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Update port.c

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Error on my part, this is the right inline asm code to retreive CPSR register
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Simon Beaudoin 2020-07-19 22:14:37 -04:00 • committed by GitHub
parent 7111a5a21b
commit ba19cf89ed
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1 changed files with 8 additions and 4 deletions
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12
portable/GCC/ARM_CR5/port.c
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@ -149,10 +149,14 @@
/* Adding the necessary stuff in order to be able to determine from C code wheter or not the IRQs are enabled at the processor level (not interrupt controller level) */
#define GET_CPSR() __asm__ __volatile__(\
"msr cpsr,%0\n"\
: : "r" (v)\
)
#define GET_CPSR() ({u32 rval = 0U; \
__asm__ __volatile__(\
"mrs %0, cpsr\n"\
: "=r" (rval)\
);\
rval;\
})
#define CPSR_IRQ_ENABLE_MASK 0x80U
#define IS_IRQ_DISABLED() ({unsigned int val = 0; val = (GET_CPSR() & CPSR_IRQ_ENABLE_MASK) ? 1 : 0; val;})