← Back to archive

Stdle #52 · branching · 2026-07-28

What does this Assembly snippet output?

A past puzzle — fully playable. 4 attempts, hints on wrong guesses.

.global _main
.align 2
_main:
stp x29, x30, [sp, #-32]!
mov w8, #-3
cmp w8, #0
b.lt negative
mov w9, #0
b done
negative:
mov w9, #1
done:
sub sp, sp, #16
str x9, [sp]
adrp x0, fmt@PAGE
add x0, x0, fmt@PAGEOFF
bl _printf
add sp, sp, #16
ldp x29, x30, [sp], #32
mov w0, #0
ret
.section __TEXT,__cstring
fmt: .asciz "%d\n"
Branching
4 attempts left

Answer & explanation