/* * Thunk code to assist with bitwise operations (set/clear) via FEL */ fel_clrsetbits_le32: ldr r0, 1f /* address */ ldr r1, [r0] /* load value */ ldr r2, 2f /* clrbits mask */ bic r1, r2 /* clear bits, post-increment r1 */ ldr r2, 3f /* setbits mask */ orr r1, r2 /* set bits (logical "or") */ str r1, [r0] /* store result */ bx lr 1: .word 0 /* addr */ 2: .word 0 /* clrbits (= bits to clear) */ 3: .word 0 /* setbits (= bits to set) */