diff options
| author | Bernard Xiong <[email protected]> | 2013-01-08 05:05:02 -0800 |
|---|---|---|
| committer | Bernard Xiong <[email protected]> | 2013-01-08 05:05:02 -0800 |
| commit | 72782e920325808bbc58fc2344fc52033479b627 (patch) | |
| tree | 45badbfa9818b8d1722463949beba0f88d1cbd9f /libcpu/ppc/common/stack.c | |
| parent | b3cf278502e605fa03861a2da5685b4c8d72879e (diff) | |
convert end of line
Diffstat (limited to 'libcpu/ppc/common/stack.c')
| -rw-r--r-- | libcpu/ppc/common/stack.c | 176 |
1 files changed, 88 insertions, 88 deletions
diff --git a/libcpu/ppc/common/stack.c b/libcpu/ppc/common/stack.c index 05ae5abb80..570e9ba046 100644 --- a/libcpu/ppc/common/stack.c +++ b/libcpu/ppc/common/stack.c @@ -1,88 +1,88 @@ -/*
- * File : stack.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006-2011, 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://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2011-02-14 Fred first implementation for
- */
-
-#include <rtthread.h>
-
-/**
- * @addtogroup PowerPC
- */
-/*@{*/
-
-/**
- * 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;
- rt_uint32_t msr;
-
- __asm__ __volatile__("mfmsr %0\n" : "=r" (msr));
- msr |= 0x00028000;
-
- stk = (unsigned long *)stack_addr;
- --stk;
- *(--stk) = msr; /* srr0: machine status register */
- *(--stk) = (rt_uint32_t)tentry; /* srr1: entry point */
- *(--stk) = (rt_uint32_t)texit; /* lr: link register */
- *(--stk) = 0x0F0F0F0F; /* ctr: counter register */
- *(--stk) = 0x0F0F0F0F; /* xer: fixed-point exception register */
- *(--stk) = 0x0F0F0F0F; /* cr : condition register */
- *(--stk) = 0x00; /* usprg0 */
-
- *(--stk) = 0x31; /* r31 */
- *(--stk) = 0x30; /* r30 */
- *(--stk) = 0x29; /* r29 */
- *(--stk) = 0x28; /* r28 */
- *(--stk) = 0x27; /* r27 */
- *(--stk) = 0x26; /* r26 */
- *(--stk) = 0x25; /* r25 */
- *(--stk) = 0x24; /* r24 */
- *(--stk) = 0x23; /* r23 */
- *(--stk) = 0x22; /* r22 */
- *(--stk) = 0x21; /* r21 */
- *(--stk) = 0x20; /* r20 */
- *(--stk) = 0x19; /* r19 */
- *(--stk) = 0x18; /* r18 */
- *(--stk) = 0x17; /* r17 */
- *(--stk) = 0x16; /* r16 */
- *(--stk) = 0x15; /* r15 */
- *(--stk) = 0x14; /* r14 */
- *(--stk) = 0x13; /* r13: thread id */
- *(--stk) = 0x12; /* r12 */
- *(--stk) = 0x11; /* r11 */
- *(--stk) = 0x10; /* r10 */
- *(--stk) = 0x09; /* r09 */
- *(--stk) = 0x08; /* r08 */
- *(--stk) = 0x07; /* r07 */
- *(--stk) = 0x06; /* r06 */
- *(--stk) = 0x05; /* r05 */
- *(--stk) = 0x04; /* r04 */
- *(--stk) = (rt_uint32_t)parameter; /* r03: parameter and return */
- *(--stk) = 0x02; /* r02: toc */
- /* r01: sp */
- *(--stk) = 0x0; /* r00 */
-
- /* return task's current stack address */
- return (rt_uint8_t *)stk;
-}
-
-/*@}*/
+/* + * File : stack.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2006-2011, 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://www.rt-thread.org/license/LICENSE + * + * Change Logs: + * Date Author Notes + * 2011-02-14 Fred first implementation for + */ + +#include <rtthread.h> + +/** + * @addtogroup PowerPC + */ +/*@{*/ + +/** + * 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; + rt_uint32_t msr; + + __asm__ __volatile__("mfmsr %0\n" : "=r" (msr)); + msr |= 0x00028000; + + stk = (unsigned long *)stack_addr; + --stk; + *(--stk) = msr; /* srr0: machine status register */ + *(--stk) = (rt_uint32_t)tentry; /* srr1: entry point */ + *(--stk) = (rt_uint32_t)texit; /* lr: link register */ + *(--stk) = 0x0F0F0F0F; /* ctr: counter register */ + *(--stk) = 0x0F0F0F0F; /* xer: fixed-point exception register */ + *(--stk) = 0x0F0F0F0F; /* cr : condition register */ + *(--stk) = 0x00; /* usprg0 */ + + *(--stk) = 0x31; /* r31 */ + *(--stk) = 0x30; /* r30 */ + *(--stk) = 0x29; /* r29 */ + *(--stk) = 0x28; /* r28 */ + *(--stk) = 0x27; /* r27 */ + *(--stk) = 0x26; /* r26 */ + *(--stk) = 0x25; /* r25 */ + *(--stk) = 0x24; /* r24 */ + *(--stk) = 0x23; /* r23 */ + *(--stk) = 0x22; /* r22 */ + *(--stk) = 0x21; /* r21 */ + *(--stk) = 0x20; /* r20 */ + *(--stk) = 0x19; /* r19 */ + *(--stk) = 0x18; /* r18 */ + *(--stk) = 0x17; /* r17 */ + *(--stk) = 0x16; /* r16 */ + *(--stk) = 0x15; /* r15 */ + *(--stk) = 0x14; /* r14 */ + *(--stk) = 0x13; /* r13: thread id */ + *(--stk) = 0x12; /* r12 */ + *(--stk) = 0x11; /* r11 */ + *(--stk) = 0x10; /* r10 */ + *(--stk) = 0x09; /* r09 */ + *(--stk) = 0x08; /* r08 */ + *(--stk) = 0x07; /* r07 */ + *(--stk) = 0x06; /* r06 */ + *(--stk) = 0x05; /* r05 */ + *(--stk) = 0x04; /* r04 */ + *(--stk) = (rt_uint32_t)parameter; /* r03: parameter and return */ + *(--stk) = 0x02; /* r02: toc */ + /* r01: sp */ + *(--stk) = 0x0; /* r00 */ + + /* return task's current stack address */ + return (rt_uint8_t *)stk; +} + +/*@}*/ |