44 lines
916 B
C
44 lines
916 B
C
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#ifndef _H8300_IRQFLAGS_H
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#define _H8300_IRQFLAGS_H
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static inline unsigned long arch_local_save_flags(void)
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{
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unsigned long flags;
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asm volatile ("stc ccr,%w0" : "=r" (flags));
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return flags;
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}
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static inline void arch_local_irq_disable(void)
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{
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asm volatile ("orc #0x80,ccr" : : : "memory");
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}
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static inline void arch_local_irq_enable(void)
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{
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asm volatile ("andc #0x7f,ccr" : : : "memory");
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}
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static inline unsigned long arch_local_irq_save(void)
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{
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unsigned long flags = arch_local_save_flags();
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arch_local_irq_disable();
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return flags;
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}
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static inline void arch_local_irq_restore(unsigned long flags)
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{
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asm volatile ("ldc %w0,ccr" : : "r" (flags) : "memory");
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}
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static inline bool arch_irqs_disabled_flags(unsigned long flags)
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{
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return (flags & 0x80) == 0x80;
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}
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static inline bool arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(arch_local_save_flags());
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}
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#endif /* _H8300_IRQFLAGS_H */
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