原始版本

2025-06-19 21:56:46 +08:00
parent fe98e5f010
commit a4841450cf
4152 changed files with 1910684 additions and 0 deletions
--- a/RT_Thread/libcpu/xilinx/microblaze/stack.c
+++ b/RT_Thread/libcpu/xilinx/microblaze/stack.c
@ -0,0 +1,71 @@
+/*
+ * File      : stack.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://openlab.rt-thread.com/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2011-12-17     nl1031       first implementation for MicroBlaze.
+ *
+ */
+#include <rtthread.h>
+extern   void  *_SDA_BASE_;
+extern   void  *_SDA2_BASE_;
+
+
+
+/**
+ * This function will initialize thread stack
+ *
+ * @param tentry the entry of thread
+ * @param parameter the parameter of entry
+ * @param stack_addr the beginning stack address
+ * @param texit the function will be called when thread exit
+ *
+ * @return stack address
+ */
+rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
+    rt_uint8_t *stack_addr, void *texit)
+{
+    unsigned long *stk;
+
+    stk      = (unsigned long *)stack_addr;
+    stk--;
+    stk--;
+    *stk-- = 0;                             /* r31 */
+    *stk-- = 0;                             /* r30 */
+    *stk-- = 0;                             /* r29 */
+    *stk-- = 0;                             /* r28 */
+    *stk-- = 0;                             /* r27 */
+    *stk-- = 0;                             /* r26 */
+    *stk-- = 0;                             /* r25 */
+    *stk-- = 0;                             /* r24 */
+    *stk-- = 0;                             /* r23 */
+    *stk-- = 0;                             /* r22 */
+    *stk-- = 0;                             /* r21 */
+    *stk-- = 0;                             /* r20 */
+    *stk-- = 0;                             /* r19 */
+    *stk-- = 0;                             /* r18 */
+    *stk-- = 0;                             /* r17 */
+    *stk-- = (unsigned long)texit - 8;      /* r15 = task return address*/
+    *stk-- = (unsigned long)tentry;     /* r14 = entry address*/
+    *stk-- = (unsigned long)&_SDA_BASE_;    /* r13 */
+    *stk-- = 0;                             /* r12 */
+    *stk-- = 0;                             /* r11 */
+    *stk-- = 0;                             /* r10 */
+    *stk-- = 0;                             /* r09 */
+    *stk-- = 0;                             /* r08 */
+    *stk-- = 0;                             /* r07 */
+    *stk-- = 0;                             /* r06 */
+    *stk-- = (unsigned long) parameter; /* r05 */
+    *stk-- = 0;                             /* r04 */
+    *stk-- = 0;                             /* r03 */
+    *stk-- = (unsigned long)&_SDA2_BASE_;   /* r02 */
+    *stk   = 2;                             /* enable interrupt */
+    return (rt_uint8_t *)stk;
+}
+