diff options
| author | [email protected] <[email protected]> | 2012-10-26 03:36:13 +0000 |
|---|---|---|
| committer | [email protected] <[email protected]> | 2012-10-26 03:36:13 +0000 |
| commit | 6fe2afed8ca4deaa94cc9f8795fb8dcd7e880225 (patch) | |
| tree | 789cfbb616d3bb80cf95034e7bf77ac326b62adf /libcpu/xilinx/microblaze/stack.c | |
| parent | 2cdbbf8b0536b60ac931b7f401f731a4f560c37b (diff) | |
for rt-thread 1.1.0
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2372 bbd45198-f89e-11dd-88c7-29a3b14d5316
Diffstat (limited to 'libcpu/xilinx/microblaze/stack.c')
| -rwxr-xr-x | libcpu/xilinx/microblaze/stack.c | 79 |
1 files changed, 41 insertions, 38 deletions
diff --git a/libcpu/xilinx/microblaze/stack.c b/libcpu/xilinx/microblaze/stack.c index 6109ce4486..686fc078a3 100755 --- a/libcpu/xilinx/microblaze/stack.c +++ b/libcpu/xilinx/microblaze/stack.c @@ -13,8 +13,10 @@ * */ #include <rtthread.h> -extern void *_SDA_BASE_; -extern void *_SDA2_BASE_; +extern void *_SDA_BASE_; +extern void *_SDA2_BASE_; + + /** * This function will initialize thread stack @@ -26,43 +28,44 @@ extern void *_SDA2_BASE_; * * @return stack address */ -rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit) +rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, + rt_uint8_t *stack_addr, void *texit) { - unsigned long *stk; + 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; + 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; } |