void SaveOrigVectors( void )
{
rm_data *p;
unsigned i;
unsigned old;
#ifdef FULL_SAVE
for( i = 0; i < INT_VECT_COUNT; ++i ) PMVectSaveList[i]=i;
for( i = 0; i < EXCEPT_COUNT; ++i ) PMExceptSaveList[i]=i;
#endif
old = D32NullPtrCheck( 0 );
/* haven't moved things yet, so PMData isn't set up */
p = (rm_data *)RMDataStart;
for( i = 0; i < NUM_VECTS; ++i ) {
p->orig_vects[i].a = MyGetRMVector( i );
}
D32NullPtrCheck( old );
for( i = 0; i < NUM_PM_SAVE_VECTS; ++i ) {
OrigPMVects[i] = DPMIGetPMInterruptVector( PMVectSaveList[i] );
}
for( i = 0; i < NUM_PM_SAVE_EXCEPTS; ++i ) {
OrigPMExcepts[i] = DPMIGetPMExceptionVector( PMExceptSaveList[i] );
}
memcpy( p->vecttable1, p->orig_vects, sizeof( p->vecttable1 ) );
memcpy( p->vecttable2, p->orig_vects, sizeof( p->vecttable2 ) );
memcpy( SavePMVects, OrigPMVects, sizeof( SavePMVects ) );
memcpy( SavePMExcepts, OrigPMExcepts, sizeof( SavePMExcepts ) );
}
void RestoreOrigVectors(void)
{
unsigned i;
unsigned old;
for( i = 0; i < NUM_PM_SAVE_EXCEPTS; ++i ) {
DPMISetPMExceptionVector( PMExceptSaveList[i], OrigPMExcepts[i] );
}
for( i = 0; i < NUM_PM_SAVE_VECTS; ++i ) {
DPMISetPMInterruptVector( PMVectSaveList[i], OrigPMVects[i] );
}
old = D32NullPtrCheck( 0 );
for( i = 0; i < NUM_VECTS; ++i ) {
MySetRMVector( i, PMData->orig_vects[i].s.segment, PMData->orig_vects[i].s.offset );
}
D32NullPtrCheck( old );
}
/* Returns 0 if successful
*/
static int hook_debug_interrupts( void )
{
int i;
PACKAGE FarPtr package = NULL;
if( my_package_bind( DOS4G_KERNEL_PACKAGE_NAME, DOS4G_DEBUG_HOOK_ENTRY, &package, (ACTION **)&debug_hook ) )
return( 1 );
if( my_package_bind( DOS4G_KERNEL_PACKAGE_NAME, DOS4G_INTCHAIN_ENTRY, &package, (ACTION **)&chain_interrupt ) )
return( 2 );
/* OK to not find this entry point
*/
my_package_bind( DOS4G_KERNEL_PACKAGE_NAME, DOS4G_NULLP_ENTRY, &package, (ACTION **)&D32NullPtrCheck );
if( D32NullPtrCheck != NULL_PTR ) /* Disable NULLP checking for now */
nullp_checks = D32NullPtrCheck( 0 );
for( i = 0; i < sizeof( hook_exceptions ) / sizeof( hook_exceptions[0] ); i++ )
debug_hook( hook_exceptions[i], 1, debug_handler );
for( i = 0; i < sizeof( hook_interrupts ) / sizeof( hook_interrupts[0] ); i++ )
debug_hook( hook_interrupts[i], 0, debug_handler );
/* Hook the hot key interrupt in protected mode and make it pass up.
*/
if( _d16info.miscellaneous & D16misc_AT_compat ) {
debug_hook( hotkey_int, 1, debug_handler );
debug_hook( hotkey_int, 0, debug_handler );
rsi_int_passup( hotkey_int );
}
#ifdef TIMER
if( timer_mult != 0 ) {
debug_hook( INT_TIMER, 0, debug_handler ); /* Hook as interrupt only */
outp( TIMER0, ( 65536 / timer_mult ) & 0xff );
outp( TIMER0, ( 65536 / timer_mult ) >> 8 );
}
