libs/rt-thread-official
libs
/
rt-thread-official
mirror of https://github.com/RT-Thread/rt-thread.git
4
0
Fork 0
Code Issues Releases Wiki Activity

[libcpu]:optimize code format

This commit is contained in:
SummerGift 2017-12-21 14:54:54 +08:00
parent 15715692d2
commit e7b1786759
1 changed files with 35 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
libcpu/arm/armv6/stack.c
View File

@ -26,14 +26,14 @@
/*****************************/
/* CPU Mode */
/*****************************/
#define USERMODE 0x10
#define FIQMODE 0x11
#define IRQMODE 0x12
#define SVCMODE 0x13
#define ABORTMODE 0x17
#define UNDEFMODE 0x1b
#define MODEMASK 0x1f
#define NOINT 0xc0
#define USERMODE 0x10
#define FIQMODE 0x11
#define IRQMODE 0x12
#define SVCMODE 0x13
#define ABORTMODE 0x17
#define UNDEFMODE 0x1b
#define MODEMASK 0x1f
#define NOINT 0xc0
/**
* This function will initialize thread stack
@ -46,36 +46,36 @@
* @return stack address
*/
rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
rt_uint8_t *stack_addr, void *texit)
rt_uint8_t *stack_addr, void *texit)
{
rt_uint32_t *stk;
rt_uint32_t *stk;
stack_addr += sizeof(rt_uint32_t);
stack_addr = (rt_uint8_t *)RT_ALIGN_DOWN((rt_uint32_t)stack_addr, 8);
stk = (rt_uint32_t*)stack_addr;
*(--stk) = (rt_uint32_t)tentry; /* entry point */
*(--stk) = (rt_uint32_t)texit; /* lr */
*(--stk) = 0; /* r12 */
*(--stk) = 0; /* r11 */
*(--stk) = 0; /* r10 */
*(--stk) = 0; /* r9 */
*(--stk) = 0; /* r8 */
*(--stk) = 0; /* r7 */
*(--stk) = 0; /* r6 */
*(--stk) = 0; /* r5 */
*(--stk) = 0; /* r4 */
*(--stk) = 0; /* r3 */
*(--stk) = 0; /* r2 */
*(--stk) = 0; /* r1 */
*(--stk) = (rt_uint32_t)parameter; /* r0 : argument */
stack_addr += sizeof(rt_uint32_t);
stack_addr = (rt_uint8_t *)RT_ALIGN_DOWN((rt_uint32_t)stack_addr, 8);
stk = (rt_uint32_t*)stack_addr;
*(--stk) = (rt_uint32_t)tentry; /* entry point */
*(--stk) = (rt_uint32_t)texit; /* lr */
*(--stk) = 0; /* r12 */
*(--stk) = 0; /* r11 */
*(--stk) = 0; /* r10 */
*(--stk) = 0; /* r9 */
*(--stk) = 0; /* r8 */
*(--stk) = 0; /* r7 */
*(--stk) = 0; /* r6 */
*(--stk) = 0; /* r5 */
*(--stk) = 0; /* r4 */
*(--stk) = 0; /* r3 */
*(--stk) = 0; /* r2 */
*(--stk) = 0; /* r1 */
*(--stk) = (rt_uint32_t)parameter; /* r0 : argument */
/* cpsr */
if ((rt_uint32_t)tentry & 0x01)
*(--stk) = SVCMODE | 0x20; /* thumb mode */
else
*(--stk) = SVCMODE; /* arm mode */
/* cpsr */
if ((rt_uint32_t)tentry & 0x01)
*(--stk) = SVCMODE | 0x20; /* thumb mode */
else
*(--stk) = SVCMODE; /* arm mode */
/* return task's current stack address */
return (rt_uint8_t *)stk;
/* return task's current stack address */
return (rt_uint8_t *)stk;
}