Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Nuvoton/M05x_registers/INT/IRQ4_SRC#0x0
MCU IRQ4 (P0/1) interrupt source identify
Bit2 = 0 Bit1: P1_INT Bit0: P0_INT
https://github.com/cmsis-svd/cmsis-svd-data