We do not manipulate the CPSR register outside of irq_%, so we can just restore it's previous value and don't have to fiddle with the IRQ MASK bit. See https://www.keil.com/pack/doc/CMSIS/Core_A/html/group__CMSIS__CPSR.html
We do not manipulate the CPSR register outside of irq_%, so we can just restore it's previous value and don't have to fiddle with the IRQ MASK bit. See https://www.keil.com/pack/doc/CMSIS/Core_A/html/group__CMSIS__CPSR.html