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diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/rtos/rtx/TARGET_CORTEX_A/rt_System.c b/tmk_core/tool/mbed/mbed-sdk/libraries/rtos/rtx/TARGET_CORTEX_A/rt_System.c
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index 0000000000..db8c32b02e
--- /dev/null
+++ b/tmk_core/tool/mbed/mbed-sdk/libraries/rtos/rtx/TARGET_CORTEX_A/rt_System.c
@@ -0,0 +1,304 @@
+/*----------------------------------------------------------------------------
+ * RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ * Name: RT_SYSTEM.C
+ * Purpose: System Task Manager
+ * Rev.: V4.60
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * - Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Config.h"
+#include "rt_Task.h"
+#include "rt_System.h"
+#include "rt_Event.h"
+#include "rt_List.h"
+#include "rt_Mailbox.h"
+#include "rt_Semaphore.h"
+#include "rt_Time.h"
+#include "rt_Timer.h"
+#include "rt_Robin.h"
+#ifdef __CORTEX_A9
+#include "rt_HAL_CA.h"
+#else
+#include "rt_HAL_CM.h"
+#endif
+
+/*----------------------------------------------------------------------------
+ * Global Variables
+ *---------------------------------------------------------------------------*/
+
+int os_tick_irqn;
+
+/*----------------------------------------------------------------------------
+ * Local Variables
+ *---------------------------------------------------------------------------*/
+
+static volatile BIT os_lock;
+static volatile BIT os_psh_flag;
+#ifndef __CORTEX_A9
+static U8 pend_flags;
+#endif
+/*----------------------------------------------------------------------------
+ * Global Functions
+ *---------------------------------------------------------------------------*/
+
+#if defined (__CC_ARM)
+__asm void $$RTX$$version (void) {
+ /* Export a version number symbol for a version control. */
+
+ EXPORT __RL_RTX_VER
+
+__RL_RTX_VER EQU 0x450
+}
+#endif
+
+
+/*--------------------------- rt_suspend ------------------------------------*/
+
+U32 rt_suspend (void) {
+ /* Suspend OS scheduler */
+ U32 delta = 0xFFFF;
+
+ rt_tsk_lock();
+
+ if (os_dly.p_dlnk) {
+ delta = os_dly.delta_time;
+ }
+#ifndef __CMSIS_RTOS
+ if (os_tmr.next) {
+ if (os_tmr.tcnt < delta) delta = os_tmr.tcnt;
+ }
+#endif
+
+ return (delta);
+}
+
+
+/*--------------------------- rt_resume -------------------------------------*/
+
+void rt_resume (U32 sleep_time) {
+ /* Resume OS scheduler after suspend */
+ P_TCB next;
+ U32 delta;
+
+ os_tsk.run->state = READY;
+ rt_put_rdy_first (os_tsk.run);
+
+ os_robin.task = NULL;
+
+ /* Update delays. */
+ if (os_dly.p_dlnk) {
+ delta = sleep_time;
+ if (delta >= os_dly.delta_time) {
+ delta -= os_dly.delta_time;
+ os_time += os_dly.delta_time;
+ os_dly.delta_time = 1;
+ while (os_dly.p_dlnk) {
+ rt_dec_dly();
+ if (delta == 0) break;
+ delta--;
+ os_time++;
+ }
+ } else {
+ os_time += delta;
+ os_dly.delta_time -= delta;
+ }
+ } else {
+ os_time += sleep_time;
+ }
+
+#ifndef __CMSIS_RTOS
+ /* Check the user timers. */
+ if (os_tmr.next) {
+ delta = sleep_time;
+ if (delta >= os_tmr.tcnt) {
+ delta -= os_tmr.tcnt;
+ os_tmr.tcnt = 1;
+ while (os_tmr.next) {
+ rt_tmr_tick();
+ if (delta == 0) break;
+ delta--;
+ }
+ } else {
+ os_tmr.tcnt -= delta;
+ }
+ }
+#endif
+
+ /* Switch back to highest ready task */
+ next = rt_get_first (&os_rdy);
+ rt_switch_req (next);
+
+ rt_tsk_unlock();
+}
+
+
+/*--------------------------- rt_tsk_lock -----------------------------------*/
+
+void rt_tsk_lock (void) {
+ /* Prevent task switching by locking out scheduler */
+ if (os_tick_irqn < 0) {
+ OS_LOCK();
+ os_lock = __TRUE;
+ OS_UNPEND (&pend_flags);
+ } else {
+ OS_X_LOCK(os_tick_irqn);
+ os_lock = __TRUE;
+ OS_X_UNPEND (&pend_flags);
+ }
+}
+
+
+/*--------------------------- rt_tsk_unlock ---------------------------------*/
+
+void rt_tsk_unlock (void) {
+ /* Unlock scheduler and re-enable task switching */
+ if (os_tick_irqn < 0) {
+ OS_UNLOCK();
+ os_lock = __FALSE;
+ OS_PEND (pend_flags, os_psh_flag);
+ os_psh_flag = __FALSE;
+ } else {
+ OS_X_UNLOCK(os_tick_irqn);
+ os_lock = __FALSE;
+ OS_X_PEND (pend_flags, os_psh_flag);
+ os_psh_flag = __FALSE;
+ }
+}
+
+
+/*--------------------------- rt_psh_req ------------------------------------*/
+
+void rt_psh_req (void) {
+ /* Initiate a post service handling request if required. */
+ if (os_lock == __FALSE) {
+ OS_PEND_IRQ ();
+ }
+ else {
+ os_psh_flag = __TRUE;
+ }
+}
+
+
+/*--------------------------- rt_pop_req ------------------------------------*/
+
+void rt_pop_req (void) {
+ /* Process an ISR post service requests. */
+ struct OS_XCB *p_CB;
+ P_TCB next;
+ U32 idx;
+
+ os_tsk.run->state = READY;
+ rt_put_rdy_first (os_tsk.run);
+
+ idx = os_psq->last;
+ while (os_psq->count) {
+ p_CB = os_psq->q[idx].id;
+ if (p_CB->cb_type == TCB) {
+ /* Is of TCB type */
+ rt_evt_psh ((P_TCB)p_CB, (U16)os_psq->q[idx].arg);
+ }
+ else if (p_CB->cb_type == MCB) {
+ /* Is of MCB type */
+ rt_mbx_psh ((P_MCB)p_CB, (void *)os_psq->q[idx].arg);
+ }
+ else {
+ /* Must be of SCB type */
+ rt_sem_psh ((P_SCB)p_CB);
+ }
+ if (++idx == os_psq->size) idx = 0;
+ rt_dec (&os_psq->count);
+ }
+ os_psq->last = idx;
+
+ next = rt_get_first (&os_rdy);
+ rt_switch_req (next);
+}
+
+
+/*--------------------------- os_tick_init ----------------------------------*/
+
+__weak int os_tick_init (void) {
+ /* Initialize SysTick timer as system tick timer. */
+ rt_systick_init ();
+ return (-1); /* Return IRQ number of SysTick timer */
+}
+
+
+/*--------------------------- os_tick_irqack --------------------------------*/
+
+__weak void os_tick_irqack (void) {
+ /* Acknowledge timer interrupt. */
+}
+
+
+/*--------------------------- rt_systick ------------------------------------*/
+
+extern void sysTimerTick(void);
+
+void rt_systick (void) {
+ /* Check for system clock update, suspend running task. */
+ P_TCB next;
+
+ os_tsk.run->state = READY;
+ rt_put_rdy_first (os_tsk.run);
+
+ /* Check Round Robin timeout. */
+ rt_chk_robin ();
+
+ /* Update delays. */
+ os_time++;
+ rt_dec_dly ();
+
+ /* Check the user timers. */
+#ifdef __CMSIS_RTOS
+ sysTimerTick();
+#else
+ rt_tmr_tick ();
+#endif
+
+ /* Switch back to highest ready task */
+ next = rt_get_first (&os_rdy);
+ rt_switch_req (next);
+}
+
+/*--------------------------- rt_stk_check ----------------------------------*/
+
+__weak void rt_stk_check (void) {
+ /* Check for stack overflow. */
+ if ((os_tsk.run->tsk_stack < (U32)os_tsk.run->stack) ||
+ (os_tsk.run->stack[0] != MAGIC_WORD)) {
+ os_error (OS_ERR_STK_OVF);
+ }
+}
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
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