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fix context bug(flag not clean) 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1695 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
wuyangyong 2011-09-05 15:06:14 +00:00
parent 446db862dd
commit 0a3eeb9f0a
1 changed files with 7 additions and 9 deletions
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16
libcpu/mips/pic32/context_gcc.S
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@ -93,17 +93,15 @@ _reswitch:
.globl CoreSW0Handler
CoreSW0Handler:
SAVE_ALL
SAVE_ALL
/* mCS0ClearIntFlag(); */
la t0, IFS0CLR /* t0 = IFS0CLR */
addiu t1,zero,0x02 /* t1 = (1<<2) */
sw t1, 0(t0) /* IFS0CLR = t1 */
/* mCS0ClearIntFlag(); */
la t0, IFS0CLR /* t0 = IFS0CLR */
addiu t1,zero,0x02 /* t1 = (1<<2) */
sw t1, 0(t0) /* IFS0CLR = t1 */
/* tol rd2 */
lui v1,0xbf88
addiu v0,zero,(1<<0)
sw v0,24812(v1)
la k0, rt_thread_switch_interrput_flag
sw zero, 0(k0) /* clear flag */
/*
* switch to the new thread