diff options
Diffstat (limited to 'ports/arm9/gnu/src/tx_timer_interrupt.S')
| -rw-r--r-- | ports/arm9/gnu/src/tx_timer_interrupt.S | 79 |
1 files changed, 35 insertions, 44 deletions
diff --git a/ports/arm9/gnu/src/tx_timer_interrupt.S b/ports/arm9/gnu/src/tx_timer_interrupt.S index 48bee7f7..9ae148bf 100644 --- a/ports/arm9/gnu/src/tx_timer_interrupt.S +++ b/ports/arm9/gnu/src/tx_timer_interrupt.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 */ @/** */ @/** Timer */ @/** */ @@ -48,7 +48,7 @@ .type $_tx_timer_interrupt,function $_tx_timer_interrupt: BX pc @ Switch to 32-bit mode - NOP @ + NOP @ .arm STMFD sp!, {lr} @ Save return address BL _tx_timer_interrupt @ Call _tx_timer_interrupt function @@ -58,49 +58,40 @@ $_tx_timer_interrupt: @ .text .align 2 -@/**************************************************************************/ -@/* */ -@/* FUNCTION RELEASE */ -@/* */ -@/* _tx_timer_interrupt ARM9/GNU */ +@/**************************************************************************/ +@/* */ +@/* FUNCTION RELEASE */ +@/* */ +@/* _tx_timer_interrupt ARM9/GNU */ @/* 6.2.1 */ @/* AUTHOR */ @/* */ @/* William E. Lamie, Microsoft Corporation */ @/* */ @/* DESCRIPTION */ -@/* */ -@/* This function processes the hardware timer interrupt. This */ -@/* processing includes incrementing the system clock and checking for */ -@/* time slice and/or timer expiration. If either is found, the */ -@/* interrupt context save/restore functions are called along with the */ -@/* expiration functions. */ -@/* */ -@/* INPUT */ -@/* */ -@/* None */ -@/* */ -@/* OUTPUT */ -@/* */ -@/* None */ -@/* */ -@/* CALLS */ -@/* */ -@/* _tx_thread_time_slice Time slice interrupted thread */ -@/* _tx_timer_expiration_process Timer expiration processing */ -@/* */ -@/* CALLED BY */ -@/* */ -@/* interrupt vector */ -@/* */ -@/* RELEASE HISTORY */ -@/* */ -@/* DATE NAME DESCRIPTION */ @/* */ -@/* 09-30-2020 William E. Lamie Initial Version 6.1 */ -@/* 03-08-2023 Cindy Deng Modified comment(s), added */ -@/* #include tx_user.h, */ -@/* resulting in version 6.2.1 */ +@/* This function processes the hardware timer interrupt. This */ +@/* processing includes incrementing the system clock and checking for */ +@/* time slice and/or timer expiration. If either is found, the */ +@/* interrupt context save/restore functions are called along with the */ +@/* expiration functions. */ +@/* */ +@/* INPUT */ +@/* */ +@/* None */ +@/* */ +@/* OUTPUT */ +@/* */ +@/* None */ +@/* */ +@/* CALLS */ +@/* */ +@/* _tx_thread_time_slice Time slice interrupted thread */ +@/* _tx_timer_expiration_process Timer expiration processing */ +@/* */ +@/* CALLED BY */ +@/* */ +@/* interrupt vector */ @/* */ @/**************************************************************************/ @VOID _tx_timer_interrupt(VOID) @@ -125,7 +116,7 @@ _tx_timer_interrupt: @ if (_tx_timer_time_slice) @ { @ - LDR r3, =_tx_timer_time_slice @ Pickup address of time-slice + LDR r3, =_tx_timer_time_slice @ Pickup address of time-slice LDR r2, [r3] @ Pickup time-slice CMP r2, #0 @ Is it non-active? BEQ __tx_timer_no_time_slice @ Yes, skip time-slice processing @@ -243,7 +234,7 @@ __tx_timer_dont_activate: @ if (_tx_timer_expired_time_slice) @ { @ - LDR r3, =_tx_timer_expired_time_slice @ Pickup address of time-slice expired + LDR r3, =_tx_timer_expired_time_slice @ Pickup address of time-slice expired LDR r2, [r3] @ Pickup the actual flag CMP r2, #0 @ See if the flag is set BEQ __tx_timer_not_ts_expiration @ No, skip time-slice processing |