;/***************************************************************************
; * Copyright (c) 2024 Microsoft Corporation 
; * 
; * This program and the accompanying materials are made available under the
; * terms of the MIT License which is available at
; * https://opensource.org/licenses/MIT.
; * 
; * SPDX-License-Identifier: MIT
; **************************************************************************/
;
;
;/**************************************************************************/
;/**************************************************************************/
;/**                                                                       */ 
;/** ThreadX Component                                                     */ 
;/**                                                                       */
;/**   Thread                                                              */
;/**                                                                       */
;/**************************************************************************/
;/**************************************************************************/
;
;#define TX_SOURCE_CODE
;
;
;/* Include necessary system files.  */
;
;#include "tx_api.h"
;#include "tx_thread.h"
;
;
    IF :DEF:TX_ENABLE_FIQ_SUPPORT
DISABLE_INTS    EQU         0xC0                ; IRQ & FIQ interrupts disabled
    ELSE
DISABLE_INTS    EQU         0x80                ; IRQ interrupts disabled
    ENDIF
;
;
        AREA ||.text||, CODE, READONLY
;/**************************************************************************/ 
;/*                                                                        */ 
;/*  FUNCTION                                               RELEASE        */ 
;/*                                                                        */ 
;/*    _tx_thread_interrupt_disable                        ARM11/AC5       */ 
;/*                                                            6.1         */
;/*  AUTHOR                                                                */
;/*                                                                        */
;/*    William E. Lamie, Microsoft Corporation                             */
;/*                                                                        */
;/*  DESCRIPTION                                                           */
;/*                                                                        */ 
;/*    This function is responsible for disabling interrupts               */ 
;/*                                                                        */ 
;/*  INPUT                                                                 */ 
;/*                                                                        */ 
;/*    None                                                                */ 
;/*                                                                        */ 
;/*  OUTPUT                                                                */ 
;/*                                                                        */ 
;/*    old_posture                           Old interrupt lockout posture */ 
;/*                                                                        */ 
;/*  CALLS                                                                 */ 
;/*                                                                        */ 
;/*    None                                                                */ 
;/*                                                                        */ 
;/*  CALLED BY                                                             */ 
;/*                                                                        */ 
;/*    Application Code                                                    */ 
;/*                                                                        */ 
;/*  RELEASE HISTORY                                                       */ 
;/*                                                                        */ 
;/*    DATE              NAME                      DESCRIPTION             */
;/*                                                                        */
;/*  09-30-2020     William E. Lamie         Initial Version 6.1           */
;/*                                                                        */
;/**************************************************************************/
;UINT   _tx_thread_interrupt_disable(void)
;{
    EXPORT _tx_thread_interrupt_disable
_tx_thread_interrupt_disable
;
;    /* Pickup current interrupt lockout posture.  */
;
    MRS     r0, CPSR                            ; Pickup current CPSR
;
;    /* Mask interrupts.  */
;
    ORR     r1, r0, #DISABLE_INTS               ; Mask interrupts
    MSR     CPSR_cxsf, r1                       ; Setup new CPSR
    IF  {INTER} = {TRUE}
    BX      lr                                  ; Return to caller
    ELSE
    MOV     pc, lr                              ; Return to caller
    ENDIF
;}
;
    END