15 beq 1f @ 0-sized bss, skip clear
30 ldr r3, =0x3f200000 @ gpio base
31 ldr r2, =0x9000 @ gpio 24 and 25 -> output
32 str r2, [r3, #8] @ store to GPFSEL2
33 ldr r2, =0x01000000 @ bit 24
35 streq r2, [r3, #0x1c] @ GPSET0
36 strne r2, [r3, #0x28] @ GPCLR0
38 strne r2, [r3, #0x1c] @ GPSET0
39 streq r2, [r3, #0x28] @ GPCLR0
42 @ vi:set filetype=armasm: