diff options
Diffstat (limited to 'ports/rxv2/iar/src/tx_thread_schedule.s')
| -rw-r--r-- | ports/rxv2/iar/src/tx_thread_schedule.s | 97 |
1 files changed, 41 insertions, 56 deletions
diff --git a/ports/rxv2/iar/src/tx_thread_schedule.s b/ports/rxv2/iar/src/tx_thread_schedule.s index 5cf106c7..8d0c02f6 100644 --- a/ports/rxv2/iar/src/tx_thread_schedule.s +++ b/ports/rxv2/iar/src/tx_thread_schedule.s @@ -1,18 +1,18 @@ ;/*************************************************************************** -; * Copyright (c) 2024 Microsoft Corporation -; * +; * 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 */ +;/** */ +;/** ThreadX Component */ ;/** */ ;/** Thread */ ;/** */ @@ -41,56 +41,41 @@ section .text:CODE:ROOT -;/**************************************************************************/ -;/* */ -;/* FUNCTION RELEASE */ -;/* */ +;/**************************************************************************/ +;/* */ +;/* FUNCTION RELEASE */ +;/* */ ;/* _tx_thread_schedule RXv2/IAR */ ;/* 6.1.11 */ -;/* AUTHOR */ -;/* */ +;/* AUTHOR */ +;/* */ ;/* William E. Lamie, Microsoft Corporation */ -;/* */ -;/* DESCRIPTION */ -;/* */ -;/* This function waits for a thread control block pointer to appear in */ -;/* the _tx_thread_execute_ptr variable. Once a thread pointer appears */ -;/* in the variable, the corresponding thread is resumed. */ -;/* */ -;/* INPUT */ -;/* */ -;/* None */ -;/* */ -;/* OUTPUT */ -;/* */ +;/* */ +;/* DESCRIPTION */ +;/* */ +;/* This function waits for a thread control block pointer to appear in */ +;/* the _tx_thread_execute_ptr variable. Once a thread pointer appears */ +;/* in the variable, the corresponding thread is resumed. */ +;/* */ +;/* INPUT */ +;/* */ ;/* None */ -;/* */ -;/* CALLS */ -;/* */ +;/* */ +;/* OUTPUT */ +;/* */ ;/* None */ -;/* */ -;/* CALLED BY */ -;/* */ -;/* _tx_initialize_kernel_enter ThreadX entry function */ -;/* _tx_thread_system_return Return to system from thread */ -;/* _tx_thread_context_restore Restore thread's context */ -;/* */ -;/* RELEASE HISTORY */ -;/* */ -;/* DATE NAME DESCRIPTION */ -;/* */ -;/* 12-30-2020 William E. Lamie Initial Version 6.1.3 */ -;/* 10-15-2021 William E. Lamie Modified comment(s), and */ -;/* removed unnecessary stack */ -;/* type checking, */ -;/* resulting in version 6.1.9 */ -;/* 01-31-2022 William E. Lamie Modified comment(s), */ -;/* resulting in version 6.1.10 */ -;/* 04-25-2022 William E. Lamie Modified comment(s), and */ -;/* added low power support, */ -;/* resulting in version 6.1.11 */ -;/* */ -;/**************************************************************************/ +;/* */ +;/* CALLS */ +;/* */ +;/* None */ +;/* */ +;/* CALLED BY */ +;/* */ +;/* _tx_initialize_kernel_enter ThreadX entry function */ +;/* _tx_thread_system_return Return to system from thread */ +;/* _tx_thread_context_restore Restore thread's context */ +;/* */ +;/**************************************************************************/ ;VOID _tx_thread_schedule(VOID) ;{ public __tx_thread_schedule @@ -108,7 +93,7 @@ __tx_thread_schedule_loop: MOV.L [R1],R2 ; Pickup next thread to execute CMP #0,R2 ; Is it NULL? BNE __tx_thread_thread_ready ; Not NULL, schedule the thread - ; Idle system - no thread is ready + ; Idle system - no thread is ready #if (TX_LOW_POWER == 1) MOV.L #__tx_thread_preempt_disable, R1 ; Load prempt disable flag. MOV.L [R1], R2 @@ -137,7 +122,7 @@ __tx_thread_thread_ready: ; ; } ; while(_tx_thread_execute_ptr == TX_NULL); -; +; ; /* Yes! We have a thread to execute. Note that interrupts are locked out at this point. */ ; ; /* Setup the current thread pointer. */ @@ -173,14 +158,14 @@ __tx_thread_thread_ready: MVTACLO R3, A1 MVTACHI R2, A1 MVTACGU R1, A1 - + POPM R6-R13 ; Recover interrupt stack frame - POPC FPSW + POPC FPSW POPM R14-R15 POPM R3-R5 - POPM R1-R2 + POPM R1-R2 RTE ; Return to point of interrupt, this restores PC and PSW - + ;} extern __tx_thread_context_save |