
+#ifdef CCPU
+    SWIntHandler = SoftwareIntHandler;
+#else
+    GLOBAL_VDM_SoftIntHandler = SoftwareIntHandler;
+#endif
+    return(STATUS_SUCCESS);
+}
+
+/*(
+============================= host_exint_hook =================================
+PURPOSE:
+	This function is called from the CPU prior to processing a CPU
+	exception interrupt. This function will call a exception interrupt
+	handler if one is defined.
+
+INPUT:
+	Exception number
+	Exception error code
+OUTPUT:
+	Return value - TRUE    hardware interrupt processed
+		       FALSE   process hardware interrupt in normal way
+
+================================================================================
+)*/
+
+
+#if defined(CCPU) || !defined(PROD)
+GLOBAL BOOL host_exint_hook IFN2(IS32, exp_no, IS32, error_code)
+{
+    BOOL returnStatus = FALSE;
+
+    /* exception interrupt handler defined ? */
+    if(EXIntHandler)
+    {
+	returnStatus = (EXIntHandler)((ULONG) exp_no, (ULONG) error_code);
+
+#ifndef PROD
+
+	if(!returnStatus)
+	    always_trace0("Exception interrupt handler failed (%x)");
+
+#endif /* PROD */
+    }
+
+    return( returnStatus );
+}
+#endif /* CCPU */
+
+/*(
+======================= VdmInstallFaultHandler ===========================
+PURPOSE:
+	Register a CPU exception interrupt handler called before the CPU
+	dispatches the exceptioninterrupt.
+
+INPUT:
+	Exception interrupt handler function
+
+OUTPUT:
+	Return value - NTSTATUS
+================================================================================
+)*/
+
+GLOBAL NTSTATUS	VdmInstallFaultHandler IFN1(PVOID, FaultHandler)
+{
+#ifdef CCPU
+    EXIntHandler = FaultHandler;
+#else
+    GLOBAL_VDM_FaultHandler = FaultHandler;
+#endif
+    return(STATUS_SUCCESS);
+}
+
+#endif /* CPU_40_STYLE */