struct NU_RELEASE_STRUCT
{
    UNSIGNED    nu_logical_unit;            /* Logical unit number      */
    INT         nu_release_info;            /* Additional release info  */
};

struct NU_INPUT_STRUCT
{
    UNSIGNED    nu_logical_unit;            /* Logical unit number      */
    UNSIGNED    nu_offset;                  /* Offset of input          */
    UNSIGNED    nu_request_size;            /* Requested input size     */
    UNSIGNED    nu_actual_size;             /* Actual input size        */
    VOID       *nu_buffer_ptr;              /* Input buffer pointer     */
};

struct NU_OUTPUT_STRUCT
{
    UNSIGNED    nu_logical_unit;            /* Logical unit number      */
    UNSIGNED    nu_offset;                  /* Offset of output         */
    UNSIGNED    nu_request_size;            /* Requested output size    */
    UNSIGNED    nu_actual_size;             /* Actual output size       */
    VOID       *nu_buffer_ptr;              /* Output buffer pointer    */
};

struct NU_STATUS_STRUCT
{
    UNSIGNED    nu_logical_unit;            /* Logical unit number      */
    VOID       *nu_extra_status;            /* Additional status ptr    */
};

struct NU_TERMINATE_STRUCT
{
    UNSIGNED    nu_logical_unit;            /* Logical unit number      */
};


typedef  union NU_REQUEST_INFO_UNION
{
    struct NU_INITIALIZE_STRUCT     nu_initialize;
    struct NU_ASSIGN_STRUCT         nu_assign;
    struct NU_RELEASE_STRUCT        nu_release;
    struct NU_INPUT_STRUCT          nu_input;
    struct NU_OUTPUT_STRUCT         nu_output;
    struct NU_STATUS_STRUCT         nu_status;
    struct NU_TERMINATE_STRUCT      nu_terminate;
} nu_request_info_union;

typedef struct NU_DRIVER_REQUEST_STRUCT
{
    INT                   nu_function;                /* I/O request function     */
    UNSIGNED              nu_timeout;                 /* Timeout on request       */
    STATUS                nu_status;                  /* Status of request        */
    UNSIGNED              nu_supplemental;            /* Supplemental information */
    VOID                 *nu_supplemental_ptr;        /* Supplemental info pointer*/
    nu_request_info_union nu_request_info;
    
} NU_DRIVER_REQUEST;

typedef struct NU_DRIVER_STRUCT
{
    UNSIGNED       words[NU_DRIVER_SIZE];      /* CS_NODE_STRUCT */
    CHAR           nu_driver_name[NU_MAX_NAME];
    VOID          *nu_info_ptr;
    UNSIGNED       nu_driver_id;
    VOID           (*nu_driver_entry)(struct NU_DRIVER_STRUCT *,
                                                NU_DRIVER_REQUEST *);
} NU_DRIVER;


/* Define Nucleus PLUS system interfaces.  */

VOID            Application_Initialize(VOID *first_available_memory);


/* The following area is only applicable to application files and is skipped
   during compilation of Nucleus PLUS source files.  */
#ifndef         NU_SOURCE_FILE

/* Re-map task control functions depending on whether or not error checking
   is specified.  */

#ifdef          NU_NO_ERROR_CHECKING
#define         NU_Create_Task                  TCC_Create_Task
#define         NU_Delete_Task                  TCC_Delete_Task
#define         NU_Reset_Task                   TCC_Reset_Task
#define         NU_Terminate_Task               TCC_Terminate_Task
#define         NU_Resume_Task                  TCC_Resume_Service
#define         NU_Suspend_Task                 TCC_Suspend_Service
#define         NU_Relinquish                   TCC_Relinquish
#define         NU_Sleep                        TCC_Task_Sleep
#define         NU_Change_Priority              TCS_Change_Priority
#define         NU_Change_Preemption            TCS_Change_Preemption
#define         NU_Change_Time_Slice            TCS_Change_Time_Slice
#define         NU_Check_Stack                  TCT_Check_Stack
#define         NU_Current_Task_Pointer         TCC_Current_Task_Pointer
#define         NU_Established_Tasks            TCF_Established_Tasks
#define         NU_Task_Information             TCF_Task_Information
#define         NU_Task_Pointers                TCF_Task_Pointers
#define         NU_Create_Mailbox               MBC_Create_Mailbox
#define         NU_Delete_Mailbox               MBC_Delete_Mailbox
#define         NU_Reset_Mailbox                MBS_Reset_Mailbox
#define         NU_Send_To_Mailbox              MBC_Send_To_Mailbox
#define         NU_Broadcast_To_Mailbox         MBS_Broadcast_To_Mailbox
#define         NU_Receive_From_Mailbox         MBC_Receive_From_Mailbox
#define         NU_Established_Mailboxes        MBF_Established_Mailboxes
#define         NU_Mailbox_Information          MBF_Mailbox_Information
#define         NU_Mailbox_Pointers             MBF_Mailbox_Pointers
#define         NU_Create_Queue                 QUC_Create_Queue
#define         NU_Delete_Queue                 QUC_Delete_Queue
#define         NU_Reset_Queue                  QUS_Reset_Queue
#define         NU_Send_To_Front_Of_Queue       QUS_Send_To_Front_Of_Queue
#define         NU_Send_To_Queue                QUC_Send_To_Queue
#define         NU_Broadcast_To_Queue           QUS_Broadcast_To_Queue
#define         NU_Receive_From_Queue           QUC_Receive_From_Queue
#define         NU_Established_Queues           QUF_Established_Queues
#define         NU_Queue_Information            QUF_Queue_Information
#define         NU_Queue_Pointers               QUF_Queue_Pointers
#define         NU_Create_Pipe                  PIC_Create_Pipe 
#define         NU_Delete_Pipe                  PIC_Delete_Pipe 
#define         NU_Reset_Pipe                   PIS_Reset_Pipe
#define         NU_Send_To_Front_Of_Pipe        PIS_Send_To_Front_Of_Pipe 
#define         NU_Send_To_Pipe                 PIC_Send_To_Pipe 
#define         NU_Broadcast_To_Pipe            PIS_Broadcast_To_Pipe 
#define         NU_Receive_From_Pipe            PIC_Receive_From_Pipe 
#define         NU_Established_Pipes            PIF_Established_Pipes   
#define         NU_Pipe_Information             PIF_Pipe_Information
#define         NU_Pipe_Pointers                PIF_Pipe_Pointers
#define         NU_Create_Semaphore             SMC_Create_Semaphore
#define         NU_Delete_Semaphore             SMC_Delete_Semaphore
#define         NU_Reset_Semaphore              SMS_Reset_Semaphore
#define         NU_Obtain_Semaphore             SMC_Obtain_Semaphore
#define         NU_Release_Semaphore            SMC_Release_Semaphore
#define         NU_Established_Semaphores       SMF_Established_Semaphores
#define         NU_Semaphore_Information        SMF_Semaphore_Information
#define         NU_Semaphore_Pointers           SMF_Semaphore_Pointers
#define         NU_Create_Event_Group           EVC_Create_Event_Group
#define         NU_Delete_Event_Group           EVC_Delete_Event_Group
#define         NU_Set_Events                   EVC_Set_Events
#define         NU_Retrieve_Events              EVC_Retrieve_Events
#define         NU_Established_Event_Groups     EVF_Established_Event_Groups
#define         NU_Event_Group_Information      EVF_Event_Group_Information
#define         NU_Event_Group_Pointers         EVF_Event_Group_Pointers
#define         NU_Create_Partition_Pool        PMC_Create_Partition_Pool
#define         NU_Delete_Partition_Pool        PMC_Delete_Partition_Pool
#define         NU_Allocate_Partition           PMC_Allocate_Partition
#define         NU_Deallocate_Partition         PMC_Deallocate_Partition
#define         NU_Established_Partition_Pools  PMF_Established_Partition_Pools
#define         NU_Partition_Pool_Information   PMF_Partition_Pool_Information
#define         NU_Partition_Pool_Pointers      PMF_Partition_Pool_Pointers
#define         NU_Create_Memory_Pool           DMC_Create_Memory_Pool
#define         NU_Delete_Memory_Pool           DMC_Delete_Memory_Pool
#define         NU_Allocate_Memory              DMC_Allocate_Memory
#define         NU_Deallocate_Memory            DMC_Deallocate_Memory
#define         NU_Established_Memory_Pools     DMF_Established_Memory_Pools
#define         NU_Memory_Pool_Information      DMF_Memory_Pool_Information
#define         NU_Memory_Pool_Pointers         DMF_Memory_Pool_Pointers
#define         NU_Control_Signals              TCS_Control_Signals
#define         NU_Receive_Signals              TCS_Receive_Signals
#define         NU_Register_Signal_Handler      TCS_Register_Signal_Handler
#define         NU_Send_Signals                 TCS_Send_Signals
#define         NU_Setup_Vector                 INT_Setup_Vector
#define         NU_Register_LISR                TCC_Register_LISR
#define         NU_Activate_HISR                TCT_Activate_HISR
#define         NU_Create_HISR                  TCC_Create_HISR
#define         NU_Delete_HISR                  TCC_Delete_HISR
#define         NU_Current_HISR_Pointer         TCC_Current_HISR_Pointer
#define         NU_Established_HISRs            TCF_Established_HISRs
#define         NU_HISR_Pointers                TCF_HISR_Pointers
#define         NU_HISR_Information             TCF_HISR_Information
#define         NU_Protect                      TCT_Protect
#define         NU_Unprotect                    TCT_Unprotect
#define         NU_Control_Interrupts           TCT_Control_Interrupts
#define         NU_Local_Control_Interrupts     TCT_Local_Control_Interrupts
#define         NU_Restore_Interrupts           TCT_Restore_Interrupts
#define         NU_Set_Clock                    TMT_Set_Clock
#define         NU_Retrieve_Clock               TMT_Retrieve_Clock
#define         NU_Create_Timer                 TMS_Create_Timer
#define         NU_Delete_Timer                 TMS_Delete_Timer
#define         NU_Control_Timer                TMS_Control_Timer
#define         NU_Reset_Timer                  TMS_Reset_Timer
#define         NU_Established_Timers           TMF_Established_Timers
#define         NU_Timer_Pointers               TMF_Timer_Pointers
#define         NU_Timer_Information            TMF_Timer_Information
#define         NU_Get_Remaining_Time           TMF_Get_Remaining_Time
#define         NU_Release_Information          RLC_Release_Information
#define         NU_License_Information          LIC_License_Information
#define         NU_Disable_History_Saving       HIC_Disable_History_Saving
#define         NU_Enable_History_Saving        HIC_Enable_History_Saving
#define         NU_Make_History_Entry           HIC_Make_History_Entry_Service
#define         NU_Retrieve_History_Entry       HIC_Retrieve_History_Entry
#define         NU_Create_Driver                IOC_Create_Driver
#define         NU_Delete_Driver                IOC_Delete_Driver
#define         NU_Request_Driver               IOC_Request_Driver
#define         NU_Resume_Driver                IOC_Resume_Driver
#define         NU_Suspend_Driver               IOC_Suspend_Driver
#define         NU_Established_Drivers          IOF_Established_Drivers
#define         NU_Driver_Pointers              IOF_Driver_Pointers
#else
#define         NU_Create_Task                  TCCE_Create_Task
#define         NU_Delete_Task                  TCCE_Delete_Task
#define         NU_Reset_Task                   TCCE_Reset_Task
#define         NU_Terminate_Task               TCCE_Terminate_Task
#define         NU_Resume_Task                  TCCE_Resume_Service
#define         NU_Suspend_Task                 TCCE_Suspend_Service
#define         NU_Relinquish                   TCCE_Relinquish
#define         NU_Sleep                        TCCE_Task_Sleep
#define         NU_Change_Priority              TCSE_Change_Priority
#define         NU_Change_Preemption            TCSE_Change_Preemption
#define         NU_Change_Time_Slice            TCSE_Change_Time_Slice
#define         NU_Check_Stack                  TCT_Check_Stack
#define         NU_Current_Task_Pointer         TCC_Current_Task_Pointer
#define         NU_Established_Tasks            TCF_Established_Tasks
#define         NU_Task_Information             TCFE_Task_Information
#define         NU_Task_Pointers                TCF_Task_Pointers
#define         NU_Create_Mailbox               MBCE_Create_Mailbox
#define         NU_Delete_Mailbox               MBCE_Delete_Mailbox
#define         NU_Reset_Mailbox                MBSE_Reset_Mailbox
#define         NU_Send_To_Mailbox              MBCE_Send_To_Mailbox
#define         NU_Broadcast_To_Mailbox         MBSE_Broadcast_To_Mailbox
#define         NU_Receive_From_Mailbox         MBCE_Receive_From_Mailbox
#define         NU_Established_Mailboxes        MBF_Established_Mailboxes
#define         NU_Mailbox_Information          MBF_Mailbox_Information
#define         NU_Mailbox_Pointers             MBF_Mailbox_Pointers
#define         NU_Create_Queue                 QUCE_Create_Queue
#define         NU_Delete_Queue                 QUCE_Delete_Queue
#define         NU_Reset_Queue                  QUSE_Reset_Queue
#define         NU_Send_To_Queue                QUCE_Send_To_Queue
#define         NU_Send_To_Front_Of_Queue       QUSE_Send_To_Front_Of_Queue
#define         NU_Broadcast_To_Queue           QUSE_Broadcast_To_Queue
#define         NU_Receive_From_Queue           QUCE_Receive_From_Queue
#define         NU_Established_Queues           QUF_Established_Queues
#define         NU_Queue_Information            QUF_Queue_Information
#define         NU_Queue_Pointers               QUF_Queue_Pointers
#define         NU_Create_Pipe                  PICE_Create_Pipe 
#define         NU_Delete_Pipe                  PICE_Delete_Pipe 
#define         NU_Reset_Pipe                   PISE_Reset_Pipe
#define         NU_Send_To_Front_Of_Pipe        PISE_Send_To_Front_Of_Pipe 
#define         NU_Send_To_Pipe                 PICE_Send_To_Pipe 
#define         NU_Broadcast_To_Pipe            PISE_Broadcast_To_Pipe 
#define         NU_Receive_From_Pipe            PICE_Receive_From_Pipe 
#define         NU_Established_Pipes            PIF_Established_Pipes   
#define         NU_Pipe_Information             PIF_Pipe_Information
#define         NU_Pipe_Pointers                PIF_Pipe_Pointers
#define         NU_Create_Semaphore             SMCE_Create_Semaphore
#define         NU_Delete_Semaphore             SMCE_Delete_Semaphore
#define         NU_Reset_Semaphore              SMSE_Reset_Semaphore
#define         NU_Obtain_Semaphore             SMCE_Obtain_Semaphore
#define         NU_Release_Semaphore            SMCE_Release_Semaphore
#define         NU_Established_Semaphores       SMF_Established_Semaphores
#define         NU_Semaphore_Information        SMF_Semaphore_Information
#define         NU_Semaphore_Pointers           SMF_Semaphore_Pointers
#define         NU_Create_Event_Group           EVCE_Create_Event_Group
#define         NU_Delete_Event_Group           EVCE_Delete_Event_Group
#define         NU_Set_Events                   EVCE_Set_Events
#define         NU_Retrieve_Events              EVCE_Retrieve_Events
#define         NU_Established_Event_Groups     EVF_Established_Event_Groups
#define         NU_Event_Group_Information      EVF_Event_Group_Information
#define         NU_Event_Group_Pointers         EVF_Event_Group_Pointers
#define         NU_Create_Partition_Pool        PMCE_Create_Partition_Pool
#define         NU_Delete_Partition_Pool        PMCE_Delete_Partition_Pool
#define         NU_Allocate_Partition           PMCE_Allocate_Partition
#define         NU_Deallocate_Partition         PMCE_Deallocate_Partition
#define         NU_Established_Partition_Pools  PMF_Established_Partition_Pools
#define         NU_Partition_Pool_Information   PMF_Partition_Pool_Information
#define         NU_Partition_Pool_Pointers      PMF_Partition_Pool_Pointers
#define         NU_Create_Memory_Pool           DMCE_Create_Memory_Pool
#define         NU_Delete_Memory_Pool           DMCE_Delete_Memory_Pool

/* The following conditional routes memory allocation calls to functions
   that help track memory leaks. */
#ifdef NU_DEBUG_MEMORY
#define         NU_Deallocate_Memory            ERC_Deallocate_Memory
#else
#define         NU_Deallocate_Memory            DMCE_Deallocate_Memory
#endif /* NU_DEBUG_MEMORY */

#define         NU_Established_Memory_Pools     DMF_Established_Memory_Pools
#define         NU_Memory_Pool_Information      DMF_Memory_Pool_Information
#define         NU_Memory_Pool_Pointers         DMF_Memory_Pool_Pointers
#define         NU_Control_Signals              TCSE_Control_Signals
#define         NU_Receive_Signals              TCSE_Receive_Signals
#define         NU_Register_Signal_Handler      TCSE_Register_Signal_Handler
#define         NU_Send_Signals                 TCSE_Send_Signals
#define         NU_Setup_Vector                 INT_Setup_Vector
#define         NU_Register_LISR                TCC_Register_LISR
#define         NU_Activate_HISR                TCCE_Activate_HISR
#define         NU_Create_HISR                  TCCE_Create_HISR
#define         NU_Delete_HISR                  TCCE_Delete_HISR
#define         NU_Current_HISR_Pointer         TCC_Current_HISR_Pointer
#define         NU_Established_HISRs            TCF_Established_HISRs
#define         NU_HISR_Pointers                TCF_HISR_Pointers
#define         NU_HISR_Information             TCF_HISR_Information
#define         NU_Protect                      TCT_Protect
#define         NU_Unprotect                    TCT_Unprotect
#define         NU_Control_Interrupts           TCT_Control_Interrupts
#define         NU_Local_Control_Interrupts     TCT_Local_Control_Interrupts
#define         NU_Restore_Interrupts           TCT_Restore_Interrupts
#define         NU_Set_Clock                    TMT_Set_Clock
#define         NU_Retrieve_Clock               TMT_Retrieve_Clock
#define         NU_Create_Timer                 TMSE_Create_Timer
#define         NU_Delete_Timer                 TMSE_Delete_Timer
#define         NU_Control_Timer                TMSE_Control_Timer
#define         NU_Reset_Timer                  TMSE_Reset_Timer