1/**************************************************************************/
2/*                                                                        */
3/*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4/*                                                                        */
5/*       This software is licensed under the Microsoft Software License   */
6/*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7/*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8/*       and in the root directory of this software.                      */
9/*                                                                        */
10/**************************************************************************/
11
12
13/**************************************************************************/
14/**************************************************************************/
15/**                                                                       */
16/** ThreadX Component                                                     */
17/**                                                                       */
18/**   Thread                                                              */
19/**                                                                       */
20/**************************************************************************/
21/**************************************************************************/
22
23    .text
24    .align 4
25/**************************************************************************/
26/*                                                                        */
27/*  FUNCTION                                               RELEASE        */
28/*                                                                        */
29/*    _tx_thread_interrupt_control                     Cortex-Mx/GHS      */
30/*                                                           6.1.7        */
31/*  AUTHOR                                                                */
32/*                                                                        */
33/*    Scott Larson, Microsoft Corporation                                 */
34/*                                                                        */
35/*  DESCRIPTION                                                           */
36/*                                                                        */
37/*    This function is responsible for changing the interrupt lockout     */
38/*    posture of the system.                                              */
39/*                                                                        */
40/*  INPUT                                                                 */
41/*                                                                        */
42/*    new_posture                           New interrupt lockout posture */
43/*                                                                        */
44/*  OUTPUT                                                                */
45/*                                                                        */
46/*    old_posture                           Old interrupt lockout posture */
47/*                                                                        */
48/*  CALLS                                                                 */
49/*                                                                        */
50/*    None                                                                */
51/*                                                                        */
52/*  CALLED BY                                                             */
53/*                                                                        */
54/*    Application Code                                                    */
55/*                                                                        */
56/*  RELEASE HISTORY                                                       */
57/*                                                                        */
58/*    DATE              NAME                      DESCRIPTION             */
59/*                                                                        */
60/*  06-02-2021      Scott Larson            Initial Version 6.1.7         */
61/*                                                                        */
62/**************************************************************************/
63// UINT   _tx_thread_interrupt_control(UINT new_posture)
64// {
65    .globl  _tx_thread_interrupt_control
66_tx_thread_interrupt_control:
67    MRS     r1, PRIMASK                         // Pickup current interrupt lockout
68    MSR     PRIMASK, r0                         // Apply the new interrupt lockout
69    MOV     r0, r1                              // Transfer old to return register
70    BX      lr                                  // Return to caller
71// }
72    .type _tx_thread_interrupt_control,$function
73    .size _tx_thread_interrupt_control,.-_tx_thread_interrupt_control
74