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Fix Cortex-M0 assembly error when the interrupt stack is enabled

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Alan Carvalho de Assis 2015-06-30 08:41:47 -06:00 committed by Gregory Nutt
parent fb926e7283
commit 39b77fbe8b
1 changed files with 2 additions and 1 deletions
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3
arch/arm/src/armv6-m/up_exception.S
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@ -152,7 +152,8 @@ exception_common:
*/
#if CONFIG_ARCH_INTERRUPTSTACK > 3
ldr sp, =g_intstackbase
ldr r7, =g_intstackbase /* R7=Base of the interrupt stack */
mov sp, r7 /* Set the new stack point */
push {r1} /* Save the MSP on the interrupt stack */
bl up_doirq /* R0=IRQ, R1=register save area on stack */
pop {r1} /* Recover R1=main stack pointer */